FORMATION AND FATE OF EXTRANUCLEAR CHROMATIN BODIES IN TETRAHYMENA

被引：5

作者：

SALAMONE, MF

NACHTWEY, DS

机构：

[1] OREGON STATE UNIV,DEPT ZOOL,CORVALLIS,OR 97331

[2] OREGON STATE UNIV,DEPT GEN SCI,CORVALLIS,OR 97331

来源：

JOURNAL OF PROTOZOOLOGY | 1979年 / 26卷 / 02期

关键词：

Index Key Words: Tetrahymena pyriformis strain GL‐I; extranuclear chromatin bodies; cell cycle;

D O I：

10.1111/j.1550-7408.1979.tb02765.x

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

The fate of extranuclear chromatin bodies (ECBs) formed by exclusion of macronuclear material at the time of karyokinesis was followed quantitatively in Tetrahymena pyriformis strain GL‐I. In a logarithmic growth phase culture, 51% of the dividing cells produced one (43%) or more (8%) ECBs. Most of these gradually disappear before the next cell division, but ˜ 13% are retained and carried into subsequent cell cycles. The random distribution of ECBs into anterior or posterior daughter cells, their staining and morphological characteristics, and their rapid loss in cells in starvation medium, all indicate that ECBs play no more of a role in cellular activity than that of an internally produced food vacuole. Copyright © 1979, Wiley Blackwell. All rights reserved

引用

页码：227 / 231

页数：5

共 22 条

[1]

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