红盖鳞毛蕨配子体发育及其成精子囊素系统的研究

The development of gametophytes and its′ antheridiogen system of Dryopteris erythrosora

研究了光照和黑暗条件对红盖鳞毛蕨孢子萌发率的影响,同时研究了红盖鳞毛蕨成精子囊素对其孢子萌发和配子体发育的影响以及红盖鳞毛蕨成精子囊素对水蕨孢子萌发和配子体发育的影响.实验表明:①光照不是红盖鳞毛蕨孢子萌发的必要条件,但能显著促进其萌发;②在光照条件下,红盖鳞毛蕨成精子囊素可促进其孢子萌发和雄配子体发育;在黑暗条件下不能促进其孢子萌发;③红盖鳞毛蕨配子体各发育时期产生的成精子囊素对水蕨孢子萌发和配子体发育均无显著影响.

The effects of light and darkness on spore germination percentage of the fern Dryopteris erythrosora are investigated. Moreover,the effects of antheridiogen of D. erythrosora on its＇ spores germination and gametophyte development and on spores germination, gametophyte development of Ceratopteris thalictroides are investigated respectively. The results exhibit：（~） The light iUumination is not the prerequisite of spore germination of D. erythrosora. However, the light can markedly promote the spore germination. （~） In light condition, antberidiogen of D. erythrosora promotes the spore germination and the development of the male gametophytes, but inhibits the development of the bisexual gametophytes. But in darkness, the antheridiogen does not promote the spore germination. The antheridiogen of D. erythrosora at different stage of gametophyte development exhibits no obvious effects on the spores germination and gametophyte development of Ceratopteris.