Regulation of primary plant metabolism during plant-pathogen interactions and its contribution to plant defense

Plants are constantly exposed to microorganisms in the environment and, as a result, have evolved intricate mechanisms to recognize and defend themselves against potential pathogens. One of these responses is the downregulation of photosynthesis and other processes associated with primary metabolism...

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Main Authors: Rojas, Clemencia M., Senthil-Kumar, Muthappa, Tzin, Vered, Mysore, Kirankumar S.
Format: Online
Language:English
Published: Frontiers Media S.A. 2014
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3919437/
id pubmed-3919437
recordtype oai_dc
spelling pubmed-39194372014-02-26 Regulation of primary plant metabolism during plant-pathogen interactions and its contribution to plant defense Rojas, Clemencia M. Senthil-Kumar, Muthappa Tzin, Vered Mysore, Kirankumar S. Plant Science Plants are constantly exposed to microorganisms in the environment and, as a result, have evolved intricate mechanisms to recognize and defend themselves against potential pathogens. One of these responses is the downregulation of photosynthesis and other processes associated with primary metabolism that are essential for plant growth. It has been suggested that the energy saved by downregulation of primary metabolism is diverted and used for defense responses. However, several studies have shown that upregulation of primary metabolism also occurs during plant-pathogen interactions. We propose that upregulation of primary metabolism modulates signal transduction cascades that lead to plant defense responses. In support of this thought, we here compile evidence from the literature to show that upon exposure to pathogens or elicitors, plants induce several genes associated with primary metabolic pathways, such as those involved in the synthesis or degradation of carbohydrates, amino acids and lipids. In addition, genetic studies have confirmed the involvement of these metabolic pathways in plant defense responses. This review provides a new perspective highlighting the relevance of primary metabolism in regulating plant defense against pathogens with the hope to stimulate further research in this area. Frontiers Media S.A. 2014-02-10 /pmc/articles/PMC3919437/ /pubmed/24575102 http://dx.doi.org/10.3389/fpls.2014.00017 Text en Copyright © 2014 Rojas, Senthil-Kumar, Tzin and Mysore. http://creativecommons.org/licenses/by/3.0/ 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.
repository_type Open Access Journal
institution_category Foreign Institution
institution US National Center for Biotechnology Information
building NCBI PubMed
collection Online Access
language English
format Online
author Rojas, Clemencia M.
Senthil-Kumar, Muthappa
Tzin, Vered
Mysore, Kirankumar S.
spellingShingle Rojas, Clemencia M.
Senthil-Kumar, Muthappa
Tzin, Vered
Mysore, Kirankumar S.
Regulation of primary plant metabolism during plant-pathogen interactions and its contribution to plant defense
author_facet Rojas, Clemencia M.
Senthil-Kumar, Muthappa
Tzin, Vered
Mysore, Kirankumar S.
author_sort Rojas, Clemencia M.
title Regulation of primary plant metabolism during plant-pathogen interactions and its contribution to plant defense
title_short Regulation of primary plant metabolism during plant-pathogen interactions and its contribution to plant defense
title_full Regulation of primary plant metabolism during plant-pathogen interactions and its contribution to plant defense
title_fullStr Regulation of primary plant metabolism during plant-pathogen interactions and its contribution to plant defense
title_full_unstemmed Regulation of primary plant metabolism during plant-pathogen interactions and its contribution to plant defense
title_sort regulation of primary plant metabolism during plant-pathogen interactions and its contribution to plant defense
description Plants are constantly exposed to microorganisms in the environment and, as a result, have evolved intricate mechanisms to recognize and defend themselves against potential pathogens. One of these responses is the downregulation of photosynthesis and other processes associated with primary metabolism that are essential for plant growth. It has been suggested that the energy saved by downregulation of primary metabolism is diverted and used for defense responses. However, several studies have shown that upregulation of primary metabolism also occurs during plant-pathogen interactions. We propose that upregulation of primary metabolism modulates signal transduction cascades that lead to plant defense responses. In support of this thought, we here compile evidence from the literature to show that upon exposure to pathogens or elicitors, plants induce several genes associated with primary metabolic pathways, such as those involved in the synthesis or degradation of carbohydrates, amino acids and lipids. In addition, genetic studies have confirmed the involvement of these metabolic pathways in plant defense responses. This review provides a new perspective highlighting the relevance of primary metabolism in regulating plant defense against pathogens with the hope to stimulate further research in this area.
publisher Frontiers Media S.A.
publishDate 2014
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3919437/
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