绒

Microspore disfunction was closelycorrelated with occurrence of tapetal abnormality.

萝卜胞质大白菜雄性不育系的花药发育从四分体期开始出现异常，绒毡层细胞发生异常膨大。

The results proposed that the abnormalities of microsporocytic cytoplasm or pollen exine, rather than the tapetal development caused the pollen abortion of Peiai 64S.

据此认为，培矮64S的花粉败育可能是由小孢子母细胞或花粉外壁的异常发育造成的，而不是由绒毡层发育引起的。

The disintegration of tapetal cell was relayed, the inner wall of tapetal cell secreted fewer Ubish bodies.

花粉败育过程中，小孢子液泡膜和细胞质膜断裂破碎，细胞质解体，线粒体、质体、内质网等细胞器解体或退化，绒毡层持续不解体，并缺少乌氏体的分泌。

The results showed that PCD was initiated in the tapetal, chalice, and connective cells during tetrad stage after mitosis of the anther tissue cells; however, anther vascular tissues underwent PCD during microspore mother cell stage.

结果表明绒毡层、环形细胞、药隔组织细胞在减数分裂后四分体时期开始出现PCD，而花药维管束细胞从小孢子母细胞时期就开始出现PCD。

Cytological observations of the anther development of pms15-16-2-3 mutant and the wild-type plant showed that the mutant middle layer degenerated later, both the tapetal cell morphology and the tetrads were abnormal, which resulted in few fertile pollen grains formed in the anther.

细胞学观察表明，突变体在花药发育的过程中，中层细胞延迟降解，绒毡层细胞形态分化异常，出现异常的四分体，导致最终只能形成少量的花粉。

According to anther abortion characteristics and hormone functions, it was suggested that IAA, GA3 and ZR deficiency might be associated respectively with the inhibition of starch grain accumulation, pollen mother cell and tapetal cell expansion and tetrad formtion, and that abortion and even death of pollen mother cells and tapetal cells in sterile anther might be accelerated by high ABA accumulation.

根据内源激素的功能推测，不育花药IAA含量过低使花药淀粉积累受阻，GA_3含量不足影响花粉母细胞和绒毡层细胞的膨大，过低的ZR含量使花粉母细胞不能分裂形成四分体，过高的ABA含量促进花粉母细胞退化和死亡。

is that Tai Yu-D2 male sterile lines abortion occurs in monokaryon stage, the tapetal expanding abnormally occurs in dyadphase stage, pollen aborts completely, is a type of no pollen.

泰玉D2不育系花药绒粘层在二分体时期成辐射状膨大，小孢子在单核期败育，花粉败育完全，属无花粉类型。

Microscopic observation of microsporogenesis of the male sterile lines revealed that abortion occurred mononuclear stage. The tapetal cells became higly vaculate, pressing the microsporocyte seriously, interfering the normal microsporpgenesis development and finally leading to pollen grain abortion.

进一步对其细胞形态学进行观察结果表明，ogura和改良型不育系败育时期发生在单核花粉期，绒毡层异常膨大，挤压小孢子正常发育，小孢子液泡化而导致败育，并且在花药发育过程中有一些异常现象发生。

The anther was tetrasporangiate, originated from the stamen primordium. The anther wall was composed of epidermis, fibrous endothelium, middle layer (2~3 layers) and tapetum (1~2 layers).

观光木的花药由花药原基发育而来，具4个小孢子囊，花药壁由表皮、药室内壁、2~3层中层和1~2层绒毡层组成。

He lifts out the ember that he has brought from his own fireside in a clay pot and lights the stack of dried peat and tindery driftwood at the centre of the standing stones.

老汀从一个土罐里举起他从自己家火炉里带来的燃尽的灰烬。之后在立柱中心点起一块干燥的泥煤和火绒流木。。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。