单词 | cytogamy |
释义 | > as lemmascytogamy cytogamy n. Brit. , U.S. (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 .] ΘΚΠ 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. < as lemmas |
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