pollen tube


nounBotany.
  1. the protoplasmic tube that is extruded from a germinating pollen grain and grows toward the ovule.

Origin of pollen tube

1
First recorded in 1825–35

Words Nearby pollen tube

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use pollen tube in a sentence

  • Each ovule, which is reached by a pollen tube, swells up and becomes a seed.

    Mendelism | Reginald Crundall Punnett

British Dictionary definitions for pollen tube

pollen tube

noun
  1. 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

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for pollen tube

pollen tube

  1. The slender tube that is formed after pollination by division of the tube cell in a pollen grain. The pollen tube penetrates the ovule and releases the male gametes.

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