tetraspore

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tetraspore
tetraspore Bot. (ˈtɛtrəspɔə(r)) [f. tetra- + spore.] A group (usually) of four asexual spores, resulting from the division of a mother cell, in the Florideæ, a group of Algæ.1857 Berkeley Cryptog. Bot. §88. 108 Tetraspores, mostly immersed in the fronds. 1867 Brande & Cox Dict. Sc., etc. III. 754/2 ... Oxford English Dictionary
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Tetraspore
Tetraspores are red algae spores produced by the tetrasporophytic (diploid) phase in the life history of algae in the Rhodophyta as a result of meiosis. The name is derived from the 4 spores that form after this meiosis, the division is of three kinds: cruciate, zonate and tetrahedral. References Re... wikipedia.org
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tetrasporangium
‖ tetraspoˈrangium Bot. Pl. -ia. [mod.L., f. tetra- + sporangium; or f. tetraspore + Gr. ἀγγεῖον receptacle.] A sporangium producing or containing tetraspores. Rarely anglicized as ˈtetraspoˌrange (Cent. Dict. 1891).1890 Athenæum 21 June 805/2 On the Development of the Tetrasporangia in Rhabdochorto... Oxford English Dictionary
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Red algae
Carpospores may also germinate directly into thalloid gametophytes, or the carposporophytes may produce a tetraspore without going through a (free-living wikipedia.org
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tetra-
tetra- (tɛtrə) before a vowel tetr-, a. Gr. τετρα-, combining form of the numeral τέτταρες, τέτταρα four, forming the first element of many words adapted from existing Greek compounds, and thence used in new analogous formations, mainly scientific and technical. 1. As a general etymological element.... Oxford English Dictionary
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红藻门
果孢子体并不独立生活,只附着在亲本配子体上,并从配子体上吸收养分进行生长,果孢子体成熟后,进行有丝分裂产生果孢子,并从果孢子体释放到水中,附着在某处生长为二倍体的四分孢子体(tetrasporophyte),再进行减数分裂,产生(tetraspore),发育成配子体。 wikipedia.org
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