• Journal of Ecology and Environment
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• 제31권3호
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• pp.207-211
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• 2008

We investigated the leaf demography of a temperate woody liana, Akebia trifoliata, in a temperate forest in Japan, Akebia is semi-evergreen: some leaves are shed before winter, while others remain through the winter. Previous studies of semi-evergreen species found that variation in leaf life span was caused by variation in the timing of leaf emergence, Leaves that appeared just before winter over-wintered, while leaves appearing earlier were shed, However, it is unclear whether leaves of the same cohort (i.e., leaves that appear at the same time within a single site) show variation in life span under the effect of strong seasonality. To separate variation in life span among the leaves in each cohort from variation among cohorts, we propose a new method - the single leaf diagram, which shows the emergence and death of each leaf. Using single leaf diagrams, our study revealed that Akebia leaves within a cohort showed substantial variation in life span, with some over-wintering and some not. In addition, leaves on small ramets in the understory showed great variation in life span, while leaves on large ramets, which typically reach higher positions in the forest canopy, have shorter lives, As a result, small ramets were semi-evergreen, whereas large ramets were deciduous, The longer lives of leaves on small ramets can be interpreted as a shade-adaptive strategy in understory plants.

• 대한본초학회지
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• 제26권1호
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• pp.1-6
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• 2011

Objectives : Due to morphological similarity, many substitutes and counterfeits have been used as Moktong for thousands of years. This study was designed to determine discriminative criteria for identifying medicinal herbs used as Moktong. Methods : Akebia quinata, A. trifoliata, Clematis armandii, and Aristolochia manshuriensis were collected in various regions. Samples were authenticated and examined by observation and microscopy with paraffin embedding and triple staining using the modified Ju staining method. Results : Three different types of features to establish discriminative criteria for four kinds of Moktong were identified. Botanical features include differences in phyllotaxy, leaf shape, and caulescent. External morphological features were arrangement and size of fine holes(xylem), and overall shape of the section. Internal morphological features include the number of medullary rays, shape of the pitch, type of tissues rounding pitch, appearance of annual rings, shape and amount of crystals(calcium-oxalate), and the appearance of cork cambium. Further details(e.g. identification keys) are in the article. Conclusions : These criteria could provide an effective method for identifying numerous kinds of Moktong distributed in markets throughout northeast Asian nations.

• Plant Resources
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• 제4권2호
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• pp.85-91
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• 2001

Many plant species are used in China in tradtional medicine for the prevention and treatment of cancer. This paper presents some of these species with defals on other pharmacologic evaluation and its tradional Chinese meditional uses. The known bioaktivities and some chemical constituents of each of the species given. Information on bioactivities of each species resulting from tests on experimental animals are given. Many of the known chemical constituents of each species are given. Various species of plants elective for various types. In this meeting I will present on some antitumor of the plants which are as follows ; (1) Akebia trifoliata(Thunb.)Koidz. ((2) Panax notoginseng (Burk.) F, H, Chen ., (3)Ziziphus jujuba Mill., (4)coriotus versicolor(Fr.) Quel., (5) Trich osanthes kirilowii Maxim., (6) Ficus carica Linnaeus., (7) Acanthopanax senticosus(Rupr. et Maxim.)Harms.,(5) Hibiscus mutabilis Linnaeus.,(9) Arctium lappa Linnaeus., (11) Agrimonia pilose Ledebour and (12) Hedyotis diffusa Willd.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2000년도 The 7th International Symposium
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• pp.52-63
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• 2000

Many plant species are used in China in traditional medicine for the prevention and treatment of cancer. This paper presents some of these species with details on other pharmacologic evaluation and its traditional Chinese meditional uses. The known bioaktivities and some chemical constituents of each of the species given. Information on bioactivities of each species resulting from tests on experimental animals are given. Many of the known chemical constituents of each species are given. Various species of plants elective for various types. In this meeting I will present on some antitumor of the plants which are as follows; (1) Akebia trifoliata(Thunb.)Koidz. ((2) Panax notoginseng(Burk.) F, H, Chen., (3) Ziziphus jujuba Mill., (4) coriolus versicolor(Fr.)Que l., (5) Trichosanthes kirilowii Maxim., (6) Ficus carica Linnaeus., (7) Acanthopanax senticosus(Rupr.et Maxim.)Harms., (8) Hibiscus mutabilis Linnaeus., (9) Arctium lappa Linnaeus., (11) Agrimonia pilosa Ledebour and (12) Hedyotis diffusa Willd.