CINE-MICROGRAPHIC STUDIES ON MITOSIS IN ENDOSPERM .3. THE ORIGIN OF THE MITOTIC SPINDLE
CINE-MICROGRAPHIC STUDIES ON MITOSIS IN ENDOSPERM .3. THE ORIGIN OF THE MITOTIC SPINDLE
复制标题
DOI：
10.1016/0014-4827(57)90078-2
复制
发表时间：
1957-01-01
影响因子：
3.7
通讯作者：
BAJER, A
中科院分区：
文献类型：
--
作者：
BAJER, A
有丝分裂纺锤体的胞质部分在细胞核周围形成一个清晰的带，出现在早期前期，并在晚期前期迅速扩大。在Haemanthus katharinae中，该区域的缓慢生长可持续4小时以上，而随后，更快速的发展又占据了30分钟至2小时。在这段时间内，细胞核的体积只轻微地减小。透明区没有明确的结构，与完全形成的有丝分裂纺锤体不同，透明区是半液体，可以从细胞中流出。可能从核迁移到透明区的物质的量相对于透明区的生长是非常小的，并且其定量影响可以忽略。
A clear zone, which is the cytoplasmic contribution to the mitotic spindle, forms around the nucleus, appearing in early prophase and rapidly enlarging in late prophase. In Haemanthus katharinae the slow growth of the zone may last for over 4 hours, while subsequent, more rapid development occupies a further 30 min. to 2 hours. During all this time the decrease in volume of the nucleus is but slight. The clear zone has no definite structure and, unlike the fully formed mitotic spindle, is semi-liquid and may flow out from the cell. The quantity of the substance which may migrate from the nucleus into the clear zone is very small in relation to the growth of the clear zone and its quantitative influence may be neglected.