Chromosomal polymorphism in 12 populations of Mikania micrantha (Compositae)
نویسندگان
چکیده
منابع مشابه
Seed germination eco-physiology of Mikania micrantha H.B.K
Mikania micrantha H.B.K is an invasive alien weed in South China. To help understand the mechanisms of its invasiveness, we studied its seed germination ecophysiology. We found that the optimal temperatures for seed germination were 25, 30, 15/30°C (night/day), and an ambient temperature (24-32°C). Germination percentage (GP) in dark was less than 10%, and it increased with increasing light int...
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A phytochemical study on the aerial parts of Mikania micrantha led to the isolation of two new phenolic compounds, benzyl 5-O-β-d-glucopyranosyl-2,5-dihydroxybenzoate (1) and (7S,8R)-threo-dihydroxydehydrodiconiferyl alcohol 9-acetate (2), together with twelve known compounds, benzyl 2-O-β-d-glucopyranosyl-2,6-dihydroxybenzoate (3), 4-allyl-2,6-dimethoxyphenol glucoside (4), (+)-isolariciresino...
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Invasive alien species Mikania micrantha, which originated from Central and South America, has spread quickly and become one of the most seriously invasive weedy species in Yunnan Province, Southwest of China. The harmful effects of this plant on major cash crops and local plant communities have been surveyed in 50 townships of 6 counties of Yunnan Province since 2006. Moreover, bioactivity and...
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Objective: The present study was designed to evaluate adaptogenic activity of methanolic and aqueous extract of roots of Mikania micrantha Kunth in Wistar albino rats using different experimental models such as Anoxia stress tolerance, swimming endurance and immobilisation stress. Methods: The plant was subjected to preliminary phytochemical screening. The parameters like anoxia stress toleranc...
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In Drosophila willistoni, the amount of chromosomal polymorphism measured as the mean number of heterozygous inversions per fly in a population was found by da Cunha, Burla, and Dobzhansky,l and verified by others,2' to be generally proportional to the diversity of ecological niches available to the particular population. Recently Dobzhansky4 examined samples of this species from Central Americ...
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ژورنال
عنوان ژورنال: Genetics and Molecular Biology
سال: 1999
ISSN: 1415-4757
DOI: 10.1590/s1415-47571999000300025