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Polyamines function in stress tolerance: from synthesis to regulation
Plants are challenged by a variety of biotic or abiotic stresses, which can affect their growth and development, productivity, and geographic distribution. In order to survive adverse environmental conditions, plants have evolved various adaptive strategies, among which is the accumulation of metabo...
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/PMC4602114/ https://www.ncbi.nlm.nih.gov/pubmed/26528300 http://dx.doi.org/10.3389/fpls.2015.00827 |
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author | Liu, Ji-Hong Wang, Wei Wu, Hao Gong, Xiaoqing Moriguchi, Takaya |
author_facet | Liu, Ji-Hong Wang, Wei Wu, Hao Gong, Xiaoqing Moriguchi, Takaya |
author_sort | Liu, Ji-Hong |
collection | PubMed |
description | Plants are challenged by a variety of biotic or abiotic stresses, which can affect their growth and development, productivity, and geographic distribution. In order to survive adverse environmental conditions, plants have evolved various adaptive strategies, among which is the accumulation of metabolites that play protective roles. A well-established example of the metabolites that are involved in stress responses, or stress tolerance, is the low-molecular-weight aliphatic polyamines, including putrescine, spermidine, and spermine. The critical role of polyamines in stress tolerance is suggested by several lines of evidence: firstly, the transcript levels of polyamine biosynthetic genes, as well as the activities of the corresponding enzymes, are induced by stresses; secondly, elevation of endogenous polyamine levels by exogenous supply of polyamines, or overexpression of polyamine biosynthetic genes, results in enhanced stress tolerance; and thirdly, a reduction of endogenous polyamines is accompanied by compromised stress tolerance. A number of studies have demonstrated that polyamines function in stress tolerance largely by modulating the homeostasis of reactive oxygen species (ROS) due to their direct, or indirect, roles in regulating antioxidant systems or suppressing ROS production. The transcriptional regulation of polyamine synthesis by transcription factors is also reviewed here. Meanwhile, future perspectives on polyamine research are also suggested. |
format | Online Article Text |
id | pubmed-4602114 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-46021142015-11-02 Polyamines function in stress tolerance: from synthesis to regulation Liu, Ji-Hong Wang, Wei Wu, Hao Gong, Xiaoqing Moriguchi, Takaya Front Plant Sci Plant Science Plants are challenged by a variety of biotic or abiotic stresses, which can affect their growth and development, productivity, and geographic distribution. In order to survive adverse environmental conditions, plants have evolved various adaptive strategies, among which is the accumulation of metabolites that play protective roles. A well-established example of the metabolites that are involved in stress responses, or stress tolerance, is the low-molecular-weight aliphatic polyamines, including putrescine, spermidine, and spermine. The critical role of polyamines in stress tolerance is suggested by several lines of evidence: firstly, the transcript levels of polyamine biosynthetic genes, as well as the activities of the corresponding enzymes, are induced by stresses; secondly, elevation of endogenous polyamine levels by exogenous supply of polyamines, or overexpression of polyamine biosynthetic genes, results in enhanced stress tolerance; and thirdly, a reduction of endogenous polyamines is accompanied by compromised stress tolerance. A number of studies have demonstrated that polyamines function in stress tolerance largely by modulating the homeostasis of reactive oxygen species (ROS) due to their direct, or indirect, roles in regulating antioxidant systems or suppressing ROS production. The transcriptional regulation of polyamine synthesis by transcription factors is also reviewed here. Meanwhile, future perspectives on polyamine research are also suggested. Frontiers Media S.A. 2015-10-13 /pmc/articles/PMC4602114/ /pubmed/26528300 http://dx.doi.org/10.3389/fpls.2015.00827 Text en Copyright © 2015 Liu, Wang, Wu, Gong and Moriguchi. 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 Liu, Ji-Hong Wang, Wei Wu, Hao Gong, Xiaoqing Moriguchi, Takaya Polyamines function in stress tolerance: from synthesis to regulation |
title | Polyamines function in stress tolerance: from synthesis to regulation |
title_full | Polyamines function in stress tolerance: from synthesis to regulation |
title_fullStr | Polyamines function in stress tolerance: from synthesis to regulation |
title_full_unstemmed | Polyamines function in stress tolerance: from synthesis to regulation |
title_short | Polyamines function in stress tolerance: from synthesis to regulation |
title_sort | polyamines function in stress tolerance: from synthesis to regulation |
topic | Plant Science |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4602114/ https://www.ncbi.nlm.nih.gov/pubmed/26528300 http://dx.doi.org/10.3389/fpls.2015.00827 |
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