bn:00063374n
Noun Concept
Categories: Botany, All articles with unsourced statements, Pollination, Plant physiology, All articles needing additional references
EN
pollen tube  GO:0090406  Pollen-tube  pollen tubes
EN
(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 WordNet 3.0
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EN
(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 WordNet 3.0 & Open English WordNet
A pollen tube is a tubular structure produced by the male gametophyte of seed plants when it germinates. Wikipedia
The tube that develops from the wall of a pollen grain and, in seed plants, provides a passage through which the male nuclei reach the embryo sac to effect fertilization. Wiktionary
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