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Stage-Related Defense Response Induction in Tomato Plants by Nesidiocoris tenuis

The beneficial effects of direct predation by zoophytophagous biological control agents (BCAs), such as the mirid bug Nesidiocoris tenuis, are well-known. However, the benefits of zoophytophagous BCAs’ relation with host plants, via induction of plant defensive responses, have not been investigated...

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Detalles Bibliográficos
Autores principales: Naselli, Mario, Urbaneja, Alberto, Siscaro, Gaetano, Jaques, Josep A., Zappalà, Lucia, Flors, Víctor, Pérez-Hedo, Meritxell
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5000608/
https://www.ncbi.nlm.nih.gov/pubmed/27472328
http://dx.doi.org/10.3390/ijms17081210
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author Naselli, Mario
Urbaneja, Alberto
Siscaro, Gaetano
Jaques, Josep A.
Zappalà, Lucia
Flors, Víctor
Pérez-Hedo, Meritxell
author_facet Naselli, Mario
Urbaneja, Alberto
Siscaro, Gaetano
Jaques, Josep A.
Zappalà, Lucia
Flors, Víctor
Pérez-Hedo, Meritxell
author_sort Naselli, Mario
collection PubMed
description The beneficial effects of direct predation by zoophytophagous biological control agents (BCAs), such as the mirid bug Nesidiocoris tenuis, are well-known. However, the benefits of zoophytophagous BCAs’ relation with host plants, via induction of plant defensive responses, have not been investigated until recently. To date, only the females of certain zoophytophagous BCAs have been demonstrated to induce defensive plant responses in tomato plants. The aim of this work was to determine whether nymphs, adult females, and adult males of N. tenuis are able to induce defense responses in tomato plants. Compared to undamaged tomato plants (i.e., not exposed to the mirid), plants on which young or mature nymphs, or adult males or females of N. tenuis fed and developed were less attractive to the whitefly Bemisia tabaci, but were more attractive to the parasitoid Encarsia formosa. Female-exposed plants were more repellent to B. tabaci and more attractive to E. formosa than were male-exposed plants. When comparing young- and mature-nymph-exposed plants, the same level of repellence was obtained for B. tabaci, but mature-nymph-exposed plants were more attractive to E. formosa. The repellent effect is attributed to the signaling pathway of abscisic acid, which is upregulated in N. tenuis-exposed plants, whereas the parasitoid attraction was attributed to the activation of the jasmonic acid signaling pathway. Our results demonstrate that all motile stages of N. tenuis can trigger defensive responses in tomato plants, although these responses may be slightly different depending on the stage considered.
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spelling pubmed-50006082016-09-01 Stage-Related Defense Response Induction in Tomato Plants by Nesidiocoris tenuis Naselli, Mario Urbaneja, Alberto Siscaro, Gaetano Jaques, Josep A. Zappalà, Lucia Flors, Víctor Pérez-Hedo, Meritxell Int J Mol Sci Article The beneficial effects of direct predation by zoophytophagous biological control agents (BCAs), such as the mirid bug Nesidiocoris tenuis, are well-known. However, the benefits of zoophytophagous BCAs’ relation with host plants, via induction of plant defensive responses, have not been investigated until recently. To date, only the females of certain zoophytophagous BCAs have been demonstrated to induce defensive plant responses in tomato plants. The aim of this work was to determine whether nymphs, adult females, and adult males of N. tenuis are able to induce defense responses in tomato plants. Compared to undamaged tomato plants (i.e., not exposed to the mirid), plants on which young or mature nymphs, or adult males or females of N. tenuis fed and developed were less attractive to the whitefly Bemisia tabaci, but were more attractive to the parasitoid Encarsia formosa. Female-exposed plants were more repellent to B. tabaci and more attractive to E. formosa than were male-exposed plants. When comparing young- and mature-nymph-exposed plants, the same level of repellence was obtained for B. tabaci, but mature-nymph-exposed plants were more attractive to E. formosa. The repellent effect is attributed to the signaling pathway of abscisic acid, which is upregulated in N. tenuis-exposed plants, whereas the parasitoid attraction was attributed to the activation of the jasmonic acid signaling pathway. Our results demonstrate that all motile stages of N. tenuis can trigger defensive responses in tomato plants, although these responses may be slightly different depending on the stage considered. MDPI 2016-07-27 /pmc/articles/PMC5000608/ /pubmed/27472328 http://dx.doi.org/10.3390/ijms17081210 Text en © 2016 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
Naselli, Mario
Urbaneja, Alberto
Siscaro, Gaetano
Jaques, Josep A.
Zappalà, Lucia
Flors, Víctor
Pérez-Hedo, Meritxell
Stage-Related Defense Response Induction in Tomato Plants by Nesidiocoris tenuis
title Stage-Related Defense Response Induction in Tomato Plants by Nesidiocoris tenuis
title_full Stage-Related Defense Response Induction in Tomato Plants by Nesidiocoris tenuis
title_fullStr Stage-Related Defense Response Induction in Tomato Plants by Nesidiocoris tenuis
title_full_unstemmed Stage-Related Defense Response Induction in Tomato Plants by Nesidiocoris tenuis
title_short Stage-Related Defense Response Induction in Tomato Plants by Nesidiocoris tenuis
title_sort stage-related defense response induction in tomato plants by nesidiocoris tenuis
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5000608/
https://www.ncbi.nlm.nih.gov/pubmed/27472328
http://dx.doi.org/10.3390/ijms17081210
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