植物学报 ›› 2004, Vol. 21 ›› Issue (02): 164-171.

• 综述与专论 • 上一篇    下一篇

蕨类植物精细胞运动器和细胞骨架的研究

刘宁 刘建武   

  1. (北京师范大学生命科学学院 北京 100875)
  • 收稿日期:2003-01-27 修回日期:2003-04-03 出版日期:2004-04-20 发布日期:2004-04-20
  • 通讯作者: 刘宁

The Studies of the Locomotory Apparatus and Cytoskeleton in the Spermatozoid of Ferns

LIU Ning LIU Jian-Wu   

  1. (College of Life Sciences, Beijing Normal University, Beijing 100875)
  • Received:2003-01-27 Revised:2003-04-03 Online:2004-04-20 Published:2004-04-20
  • Contact: LIU Ning

摘要: 介绍了近年来蕨类植物游动精子运动器和细胞骨架的研究进展。游动精子由配子体精子器中的非运动细胞发育形成,其分化过程包括了运动器官和细胞骨架的合成和组装。精子发生过程中形成的运动器的各部分结构包括鞭毛、基体、多层结构及附属结构;基体是细胞中新形成的结构,在不同类群的蕨类植物中分别由双中心粒、分支生毛体和生毛体产生。鞭毛、基体和多层结构中的微管带形成了游动精子三个独特的微管列阵,由于微管蛋白的后修饰作用这些微管列阵十分稳定;centrin是运动器中的重要成分, 但功能尚不清楚,可能和细胞骨架及运动器的构建有关。

Abstract: The authers reviewed recent advances in the study of the structure and development of locomotory apparatus and cytoskeleton in the spermatozoid of ferns. The spermatozoids develop from non-motile cells within the antheridia of ferns. Their differentiation process involves the synthesis and assembly of cytoskeleton and motile apparatus. The locomotory apparatus that emerges during the spermiogenesis consists of the multilayered structure (MLS), basal bodies, flagella and accessory structures. Basal bodies are the structures developed from bicentriole, the branched blepharoplast and blepharoplast, respectively, depending on the specific group of ferns concerned.Basal bodies, together with flagella and spline of the MLS, formed three distinct and unique microtubule arrays. The posttranslational modifications in tubulin provide considerable stability to those arrays. Centrin is a major constituent of locomotory apparatus, though it’s function is unclear. Some studies suggest that it is needed in the formation of the cytoskeleton and the locomotory apparatus.