pollen tube(redirected from Pollen tubes)
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A slender tube that is formed by a pollen grain of a seed plant and penetrates the ovule, where it releases the male gametes.
(Botany) a hollow tubular outgrowth that develops from a pollen grain after pollination, grows down the style to the ovule, and conveys male gametes to the egg cell
the tube that forms from a germinating pollen grain and grows toward the ovule, carrying male gametes with it.
The slender tube formed by the pollen grain that penetrates an ovule after pollination and releases the male gametes.
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|Noun||1.||pollen tube - (botany) a slender tubular outgrowth from a pollen grain when deposited on the stigma for a flower; it penetrates the style and conveys the male gametes to the ovule|