单词 | dictyate |
释义 | dictyateadj.n. Cell Biology. A. adj. Designating a late stage of meiotic prophase in the oocytes of mammals and certain other organisms, at which the nucleus has a reticular pattern of chromatin.Mammalian oocytes remain in the dictyate stage from the late fetal period until ovulation. ΘΚΠ the world > life > biology > biological processes > genetic activity > [adjective] > stages of mitosis or meiosis homotypical1870 heterotypical1888 homoeotypical1888 heterotypic1889 homoeotypic1889 skein1889 heterotype1895 homotype1895 synaptic1895 synaptenic1900 presynaptic1903 homotypic1904 dictyate1905 post-meiotic1905 premeiotic1905 telophasic1907 postsynaptic1909 metaphase1912 prophasic1912 telosynaptic1912 interkinetic1927 synapsed1931 synizetic1931 interphasic1948 1905 Brit. Med. Jrnl. 1 July 18/2 Final or dictyate condition of the primordial ovum where the chromatin is arranged in a more or less reticular form. 1927 Proc. Royal Soc. B. 101 398 Many of the nuclei are diplotene, but the majority are already dictyate. 1962 Internat. Jrnl. Appl. Radiation & Isotopes 13 158/1 Oocytes in the dictyate stage are extraordinarily sensitive. 2003 Philos. Trans. (Royal Soc.) B. 358 1413/1 Maternal imprints are established in growing dictyate oocytes, which are arrested late in the prophase of meiosis I. B. n. The dictyate stage of meiosis; = dictyotene n. ΘΚΠ the world > life > biology > biological processes > genetic activity > [noun] > stages of mitosis or meiosis resting stage1810 prophase1884 anaphase1887 metaphase1887 synapsis1895 telophase1895 maturation division1896 postsynapsis1898 strepsinema1900 synizesis1905 interkinesis1906 pachynema1909 telosynapsis1909 leptonema1911 metasyndesis1911 strepsitene1911 zygonema1911 zygotene1911 leptotene1912 pachytene1912 interphase1913 telosyndesis1920 prometaphase1931 dictyotene1957 dictyate1958 1958 Radiation Res. 9 175 The bulk of the germ cells present are primary oöcytes in dictyate. 1983 P. M. Wassarman in J. F. Hartmann Mechanism & Control Animal Fertilization i. 11 The oocytes undergo nuclear progression from dictyate of the first meiotic prophase..to metaphase II. 2008 Trends in Genetics 24 88/1 On completion of recombination, the oocyte progresses to diplotene of prophase and enters a protracted arrest stage known as dictyate. This is a new entry (OED Third Edition, November 2010; most recently modified version published online March 2022). < adj.n.1905 |
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