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单词 dictyate
释义

dictyateadj.n.

Brit. /ˈdɪktɪeɪt/, /ˈdɪktɪət/, U.S. /ˈdɪktieɪt/, /ˈdɪktiət/
Origin: A borrowing from Greek, combined with an English element; modelled on a French lexical item. Etymons: Greek δίκτυον , -ate suffix2.
Etymology: < ancient Greek δίκτυον net (see dictyo- comb. form) + -ate suffix2, after French dictyé reticular (H. von Winiwarter 1900, in Arch. de biol. 17 70). With use as noun compare dictyotene 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).
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adj.n.1905
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更新时间:2024/11/11 4:02:00