Too SHY 2 repress
作者机构：The University of North Carolina at Chapel HilDepartment of BiologyChapel HillNC27599USA l2Virginia Polytechnic Institute and State UniversitySchool of Plant and EnvironmentalSciences.BlacksburgVA24061USA
出 版 物：《Molecular Plant》 (分子植物（英文版）)
年 卷 期：2024年第17卷第10期
页 面：1496-1497页
核心收录：
学科分类：0710[理学-生物学] 071001[理学-植物学] 07[理学]
基 金：part by funding from the NSF:IOS 2343701toJ.W.R.andIOS2343702toB.O.R.B
摘 要：The hormone auxin regulates many aspects of plant development,in part by regulating transcription(Powers and Strader,2020).Two types of proteins control canonical auxin-regulated transcription:class A auxin response transcription factors(ARFs)bind to and activate promoters of auxin-responsive genes and Aux/IAA proteins interact with ARFs to repress gene *** angiosperms,multiple paralogous genes encode both ARF and Aux/IAA *** in expression patterns or biochemical properties among these paralogs likely underlie diverse auxin response characteristics in different cellular *** a recent issue of Molecular Plant,Cho et al.(2024)showed that a single amino acid difference between two Aux/IAA proteins confers strikingly divergent effects on auxinregulated root hair growth(Cho et al.,2024).In particular,whereas the Aux/IAA protein AXR2/IAA7 always represses auxin response and root hair growth,SHY2/IAA3 can act bimodally to either activate or repress the auxin response,depending on its level relative to other Aux/IAA proteins.
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