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Dehydration Stress Contributes to the Enhancement of Plant Defense Response and Mite Performance on Barley

Under natural conditions, plants suffer different stresses simultaneously or in a sequential way. At present, the combined effect of biotic and abiotic stressors is one of the most important threats to crop production. Understanding how plants deal with the panoply of potential stresses affecting th...

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Autores principales: Santamaria, M. E., Diaz, Isabel, Martinez, Manuel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5898276/
https://www.ncbi.nlm.nih.gov/pubmed/29681917
http://dx.doi.org/10.3389/fpls.2018.00458
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author Santamaria, M. E.
Diaz, Isabel
Martinez, Manuel
author_facet Santamaria, M. E.
Diaz, Isabel
Martinez, Manuel
author_sort Santamaria, M. E.
collection PubMed
description Under natural conditions, plants suffer different stresses simultaneously or in a sequential way. At present, the combined effect of biotic and abiotic stressors is one of the most important threats to crop production. Understanding how plants deal with the panoply of potential stresses affecting them is crucial to develop biotechnological tools to protect plants. As well as for drought stress, the economic importance of the spider mite on agriculture is expected to increase due to climate change. Barley is a host of the polyphagous spider mite Tetranychus urticae and drought produces important yield losses. To obtain insights on the combined effect of drought and mite stresses on the defensive response of this cereal, we have analyzed the transcriptomic responses of barley plants subjected to dehydration (water-deficit) treatment, spider mite attack, or to the combined dehydration-spider mite stress. The expression patterns of mite-induced responsive genes included many jasmonic acid responsive genes and were quickly induced. In contrast, genes related to dehydration tolerance were later up-regulated. Besides, a higher up-regulation of mite-induced defenses was showed by the combined dehydration and mite treatment than by the individual mite stress. On the other hand, the performance of the mite in dehydration stressed and well-watered plants was tested. Despite the stronger defensive response in plants that suffer dehydration and mite stresses, the spider mite demonstrates a better performance under dehydration condition than in well-watered plants. These results highlight the complexity of the regulatory events leading to the response to a combination of stresses and emphasize the difficulties to predict their consequences on crop production.
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spelling pubmed-58982762018-04-20 Dehydration Stress Contributes to the Enhancement of Plant Defense Response and Mite Performance on Barley Santamaria, M. E. Diaz, Isabel Martinez, Manuel Front Plant Sci Plant Science Under natural conditions, plants suffer different stresses simultaneously or in a sequential way. At present, the combined effect of biotic and abiotic stressors is one of the most important threats to crop production. Understanding how plants deal with the panoply of potential stresses affecting them is crucial to develop biotechnological tools to protect plants. As well as for drought stress, the economic importance of the spider mite on agriculture is expected to increase due to climate change. Barley is a host of the polyphagous spider mite Tetranychus urticae and drought produces important yield losses. To obtain insights on the combined effect of drought and mite stresses on the defensive response of this cereal, we have analyzed the transcriptomic responses of barley plants subjected to dehydration (water-deficit) treatment, spider mite attack, or to the combined dehydration-spider mite stress. The expression patterns of mite-induced responsive genes included many jasmonic acid responsive genes and were quickly induced. In contrast, genes related to dehydration tolerance were later up-regulated. Besides, a higher up-regulation of mite-induced defenses was showed by the combined dehydration and mite treatment than by the individual mite stress. On the other hand, the performance of the mite in dehydration stressed and well-watered plants was tested. Despite the stronger defensive response in plants that suffer dehydration and mite stresses, the spider mite demonstrates a better performance under dehydration condition than in well-watered plants. These results highlight the complexity of the regulatory events leading to the response to a combination of stresses and emphasize the difficulties to predict their consequences on crop production. Frontiers Media S.A. 2018-04-06 /pmc/articles/PMC5898276/ /pubmed/29681917 http://dx.doi.org/10.3389/fpls.2018.00458 Text en Copyright © 2018 Santamaria, Diaz and Martinez. 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) and the copyright owner 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
Santamaria, M. E.
Diaz, Isabel
Martinez, Manuel
Dehydration Stress Contributes to the Enhancement of Plant Defense Response and Mite Performance on Barley
title Dehydration Stress Contributes to the Enhancement of Plant Defense Response and Mite Performance on Barley
title_full Dehydration Stress Contributes to the Enhancement of Plant Defense Response and Mite Performance on Barley
title_fullStr Dehydration Stress Contributes to the Enhancement of Plant Defense Response and Mite Performance on Barley
title_full_unstemmed Dehydration Stress Contributes to the Enhancement of Plant Defense Response and Mite Performance on Barley
title_short Dehydration Stress Contributes to the Enhancement of Plant Defense Response and Mite Performance on Barley
title_sort dehydration stress contributes to the enhancement of plant defense response and mite performance on barley
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5898276/
https://www.ncbi.nlm.nih.gov/pubmed/29681917
http://dx.doi.org/10.3389/fpls.2018.00458
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