polar link meaning in English
极性键
Examples
- Oleifera was observed with lm . results showed that there were vegetative cell and generative cell in the pollen grain of genus camellia , the generative cell is more smaller than that of the vegetative cell . the generative cell was lay on the vegetative cell as an elongate spindle , and only the generative cell membrane and nuclear membrane which near the cell polar linked up the vegetative cell membrane , one of the linked area was located near by the aperture of pollen grain
结果表明，山茶属植物花粉粒中含有生殖细胞和营养细胞，生殖细胞较小，呈长纺锤形，游离在营养细胞中，生殖细胞极轴两端的细胞膜和核膜与营养细胞的细胞膜相连，其中一端的连结处位于花粉粒萌发孔附近。