[嗜热栖热四膜虫（小核口型）细胞周期中巨核DNA含量的调控]
[Regulation of macronuclear DNA content during the cell cycle of the ciliate Tetrahymena paravorax (microstome form)].
作者信息
Méténier G
出版信息
C R Seances Acad Sci D. 1979 Sep 24;289(5):497-500.
PMID:117942
Abstract
Results of autoradiographic studies of 3H-thymidine incorporation support a model of macronuclear DNA content regulation involving an action upon the extremes of DNA content: elimination of S phase in cells with large DNA content, additional S phase in cells with DNA content. The frequency of each of these phenomena is about 20%: the inequality of frequencies obtained with the two types of sister cells (proters and opisthes) is relatable to the asymetry of cytodieresis observed in this ciliate.
摘要
对3H-胸腺嘧啶核苷掺入进行放射自显影研究的结果支持了一种大核DNA含量调节模型，该模型涉及对DNA含量极端值的作用：DNA含量大的细胞中S期消除，DNA含量小的细胞中额外的S期。这些现象中每种现象的频率约为20%：用两种类型的姐妹细胞（前仔虫和后仔虫）获得的频率不平等与在这种纤毛虫中观察到的胞质分裂不对称有关。
相似文献
1
[Regulation of macronuclear DNA content during the cell cycle of the ciliate Tetrahymena paravorax (microstome form)].
C R Seances Acad Sci D. 1979 Sep 24;289(5):497-500.
2
[Timing of macronuclear DNA synthesis in carnivorous forms of Tetrahymena paravorax].
Eur J Cell Biol. 1981 Jun;24(2):252-8.
3
DNA elimination and its relation to quantities in the macronucleus of Tetrahymena.
Dev Genet. 1992;13(2):103-10. doi: 10.1002/dvg.1020130203.
4
Life cycle variation and regulation of macronuclear DNA content in Tetrahymena thermophila.
Chromosoma. 1978 Oct 20;69(1):1-19. doi: 10.1007/BF00327377.
5
The action of 5-amino uracil on log growth and division-synchronized Tetrahymena.
Cell Tissue Kinet. 1983 May;16(3):285-301.
6
Form and pattern in ciliated protozoa: analysis of a genic mutant with altered cell shape in Tetrahymena pyriformis, Syngen 1.
J Exp Zool. 1975 May;192(2):237-58. doi: 10.1002/jez.1401920214.
7
Cell division induced by mechanical stimulation in starved Tetrahymena thermophila: cell cycle without synthesis of macronuclear DNA.
Cell Biol Int. 2004;28(7):503-9. doi: 10.1016/j.cellbi.2004.04.004.
8
9
Chemo-accumulation without changes in membrane potential in the microstome form of the ciliate Tetrahymena vorax.
J Exp Biol. 2010 Dec 1;213(Pt 23):3980-7. doi: 10.1242/jeb.042903.
10
Cell-cycle regulation as a mechanism for targeting proteins to specific DNA sequences in Tetrahymena thermophila.
Proc Natl Acad Sci U S A. 1988 Apr;85(7):2205-9. doi: 10.1073/pnas.85.7.2205.
Zotero 插件