Plant-associated CO.sub.2 mediates long-distance host location and foraging behaviour of a root herbivore

Insect herbivores use different cues to locate host plants. The importance of CO.sub.2 in this context is not well understood. We manipulated CO.sub.2 perception in western corn rootworm (WCR) larvae through RNAi and studied how CO.sub.2 perception impacts their interaction with their host plant. Th...

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Bibliographic Details
Published in:eLife 2021-04, Vol.10
Main Authors: Arce, Carla CM, Theepan, Vanitha, Schimmel, Bernardus CJ, Jaffuel, Geoffrey, Erb, Matthias, Machado, Ricardo AR
Format: Article
Language:English
Subjects:
Biotechnology industry
Carbon dioxide
Genetic engineering
Genetically modified organisms
Plants
Scientific equipment and supplies industry
Online Access:Get full text
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Summary:Insect herbivores use different cues to locate host plants. The importance of CO.sub.2 in this context is not well understood. We manipulated CO.sub.2 perception in western corn rootworm (WCR) larvae through RNAi and studied how CO.sub.2 perception impacts their interaction with their host plant. The expression of a carbon dioxide receptor, DvvGr2, is specifically required for dose-dependent larval responses to CO.sub.2. Silencing CO.sub.2 perception or scrubbing plant-associated CO.sub.2 has no effect on the ability of WCR larvae to locate host plants at short distances (
ISSN:2050-084X
2050-084X
DOI:10.7554/eLife.65575