CELL-WALL IS REQUIRED FOR FIXATION OF THE EMBRYONIC AXIS IN FUCUS ZYGOTES
CELL-WALL IS REQUIRED FOR FIXATION OF THE EMBRYONIC AXIS IN FUCUS ZYGOTES
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DOI：
10.1126/science.3336780
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发表时间：
1988-01-08
期刊：
影响因子：
56.9
通讯作者：
QUATRANO, RS
中科院分区：
文献类型：
--
作者：
KROPF, DL;KLOAREG, B;QUATRANO, RS
一般认为初级发育轴的建立涉及卵质膜或细胞质的重排。在本报告中，研究了墨角藻受精卵极化对细胞壁的额外要求。测试了受精卵原生质体根据单侧光的定向矢量建立轴的能力。结果表明，轴的形成不需要细胞壁。然而，轴的方向仍然不稳定，直到合成新的细胞壁。细胞壁的存在是轴固定的绝对要求。
Establishment of a primary developmental axis generally is thought to involve rearrangements in the plasma membrane or cytoplasm of the egg. In this report the additional requirement for cell wall in polarization of Fucus zygotes was investigated. Protoplasts of fertilized eggs were tested for their ability to establish an axis in accordance wiht an orienting vector of unilateral light. The results demonstrate that cell wall is not required for axis formation. However, the orientation of the axis remains labile until new cell wall is synthesized. The presence of a cell wall is an absolute requirement for axis fixation.