PMID: 15388974Sep 25, 2004Paper

Rapid response of Arabidopsis T87 cultured cells to cytokinin through His-to-Asp phosphorelay signal transduction

Bioscience, Biotechnology, and Biochemistry
Hisami YamadaTakeshi Mizuno

Abstract

According to the current consistent model for the higher plant Arabidopsis thaliana, the scheme for an immediate early response to the plant hormone cytokinin can be formulated as Arabidopsis histidine kinase (AHK) cytokinin receptor-mediated His --> Asp phosphorelay signal transduction. Nonetheless, clarification of the comprehensive picture of cytokinin-mediated signal transduction in this higher plant is at a very early stage. As a new approach to this end, we studied whether or not a certain Arabidopsis cell line (named T87) would be versatile for such work on cytokinin signal transduction. We show that T87 cells had the ability to respond to cytokinin, displaying the immediate early induction of type-A Arabidopsis response regulator (ARR) family genes (e.g., ARR6) at the transcriptional level. This event was further confirmed by employing the stable transgenic lines of T87 cells with a set of ARR::LUC reporter transgenes. We also show that T87 cells had the ability to respond to auxin when the expression of a set of AUX/IAA genes (e.g., IAA5) was examined. As postulated for intact plants, in T87 cells too, the induction of IAA5 by auxin was selectively inhibited in the presence of a proteasome inhibitor, while the inductio...Continue Reading

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Citations

Dec 27, 2005·Bioscience, Biotechnology, and Biochemistry·Takeshi Mizuno
Feb 21, 2006·Plant Physiology·Melissa S PischkeMichael R Sussman
Nov 26, 2010·The Journal of Biological Chemistry·Maria BucholcGrażyna Dobrowolska
Jul 19, 2011·Current Opinion in Plant Biology·Iris Meier, David E Somers
Feb 9, 2007·The Plant Journal : for Cell and Molecular Biology·Hisae KojimaKenzo Nakamura
Apr 26, 2013·The FEBS Journal·Hanayo Ueoka-NakanishiToru Hisabori
Feb 9, 2010·The Plant Journal : for Cell and Molecular Biology·Jayson A PunwaniJoseph J Kieber
Jan 28, 2014·The Arabidopsis Book·Joseph J Kieber, G Eric Schaller
Aug 2, 2005·Current Opinion in Plant Biology·Fernando J Ferreira, Joseph J Kieber
Apr 8, 2015·BMC Plant Biology·Tomasz BieluszewskiJan Sadowski
May 21, 2010·Plant Signaling & Behavior·Jayson A Punwani, Joseph J Kieber
Jan 1, 2008·The Arabidopsis Book·G Eric SchallerShin-Han Shiu
Jan 1, 2020·Biotechnology for Biofuels·Christine A Ondzighi-AssoumeC Neal Stewart
Jul 19, 2020·International Journal of Molecular Sciences·Maria KlimeckaGrażyna Dobrowolska
Aug 14, 2012·Plant Physiology·Anna KulikGrazyna Dobrowolska

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