高级检索+
高谦, 张钺. 中国藓类植物孢子萌发和原丝体发育的初步研究[J]. 植物科学学报, 1986, 4(2): 123-133.
引用本文: 高谦, 张钺. 中国藓类植物孢子萌发和原丝体发育的初步研究[J]. 植物科学学报, 1986, 4(2): 123-133.
Gao Chien, Zhang Yue. A PRELIMINARY STUDY ON SPORE GERMINATION AND PROTONEMA DEVELOPMENT OF SOME CHINESE MOSSES[J]. Plant Science Journal, 1986, 4(2): 123-133.
Citation: Gao Chien, Zhang Yue. A PRELIMINARY STUDY ON SPORE GERMINATION AND PROTONEMA DEVELOPMENT OF SOME CHINESE MOSSES[J]. Plant Science Journal, 1986, 4(2): 123-133.

中国藓类植物孢子萌发和原丝体发育的初步研究

A PRELIMINARY STUDY ON SPORE GERMINATION AND PROTONEMA DEVELOPMENT OF SOME CHINESE MOSSES

  • 摘要: 关于苔藓植物的孢子萌发(Spore Germination)和原丝体发育(Protonema Development)的研究,对阐明苔藓植物的各分类群之间的关系和种系发生及系统演化等有重要意义。

     

    Abstract: The spores of nine species of mosses were cultured on the tile surface in Hoagland's solution at 20—25℃. in the culture wares. The materials studied here were gotten from various habitats of different provinces. Physcomitrium eurystomum Sendhl., Funaria hygrometrica Hedw. from Liaoning, Funaria hygromstrica Hedw. and Philonotis seriata Mitt. from Hubei, Ceratodon purpureus (Hedw.) Brid. and Polytrichum juni perinum Hedw. from Heilongjiang, Pohlia elongata Hedw. and Platygyrium repens (Brid.) B.S.G. from Xinjiang Autonomous Region and Brachythecium reflexum (Stark,) B.S.G. from Jilin Provinces respectively. The sporelings of all these nine species are well developed and the normal filamentous protonemata are formed.Our experiments show that the filamentous protonemata consist of three types, namely, the chloronemata, caulonemata and rhizoids. The chloronemata are green filaments and full of chloroplasts in the cells. Its cross walls cross at right angles to the long axis of the protonemal threads. The brown caulonemata are developed from the chloronemata which have the cross walls oblique to the long axis of the filaments, and it sometimes contain a few number of spindlelike or needle-shaped chloroplasts. The buds of the leafy gametophytes are developed from the caulonemata. The rhizoids are very small in comparison with the chloronema and caulonemata, and entirely lacking of chloroplasts. The cross walls of the rhizoids are oblique to the long axis of the filaments. The terminal rhizoids and the primary rhizoids are both present.

     

/

返回文章
返回