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单词 cytogamy
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cytogamy
cytogamy n.
Brit. /sʌɪˈtɒɡəmi/
,
U.S. /saɪˈtɑɡəmi/
(a) the union of cells; esp. plasmogamy; (b) a kind of reproduction that occurs in certain ciliate protozoans, in which two individuals undergo autogamy while paired with each other. [In sense (a) after German Cytogamie (1898 in the source of which quot. 1899 is a summary); compare earlier karyogamy n. at karyo- comb. form .]
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the world > life > biology > biological processes > procreation or reproduction > types of reproduction > [noun] > others
adosculation1682
autogeny?1818
gemmation1836
parthenogenesis1849
virgin production1849
rejuvenescence1853
agamogenesis1857
monogeny1857
autogenesis1858
homogenesis1858
proliferation1864
monogenesis1866
swarming1867
paedogenesis1870
monogony1873
virginal generation1879
division1880
monogenesy1890
parthenogeny1890
anisogamy1891
isogamy1891
paragamy1891
separation1891
paedogenesis1892
parthenism1892
heterogamy1894
thelytoky1895
flagellation1898
cytogamy1899
pseudogamy1900
tychoparthenogenesis1900
syngamy1904
pseudogamy1907
ectogenesis1909
paedogamy1910
apomixis1913
progenesis1934
agamospermy1939
mixis1944
somatogamy1949
decapitation-
the world > life > biology > biological processes > cellular processes > [noun] > fusion
nuclear fusion1887
karyogamy1891
autogamy1898
chromidiogamy1912
plasmogamy1912
cytogamy1939
1899 Zool. Rec. 35 xviii. 14 Cytogamy and reproduction in the Foraminifera.
1906 M. Hartog in Cambr. Nat. Hist. I. i. 33 This process [sc. syngamy] is called also ‘conjugation’ or ‘cytogamy’.
1939 R. Wichterman in Nature 15 July 123/1 I am therefore proposing a new term, cytogamy, for this phenomenon as distinct from autogamy in single individuals and true conjugation involving a nuclear transfer in joined pairs.
1961 D. L. Mackinnon & R. S. J. Hawes Introd. Study Protozoa iv. 292 The life-cycle of Paramecium is complicated. It consists of periods of growth interrupted by binary fission, which is its only means of multiplication, and periodic recourse to the curious sexual processes of conjugation, autogamy, and cytogamy.
1998 L. Margulis & K. V. Schwartz Five Kingdoms (ed. 3) iv. 350 Conjugation always consists of at least two processes: hyphal (cytoplasmic fusion, or cytogamy) and nuclear fusion, or karyogamy.
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