• 花药绒毡层腺质绒毡层类型

    The development of tapetum is glandular type.

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  • 扁豆绒毡层发育超微结构研究

    Studies on ultrastructure of tapetal development in Dolichos lablab l.

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  • 细胞特化为珠被绒毡层

    Inner cells in the integument differentiated into integument tapeta.

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  • 不育毡层细胞可育系迟解体

    The tapetal cells of fertile line disintegrated earlier than those of sterile line.

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  • 花粉成熟时毡层细胞完全解体。

    Tapetal cells degenerate completely when pollen grains reach maturity.

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  • 毡层细胞为质,

    The tapetum belongs to glandular type and has two nuclei.

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  • 单倍体花粉细胞毡层提供营养发育

    The haploid pollen cells develop in the tapetal zone from spore mother cells.

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  • 毡层属于原质

    The tapetum belongs to the periplasmodial type.

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  • 结构特点绒毡层

    The features of structure of anther wall are of one meddle layer and glandular tapetum.

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  • 分体时期毡层细胞内部结构开始解体

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

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  • 毡层过早退化;

    The tapetum degenerates too early.

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  • 毡层分泌

    Tapetum conforms to secretory type.

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  • 毡层细胞仲入小孢子母细胞之间形成小梁”。

    The tapetal cells invest in the sporogenous tissue and form "the Balken".

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  • 绒毡层腺质

    Tapetum belong the secretory type.

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  • 绒毡层细胞始终丰富DNARNA蛋白质

    Tapetal cells always contain rich DNA, RNA and protein.

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  • 花药外表中间纤维内部营养绒毡层构成。

    The anther is made up of an outer epidermis, a middle fibrous layer, and an inner nutritive layer, the tapetum.

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  • 高等开花植物花药绒毡层花粉发育中发挥十分重要作用

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

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  • 毡层:维管植物花粉囊内包围孢子细胞富含营养物质的结构。

    Tapetum (pl. tapeta) A food-rich layer surrounding the spore mother cells in the anthers of vascular plants.

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  • 太谷麦不育株花药细胞发育进程和亚显微结构与可育明显不同

    The ultrastructure of the tapetal layer in male sterile form showed a significantly different feature from that of the fertile form.

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  • 绒毡层细胞孢子时期开始解体,细胞质转变脂滴,供花粉吸收

    The tapetal cells degenerated at microspore stage and its cytoplasm transform into lipids for the microspore absorbing.

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  • 产生主要途径:①分体至单核早期绒毡层细胞体积发生明显增大液化

    The main pathways of causing empty anther sacs are obvious enlargement and liquidization of tapetum cells from tetrad to slope nucleus early period;

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  • 绒毡层解体过程孢粉素行为有关事态及其花粉发育关系等问题进行了讨论。

    The events of sporopollenin behavior during the process of tapetal disintegration and their relations to pollen development are discussed.

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  • 花粉细胞进行减数分裂时,花药绒毡层细胞花粉母细胞出现了许多细小颗粒。

    When microspore mother cell preparing meiosis, abundant calcium precipitates appeared in cytoplasm of tapetal cells and microspore mother cells, and in callus wall surrounding the cells.

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  • 周壁残余物在外壁表面沉积形成, 可分为周壁、周壁周壁外部分。

    The perispore can be distinguished into three layers, i. e. an outer perispore layer, a middle perispore layer and an inner perispore layer.

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  • 小孢子形成开始在绒毡层切线出现球状花粉成熟一部分附着花粉粒表面

    The ubisch bodies which appeared on the inner tangential wall of the tapetum at the time of microspore wall formation are partially remain on the surface of matured pollen grain.

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  • 结合细胞形态学观察,药组织毡层发育解体状况花粉育性氨基酸代谢有着密切关系

    Combining cell morphology, the growth and decline state of tapetum in anther wall tissue are closely related with pollen fertility and amino acid metabolism.

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  • 天竺葵毡层周原质团绒毡层,其原生质体侵入的时间发生孢子中大液泡开始形成时期。

    The tapetum of P. hortorum belongs to periplasmodial tapetum. The invasion into the locule occurs when microspore form large vacuole in its cytoplasm.

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  • 提前解体导致不育系花药的细胞退化证明绒毡层供给营养假说提供了证据。

    The middle layer cell won't degenerate when the tapetum disintegrates prematurely, This proves the hypothesis that the middle layer cells offer nutrients for the tapetum.

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  • 提前解体导致不育系花药的细胞退化证明绒毡层供给营养假说提供了证据。

    The middle layer cell won't degenerate when the tapetum disintegrates prematurely, This proves the hypothesis that the middle layer cells offer nutrients for the tapetum.

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