FINE STRUCTURE OF STIGMA OF ACETABULARIA GAMETES AND ITS BEHAVIOUR AFTER GAMETE-FUSION

被引:5
作者
KELLNER, G
WERZ, G
机构
[1] Max-Planck-Institut für Zellbiologie, Wilhelmshaven
关键词
D O I
10.1007/BF01256772
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Light and electron microscope studies on the fine structure of the stigma of Acetabularia gametes and on its behaviour after gamete-fusion are described. The stigma, located within the single gamete-chloroplast, is composed of two layers of nearly hexagonal units, separated by double membranes. After gamete-fusion the young zygote cell contains two eye-spots, according to its two chloroplasts derived from each gamete cell. In later stages of zygote development the eyespots appear fragmented. There are indications that stigma fragments become distributed to newly formed chloroplasts. In zygote cells neither fusion of the gamete-chloroplasts nor of the eye-spots were observed. © 1969 Springer-Verlag.
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页码:117 / &
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