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Entry URI http://metadb.riken.jp/db/SciNetS_ria224i/cria224u4ria224u17202180i
Entry name Iwama Ayako et al. 2007 Feb. Plant Cell Physiol. 48(2):375-80.
Title AHK5 histidine kinase regulates root elongation through an ETR1-dependent abscisic acid and ethylene signaling pathway in Arabidopsis thaliana.
Authors Iwama Ayako|Kakimoto Tatsuo|Kato Tomohiko|Mizuno Takeshi|Nagatani Akira|Sakakibara Hitoshi|Sato Shusei|Tabata Satoshi|Tanaka Yasushi|Yamashino Takafumi
Abstract The Arabidopsis thaliana genome encodes a small family of histidine (His) protein kinases, some of which have redundant functions as ethylene receptors, whereas others serve as cytokinin receptors. The most poorly characterized of these is authentic histidine kinase 5 (AHK5; also known as cytokinin-independent 2, CKI2). Here we characterize three independent ahk5 mutants, and show that they have a common phenotype. Our results suggest that AHK5 His-kinase acts as a negative regulator in the signaling pathway in which ethylene and ABA inhibit the root elongation through ETR1 (an ethylene receptor).
Pubmed ID 17202180
Journal Plant & cell physiology
Volume 48
Issue 2
Pages 375-80
Publication date 2007 Feb
Num of phenotype gene 0