植物学报 ›› 2001, Vol. 18 ›› Issue (03): 347-355.

• 综述与专论 • 上一篇    下一篇

苔藓植物孢子发生的研究进展

于明 周云龙   

  1. (北京师范大学生命科学院 北京 100875)
  • 收稿日期:2000-05-12 修回日期:2000-11-01 出版日期:2001-05-20 发布日期:2001-05-20
  • 通讯作者: 于明

Research Progress in Bryophyte Sporogenesis

YU Ming ZHOU Yun-Long   

  1. (College of Life Sciences, Beijing Normal University, Beijing 100875)
  • Received:2000-05-12 Revised:2000-11-01 Online:2001-05-20 Published:2001-05-20
  • Contact: YU Ming

摘要: 苔藓植物孢子发生的过程是一个复杂的形态建成的过程,在此过程中,孢子母细胞经过减数分裂的两次精确的核分裂以及细胞质分裂,形成单倍体的四分孢子,再经孢子壁的发育过程,形成成熟的孢子。本文重点介绍了苔藓植物孢子发生过程中细胞质裂片、质体及核的变化、微管系统及纺锤体、胞质分裂和孢子壁形成过程的特点及其研究进展。

Abstract: Sporogenesis in bryophytes is a complex cytomorphogenetic process. It is characterized by precise nuclear and cytoplasmic divisions resulting in tetrads of haploid spores and the development of spore wall. The structure in cytoplasmic lobing, plastid and nuclear change, system of microtubules and the meiotic spindle, meiotic cytokinesis, spore wall development of bryophyte sporogenesis are introduced in this paper.