pollen tube
the protoplasmic tube that is extruded from a germinating pollen grain and grows toward the ovule.
Origin of pollen tube
1Words 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
If it does, the silk grows a pollen tube, enabling the male genes to travel towards the ovule and fertilize it.
The bizarre botany that makes corn a fruit, a grain, and also (kind of) a vegetable | empire | July 8, 2021 | Popular-ScienceAnd he observed the extension of the embryo-sacs up the style and the union of the pollen tube with the tip of the embryo-sac.
I spent pretty well the whole day over them, and got three, and several in the pollen tube, not yet quite ripe.
A Journal from Japan | Marie Carmichael StopesThis embryo is the product of fertilization of a germinal vesicle by a pollen tube.
The branches of the stigma are very thin, formed apparently of three rows of cells of hardly greater diameter than pollen-tube.
More Letters of Charles Darwin Volume II | Charles Darwin
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
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
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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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