Role of proline under changing environments: a review.
TLDR
Review of the literature indicates that a stressful environment results in an overproduction of proline in plants which in turn imparts stress tolerance by maintaining cell turgor or osmotic balance; stabilizing membranes thereby preventing electrolyte leakage; and bringing concentrations of reactive oxygen species within normal ranges, thus preventing oxidative burst in plants.Abstract:
When exposed to stressful conditions, plants accumulate an array of metabolites, particularly amino acids. Amino acids have traditionally been considered as precursors to and constituents of proteins, and play an important role in plant metabolism and development. A large body of data suggests a positive correlation between proline accumulation and plant stress. Proline, an amino acid, plays a highly beneficial role in plants exposed to various stress conditions. Besides acting as an excellent osmolyte, proline plays three major roles during stress, i.e., as a metal chelator, an antioxidative defense molecule and a signaling molecule. Review of the literature indicates that a stressful environment results in an overproduction of proline in plants which in turn imparts stress tolerance by maintaining cell turgor or osmotic balance; stabilizing membranes thereby preventing electrolyte leakage; and bringing concentrations of reactive oxygen species (ROS) within normal ranges, thus preventing oxidative burst ...read more
Citations
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Effects of seaweed extract on the growth, yield and quality of cherry tomato under different growth conditions
TL;DR: C cherry tomato seedlings treated by seaweed extract had a lower content of proline and higher leaf water potential compared to non-treated seedlings under stress conditions, indicating that application of this fertilizer contributes to better adaptation of cherry Tomato seedlings to stress.
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Discerning of Rice Landraces (Oryza sativa L.) for Morpho-physiological, Antioxidant Enzyme Activity, and Molecular Markers’ Responses to Induced Salt Stress at the Seedling Stage
TL;DR: The positive relationships of Na+/K+ ratio with hydrogen peroxide (H2O2) and malondialdehyde (MDA) and antioxidant enzymes’ activity in the tolerant rice genotypes indicated their importance for improving salinity tolerance and their abilities to fight against oxidative stress.
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Climate Change-Induced Stress Reduce Quantity and Alter Composition of Nectar and Pollen From a Bee-Pollinated Species (Borago officinalis, Boraginaceae).
TL;DR: In this paper, the authors investigated the impact of temperature rise (+3 °C and +6 °C) and water stress (soil humidity lower than 15%) on the floral resources produced by the bee-pollinated species Borago officinalis.
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Isolation and expression analysis of proline metabolism-related genes in Chrysanthemum lavandulifolium
TL;DR: This study indicates that ClProTs play significant roles in proline accumulation and stress responses, and that Cl ProT2 could be used to genetically modify the stress resistance of chrysanthemums.
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Phytotoxic effects of plastic pollution in crops: what is the size of the problem?
TL;DR: In this article, the potential of nano-and microplastics in damaging crop species, with focus on the physiological changes described in the literature, is discussed, and a review is performed to identify robust effects and their possible mechanisms.
References
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Journal ArticleDOI
Oxidative stress, antioxidants and stress tolerance
TL;DR: Key steps of the signal transduction pathway that senses ROIs in plants have been identified and raise several intriguing questions about the relationships between ROI signaling, ROI stress and the production and scavenging ofROIs in the different cellular compartments.
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ASCORBATE AND GLUTATHIONE: Keeping Active Oxygen Under Control
Graham Noctor,Christine H. Foyer +1 more
TL;DR: A detailed account of current knowledge of the biosynthesis, compartmentation, and transport of these two important antioxidants, with emphasis on the unique insights and advances gained by molecular exploration are provided.
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Roles of glycine betaine and proline in improving plant abiotic stress resistance
Muhammad Ashraf,Majid R. Foolad +1 more
TL;DR: In this review article, numerous examples of successful application of these compounds to improve plant stress tolerance are presented and a better understanding of the mechanisms of action of exogenously applied GB and proline is expected to aid their effective utilization in crop production in stress environments.
Journal ArticleDOI
Proline: a multifunctional amino acid
László Szabados,Arnould Savouré +1 more
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
Genes and salt tolerance: bringing them together.
TL;DR: This review lists some candidate genes for salinity tolerance, and draws together hypotheses about the functions of these genes and the specific tissues in which they might operate.
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