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Open AccessJournal ArticleDOI

Drought, salt, and temperature stress-induced metabolic rearrangements and regulatory networks

Julia Krasensky, +1 more
- 01 Feb 2012 - 
- Vol. 63, Iss: 4, pp 1593-1608
TLDR
Information about metabolic regulation in response to drought, extreme temperature, and salinity stress is summarized and the signalling events involved in mediating stress-induced metabolic changes are presented.
Abstract
Plants regularly face adverse growth conditions, such as drought, salinity, chilling, freezing, and high temperatures. These stresses can delay growth and development, reduce productivity, and, in extreme cases, cause plant death. Plant stress responses are dynamic and involve complex cross-talk between different regulatory levels, including adjustment of metabolism and gene expression for physiological and morphological adaptation. In this review, information about metabolic regulation in response to drought, extreme temperature, and salinity stress is summarized and the signalling events involved in mediating stress-induced metabolic changes are presented.

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Citations
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Physiological, biochemical, and molecular mechanisms of heat stress tolerance in plants

TL;DR: The recent findings on responses, adaptation, and tolerance to HT at the cellular, organellar, and whole plant levels are reviewed and various approaches being taken to enhance thermotolerance in plants are described.
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Agricultural uses of plant biostimulants

TL;DR: There is growing scientific evidence supporting the use of biostimulants as agricultural inputs on diverse plant species, such as increased root growth, enhanced nutrient uptake, and stress tolerance.
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Stress and defense responses in plant secondary metabolites production

TL;DR: Application of molecular biology tools and techniques are facilitating understanding the signaling processes and pathways involved in the SMs production at subcellular, cellular, organ and whole plant systems during in vivo and in vitro growth, with application in metabolic engineering of biosynthetic pathways intermediates.
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Photosynthesis: Response to high temperature stress

TL;DR: The physiological, biochemical and molecular aspects of high temperature stress on the process of photosynthesis, as well as the tolerance and adaptive mechanisms involved are summarized.
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Metabolomics as a tool to investigate abiotic stress tolerance in plants.

TL;DR: The presence/absence and relative accumulation of certain metabolites along with gene expression data provides accurate markers (mQTL or MWAS) for tolerant crop selection in breeding programs.
References
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Journal ArticleDOI

Mechanisms of salinity tolerance

TL;DR: The physiological and molecular mechanisms of tolerance to osmotic and ionic components of salinity stress are reviewed at the cellular, organ, and whole-plant level and the role of the HKT gene family in Na(+) exclusion from leaves is increasing.
Book

Responses of plants to environmental stresses

J. Levitt
TL;DR: In this article, the authors investigated the responses of plants to environmental stresses and found that plants respond to environmental stress in response to various types of stressors, such as drought and flooding.
Book

Physiological Plant Ecology

TL;DR: Life in the Solar System, and Beyond, and beyond, and In the Right Place at the Right Time.
Journal ArticleDOI

Proline: a multifunctional amino acid

TL;DR: The compartmentalization of proline biosynthesis, accumulation and degradation in the cytosol, chloroplast and mitochondria is discussed and the role of prolines in cellular homeostasis, including redox balance and energy status, is described.
Journal ArticleDOI

Two transcription factors, DREB1 and DREB2, with an EREBP/AP2 DNA binding domain separate two cellular signal transduction pathways in drought- and low-temperature-responsive gene expression, respectively, in Arabidopsis.

TL;DR: Overexpression of the DREB1A cDNA in transgenic Arabidopsis plants not only induced strong expression of the target genes under unstressed conditions but also caused dwarfed phenotypes in the transgenic plants, and revealed freezing and dehydration tolerance.
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