Expression of Arabidopsis response regulator homologs is induced by cytokinins and nitrate

被引：192

作者：

Taniguchi, M ^{[1
]}

Kiba, T ^{[1
]}

Sakakibara, H ^{[1
]}

Ueguchi, C ^{[1
]}

Mizuno, T ^{[1
]}

Sugiyama, T ^{[1
]}

机构：

[1] Nagoya Univ, Grad Sch Bioagr Sci, Dept Biol Mechanisms & Funct, Nagoya, Aichi 4648601, Japan

来源：

FEBS LETTERS | 1998年 / 429卷 / 03期

关键词：

response regulator; nitrogen; cytokinin; gene expression; two-component system; Arabidopsis thaliana;

D O I：

10.1016/S0014-5793(98)00611-5

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：

We examined cytokinin and nitrate responsiveness in gene expression of five distinct response regulator homologs (ARR3-ARR7) in the leaves of nitrogen-starved Arabidopsis plants. The transcripts accumulated after spraying the shoots with t-zeatin, The induction of accumulation was highly specific for cytokinins. The transcripts also accumulated by supply of nitrate to the culture medium, These findings suggest that ARRs are involved in inorganic nitrogen signal transduction mediated by cytokinin as in the case of ZmCip1, a response regulator homolog recently identified in maize. (C) 1998 Federation of European Biochemical Societies.

引用

页码：259 / 262

页数：4

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