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单词 sporophyte
释义

sporophyte

[ spawr-uh-fahyt, spohr- ]
/ ˈspɔr əˌfaɪt, ˈspoʊr- /

noun Botany.

the form of a plant in the alternation of generations that produces asexual spores.
Compare gametophyte.

Origin of sporophyte

First recorded in 1885–90; sporo- + -phyte

OTHER WORDS FROM sporophyte

spo·ro·phyt·ic [spawr-uh-fit-ik, spohr-], /ˌspɔr əˈfɪt ɪk, ˌspoʊr-/, adjective

Words nearby sporophyte

sporogonium, sporogony, sporont, sporophore, sporophyll, sporophyte, sporoplasm, sporopollenin, Sporothrix, sporotrichosis, -sporous
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for sporophyte

  • In contrast to the sexual generation this stage is called the spore-bearing generation (sporogonium, sporophyte).

    Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3|Various
  • Thus in Pellia the nuclei of the gametophyte have eight chromosomes and those of the sporophyte sixteen.

    Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3|Various
  • H, Sporophyte bearing the single sporangium on its upper surface.

    Encyclopaedia Britannica, 11th Edition, Volume 17, Slice 2|Various
  • The sporophyte may be considered to begin at the stage of nuclear association and end with the nuclear reduction in the basidium.

    Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3|Various

British Dictionary definitions for sporophyte

sporophyte
/ (ˈspɔːrəʊˌfaɪt, ˈspɒ-) /

noun

the diploid form of plants that have alternation of generations. It develops from a zygote and produces asexual sporesCompare gametophyte

Derived forms of sporophyte

sporophytic (ˌspɔːrəˈfɪtɪk, ˌspɒ-), adjective
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 sporophyte

sporophyte
[ spôrə-fīt′ ]

Among organisms which display an alternation of generations (such as plants, fungi, and certain algae), the individual diploid organism that produces spores. A sporophyte develops from an embryo resulting from the union of two gametes. Each of its cells has two sets of chromosomes, as opposed to the haploid gametophyte generation. See more at alternation of generations gametophyte.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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更新时间:2024/11/13 20:37:44