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Journal articles on the topic "Aloysia. Verbenaceae Verbenaceae Plants"
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Armada, Juan, and Alfredo Barra. "On Aloysia Palau (Verbenaceae)." TAXON 41, no. 1 (February 1992): 88–90. http://dx.doi.org/10.2307/1222497.
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Stathas, G. J., E. D. Kartsonas, and A. I. Darras. "Record of Phenacoccus peruvianus Granara de Willing and Phenacoccus madeirensis (Hemiptera: Pseudococcidae) on new host ornamental plants in Greece." Hellenic Plant Protection Journal 8, no. 1 (January 1, 2015): 12–14. http://dx.doi.org/10.1515/hppj-2015-0002.
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Summary Two invasive mealybug species, Phenacoccus peruvianus Granara de Willink and Phenacoccus madeirensis Green (Hemiptera: Pseudococcidae), have been recorded on new species of ornamental plants in diff erent regions of Greece. Phenacoccus peruvianus was recorded in Athens on Cestrum nocturnum L. (Solanaceae) in September 2013. Phenacoccus madeirensis was found in Kalamata (Peloponnese) on Aloysia citriodora Palau (Verbenaceae) in May 2014 and on Osteospermum jucundum (Phillips) (Asteraceae) in July 2014. This is the first record of O. jucundum as host plant of P. madeirensis
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CARDOSO, PEDRO HENRIQUE, VANESSA IMACULADA DOS REIS VALÉRIO, LUIZ MENINI NETO, and FÁTIMA REGINA GONÇALVES SALIMENA. "Verbenaceae in Espírito Santo, Brazil: richness, patterns of geographic distribution and conservation." Phytotaxa 484, no. 1 (February 15, 2021): 1–43. http://dx.doi.org/10.11646/phytotaxa.484.1.1.
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Verbenaceae is represented in Brazil by 15 genera and ca. 290 species, with most of its richness in the Cerrado and Atlantic Forest domains. The state of Espírito Santo has an area of 46,184.1 km2, wholly embedded in the Atlantic Forest. Nonetheless, due to the intense environmental degradation in the state, only 10.5% of its original vegetation remains. The present study is part of the “Flora do estado do Espírito Santo” project and aims to provide a taxonomic treatment to Verbenaceae in the state, as well as to analyze its distribution patterns, together with preliminary conservation assessments for each species. It is based on morphological analysis of herbaria collections, field expeditions, and literature compilation. Distribution maps were made for each species, while the preliminary conservation assessments followed the criteria proposed by the IUCN. Verbenaceae is represented in the state of Espírito Santo by 31 species arranged in 11 genera: Aloysia (2 spp.), Bouchea (1 sp.). Casselia (1 sp.), Citharexylum (1 sp.), Glandularia (1 sp.), Lantana (10 spp.), Lippia (4 spp.), Petrea (1 sp.), Priva (2 spp.), Stachytarpheta (6 spp.) and Verbena (2 spp.). Eight species occurring in Espírito Santo are threatened with extinction. Three new records are verified, including species of the genus Lantana. The dense rainforest, which covers most of the state’s territory, presents the most significant number of species (20 spp.), followed by pioneer vegetations (12 spp.), seasonal semideciduous forests (11 spp.), inselbergs (8 spp.), and ecological refuges (2 spp.). The main richness centers for Verbenaceae in the state of Espírito Santo are the municipalities of Linhares, Santa Teresa, Vitória, Vila Velha, and Guarapari in this order. In contrast, the family is noticeably little represented in the northern region of the state, as well as near its borders, where the forest remnants are highly fragmented and scattered. The current results contribute to the taxonomic and biogeographic knowledge of Verbenaceae, to the creation of conservation strategies for threatened species in the State of sspírito Santo, and reinforce the need of fieldwork in several areas of the state.
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Wood, John R. I. "Aloysia axillaris (Verbenaceae), a new species, with notes on the genus in Bolivia." Kew Bulletin 64, no. 3 (September 2009): 513–23. http://dx.doi.org/10.1007/s12225-009-9131-5.
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Portmann, Erika, Marcela M. López Nigro, Claudia G. Reides, Susana Llesuy, Rafael A. Ricco, Marcelo L. Wagner, Alberto A. Gurni, and Marta A. Carballo. "Aqueous Extracts of Lippia turbinata and Aloysia citriodora (Verbenaceae): Assessment of Antioxidant Capacity and DNA damage." International Journal of Toxicology 31, no. 2 (March 2012): 192–202. http://dx.doi.org/10.1177/1091581812436726.
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The aim of the present work was to make a contribution to the knowledge of aqueous extracts of Lippia turbinata and Aloysia citriodora (Verbenaceae; infusion and decoction) in relation with the establishment of its antioxidant activity and lack of DNA damage, for its potential use in therapeutics. The cytogenotoxic profile was evaluated through genotoxic biomarkers such as mitotic index, cellular proliferation kinetics, sister chromatid exchanges, single-cell gel electrophoresis assay, and micronucleus test in human peripheral blood lymphocyte cultures. No statistical differences were found ( P > .05) between control and exposed cultures, even between both aqueous extracts. The total antioxidant capacity was shown to be higher in the decoction than in the infusion and both aqueous extracts protected against protein carbonylation and lipid peroxidation, the decoction being more efficient than the infusion ( P < .005). These results suggest the safe use of these medicinal plants as chemoecologic agents in therapeutics.
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Burdyn, L., C. Luna, J. Tarracó, P. Sansberro, N. Dudit, A. Conzález, and L. Mrocinski. "Direct shoot regeneration from leaf and internode explants of Aloysia polystachya [GRIS.] mold. (Verbenaceae)." In Vitro Cellular & Developmental Biology - Plant 42, no. 3 (May 2006): 235–39. http://dx.doi.org/10.1079/ivp2006751.
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Werdin González, Jorge O., María M. Gutiérrez, Ana P. Murray, and Adriana A. Ferrero. "Biological Activity of Essential Oils from Aloysia polystachya and Aloysia citriodora (Verbenaceae) against the Soybean Pest Nezara viridula (Hemiptera: Pentatomidae)." Natural Product Communications 5, no. 2 (February 2010): 1934578X1000500. http://dx.doi.org/10.1177/1934578x1000500227.
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The objective of the current study was to determine the chemical constituents, ovicidal activity, fumigant, contact toxicity and repellent effects of essential oils isolated by hydrodistillation from Aloysia polystachya and A. citriodora against eggs and second instar nymphs of Nezara viridula. The major components were carvone (83.5%) for A. polystachya, and citronellal (51.3%) and sabinene (22.9%) for A. citriodora. The ovicidal activity of both oils was tested by topical application at different concentrations ranging from 1.2 to 12.5 μg/egg; all concentrations had a toxic effect. Data probit analysis showed that the LC50 value for A. polystachya was 2.3 μg/egg and for A. citriodora 1.9 μg/egg. The fumigant activity was evaluated in an enclosed chamber. The toxicity increased with concentration from 11 to 176 μg/mL air, and with exposure times from 1 to 48 h. The LC50 values for A. polystachya and A. citriodora were 29.9 and 13.5 μg/mL air 24 h after treatment, respectively. To evaluate contact activity a glass-vial bioassay was used. The toxicity increased with concentration from 2.8 to 45 μg/cm2 and with exposure time from 1 to 48 h. The LC50 for A. polystachya was 3.4 μg/cm2 and for A. citriodora 8.1 μg/cm2. The repellency bioassay demonstrated that both oils were active at the highest concentration (2.6 and 5.3 μg/mL air) and neutral at 1.3 μg/mL air. These results show that the essential oils from Aloysia polystachya and A. citriodora could be applicable to the management of populations of Nezara viridula.
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Benzi, Verónica S., Ana P. Murray, and Adriana A. Ferrero. "Insecticidal and Insect-repellent Activities of Essential Oils from Verbenaceae and Anacardiaceae against Rhizopertha Dominica." Natural Product Communications 4, no. 9 (September 2009): 1934578X0900400. http://dx.doi.org/10.1177/1934578x0900400926.
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Essential oils extracted from leaves of Aloysia polystachya and A. citriodora (Verbenaceae) and from leaves and fruits of Schinus molle var. areira (Anacardiaceae) were tested for their repellent and toxic activities against adults of Rhizopertha dominica (Coleoptera: Bostrichidae). Topical application and filter paper assays were employed for contact toxicity studies; filter paper impregnation was also used for fumigant and repellent assays. In topical tests A. polystachya was as effective as S. molle leaves. In the case of repellent assays, A. citriodora was the most effective oil based on the class scale. A.polystachya was the most toxic plant on contact toxicity by filter paper assay (LC50 26.6 mg/cm2). Fumigant toxicity was only evaluated with fruits and leaves of S. molle, and no significant differences were found between them. Published data are included to compare the fumigant toxicity of S. molle with that of A. citridora and A. polystachya.
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Ebenhoch, Ruben, Karen Saenger, Fiorella Crosa, Yenny Gonzalez, and Rosa Luisa Degen de Arrua. "Plantas utilizadas en la medicina popular paraguaya para tratar afecciones relacionadas al estrés." Revista de la Sociedad Científica del Paraguay 26, no. 1 (June 9, 2021): 82–90. http://dx.doi.org/10.32480/rscp.2021.26.1.82.
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La medicina tradicional ha mantenido su popularidad en todo el mundo. En Paraguay, la medicina tradicional es ampliamente practicada por sus habitantes para tratar las diversas afecciones que se les presenten, empleando principalmente plantas medicinales. Este trabajo tuvo como objetivo identificar las especies vegetales que se utilizan en la medicina popular paraguaya para tratar afecciones relacionadas al estrés. El estudio fue observacional; consistió en consultar a vendedores de plantas medicinales sobre aquellas que recomiendan para contrarrestar el estrés y sus síntomas, de 3 puestos de venta de “yuyos” de cada mercado situado en las ciudades de Limpio, San Lorenzo y Villa Elisa, Departamento Central. Se realizaron tres recolecciones entre julio y noviembre del 2019. Las plantas adquiridas fueron identificadas, fotografiadas, secadas, etiquetadas y depositadas en el Herbario FCQ. Como resultado se identificaron 16 especies, de las cuales 8 especies fueron recomendadas (en estado fresco) en el mercado de Limpio, 10 especies (6 especies en estado fresco y 4 especies en polvo grueso en estado seco dispuesto en bolsita) en Villa Elisa y 10 especies (en estado fresco) en San Lorenzo. Las especies citadas en los tres mercados son “menta'i”, Mentha x piperita; “kapi'i kat?”, Kyllinga vaginata y “cedrón Paraguay”, Aloysia citriodora. La familia más representada fue Lamiaceae, con tres especies, seguida de Verbenaceae con dos especies.
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Pinto, José Eduardo BP, Júlio César W. Cardoso, Evaristo M. de Castro, Suzan Kelly V. Bertolucci, Lucas A. de Melo, and Sara Dousseau. "Aspectos morfofisiológicos e conteúdo de óleo essencial de plantas de alfazema-do-Brasil em função de níveis de sombreamento." Horticultura Brasileira 25, no. 2 (June 2007): 210–14. http://dx.doi.org/10.1590/s0102-05362007000200016.
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Mudanças nas características anatômicas e fisiológicas e na produção de óleo essencial de plantas medicinais sob influência de diferentes condições de radiação têm sido evidenciadas. O objetivo deste trabalho foi caracterizar essas variações em plantas de alfazema-do-Brasil (Aloysia gratissima [Gilles & Hook.] Tronc.) Verbenaceae, crescidas a pleno sol e com 40 e 80% de redução da radiação solar incidente. Para a análise de crescimento, utilizou-se delineamento inteiramente casualizado (DIC), com três níveis de luzes e cinco repetições de três plantas. As análises do teor de clorofila e da anatomia foliar foram realizadas em DIC com três repetições de três plantas e, a análise do óleo essencial, em DIC, com três repetições de cinco plantas, para cada nível de radiação. O nível de 40% de sombreamento foi o melhor no aspecto de crescimento. A matéria seca dos diversos órgãos da planta não diferiu entre os tratamentos com 40% de sombreamento (massa seca total 201 g) e a pleno sol (148 g), ambos significativamente superiores ao tratamento com 80% de sombreamento (68,6 g). Plantas cultivadas a pleno sol apresentaram folhas com epiderme adaxial, parênquima paliçádico, esponjoso e limbo significativamente mais espesso que nos demais tratamentos, enquanto plantas crescidas a 80% de sombreamento apresentaram folhas com a epiderme abaxial significativamente mais espessa. Não houve efeito significativo do sombreamento sobre o teor do óleo essencial, que variou de 2,1 a 2,2%, embora o rendimento de óleo essencial tenha sido significativamente superior nas plantas crescidas em plena luz (0,73 g planta-1) e a 40% de sombreamento (0,88), em relação àquelas crescidas a 80% de sombreamento (0,26). Houve aumento significativo da concentração de clorofila a e b em função da diminuição da intensidade de radiação (20,7 mg de clorofila total por g de massa fresca a pleno sol; e 23,7 e 32,0 com 40 e 80% de sombreamento respectivamente) e uma redução significativa na razão a/b (3,13 a pleno sol e 2,94 e 2,69, a 40 e 80% de sombreamento, respectivamente).
Dissertations / Theses on the topic "Aloysia. Verbenaceae Verbenaceae Plants"
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Siedo, Stephen Joseph. "Systematics of Aloysia (Verbenaceae) /." Thesis, View online, 2006. http://www.lib.utexas.edu/etd/d/2006/siedod21650/siedod21650.pdf#page=3.
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Thesis (Ph. D.)--University of Texas at Austin, 2006.Includes bibliographical references (p. 299-308). Also available via the World Wide Web: http://www.lib.utexas.edu/etd/d/2006/siedod21650/siedod21650.pdf#page=3.
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Brandão, Aline Dias. "Citogenetica comparativa dos generos Lippia, Lantana e Aloysia (Verbenaceae, Lamiales)." [s.n.], 2003. http://repositorio.unicamp.br/jspui/handle/REPOSIP/317965.
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Orientadores : Shirlei Maria Recco Pimentel, Lyderson Facio VicciniDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia
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Resumo: Os gêneros Lippia, Aloysia e Lantana são morfologicamente muito semelhantes e apresentam diversos problemas taxonômicos para delimitação de suas espécies e dos próprios gêneros. No presente traballio? as espécies Lippia alba, Aloysia virgata e Lantana camara, da flora brasileira, foram caracterizadas através da análise de células mitóticas e meióticas. Diversas fases do ciclo celular meiótico foram identificadas e caracterizadas. Observou-se o comportamento nonnal dos cromossomos e a formação de 15, 18 e 22 bivalentes durante o diplóteno e diacinese, para as espécies L. alba, A. vir gata e L. camara, respectivamente. A análise das células mitóticas permitiu um estudo detalhado do cariótipo das três espécies. L. alba apresentou um número diplóide de 2n = 30 cromossomos, metacêntricos e submetacêntricos, dois pares com constrição secundária, cerca de 52 % de heterocromatina especialmente rica em A T, três pares com as regiões organizadoras do nucléolo (NORs) na região telomérica dos cromossomos, e um par de cromos somos portando sítios de rDNA 58. Através dessas análises foi possível diferenciar L. alba de L. geminata, espécies sinonimizadas morfologicamente. A. virgata apresentou 2n = 36 cromossomos, todos metacêntricos, dois pares portando constrição secundária e dois pares com NORs, cerca de 64 % de heterocromatina especialmente rica em ATe um par de cromossomo com sítios de rDNA 58. L. camara apresentou 2n = 44 cromossomos metacêntricos, quatro pares com constrição secundária e três pares de cromossomos carregando as NORs, cerca de 68 % de heterocromatina especialmente rica em CG e dois pares de cromossomos com sítios de rDNA 58. A técnica de hibridação in situ fluorescente (FI8H) mostrou-se um importante marcador citogenético, permitindo sugerir uma origem diplóide para as espécies L. alba eA. virgata (com 2n = 2x = 30 e 36, respectivamente). A espécie L. camara possivelmente tenha uma origem poliplóide (2n = 4x = 44) apesar da presença constante de bivalentes durante a meiose. Caracterizou-se também a morfologia do núcleo interfásico em células mitóticas para as três espécies, L. alba apresentou núcleo areticulado e L. camara e A. virgata apresentaram núcleos semi-reticulados. Através da análise dos cariótipos foi possível diferenciar as três espécies, corroborando diversos estudos morfológicos, que colocam esses gêneros como entidades taxonômicas distintas. No entanto, sugere-se que outras espécies sejam analisadas afim de verificar se esses parâmetros citogenéticos poderão ser utilizados como marcadores gerais para cada gênero
Abstract: Lippia, Aloysia and Lantana genera are morphologically very similar and present several taxonomic problems at the establishment of their species and their own genera. In this work., the Lippia alba, Aloysia virgata and Lantana camara from Brazilian flora were characterized through the analyses of mitotic and meiotic cells. Severa! phases of the cellular cycle were identified and characterized. It was observed the nonnal behaviour of the chromosomes and the formation of 15, 18 and 22 bivalents during the diplotene and dialcinesis stages for the L. aIba, A. vir gata and L. camara, respectively. The analysis of mitotic cells allowed a detailed study of the three species kartotype. L. alba presented a diploid number of 2n = 30 metacentrics and submetacentrics chromosomes, two pairs with secundary constriction, about 52% of especially AT-rich heterochromatin, three pairs with nucleolar organizer regions (NORs) at the telomeric chromosome region and one chromosome pair with rDNA 5S sites. Through these analysis, it was possible to differ L. alba from L. geminata, synonymous species at morphologicallevel. A. vir gata presented 2n = 36 metacentric chromosomes, two pairs with secundary constriction, about 64% of especially AT -rich heterochromatin, two pairs with NORs and one pair with rDNA 5S sites. L. camara presented 2n = 44 metacentric chromosomes, four pairs with secundary constriction, about 68% of especially CG-rich heterochromatin, three pairs with NORs and two chromosome pairs with rDNA 5S. The fluorescent in situ hibridization (FISH) technique has show to be na important cytogenetic marker, allowing the suggestion of a diploid origin for L. alba andA. virgata species (with 2n = 2x = 30 and 36 chromosomes), respectively. L. camara specie possibly has a polyploid origin (2n = 4x = 44 chromosomes), besides the constant presence of bivalents during meiosis. It was also characterized intherfasic nucleus morphology in mitotic cells for three species, in which L. alba presented areticulate nucleus, while A. virgata and L. camara presented semireticulate nucleus. Through karyotype analysis, it was possible to differ the three species, cOIToborating several morphological studies, which place these genera as distinct taxonomic entities. However, it is suggested the analysis of other species in order to verity if these cytogenetic parameters could be used as general markers for each genus
Mestrado
Biologia Celular
Mestre em Biologia Celular e Estrutural
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O'Leary, Nataly, Patricia Lu-Irving, Pablo Moroni, and Stephen Siedo. "TAXONOMIC REVISION OF ALOYSIA (VERBENACEAE, LANTANEAE) IN SOUTH AMERICA." MISSOURI BOTANICAL GARDEN, 2016. http://hdl.handle.net/10150/621440.
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Aloysia Palau is the third largest genus of tribe Lantaneae, after Lippia L. and Lantana L., in the Verbenaceae. Recent molecular phylogenetic studies have circumscribed genus Aloysia as 31 species, with the transfer of most species of Acantholippia Griseb. and the inclusion of the monotypic Xeroaloysia Tronc., as well as the exclusion of several North American Aloysia species that nest within a Lippia Lantana Glade. Newly circumscribed Aloysia are found mostly in South America, where the genus is represented by 28 species and six varieties. Only four Aloysia species are found in North America, A. coalcomana Siedo, A. macrostachya (Ton.) Moldenke, A. wrightii A. Heller, and A. gratissima (Gullies & Hook.) Tronc. var. gratissima, this last being the only taxon found in both North and South America. A taxonomic revision of the genus Aloysia for South America is provided with detailed morphological descriptions, as well as keys for taxonomic identification, illustrations or indication of iconography, and distribution and herbarium specimen lists. The genus Xeroaloysia Tronc. is here considered a synonym of Aloysia, and nine new taxonomic synonyms are here established. Lectotypification is designated for Verbena L. sect. Aloysioides Walp., and neotypification is designated for V. salviifolia Hook. & Am.
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Morbiolo, Sergio Rodrigues. "Morfometria geometrica e modelagem matematica em Lantana camara L. (Verbenaceae)." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/315043.
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Orientador: George John ShepherdDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia
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Resumo: A taxonomia de Lantana camara tem sido alvo de discussão de estudiosos em todo o mundo. A variabilidade morfológica, ecológica e química da espécie é extremamente grande. Alguns autores consideram que L. camara seja um complexo de espécie ao invés de um táxon monotípico, algumas vezes descrito como composto por até 150 táxons diferentes. Neste trabalho, a variabilidade de L. camara é colocada a prova através de dois métodos: a morfometria geométrica e a modelagem matemática. Os métodos morfométricos são utilizados para analisar a variabilidade morfológica do corpo vegetativo dos indivíduos da espécie no Brasil, país que faz parte da região original de distribuição da espécie, a América tropical. A análise dos dados é feita por métodos multivariados a fim de verificar se existe uma unidade taxonômica nas amostras brasileiras da espécie ou não. É verificado que não existe qualquer ponto confiável em que se possa reconhecer táxons específicos ou subespecíficos em todo o território; apesar da grande discrepância entre os extremos, as medidas formam um contínuo. No segundo capítulo, um algoritmo genético (GARP) é utilizado para traçar um mapa de distribuição potencial da espécie sobre o mundo, baseado em pontos de ocorrência da espécie em áreas nativas da América tropical. Verifica-se uma grande área potencial de distribuição no Novo Mundo e em outros continentes; porém, não houve previsão de ocorrência potencial na Austrália e na África do Sul. Estes dois países estão entre os que mais investem em programas de erradicação da espécie, com populações muito bem estabelecidas em áreas naturais e cultivadas. Como o algoritmo não previu possibilidade de ocupação desses países por L. camara, infere-se, então, que as linhagens ocorrentes nesses países sejam relativamente distantes taxonomicamente da espécie típica, podendo ser oriundas de hibridização e manipulação horticultural. Aparentemente, é necessária uma revisão da espécie em nível mundial
Abstract: The taxonomy of Lantana camara has been the target of discussion by taxonomists all over the world. The morphological, ecological and chemical plasticity observed is very extensive. Some autors consider that L. camara is a species complex instead of a monotypic taxon, composed of up to 150 different taxa. In this sudy, the variability of L. camara is studied using two methods: geometric morphology and mathmatical modelling. Morphological methods are used to analyze the morphological variability of the vegetative parts of brazilian populations. Brazil is within the native distribution for the species, which occurs over a large part of the Neotropics. The data analysis is made using multivariate methods to verify if there is any obvious morphological discontinuity within brazilian samples which would allow specific or insfraspecific taxa to be recognized. It does not appear to be possible to define reliable subdivisions within this taxon; in spite of the huge discrepancy among the more extreme samples, the measures are continuous. In the second chapter, a genetic algorithm (GARP) is used to draw a potential distribution map of the species over the world, based on occurrence points of Lantana camara in areas of the Neotropics where it is native. In spite of having an extremely widespread distribution in the Americas and other continents, no potencial occurrence is predicted for Australia and South Africa, two of the countries with the most active erradication programs for this species. It is inferred that the variants found in these countries may be taxonomically distant from the typical species, possibly resulting from horticultural hybridization and manipulation. A comprehensive review of the species at world level is necessary
Mestrado
Biologia Vegetal
Mestre em Biologia Vegetal
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Thomas, Eluíza. "Caracterização química, atividade citotóxica e genotóxica do óleo essencial de espécies de Aloysia Paláu (Verbenaceae) do Rio Grande do Sul." reponame:Repositório Institucional da UCS, 2015. https://repositorio.ucs.br/handle/11338/1785.
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O Brasil é um dos países com maior biodiversidade mundial, porém, poucas espécies vegetais tiveram suas propriedades avaliadas. Os óleos essenciais são compostos voláteis produzidos pelas plantas que contribuem para a sua adaptação ao meio ambiente. Estudos que ampliem o conhecimento sobre o potencial tóxico de plantas medicinais são extremamente relevantes, permitindo que se avalie a segurança do seu uso. Os óleos essenciais da parte aérea de cinco espécies de Aloysia nativas no Rio Grande do Sul e uma cultivada foram obtidos por hidrodestilação em aparelho do tipo Clevenger e a composição química foi determinada por cromatografia gasosa acoplada ao espectrômetro de massas. As espécies que apresentaram 1.8-cineol como composto majoritário foram Aloysia dusenii (16.2%), A. citrodora (32.8%) e A. lycioides coletada em Guaiba (49.5%) e São Marcos (17.6%). A espécie A. polygalifolia e A. virgata tiveram maiores proporções de germacreno-D (11.2% e 12%, respectivamente) e A. chamaedryfolia apresentou espatulenol (15.6%). A espécie A. lycioides coletada em Rosário do Sul teve β-felandreno (23.7%) como o composto principal. Para as espécies A. citrodora, A. lycioides e A. dusenii também se avaliou a toxicidade dos seus óleos essenciais através do teste de letalidade frente a Artemia salina. Para as mesmas espécies, mas nas soluções 1%, 10% e óleo puro (v/v) também se testou os efeitos dos óleos essenciais sobre a germinação e o desenvolvimento inicial de Allium cepa (cebola). No bioensaio de A. salina observouse 100% de letalidade nas concentrações 1000 μg/mL e 500 μg/mL para as três espécies avaliadas. Nas demais concentrações avaliadas o grau de letalidade foi diretamente proporcional à concentração dos mesmos. O LC50 para A. citrodora foi de 55.96 μg/mL, para A. lycioides 48.12 μg/mL e A. dusenii o LC50 foi de 48.98 μg/mL. As espécies possuem composição química distinta o que resulta em respostas citotóxicas diversas. Os valores encontrados no LC50 para os óleos testados são considerados extremamente tóxicos. Os óleos voláteis de A. citrodora, A. lycioides e A. dusenii também apresentaram efeito inibitório sobre o tempo médio de germinação e sobre o crescimento inicial de A. cepa. Ainda, observou-se efeito inibitório significativo desses óleos essenciais sobre a atividade mitótica e metafásica na cebola. Os voláteis também induziram a ocorrência de anormalidades cromossômicas, como cromossomos não-orientados na metáfase, aderências, c-mitoses, micronúcleos e brotos nucleares. O óleo essencial de A. citrodora demonstrou ser o mais tóxico entre as espécies avaliadas. O presente estudo sugere que os compostos majoritários e minoritários das espécies de Aloysia têm ação sinérgica resultando nos efeitos observados, tanto para a atividade citotóxica como genotóxica. Esse trabalho contribuiu significativamente para ampliar os conhecimentos sobre a diversidade e composição química dos voláteis das espécies de Aloysia do RS e também para o entendimento do modo de ação dos produtos naturais com potencial alelopático e a relação ecológica entre as espécies, além de reportar sobre a toxicidade do óleo essencial dessas espécies que são muito utilizadas pela medicina popular.Submitted by Ana Guimarães Pereira (agpereir@ucs.br) on 2017-03-07T14:03:33Z No. of bitstreams: 1 Dissertacao Eluíza Thomas.pdf: 2451474 bytes, checksum: bb0c2710663f50ea10d880daa23289a5 (MD5)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior.
Brazil is one of the countries with the highest global biodiversity, but few plant species had their properties evaluated. Essential oils are volatile compounds produced by plants that contribute to their adaptation to the environment. Studies that advances knowledge on the toxic potential of medicinal plants are extremely relevant, allowing you to assess the safety of their use. Essential oils of five species of native Aloysia in Rio Grande do Sul and a cultivated were obtained by hydrodistillation in a Clevenger type apparatus and the chemical composition was determined by gas chromatography coupled to mass spectrometer. The species showing 1.8-cineole as major compound were Aloysia dusenii (16.2%), A. citrodora (32.8%) and A. lycioides collected in Guaiba (49.5%) and São Marcos (17.6 %). The species A. virgata and A. polygalifolia had higher proportions of germacrene-D (11.2% and 12%, respectively) and A. chamaedryfolia spathulenol (15.6%). The species A. lycioides collected in Rosário do Sul had β-phellandrene (23.7%) as the main compound. For A. citrodora, A. lycioides and A. dusenii also evaluated the cytotoxicity of their essential oils through the lethality test front of Artemia salina. For the same species, but the solutions 1%, 10% and pure oil (v / v) also tested the effects of volatiles on the germination and initial growth of Allium cepa (onion). In bioassay A. salina there was 100% lethality in concentrations 1000 μg/mL and 500 μg/mL for the three species evaluated. Others concentrations tested the degree of mortality was directly proportional to the oil concentration. The LC50 for A. citrodora was 55.96 μg/mL, while for A. lycioides 48.12 μg/mL and A. dusenii the LC50 was 48.98 μg/mL. Species have different chemical composition resulting in various cytotoxic responses. The values found in the LC50 for the tested oils are considered highly toxic. The volatile oils of A. citrodora, A. lycioides and A. dusenii also showed inhibitory effect on the average germination time and on the initial growth of A. cepa. There was a significant inhibitory effect of essential oils in the mitotic index and index metaphase onion. Volatile also induced the occurrence of chromosomal abnormalities, such as non-oriented chromosomes in metaphase, sticky, c-mitosis, micronuclei and buds at interphase. The essential oil of A. citrodora proved to be the most toxic among the species assessed. The present study suggests that the majority compounds and minority species of Aloysia have synergistic action resulting in the observed effects, both for the cytotoxic activity as genotoxic. This work contributed significantly to increase knowledge of the diversity and composition essential oils of species of Aloysia and also to the mode of action of the understanding of natural products with allelopathic potential and the ecological relationship between the species, and report on the toxicity of the volatile oil of these species that are widely used in folk medicine.
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Benovit, Simone Cristina. "COMPOSIÇÃO E ATIVIDADE SEDATIVA E ANESTÉSICA DO ÓLEO ESSENCIAL DE Aloysia gratissima (GILLIES & HOOK.) TRONCOSO (VERBENACEAE) EM JUNDIÁS (Rhamdia quelen)." Universidade Federal de Santa Maria, 2012. http://repositorio.ufsm.br/handle/1/9001.
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Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorThis work was designed to isolate the active compounds responsible for the central activity detected for the essential oil of Aloysia gratissima (EOA) in silver catfish (Rhamdia quelen). The AChE (acetylcholiesterase) activity under the influence of EOA was also investigated. Silver catfish were submitted to anesthesia bath with EOA (90, 300, 450 or 900 mg L-1), their fractions and isolated compounds to determine time of anesthetic induction and recovery. Eugenol (50 mg L-1) was used as positive control. EOA was effective as anesthetic at concentrations of 300 to 900 mg L-1. However, silver catfish presented involuntary muscle contractions during induction and recovery. AChE activity was not inhibited by EOA. The bio-guided fractionation of EOA furnished E-(-)-pinocamphone, (-)-caryophyllene oxide, (-)- guaiol and (+)-spathulenol, which were identified by mass spectrometry (MS), 1H- and 13CNMR. E-(-)-pinocamphone caused the same side effects observed to the EOA. (-)- Caryophyllene oxide, (-)-guaiol and (+)-spathulenol showed only sedative effects at concentrations proportional to those of the constituents in EOA. (-)-Caryophyllene oxide was also sedative in higher concentration (40 mg L-1) than present in EOA while (+)-spathulenol (51.2 mg L-1) promoted deep anesthesia without side effects. EOA showed anesthetic properties, however, should be used with caution in silver catfish due to observed side effects. A higher concentration of (+)-spathulenol, and lower or absent amounts of E-(-)- pinocamphone could contribute to improve the activity of the EO of A. gratissima. (+)- Spathulenol showed potent sedative and anesthetic activities in silver catfish, and could be considered as a promising anesthetic compound.
Este trabalho foi desenvolvido visando isolar os compostos ativos responsáveis pela atividade anestésica detectada para o óleo essencial de Aloysia gratissima (OEA) em jundiás (Rhamdia quelen). A atividade da acetilcolinesterase (AChE) sob a influência do OEA também foi investigada. Jundiás foram submetidos a banho de anestesia com OEA (90, 300, 450 ou 900 mg L-1), suas frações e compostos isolados, a fim de determinar o tempo de indução e recuperação anestésica. Eugenol (50 mg L-1) foi utilizado como controle positivo. OEA foi eficaz como anestésico nas concentrações de 300 a 900 mg L-1. No entanto, os jundiás apresentaram contrações musculares involuntárias durante a indução e recuperação. Atividade da AChE não foi alterada pelo OEA. O fracionamento bio-guiado do OEA forneceu E-(-)-pinocafona, (-)-óxido de cariofileno, (-)-guaiol e (+)-espatulenol, os quais foram identificados por espectrometria de massas (EM), 1H e 13C-RMN. E-(-)-pinocafona causou os mesmos efeitos adversos observados para o OEA. (-)-Óxido de cariofileno, (-)-guaiol e (+)- espatulenol apresentaram apenas efeitos sedativos em concentrações proporcionais às dos constituintes no OEA. (-)-Óxido de cariofileno também foi sedativo em maior concentração (40 mg L-1) que a presente no OEA, enquanto (+)-espatulenol (51,2 mg L-1) promoveu anestesia profunda, sem efeitos adversos. OEA apresentou propriedades anestésicas, no entanto, deve ser utilizado com cuidado em jundiás devido aos efeitos adversos observados. Uma maior concentração de (+)-espatulenol, e menor quantidade ou ausência de E-(-)- pinocafona poderiam contribuir para melhorar a atividade do OE de A. gratissima. (+)- Espatulenol apresentou potente atividade sedativa e anestésica em jundiás, e pode ser considerado um composto anestésico promissor.
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Mpati, Kwena Winnie. "Response of fever tea (Lippia Javanica) to fertigation frequency, growth medium and propagation method." Pretoria : [s.n.], 2005. http://upetd.up.ac.za/thesis/available/etd-02202007-113732.
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Bispo, Luma dos Passos. "Propaga??o, cultivo e produ??o de ?leo essencial de esp?cies de Lippia (Verbenaceae) ocorrentes no Semi?rido Baiano." Universidade Estadual de Feira de Santana, 2015. http://localhost:8080/tede/handle/tede/398.
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Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES
Funda??o de Amparo ? Pesquisa do Estado da Bahia - FAPEB
The genus Lippia (Verbenaceae) is characterized by having species with medicinal and aromatic properties, its economic potential aims to the production of essential oils with important biological and pharmacological activities. Even with all known diversity and potential, few species are the target of agronomic studies. Considering the propagation as the first step in the domestication of a species and the influence of external factors on essential oil production, this study aimed to evaluate the effect of cutting type and auxin concentrations in the vegetative propagation of the species L. insignis, L. lasiocalycina and L. thymoides, as well as different types of fertilization and harvest season in production, and content and chemical composition of the essential oil. In propagation tests two types of cuttings were used (apical and middle) and five IBA concentrations (0, 250, 500, 750 and 1000 mg L-1). In cultivation three forms of fertilization were tested (control, manure and manure + NPK 10:10:10) and two harvest seasons (210 and 360 days after planting). The essential oils are extracted from dry leaves by the hydrodistillation method by Clevenger apparatus, and chemical composition determined by gas chromatography with flame ionization detector (GC / FID) coupled to mass spectrometer (GC / MS). It was concluded that apical cuttings are the most suitable for the propagation of L. insignis and both apical and middle cuttings for L. thymoides and L. lasiocalycina; treatment with IBA is not necessary in the propagation by cuttings of these species; chemical fertilizers (NPK) associated with cattle manure was the best treatment in growth and biomass production of the species L. lasiocalycina and L. thymoides, while for L. insignis to the control treatment was the best; pruning, followed by the second growing season (regrowth) is recommended in the cultivation of the studied species, aiming at the production of essential oil; ?-myrcene, limonene and E-ocimenone are the major components of L. insignis; ?-myrcene and E-ocimenone the major components of L. lasiocalycina and E-caryophyllene and caryophyllene oxide the major components of L. thymoides; fertilization and harvest season promote quantitative variations in the chemical composition of essential oils; the species L. insignis and L. thymoides are the most promising for essential oil production in the conditions of Feira de Santana, Bahia, Brazil.
O g?nero Lippia (Verbenaceae) ? caracterizado por apresentar esp?cies com propriedades medicinais e arom?ticas, sendo seu potencial econ?mico voltado para a produ??o de ?leos essenciais com importantes atividades biol?gicas e farmacol?gicas. Mesmo com toda diversidade e potencial conhecidos, poucas esp?cies est?o sendo alvo de estudos agron?micos. Considerando a propaga??o como o primeiro passo na domestica??o de uma esp?cie e a influ?ncia dos fatores externos na produ??o de ?leo essencial, o presente trabalho teve como objetivo avaliar o efeito do tipo de estaca e concentra??es de auxina na propaga??o vegetativa das esp?cies L. insignis, L. lasiocalycina e L. thymoides, bem como de diferentes tipos de aduba??o e ?pocas de colheita na produ??o, teor e composi??o qu?mica do ?leo essencial. Nos testes de propaga??o foram utilizados dois tipos de estacas (apical e mediana) e cinco concentra??es de AIB (0, 250, 500, 750 e 1000 mg L-1). No cultivo foram testadas tr?s formas de aduba??o (testemunha, esterco bovino e esterco + NPK 10:10:10) e duas ?pocas de colheita (210 e 360 dias ap?s o plantio). Os ?leos essenciais foram extra?dos de folhas secas pelo m?todo de hidrodestila??o por aparelho de Clevenger e a composi??o qu?mica determinada por cromatografia gasosa com detector de ioniza??o em chama (CG/DIC) acoplado a espectr?metro de massas (CG/EM). Foi poss?vel concluir que estacas apicais s?o as mais indicadas na propaga??o de L. insignis e tanto as estacas apicais quanto medianas para L. thymoides e L. lasiocalycina; o tratamento com AIB n?o ? necess?rio na propaga??o por estaquia dessas esp?cies; a aduba??o mineral (NPK) associado a esterco bovino foi o melhor tratamento no crescimento e produ??o de biomassa das esp?cies L. lasiocalycina e L. thymoides, j? para L. insignis o tratamento testemunha foi o melhor; a poda, seguida da segunda ?poca de cultivo (rebrota) ? recomend?vel no cultivo das esp?cies estudadas, visando ? produ??o de ?leo essencial; ?-mirceno, limoneno e E-ocimenona s?o os componentes majorit?rios de L. insignis; ?-mirceno e E-ocimenona os componentes majorit?rios de L. lasiocalycina e E-cariofileno e ?xido de cariofileno os componentes majorit?rios de L. thymoides; a aduba??o e a ?poca de colheita promovem varia??es quantitativas na composi??o qu?mica dos ?leos essenciais; as esp?cies L. insignis e L. thymoides s?o as mais promissoras na produ??o de ?leo essencial nas condi??es de Feira de Santana, Bahia, Brasil.
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Heshula, Unathi-Nkosi Lelethu Peter. "Induced plant responses of different Lantana camara L. (Verbenaceae) varieties to herbivory by Falconia intermedia (distant) (Hemiptera: Miridae)." Thesis, Rhodes University, 2010. http://hdl.handle.net/10962/d1015368.
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A highly variable invasive shrub, Lantana camara L. (Verbenaceae), has been notoriously difficult to control thus far despite a well established biological control programme in South Africa. A promising leaf-feeding biological control agent, Falconia intermedia (Distant) (Hemiptera: Miridae), released to control this invasive plant eventually crashed at three out of five sites in the Eastern Cape Province. In the Mpumalanga Province, after initially colonising and building up high numbers on the L. camara stands the agent populations crashed. Several reasons for these population crashes have been suggested, but induced plant defences have not been investigated. Although plants face the challenge of herbivory by various organisms while remaining immobile, some plants may possess the ability to induce physical and/or chemical defensive responses following feeding and thus prevent further plant tissue damage and loss. Laboratory trials were conducted to determine the existence, nature and effect of physical and chemical feeding-induced responses of L. camara on the performance of the leaf-feeding biological control agent, F. intermedia. Lantana camara plants used in the study were obtained from five localities in the Eastern Cape Province, South Africa, while the insect culture was established from field populations. Plants from all varieties on which F. intermedia was released significantly increased the toughness of their leaves compared to control treatment plants. In addition, plants from three localities: Lyndhurst Farm, East London and Port Alfred, significantly increased trichome density after prolonged feeding by F. intermedia. On the three varieties showing increases in these two factors (i.e. leaf toughness and trichome density), oviposition, survival and feeding damage by the mirid agent was significantly lower on previously damaged plants. A significant negative correlation between trichome density and population numbers was found (R²= 0.52, p < 0.0003), suggesting that an increase in trichome density strongly contributes to a reduction in F. intermedia's growth. The growth and reproduction of the resistant plants was not significantly impacted by F. intermedia feeding. The defensive responses were found to be plant systemic and rapidly induced as they were elicited and expressed throughout the plant in both damaged and undamaged leaves within five weeks after insect release. Leaf toughness and trichome density were not significantly increased after feeding on plants from Whitney Farm and Heather Glen Farm. On the contrary, mirid individuals performed significantly better on plants from Whitney Farm and Heather Glen Farm than on plants of other varieties, indicating their susceptibility and suitability to the agent and the lack of induced resistance against the agent. Plants from all localities besides East London showed some level of tolerance and overcompensated for feeding damage by increasing plant growth and reproductive factors on plants fed upon. This was however only significant in two variables of the more susceptible localities, Whitney Farm and Heather Glen Farm. This increase in plant fitness did however indicate an induced defence response by these plants to feeding, a response designed to lessen the effects of agent feeding. Headspace volatile analysis was used to investigate any volatile chemical responses by L. camara due to F. intermedia feeding at two of the five localities chosen: East London and Whitney Farm. There was no significant difference in headspace volatiles emitted by leaves of plants from the East London insect infested and control treatment plants. On the Whitney Farm damaged plants however there was a 2.5 fold increase in the emission intensity of one of the three main compounds, later identified as Beta-caryophyllene. Three major chemical constituents which were found to be common to leaf volatiles of the two varieties were identified through gas chromatography-mass spectrometry (GC-MS) from the damaged and undamaged leaves of these two varieties. The methods used in collecting leaf volatiles were shown to be significant in the strength of chromatogram peaks. Using general authentication methods and purified standards, one of these was identified as the sesquiterpene, Beta-caryophyllene (C₁₅H₂₄). This compound is one of the major constituents found in isolations of L. camara varieties worldwide. This is the first such work done on a variety of L. camara in South Africa, and hopefully the beginning of more in-depth studies of the volatile organic chemicals from the numerous naturalised varieties of L. camara. It is suggested that the sum of these responses may play a role bigger than is currently understood in this plant-insect relationship. It is also argued that feeding induced plant defences may play an important role in attempts to control alien plants using insect agents.
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Barros, Luiz Marivando. "Constituintes químicos e propriedades bioativas de Lantana montevidensis (spreng.) briq. e Lantana camara L. (verbenaceae): evidências para o uso farmacológico." Universidade Federal de Santa Maria, 2016. http://repositorio.ufsm.br/handle/1/4499.
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Humans have been using medicinal plants for centuries as preventive or curative agents. In
Brazil, the use of plants in the treatment of diseases is influenced by Indigenous, African and
European cultures. Among these plants are Lantana camara and L. montevidensis
commonly known as camará-de-cheiro and chumbinho , respectively. They are used in the
North-eastern part of Brazil as tonic sudorific and febrifuge agent. They are also used
against, coughs, bronchitis, rheumatism, asthma, ulcer and microbial infections. Considering
that there is limited therapy against Leishmaniasis and Trypanosomiasis, due to drugs
resistance, the knowledge of the pharmacology of plants extracts can constitute a prerequisite
for the development of alternative drugs against these parasitic diseases. In this
context, the essential oil extracted by hydrodistillation of L. camara leaf was tested against
Leishmania braziliensis and Trypanosoma cruzi. Although both plants are used for the same
purpose, there is limited information regarding the potential toxicity and antioxidant activity of
L. montevidensis. Thus, we aimed to investigate the genotoxicity and cytotoxicity of ethanolic
(EtOH) and aqueous extracts from the leaves of L. montevidensis in human leukocytes, as
well as its possible interaction with membranes from human erythrocytes in vitro. The
antioxidant activity of both extracts was also investigated. The results demonstrated that the
essential oil composition of L. camara analyzed by gas chromatography mass spectrometry
(GC/MS) showed a large amount of (E)-caryophyllene (23.75%), biciclogermacrene
(15.80%), sesquiterpene (11.73%), terpinolene (6.1%), and sabinene (5.92%). The essential
oil of L. camara inhibited T. cruzi and L. braziliensis with IC50 of 201.94 μg/mL and 72.31
μg/mL, respectively. L. camara essential oil was toxic to NCTC929 fibroblasts at 500 μg/mL
(IC50 = 301.42 μg/mL). These results corroborate each other and can be explained at least in
part, by the presence of some chemical constituents in the oil. The results suggest that L.
camara essential oil can be an important source of therapeutic agents for the development of
alternative drugs against parasitic diseases. HPLC analysis of EtOH and aqueous extracts of
L. montevidensis showed chlorogenic acid and quercetin as main components in EtOH
extract, whereas, caffeic and chlorogenic acids were the major phenolic acids in the aqueous
extract. It was observed that treatment of human leukocytes with EtOH and aqueous extracts
of L. montevidensis (1-480 μg/mL) did not affect the osmotic fragility of human erythrocytes
and DNA damage index, but, promoted cytotoxicity at higher concentrations (240-480
μg/mL). Regarding the antioxidant activity, the extracts scavenged DPPH radical and
prevented Fe2+-induced lipid peroxidation in rat brain and liver homogenates, and this action
was likely not attributed to iron (II) chelation. These results justify at least in part the use of
this plant in folk medicine and suggests that caution should be made regarding its dosage or
frequency use. All together, it is hoped that these results would contribute significantly to the
knowledge about the phytoconstituents and biological activity of these species. This finding
could be of immense importance for the region by obtaining new natural medicines from
biodiversity and consequent improvement in quality of Brazilian life s.Acredita-se que a utilização de plantas medicinais como terapia curativa e preventiva seja tão antiga quanto o próprio homem. No Brasil, a utilização de plantas no tratamento de doenças apresentam influências da cultura indígena, africana e européia. Algumas dessas plantas, como o camará-de-cheiro (Lantana camara) e o chumbinho (Lantana montevidensis), são utilizadas no Nordeste como agentes tônicos, sudoríferos e febrífugos, contra tosses, bronquites, reumatismo, asma, úlcera e infecções microbianas. Considerando a não existência de tratamento eficiente contra leishmaniose e tripanossomíase devido à resistência às drogas usadas, o pouco conhecimento sobre a toxicidade de plantas para uso medicinal, este estudo pode contribuir para o desenvolvimento de terapias alternativas no tratamento dessas doenças parasitárias. Neste contexto, o óleo essencial extraído por hidrodestilação das folhas de L. camara foi testada contra a Leishmania braziliensis e Trypanosoma cruzi. Adicionalmente, apesar do fato que as duas plantas são utilizadas para as mesmas finalidades, pouco é conhecido sobre as atividades biológicas da L. montevidensis, em particular, a respeito a sua toxicidade e seu potencial antioxidante. Desta forma, outro objetivo desta tese era investigar a genotoxicidade e citotoxicidade de extratos etanólicos (EtOH) e aquosos das folhas de L. montevidensis em leucócitos humanos, bem como a sua possível interação com membranas de eritrócitos humanos in vitro. A atividade antioxidante de ambos os extratos também foi investigado. Os resultados demonstraram que a composição do óleo essencial de L. camara analisado por cromatografia gasosa por espectrometria de massa (GC/MS) revelou a presença de (E)-cariofileno (23,75%), biciclogermacrene (15,80%), germacreno D (11,73%), terpinoleno (6,1%), e sabineno (5,92%). O óleo essencial de L. camara inibiu T. cruzi e L. braziliensis com IC50 de 201,94 μg/mL e 72,31 μg/mL, respectivamente. O óleo essencial de L. camara foi tóxico para os fibroblastos NCTC929 em 500 μg/mL (IC50 = 301,42 μg/mL). Esses resultados corroboram entre si e, pelo menos em parte, explicado pela presença dos constituintes presente no óleo essencial. Tomados em conjunto, os nossos resultados sugerem que o óleo essencial de L. camara pode ser uma importante fonte de agentes terapêuticos para o desenvolvimento de medicamentos alternativos contra doenças parasitárias. A análise de HPLC-DAD dos extratos EtOH e extratos aquosos de L. montevidensis identificou ácido clorogênico e quercetina como os principais componentes para EtOH, enquanto os ácidos caféicos e clorogênicos foram os principais ácidos fenólicos no extrato aquoso. Nos ensaios de citotoxicidade, de fragilidade osmótica de eritrócitos humanos e viabilidade celular em ensaio cometa, os extratos EtOH e extratos aquosos de L. montevidensis (1-480 μg/mL) não demonstraram efeitos toxicos e não afetaram o índice de danos no DNA, porém, promoveram citotoxicidade nas maiores concentrações (240-480 μg/mL). Para a atividade antioxidante, os extratos foram capazes de sequestrar o radical DPPH e inibir a peroxidação lipídica induzida pelo Fe2+ (10 μM) em homogenados de cérebro e fígado de rato e, esta ação parece não ser atribuída a quelação de ferro (II). Estes resultados justificam pelo menos em parte o uso popular desta planta na medicinal tradicional e sugerem que cuidado deve ser tomado quanto a sua dosagem ou frequencia de uso. Contudo, espera-se que estes resultados possam contribuir significativamente com o conhecimento fitoquímico e atividade biológica destas espécies. Isto poderá ser de extrema importância para a região na obtenção de novos fármacos naturais, e consequentemente melhoria da qualidade de vida dos brasileiros.
Books on the topic "Aloysia. Verbenaceae Verbenaceae Plants"
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Grubov, V. I. Plants of Central Asia - Plant Collection from China and Mongolia, Vol. 5: Verbenaceae-Scrophulariaceae. Taylor & Francis Group, 2002.
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Grubov, V. I. Verbenaceae - Scrophulariaceae (Plants of Central Asia Series Volume 5 Plant Collections from China & Mongolia). Science Publishers, 2002.
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Grubov, V. I. Plants of Central Asia - Plant Collection from China and Mongolia, Vol. 5: Verbenaceae-Scrophulariaceae. Taylor & Francis Group, 2002.
Find full textBook chapters on the topic "Aloysia. Verbenaceae Verbenaceae Plants"
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Atkins, S. "Verbenaceae." In Flowering Plants · Dicotyledons, 449–68. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-642-18617-2_25.
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Schweingruber, Fritz Hans, Miroslav Dvorský, Annett Börner, and Jiří Doležal. "Verbenaceae." In Atlas of Stem Anatomy of Arctic and Alpine Plants Around the Globe, 347–48. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-53976-4_47.
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Akbar, Shahid. "Verbena officinalis L. (Verbenaceae)." In Handbook of 200 Medicinal Plants, 1887–93. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-16807-0_192.
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Paniagua-Zambrana, Narel Y., Rainer W. Bussmann, Javier Echeverría, and Carolina Romero. "Aloysia deserticola (Phil.) Lu-Irving & O’Leary Aloysia triphylla Royle Verbenaceae." In Ethnobotany of Mountain Regions, 183–89. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-28933-1_18.
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Paniagua-Zambrana, Narel Y., Rainer W. Bussmann, Javier Echeverría, and Carolina Romero. "Aloysia deserticola (Phil.) Lu-Irving & O’Leary Aloysia triphylla Royle Verbenaceae." In Ethnobotany of Mountain Regions, 1–7. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-77093-2_18-2.
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"LIPPIA (Verbenaceae)." In Directory Of Plants Containing Secondary Metabolites, 724. CRC Press, 1991. http://dx.doi.org/10.1201/b12561-277.
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"NEWCASTELIA (Verbenaceae)." In Directory Of Plants Containing Secondary Metabolites, 826–28. CRC Press, 1991. http://dx.doi.org/10.1201/b12561-327.
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"Aloysia." In Flora vascular de la República Argentina 14: Dicotyledoneae-Verbenaceae, 9–23. Instituto de Botánica Darwinion, 2012. http://dx.doi.org/10.2307/j.ctt16t8zqf.6.
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"Verbenaceae – teak family." In Flowering Plants in West Africa, 252–57. Cambridge University Press, 1988. http://dx.doi.org/10.1017/cbo9780511551505.031.
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"Verbenaceae J.St.-Hil." In Toxic Plants of North America, 1198–208. Oxford, UK: Wiley-Blackwell, 2012. http://dx.doi.org/10.1002/9781118413425.ch73.
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