Volatile Organic Compounds from the Clone Populus x canadensis “Conti” Associated with Megaplatypus mutatus Attack
Megaplatypus mutatus (Chapuis) (Coleoptera, Platypodidae) is an ambrosia beetle native to South America. It builds internal galleries that weaken the tree trunks, causing them severe stem breakage and mortality in commercial poplar plantations. The host selection by male M. mutatus has previously be...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Psyche: A Journal of Entomology |
| Online Access: | http://dx.doi.org/10.1155/2014/793298 |
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| author | Alejandro Lucia Paola González-Audino Héctor Masuh |
| author_facet | Alejandro Lucia Paola González-Audino Héctor Masuh |
| author_sort | Alejandro Lucia |
| collection | DOAJ |
| description | Megaplatypus mutatus (Chapuis) (Coleoptera, Platypodidae) is an ambrosia beetle native to South America. It builds internal galleries that weaken the tree trunks, causing them severe stem breakage and mortality in commercial poplar plantations. The host selection by male M. mutatus has previously been correlated with the increasing diameter. This work explores the possibility that differential susceptibility of individual plants to M. mutatus could be associated with volatiles emitted. The comparison of the VOCs profiles of attacked and nonattacked P. x canadensis “Conti” 12 during M. mutatus flying season showed both qualitative and quantitative differences. The attacked plants, but not the nonattacked ones, showed the following compounds: a long chain aldehyde, α-ylangene, δ-cadinene, α-gurjunene, and β-cubebene; on the other side, β-sesquiphellandrene and β-chamigrene were detected only in nonattacked plants. α-Copaene is a common component of all the samples analyzed, but its proportion is increased in attacked individuals. Behavioral bioassays showed that males but not females M. mutatus are attracted to α-copaene. The relative increase of α-copaene in attacked individuals and the positive behavioral answer of males to it suggest that this compound could play a role in the orientation of the pioneer male towards the most suitable host. |
| format | Article |
| id | doaj-art-a58f3bd3373447af9dbd5b2fab0f3be0 |
| institution | Kabale University |
| issn | 0033-2615 1687-7438 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Psyche: A Journal of Entomology |
| spelling | doaj-art-a58f3bd3373447af9dbd5b2fab0f3be02025-02-03T05:47:29ZengWileyPsyche: A Journal of Entomology0033-26151687-74382014-01-01201410.1155/2014/793298793298Volatile Organic Compounds from the Clone Populus x canadensis “Conti” Associated with Megaplatypus mutatus AttackAlejandro Lucia0Paola González-Audino1Héctor Masuh2Centro de Investigaciones de Plagas e Insecticidas (UNIDEF (MINDEF-CONICET), J. B. de La Salle 4397, Villa Martelli B1603ALO, Provincia de Buenos Aires, ArgentinaCentro de Investigaciones de Plagas e Insecticidas (UNIDEF (MINDEF-CONICET), J. B. de La Salle 4397, Villa Martelli B1603ALO, Provincia de Buenos Aires, ArgentinaCentro de Investigaciones de Plagas e Insecticidas (UNIDEF (MINDEF-CONICET), J. B. de La Salle 4397, Villa Martelli B1603ALO, Provincia de Buenos Aires, ArgentinaMegaplatypus mutatus (Chapuis) (Coleoptera, Platypodidae) is an ambrosia beetle native to South America. It builds internal galleries that weaken the tree trunks, causing them severe stem breakage and mortality in commercial poplar plantations. The host selection by male M. mutatus has previously been correlated with the increasing diameter. This work explores the possibility that differential susceptibility of individual plants to M. mutatus could be associated with volatiles emitted. The comparison of the VOCs profiles of attacked and nonattacked P. x canadensis “Conti” 12 during M. mutatus flying season showed both qualitative and quantitative differences. The attacked plants, but not the nonattacked ones, showed the following compounds: a long chain aldehyde, α-ylangene, δ-cadinene, α-gurjunene, and β-cubebene; on the other side, β-sesquiphellandrene and β-chamigrene were detected only in nonattacked plants. α-Copaene is a common component of all the samples analyzed, but its proportion is increased in attacked individuals. Behavioral bioassays showed that males but not females M. mutatus are attracted to α-copaene. The relative increase of α-copaene in attacked individuals and the positive behavioral answer of males to it suggest that this compound could play a role in the orientation of the pioneer male towards the most suitable host.http://dx.doi.org/10.1155/2014/793298 |
| spellingShingle | Alejandro Lucia Paola González-Audino Héctor Masuh Volatile Organic Compounds from the Clone Populus x canadensis “Conti” Associated with Megaplatypus mutatus Attack Psyche: A Journal of Entomology |
| title | Volatile Organic Compounds from the Clone Populus x canadensis “Conti” Associated with Megaplatypus mutatus Attack |
| title_full | Volatile Organic Compounds from the Clone Populus x canadensis “Conti” Associated with Megaplatypus mutatus Attack |
| title_fullStr | Volatile Organic Compounds from the Clone Populus x canadensis “Conti” Associated with Megaplatypus mutatus Attack |
| title_full_unstemmed | Volatile Organic Compounds from the Clone Populus x canadensis “Conti” Associated with Megaplatypus mutatus Attack |
| title_short | Volatile Organic Compounds from the Clone Populus x canadensis “Conti” Associated with Megaplatypus mutatus Attack |
| title_sort | volatile organic compounds from the clone populus x canadensis conti associated with megaplatypus mutatus attack |
| url | http://dx.doi.org/10.1155/2014/793298 |
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