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中国东北六种藓类植物的细胞学观察

沙伟, 杨晓杰, 潘波, 祖国辉   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1993-09-18 发布日期:1993-09-18
  • 通讯作者: 沙伟

A Cytological Observation on Six Mosses of Northeast China

Sha Wei, Yang Xiao-jie, Pan Bo, Zu Guo-hui   

  • Received:1900-01-01 Revised:1900-01-01 Online:1993-09-18 Published:1993-09-18
  • Contact: Sha Wei

摘要:

本文对我国东北产6种藓类的孢子母细胞减数分裂中期I的染色体数进行了报道。结果如下:
羽枝青藓Brachythecium plumosum (Hedw.)B.S.G.,n=15;钝叶绢藓Entodon obtusatus(Mitt)
Jaeg.,n=11;东亚绢藓E.okamurae Mitt,n=11;丛本藓Anoctangium aestivum(Hedw.)Mitt.,
n=13;真藓Bryum argenteum Hedw.,n=10;尖叶美喙藓Eurhynchium eustegium(Besch.)Dix.,
n=20+2m,其中前三种为首次报道。

关键词: 藓类, 染色体数目, 羽枝青藓, 钝叶绢藓, 东亚绢藓, 丛本藓, 真藓, 尖叶美喙藓

Abstract:

 In this paper the chromosome number of 6 mosses species are reported.
The materials used for investigation were taken from immature capsules. Meiosis
in spore mother cells were observed, and the results are as follows: Brachythecium
plumosum, n=15. Entodon  obtusatus, n = 11. E.okamurae, n = 11.
Anoectangium  aestivum,  n= 13. Bryum  argenteum, n= 10. Eurhynchium
eustegium, n = 20+ 2m. The chromosome number of the former three species are re-
ported for the first time.

Key words: Chromosome number, Brachythecium plumosum, Entodon obtusatus, Entodon okamurae, Anoectangium aestivum, Bryum argenteum, Eurhynchium eustegium.