フークス科植物の発生力学 III
Fucusの卵における差次透過性
1957 年 70 巻 825 号 p. 58-61
詳細
1957 年 70 巻 825 号 p. 58-61
As a result of some experiments on eggs of Fucus evanescens, the following was revealed.
(1) Vital staining with various dyes and cytolytic pattern with nicotine sulphate appear uniformly over all the egg surface in the beginning of the development But as soon as the morphological polarity is determined, these begin to appear partlally in the basal pole, then spread towards the apex.
(2) When the egg is immersed in distilled water, it swells and finally ruptures, The rupture occurs at one point before cleavage and in each cell at two-cell stage before the morphological polarity determination, while merely in the basal cell after the determination.
(3) The facts above indicate the presence of a permeability gradient along the morphological polarity axis, highest in the basal, i.e. the rhizoid pole.
