Artículos de revistas: "Peruvianum"

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Burke, Janelle M. y Fabian Michelangeli. "Lectotypification of Peruvian Melastomataceae described by Cogniaux from Weberbauer collections". Phytotaxa 125, n.º 1 (21 de agosto de 2013): 10. http://dx.doi.org/10.11646/phytotaxa.125.1.2.

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We provide a comprehensive reference for lectotypifications of Peruvian Melastomataceae taxa described by Cogniaux in 1908 from Weberbauer specimens at Berlin. Of the 45 taxa described from the Cogniaux publication, we designate new lectotypes for 39 taxa: Axinaea nitida, Axinaea tetragona, Blakea villosa, Brachyotum asperum, Centradeniastrum roseum, Calyptrella robusta, Graffenrieda foliosa, Macrocentrum fasciculatum var. peruvianum, Miconia alpina, Miconia atrofusca, Miconia brevistylis, Miconia chrysanthera, Miconia crassistigma, Miconia densifolia, Miconia dumetosa, Miconia falcata, Miconia floccosa, Miconia fruticulosa, Miconia glutinosa, Miconia grisea, Miconia hamata, Miconia lugubris, Miconia monzoniensis, Miconia neriifolia var. brevifolia, Miconia nigricans, Miconia secundifolia, Miconia setinervia, Miconia urbaniana, Miconia weberbaueri, Myrmidone peruviana, Tibouchina asperifolia, Tibouchina brevisepala, Tibouchina calycina, Tibouchina calycina var. parvifolia, Tibouchina cymosa, Tibouchina laevis, Tibouchina rhynchantherifolia, Tibouchina virescens, and Tibouchina weberbaueri.

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Molinari-Novoa, Eduardo Antonio. "Further Nomenclatural Changes Regarding Peruvian Endemics". Polish Botanical Journal 61, n.º 2 (1 de diciembre de 2016): 275–77. http://dx.doi.org/10.1515/pbj-2016-0021.

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Abstract The nomenclature of eight species of Peruvian endemic plants from six genera (Arenaria L., Calceolaria L., Erigeron L., Pycnophyllum J. Rémy, Pycnophyllopsis Skottsb., Schizotrichia Benth.) is reviewed, and the corresponding changes are proposed. Additionally, lectotypes for Pycnophyllum peruvianum Muschl. and P. macrophyllum Muschl. are selected, and conservation assessments are provided for all species.

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Alleman Haeghebaert, Vera. "Ejemplares representativos de las colecciones de paleobotánica peruana en el museo de historia natural “Vera Alleman Haeghebaert”". Biotempo 13 (7 de julio de 2017): 46–51. http://dx.doi.org/10.31381/biotempo.v13i0.795.

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Se registran ocho ejemplares representativos provenientes de diversos proyectos de investigación, publicados o en estudio, colectados en secuencias del Paleozoico, Mesozoico y Cenozoico del país y procedentes de las regiones de Cajamarca, Lima y Pisco. Estos ejemplares presentan una significación especial como documentación base y de consulta para la asignatura de Paleobiología: Tomiodendron peruvianum (Gothan) Pfefferkorn y Alleman comb.nov. (in press); “Cyclostigma” pacifica (Steinmann); Obandotheca laminensis Erwin, Pfefferkorn y Alleman; Nothorhacopteris peruviana (Berry); Weichselia peruviana Zeiller; Brachyphylum sp. Zeiller y DICOTYLEDONEAE.

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Molinari-Novoa, Eduardo Antonio. "Review of theTrifolium amabileComplex in Peru, with the Description of a New Species". Scientifica 2016 (2016): 1–5. http://dx.doi.org/10.1155/2016/5435781.

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Here, we describeTrifolium absconditumsp. nov., a new species of theT. amabilecomplex from South America. It differs from other PeruvianTrifoliaof the complex by having smaller stipules, leaves, inflorescences, and floral pieces. A key for Peruvian species of the complex is presented, and typifications for them are made when necessary and material is available in Peruvian herbaria. Thus, the number of Peruvian species in the complex is elevated to three:T. amabile,T. absconditum, and a resurrectedT. peruvianum. Finally, it is suggested that Chile must be excluded from the distribution of this complex.

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Suinaga, Fábio Akiyoshi, Marcelo Coutinho Picanço, Márcio Dionízio Moreira, Altair Arlindo Semeão y Sérgio Tinôco Verçosa de Magalhães. "Resistência por antibiose de Lycopersicon peruvianum à traça do tomateiro". Horticultura Brasileira 22, n.º 2 (junio de 2004): 281–85. http://dx.doi.org/10.1590/s0102-05362004000200023.

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Este trabalho foi realizado em casa de vegetação na Universidade Federal de Viçosa e objetivou estudar a resistência por antibiose do acesso CNPH 101 de Lycopersicon peruvianum a traça do tomateiro Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) e as possíveis causas químicas desta resistência. Os tratamentos foram as espécies de tomateiro Lycopersicon esculentum (cvs. IPA-5 e Santa Clara: padrões de suscetibilidade) e o acesso de L. peruvianum. As características avaliadas foram: mortalidade larval, peso de pupas e proporção sexual, duração das fases larval e pupal e números de ovos/fêmea de T. absoluta. Realizou-se extração hexânica nas folhas e os extratos obtidos foram submetidos a cromatografia gasosa associada a espectrômetro de massa. O acesso CNPH 101 de L. peruvianum apresentou resistência a T. absoluta afetando a mortalidade larval e duração da fase pupal. Duas substâncias (provavelmente o 4-metil-2,6-di-tert-butilfenol e outra com tempo de retenção 18,8 min. no cromatograma) estiveram associadas ao fato de que L. esculentum é mais suscetível a T. absoluta do que L. peruvianum. Foram detectadas duas substâncias associadas a plantas da cultivar Santa Clara (provavelmente o transcarofileno) e de L. peruvianum (provavelmente o hexadecano) mais suscetíveis a T. absoluta. Foi detectada uma substância (com tempo de retenção 22,796 min. no cromatograma) associada a plantas de L. peruvianum mais resistentes a T. absoluta.

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Labate, Joanne A., Larry D. Robertson, Susan R. Strickler y Lukas A. Mueller. "Genetic structure of the four wild tomato species in the Solanum peruvianum s.l. species complex". Genome 57, n.º 3 (marzo de 2014): 169–80. http://dx.doi.org/10.1139/gen-2014-0003.

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The most diverse wild tomato species Solanum peruvianum sensu lato (s.l.) has been reclassified into four separate species: Solanum peruvianum sensu stricto (s.s.), Solanum corneliomuelleri, Solanum huaylasense, and Solanum arcanum. However, reproductive barriers among the species are incomplete and this can lead to discrepancies regarding genetic identity of germplasm. We used genotyping by sequencing (GBS) of S. peruvianum s.l., Solanum neorickii, and Solanum chmielewskii to develop tens of thousands of mapped single nucleotide polymorphisms (SNPs) to analyze genetic relationships within and among species. The data set was condensed to 14 043 SNPs with no missing data across 46 sampled plants. Origins of accessions were mapped using geographical information systems (GIS). Isolation by distance, pairwise genetic distances, and number of clusters were estimated using population genetics approaches. Isolation by distance was strongly supported, especially between interspecific pairs. Eriopersicon (S. peruvianum s.s., S. corneliomuelleri, S. huaylasense) and Arcanum (S. arcanum, S. neorickii, S. chmielewskii) species groups were genetically distinct, except for S. huaylasense which showed 50% membership proportions in each group. Solanum peruvianum and S. corneliomuelleri were not significantly differentiated from each other. Many thousands of SNP markers were identified that could potentially be used to distinguish pairs of species, including S. peruvianum versus S. corneliomuelleri, if they are verified on larger numbers of samples. Diagnostic markers will be valuable for delimiting morphologically similar and interfertile species in germplasm management. Approximately 12% of the SNPs rejected a genome-wide test of selective neutrality based on differentiation among species of S. peruvianum s.l. These are candidates for more comprehensive studies of microevolutionary processes within this species complex.

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LOURENÇÃO, ANDRÉ LUIZ, HIROSHI NAGAI, WALTER JOSÉ SIQUEIRA, JOSÉ ALFREDO USBERTI FILHO y ARLETE MARCHI TAVARES DE MELO. "SELEÇÃO DE TOMATEIROS RESISTENTES A TOSPOVÍRUS". Bragantia 56, n.º 1 (1997): 21–31. http://dx.doi.org/10.1590/s0006-87051997000100003.

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A partir de 1987/88 e durante sete anos agrícolas, avaliou-se, no Centro Experimental de Campinas do Instituto Agronômico, em condições de campo, o comportamento de progênies e cultivares de tomateiros em relação à infecção causada por tospovírus, cujos sintomas são conhecidos como "vira-cabeça do tomateiro". Do germoplasma referido como resistente a tospovírus, LA 444-1 (Lycopersicon peruvianum), PI 134417 (L. hirsutum) e TSW-10 confirmaram sua resistência, enquanto `Platense' (L. esculentum), `Rey de los Tempranos' (L. esculentum), `Leopardo' e HE-233 comportaram-se como suscetíveis. Linhagens derivadas de L. peruvianum foram comparadas com germoplasma oriundo de L. hirsutum; embora ambos os parentais, LA 444-1 e PI 134417, sejam resistentes ao vírus, as menores infecções ocorreram nas linhagens descendentes de L. peruvianum, ao passo que no outro grupo se constatou comportamento de suscetibilidade. O cultivar Stevens, desenvolvido na África do Sul, descendente de L. peruvianum, confirmou resistência a tospovírus; linhagens (grupo IAC S4) obtidas de cruzamentos entre `Stevens' e `IPA-6' exibiram resistência igual ou superior ao parental resistente, além de boas caracte-rísticas agronômicas.

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Stommel, John R. "SUGAR ACCUMULATION IN FRUIT OF CULTIVATED AND WILD SPECIES OF TOMATO". HortScience 25, n.º 9 (septiembre de 1990): 1141c—1141. http://dx.doi.org/10.21273/hortsci.25.9.1141c.

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Sugar accumulation throughout fruit development in the cultivated tomato (Lycopersicon esculentum) and a wild green-fruited species (L. peruvianum) are being examined. Results obtained using HPLC demonstrate that the fruit of L. peruvianum accessions accumulate the disaccharide, sucrose, in addition to the monosaccharides, glucose and fructose, common to L. esculentum. When detectable, sucrose in the L. esculentum cultivar FM6203 was present at very low levels throughout development. Analysis of mature fruit of L. esculentum var. cerasiforme, L. pimpinellifolium, and L. cheesmanii accessions indicate glucose and fructose as the primary storage sugars. Similar to L. peruvianum, mature fruit of the green-fruited species, L. hirsutum f. typicum and L. hirsutum f. glabratum, accumulate sucrose in addition to glucose and fructose.

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Ribeiro, Cláudia Silva da Costa y Leonardo de Britto Giordano. "Método de obtenção de híbridos interespecíficos entre Lycopersicon esculentum e L. peruvianum". Pesquisa Agropecuária Brasileira 36, n.º 5 (mayo de 2001): 793–99. http://dx.doi.org/10.1590/s0100-204x2001000500009.

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A transferência de genes da espécie silvestre Lycopersicon peruvianum para a espécie L. esculentum por processo convencional de hibridação é limitada por incompatibilidade. O objetivo deste trabalho foi desenvolver um método de obtenção de híbridos entre essas duas espécies, mediante a técnica de cultura de óvulos, tendo em vista o interesse em transferir genes presentes em acessos de L. peruvianum que conferem resistência a Septoria lycopersici. Foram utilizados os acessos CNPH 946, CNPH 947 e CNPH 948 de L. peruvianum e as cultivares Floradade e Ipa-5 de L. esculentum. Sementes híbridas de frutos com 25-68 dias após a polinização foram colocadas para germinar inicialmente em meio de cultura Murashige & Skoog (MS), e posteriormente em meio HLH. As sementes foram incubadas no escuro a 25°C. Só foram regenerados os híbridos provenientes das sementes colocadas para germinar em meio HLH. Dezesseis híbridos foram obtidos de 1.573 óvulos, sendo de 1% a taxa de regeneração de plantas híbridas. As características morfológicas dos híbridos F1 quando comparadas com os dois genitores indicaram que as plantas eram realmente resultado da hibridação entre L. esculentum e L. peruvianum.

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Gordillo, Luis F., Mikel R. Stevens, Mark A. Millard y Brad Geary. "Screening Two Lycopersicon peruvianum Collections for Resistance to Tomato spotted wilt virus". Plant Disease 92, n.º 5 (mayo de 2008): 694–704. http://dx.doi.org/10.1094/pdis-92-5-0694.

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The United States Department of Agriculture (USDA) Research Service and the Tomato Genetics Resource Center (TGRC) Lycopersicon peruvianum germplasm collections (16,335 plants from 285 accessions) were screened with the Tomato spotted wilt virus (TSWV) isolates TSWV6 from Hawaii, and Anwa-1 from Western Australia. Using TSWV6 to screen for resistance, 10,634 L. peruvianum plants from 280 accessions were screened for resistance, resulting in 168 (60%) accessions with 1,437 (14%) plants indicating resistance, with all 1,404 89S (Sw-5+/Sw-5+) and 1,456 89R (Sw-5/Sw-5) controls infected. When using Anwa-1 for screening, 864 (15%) of 5,701 L. peruvianum plants were uninfected from 106 of the 181 accessions tested, and 472 (95%) of the 495 89S and 421 (73%) of the 574 89R controls were infected. Of the 172 accessions tested with both isolates, 54 were resistant to one isolate but not the other. Additionally, more accessions from the USDA than from the TGRC collection indicated resistance. TSWV-resistant accessions were somewhat equally distributed throughout the L. peruvianum geographic range, with an observation that northern Chile and southern Peru seemed to have an unusually high portion of accession indicating resistance. The value of Sw-5 is discussed in relationship to potential additional sources of TSWV resistance.

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11

Ross, Kim. "Nutritional management of surgically induced menopause: A case report". Women's Health 17 (enero de 2021): 174550652110314. http://dx.doi.org/10.1177/17455065211031492.

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Hot flashes are a primary reason for medical visits during menopause. They can interfere with sleep, cause mood disturbances, decrease the overall quality of life, and are associated with significant health care and societal costs. This case report examines the safety and effectiveness of Lepidium peruvianum (maca) for the management of menopausal-related symptoms. A 32-year-old White female presented with hot flashes, night sweats, anxiety, and mood changes following a hysterectomy and oophorectomy. She was provided with a personalized nutrition plan, Lepidium peruvianum (maca), targeted nutrient supplementation, and lifestyle recommendations. These interventions resulted in the safe and effective resolution of hot flashes and anxiety in 2 months and significantly improved her moods and sleep. This case report demonstrated that the use of Lepidium peruvianum, in conjunction with dietary and targeted supplement modifications, appeared to be safe and resulted in the rapid improvements and resolution of symptoms associated with menopause.

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Poppinga, Simon, Tobias Haushahn, Markus Warnke, Tom Masselter y Thomas Speck. "Sporangium Exposure and Spore Release in the Peruvian Maidenhair Fern (Adiantum peruvianum, Pteridaceae)". PLOS ONE 10, n.º 10 (7 de octubre de 2015): e0138495. http://dx.doi.org/10.1371/journal.pone.0138495.

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Lech, M., K. Miczyński y A. Pindel. "Comparison of regeneration potentials in tissue cultures of primitive and cultivated tomato species (Lycopersicon sp.)". Acta Societatis Botanicorum Poloniae 65, n.º 1-2 (2014): 53–56. http://dx.doi.org/10.5586/asbp.1996.009.

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Regeneration capacities of two tomato cultivars: Potentat and Rutgers, and of three accessions of wild tomato species: Lycopersicon peruvianum PI 128650, L. peruvianum var. dentatum PI 128655 and L. glandulosum were studied using an universal medium suitable for regeneration of those plants from leaf pieces in tissue culture. Fragments of leaf blades were taken from plants raised in greenhouse conditions and placed on a modified MS medium containing 0.3 mg/l IAA and 3.0 mg/l BAP solidified with 1% agar. The explants were transferred every 4-5 weeks on fresh medium of the same composition. It was shown that all the three primitive tomato species revealed much higher multiplication coefficients than the two cultivars. Appropriate values were: 11 - for L. glandulosum, 8 - for L. peruvianum, 7 - for L. peruvianum var. dentatum, 4 - for L. esculentum cv. Potentat and 2 - cv. Rutgers. Completely regenerated plants were obtained from all the tested species, but organogenesis occurred almost two weeks earlier in wild tomatoes than in the culitivated varieties of L. esculentum.

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Maruyama, Wilson Itamar, Luciana Cláudia Toscano, Arlindo L. Boiça Júnior y José Carlos Barbosa. "Resistência de genótipos de tomateiro ao ácaro rajado". Horticultura Brasileira 20, n.º 3 (septiembre de 2002): 480–84. http://dx.doi.org/10.1590/s0102-05362002000300017.

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Avaliou-se a resistência de genótipos de tomateiro selvagens [Lycopersicon pennellii (LA 716), L. hirsutum var. glabratum (PI 126449, PI 134417), L. hirsutum (PI 127826, PI 127827), L. peruvianum (CGO 6707), L. peruvianum var. dentatum (WYR 2020, LA 111), L. peruvianum var. glandulosum (LA 1113-1, LA 1113-2)] e comerciais [(L. esculentum) Gem Pride, Santa Clara, e híbridos Bruna VFN, Carmem, Fortaleza, Débora Plus VFN] ao ácaro rajado (Tetranychus urticae). O número médio de ovos, fases imaturas (larvas, protoninfas e deutoninfas) e adultos por folíolo foi contado; o índice de preferência para oviposição (IPO) foi calculado. O delineamento experimental foi blocos ao acaso, com 6 repetições. Os genótipos LA 716, PI 126449, PI 134417, PI 127827, PI 127826 e Gem Pride apresentaram não-preferência para oviposição do ácaro rajado, sendo deterrentes quanto à classificação do IPO, enquanto os genótipos LA 111, WYR 2020, LA 1113-2 e LA1113-1 foram os mais preferidos para a oviposição e foram considerados como estimulantes pelo IPO.

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Cap, G. B., P. A. Roberts, I. J. Thomason y T. Murashige. "Embryo Culture of Lycopersicon esculentum × L. peruvianum Hybrid Genotypes Possessing Heat-stable Resistance to Meloidogyne incognita". Journal of the American Society for Horticultural Science 116, n.º 6 (noviembre de 1991): 1082–88. http://dx.doi.org/10.21273/jashs.116.6.1082.

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Genotypes of Lycopersicon peruvianum (L.) Mill. and L. peruvianum var. glandulosum (Rick), selected from accessions that possess resistance to Meloidogyne incognita [(Kofoid and White) Chitwood] at high soil temperature (30C), were used as male parents in crosses with L. esculentum (Mill.) susceptible cultivars UC82, Lukullus, Tropic, and male-sterile line ms-31, respectively. The incongruity barrier between the two plant species was overcome by embryo callus and embryo cloning techniques. Hybridity of the F, progeny obtained from each cross was confirmed by differences in leaf and flower morphology, plant growth habits, and by acid phosphatase isozyme phenotypes using polyacrylamide gel electrophoresis. In greenhouse inoculation experiments, F1 plants were highly resistant to M. incognita in soil at 25 and 30C. These results confirmed the successful transfer and expression of heat-stable resistance to M. incognita from L. peruvianum to hybrids with L. esculentum as a preliminary step to introgressing additional root-knot nematode resistance into tomato.

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Stommnel, John R. "GENETIC AND PHYSIOLOGICAL ANALYSIS OF SUCROSE ACCUMULATION IN TOMATO FRUIT". HortScience 27, n.º 6 (junio de 1992): 584b—584. http://dx.doi.org/10.21273/hortsci.27.6.584b.

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Fruit of the cultivated tomato, Lycopersicon esculentum, accumulate the reducing sugars glucose and fructose as the primary storage carbohydrates. In contrast, fruit of several wild green-fruited species store high concentrations of sucrose. Analysis of invertase, sucrose synthase (SS) and sucrose phosphate synthase (SPS) enzyme activity throughout fruit development in the sucrose accumulating species L. peruvianum, indicated low levels of invertase and SS during the period of significant sucrose accumulation. Increased SPS activity was noted during the sucrose accumulation phase but was not coincident with maximum rates of sucrose accumulation. The percent soluble solids in ripe L. peruvianum fruit was more than twice that present in L. esculentum and attributed primarily to the high level of sucrose accumulated in L. peruvianum. Analysis of fruit sugar content in F1, F2 and backcross populations derived from an initial cross between plants of sucrose and hexose accumulators suggests that recessive gene(s) are responsible for sucrose accumulation.

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Suinaga, Fábio A., Marcelo Picanço, Gulab N. Jham y Sérgio H. Brommonschenkel. "Causas químicas de resistência de Lycopersicon peruvianum (L.) a Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae)". Anais da Sociedade Entomológica do Brasil 28, n.º 2 (junio de 1999): 313–21. http://dx.doi.org/10.1590/s0301-80591999000200015.

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Esta pesquisa foi conduzida em casa de vegetação na Universidade Federal de Viçosa e objetivou estudar a resistência dos acessos CNPH 101, 374 e 402 de Lycopersicon peruvianum a Tuta absoluta e as causas químicas dessa resistência. Os tratamentos foram as espécies de tomateiro Lycopersicon esculentum (cvs. Santa e IPA-5: padrões de suscetibilidade) e os acessos de L. peruvianum. Avaliaram-se o número de ovos / folha, de minas pequenas (comprimento < 0,5 cm) e grandes (comprimento > 0,5 cm) e a percentagem de folíolos minados por T. absoluta. Realizou-se extração hexânica nas folhas, e os extratos obtidos foram submetidos a cromatografia gasosa associada a espectrômetro de massa. Nos acessos de L. peruvianum contataram-se menores taxas de oviposição, percentagens de folíolos minados, números de minas pequenas e grandes de T. absoluta do que nas cultivares IPA-5 e Santa Clara. Foram detectados 69 picos nos cromatogramas do extrato hexânico das folhas com concentração relativa > a 10(6) íons x seg. Verificou-se efeito significativo (p < 0,05) da concentração relativa na intensidade de ataque de T. absoluta somente para os picos 28, 42, 46, 55 e 58. As principais substâncias relacionadas com L. peruvianum foram: ciclobutanol; ácido hexadecanóico; ácido 9-octadecenóico e hexadecano (picos 28, 42, 46 e 55, respectivamente). Já o tetracosano (pico 58) esteve associado com L. esculentum. Todas as substâncias presentes nos extratos hexânicos estiveram associadas com o aumento da suscetibilidade dos tomateiros a T. absoluta.

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Ünyayar, S., Y. Keleş y F. Ö. Çekiç. "The antioxidative response of two tomato species with different drought tolerances as a result of drought and cadmium stress combinations". Plant, Soil and Environment 51, No. 2 (19 de noviembre de 2011): 57–64. http://dx.doi.org/10.17221/3556-pse.

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The effects of drought, cadmium (Cd) and drought-Cd combinations on antioxidant compounds, antioxidant enzymes and shoot growth were investigated for drought tolerant [Lycopersicon peruvianum (L.) Mill.] and sensitive of (Lycopersicon esculentum Mill. cv. Lukullus) tomato species. Drought-Cd combinations significantly decreased shoot growth in both species (P < 0.01), drought stress also decreased shoot growth in drought sensitive L. esculentum. Cd was accumulated higher in the roots of drought sensitive L. esculentum than drought tolerant L. peruvianum. The chlorophyll contents decreased in all stress treatments in L. esculentum but did not change in L. peruvianum. Carotenoid contents significantly increased in all stress treatments in both species (P < 0.01). Significant increases in the contents of carotenoids in both species under stress conditions seemed to be associated with a protective role against reactive oxygen species (ROS). Ascorbate (ASC) content decreased during drought stress while increased under Cd stress. Catalase (CAT) and glutathione reductase (GR) activities significantly increased under drought stress in L. peruvianum while decreased in L. esculentum (P < 0.001). Ascorbate peroxidase (APX) activity decreased under all stress treatments in both species. Drought and Cd stresses increased superoxide dismutase (SOD) activity in both species. The present data did not show a relation between drought tolerance and levels of antioxidative defence system that was induced from Cd. However, there is a clear relationship between Cd uptake and drought tolerance of plants.

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Gunanti, Gunanti, Dwi Utari Rahmiati y Viyata Pratiwi Risky. "Efek Aplikasi Balsamum Peruvianum terhadap Persembuhan Luka Kastrasi Metode Terbuka Satu dan Dua Sayatan pada Anak Babi". Acta VETERINARIA Indonesiana 9, n.º 2 (19 de agosto de 2021): 127–33. http://dx.doi.org/10.29244/avi.9.2.127-133.

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Tahapan pascaoperasi merupakan bagian penting dalam tindakan operasi. Persembuhan luka merupakan proses usaha untuk memperbaiki kerusakan yang terjadi pada kulit. Balsamum peruvianum merupakan resin dari pohon Myroxylon balsamum dengan kandungan asam sinamat yang dapat merangsang proses persembuhan luka, sekaligus memiliki kandungan benzyl benzoate yang berfungsi sebagai antiseptik alami. Penelitian ini bertujuan mengevaluasi efek aplikasi Balsamum peruvianum dalam persembuhan luka kastrasi dengan metode terbuka, satu dan dua sayatan pada anak babi. Hewan coba yang digunakan adalah anak babi yang telah dikastrasi berusia satu bulan dan terbagi menjadi dua kelompok, yaitu kastrasi satu sayatan dan dua sayatan masing-masing tiga ekor sampel. Anak babi masing-masing dibersihkan lukanya dua kali sehari selama dua minggu pascaoperasi dengan menggunakan kapas dan rivanol kemudian dioleskan Balsamum peruvianum menggunakan cotton bud. Pengamatan dilakukan secara makroskopis dan metode dinilai dengan skala 1 untuk sembuh sempurna dan 5 untuk luka basah. Data yang didapat kemudian diolah menggunakan Aplikasi SPSS V.20 dan diuji menggunakan Independent Sample T Test dengan selang kepercayaan 95 %. Hasil penelitian menunjukkan bahwa tidak ada perbedaan waktu persembuhan yang nyata antara dua kelompok. Kelompok babi satu sayatan memiliki waktu persembuhan rata-rata lebih singkat.

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20

van Ooijen, J. W., J. M. Sandbrink, M. Vrielink, R. Verkerk, P. Zabel y P. Lindhout. "An RFLP linkage map of Lycopersicon peruvianum". Theoretical and Applied Genetics 89-89, n.º 7-8 (diciembre de 1994): 1007–13. http://dx.doi.org/10.1007/bf00224531.

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21

Yu, Chang-Yeon y John Masiunas. "PLANTLET REGENERATION FROM ACIFLUORFEN-TOLERANT CELL LINES OF SOLANUM PTYCANTHUM AND LYCOPERSICON PERUVIANUM." HortScience 25, n.º 9 (septiembre de 1990): 1082b—1082. http://dx.doi.org/10.21273/hortsci.25.9.1082b.

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Friable callus of Solanum ptycanthum and L. peruvianum PI199380 clone 149 were subcultured on liquid Murashige and Skoog salts and Gamborg Vitamin medium with 2,4-D (1mg/l) until a fine suspension of cells was obtained. The suspension cultured cells were then plated on selection medium. Twenty-five acifluorfen-tolerant cell lines of Solanum ptycanthum and fourteen tolerant Lycopersicon peruvianum cell lines were obtained by a stepwise increase in concentration of acifluorfen. Acifluorfen-tolerant cell lines were transferred on to regeneration media with the herbicide. Shoot regeneration differed depending on the cell line and acifluorfen concentration, ranging from 0 to 37 plants per calli. As acifluorfen concentration increased in the regeneration media, the number of shoots and shoot height decreased. There was a wide range of variation in shoot morphology, which depended on the cell line.

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22

Piven, N. M., O. K. Makhorina, I. K. Komarnitsky, N. N. Cherep y L. R. Shlumukov. "Somatic hybridization of Lycopersicon esculentum Mill, and Lycopersicon peruvianum v. dentatum". Biopolymers and Cell 2, n.º 3 (20 de mayo de 1986): 136–40. http://dx.doi.org/10.7124/bc.0001a9.

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23

Yu, Chang-Yeon y John Masiunas. "IMPROVED PLANT REGENERATION OF SOLANUM AND LYCOPERSICON GENOTYPES FROM LONG-TERM CALLUS CULTURE." HortScience 25, n.º 9 (septiembre de 1990): 1121b—1121. http://dx.doi.org/10.21273/hortsci.25.9.1121b.

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Repeated callus sub-culture reduce the regeneration capacity in many species. Our studies determined the effect of genotype and medium on regeneration of several Solanum and Lycopersicon genotypes from long-term callus cultures. In the first study, 13 genotypes were transferred to regeneration medium, including: Murashige and Skoog plus Gamborg Vitamins (MG); Murashige and Skoog (MS); Gamborg (GM); and white (WM). The greatest shoot regeneration was on the MG medium, containing the highest levels of thiamine. Shoot differentiation was greatest with 0.2 mg/l IAA and 2 mg/l BA. No plants were regenerated on GM or WM medium. In a second study, the effect of thiamine (0 to 200 mg/l) on shoot regeneration of the L. peruvianum genotypes PI199380, PI126945, PI251301, and PI128652, along with Solanum ptycanthum, Solanum nigrum, and L. esculentum `Diego' was evaluated. Shoot regeneration of Solanum ptycanthum, Solanum nigrum, L. peruvianum PI 199380 and PI25301 was best with 20 mg/l of thiamine.

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24

Scott, J. W. y C. L. Emmons. "EFFICIENCY OF EMBRYO RESCUE FROM CROSSES BETWEEN TOMATO (LYCOPERSICON ESCULENTUM) AND TWO L. PERUVIANUM ACCESSIONS WITH HEAT-STABLE NEMATODE RESISTANCE". HortScience 27, n.º 6 (junio de 1992): 583f—583. http://dx.doi.org/10.21273/hortsci.27.6.583f.

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Ten tomato cultigens were crossed with L. peruvianum accessions PI 126443 and PI 129152. Fruit (536 total) were harvested between 15 and 65 days after anthesis (DAA). Culturable embryos were obtained from 13% of the fruit. There were 140 embryos plated, from which 36 plants were obtained (7% of fruit, 26% of embryos plated). 'Campbell 28', Fla. 7217, and Fla. 7182 were the most efficient tomato lines for producing F1 plants, there was no difference between the L. peruvianum accessions. No embryos were obtained beyond 57 DAA. No trend in embryo viability was detected between 15 and 56 DAA. Of 248 backcross fruit, 94 embryos were plated (38% of fruit) and 15 plants were obtained (6% of fruit, 16% of embryos plated). Female parents with the best percentage of plants per fruit crossed were Fla. 7217, Fla. 7215, and 'Campbell 28' with 15, 8, and 7%, respectively. No plants were obtained from 45 crosses on Fla. 7182.

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25

CAMERON, C. B. y M. PEREZ. "Spengelidae (Hemichordata: Enteropneusta) from the Eastern Pacific including a new species, Schizocardium californicum, from California". Zootaxa 3569, n.º 1 (30 de noviembre de 2012): 79. http://dx.doi.org/10.11646/zootaxa.3569.1.6.

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Twenty one enteropneusts have been described from the west coast of North America, but those reports include no Spengelidae. Here we describe two species of acorn worms in the genus Schizocardium (S. californicum and S. peruvianum) on the basis of morphology. The former represent the first spengelid worm described from North American waters. The latter is a previously described species, and here we expand on its morphological description and extend its geographic range north from Peru to California. Notes on the habit and localization of each species, as well as a dichotomous key to the genera of the family Spengelidae are provided. Based on morphology, spengelids appears to represent an intermediate between the enteropneust families Harrimaniidae and Ptychoderidae, and Schizocardium is sister taxon to the ptychoderids. The disjunct and widely distributed populations of S. peruvianum and S. brasiliense, with populations in South American and North America, but none between, could represent the relict populations of formerly wide spread species, or the two extremes of ranges.

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26

Subramanian, P., PPadma Rao, P. Sudhakar, TSheshashena Reddy y PR Reddy. "Pharmacognostic evaluation of Heliotropium peruvianum L.: A homoeopathic drug". Indian Journal of Research in Homoeopathy 7, n.º 3 (2013): 103. http://dx.doi.org/10.4103/0974-7168.119109.

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Egashira, Hiroaki, Syuku Takahashi, Hiromi Doi, Takashi Nishizawa, Alice Escalante, Tadashi Takashina y Shigeru Imanishi. "Genetic Analysis of Sucrose-Accumulating Ability in Lycopersicon peruvianum." Breeding Science 49, n.º 3 (1999): 155–59. http://dx.doi.org/10.1270/jsbbs.49.155.

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28

NAKATA, Kengo, Hiroshi TANAKA, Keiji YANO y Masamichi TAKAGI. "An Effective Transformation System for Lycopersicon peruvianum by Electroporation." Ikushugaku zasshi 42, n.º 3 (1992): 487–95. http://dx.doi.org/10.1270/jsbbs1951.42.487.

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López-Fando, A., M. P. Gómez-Serranillos, I. Iglesias, O. Lock, U. P. Upamayta y M. E. Carretero. "Lepidium peruvianum chacon restores homeostasis impaired by restraint stress". Phytotherapy Research 18, n.º 6 (junio de 2004): 471–74. http://dx.doi.org/10.1002/ptr.1455.

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30

Yaghoobi, J., I. Kaloshian, Y. Wen y V. M. Williamson. "Mapping a new nematode resistance locus in Lycopersicon peruvianum". Theoretical and Applied Genetics 91, n.º 3 (agosto de 1995): 457–64. http://dx.doi.org/10.1007/bf00222973.

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31

Satelis, Jaqueson Ferreira, Leonardo Silva Boiteux y Ailton Reis. "Resistance to Septoria lycopersici in Solanum (section Lycopersicon) species and in progenies of S. lycopersicum × S. peruvianum". Scientia Agricola 67, n.º 3 (2010): 334–41. http://dx.doi.org/10.1590/s0103-90162010000300012.

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Septoria leaf spot (Septoria lycopersici) is one of the major fungal diseases of tomatoes (Solanum lycopersicum) in tropical and subtropical regions with humid climates and/or in areas cultivated under sprinkler irrigation systems. Sources of resistance have been found in accessions of Solanum (section Lycopersicon) species. However, many of the described sources are not effective under Brazilian conditions. The objective of this work was to evaluate wild and cultivated Solanum (section Lycopersicon) germplasm to S. lycopersici isolates. A collection of 124 accessions was initially evaluated under greenhouse conditions. Ten accessions were highly resistance (HR), whereas 33 were classified as having a resistant (R) response to S. lycopersici isolates. Field evaluation was also conducted with a sub-set of accessions identified as either HR or R in the greenhouse experiment. This field evaluation confirmed greenhouse tests and indicated the presence of some potential sources of rate-reducing resistance. One highly resistant and eight resistant S. habrochaites accessions were identified as being resistant under both conditions, confirming that this wild species is one of the most promising sources of resistance to S. lycopersici. Five new sources with high levels of resistance were found in S. peruvianum accessions (PI-306811, CNPH-1036, LA-1910, LA-1984 and LA-2744). One accession derived from an interspecific cross between S. lycopersicum and S. peruvianum was also found to be highly resistant and might be useful to introgress resistance factors from this wild species into cultivated tomato germplasm. However, additional breeding efforts will be necessary to introgress into the cultivated tomato the resistance factors identified in other S. peruvianum accessions due to the presence of natural crossing barriers between the two species.

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32

Espindola, Artur, Duane F. Lima y Mayara K. Caddah. "(2740) Proposal to conserve the name Myrtus cauliflora ( Myrciaria cauliflora , Plinia cauliflora ) against Guapurium peruvianum ( P. peruviana ) ( Myrtaceae )". TAXON 69, n.º 2 (abril de 2020): 410–11. http://dx.doi.org/10.1002/tax.12226.

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Ruiz Toledo, Romario Junior, Melissa Carol Moleros Ingunza, Yelicsa Altamirano Lazo y Miguel Ãngel Pinto Salina. "Efecto antifibrotico de Lepidium peruvianum en un modelo de fibrosis pulmonar inducida con nanosilice en ratas". Revista Peruana de Medicina Integrativa 3, n.º 2 (18 de enero de 2019): 63. http://dx.doi.org/10.26722/rpmi.2018.32.83.

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Objetivo. Demostrar el efecto antifibrotico de Lepidium peruvianum (maca), ecotipo morado, en la fibrosis pulmonar inducida con nanoparticulas de silice en ratas. Materiales y metodos. Estudio experimental, descriptivo, analitico, transversal, realizado en la Facultad de Medicina de la Universidad Nacional Mayor de San Marcos, Lima, Peru. Se utilizaron ratas de la cepa Sprague Dawley, estos animales fueron divididos aleatoriamente en cinco grupos: Blanco (B), Control (C), Prednisona (P), Dosis 1 (D1) y Dosis 2 (D2). En los últimos cuatro grupos, se indujo la fibrosis pulmonar (20 mg de nanosilice/rata). Luego de 7 días se inició el tratamiento, durante 4 semanas se administró el extracto metanolico de Lepidium peruvianum ecotipo morado (D1: 150 mg/kg/d y D2: 1500 mg/kg/d) y prednisona (P: 6,5 mg/kg/d). El analisis estadistico fue realizado usando la prueba ANOVA seguida de la prueba de comparacion mUltiple Tukey-Kramer. Los estudios realizados incluyeron el analisis del lavado broncoalveolar (recuento celular y actividad de LDH) y del tejido pulmonar (concentracion de malondialdehido y evaluacion histopatologica). Resultados. El grado de fibrosis en el grupo D2 fue significativamente menor (P<0,01) al grupo C y P. La concentracion de malondialdehido fue significativamente mayor (P<0,01) en el grupo C en comparacion a los otros grupos. Ademas, la concentracion en el grupo D2 fue significativamente menor (P<0,01) que en el grupo P. La actividad de LDH fue significativamente menor (P<0,01) en D2 en comparacion a C y D1. No hubo diferencias significativas del numero de celulas del lavado broncoalveolar entre el grupo D2 y B. Conclusiones. Lepidium peruvianum posee un efecto antifibrotico en la fibrosis pulmonar inducida con nanoparticulas de silice en ratas.

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Robinson, Richard W. "Breeding Tomatoes for Attractiveness to Pollinating Insects". HortScience 30, n.º 4 (julio de 1995): 797C—797. http://dx.doi.org/10.21273/hortsci.30.4.797c.

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Bumblebees are commercially used to improve fruit set of greenhouse tomatoes, but they seldom pollinate tomatoes outdoors if not confined in a no-choice situation. Bumblebees frequently pollinated L. peruvianum and other self-incompatible (SI) Lycopersicon species, but not tomato plants, in the field at Geneva, N.Y. Bumblebees were very efficient pollinators of Sl Lycopersicon species, averaging only 5 s to pollinate one flower and fly to the next. Transfer of this attractiveness to pollinating insects to the tomato could improve fruit set of tomatoes grown in greenhouses with introduced bumblebees. It could also improve fruit set in the field, especially when conditions are poor for pollination. It has potential use for producing F1 hybrid seed, but associated problems make hybrid tomato seed production by insect pollination impractical now. Attractiveness to pollinating insects is being introgressed from L. peruvianum, L. hirsutum, and L. pennellii in the tomato breeding program at Geneva, N.Y. Several floral characteristics were found to be of importance for attracting pollinators, including the reaction to ultraviolet light. Flowers of SI species absorbed UV, whereas tomato flowers reflected UV light.

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35

Marilene, Fancelli y José Djair Vendramim. "Development of Bemisia tabaci (Gennadius,1889) biotype B on Lycopersicon spp. genotypes". Scientia Agricola 59, n.º 4 (diciembre de 2002): 665–69. http://dx.doi.org/10.1590/s0103-90162002000400007.

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Whiteflies are phytophagous insects, whose nymphs and adults suck the phloem sap, causing direct damage due to host plant weakness. In tomato (Lycopersicon spp.) crops, they are important vectors of limiting fitoviruses. The objective of this study was to determine the effects of Lycopersicon spp. genotypes on Bemisia tabaci (Gennadius, 1889) biotype B development under greenhouse conditions. The evaluated genotypes were LA462 (L. peruvianum), LA716 (L. pennellii), LA1584 (L. pimpinellifolium), LA1609 (L. peruvianum), LA1739 (L. hirsutum), P25 (L. esculentum), PI134417 (L. hirsutum f. glabratum) and Santa Clara (L. esculentum). LA716 was non-preferred for oviposition by the whitefly, which suggests an antixenotic effect. LA1584 showed an antibiotic resistance because nymphal survival was reduced and nymphal developmental time was increased. Antixenotic resistance was observed in LA1739 and PI134417, based on a reduction of oviposition. PI134417 also reduced nymphal survival, which suggests an antibiotic effect, but LA1739 was suitable for insect development. LA1609 was highly preferred for oviposition, however it reduced insect survival. P25 and Santa Clara (L. esculentum) were highly preferred for oviposition.

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36

Veremis, J. C., G. B. Cap y P. A. Roberts. "A Search for Resistance in Lycopersicon spp. to Nacobbus aberrans". Plant Disease 81, n.º 2 (febrero de 1997): 217–21. http://dx.doi.org/10.1094/pdis.1997.81.2.217.

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Accessions of Lycopersicon cheesmanii, L. chmielewskii, L. esculentum var. cerasiforme, L.hirsutum, L. parviflorum, L. peruvianum, L. pennellii, L. pimpinellifolium, and three interspecific hybrids of L. peruvianum with L. esculentum, were screened for resistance to the false root-knot nematode (Nacobbus aberrans) in greenhouse tests. Variability in nematode reproduction levels was observed within L. chmielewskii accessions LA 2695 and LA 2663 in initial tests with N. aberrans from Argentina; however, interspecific hybrids of L. esculentum cv. UC-82 × L. chmielewskii LA 2695, L. esculentum cv. UC-82 × L. chmielewskii LA 2663, and all the parent plants were susceptible in subsequent tests to the isolate of N. aberrans from Argentina and to an isolate from Mexico. The interspecific hybrids that possess the gene Mi and additional novel resistance to Meloidogyne spp. (root-knot nematodes) and all other exotic tomato accessions tested were susceptible to N. aberrans in our tests. Thus, we have been unable to identify or confirm resistance to two N. aberrans isolates in a range of Lycopersicon germ plasm accessions, including those that possess genes for resistance to root-knot nematodes.

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37

Kinsara, A., S. N. Patnaik, E. C. Cocking y J. B. Power. "Somatic Hybrid Plants of Lycopersicon esculentum Mill.and Lycopersicon peruvianum Mill." Journal of Plant Physiology 125, n.º 3-4 (octubre de 1986): 225–34. http://dx.doi.org/10.1016/s0176-1617(86)80145-6.

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WEBB, M. C. y E. G. WILLIAMS. "The Pollen Tube Pathway in the Pistil of Lycopersicon peruvianum". Annals of Botany 61, n.º 4 (abril de 1988): 415–23. http://dx.doi.org/10.1093/oxfordjournals.aob.a087573.

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Wijbrandi, J., A. M. A. Wolters y M. Koornneef. "Asymmetric somatic hybrids between Lycopersicon esculentum and irradiated Lycopersicon peruvianum". Theoretical and Applied Genetics 80, n.º 5 (noviembre de 1990): 665–72. http://dx.doi.org/10.1007/bf00224227.

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40

Jansen, C. E., E. A. M. Snel, M. J. E. Akerboom, H. J. J. Nijkamp y J. Hille. "Induction of streptomycin resistance in the wild tomato Lycopersicon peruvianum". Molecular and General Genetics MGG 220, n.º 2 (enero de 1990): 261–68. http://dx.doi.org/10.1007/bf00260492.

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Wijbrandi, J., A. Posthuma, J. M. Kok, R. Rijken, J. G. M. Vos y M. Koornneef. "Asymmetric somatic hybrids between Lycopersicon esculentum and irradiated Lycopersicon peruvianum". Theoretical and Applied Genetics 80, n.º 3 (septiembre de 1990): 305–12. http://dx.doi.org/10.1007/bf00210064.

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42

Chawla, Bindu, Robert Bernatzki y Michael Marcotrigiano. "PERICLINAL CHIMERAS COMPOSED OF LYCOPERSICON PERUVIANUM AND L. ESCULENTUM DEMONSTRATE THAT S-LOCUS ASSOCIATED PROTEINS AND SELF-INCOMPATIBILITY CAN BE UNCOUPLED". HortScience 30, n.º 2 (abril de 1995): 193b—193. http://dx.doi.org/10.21273/hortsci.30.2.193b.

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Lycopersicon peruvianum is a wild species of tomato that exhibits gametophytic self-incompatibility (S), wherein the SI response is controlled by the genotype of the pollen. Cultivated tomato (L. esculentum) is a self-compatible species. Assisted by phenotypic markers, periclinal graft chimeras between these two species have been obtained. Fruit set analysis following breeding demonstrated that the available five chimeras (PPE, PEE, PEP, EPP, and EEP) are able to accept pollen from L. peruvianum, suggesting that there is a failure of the SI response. SI response is known to be dependent on S-locus associated proteins. These proteins are present in the style, which is mainly derived from the L1 and L2 layers of meristem. RNA analysis of the style tissue using a cloned S-locus cDNA as a probe showed that, except for EEP, all chimeras expressed the S-allele. This was also confirmed by SDS-PAGE analysis of stylar proteins that were present in variable amounts depending on the periclinal combination. Thus, the breakdown of SI is not associated with the lack of expression of the S-locus. Further work is being conducted to understand the nature of this breakdown.

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43

Ling, Kai-Shu y John W. Scott. "Sources of Resistance to Pepino mosaic virus in Tomato Accessions". Plant Disease 91, n.º 6 (junio de 2007): 749–53. http://dx.doi.org/10.1094/pdis-91-6-0749.

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Pepino mosaic virus (PepMV) is an emerging disease on greenhouse tomato. This highly contagious disease is difficult to control. The best disease management strategy is likely through the use of disease resistance. A major tomato germplasm core collection was evaluated for its resistance against PepMV. These accessions included 23 Solanum lycopersicum, 8 S. pimpinellifolium, 33 S. peruvianum, 18 S. chilense, and 27 S. habrochaites. The results showed that all plants in the accessions corresponding to S. lycopersicum and S. pimpinellifolium were susceptible to PepMV-US infection. On the other hand, two accessions of S. peruvianum (LA107 and LA1305) and S. chilense (LA1971 and LA2748) appeared to have some levels of moderate resistance. However, the most promising resistance segregated in three S. habrochaites accessions (LA1731, LA2156, and LA2167). Resistant plants from these three S. habrochaites accessions were saved for selection. A secondary screening was carried out with progenies generated from the selected plants. These tests showed the segregation of broad-spectrum resistance from the selected S. habrochaites plants against PepMV, especially in LA1731. The segregated LA1731 plants were resistant to not only the U.S. type isolate but also the European type isolate.

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Aragão, Fernando A. S., Cláudia S. da C. Ribeiro, Vicente Wagner D. Casali y Leonardo de B. Giordano. "Cultivo de embriões de tomate in vitro visando a introgressão de genes de Lycopersicon peruvianum em L. esculentum". Horticultura Brasileira 20, n.º 4 (diciembre de 2002): 605–10. http://dx.doi.org/10.1590/s0102-05362002000400019.

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Estudou-se diferentes protocolos de germinação e manutenção de híbridos interespecíficos (Lycopersicon esculentum X L. peruvianum) pela melhoria das condições de cultura in vitro bem como da aclimatação das plantas germinadas. Quanto à regeneração dos embriões, três formulações de meios de cultura para resgate de embrião foram avaliadas, em combinação com distintos períodos de tempo. A recuperação de híbridos interespecíficos foi influenciada pelo meio de cultura utilizado para o plaqueamento das sementes e pelo intervalo entre a polinização artificial e o plaqueamento. O meio HLH proporcionou os melhores resultados. O intervalo entre 25 e 35 dias após a polinização foi determinado como sendo o período ideal para recuperação. Para aclimatização, foram avaliadas plantas de L. esculentum, L. peruvianum, híbridos interespecíficos (F1) e das gerações RC1 e RC2. O processo de aclimatização foi influenciado pelo tamanho das gemas utilizadas na repicagem anterior à aclimatização, pelos materiais genéticos utilizados e pelo tempo de manutencão das plântulas em tubo de ensaio. A geracão F1 apresentou a melhor capacidade de aclimatização. O período ideal para aclimatização variou entre 26 e 35 dias após a repicagem em tubo de ensaio. As aclimatizações realizadas sob condições ambientais amenas, alcançaram êxito total quanto à sobrevivência das plântulas.

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Top, Oğuz, Cantuğ Bar, Bilal Ökmen, Duygu Yüce Özer, Dane Rusçuklu, Nilüfer Tamer, Anne Frary y Sami Doğanlar. "Exploration of Three Solanum Species for Improvement of Antioxidant Traits in Tomato". HortScience 49, n.º 8 (agosto de 2014): 1003–9. http://dx.doi.org/10.21273/hortsci.49.8.1003.

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Wild tomato species have been widely used for improvement of tomato disease resistance but have not been extensively explored for health-related traits. In this work, three interspecific populations derived from backcrosses between cultivated tomato and Solanum pimpinellifolium (LA1589), S. habrochaites (LA1223), and S. peruvianum (LA2172) were analyzed for water-soluble antioxidant activity, phenolic content, vitamin C content, and basic agronomic traits including fruit weight, shape, and color. The wild species accessions significantly exceeded S. lycopersicum for all three antioxidant traits with only one exception: vitamin C content in S. habrochaites LA1223. Several populations and traits showed transgressive segregation indicating that the backcross populations contained individuals with allele combinations that allowed antioxidant activity/content to exceed that of both parents. The S. habrochaites LA1223 population provided the best starting material for improvement of water-soluble antioxidant activity and phenolics content with 20% and 15% of the population, respectively, significantly exceeding the parental values for these traits. Moreover, the S. habrochaites population contained individuals that had nearly 2-fold more water-soluble antioxidant activity and phenolic content than cultivated tomato. The S. peruvianum LA2172 population was best for improvement of vitamin C content with 3-fold variation for the trait and individuals, which had twice as much vitamin C as cultivated tomato.

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Bolarín, M. C., F. G. Fernández, V. Cruz y J. Cuartero. "Salinity Tolerance in Four Wild Tomato Species using Vegetative Yield-Salinity Response Curves". Journal of the American Society for Horticultural Science 116, n.º 2 (marzo de 1991): 286–90. http://dx.doi.org/10.21273/jashs.116.2.286.

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The salinity tolerances of 21 accessions belonging to four wild tomato species [Lycopersicon pimpinellifolium (Jusl.) Mill., L. peruvianum (Corr.) D'Arcy, L. hirsutum (L.) Mill., and L. pennellii Humb. Bonpl.) were evaluated using their vegetative yield-salinity response curves at the adult stage, determined by a piecewise-linear response model. The slope (yield decrease per unit salinity increase), salinity response threshold, maximum electrical conductivity without yield reduction (ECo), and salinity level for which yield would be zero (ECo) were determined by a nonlinear least-squares inversion method from curves based on the response of leaf and stem dry weights to substrate EC. The genotype PE-2 (L. pimpinellifolium) had the highest salt tolerance, followed by PE-45 (L. pennellii), PE-34, PE-43 (L. hirsutum), and PE-16 (L. peruvianum). The model also was tested replacing substrate salinity levels with leaf Cl- or Na+ concentrations. Concentrations of both ions for which vegetative yields were zero (Clo and Nao) were determined from the response curves. In general, the most tolerant genotypes were those with the highest Clo and Nao values, suggesting that the dominant salt-tolerance mechanism is ion accumulation, but there were cases in which salt tolerance was not related to Clo and Nao.

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Matos, Evandro S., Walter J. Siqueira, André L. Lourenção, Arlete M. T. Melo, Haiko E. Sawazaki, José Alberto C. Souza-Dias y Addolorata Colariccio. "Resistência de genótipos de tomateiro a um isolado de geminivírus do cinturão verde de Campinas, São Paulo". Fitopatologia Brasileira 28, n.º 2 (abril de 2003): 159–65. http://dx.doi.org/10.1590/s0100-41582003000200007.

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Plantas de tomateiro (Lycopersicon esculentum) apresentando sintomas de amarelecimento do limbo foliar principalmente nas nervuras, redução de crescimento e distorções foliares foram coletadas em lavouras do cinturão verde de Campinas, São Paulo, e mantidas no Centro Experimental de Campinas (IAC), para utilização em experimentos de avaliação de resistência de genótipos à virose. A partir de análises moleculares, o vírus foi identificado como Tomato yellow vein streak virus (TYVSV). Foram feitas avaliações em campo (infecção natural) e em telado (infecção natural e controlada), usando-se diversos genótipos, abrangendo cultivares, híbridos, linhagens e populações, além de espécies selvagens de tomateiro. Alguns dos genótipos e híbridos contêm o gene de resistência Ty-1. Em campo, destacou-se o híbrido 'BX 1016158' com as menores incidências de doença. Em telado (infecção natural), híbridos interespecíficos de L. esculentum x L. peruvianum, e a linhagem PI 134417 (L. hirsutum) mostraram-se os mais resistentes ao isolado. O método de avaliação precoce em telado (infecção controlada) mostrou-se adequado para discriminar genótipos resistentes ao isolado. Por meio desse método, constatou-se a resistência das linhagens 'LA 444-1' (L. peruvianum), F4(TySw5) e a série IAC 14-2, e dos híbridos 'Franco' e BX1653088 ('Densus'), os quais receberam notas próximas de um ou não apresentaram sintomas.

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Maicelo Quintana, Jorge Luis y Julio César Alegre Orihuela. "Análisis del sistema de información y conocimiento respecto a los ecosistemas de las palmeras Ceroxylon peruvianum galeano, Sanín & Mejía en la cuenca media del río Utcubamba". APORTE SANTIAGUINO 4, n.º 1 (19 de julio de 2011): 75. http://dx.doi.org/10.32911/as.2011.v4.n1.531.

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El estudio comprende la estimación de carbono retenido por la especie Ceroxylon peruvianum "pona", la formulación de ecuaciones alométricas y selección de la mayor correlación estimada a partir de variables como diámetro altura de pecho (DAP) y altura de fuste. En la estimación de carbono se utilizó 15 ejemplares de pona, distribuidos en la cuenca media del río Utcubamba, en un rango de altitud de 1500 a 2300 msnm. Se utilizó el método directo, seccionando el fuste de 1 a 2 metros; a partir de estos se cortó muestras de 5 cm de espesor, de igual forma las muestras de ramas y hojas, las muestras se secaron a 75 °C hasta peso constante, se recolectó muestras de suelo en el radio de cada planta en 3 niveles de profundidad para el análisis y determinación de la cantidad de carbono retenido. La investigación permite s'eleccionar la ecuación potencial múltiple: Biomasa Seca = 0.0080*DAPume * Altura de Fuste "6", para la estimación de la cantidad de carbono y CO2 en Ceroxylon peruvianum, en bosques naturales y mixtos y en sistemas de producción de la cuenca media del río Utcubamba, ecuación utilizada por presentar el mayor índice de correlación ? de 0,966

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Slugina, Maria A., Anna V. Shchennikova y Elena Z. Kochieva. "The expression pattern of the Pho1a genes encoding plastidic starch phosphorylase correlates with the degradation of starch during fruit ripening in green-fruited and red-fruited tomato species". Functional Plant Biology 46, n.º 12 (2019): 1146. http://dx.doi.org/10.1071/fp18317.

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Genes encoding plastidic starch phosphorylase Pho1a were identified in 10 tomato species (Solanum section Lycopersicon). Pho1a genes showed higher variability in green-fruited than in red-fruited tomato species, but had an extremely low polymorphism level compared with other carbohydrate metabolism genes and an unusually low ratio of intron to exon single nucleotide polymorphisms (SNPs). In red-fruited species, Pho1a was expressed in all analysed tissues, including fruit at different developmental stages, with the highest level in mature green fruit, which is strong sink organ importing sucrose and accumulating starch. In green-fruited species Solanum peruvianum and Solanum arcanum, the Pho1a expression level was similar in mature green and ripe fruit, whereas in Solanum chmielewskii, it was higher in ripe fruit, and in Solanum habrochaites, the dynamics of fruit-specific Pho1a expression was similar to that in red-fruited tomatoes. During fruit development, in red-fruited Solanum lycopersicum, sucrose level was low, the monosaccharide content increased; in green-fruited S. peruvianum, the sucrose concentration increased and those of monosaccharides decreased. In both species, the starch content and Pho1a expression were downregulated. The evolutionary topology based on Pho1a sequences was consistent with the current division of tomatoes into red-fruited and green-fruited species, except for S. habrochaites.

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Castro Bedriñana, Jorge, Doris Chirinos Peinado y Jorge Calderón Inga. "Calidad nutricional del rastrojo de maca (Lepidium peruvianum Chacón) en cuyes". Revista de Investigaciones Veterinarias del Perú 29, n.º 2 (31 de mayo de 2018): 410. http://dx.doi.org/10.15381/rivep.v29i2.13405.

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Con el objetivo de evaluar la calidad nutricional del rastrojo de maca (Lepidium peruvianum Chacón) proveniente de la trilla para la colección de la semilla botánica, en la provincia de Junín (4000 msnm), Perú, se determinó la composición química proximal, los coeficientes de digestibilidad, el contenido de nutrientes digestibles totales, el consumo voluntario y la ingesta proteica del rastrojo picado de maca. Se utilizaron 4 cuyes machos de 4 meses de edad de la raza Wanka dispuestos en jaulas metabólicas que permiten colectar heces libres de orina. Los contenidos de humedad (H), materia seca (MS), proteína total (PT), extracto etéreo (EE), fibra cruda (FC), extracto libre de nitrógeno (ELN) y ceniza del rastrojo de maca fueron 11.30, 88.70, 6.97, 3.58, 36.35, 44.53 y 8.58%, respectivamente; los coeficientes de digestibilidad de la MS, PT, EE, FC, ELN, materia orgánica (MO) y nutrientes digestibles totales (NDT) del rastrojo de la maca fueron 74.79, 68.00, 75.27, 71.78, 77.08, 74.21 y 71.21%, respectivamente. Los consumos promedio de rastrojo fresco de maca por cuy/día y como porcentaje del peso vivo fueron 21.46 g y 3.25%, respectivamente; mientras que el consumo de MS como porcentaje del peso vivo y en gramos por kilogramo de peso metabólico fue de 2.89% y 146.11 g, respectivamente. La ingesta promedio diaria de proteína por kilogramo de cuy vivo fue de 2 g.

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