Franco consists of three layers: the epidermis, the middle layer and the tapetum.
Franco]小孢子囊壁包括3層細胞: 表皮 、 中層和絨氈層.
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The anther is tetrasporangiate and glandular tapetum.
雄蕊花藥四室,腺質(zhì)絨氈層.
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The middle layer and the tapetum cells are totally absorbed as nutrient at last.
中層和絨氈層細胞最終作為營養(yǎng)被全部吸收利用.
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The development of anther wall belongs to the monocotyledonous type, and the tapetum is glander tapetum.
花藥壁發(fā)育為單子葉型, 絨氈層為腺質(zhì)型.
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Male - sterility mainly results from the abnormality of mesospore, tapetum tissue and vascular bundle.
中層組織 、 絨氈層組織及藥隔維管束異常均是雄性敗育的因素.
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The tapetum begins to vary at the stage of tetrad with the cytoplasm anther cell.
小孢子孢原為多細胞,小孢子母細胞減數(shù)分裂產(chǎn)生四面體型的小孢子四分體.
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