以下为句子列表：
英文: The ultrastructural changes of microspore mother cells and tapetal cells in anthers during the abortion of male sterile cotton Kang Awere observed by comparing with its maintainer Kang Band by using transmission electron microscopy.
中文: 摘要以棉花细胞质雄性不育系“抗A”为材料，以其同核异质保持系“抗B”为对照，用透射电子显微镜技术，观察了不育系败育过程中小抱子母细胞与绒毡层细胞超微结构的变化。
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英文: When microspore mother cell (MMC) preparing meiosis, calcium precipitates appeared in the cytoplasm of tapetal cells and callus wall surrounding MMC.
中文: 当花粉母细胞进行减数分裂时，花药中的钙颗粒进一步增加，尤其是在小孢子母细胞的胼胝质壁中。
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英文: The results of investigations show that there is no notable differences in the development of the tapetal cells and pollen walls between bisexual and unisexual flowers. But the intine of the pollen grain is thicker.
中文: 果表明,两种不同类型的花粉在绒毡层和细胞壁的发育方面没有明显差别,但两性花的花粉内壁较厚,细胞器和淀粉的贮存明显不足,且缺乏蔗糖等化合物,氨基酸的种类也较可育花粉少.
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英文: Ultrastructural Changes in the Development of Tapetal Cells of Euryale ferox
中文: 芡实绒毡层细胞发育的超微结构变化
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