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单词 polyspore
释义

polysporen.adj.

Brit. /ˈpɒlɪspɔː/, U.S. /ˈpɑliˌspɔr/
Origin: Formed within English, by compounding. Etymons: poly- comb. form, spore n.
Etymology: < poly- comb. form + spore n.; compare ancient Greek πολύσπορος (see polysporous adj.). Compare polysporic adj., polysporous adj. With use as adjective compare earlier monospore adj.
Mycology and Botany.
A. n.
1. = polysporangium n. Obsolete.
ΘΚΠ
the world > plants > part of plant > reproductive part(s) > spore or sporule > [noun] > parts of or related to > spore-case
perithecium1800
conceptacle1819
sporangium1821
sporidium1821
receptacle1824
sporangiolum1824
spore-case1836
perispore1851
polyspore1855
perisporangium1856
sporange1857
thalamium1861
sporidiole1863
theke1872
macrosporange1882
polysporangium1890
1855 J. B. Sanderson in Todd's Cycl. Anat. & Physiol. V. 221/1 The term Polyspore is usually applied..[to] a gelatinous..pericarp or conceptacle.
1867 J. Hogg Microscope (ed. 6) ii. i. 272 The first form to which the term polyspore has been applied, is that of a gelatinous or membranous pericarp or conceptacle, in which an indefinite number of sporidia are contained.
2. A group of more than four spores, esp. in certain red algae.
ΚΠ
1881 Amer. Naturalist 15 312 We have..in the Ascomycetes (including Lichenes), conidiospores, stylospores, ascospores, polyspores, and merispores.
1955 G. M. Smith Cryptogamic Bot. (ed. 2) I. viii. 307 A tetrasporophyte usually produces tetrasporangia containing four tetraspores; but it may..produce polysporangia containing polyspores in multiples of four.
1991 Indian Jrnl. Marine Sci. 20 61 Number and distribution of stichidia, sporogenous tissue and shedding of 4 types of spores (mono-, bi-, tetra-, and polyspores) were measured.
B. adj.
Of or derived from many spores; = polysporous adj.
ΘΚΠ
the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [adjective] > spore
formalc1400
sporular1819
zoosporous1845
zoosporic1854
polysporous1858
polyspored1882
sporulating1897
sporulated1898
polyzoic1901
zygosporic1906
polyspore1959
propagular1967
1959 Science 6 Nov. 1251/1 The fungus, taken from a pure polyspore culture, was inoculated.
1984 Mycologia 76 175 Mono- and polyspore isolates show different growth characters and sizes of chlamydospores.
1993 Mycol. Res. 97 139/1 Monospore culture on medium B did not form sectors.
This entry has been updated (OED Third Edition, September 2006; most recently modified version published online June 2022).
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n.adj.1855
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