Cargando…

Response of Predatory Mites to a Herbivore-Induced Plant Volatile: Genetic Variation for Context-Dependent Behaviour

Plants infested with herbivores release specific volatile compounds that are known to recruit natural enemies. The response of natural enemies to these volatiles may be either learned or genetically determined. We asked whether there is genetic variation in the response of the predatory mite Phytose...

Descripción completa

Detalles Bibliográficos
Autores principales: Sznajder, Beata, Sabelis, Maurice W., Egas, Martijn
Formato: Texto
Lenguaje:English
Publicado: Springer-Verlag 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2895863/
https://www.ncbi.nlm.nih.gov/pubmed/20574785
http://dx.doi.org/10.1007/s10886-010-9818-y
_version_ 1782183292858007552
author Sznajder, Beata
Sabelis, Maurice W.
Egas, Martijn
author_facet Sznajder, Beata
Sabelis, Maurice W.
Egas, Martijn
author_sort Sznajder, Beata
collection PubMed
description Plants infested with herbivores release specific volatile compounds that are known to recruit natural enemies. The response of natural enemies to these volatiles may be either learned or genetically determined. We asked whether there is genetic variation in the response of the predatory mite Phytoseiulus persimilis to methyl salicylate (MeSa). MeSa is a volatile compound consistently produced by plants being attacked by the two-spotted spider mite, the prey of P. persimilis. We predicted that predators express genetically determined responses during long-distance migration where previously learned associations may have less value. Additionally, we asked whether these responses depend on odors from uninfested plants as a background to MeSa. To infer a genetic basis, we analyzed the variation in response to MeSa among iso-female lines of P. persimilis by using choice-tests that involved either (1) MeSa presented as a single compound or (2) MeSa with background-odor from uninfested lima bean plants. These tests were conducted for starved and satiated predators, i.e., two physiological states, one that approximates migration and another that mimics local patch exploration. We found variation among iso-female lines in the responses to MeSa, thus showing genetic variation for this behavior. The variation was more pronounced in the starved predators, thus indicating that P. persimilis relies on innate preferences when migrating. Background volatiles of uninfested plants changed the predators’ responses to MeSa in a manner that depended on physiological state and iso-female line. Thus, it is possible to select for context-dependent behavioral responses of natural enemies to plant volatiles.
format Text
id pubmed-2895863
institution National Center for Biotechnology Information
language English
publishDate 2010
publisher Springer-Verlag
record_format MEDLINE/PubMed
spelling pubmed-28958632010-07-29 Response of Predatory Mites to a Herbivore-Induced Plant Volatile: Genetic Variation for Context-Dependent Behaviour Sznajder, Beata Sabelis, Maurice W. Egas, Martijn J Chem Ecol Article Plants infested with herbivores release specific volatile compounds that are known to recruit natural enemies. The response of natural enemies to these volatiles may be either learned or genetically determined. We asked whether there is genetic variation in the response of the predatory mite Phytoseiulus persimilis to methyl salicylate (MeSa). MeSa is a volatile compound consistently produced by plants being attacked by the two-spotted spider mite, the prey of P. persimilis. We predicted that predators express genetically determined responses during long-distance migration where previously learned associations may have less value. Additionally, we asked whether these responses depend on odors from uninfested plants as a background to MeSa. To infer a genetic basis, we analyzed the variation in response to MeSa among iso-female lines of P. persimilis by using choice-tests that involved either (1) MeSa presented as a single compound or (2) MeSa with background-odor from uninfested lima bean plants. These tests were conducted for starved and satiated predators, i.e., two physiological states, one that approximates migration and another that mimics local patch exploration. We found variation among iso-female lines in the responses to MeSa, thus showing genetic variation for this behavior. The variation was more pronounced in the starved predators, thus indicating that P. persimilis relies on innate preferences when migrating. Background volatiles of uninfested plants changed the predators’ responses to MeSa in a manner that depended on physiological state and iso-female line. Thus, it is possible to select for context-dependent behavioral responses of natural enemies to plant volatiles. Springer-Verlag 2010-06-25 2010 /pmc/articles/PMC2895863/ /pubmed/20574785 http://dx.doi.org/10.1007/s10886-010-9818-y Text en © The Author(s) 2010 https://creativecommons.org/licenses/by-nc/4.0/ This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
spellingShingle Article
Sznajder, Beata
Sabelis, Maurice W.
Egas, Martijn
Response of Predatory Mites to a Herbivore-Induced Plant Volatile: Genetic Variation for Context-Dependent Behaviour
title Response of Predatory Mites to a Herbivore-Induced Plant Volatile: Genetic Variation for Context-Dependent Behaviour
title_full Response of Predatory Mites to a Herbivore-Induced Plant Volatile: Genetic Variation for Context-Dependent Behaviour
title_fullStr Response of Predatory Mites to a Herbivore-Induced Plant Volatile: Genetic Variation for Context-Dependent Behaviour
title_full_unstemmed Response of Predatory Mites to a Herbivore-Induced Plant Volatile: Genetic Variation for Context-Dependent Behaviour
title_short Response of Predatory Mites to a Herbivore-Induced Plant Volatile: Genetic Variation for Context-Dependent Behaviour
title_sort response of predatory mites to a herbivore-induced plant volatile: genetic variation for context-dependent behaviour
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2895863/
https://www.ncbi.nlm.nih.gov/pubmed/20574785
http://dx.doi.org/10.1007/s10886-010-9818-y
work_keys_str_mv AT sznajderbeata responseofpredatorymitestoaherbivoreinducedplantvolatilegeneticvariationforcontextdependentbehaviour
AT sabelismauricew responseofpredatorymitestoaherbivoreinducedplantvolatilegeneticvariationforcontextdependentbehaviour
AT egasmartijn responseofpredatorymitestoaherbivoreinducedplantvolatilegeneticvariationforcontextdependentbehaviour