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Salicylic acid-induced abiotic stress tolerance and underlying mechanisms in plants
Abiotic stresses (such as metals/metalloids, salinity, ozone, UV-B radiation, extreme temperatures, and drought) are among the most challenging threats to agricultural system and economic yield of crop plants. These stresses (in isolation and/or combination) induce numerous adverse effects in plants...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4485163/ https://www.ncbi.nlm.nih.gov/pubmed/26175738 http://dx.doi.org/10.3389/fpls.2015.00462 |
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author | Khan, M. Iqbal R. Fatma, Mehar Per, Tasir S. Anjum, Naser A. Khan, Nafees A. |
author_facet | Khan, M. Iqbal R. Fatma, Mehar Per, Tasir S. Anjum, Naser A. Khan, Nafees A. |
author_sort | Khan, M. Iqbal R. |
collection | PubMed |
description | Abiotic stresses (such as metals/metalloids, salinity, ozone, UV-B radiation, extreme temperatures, and drought) are among the most challenging threats to agricultural system and economic yield of crop plants. These stresses (in isolation and/or combination) induce numerous adverse effects in plants, impair biochemical/physiological and molecular processes, and eventually cause severe reductions in plant growth, development and overall productivity. Phytohormones have been recognized as a strong tool for sustainably alleviating adverse effects of abiotic stresses in crop plants. In particular, the significance of salicylic acid (SA) has been increasingly recognized in improved plant abiotic stress-tolerance via SA-mediated control of major plant-metabolic processes. However, the basic biochemical/physiological and molecular mechanisms that potentially underpin SA-induced plant-tolerance to major abiotic stresses remain least discussed. Based on recent reports, this paper: (a) overviews historical background and biosynthesis of SA under both optimal and stressful environments in plants; (b) critically appraises the role of SA in plants exposed to major abiotic stresses; (c) cross-talks potential mechanisms potentially governing SA-induced plant abiotic stress-tolerance; and finally (d) briefly highlights major aspects so far unexplored in the current context. |
format | Online Article Text |
id | pubmed-4485163 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-44851632015-07-14 Salicylic acid-induced abiotic stress tolerance and underlying mechanisms in plants Khan, M. Iqbal R. Fatma, Mehar Per, Tasir S. Anjum, Naser A. Khan, Nafees A. Front Plant Sci Plant Science Abiotic stresses (such as metals/metalloids, salinity, ozone, UV-B radiation, extreme temperatures, and drought) are among the most challenging threats to agricultural system and economic yield of crop plants. These stresses (in isolation and/or combination) induce numerous adverse effects in plants, impair biochemical/physiological and molecular processes, and eventually cause severe reductions in plant growth, development and overall productivity. Phytohormones have been recognized as a strong tool for sustainably alleviating adverse effects of abiotic stresses in crop plants. In particular, the significance of salicylic acid (SA) has been increasingly recognized in improved plant abiotic stress-tolerance via SA-mediated control of major plant-metabolic processes. However, the basic biochemical/physiological and molecular mechanisms that potentially underpin SA-induced plant-tolerance to major abiotic stresses remain least discussed. Based on recent reports, this paper: (a) overviews historical background and biosynthesis of SA under both optimal and stressful environments in plants; (b) critically appraises the role of SA in plants exposed to major abiotic stresses; (c) cross-talks potential mechanisms potentially governing SA-induced plant abiotic stress-tolerance; and finally (d) briefly highlights major aspects so far unexplored in the current context. Frontiers Media S.A. 2015-06-30 /pmc/articles/PMC4485163/ /pubmed/26175738 http://dx.doi.org/10.3389/fpls.2015.00462 Text en Copyright © 2015 Khan, Fatma, Per, Anjum and Khan. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Plant Science Khan, M. Iqbal R. Fatma, Mehar Per, Tasir S. Anjum, Naser A. Khan, Nafees A. Salicylic acid-induced abiotic stress tolerance and underlying mechanisms in plants |
title | Salicylic acid-induced abiotic stress tolerance and underlying mechanisms in plants |
title_full | Salicylic acid-induced abiotic stress tolerance and underlying mechanisms in plants |
title_fullStr | Salicylic acid-induced abiotic stress tolerance and underlying mechanisms in plants |
title_full_unstemmed | Salicylic acid-induced abiotic stress tolerance and underlying mechanisms in plants |
title_short | Salicylic acid-induced abiotic stress tolerance and underlying mechanisms in plants |
title_sort | salicylic acid-induced abiotic stress tolerance and underlying mechanisms in plants |
topic | Plant Science |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4485163/ https://www.ncbi.nlm.nih.gov/pubmed/26175738 http://dx.doi.org/10.3389/fpls.2015.00462 |
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