THE SPATIAL ASSOCIATION OF THE SPERM CELLS AND VEGETATIVE NUCLEUS IN THE POLLEN GRAIN OF BRASSICA
THE SPATIAL ASSOCIATION OF THE SPERM CELLS AND VEGETATIVE NUCLEUS IN THE POLLEN GRAIN OF BRASSICA
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DOI：
10.1007/bf01290767
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发表时间：
1985-01-01
期刊：
影响因子：
2.9
通讯作者：
GAUDE, T
中科院分区：
文献类型：
--
作者：
DUMAS, C;KNOX, RB;GAUDE, T
在B的成熟花粉中。油橄榄无头精子一对精细胞和营养细胞的核连接在一起，形成一个结构单位，称为雄性生殖单位。精细胞被固定在一个共同的周质中，没有细胞壁。每个精细胞都有一个中心球状体，包含被几个外翻包围的核，外翻提供了它们之间的连接方式。一个精子细胞，通常是最接近营养细胞核的细胞，含有大部分线粒体（不含质粒）。精子似乎是通过其原生质外翻与营养核的被膜相连的。这个单位的作用，在与女性配子复合体的相互作用被认为是。
In mature viable pollen of B. oleraceae var. acephala the pair of sperm cells and the nucleus of the vegetative cell are linked to form a structured unit termed the male germ unit. The sperm cells are held within a common periplasm and have no cell walls. Each sperm cell has a central globular body containing the nucleus surrounded by several evaginations which provide the means for linkage between them. One sperm cell, usually that closest to the nucleus of the vegetative cell contains most of mitochondria profiles (plasmids are absent). The sperm cell appears to be linked by its protoplasmic evaginations to the envelope of the vegetative nucleus. The role of this unit in interactions with the female gametic complex is considered.