Combining electron microscopy observation with DNA fluoresence detecting technique, it is systematically studied the ultrastructure of microspore, the distribution of plastid and mitochondria and the changes of organelle DNA at different developing stages in Phaseolus vulgaris, Pisum sativum, and Lilium Spec.(L. davidii and L. regale).

基于上述的情況黄片一级二级三级黄，本研究應(yīng)用電鏡和DNA熒光技術(shù)系統(tǒng)研究了菜豆最新91地址偷自在线永久入口、豌豆及百合屬中王百合和蘭州百合這些植物種小孢子發(fā)育的超微結(jié)構(gòu)，質(zhì)體和線粒體的分布形式及其DNA的變化情況與遺傳的關(guān)系国产熟在线视频，并應(yīng)用RFLP分析了蘭州百合的質(zhì)體遺傳方式AAA黄色视频在线观看，同時對另一種可遺傳的細(xì)胞器——線粒體的遺傳方式也進(jìn)行了研究。

These abnormal changes mainly occurred at two stages:(1) at meiotic prophase, almost half of Peiai 64S microsporocytes exhibited aberration, with sparse free ribosomes, underdeveloped mitochondria and many swollen endoplasmic reticula.

這些變化主要發(fā)生在兩個階段：（1）減數(shù)分裂前期8x国产精品V片在线，約半數(shù)的小孢子母細(xì)胞的胞質(zhì)出現(xiàn)異常精品国产免费看，游離核糖體稀少，并具有不發(fā)育線粒體和大量泡狀內(nèi)質(zhì)網(wǎng)国产在线你懂得。

The abnormality appeared in sporogenic stage and later followed vacuoles and enlarged taptum.

在小孢子發(fā)育過程中国产精品福利日韩，絨氈層細(xì)胞出現(xiàn)液泡化、肥大18Jizz高潮合集、增生等異巢俦苹粕悠得夥芽矗現(xiàn)象。

In the stage of sporogenous tissue, the Ca^2＋ fluorescence intensity was well-proportioned in different cell layer of anther wall.

早期四分體小孢子細(xì)胞質(zhì)中Ca^2＋熒光強(qiáng)度較強(qiáng)国产无遮挡裸体免费视频不卡，胼胝質(zhì)壁無熒光美国av毛片；后期細(xì)胞質(zhì)中的Ca^2＋熒光減弱，而胼胝質(zhì)壁處Ca^2＋熒光增強(qiáng)专看一级黄色片的网站。

The temperature affects the sustained time of secondary sporogenous cell split, the sustained time of microspore mother cell, formation speed and regular of male gametophyte.

溫度影響次生造孢細(xì)胞持續(xù)分裂的時間、小孢子母細(xì)胞的持續(xù)時間及雄配子體的形成速度和整齊度好吊操国产精品。

Under low temperature condition, fertility restoring, anther developing normally, the tetrads formed after archesporical cell, sporogenous cells and microspore mother cell. Subsequently, microspores were free from the tetrad of fertile anther and formed mature pollen grains, tapetumof the fertile anthers began to disintegrate and disappear at last.

在低溫處理條件下欧美性爱地址，育性恢復(fù)，花藥發(fā)育正常国产精自拍，經(jīng)過孢原細(xì)胞期超碰在线免费精品、造孢細(xì)胞期、花粉母細(xì)胞期后亚洲激情图片视频，可以順利形成四分體国产日韩欧美丝袜，可育花藥的四分體可以釋放出小孢子并發(fā)育為成熟的花粉粒，同時絨氈層細(xì)胞開始解體韩国日本黄色视频，最后消失欧洲免费A区B区视频。

In particular during microsporogenesis and microspore development, a lot of specific proteins in staminate flowers vanish, which shows the proteins metabolism is on the decline and staminate flowers turn to death.

尤其是雄花在小孢子發(fā)生及發(fā)育期間，大量的特異蛋白消失，顯示了雄花蛋白質(zhì)代謝下降并將走向凋亡歷程的信息黄色操逼视频网站。

The abnormity of tapetal cells vas also an important reason for the degeneration.

另外在线免费观看的黄页，絨氈層細(xì)胞質(zhì)的液泡化也是小孢子敗育的一個重要原因。

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

據(jù)此認(rèn)為激情文学激情图片，培矮64S的花粉敗育可能是由小孢子母細(xì)胞或花粉外壁的異常發(fā)育造成的亚洲高清乱码午夜电影网制服，而不是由絨氈層發(fā)育引起的。

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

花粉敗育過程中亚洲国产aaaaaaaa片，小孢子液泡膜和細(xì)胞質(zhì)膜斷裂破碎99久久国产超碰，細(xì)胞質(zhì)解體，線粒體最新在线精品国产福利、質(zhì)體在线超碰、內(nèi)質(zhì)網(wǎng)等細(xì)胞器解體或退化，絨氈層持續(xù)不解體亚洲欧美V视色一区二区，并缺少烏氏體的分泌国产精品特级女人18毛片A毛片。