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苏铁类植物传粉生物学研究进展(综述)

             

摘要

苏铁类植物是现存最古老的种子植物,研究其传粉特点,对于研究种子植物的起源与演化、植物与动物的协同进化以及苏铁类植物的繁殖机制、濒危机制有重要意义。本文从苏铁雌雄株开花物候学、传粉媒介及传粉机制等方面,对苏铁类植物传粉生物学相关研究进行综述,并提出今后该类植物传粉生物学研究的建议:对更多苏铁属种类未知的传粉机制进行研究;更广泛地应用排除法研究苏铁类特别是苏铁属植物的传粉媒介,进一步探讨传粉昆虫与苏铁类的共生关系问题%  Cycads are the most primitive living seed-plants. Studying on the pollination biology of cycads has significant value for researching into the origin, phylogeny of seed plants, the evolution of dependent mutualism between the insects and cycads, as well as the mechanism of reproduction and the mechanism of endanger. In this review, we summarize the information available concerning the pollination biology of cycad, including morphology and structure of male and female cone, floral phenology of male and female plants, the medium of pollination and the mechanism of pollination. For future research, we suggested that more studies should be carried out on the pollination of cycad (especially for the Cycas) in a wider range, and the exclusion method should be conducted to determine the medium of pollination of cycad more widely, and more detailed studies should be done about the problem of that insect is in highly specialized dependent mutualisms with cycads.

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