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embryo sac

  • [植] 胚囊

网络释义专业释义

  [植] 胚囊

...形或T形排成,其中靠近珠孔端的三个细胞相继程序化死亡,仅远离珠孔端的一个具功能的大孢子继续发育,形成单细胞 胚囊 ( embryo sac ),再由单细胞 胚囊 发育 2.

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短语

chick embryo air sac 鸡胚气室

chick embryo amnoitic sac 鸡胚羊膜腔

embryo-sac 胚乳囊

embryo-sac fertility 胚囊育性

embryo-sac mother 胚囊母细胞

embryo-sac cell 胚囊细胞

chick embryo yolk sac 鸡胚卵黄囊

embryo o sac 胚囊

Polygonum type embryo-sac 蓼型胚囊

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·2,447,543篇论文数据,部分数据来源于NoteExpress

 柯林斯英汉双解大词典 

embryo sac

  • 1. 

    N the structure within a plant ovule that contains the egg cell: develops from the megaspore and contains the embryo plant and endosperm after fertilization 胚囊

双语例句

  • Megaspore tetrad is linear. The chalazal megaspore develops into an embryo sac of Polygonum type.

    孢子分体线形, 合点功能大孢子发育成为胚囊

    www.youdict.com

  • Synergid cells Two haploid cells located near the egg cell at the micropylar end of the embryo sac in flowering plants.

    存在于开花植物胚囊内,是位于珠孔端的卵细胞两侧两个单倍体细胞

    danci.911cha.com

  • The results of experiments showed that peroxidase isozymes related closely with the development of macrospore, the formation of embryo sac and the differentiation of stigma mammilliform cell.

    实验结果表明过氧化物酶同工酶大孢子发生胚囊形成以及柱头乳头细胞分化过程有密切关系

    dict.cnki.net

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