The nucellus is usually degraded and absorbed as the endosperm develops.
珠心通常在胚乳發(fā)育時(shí)被分解和吸收.
辭典例句
Food materials may be stored in a special tissue derived from the nucellus, called the perisperm.
營(yíng)養(yǎng)物質(zhì)可以貯藏于由珠心產(chǎn)生的一種特殊組織, 叫外胚乳.
辭典例句
The cells of the integument and nucellus of some plants form perfectly normal embryos.
某些植物的珠被和珠心細(xì)胞形成完全正常的胚.
辭典例句
The ovule is bitegminous archesporial cell locates under the nucellus epidermis, which develops into functional megasporocyte.
孢原細(xì)胞位于珠心表皮之下, 直接起大孢子母細(xì)胞的功能.
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