The haploid pollen cells develop in the tapetal zone from spore mother cells. 单倍体花粉细胞由绒毡层提供营养发育。
The chromatin of tapetal cell has a period of becoming condensed and then spreading accompanying the meiosis of the microspore mother cells, which will affect the entering of nutrient into the inner part of microsporangium. 绒毡层细胞的染色质伴随着小孢子母细胞减数分裂有一个浓缩和伸展的时期,这个时期影响营养物质向小孢子囊内部转运。
On the contrary, the GA 1+ 4 localized in tapetal cells gradually decreased with the anther development. 绒毡层细胞质和细胞核内GA1+4的分布数量逐渐减少。
Although tapetal cells developed normally, meiotic behavior of chromosomes in pollen mother cells ( PMC) were abnormal, leading to the degeneration of microspores; 绒毡层细胞虽发育正常,但小孢子母细胞减数分裂行为异常;这些都导致小孢子退化。
Tapetal cells always contain rich DNA, RNA and protein. 绒毡层细胞始终含丰富的DNA、RNA、蛋白质。
The results revealed that the tapetal cells of the male sterile A2 developed abnormally at tetrad stage, and they became vacuolated and numerous small vacuoles are present. 结果表明:不育系A2的绒毡层细胞在四分体时期出现异常,小液泡增多,至单核期汇合形成大液泡,绒毡层细胞异常膨大;
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。
The tapetal cells of fertile anther began to synthesis abundant lipid material during microspore development. 在可育花药中,绒毡层细胞在小孢子发育后期已显示出退化迹象,同时在细胞中开始积累脂类物质。
The tapetal cells of CMS line A4 enlarged abnormally at meiotic phase, pressing microsporocyte seriously. 不育系A4在减数分裂期即表现出异常,绒毡层异常肥大;
Cytoplasmic Connections Between Tapetal Cells of Gossypium hirsutum 陆地棉(Gossypiumhirsutum)绒毡层细胞间的胞质通道
The mainly cytological reason resulting the abortion is the abnormal function of the tapetal cells. 导致雄性不育主要的细胞学原因是绒毡层细胞结构、功能的失常。
Fine structure of tapetal cells and Ubisch bodies in the anther of Ophiopogon japonicus 麦冬花药绒毡层和乌氏体的细微结构
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。
There were a layer Ca 2+ precipitates around the tapetal cells. 单核花粉时期绒毡层细胞周围集聚一层Ca2+沉淀。
It is not clear whether the abortion of the tetrads stimulates proliferation of the tapetal cells or the proliferating tapetum actually interferes with microspore development, thereby causing degeneration. 由于绒毡层细胞异常膨大,挤压四分体,四分体不分离产生四分小孢子,从而不能形成正常的花粉粒而导致败育。