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Independent Effects of a Herbivore’s Bacterial Symbionts on Its Performance and Induced Plant Defences

It is well known that microbial pathogens and herbivores elicit defence responses in plants. Moreover, microorganisms associated with herbivores, such as bacteria or viruses, can modulate the plant’s response to herbivores. Herbivorous spider mites can harbour different species of bacterial symbiont...

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Autores principales: Staudacher, Heike, Schimmel, Bernardus C. J., Lamers, Mart M., Wybouw, Nicky, Groot, Astrid T., Kant, Merijn R.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5297814/
https://www.ncbi.nlm.nih.gov/pubmed/28106771
http://dx.doi.org/10.3390/ijms18010182
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author Staudacher, Heike
Schimmel, Bernardus C. J.
Lamers, Mart M.
Wybouw, Nicky
Groot, Astrid T.
Kant, Merijn R.
author_facet Staudacher, Heike
Schimmel, Bernardus C. J.
Lamers, Mart M.
Wybouw, Nicky
Groot, Astrid T.
Kant, Merijn R.
author_sort Staudacher, Heike
collection PubMed
description It is well known that microbial pathogens and herbivores elicit defence responses in plants. Moreover, microorganisms associated with herbivores, such as bacteria or viruses, can modulate the plant’s response to herbivores. Herbivorous spider mites can harbour different species of bacterial symbionts and exert a broad range of effects on host-plant defences. Hence, we tested the extent to which such symbionts affect the plant’s defences induced by their mite host and assessed if this translates into changes in plant resistance. We assessed the bacterial communities of two strains of the common mite pest Tetranychus urticae. We found that these strains harboured distinct symbiotic bacteria and removed these using antibiotics. Subsequently, we tested to which extent mites with and without symbiotic bacteria induce plant defences in terms of phytohormone accumulation and defence gene expression, and assessed mite oviposition and survival as a measure for plant resistance. We observed that the absence/presence of these bacteria altered distinct plant defence parameters and affected mite performance but we did not find indications for a causal link between the two. We argue that although bacteria-related effects on host-induced plant defences may occur, these do not necessarily affect plant resistance concomitantly.
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spelling pubmed-52978142017-02-10 Independent Effects of a Herbivore’s Bacterial Symbionts on Its Performance and Induced Plant Defences Staudacher, Heike Schimmel, Bernardus C. J. Lamers, Mart M. Wybouw, Nicky Groot, Astrid T. Kant, Merijn R. Int J Mol Sci Article It is well known that microbial pathogens and herbivores elicit defence responses in plants. Moreover, microorganisms associated with herbivores, such as bacteria or viruses, can modulate the plant’s response to herbivores. Herbivorous spider mites can harbour different species of bacterial symbionts and exert a broad range of effects on host-plant defences. Hence, we tested the extent to which such symbionts affect the plant’s defences induced by their mite host and assessed if this translates into changes in plant resistance. We assessed the bacterial communities of two strains of the common mite pest Tetranychus urticae. We found that these strains harboured distinct symbiotic bacteria and removed these using antibiotics. Subsequently, we tested to which extent mites with and without symbiotic bacteria induce plant defences in terms of phytohormone accumulation and defence gene expression, and assessed mite oviposition and survival as a measure for plant resistance. We observed that the absence/presence of these bacteria altered distinct plant defence parameters and affected mite performance but we did not find indications for a causal link between the two. We argue that although bacteria-related effects on host-induced plant defences may occur, these do not necessarily affect plant resistance concomitantly. MDPI 2017-01-18 /pmc/articles/PMC5297814/ /pubmed/28106771 http://dx.doi.org/10.3390/ijms18010182 Text en © 2017 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Staudacher, Heike
Schimmel, Bernardus C. J.
Lamers, Mart M.
Wybouw, Nicky
Groot, Astrid T.
Kant, Merijn R.
Independent Effects of a Herbivore’s Bacterial Symbionts on Its Performance and Induced Plant Defences
title Independent Effects of a Herbivore’s Bacterial Symbionts on Its Performance and Induced Plant Defences
title_full Independent Effects of a Herbivore’s Bacterial Symbionts on Its Performance and Induced Plant Defences
title_fullStr Independent Effects of a Herbivore’s Bacterial Symbionts on Its Performance and Induced Plant Defences
title_full_unstemmed Independent Effects of a Herbivore’s Bacterial Symbionts on Its Performance and Induced Plant Defences
title_short Independent Effects of a Herbivore’s Bacterial Symbionts on Its Performance and Induced Plant Defences
title_sort independent effects of a herbivore’s bacterial symbionts on its performance and induced plant defences
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5297814/
https://www.ncbi.nlm.nih.gov/pubmed/28106771
http://dx.doi.org/10.3390/ijms18010182
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