Plant volatiles challenge inhibition by structural analogs of the sex pheromone in Lobesia botrana (Lepidoptera: Tortricidae)
Riba i Viladot, Magí
Guerrero Pérez, Ángel
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Plant volatiles can synergize the response to moth pheromone. Synthetic pheromone analogs, in turn, have the opposite effect in reducing pheromone attractiveness. To determine how these two types of stimuli interact and influence male moth behaviour, we performed wind tunnel experiments on the grapevine moth, Lobesia botrana. We noticed that a blend of host plant volatiles [(E)-β-caryophyllene, 1-hexanol, (Z)-3-hexenyl acetate and 1-octen-3-ol in a 100:20:10:5 ratio] significantly increased the response of males to an optimized blend of sex pheromone [(7E,9Z)-dodeca-7,9-dienyl acetate (E7,Z9-12:Ac), (7E,9Z)- dodeca-7,9-dienol (E7,Z9-12:OH) and (Z)-9-dodecenyl acetate (Z9-12:Ac)] in a 100:10:2 ratio. However, the response of males to the natural attractant was significantly reduced by two analogs [(9E,11Z)-tetradeca-9,11-dien-2-one (MK 2) and [(9E,11Z)-1,1,1-trifluoro-tetradeca-9,11-dien-2-one (TFMK 3)], of the major component of the sex pheromone of the insect (E7,Z9-12:Ac). When both stimuli were tested on males at pheromone:analog:plant volatile blend 1:100:1000 ratio, the plant blend offset the inhibitory effect induced by TFMK 3 but not that of MK 2. Our results show for the first time that under laboratory conditions plant volatiles can prevent inhibition by a pheromone analog. Dades primàries associades a l'article http://hdl.handle.net/10459.1/57678
Is part ofEuropean Journal of Entomology, 2016, vol. 113, p. 579-586
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Except where otherwise noted, this item's license is described as cc-by (c) Czech Academy of Sciences. Institute of Entomology of the Biology Centre, 2016
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Plant volatiles challenge inhibition by structural analogs of the sex pheromone in Lobesia botrana (Lepidoptera: Tortricidae) [Research data] Sans i Badia, Albert; Morán, Miguel; Riba i Viladot, Magí; Guerrero Pérez, Ángel; Roig, Jaume; Gemeno Marín, César (Universitat de Lleida, 2016)We have found that two analogues of the major sex pheromone component of Lobesia botrana significantly reduced the response of males to pheromone in a wind tunnel. A host-plant volatile blend significantly increased male ...
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