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题名: Studies on the reproductive biology and endangerment mechanism of the endangered plant Manglietia aromatica
作者: null(潘跃芝); Liang, HX; null(龚洵)
刊名: ACTA BOTANICA SINICA
关键词: endangered plant ; Manglietia aromatica ; reproductive biology ; endangerment mechanisms
英文摘要: The embryogenesis, pollen germination, floral character and seed physiology of the endangered plant Manglietia aromatica Dandy were investigated. Based on this study, this species has very low seed set rate. The abortion rate of functional megaspores in all the ovules is 27.9%, the egg cell abortion rate of mature embryo sacs is up to 80%, and the germination rate of pollen grains is as low as nearly 0.01%. In addition, the floral structure appears to be another limited factor for the effective pollination of this species. The endangerment mechanism of this species seems to be comprehensive. Human's destroying actions are the direct factors that have made the population degenerate quickly; low reproductive ability and the destroyed environments are the main reasons that prevent the population from renovating and spreading. Therefore, the conservation measures suggested by this study are to research the breed technology, artificial population renovating, in situ conservation, and ex situ conservation.
出版日期: 2003-03-01
卷号: 45, 期号:3, 页码:311-316
语种: 英语
收录类别: SCI
学科分类: Biochemistry & Molecular Biology; Plant Sciences
ISSN号: 1672-6650
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/2381
Appears in Collections:资源植物与生物技术所级重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Peoples R China

Recommended Citation:
Pan, YZ; Liang, HX; Gong, X.Studies on the reproductive biology and endangerment mechanism of the endangered plant Manglietia aromatica,ACTA BOTANICA SINICA,2003,45(3):311-316
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