pollen tube
noun /ˈpɒlən tjuːb/
/ˈpɑːlən tuːb/
(biology)- a tube that grows when pollen lands on the stigma (= a part of the female organ) of a flower to carry the male cell to the ovule (= the part that contains the female cell)
| 单词 | pollen tube |
| 释义 | pollen tubenoun /ˈpɒlən tjuːb/ /ˈpɑːlən tuːb/ (biology)
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