tapetum的例句大全

The tapetum in the anther wall of white cucumber was developed as well as that of green cucumber.

与青皮黄瓜相比，白皮黄瓜花药壁中绒毡层的发育是正常的。

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Mature anther has four clinandrium and the development of anther wall follows the dicotyledon type. Tapetum is the secretory type.

成熟花药有四个小孢子囊，花药壁发育属双子叶类型，绒毡层细胞具有二型性的特点。

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Cell layers of powder chamber wall and middle-level were increased, tapetum cells were hypertrophied and microsporogenesis or microspore disaggregated;

药室内壁、中层层数增加，绒毡层细胞肥大，造孢细胞或花粉母细胞分解解体；⑤由于花粉母细胞胼胝质壁不降解而无法释放出四分体小孢子；

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

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。

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

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。

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And later on, the tapetum cells disintegrated one after another in different ways.

以后，绒毡层细胞在不同的时间，以不同的形式解体。

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

腺质绒毡层，细胞具二核；

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Specimen preparation of scanning electron microscopy for investigation on development of tapetum and microspore

绒毡层及小孢子发育研究的扫描电镜样品制备

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

绒毡层细胞在四分体&单核早期发生增生；

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Further observation on tapetum and pollen development in Watermelon

西瓜绒毡层和花粉发育的进一步观察

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The relationship of tapetum with pollen activity and the low rate of reproduction in nature condition were discussed.

本文探讨了绒毡层与花粉活力的关系，以及半夏在自然情况下有性繁殖能力较低的原因。

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

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。

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

药壁的结构特点为一层中层和腺质绒毡层。

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The anther wall is composed of 5-6 layer cells and the tapetum is glandular.

花药壁由5&6层细胞组成，腺质绒毡层。

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The degeneration of tapetum cells was delayed;

绒毡层细胞延缓解体；

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The development of the tapetum with 2-nucleate cells is of the glandular type.

成熟花粉粒为二细胞型。在花粉发育过程中，存在有不同类型的败育现象。

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Hypertrophy and hyperplasia of tapetum at tetrads stage were related to pollen abortion.

四分体时期绒毡层肥大增厚可能与花粉败育有关。

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

成熟花粉粒为二细胞型，绒毡层为分泌绒毡层；

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Because they have what's called tapetum.

因为兔子有所谓的反光组织。

provided by jukuu

During the mitosis of microspore mother cells, the nucleus of tapetum divides into two. The primary sporogenous cells develop into microsporocyte by mitosis. The microsporocyte undergoes simultaneous meiotic division and produces tetrahedral tetrad.

初生造孢细胞经过有丝分裂，形成次生造孢细胞，然后次生造孢细胞发育成小孢子母细胞，小孢子母细胞经过减数分裂形成四分体，胞质分裂为同时型。

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