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中国四种藓类的细胞学观察

周云龙, 沙伟, 王长锐, 吴鹏程, 罗健馨   

  1.  (北京师范大学生物系,北京)    (中国科学院植物研究所,北京)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1988-10-18 发布日期:1988-10-18
  • 通讯作者: 周云龙

Cytological Observation of 4 Chinese Moss Species

Zhou Yun-Long, Sha Wei, Wang Chang-Rui, Wu Peng-Cheng, Luo Jian-Xin   

  • Received:1900-01-01 Revised:1900-01-01 Online:1988-10-18 Published:1988-10-18
  • Contact: Zhou Yun-Long

摘要:

我国在苔藓植物细胞学方面的研究尚属空白。本文介绍了藓类植物染色体的研究方
    法,首次报道了我国4种藓类的染色体数。研究材料均取各种藓类的幼嫩孢蒴。  本文对孢子
    母细胞在减数分裂中期I的染色体进行了观察。  尖叶对齿藓Didymodon constrictus(Mitt.)
    Saito.n=14, 陕西绢藓Entodon schensianus C.Mull.n=10十lm, 尖叶走灯藓Plagiomni-
    um cuspidatum(Hedw.)T.Kop.n=6, 牛角藓Cratoneuron filicinum(Hedw.)Spruc.n=10。
    其中的前两种藓类为首次报道。并对后两种藓类的染色体数也进行了讨论。

关键词: 藓类, 染色体数, 尖叶对齿藓, 尖叶走灯藓, 牛角藓, 陕西绢藓

Abstract:

In this paper the chromosome countings of 4 moss species are reported for the
first time in China.  The materials used for investigation were taken from immature capsules.
Meiosis in spore mother cells and also mitosis in the case of Plagiomnium cuspidatum were
observed, with the result: Didymodon constrictus,  n=14, Entodon schensianus,  n=10+lm;
Plagiomnium cuspidatum, n=6, Cratoncuron jilicinum, n=10.  The chromosome numbers of
the former two species are reported for the first time.

Key words: Moss, Chromosome number, Didymodon constrictus, Entodon schen-