鬼伞减数分裂。八。减数分裂过程中纺锤极体融合与分裂的时间进程研究。
Meiosis in Coprinus. VIII. A time-course study of the fusion and division of the spindle pole body during meiosis.
作者信息
Lu B C
出版信息
J Cell Biol. 1978 Mar;76(3):761-6. doi: 10.1083/jcb.76.3.761.
Abstract
The time-course study of meiosis in the fungus Coprinus cinereus (C. lagopus) by electron microscopy reveals that two monoglobular spindle pole bodies (SPB's) of prekaryogamy nuclei come together during karyogamy and are fused. The fusion SPB of postkaryogamy nucleus persists through zygotene and pachytene as evidenced by the presence of axial components and synaptonemal complexes. At early diplotene, the SPB divides. The divided SPB takes on a diglobular form, which grows in size to form two daughter SPB's. These separate and move to opposite poles at metaphase I.
摘要
通过电子显微镜对真菌灰盖鬼伞（毛头鬼伞）减数分裂的时间进程研究表明，前核配期细胞核的两个单球状纺锤体极体（SPB）在核配期聚集并融合。核配后期细胞核的融合SPB在偶线期和粗线期持续存在，轴向成分和联会复合体的存在证明了这一点。在双线期早期，SPB分裂。分裂后的SPB呈双球状，其大小增长形成两个子SPB。这些子SPB在减数第一次分裂中期分离并移向相反的两极。
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