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Identification of the Aggregation Pheromone of the Melon Thrips, Thrips palmi

The objective of this study was to identify the aggregation pheromone of the melon thrips Thrips palmi, a major pest of vegetable and ornamental plants around the world. The species causes damage both through feeding activities and as a vector of tospoviruses, and is a threat to world trade and Euro...

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Autores principales: Akella, Sudhakar V. S., Kirk, William D. J., Lu, Yao-bin, Murai, Tamotsu, Walters, Keith F. A., Hamilton, James G. C.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4125133/
https://www.ncbi.nlm.nih.gov/pubmed/25101871
http://dx.doi.org/10.1371/journal.pone.0103315
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author Akella, Sudhakar V. S.
Kirk, William D. J.
Lu, Yao-bin
Murai, Tamotsu
Walters, Keith F. A.
Hamilton, James G. C.
author_facet Akella, Sudhakar V. S.
Kirk, William D. J.
Lu, Yao-bin
Murai, Tamotsu
Walters, Keith F. A.
Hamilton, James G. C.
author_sort Akella, Sudhakar V. S.
collection PubMed
description The objective of this study was to identify the aggregation pheromone of the melon thrips Thrips palmi, a major pest of vegetable and ornamental plants around the world. The species causes damage both through feeding activities and as a vector of tospoviruses, and is a threat to world trade and European horticulture. Improved methods of detecting and controlling this species are needed and the identification of an aggregation pheromone will contribute to this requirement. Bioassays with a Y-tube olfactometer showed that virgin female T. palmi were attracted to the odour of live males, but not to that of live females, and that mixed-age adults of both sexes were attracted to the odour of live males, indicating the presence of a male-produced aggregation pheromone. Examination of the headspace volatiles of adult male T. palmi revealed only one compound that was not found in adult females. It was identified by comparison of its mass spectrum and chromatographic details with those of similar compounds. This compound had a structure like that of the previously identified male-produced aggregation pheromone of the western flower thrips Frankliniella occidentalis. The compound was synthesised and tested in eggplant crops infested with T. palmi in Japan. Significantly greater numbers of both males and females were attracted to traps baited with the putative aggregation pheromone compared to unbaited traps. The aggregation pheromone of T. palmi is thus identified as (R)-lavandulyl 3-methyl-3-butenoate by spectroscopic, chromatographic and behavioural analysis.
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spelling pubmed-41251332014-08-12 Identification of the Aggregation Pheromone of the Melon Thrips, Thrips palmi Akella, Sudhakar V. S. Kirk, William D. J. Lu, Yao-bin Murai, Tamotsu Walters, Keith F. A. Hamilton, James G. C. PLoS One Research Article The objective of this study was to identify the aggregation pheromone of the melon thrips Thrips palmi, a major pest of vegetable and ornamental plants around the world. The species causes damage both through feeding activities and as a vector of tospoviruses, and is a threat to world trade and European horticulture. Improved methods of detecting and controlling this species are needed and the identification of an aggregation pheromone will contribute to this requirement. Bioassays with a Y-tube olfactometer showed that virgin female T. palmi were attracted to the odour of live males, but not to that of live females, and that mixed-age adults of both sexes were attracted to the odour of live males, indicating the presence of a male-produced aggregation pheromone. Examination of the headspace volatiles of adult male T. palmi revealed only one compound that was not found in adult females. It was identified by comparison of its mass spectrum and chromatographic details with those of similar compounds. This compound had a structure like that of the previously identified male-produced aggregation pheromone of the western flower thrips Frankliniella occidentalis. The compound was synthesised and tested in eggplant crops infested with T. palmi in Japan. Significantly greater numbers of both males and females were attracted to traps baited with the putative aggregation pheromone compared to unbaited traps. The aggregation pheromone of T. palmi is thus identified as (R)-lavandulyl 3-methyl-3-butenoate by spectroscopic, chromatographic and behavioural analysis. Public Library of Science 2014-08-07 /pmc/articles/PMC4125133/ /pubmed/25101871 http://dx.doi.org/10.1371/journal.pone.0103315 Text en © 2014 Sudhakar et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Akella, Sudhakar V. S.
Kirk, William D. J.
Lu, Yao-bin
Murai, Tamotsu
Walters, Keith F. A.
Hamilton, James G. C.
Identification of the Aggregation Pheromone of the Melon Thrips, Thrips palmi
title Identification of the Aggregation Pheromone of the Melon Thrips, Thrips palmi
title_full Identification of the Aggregation Pheromone of the Melon Thrips, Thrips palmi
title_fullStr Identification of the Aggregation Pheromone of the Melon Thrips, Thrips palmi
title_full_unstemmed Identification of the Aggregation Pheromone of the Melon Thrips, Thrips palmi
title_short Identification of the Aggregation Pheromone of the Melon Thrips, Thrips palmi
title_sort identification of the aggregation pheromone of the melon thrips, thrips palmi
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4125133/
https://www.ncbi.nlm.nih.gov/pubmed/25101871
http://dx.doi.org/10.1371/journal.pone.0103315
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