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- 2.Primary parietal cell and primary sporogenous cell; 2.;初生壁细胞和初生造孢细胞;
- 2.Primary parietal cell and primary sporogenous cell;3. 2.;初生壁细胞和初生造孢细胞;
- primary sporogenous cell 初生造孢细胞
- The sporogenous cell develops into microspore mother cell. 造孢细胞直接发育成小孢子母细胞。
- Anther wall was formed in a special method due to the homology of tapetum cell and secondary sporogenous cell. 花药壁按特有方式发生,主要特点是绒毡层与次生造孢细胞同源。
- There is only one layer of parietal cells at the stage of sporogenous cell, megaspore mother cell and tetrad. 造孢细胞,大孢子母细胞和四分体时期,周缘细胞仅1层。
- There is a sporogenous cell in the every microsporangium and there are a line of cells in the vertical section. 在花药横切面上,每室一个造孢细胞,在纵切面上,造孢细胞排成一纵列。
- Before the stage of microspore mother cell, few calcium-induced precipitates were found in sporogenous cells and the somatic cells of anther wall. 在造孢细胞到小孢子母细胞时期,花药中钙颗粒增加。
- Cell layers of powder chamber wall and middle-level were increased, tapetum cells were hypertrophied and sporogenous cells or microspore mother cells were disaggregated. 药室内壁、中层层数增加,绒毡层细胞肥大,造孢细胞或花粉母细胞分解解体;
- At the stage of sporogenous cell, only parenchyma around vascular bundle began to store a few starches, but there were no starches in sporogenous cells and anther wall cells. 在造孢细胞时期,仅药隔薄壁细胞开始积累少量的淀粉粒。
- Numerous ribosomes,plastids and mitochondria were found in the cytoplasm of sporogenous cells. 造孢细胞时期,细胞质中含有丰富的核糖体、质体和线粒体。
- Sporogenous cells were vacuolated, misshapen, stretched-out and the clearance between cells was enlarged. 结果发现:败育现象从造孢细胞时期以后每个阶段都有发生,败育形式有造孢细胞液泡化、畸形、拉长、细胞间隙大;
- Cytological investigation on microsporogenesis of male sterility of pepper were studied, the results were as following: Abortion was found from multiplication stage of sporogenous cells. 摘要为了探讨辣椒雄性不育花药败育时期和方式,以辣椒雄性不育系1442A、13733A及其可育系为试材,进行了研究。
- The disease is still in its primary stage. 这疾病仍然在初发阶段。
- 9.Degenerated sporogenous cells; 9.;已退化的造孢细胞;
- The little boy left primary school at eleven. 这个小男孩十一岁时小学毕业。
- Sure. We are friends since primary school. 当然,我们从小学就是朋友了。
- I started primary school when I was 5 years old. 我五岁时开始读小学。
- A primary cause of Tom's failure is his laziness. 懒惰是汤姆失败的主要原因之一。
- Primary school teachers use a lot of visual aids. 小学教师使用大量的视觉教具。