单词 | isogamy |
释义 | isogamyn. Biology. The union of two equal and similar ‘gametes’ or cells in reproduction, as in conjugation. 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- 1891 M. Hartog in Nature 17 Sept. 484 Isogamy, the union of gametes undistinguishable in size, form, and behaviour. 1935 F. E. Fritsch Struct. & Reprod. Algae I. 43 Isogamy (i.e. the fusion of morphologically identical gametes) is very usually..combined with an absence of differentiated organs for the production of the sexual cells or gametes. 1964 E. J. H. Corner Life of Plants vi. 85 The process is called isogamy or the union of outwardly similar gametes. Derivatives isogamete n. /aɪˈsɒɡəmiːt/ [ < Greek γαμέτης, γαμετή spouse] each of the two uniting cells, in isogamy. ΘΚΠ the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > gametes gamete1878 zoogamete1879 planogamete1880 macrogamete1888 microgamete1888 isogamete1891 megagamete1891 oogamete1891 progamete1892 heterogamete1897 ovum1900 non-crossover1914 merogamete1925 hologamete1926 anisogamete- 1891 M. Hartog in Nature 17 Sept. 484 True Parthenogenesis..may occur in the case of (1) Isogametes (2) Anisogametes (male and female); (3) Oogametes. 1935 F. E. Fritsch Struct. & Reprod. Algae I. 46 Isogametes are commonly positively phototactic. 1952 C. J. Alexopoulos Introd. Mycol. i. 17 We use the terms isogametangia and isogametes..to designate gametangia and gametes which are morphologically indistinguishable. isogamous adj. /aɪˈsɒɡəməs/ characterized by isogamy. ΘΚΠ the world > life > biology > biological processes > procreation or reproduction > types of reproduction > [adjective] > others gemmiparous1793 gemmiferous1804 agamic1816 zoogenic1842 agamogenetic1858 autogenetic1859 parthenogenetic1860 parthenogenous1869 unsexual1873 monogenous1874 monogonic1876 monogonous1876 arrenotokous1877 gemmative1877 thelytokous1877 parthenogenic1878 heteroblastic1888 blastogenic1889 isogamous1889 paedogenetic1889 monogenic1890 anisogamous1891 monogenetic1900 paedogamous1912 apomictic1913 cytogamous1918 ectogenetic1923 pseudogamous1932 agamospermous1933 impaternate1934 subsexual1937 mictic1950 somatogamous1950 zygogenetic1950 1889 A. W. Bennett & G. R. M. Murray Handbk. Cryptogamic Bot. 272 The only known sexual mode of reproduction [in the Confervoideae] is an isogamous one between two masses of protoplasm. 1891 M. Hartog in Nature 17 Sept. 484 The union may be isogamous or anisogamous. 1938 G. M. Smith Cryptogamic Bot. I. ii. 21 All green algae in which both gametes are nonflagellated..are isogamous. 1968 P. R. Bell & C. L. F. Woodcock Diversity Green Plants ii. 39 The gametes [of Stigeoclonium] are noticeably smaller than the zoospores, and copulation is isogamous. This entry has not yet been fully updated (first published 1900; most recently modified version published online June 2018). < n.1889 |
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