Title: Gametophyte Development of Dryopteris erythrosora
Abstract: The spores of Dryopteris erythrosora(Eaton) O.Ktze.were cultured on MS medium.The spore germination,gametophyte development and formation of young sporophytes were observed by microscope.The result shows that the mature spores are dark-brown,monolete,bean-shaped in equatorial view and elliptical in polar view.About 7 days after sowing,the spore germination type is Vittaria-type and the gametophyte development is Aspidium-type.The prothallial plates form in 15 days after sowing.The young prothallia develop in 30 days after sowing,they are not symmetry temporarily,but the mature prothallia are symmetrical cordate.Unicellular hairs occur in the whole surface and the margin of the prothallium.The sex organs form in 45 days after sowing.The antheridia are pellets like and formed by three cells.The archegonial neck is often formed by 4 rows of cells.Young embryos can be seen from the prothallium in one month after fecundation.
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
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