chalaza中文,chalaza的意思,chalaza翻译及用法

2025-10-31 03:55 浏览次数 8

chalaza

英[kə'leɪzə]美[kə'leɪzə]

n. [植] 合点;卵带;[细胞] 卵黄系带

chalaza 英语释义

英语释义

  • one of two spiral bands of tissue connecting the egg yolk to the enclosing membrane at either end of the shell
  • basal part of a plant ovule opposite the micropyle; where integument and nucellus are joined

chalaza 例句

英汉例句

  • When ovule orientation is orthotropous the chalaza corresponds to the point where the funicle is attached but in anatropous and campylotropous ovules the chalaza is some distance from the funicle .

    当胚珠的方向是直生胚珠时,合点和珠柄连成一条直线,当胚珠是倒生胚珠或弯生胚珠时,合点和珠柄之间有一定的距离。

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