苔藓植物孢子发生的研究进展

摘要

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 bryophytesporogenesis are introduced in this paper.%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。