中国濒危水生蕨类植物研究进展

Advances in the Studies of the Endangered Aquatic Fern in China

报道了中国濒危的水韭属和水蕨属植物在细胞生物学、生态学、进化生物学、遗传学、分子生物学和生物地理学等领域的研究进展.资料显示,生境的破坏和丧失是导致水生蕨类植物在我国濒危的主要原因.遗传多样性和遗传结构的研究为其制定科学的保护策略提供了基础遗传学资料.孢子、细胞学和分子生物学研究表明,中国有中华水韭(Isoetes sinensis)、高寒水韭(I.hypsophila)、云贵水韭(I.yunguiensis)、台湾水韭(I.taiwanensis)和东方水韭(I.orientalis)5种水韭,没有宽叶水韭(I.japonica).中国产的水蕨可能存在隐种.另外,还讨论了中国濒危水生蕨类植物的保护措施.

The advances for studies on cell biology,ecology,evolutionary biology,genetics,molecular biology,and phylogeography of the endangered aquatic fern in China is reviewed.The results indicated that the destruction and loss of aquatic habitats might be the main factors responsible for the reduction in Isoetes and Ceratopteris populations.The genetic information presented in the study may provide an evidence to support the protection of natural populations of the endangered aquatic fern in China.Studies on spores,cell biology,and molecular biology revealed that there are Isoetes sinensis,I.hypsophila,I.yunguiensis,I.taiwanensis,and I.orientalis in China,mistaking I.yunguiensis for I.japonica.There were cryptic species probably in the fern Ceratopteris thalictroides in China.Conservation strategies were also discussed.