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- 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。
- The tapetum cells have dual origin and belong to the glandular type. 主要结果如下:花药四室,药壁发育为基本型;
- 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;
- The form of tapetal cell nucleus is round or long elliptical. 细胞核有圆形和长椭圆形2种形态。
- Tapetum cells were elongated, vacuolated or tapetum was made up of multilayer cells or discomposed tardily. 绒毡层细胞径向过度伸长,高度液泡化,且出现多层细胞,严重挤压小孢子母细胞,解体较晚且充塞花粉囊室;
- The middle layer and the tapetum cells are totally absorbed as nutrient at last. 中层和绒毡层细胞最终作为营养被全部吸收利用。
- In D18S, on the contrary, there is no apparent disintegration at meioses stage.,only in a few tapetum cells occurred some blank regions. 不育系水稻D18S绒毡层在减数分裂期解体现象不明显,仅在部分细胞内部形成空腔;
- The degenerating tapetum nuclei in the middle of anther locules are from the tapetum cells, which undergo mitosis, then intrude into the anther locules and degenerate in situ at the early stage. 绒毡层异型起源,属于腺质型绒毡层,药室内具有的退化绒毡层核是早期该层细胞有丝分裂凸入药室中央并原位退化形成的;
- At the late microspore stage, the degeneration of the tapetal cell begins, and the thickening of the endothecium cell wall by callose happens. 小孢子晚期,绒毡层细胞开始解体,药室内壁细胞开始加厚,其加厚的物质为胼胝质类物质。
- Abbreviation: T: Tapetal; N: Nucleus; TE:Tetrad; TW: Wall of tapetal cell; V: V acuole; D: Dictyosome; C: Callose; M: Mitochondria. 绒毡层细胞,N:细胞核,TE:四分体,TW:绒毡层细胞壁,V:液胞,D:高尔基体,C:胼胝质壁,M:线粒体。
- Nelumbo nucifera planted in Fujian GAP base was selected,the development of the microspores,and the dynamic of the endothecium and tapetal cell were observed by paraffin section. 以建莲GAP基地栽培的太空莲为实验材料,通过石蜡切片观察到了从小孢子母细胞到成熟花粉的发育过程,以及花药的药室内壁、绒毡层细胞的变化特点;
- Examination of anthers’transverse sections showed that male sterility of transformed plants was associated with the destruction of the tapetal cell layers. 花药的横向解剖结构表明:转基因油菜雄性不育与绒毡层细胞的破坏有关。
- The results showed that microsporogenesis could process normally and there was no difference in the tapetal cell between 8A and 8B lines before tetrad stage. 结果表明:不育系和保持系都能正常进行减数分裂,绒毡层细胞无明显差异,形成了正常的四分孢子。
- At late anther developing stage, the tapetal cells became to vacuolated, anther chamber was full of giant tapetum and the microspore degenerated completely. 而绒毡层细胞的异常从花粉母细胞时期一直持续到二分体直至四分体。
- In tetrad stage, the structures of tapetal cells begin to dissociate. 四分体时期,绒毡层细胞内部结构开始解体。
- A storage cell in some amorphous memory devices. 某些非晶体存储器中的一个存储单元。
- She was found prostrate on the floor of the cell. 有人发现她趴在小屋的地板上。
- The prisoner rapped out a message on the cell wall. 那囚犯敲打囚室的墙来传达讯息。
- When microspore mother cell (MMC) preparing meiosis, calcium precipitates appeared in the cytoplasm of tapetal cells and callus wall surrounding MMC. 当花粉母细胞进行减数分裂时,花药中的钙颗粒进一步增加,尤其是在小孢子母细胞的胼胝质壁中。
- The prisoner raped out a message on the cell wall. 那囚犯敲打囚室的墙来传达讯息。