micropyle

英語（米国） (en-US) 英語（イギリス） (en-GB)

IPA（発音記号）

/ˈmaɪ.kɹəʊˌpaɪl/

名詞

(botany) In seed-bearing plants, a small opening in the integuments of the ovule through which sperm are able to access the ovum.

日本語の意味

微小孔：種子植物において、胚珠の被覆組織に形成される非常に小さな開口部で、精子が卵細胞に到達するための通路となる部分です。

英語の意味

(botany) In seed-bearing plants, a small opening in the integuments of the ovule through which sperm are able to access the ovum.

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During fertilization, the pollen tube navigated toward the micropyle to deliver the sperm cells to the ovule.

受精の際、花粉管は精子細胞を卵に届けるため、胚珠の外皮にある小さな開口部（珠孔）へ向かって進んだ。

詳細

意味（1）

(botany) In seed-bearing plants, a small opening in the integuments of the ovule through which sperm are able to access the ovum.

意味（2）

(zoology) The hilum of an ovum at the point of attachment to the ovary; any opening in the coverings of an ovum by which spermatozoa may find entrance.

micropyles （ plural ）