Biologia Plantarum

, Volume 54, Issue 2, pp 201–212

Transcription factors in plants and ABA dependent and independent abiotic stress signalling

Review

DOI: 10.1007/s10535-010-0038-7

Cite this article as:
Agarwal, P.K. & Jha, B. Biol Plant (2010) 54: 201. doi:10.1007/s10535-010-0038-7

Abstract

Plants face variable environmental stresses that negatively affect plant growth and productivity. The multiplicity of responses is an important aspect of the complexity of stress signalling. Abscisic acid (ABA) is a broad-spectrum phytohormone involved not only in regulating stomatal opening, growth and development but also in coordinating various stress signal transduction pathways in plants during abiotic stresses. The both ABA-dependent and ABA-independent signal transduction pathways from stress signal perception to gene expression involve different transcription factors such as DREB, MYC/MYB, AREB/ABF, NAM, ATAF1,2, CUC and their corresponding cis-acting elements DRE, MYCRS/MYBRS, ABRE, NACRS. Genetic analysis of ABA mutants has given insight that ABA-dependent and ABA-independent pathways for osmotic stress and cold stress interact and converge. This review focuses on ABA-dependent and ABA-independent transcriptional components and cascades, their specificity and crosstalk in stress gene regulation.

Additional key words

cis-elementcross talkdownstream genesgene regulationoverexpression

Abbreviations

ABA

abscisic acid

ABF

ABRE binding factor

AP2

apetala 2

AREBs

ABA responsive element binding protein

ATAF1,2

Arabidopsis transcription factor 1 or 2 like family

CUC

cup-shaped cotyledon

DREB2

drought responsive element binding protein 2

ERF

ethylene responsive factor

hos5

high expression of osmotic responsive genes

NAM

no apical meristem

Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  1. 1.Discipline of Marine Biotechnology and Ecology, Central Salt and Marine Chemicals Research InstituteCouncil of Scientific and Industrial ResearchBhavnagarIndia