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| Content Provider | Directory of Open Access Journals (DOAJ) |
|---|---|
| Author | Carla CM Arce Vanitha Theepan Bernardus CJ Schimmel Geoffrey Jaffuel Matthias Erb Ricardo AR Machado |
| Abstract | Insect herbivores use different cues to locate host plants. The importance of CO2 in this context is not well understood. We manipulated CO2 perception in western corn rootworm (WCR) larvae through RNAi and studied how CO2 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 CO2. Silencing CO2 perception or scrubbing plant-associated CO2 has no effect on the ability of WCR larvae to locate host plants at short distances (<9 cm), but impairs host location at greater distances. WCR larvae preferentially orient and prefer plants that grow in well-fertilized soils compared to plants that grow in nutrient-poor soils, a behaviour that has direct consequences for larval growth and depends on the ability of the larvae to perceive root-emitted CO2. This study unravels how CO2 can mediate plant–herbivore interactions by serving as a distance-dependent host location cue. |
| e-ISSN | 2050084X |
| DOI | 10.7554/eLife.65575 |
| Journal | eLife |
| Volume Number | 10 |
| Language | English |
| Publisher | eLife Sciences Publications Ltd |
| Publisher Date | 2021-01-01 |
| Publisher Place | United Kingdom |
| Access Restriction | Open |
| Subject Keyword | Medicine Science Biology (general) Plant-herbivore Interactions Foraging Volatile Perception Behaviour Host Location |
| Content Type | Text |
| Resource Type | Article |
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