pollen tube

noun Botany.

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

Origin of pollen tube

First recorded in 1825–35

Words nearby pollen tube

poll end, pollen grain, pollen mother cell, pollenosis, pollen sac, pollen tube, pollera, pollero, poll evil, pollex, pollice verso

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for pollen tube

The pollen-tube does not penetrate the ovule through the micropyle but enters at the opposite end—the chalaza.
Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 4|Various
The latter ultimately divides in the apex of the pollen-tube into two non-motile generative cells.
Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 7|Various
The male-cells are carried to their destination in the tip of the pollen-tube.
Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1|Various
It is down these style-branches that the pollen-tube passes on its way to the ovules or embryo seeds.
The Apple-Tree|L. H. Bailey

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

British Dictionary definitions for pollen tube

pollen tube

noun

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

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.

单词	pollen tube
释义	pollen tube noun Botany. the protoplasmic tube that is extruded from a germinating pollen grain and grows toward the ovule. Origin of pollen tube First recorded in 1825–35 Words nearby pollen tube poll end, pollen grain, pollen mother cell, pollenosis, pollen sac, pollen tube, pollera, pollero, poll evil, pollex, pollice verso Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for pollen tube The pollen-tube does not penetrate the ovule through the micropyle but enters at the opposite end—the chalaza. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 4\|Various The latter ultimately divides in the apex of the pollen-tube into two non-motile generative cells. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 7\|Various The male-cells are carried to their destination in the tip of the pollen-tube. Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1\|Various It is down these style-branches that the pollen-tube passes on its way to the ovules or embryo seeds. The Apple-Tree\|L. H. Bailey 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 British Dictionary definitions for pollen tube pollen tube noun 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 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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