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Journal articles on the topic 'Var. pendula'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

НИКОЛАЕВА, Н. Н., та Л. Л. НОВИЦКАЯ. "СРАВНИТЕЛЬНАЯ МОРФОЛОГИЯ ВЕГЕТАТИВНЫХ ПОЧЕК АУКСИБЛАСТОВ BETULA PENDULA VAR. PENDULA И B. PENDULA VAR. CARELICA, "БОТАНИЧЕСКИЙ ЖУРНАЛ"". Ботанический журнал, № 2 (2014): 187–93. http://dx.doi.org/10.1134/s1234567814020049.

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Приведены результаты осенних и весенних почек, сформированных на ростовых побегах 30-летних деревьев Betula pendula var. pendula и B. pendula var. carelica. Показано интенсивное развитие внутрипочечных структур в период весеннего пробуждения дерева. Выявлено более массовое участие почек B. pendula var. carelica в заложении зачатков новых листьев, что, очевидно, обусловлено их лучшим обеспечением сахарами, поступающими в почки с ксилемным соком.

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2

Jadwiszczak, Katarzyna Anna, Lidia Vetchinnikova, Agnieszka Bona, Łukasz Tyburski, Tatiana Kuznetsova, and Valery Isidorov. "Analyses of molecular markers and leaf morphology of two rare birches, Betula obscura and B. pendula var. carelica." Annals of Forest Research 63, no. 2 (2020): 121–37. http://dx.doi.org/10.15287/afr.2020.1973.

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Trees and shrubs belonging to the Betula L. genus seem to represent one of the most confused interspecific relationships, and hybridization is considered to be one of the main factors responsible for the substantial genetic and morphological variation of birches. In the present investigation, the internal transcribed spacer ITS1 and ITS2 regions of nuclear ribosomal DNA, nuclear alcohol dehydrogenase (ADH) gene sequences and amplified fragment length polymorphisms (AFLPs) as well as the Atkinson discriminant function (ADF) of leaf morphology were used to verify hypotheses concerning the origin

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3

САЗОНОВА, Т. А., С. В. ПОЗДНЯКОВА та В. Б. ПРИДАЧА. "ОСОБЕННОСТИ ВОДНОГО РЕЖИМА BETULA PENDULA (BETULACEAE) С НОРМАЛЬНОЙ И АНОМАЛЬНОЙ ДРЕВЕСИНОЙ СТВОЛА В ОНТОГЕНЕЗЕ, "БОТАНИЧЕСКИЙ ЖУРНАЛ"". Ботанический журнал, № 11 (2012): 1435–47. http://dx.doi.org/10.1134/s1234567812110067.

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Проведено исследование параметров водного режима березы повислой (Betula pendula var. pendula) и карельской березы (Betula pendula var. carelica) при нормальном и аномальном развитии проводящих тканей ствола в естественных условиях произрастания и при экспериментальных воздействиях. Установлено сходство суточных и вегетационных изменений показателей водообмена двух форм березы. Выявлена разная чувствительность показателей к внутривидовым особенностям водного режима растений березы. Показано увеличение степени различий водного дефицита и насыщающего содержания воды в листе березы повислой и кар

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4

Stepanova, N. Yu, O. V. Epanchintseva, and I. V. Belyaeva. "Salix acutifolia f. pendula (Salicaceae) — a new form." Novitates Systematicae Plantarum Vascularium, no. 50 (2019): 41–46. http://dx.doi.org/10.31111/novitates/2019.50.41.

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A new form, Salix acutifolia f. pendula I. V. Belyaeva, N. Y. Stepanova et O. V. Epanch., is described and its distribution is given. Existing confusion between the names, S. acutifolia ‘Duschanbensis’, S. acutifolia ‘Pendula’, S. acutifolia ‘Moscow Cascade’, S. acutifolia var. duschanbensis and S. acutifolia [unranked] pendula is clarified.

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Vnukova, Natalya Ivanovna. "The effect of short-term cold exposure on the change in the concentration of free proline in various birch species <i>in vitro</i>." Samara Journal of Science 12, no. 1 (2023): 38–42. http://dx.doi.org/10.55355/snv2023121106.

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In natural conditions of growth, forest woody plants constantly face negative environmental factors. Environmentally unfavorable impacts certainly affect the physiological and biochemical processes occurring in plants and lead to the activation of their own protective mechanisms. In recent years, methods of biotechnology (cell and tissue selection) have been increasingly used in the study of adaptive capabilities, as well as the degree of tolerance of plants to abiotic stress factors. In our work, we evaluated the specifics of the reaction of Betula pendula Roth, Betula pendula Roth var. carel

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6

Новицкая, Людмила Людвиговна, Наталья Алексеевна Галибина, Ксения Михайловна Никерова, Lyudmila Novitskaya, Nataliya Galibina, and Kseniya Nikerova. "SUGAR TRANSPORT AND STORAGE IN THE PHLOEM OF BETULA PENDULA ROTH VAR. PENDULA AND VAR. CARELICA." Proceedings of the Karelian Research Centre of the Russian Academy of Sciences, no. 11 (December 16, 2015): 35. http://dx.doi.org/10.17076/eb216.

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7

Tarieiev, Andrii, Igor Olshanskyi, Oliver Gailing, and Konstantin V. Krutovsky. "Taxonomy of dark- and white-barked birches related to Betula pendula and B. pubescens (Betulaceae) in Ukraine based on both morphological traits and DNA markers." Botanical Journal of the Linnean Society 191, no. 1 (2019): 142–54. http://dx.doi.org/10.1093/botlinnean/boz031.

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Abstract Distribution, taxonomy, nomenclature and molecular genetic data are presented for two closely related pairs of birch taxa: (1) dark-barked Betula pubescens var. sibakademica (Baran.) Kuzeneva (basionym B. sibakademica Baranov) and white-barked B. pubescens var. pubescens, and (2) dark-barked B. kotulae Zaverucha = B. pendula var. obscura (Kotula ex Fiek) Olšavská (basionym B. obscura Kotula ex Fiek, heterotypic synonym B. kotulae) and white-barked B. pendula, respectively. Using published data and sequences obtained in this study, it was found that, although these pairs can be disting

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8

Mallia, Madhusmita, Chinnamadasamy Kalidass, and Pratap Panda. "Physalis angulata Linn. var. pendula (Rydb.) Waterf. (Solanaceae): A new record for Odisha, India." Indian Journal of Forestry 43, no. 1 (2021): 43–45. http://dx.doi.org/10.54207/bsmps1000-2021-d08qzj.

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Physalis angulata L. var. pendula (Rydb.) Waterf. is reported for the first time for the flora of Odisha. A detailed description, nomenclature, phenology and ecology along with photos are provided for its easy identification.

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9

Ветчинникова, Л. В., та А. Ф. Титов. "Современное состояние ресурсов Betula pendula var. carelica (Betulaceae)". Растительные ресурсы 56, № 1 (2020): 16–33. http://dx.doi.org/10.31857/s0033994620010082.

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Никерова, Ксения Михайловна, Наталья Алексеевна Галибина, Юлия Леонидовна Мощенская, et al. "CATALASE ACTIVITY IN LEAVES OF SILVER BIRCH SEDLINGS OF DIFFERENT FORMS (BETULA PENDULA ROTH): VAR. PENDULA AND VAR. CARELICA (MERCKLIN)." Proceedings of the Karelian Research Centre of the Russian Academy of Sciences, no. 11 (November 21, 2016): 68. http://dx.doi.org/10.17076/eb460.

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11

Matveeva, Tatyana V., Оlga S. Mashkina, Yuriy N. Isakov, and Ludmila A. Lutova. "Molecular passportization of clones of karelian birch using PCRwith semi-specific primers." Ecological genetics 6, no. 3 (2008): 18–23. http://dx.doi.org/10.17816/ecogen6318-23.

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Using 4 clones of Karelian birch (Betula pendula Roth var caretica Merckl.) from the collection of the karelian birch of the laboratory of genetics of Research Institute of Forest Genetics and Breeding, Voronezh, one normal tree of Betula pendula Roth, and one tree of B. pubescens Ehrh., collected from the nature, we have analyzed the possibility of application of PCR with semi-specific primers for molecular typing. We found primers with high percentage of polymorphic markers. These primers could be recommended for molecular typing of birch.

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12

BRAMLEY, G. L. C., A. WEBER, Q. C. B. CRONK, and M. H. BOKHARI. "THE GENUS CYRTANDRA (GESNERIACEAE) IN PENINSULAR MALAYSIA AND SINGAPORE." Edinburgh Journal of Botany 60, no. 3 (2003): 331–60. http://dx.doi.org/10.1017/s0960428603000283.

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Nine species of Cyrtandra (Gesneriaceae) are recognized in Peninsular Malaysia. Three (C. cupulata, C. pendula and C. wallichii) are common and occur more or less throughout the area; C. pendula is also recorded from Singapore. Four (C. dispar, C. gimlettei, C. patula and C. suffruticosa) have more restricted distributions, and two (C. lanceolata and C. stonei) are local endemics. Three species and one variety originally described by Ridley are here reduced to synonymy: C. barbata (=C. cupulata), C. falcata (=C. suffruticosa) and C. rotundifolia (=C. pendula), and C. cupulata var. minor (=C. c

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13

Dantas, Murilo Melo, and Marcos José da Silva. "O gênero Senna Mill. (Leguminosae, Caesalpinioideae, Cassieae) no Parque Estadual da Serra Dourada, GO, Brasil." Hoehnea 40, no. 1 (2013): 99–113. http://dx.doi.org/10.1590/s2236-89062013000100005.

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É apresentado o estudo taxonômico do gênero Senna para o Parque Estadual da Serra Dourada, GO, como parte do projeto Diversidade de Leguminosae do Cerrado do Brasil Central. Foram reconhecidos 10 táxons: Senna alata, S. corifolia var. caesia, S. georgica, S. multijuga subsp. multijuga, S. obtusifolia, S. occidentalis, S. pendula var. glabrata, S. pilifera, S. rugosa e S. silvestris subsp. bifaria. São apresentadas descrições, chave de identificação, ilustrações, distribuição geográfica e comentários taxonômicos dos táxons.

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14

Wu, Tung-Ho, Yung-Yi Cheng, Chao-Jung Chen, et al. "Three New Clerodane Diterpenes from Polyalthia longifolia var. pendula." Molecules 19, no. 2 (2014): 2049–60. http://dx.doi.org/10.3390/molecules19022049.

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15

Pariha, M., R. K. Dubey, P. K. Malhotra, G. S. Sidhu, and G. S. Cheema. "In vitro clonal propagation of Polyalthia longifolia var. Pendula." Agricultural Research Journal 53, no. 4 (2016): 524. http://dx.doi.org/10.5958/2395-146x.2016.00104.6.

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16

Морозова, И. В., Н. П. Чернобровкина, М. К. Ильинова, В. П. Пчёлкин та В. Д. Цыдендамбаев. "Содержание и состав жирных кислот суммарных липидов почек Betula pubescens, B. pendula, B. pendula var. carelica". Физиология растений 66, № 2 (2019): 146–50. http://dx.doi.org/10.1134/s001533031901010x.

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17

Alves, Fábio de Matos, and Ângela Lúcia B. Sartori. "Caesalpinioideae (Leguminosae) de um remanescente de Chaco em Porto Murtinho, Mato Grosso do Sul, Brasil." Rodriguésia 60, no. 3 (2009): 531–50. http://dx.doi.org/10.1590/2175-7860200960305.

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RESUMO Leguminosae apresenta-se como uma das famílias mais representativas do Chaco brasileiro, com destaque para Caesalpinioideae, segunda subfamília em número de espécies. Ainda assim, existem poucos levantamentos para essa região. Este estudo consiste no levantamento florístico de Caesalpinioideae em um remanescente de Chaco em Porto Murtinho, Mato Grosso do Sul. Foram realizadas coletas nas estações seca e chuvosa, para a obtenção de materiais férteis, por meio de caminhadas aleatórias. O presente estudo fornece chave de identificação dos táxons, descrições, ilustrações, comentários taxonô

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Sashidhara, Koneni V., Suriya P. Singh, and P. K. Shukla. "Antimicrobial Evaluation of Clerodane Diterpenes from Polyalthia Longifolia Var. Pendula." Natural Product Communications 4, no. 3 (2009): 1934578X0900400. http://dx.doi.org/10.1177/1934578x0900400305.

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Phytochemical investigation of the ethanolic extract of leaves of Polyalthia longifolia var. pendula has led to the isolation of seven clerodane diterpenoids and five alkaloids. (-)-14, 15-bisnor-3, 11 E-kolavadien-13-one (1), (-)-16-oxocleroda-3,13(14) E-dien-15-oic acid (2), (-)-16α-hydroxycleroda-3,13 (14) Z-dien-15,16-olide (3), (+)-(4→2)-abeo-16(R/S)-2, 13 Z-kolavadien-15, 16-olide-3-al (4), (-)-3β, 16α-dihydroxycleroda-4(18), 13(14) Z-dien45,16-olide (5), (-)-3, 12 E-kolavadien-15-oic acid-16-al (6), (-)-labd-13 E-en-8-ol-15-oic acid (7), liriodenine (8), (-)-anonaine (9), (+)-isoboldine

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Макаров, С. С., М. Т. Упадышев, И. Б. Кузнецова, et al. "Influence of Explant Sterilization Conditions and Lighting on the Morphogenesis of Economically Valuable Forms of Birch and Aspen in vitro Culture." Лесохозяйственная информация, no. 4 (December 16, 2023): 92–102. http://dx.doi.org/10.24419/lhi.2304-3083.2023.4.09.

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Проанализировано влияние режима стерилизации эксплантов и условий освещения при клональном микроразмножении хозяйственно ценных лиственных пород на этапе введения в культуру in vitro. В качестве объектов исследований использовали экспланты Betula neoalaskana, B. pendula var. carelica, B. ulmifolia, B. papyrifera и Populus tremula (триплоидная и диплоидная формы). Наибольшая жизнеспособность неодревесневших эксплантов березы (45–55 %) в культуре in vitro наблюдалась при стерилизации: у B. ulmifolia и B. papyrifera – в растворе 96 %-го спирта (1 мин) и средства Хлорамин Б 5 % (10 мин), у B. neoa

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Santamour, Frank. "Differential Feeding by Adult Japanese Beetles on Foliage of Birch (Betula) Species and Hybrids." Arboriculture & Urban Forestry 27, no. 1 (2001): 18–23. http://dx.doi.org/10.48044/jauf.2001.003.

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Assessment of the relative resistance of various birches to foliar feeding by adult Japanese beetles was complicated by the insects' marked preference for leaves on spur shoots, as opposed to long-shoot leaves, on many trees. Based on the limited numbers of trees tested, the susceptible (most preferred) taxa were Betula alleghaniensis, B. davurica, B. nigra, B. nigra 'Heritage', B. papyrifera, B. populifolia, B. pubescens, B. uber, and B. utilis var. jacquemontii, although some resistant individuals of B. papyrifera and B. populifolia were found. Resistant taxa included B. lenta, B. maximowicz

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Korzhenevskyi, M. A., Yu L. Moshchenskaya, T. V. Tarelkina, and N. A. Galibina. "Genome-Wide Identification and Characterization of Sugar Transporter Genes in Silver Birch." Genetika 60, no. 10 (2024): 31–46. https://doi.org/10.31857/s0016675824100034.

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Sugar transporters play an important role in regulating the long-distance sucrose transport from source to sink organs. The main sucrose absorber in woody plants is developing wood. Thus, sucrose transport, regulated by SUT, SWEET, and MST gene families, will determine the formation of woody biomass. Based on silver birch (Betula pendula var. pendula Roth) genomic data, we identified and analyze encoding sugar transporters in Betula pendula. We conducted BLAST-search, phylogenetic, structural analysis and analysis of cis-acting elements of sugar transporter genes and determined their chromosom

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22

Tabatskaya, T. M., O. S. Mashkina, and O. M. Korchagin. "In vitro modelling of salinity stress for the selection of stress-tolerant birch lines." E3S Web of Conferences 224 (2020): 04013. http://dx.doi.org/10.1051/e3sconf/202022404013.

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This paper examines the salinity stress effect in vitro culture of microshoots of 10 birch clones: Betula pendula L., B. pendula Roth var. carelica (Mercklin) Hämet-Ahti, B. pendula f. ’dalecarlica’ (L.f.) Schneid., B. pubescens Ehrh. We used economically valuable and genetically diverse (various species, varieties, hybrids, polyploids) birch material from in vitro clone collection. We tested 3 in vitro selection methods on 1/2 MS hormone-free nutrient medium: mild – with a prolonged exposure to 0.2% NaCl; gradual – with a step-by-step increase in osmotic concentration (from 0.2% to 1%); sever

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Oksanen, Elina, and Matti Rousi. "Differences of Betula origins in ozone sensitivity based on open-field experiment over two growing seasons." Canadian Journal of Forest Research 31, no. 5 (2001): 804–11. http://dx.doi.org/10.1139/x00-194.

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One-year-old seedlings of nine different white birch seed origins (Betula pendula Roth, Betula platyphylla Sukatchev var. japonica Hara, two crossings of plus trees of B. pendula, and five two-way hybrids between B. pendula, Betula resinifera Britt., and B. platyphylla) were exposed to ambient ozone (control) and 1.3 × ambient ozone concentrations over two growing seasons. At the end of each growing season, the plants were measured for leaf, stem and root growth; visible leaf injuries; leaf senescence; and ribulose 1,5-bisphosphate carboxylase-oxygenase, starch, soluble protein, chlorophyll, c

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Annan, Kofi, Edmund Ekuadzi, Cindy Asare, et al. "Antiplasmodial constituents from the stem bark of Polyalthia longifolia var pendula." Phytochemistry Letters 11 (March 2015): 28–31. http://dx.doi.org/10.1016/j.phytol.2014.10.028.

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Vetchinnikova, Lidia V., Alexander F. Titov, Ludmila V. Topchieva, and Nikolay L. Rendakov. "Estimation of genetic diversity of Karelian birch populations in Kareliausing microsatellite markers." Ecological genetics 10, no. 1 (2012): 34–37. http://dx.doi.org/10.17816/ecogen10134-37.

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We studied genetic structure of populations of Karelian birch Betula pendula var. carelica (Mercklin) Hämet-Ahti, whichlacks second growth. Based on the values of expected and observed heterozygosity, the predominantselection of homozygotes on the background of decrease of the heterozygotes fraction was revealed. Interpopulation differentiation rate (Fst = 0,145) indicates a high inbreeding frequency. Observed genetic characteristics of the populationssuggest that genetic mechanisms play a role in the current decrease of thepopulation size of Karelian birch and its genetic degradation.

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Mashkina, O. S., T. M. Tabatskaya, and O. M. Korchagin. "In vitro selection of birch for tolerance to salinity stress." IOP Conference Series: Earth and Environmental Science 875, no. 1 (2021): 012082. http://dx.doi.org/10.1088/1755-1315/875/1/012082.

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Abstract In vitro modelling of stress is one of the promising avenues for plant breeding for tolerance to negative environmental factors. In this study we examined the effect of NaCl (0.5%) on callusogenesis and morphogenesis of stem explants of different birch genotypes: Betula pendula Roth, B. pendula Roth var. carelica (Mercklin) Hämet-Ahti, B. pendula f. ‘dalecarlica’ (L.f.) Schneid., B. pubescens Ehrh. In our experiments we used pre-selected microclones from our in vitro collection on NaCl (0.2-1.0%) selective media. The clones were contrasted by the degree of their sensitivity to salinit

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Ведерников (Vedernikov), Дмитрий (Dmitrij) Николаевич (Nikolaevich), and Игорь (Igor') Александрович (Aleksandrovich) Казарцев (Kazartsev). "VARIATIONS OF THE CHEMICAL COMPOSITION OF EXTRACTIVE KIDNEYS OF THE KIDNEYS BERES OF ST. PETERSBURG AND THE LENINGRAD REGION." chemistry of plant raw material, no. 2 (January 9, 2018): 123–30. http://dx.doi.org/10.14258/jcprm.2018022743.

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The article is devoted to the differences in the composition of extractive substances of vegetative buds of birch trees in St. Petersburg and the Leningrad region and its change. Buds of birch (Betulae gemmae) are a medicinal product and are included in the state register of medicines. The substances soluble in acetone were studied by chromatography-mass spectrometry method after preliminary methylation with diazomethane. The retention indices of the identified compounds are given. Earlier, the structure of compounds was established by methods of NMR spectroscopy.Birch buds from the surveyed a

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Kontsevaya, I. "Use of antibiotics to optimize micropropagation of Betula pendula var. carelica Merckl." Bulletin of Science and Practice 4, no. 5 (2018): 68–73. https://doi.org/10.5281/zenodo.1246065.

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Dependence of the regenerative capacity of single-bud segments of Betula pendula Roth. var. carelica Merckl. shoots on the presence of some antibiotics in a nutrient medium are discussed in the paper. Methods: cell culture in vitro; statistical analysis. Β–lactam antibiotics are optimal at the stage of multiplication of Karelian birch in vitro with use of single–bud shoot segments as explants. Addition of carbenicillin (500 mg/l) and/or cefotaxime (500 mg/l) to the growth medium allows supporting visually clean tissue culture with no significant negative impact on morphometric

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Dave, Rajeshkumar, Krunal Nagani, and Sumitra Chanda. "Pharmacognostic Studies and Physicochemical Properties of the Polyalthia longifolia var. pendula Leaf." Pharmacognosy Journal 2, no. 13 (2010): 572–76. http://dx.doi.org/10.1016/s0975-3575(10)80062-8.

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Nikolaeva, N. "Morphology of Betula pendula var. carelica bark at the pre-reproductive stage." Modern Phytomorphology 6 (April 1, 2014): 167–74. https://doi.org/10.5281/zenodo.160622.

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Changes in bark morphology at the pre-reproductive stage of Karelian birch are for the first time considered in connection with the type of trunk surface. The bark surface in Karelian birch changes with age from smooth to fissured. At the pre-reproductive stage Karelian birch has smooth bark with different types of exfoliation of the phellem surface layers, and tubercular specimens feature locally fissured bark on muffs at the very onset of their formation, as well as early rhytidome formation. Morphology of the bark tissues complex is a reflection of direction and intensity of the internal pr

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Callaghan, Christopher B., and Siak K. Png. "Twenty-six additional new combinations in the Magnolia (Magnoliaceae) of China and Vietnam." PhytoKeys 146 (April 30, 2020): 1–35. http://dx.doi.org/10.3897/phytokeys.146.52114.

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In accordance with the previous reduction of the remaining genera of subfamily Magnolioideae (Magnoliaceae) into the genus Magnolia, twenty-six new nomenclatural combinations are formally made by transferring to Magnolia some additional Chinese and Vietnamese taxa from the segregate genera of Manglietia, Michelia and Yulania. The following nine new combinations are created from Manglietia, namely Magnolia admirabilis, M. albistaminea, M. guangnanica, M. jinggangshanensis, M. maguanica, M. pubipedunculata, M. pubipetala, M. rufisyncarpa and M. sinoconifera. Also, twelve new combinations are cre

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Callaghan, Christopher B., and Siak K. Png. "Twenty-six additional new combinations in the Magnolia (Magnoliaceae) of China and Vietnam." PhytoKeys 146 (April 30, 2020): 1–35. https://doi.org/10.3897/phytokeys.146.52114.

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In accordance with the previous reduction of the remaining genera of subfamily Magnolioideae (Magnoliaceae) into the genus Magnolia, twenty-six new nomenclatural combinations are formally made by transferring to Magnolia some additional Chinese and Vietnamese taxa from the segregate genera of Manglietia, Michelia and Yulania. The following nine new combinations are created from Manglietia, namely Magnolia admirabilis, M. albistaminea, M. guangnanica, M. jinggangshanensis, M. maguanica, M. pubipedunculata, M. pubipetala, M. rufisyncarpa and M. sinoconifera. Also, twelve new combinations are cre

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Linda, Rostislav, Ivan Kuneš, and Martin Baláš. "Genetic and morphometric variability between populations of Betula ×oycoviensis from Poland and Czechia: A revised view of the taxonomic treatment of the Ojców birch." PLOS ONE 15, no. 12 (2020): e0243310. http://dx.doi.org/10.1371/journal.pone.0243310.

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Birches are generally known for their high genetic and morphological variability, which has resulted in the description of many species. Ojców birch was described in 1809 by Willibald Suibert Joseph Gottlieb Besser in Poland. Since then, several studies assessing its taxonomy were conducted. Today, various authors present Ojców birch at different taxonomic ranks. In Czechia, the Ojców birch is classified a critically endangered taxon and confirmed at one locality consisting of several tens of individuals. However, before a strategy for its conservation can be applied, we consider it necessary

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Morozova, I. V., N. P. Chernobrovkina, M. K. Il’inova, V. P. Pchelkin, and V. D. Tsydendambaev. "Content and Composition of Fatty Acids in Total Lipids from the Buds of Betula pubescens, B. pendula, and B. pendula var. carelica." Russian Journal of Plant Physiology 66, no. 2 (2019): 335–39. http://dx.doi.org/10.1134/s1021443719010102.

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Bhattacharya, Asish K., Hemender R. Chand, Jyothis John, and Mukund V. Deshpande. "Clerodane type diterpene as a novel antifungal agent from Polyalthia longifolia var. pendula." European Journal of Medicinal Chemistry 94 (April 2015): 1–7. http://dx.doi.org/10.1016/j.ejmech.2015.02.054.

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Shishkoff, Nina, Margery Daughtrey, Scott Aker, and Richard T. Olsen. "Evaluating Boxwood Susceptibility to Calonectria pseudonaviculata Using Cuttings from the National Boxwood Collection." Plant Health Progress 16, no. 1 (2015): 11–15. http://dx.doi.org/10.1094/php-rs-14-0033.

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Accessions in the National Boxwood Collection of the U.S. National Arboretum were inoculated with Calonectria pseudonaviculata in order to determine susceptibility to boxwood blight as part of longer-term evaluations of whole plants. Terminal unrooted cuttings were inoculated with C. pseudonaviculata and symptoms rated. Cuttings showed a wide range in susceptibility. There were significant differences in percent diseased leaves and percent defoliation among the 42 species and cultivars. Cuttings of some Buxus sempervirens cultivars were among those with the highest percent diseased leaves, wit

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Ranney, Thomas G., R. E. Bir, and W. A. Skroch. "COMPARATIVE DROUGHT RESISTANCE AMONG SIX BIRCH (BETULA) SPECIES." HortScience 25, no. 9 (1990): 1143f—1143. http://dx.doi.org/10.21273/hortsci.25.9.1143f.

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In order to evaluate and compare adaptability to dry sites, plant water relations and leaf gas exchange were compared in response to water stress among six birch species: monarch birch (Betula maximowicziana), river birch (B. nigra), paper birch (B. papyrifera), European birch (B. pendula), `Whitespire' Japanese birch (B. platyphylla var. japonica `Whitespire'), and gray birch (B. pendula). After 28 days without irrigation, Japanese birch maintained significantly higher stomatal conductance (gs) and net photosynthesis (Pn) than did any of the other species, despite having one of the lowest mid

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Vajna, L. "First Report of Trunk Blight and Canker of Morus alaba var. pendula Caused by Fusarium lateritium f. sp. mori in Hungary." Plant Disease 84, no. 3 (2000): 372. http://dx.doi.org/10.1094/pdis.2000.84.3.372a.

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Morus alba var. pendula (mulberry) is a favorite ornamental tree in Hungary. In 1998 and 1999, a canker disease was observed on this species in a western Hungarian ornamental tree nursery in Köszeg. Bark necrosis and cankers exposing the xylem were observed on the trunks of 1-, 2-, and 3-year-old trees. Pink sporodochia 200 to 400 μm in diameter were found in the necrotic bark. The fungus associated with the trunk cankers was identified as Fusarium lateritium Nees:Fr. f. sp. mori (Desmaz.) Matuo & K. Sato (1) from sporodochia and fungal isolates recovered from necrotic tissues. Isolations

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Krainova, Alina, Aleksandr Antonov, and Ol'ga Lebedeva. "Experience of primary acclimatization of planting material in vitro Betula pendula var. Dalecarlica in the conditions of Arkhangelsk." Forestry Engineering Journal 15, no. 2 (2025): 47–63. https://doi.org/10.34220/issn.2222-7962/2025.2/4.

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The article covers the experience of adaptation to natural conditions of the northern region of planting material Betula pendula var. Dalecarlica, which was obtained by laboratory micropropagation and transported to the place of the experiment. Dalecarlica birch is known for its decorative properties and resistance to the growing environment, so it has a high potential for use in landscaping northern cities. Plants cultivated in vitro provide genetic homogeneity and high quality of planting material. To minimize stress after transportation and preparation of seedlings for natural con-ditions,

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Zaripova, A. A. "In vitro conservation and propagation of Betula pendula Roth var. carelica (Mercklin) Hamet-Ahti." IOP Conference Series: Earth and Environmental Science 876, no. 1 (2021): 012083. http://dx.doi.org/10.1088/1755-1315/876/1/012083.

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Weiguo, Zhao, Zhou Zhihua, Miao Xuexia, et al. "Genetic relatedness among cultivated and wild mulberry (Moraceae: Morus) as revealed by inter-simple sequence repeat analysis in China." Canadian Journal of Plant Science 86, no. 1 (2006): 251–57. http://dx.doi.org/10.4141/p04-110.

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The genetic diversity of 27 mulberry (Morus spp.) genotypes mainly from China was investigated using inter-simple sequence repeat (ISSR) markers to assist in addressing breeding objectives and conserving existing genetic resources. Of the 22 primers screened, 15 produced highly reproducible ISSR bands. Using these 15 primers, 138 discernible DNA fragments were generated with 126 (91.3%) being polymorphic, indicating considerable genetic variation among the mulberry genotypes studied. Genetic similarity ranged from 0.6014 between Yu 2 and Yu 711 to 0.9493 between Cuizhisang and Dejiang 10. The

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Tarelkina, Tatiana V., Ludmila L. Novitskaya, Natalia A. Galibina, et al. "Expression Analysis of Key Auxin Biosynthesis, Transport, and Metabolism Genes of Betula pendula with Special Emphasis on Figured Wood Formation in Karelian Birch." Plants 9, no. 11 (2020): 1406. http://dx.doi.org/10.3390/plants9111406.

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Auxin status in woody plants is believed to be a critical factor for the quantity and quality of the wood formed. It has been previously demonstrated that figured wood formation in Karelian birch (Betula pendula Roth var. carelica (Merckl.) Hämet-Ahti) is associated with a reduced auxin level and elevated sugar content in the differentiating xylem, but the molecular mechanisms of the abnormal xylogenesis remained largely unclear. We have identified genes involved in auxin biosynthesis (Yucca), polar auxin transport (PIN) and the conjugation of auxin with amino acids (GH3) and UDP-glucose (UGT8

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Laitinen, Jaana, Matti Rousi, Jorma Tahvanainen, Heikki Henttonen, and Jaakko Heinonen. "The effects of nutrient variation and age on the resistance of three winter-dormant white birch species to mammalian herbivores." Canadian Journal of Forest Research 34, no. 11 (2004): 2230–39. http://dx.doi.org/10.1139/x04-109.

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In this study, we investigated variation in the resistance of winter-dormant white birch species (Betula resinifera Britt., Betula pendula Roth, and Betula platyphylla Sukatchev var. japonica Hara) at different ontogenetic phases to mountain hares (Lepus timidus L.) and field voles (Microtus agrestis L.). The birches were grown for 4 years in outdoor pots and in a field experiment at different nutrient levels. The species differed in their overall levels of resistance to mountain hares and in their resistance responses at different nutrient levels. The exotic species, B. resinifera and B. plat

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Thang, Tran Dinh. "Essential Oil Constituents of Desmos Cochinchinensis Lour, and Polyalthia Longifolia var. Pendula Hort from Vietnam." Plant 1, no. 4 (2013): 45. http://dx.doi.org/10.11648/j.plant.20130104.11.

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Bhattacharya, Asish K., Hemender R. Chand, Jyothis John, and Mukund V. Deshpande. "ChemInform Abstract: Clerodane Type Diterpene as a Novel Antifungal Agent from Polyalthia longifolia var. Pendula." ChemInform 46, no. 33 (2015): no. http://dx.doi.org/10.1002/chin.201533236.

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Gu, Mengmeng, James A. Robbins, Curt R. Rom, and Jason McAfee. "JAPANESE BEETLE (Popilla japonica NEWMAN) FEEDING PREFERENCE ON BIRCH TAXA (BETULA)." HortScience 40, no. 3 (2005): 873e—873. http://dx.doi.org/10.21273/hortsci.40.3.873e.

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Japanese beetle (Popilla japonica Newman) has caused severe damage on a wide range of horticultural crops since its first introduction to the Eastern United States from Japan in 1916. Leaves are skeletonized by adult beetles feeding in masses, which makes this insect damage easy to identify. In Arkansas, Japanese beetle was first trapped in Washington County in 1997 and has reached epidemic proportions in the most recent three years. Leaf skelotonization and feeding preference on eighteen birch accessions by Japanese beetle were recorded in 2003 and 2004. There was a wide range from no feeding

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Демидова, Наталья Анатольевна, Татьяна Михайловна Дуркина, Людмила Георгиевна Гоголева, and Наталья Николаевна Васильева. "THE RESULTS OF INTRODUCTION TEST OF THE EUROPEAN FLORA REPRESENTATIVES OF THE GENUS L. IN THE DENDROLOGICAL GARDEN NAMED AFTER V.N. NILOV." Вестник Бурятской государственной сельскохозяйственной академии имени В. Р. Филиппова, no. 1(66) (March 29, 2022): 83–90. http://dx.doi.org/10.34655/bgsha.2022.66.1.011.

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В статье показаны результаты интродукционного испытания представителей рода Betula L . европейской флоры в коллекции дендрологического сада имени В.Н. Нилова Северного научно-исследовательского института лесного хозяйства. Представители этого рода распространены во всех природных зонах Северного полушария с умеренным климатом, от тундры до субтропиков. В работе приведены данные о росте, репродуктивной способности и зимостойкости берёз различного происхождения в условиях Архангельска. С момента создания коллекции древесных растений (1968) было испытано 50 таксонов рода Берёза, из них 9 - предст

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Sashidhara, Koneni V., Suriya P. Singh, Ruchir Kant, et al. "Cytotoxic cycloartane triterpene and rare isomeric bisclerodane diterpenes from the leaves of Polyalthia longifolia var. pendula." Bioorganic & Medicinal Chemistry Letters 20, no. 19 (2010): 5767–71. http://dx.doi.org/10.1016/j.bmcl.2010.07.141.

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Berezovska, Daria, Tomasz Oszako, Tadeusz Malewski, et al. "Effect of Defoliation on the Defense Reactions of Silver Birch (Betula pendula) Infected with Phytophthora plurivora." Forests 12, no. 7 (2021): 910. http://dx.doi.org/10.3390/f12070910.

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In natural environments, plants develop adaptive mechanisms at the cellular and molecular levels to cope with many external factors, e.g., insects and soil pathogens. We studied physiological stress induced by different levels of foliage removal (defoliation 30% and 60%) and by infection of root rot pathogen Phytophthora plurivora on the common Polish tree species, Betula pendula, grown in an open greenhouse. This study showed that P. plurivora damaged the root system which negatively impacted all morphological parameters. However the loss of 30% of the leaves had a positive effect on defense

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Lee, Eun-Ho, Shin Hyub Hong, Hye-Jin Park, et al. "Inhibitory activity against biological enzyme and anti-microbial activity of phenolics from Sambucus sieboldiana var. pendula Leaves." Journal of Applied Biological Chemistry 64, no. 1 (2021): 5–11. http://dx.doi.org/10.3839/jabc.2021.002.

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