Abscisic Acid and abiotic stress signaling.
TLDR
The general pathway for plant stress response is described followed by roles of ABA and transcription factors in stress tolerance including the regulation of A BA biosynthesis.Abstract:
Abiotic stress is severe environmental stress, which impairs crop production on irrigated land worldwide. Overall, the susceptibility or tolerance to the stress in plants is a coordinated action of multiple stress responsive genes, which also cross-talk with other components of stress signal transduction pathways. Plant responses to abiotic stress can be determined by the severity of the stress and by the metabolic status of the plant. Abscisic acid (ABA) is a phytohormone critical for plant growth and development and plays an important role in integrating various stress signals and controlling downstream stress responses. Plants have to adjust ABA levels constantly in responce to changing physiological and environmental conditions. To date, the mechanisms for fine-tuning of ABA levels remain elusive. The mechanisms by which plants respond to stress include both ABA-dependent and ABA-independent processes. Various transcription factors such as DREB2A/2B, AREB1, RD22BP1 and MYC/MYB are known to regulate the ABA-responsive gene expression through interacting with their corrosponding cis-acting elements such as DRE/CRT, ABRE, and MYCRS/MYBRS, respectively. Understanding these mechanisms is important to improve stress tolerance in crops plants. This article first describes the general pathway for plant stress response followed by roles of ABA and transcription factors in stress tolerance including the regulation of ABA biosynthesis.read more
Citations
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Journal ArticleDOI
Abscisic Acid and Abiotic Stress Tolerance in Crop Plants
TL;DR: The role of ABA in response to abiotic stress at the molecular level and ABA signaling is discussed and the effect of A BA in respect to gene expression is dealt with.
Journal ArticleDOI
Abscisic Acid Signaling and Abiotic Stress Tolerance in Plants: A Review on Current Knowledge and Future Prospects.
Kanchan Vishwakarma,Neha Upadhyay,Nitin Kumar,Gaurav Yadav,Jaspreet Singh,Rohit Kumar Mishra,Vivek Kumar,Rishi Verma,R. G. Upadhyay,Mayank Pandey,Shivesh Sharma +10 more
TL;DR: The importance and role of A BA signaling with regard to various stresses as well as regulation of ABA biosynthetic pathway along with the transcription factors for stress tolerance are enlightened.
Journal ArticleDOI
The role of ABA and MAPK signaling pathways in plant abiotic stress responses.
TL;DR: The evidence for a role of MAPKs in the context of abiotic stress and ABA signaling is summarized, with a focus on the role of SnRKs.
Journal ArticleDOI
In Posidonia oceanica cadmium induces changes in DNA methylation and chromatin patterning
TL;DR: The data demonstrate that Cd perturbs the DNA methylation status through the involvement of a specific methyltransferase, linked to nuclear chromatin reconfiguration likely to establish a new balance of expressed/repressed chromatin.
Book ChapterDOI
Plant Response to Salt Stress and Role of Exogenous Protectants to Mitigate Salt-Induced Damages
TL;DR: This chapter attempts to summarize differential responses of plants to salinity with special reference to growth, physiology and yield and discusses the progress made in using exogenous protectants to mitigate salt-induced damages in plants.
References
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Salt and drought stress signal transduction in plants
TL;DR: Salt and drought stress signal transduction consists of ionic and osmotic homeostasis signaling pathways, detoxification (i.e., damage control and repair) response pathways, and pathways for growth regulation.
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PLANT COLD ACCLIMATION: Freezing Tolerance Genes and Regulatory Mechanisms
TL;DR: This review of recent advances in determining the nature and function of genes with roles in freezing tolerance and the mechanisms involved in low temperature gene regulation and signal transduction concludes that cold acclimation includes the expression of certain cold-induced genes that function to stabilize membranes against freeze-induced injury.
Plant cold acclimation: Freezing tolerance genes and regulatory mechanisms
TL;DR: A review of recent advances in determining the nature and function of genes with roles in freezing tolerance and the mechanisms involved in low temperature gene regulation and signal transduction are described in this article.
Journal ArticleDOI
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Shilpi Mahajan,Narendra Tuteja +1 more
TL;DR: Various factors pertaining to cold acclimation, promoter elements, and role of transcription factors in stress signaling pathway have been described, and the role of calcium as an important signaling molecule in response to various stress signals has been covered.
Journal ArticleDOI
Cell Signaling during Cold, Drought, and Salt Stress
TL;DR: Low temperature, drought, and high salinity are common stress conditions that adversely affect plant growth and crop production and understand the cellular and molecular responses of plants to environmental stress.