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A herbivore-induced plant volatile interferes with host plant and mate location in moths through suppression of olfactory signalling pathways

A herbivore-induced plant volatile interferes with host plant and mate location in moths through suppression of olfactory signalling pathways

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HATANO, Eduardo, Ahmed M. SAVEER, Felipe BORRERO-ECHEVERRY, Martin STRAUCH, Ali ZAKIR, Marie BENGTSSON, Rickard IGNELL, Peter ANDERSON, Paul G. BECHER, Peter WITZGALL, Teun DEKKER, 2015. A herbivore-induced plant volatile interferes with host plant and mate location in moths through suppression of olfactory signalling pathways. In: BMC Biology. 13, 75. eISSN 1741-7007

@article{Hatano2015herbi-33279, title={A herbivore-induced plant volatile interferes with host plant and mate location in moths through suppression of olfactory signalling pathways}, year={2015}, doi={10.1186/s12915-015-0188-3}, volume={13}, journal={BMC Biology}, author={Hatano, Eduardo and Saveer, Ahmed M. and Borrero-Echeverry, Felipe and Strauch, Martin and Zakir, Ali and Bengtsson, Marie and Ignell, Rickard and Anderson, Peter and Becher, Paul G. and Witzgall, Peter and Dekker, Teun}, note={Article Number: 75} }

Saveer, Ahmed M. Zakir, Ali Dekker, Teun A herbivore-induced plant volatile interferes with host plant and mate location in moths through suppression of olfactory signalling pathways Zakir, Ali Anderson, Peter Hatano, Eduardo Becher, Paul G. Borrero-Echeverry, Felipe 2016-03-09T09:25:25Z Becher, Paul G. Dekker, Teun eng Anderson, Peter Hatano, Eduardo Strauch, Martin 2016-03-09T09:25:25Z Ignell, Rickard Strauch, Martin Ignell, Rickard Bengtsson, Marie Borrero-Echeverry, Felipe Saveer, Ahmed M. Bengtsson, Marie Background<br />Plants under herbivore attack release volatiles that attract natural enemies, and herbivores in turn avoid such plants. Whilst herbivore-induced plant volatile blends appeared to reduce the attractiveness of host plants to herbivores, the volatiles that are key in this process and particularly the way in which deterrence is coded in the olfactory system are largely unknown. Here we demonstrate that herbivore-induced cotton volatiles suppress orientation of the moth Spodoptera littoralis to host plants and mates.<br /><br />Results<br />We found that (E)-4,8-dimethyl-1,3,7-nonatriene (DMNT), an induced volatile, is key in herbivore deterrence: DMNT suppressed plant odour- and pheromone-induced behaviours. We then dissected the neurophysiological basis of this interaction. DMNT-responding glomeruli were also activated by other plant compounds, suggesting that S. littoralis possesses no segregated olfactory circuit dedicated exclusively to DMNT. Instead, DMNT suppressed responses to the main pheromone component, (Z)-9-(E)-11-tetradecenyl acetate, and primarily to (Z)-3-hexenyl acetate, a host plant attractant.<br /><br />Conclusion<br />Our study shows that olfactory sensory inhibition, which has previously been reported without reference to an animal’s ecology, can be at the core of coding of ecologically relevant odours. As DMNT attracts natural enemies and deters herbivores, it may be useful in the development or enhancement of push-pull strategies for sustainable agriculture. 2015 Witzgall, Peter Witzgall, Peter

Dateiabrufe seit 09.03.2016 (Informationen über die Zugriffsstatistik)

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