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Plant Cell Reports

, Volume 32, Issue 7, pp 959–970 | Cite as

ABA signaling in stress-response and seed development

Review

Abstract

Key message

We review the recent progress on ABA signaling, especially ABA signaling for ABA-dependent gene expression, including the AREB/ABF regulon, SnRK2 protein kinase, 2C-type protein phosphatases and ABA receptors.

Abstract

Drought negatively impacts plant growth and the productivity of crops. Drought causes osmotic stress to organisms, and the osmotic stress causes dehydration in plant cells. Abscisic acid (ABA) is produced under osmotic stress conditions, and it plays an important role in the stress response and tolerance of plants. ABA regulates many genes under osmotic stress conditions. It also regulates gene expression during seed development and germination. The ABA-responsive element (ABRE) is the major cis-element for ABA-responsive gene expression. ABRE-binding protein (AREB)/ABRE-binding factor (ABF) transcription factors (TFs) regulate ABRE-dependent gene expression. Other TFs are also involved in ABA-responsive gene expression. SNF1-related protein kinases 2 are the key regulators of ABA signaling including the AREB/ABF regulon. Recently, ABA receptors and group A 2C-type protein phosphatases were shown to govern the ABA signaling pathway. Moreover, recent studies have suggested that there are interactions between the major ABA signaling pathway and other signaling factors in stress-response and seed development. The control of the expression of ABA signaling factors may improve tolerance to environmental stresses.

Keywords

ABA Transcription Protein phosphorylation Signal transduction Abiotic stress Seed development 

Abbreviations

ABA

Abscisic acid

ABC transporter

ATP-binding cassette transporter

ABI1/2/3/4/5

ABA insensitive 1/2/3/4/5

ABRE

ABA-responsive element

AHG1/3

ABA hypersensitive germination 1/3

AP2/ERF

APETALA 2/ethylene-responsive element binding factor

AREB

ABRE-binding protein

CRT

C-repeat

CBF

CRT binding factor

CE

Coupling element

ChIP

Chromatin immunoprecipitation

CPK

Calcium-dependent protein kinase

DRE

Dehydration-responsive element

DREB

DRE-binding protein

GA

Gibberellin

HAB1/2

Homology to ABA 1/2

HSP

Heat shock protein

JA

Jasmonic acid

LEA

Late embryogenesis abundant

NAC

NAM, ATAF, and CUC

PYR1

Pyrabactin resistance 1

PYL

PYR1-like

SnRK2

SNF1-related protein kinase 2

TF

Transcription factor

PP2C

2C-type protein phosphatase

RCAR1

Regulatory component of ABA receptor 1

ROS

Reactive oxygen species

Notes

Acknowledgments

We thank Dr. Maki Katsuhara, Okayama University, Japan and Dr. Satoshi Tobita of JIRCAS for helpful comments. We thank Masami Toyoshima for skillful editorial assistance. Research in our laboratory was supported by the Program for Promotion of Basic and Applied Researches for Innovations in Bio-oriented Industry (BRAIN); the Ministry of Agriculture, Forestry and Fisheries (MAFF); the Science and Technology Research Partnership for Sustainable Development (SATREPS) of the Japan Science and Technology Agency (JST)/Japan International Cooperation Agency (JICA); Grants-in-Aid for Scientific Research by the Ministry of Education, Culture, Sports, Science and Technology (MEXT) and the Japan Society for the Promotion of Science (JSPS).

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Biological Resources and Post-harvest DivisionJapan International Research Center for Agricultural Sciences (JIRCAS)TsukubaJapan
  2. 2.Laboratory of Plant Molecular Physiology, Graduate School of Agricultural and Life SciencesThe University of TokyoTokyoJapan

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