戴云山自然保护区种子植物传粉模式研究

以戴云山国家级自然保护区种子植物名录为研究对象,基于APWeb和文献资料统计种子植物科的传粉模式,研究了戴云山保护区种子植物的主要传粉模式及其传粉模式的祖先状态。结果表明:戴云山保护区种子植物中动物参与传粉有144科,占总科数87.27%;完全利用非生物模式传粉占总科数12.12%;单一传粉模式以动物传粉的科数最多(124科),其次为风媒传粉(14科),水媒传粉最少(4科)。混合传粉模式中,动物和风媒传粉的科数最多。动物传粉模式在戴云山保护区种子植物传粉中占据重要地位。戴云山保护区种子植物科中共有9个原始类群,单一动物传粉8科,动物和风媒混合传粉有1科,表明动物传粉在植物原始类群进化中占据主要地位,可能是现存戴云山被子植物传粉模式中的祖先状态。研究结果旨在为戴云山种子植物发育与演变提供理论依据。

Pollination mode of spermatophyte in DaiYun Mountain Nature Reserve

Taking the plant list of Daiyun Mountain National Nature as a research object, the pollination type of families for seed plants were counted based on APWeb and literatures. The main pollination type and their ancestral state of seed plants in Daiyun Mountain Nature Reserve were studied. The results showed that: there were 144 families being zoophily-related, 87.27% of total families, entirely non-biological pollination mode accounted for 12.12% of all families. For the single pollination modes of seed plants, the families of zoophily-related mode (124 families) were the largest, following by anemophily mode (14 families) and hydrophily mode (4 families). As for the mixed pollination mode of seed plants, the families of zoophily and anemophily mixed mode were the largest. The results showed that the zoophily-related mode played an important role in the pollination of seed plants in Daiyun mountain nature reserve. Meanwhile, there were 9 primitive families in Daiyun mountain nature reserve, which zoophily-related mode with 8 families, and zoophily and anemophily mixed mode with 1 family, which indicated that zoophily-related mode occupied a main position in the evolution of primitive angiosperms, and might be ancestral state of pollination mode for extant angiosperms in Daiyun Mountain. The results could provide a theoretic basis for understanding the development and evolution of seed plants in Daiyun mountain nature reserve.