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      ABA-dependent and ABA-independent signaling in response to osmotic stress in plants.

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          Abstract

          Plants have adaptive robustness to osmotic stresses such as drought and high salinity. Numerous genes functioning in stress response and tolerance are induced under osmotic conditions in diverse plants. Various signaling proteins, such as transcription factors, protein kinases and phosphatases, play signal transduction roles during plant adaptation to osmotic stress, with involvement ranging from stress signal perception to stress-responsive gene expression. Recent progress has been made in analyzing the complex cascades of gene expression during osmotic stress response, and especially in identifying specificity and crosstalk in abscisic acid (ABA)-dependent and ABA-independent signaling pathways. In this review, we highlight transcriptional regulation of gene expression governed by two key transcription factors: AREB/ABFs and DREB2A operating respectively in ABA-dependent and ABA-independent signaling pathways.

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          Author and article information

          Journal
          Curr Opin Plant Biol
          Current opinion in plant biology
          Elsevier BV
          1879-0356
          1369-5266
          Oct 2014
          : 21
          Affiliations
          [1 ] Laboratory of Plant Molecular Physiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan.
          [2 ] Laboratory of Plant Molecular Physiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan. Electronic address: akys@mail.ecc.u-tokyo.ac.jp.
          Article
          S1369-5266(14)00106-X
          10.1016/j.pbi.2014.07.009
          25104049
          10b8dd4d-97ca-40fe-ba57-0dc9c7f94a34
          Copyright © 2014 Elsevier Ltd. All rights reserved.
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