绒毡层

讨论了花药体细胞组织&绒毡层和药内壁对花粉核DNA合成的影响。

Effect of the somatic tissue ( tapetum and anther wall ) on DNA synthesis by pollen was also discussed .

可能不育花药绒毡层发育迟缓、单核边位期不育花粉细胞质膜活跃的ATPase活性及花粉核异常与花粉败育存在较为密切的关系。

The above results suggest that later developed tapetum , together with abnormal pollen nucleus and high ATPase activity on plasma membrane of the sterile pollen at big vacuole pollen stage , may be closely related to male sterility .

绒毡层细胞始终含丰富的DNA、RNA、蛋白质。

Tapetal cells always contain rich DNA , RNA and protein .

利用免疫组织化学分析方法，对文冠果不同时期两性花花药和雄花花药内B1的存在和分布进行了研究，结果显示：B1分布在花药的绒毡层中。

The immunohistochemical localization of B1 was carried out for the first time in two types of flowers of Xanthoceras sorbifolia Bunge .. The result showed that B1 distributed in tapetum .

原位杂交的结果显示AMS在花药发育的第6、7期的减数分裂细胞和绒毡层细胞中强烈表达。

In situ hybridization analysis revealed that AMS is highly expressed in tapetum and meiocytes during anther development .

陆地棉（Gossypiumhirsutum）绒毡层细胞间的胞质通道

Cytoplasmic Connections Between Tapetal Cells of Gossypium hirsutum

对显花植物而言，花粉囊绒毡层细胞程序化死亡（PCD）对减数分裂后雄胚子的正常发育是十分关键的。

Programmed cell death ( PCD ) during tapetum degeneration in postmeiotic anthers is critical for the proper development of male gametophytes in flowering plants .

细胞学观察发现，JnA的败育时期发生在单核晚期至二核花粉期，败育发生与绒毡层解体异常有关。

Through the study for cytology of JnA , it was found that JnA aborted at last microspore-2-celled pollen stage and abortion was relative to abnormal split of tapetum .

通过分析初步推测A1点是雄蕊正常发育特有的，可能是花药绒毡层特异基因表达的产物，B1点可能是影响雌花中雄蕊正常发育，导致雄蕊败育的一种重要蛋白。

This result suggested that Al protein was the endemic in normal development stamens and maybe a produce of specific gene in anther tapetum , and B1 protein affected the development of stamens in female flower and maybe a important protein leading contabescence .

M-101品种花药绒毡层的解体过程大体可分为两个阶段：在小孢子发育期，绒毡层主要分泌孢粉素；

In cultivar M-101 , the process of tapetal disintegration might be divided into two phases : secreting sporopollenin at microspore developmental stage ;

利用派罗宁B-黄色组分诱导孢粉素产生荧光的特异性，观察了水稻M101品种以及它的无花粉型胞核雄性不育（GMS）突变体Ⅰ-15系花药绒毡层解体过程中孢粉素的行为。

Sporopollenin behavior during the process of tapetal disintegration of rice cultivar M-101 and its induced genetic male sterile ( GMS ) no pollen mutant , line ⅰ - 15 , was observed by using the yellow fraction of pyronin B to specifically induce the sporopollenin to fluoresce .

此外，珠被内表皮细胞发育为珠被绒毡层。

In addition , the inner integument cells developed into endothelium .

在花粉发育期，绒毡层主要降解非孢粉素物质。

And degrading non - sporopollenin substances at pollen developmental stage .

珠被内层细胞特化为珠被绒毡层。

Inner cells in the integument differentiated into integument tapeta .

绒毡层细胞发育异常，出现巨型化而挤满整个药室；

Tapetum cells developed abnormally , giantized and crammed the anther chamber ;

小孢子内多糖，蛋白质含量减少；绒毡层无明显变化；

The content of polysaccharides , protein were reduced in the microspore .

2-细胞花粉时期，绒毡层膜明显可见；

The tapetal membrane is distinctly shown at the binucleate pollen stage .

蓝果忍冬绒毡层为变形绒毡层。

Tapetal layer of blue honeysuckle belongs to amoeboid tapetum . 3 .

绒毡层为分泌型.小孢子母细胞减数分裂时，胞质分裂为同时型，小孢子呈四面体型排列。

Penetration into the cell ; The tapetum is of the secretory type .

四分体时期，绒毡层细胞内部结构开始解体。

In tetrad stage , the structures of tapetal cells begin to dissociate .

西瓜绒毡层和花粉发育的进一步观察

Further observation on tapetum and pollen development in Watermelon

成熟花粉粒为二细胞型，绒毡层为分泌绒毡层；

The mature pollen grain is 2-cells and the tapetum is secretory type .

由此可见：其雄性不育与绒毡层的发育异常有直接联系。

All these showed that male sterility is directly associated with tapetal abnormalities .

绒毡层细胞在四分体&单核早期发生增生；

Tapetum cell hyperplasia from the tetrad to the single nucleus early period .

高等开花植物的花药绒毡层在花粉发育中发挥十分重要作用。

In flowering plants , tapetum plays an important role in pollen development .

单核花粉时期绒毡层细胞周围集聚一层Ca2+沉淀。

There were a layer Ca 2 + precipitates around the tapetal cells .

糜子绒毡层及雄配子体的超微结构

Ultrastructure of Tapetum and Male Gametophyte in Panicum miliaceum

腺质绒毡层，细胞具二核；

The tapetum is of the glandular type , of two cell nuclei .

小孢子囊由表皮、中间层、绒毡层和造孢组织组成。

Gynospore sac consisted of epidermis , middle layer , tapetum and sporogenous tissue .

绒毡层细胞延缓解体；

The degeneration of tapetum cells was delayed ;