Volatiles of bacteria associated with parasitoid habitats elicit distinct olfactory responses in an aphid parasitoid and its hyperparasitoid

Autor: Tom Wenseleers, Jetske G. de Boer, Christophe Vanderaa, Kevin J. Verstrepen, Bart Lievens, Tim Goelen, Felix L. Wäckers, Islam S. Sobhy, Frank Delvigne, Hans Jacquemyn, Hans Rediers, Frédéric Francis
Přispěvatelé: Terrestrial Ecology (TE)
Jazyk: angličtina
Rok vydání: 2020
Předmět:
0106 biological sciences
Bladluizen
INSECTS
ATTRACTION
microbial odour
Insect
Reuk
Q1
01 natural sciences
Parasitoid
chemistry.chemical_compound
Linalool
Semiochemical
media_common
Aphid
Ecology
biology
GUT MICROBIOTA
Sluipwespen
chemical communication
R735
Aphididae
semiochemical
Plan_S-Compliant_NO
Attraction
OVIPOSITION
international
Life Sciences & Biomedicine
Honeydew
media_common.quotation_subject
Dendrocerus aphidum
Duurzame gewasbescherming
Environmental Sciences & Ecology
multitrophic interactions
010603 evolutionary biology
BACKGROUND ODOR
Botany
Aphidius colemani
PHEROMONE
FORAGING BEHAVIOR
Ecology
Evolution
Behavior and Systematics
Science & Technology
IDENTIFICATION
fungi
VOCs
biology.organism_classification
R1
chemistry
INDUCED PLANT VOLATILES
natural enemy
INFOCHEMICAL USE
010606 plant biology & botany
Zdroj: Functional Ecology, 34(2), 507-520. John Wiley and Sons Ltd
Functional Ecology, 34(2), 507-520. [S.l.]: BES
ISSN: 0269-8463
1365-2435
Popis: To locate mating partners and essential resources such as food, oviposition sites and shelter, insects rely to a large extent on chemical cues. While most research has focused on cues derived from plants and insects, there is mounting evidence that indicates that micro‐organisms emit volatile compounds that may play an important role in insect behaviour. In this study, we assessed how volatile compounds emitted by phylogenetically diverse bacteria affected the olfactory response of the primary parasitoid Aphidius colemani and one of its secondary parasitoids, Dendrocerus aphidum. Olfactory responses were evaluated for volatile blends emitted by bacteria isolated from diverse sources from the parasitoid's habitat, including aphids, aphid mummies and honeydew, and from the parasitoids themselves. Results revealed that A. colemani showed a wide variation in response to bacterial volatiles, ranging from significant attraction over no response to significant repellence. Our results further showed that the olfactory response of A. colemani to bacterial volatile emissions was different from that of D. aphidum. Gas chromatography‐mass spectrometry analysis of the volatile blends revealed that bacterial strains repellent to A. colemani produced significantly higher amounts of esters, organic acids, aromatics and cycloalkanes than attractive strains. Strains repellent to D. aphidum produced significantly higher amounts of alcohols and ketones, whereas the strains attractive to D. aphidum produced higher amounts of the monoterpenes limonene, linalool and geraniol. Overall, our results indicate that bacterial volatiles can have an important impact on insect olfactory responses, and should therefore be considered as an additional, so far often overlooked factor in studying multitrophic interactions between plants and insects. A free Plain Language Summary can be found within the Supporting Information of this article. ispartof: FUNCTIONAL ECOLOGY vol:34 issue:2 pages:507-520 status: published
Databáze: OpenAIRE
Externí odkaz: