姬蕨配子体发育的观察

Gametophyte Development of Hypolepis punctata(Thunb.) Mett

首次报道了姬蕨科(Hypolepidaceae)姬蕨(Hypolepis punctata(Thunb.)Mett.)配子体发育阶段的结构特征。介绍了姬蕨配子体的培育方法,包括最初的孢子水培法和后期的配子体土培法。配子体发育过程包括孢子萌发、原丝体发育、叶绿体发育、假根分化、片状体形成、毛状体特征、幼原叶以及性器的出现,并初步讨论了姬蕨配子体发育的系统学意义。

The structural features of gametophytes of Hypolepis punctata （Thund.） Mett. at the development stage are reported, and the culture method for the gametophytes is introduced, including water culture for spores at early stage and soil culture for gametophytes at the late stage. H. punctata gametophyte development includes spore germination, protonema development, ehloronema development, rhizoid differentiation, formation of prothallial plate, and production of trichomes, juvenile prothalli and sex organs. The bearing of development of the gametophytes of H. punctata on the systematics is also discussed.