Five Types of Olfactory Receptor Neurons in the Strawberry Blossom Weevil Anthonomus rubi: Selective Responses to Inducible Host-plant Volatiles

Bichão, Helena

doi:10.1093/chemse/bji012

Cited by 46 publications

(52 citation statements)

References 39 publications

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“…Several species related to A. musculus, e.g., Anthonomis pomorum, A. grandis, and A. rubi, have shown electrophysiological antennal (EAG) responses to host plant volatiles (Dickens, 1990;Kalinova et al, 2000;Bichao et al, 2005) and several species of weevils, such as the pine weevil, banana weevil, vine weevil, and pepper weevil (Budenberg et al, 1993;Wibe et al, 1997;van Tol and Visser, 2002;Addesso and McAuslane, 2009), responded to host-plant volatiles in behavioral bioassays. In Y-tube olfactometer assays, Mechaber (1992) found that adult A. musculus were more attracted to conspecific-damaged cranberry vines compared with undamaged vines, as well as to undamaged and damaged flower buds compared to clean air (Mechaber, 1992).…”

Section: Resultsmentioning

confidence: 99%

Identification and Field Evaluation of Attractants for the Cranberry Weevil, Anthonomus musculus Say

et al. 2011

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Studies were conducted to develop an attractant for the cranberry weevil, Anthonomus musculus, a pest of blueberry and cranberry flower buds and flowers in the northeastern United States. In previous studies, we showed that cinnamyl alcohol, the most abundant blueberry floral volatile, and the green leaf volatiles (Z)-3-hexenyl acetate and hexyl acetate, emitted from both flowers and flower buds, elicit strong antennal responses from A. musculus. Here, we found that cinnamyl alcohol did not increase capture of A. musculus adults on yellow sticky traps compared with unbaited controls; however, weevils were highly attracted to traps baited with the Anthonomus eugenii Cano aggregation pheromone, indicating that these congeners share common pheromone components. To identify the A. musculus aggregation pheromone, headspace volatiles were collected from adults feeding on blueberry or cranberry flower buds and analyzed by gas chromatographymass spectrometry. Three male-specific compounds were identified: (Z)-2-(3,3-dimethyl-cyclohexylidene) ethanol (Z grandlure II); (Z)-(3,3-dimethylcyclohexylidene) acetaldehyde (grandlure III); and (E)-(3,3-dimethylcyclohexylidene) acetaldehyde (grandlure IV). A fourth component, (E)-3,7-dimethyl-2,6-octadien-1-ol (geraniol), was emitted in similar quantities by males and females. The emission rates of these volatiles were about 2.8, 1.8, 1.3, and 0.9 ng/adult/d, respectively. Field experiments in highbush blueberry (New Jersey) and cranberry (Massachusetts) examined the attraction of A. musculus to traps baited with the male-produced compounds and geraniol presented alone and combined with (Z)-3-hexenyl acetate and hexyl acetate, and to traps baited with the pheromones of A. eugenii and A. grandis. In both states and crops, traps baited with the A. musculus maleproduced compounds attracted the highest number of adults. Addition of the green leaf volatiles did not affect A. musculus attraction to its pheromone but skewed the sex ratio of the captured adults towards females. Although the role of plant volatiles in host-plant location by A. musculus is still unclear, our studies provide the first identification of the primary A. musculus aggregation pheromone components that can be used to monitor this pest in blueberry and cranberry pest management programs.

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Section: Resultsmentioning

confidence: 99%

Identification and Field Evaluation of Attractants for the Cranberry Weevil, Anthonomus musculus Say

et al. 2011

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“…Mixed effects have been attributed to this compound. Thus, it has been reported as a secondary odorant to the strawberry blossom weevil, Anthonomus rubi (Bichão et al, 2005).…”

Section: Discussionmentioning

confidence: 99%

Behavioral and electrophysiological responses of Hylastinus obscurus to volatiles released from the roots of Trifolium pratense L.

Palma

Mutis

Manosalva

et al. 2012

J. Soil Sci. Plant Nutr.

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Root volatiles from field-collected red clover plants, Trifolium pratense L., of five different ages were trapped by solid-phase microextraction (SPME) and analyzed by gas chromatography-mass spectrometry (GC-MS). Ethanol, E-2-hexenal, hexanal, 3-octanone, limonene and α-pinene were identified. The electroantennographic (EAG) and olfactometric responses of clover root borer, Hylastinus obscurus, to the identified compounds were studied. The GC-MS with SPME as a solvent-free collection method identified ethanol and hexanal compounds that have not previously been reported in T. pratense. The EAG experiments showed that all of the tested compounds were perceived by H. obscurus, but mixed responses were found in behavioral assays. For females, ethanol and E-2-hexenal were attractive at one or more of the tested doses, while hexanal, 3-octanone, R-limonene and S-limonene were repellent at one or more of the tested doses. Females responded to a larger number of tested compounds and a wider range doses compared to males. This behavior could reflect a more active role of females in host finding and colonization.

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“…However, funnel traps with A. rubi aggregation pheromones for monitoring are sold in United Kingdom and used by several farms. Bichão et al (2005a) showed that the neurons on the antenna of A. rubi are narrowly tuned by responses to a few structurally related sesquiterpenes, aromatics or monoterpenes. Five olfactory receptor types were identified according to which compound elicited the strongest neuron response.…”

Section: Introductionmentioning

confidence: 99%

“…The plant volatiles chosen for this study were (-)-germacrene D and 1,4-dimethoxybenzene. The first compound was tested because previous studies by Innocenzi et al (2001) and Bichão et al (2005a) showed that (-)-germacrene D was involved in the insect-plant relationship for A. rubi and its host. The second compound 1,4-dimethoxybenzene was chosen as test compound when the results of the present chemical analysis of wild strawberry plants [Fragaria vesca L. (Rosaceae)] were available.…”

Section: Introductionmentioning

confidence: 99%

Combining 1,4-dimethoxybenzene, the major flower volatile of wild strawberry Fragaria vesca, with the aggregation pheromone of the strawberry blossom weevil Anthonomus rubi improves attraction

et al. 2014

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a b s t r a c tThe aggregation pheromone of strawberry blossom weevil [Anthonomus rubi Herbst (Col.: Curculionidae)], a 1:4:1 blend of Grandlure I, II and racemic lavadulol, has been available for pest monitoring for several years but shows low attractancy. Attempts to control A. rubi using the pheromone alone were also unsuccessful. This paper reports the finding that addition of the major flower volatile from wild strawberry flowers [Fragaria vesca L. (Rosaceae)], 1,4-dimethoxybenzene (comprising 98% of the volatiles emitted from wild strawberry flowers), to the aggregation pheromone increased trap catches by over two fold compared to the pheromone alone. There was no significant difference between the response of overwintered or summer emerged adults. Field trials in 2007e2008 in central and southern Norway, Denmark and southern England used green funnel traps with white cross vanes for the evaluations. (-)-Germacrene D, previously shown to be emitted by plants in increased amounts in the presence of pheromone producing weevils, did not improve trap catches. Thus, the combined use of the aggregation pheromone and 1,4-dimethoxybenzene is promising for improved monitoring and possibly control of this important pest of strawberry.

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Five Types of Olfactory Receptor Neurons in the Strawberry Blossom Weevil Anthonomus rubi: Selective Responses to Inducible Host-plant Volatiles

Cited by 46 publications

References 39 publications

Identification and Field Evaluation of Attractants for the Cranberry Weevil, Anthonomus musculus Say

Identification and Field Evaluation of Attractants for the Cranberry Weevil, Anthonomus musculus Say

Behavioral and electrophysiological responses of Hylastinus obscurus to volatiles released from the roots of Trifolium pratense L.

Combining 1,4-dimethoxybenzene, the major flower volatile of wild strawberry Fragaria vesca, with the aggregation pheromone of the strawberry blossom weevil Anthonomus rubi improves attraction

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