Circadian-regulated expression of a nuclear-encoded plastid σ factor gene (sigA) in wheat seedlings

被引：34

作者：

Morikawa, K ^{[1
]}

Ito, S ^{[1
]}

Tsunoyama, Y ^{[1
]}

Nakahira, Y ^{[1
]}

Shiina, T ^{[1
]}

Toyoshima, Y ^{[1
]}

机构：

[1] Kyoto Univ, Grad Sch Human & Environm Studies, Sakyo Ku, Kyoto 6068501, Japan

来源：

FEBS LETTERS | 1999年 / 451卷 / 03期

基金：

日本学术振兴会;

关键词：

chloroplast RNA polymerase; circadian clock; psbD light-responsive promotor; psbD-C operon; sigma factor;

D O I：

10.1016/S0014-5793(99)00593-1

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The activity of a light-responsive psbD promoter in plastids is known to be regulated by a circadian clock, However, the mechanism of the circadian regulation of the psbD light-responsive promotor, which is recognized by an Escherichia coli-type RNA polymerase, is not yet known. We examined the time course of mRNA accumulation of two E. coli-type RNA polymerase subunit genes, sigA and rpoA, under a continuous light condition after 12 h light/12 h dark entrainment. Accumulation of the sigA mRNA was found to be regulated by a circadian clock, while rpoA mRNA did not show any significant oscillation throughout the experiment. (C) 1999 Federation of European Biochemical Societies.

引用

页码：275 / 278

页数：4

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