Kropf D L, Kloareg B, Quatrano R S
Department of Botany and Plant Pathology, Oregon State University, Corvallis 97331.
Science. 1988 Jan 8;239(4836):187-90. doi: 10.1126/science.3336780.
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 with 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.
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，研究了细胞壁在墨角藻合子极化过程中的额外需求。测试了受精卵原生质体根据单侧光的定向向量建立轴的能力。结果表明，轴的形成不需要细胞壁。然而，在新的细胞壁合成之前，轴的方向仍然不稳定。细胞壁的存在是轴固定的绝对必要条件。
