Ordinary glomeruli in the antennal lobe of male and female tortricid moth Grapholita molesta (Busck) (Lepidoptera: Tortricidae) process sex pheromone and host-plant volatiles

Both sexes of Grapholita molesta, a key pest of stone fruits, are able to detect host-plant volatiles and the sex pheromone emitted by females, and to modify their behaviour accordingly. How olfactory information is processed in the central nervous system is unknown. Intracellular recordings and sta...

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Autores: Varela, Nelia, Avilla Hernández, Jesús, Gemeno Marín, César, Anton, Sylvia
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2011
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10459.1/49009
Acceso en línea:https://doi.org/10.1242/jeb.047316
http://hdl.handle.net/10459.1/49009
Access Level:acceso abierto
Palabra clave:Grapholita molesta
Olfaction
Antennal lobe
Pheromone
Feromones
Lepidòpters
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spelling Ordinary glomeruli in the antennal lobe of male and female tortricid moth Grapholita molesta (Busck) (Lepidoptera: Tortricidae) process sex pheromone and host-plant volatilesVarela, NeliaAvilla Hernández, JesúsGemeno Marín, CésarAnton, SylviaGrapholita molestaOlfactionAntennal lobePheromoneFeromonesLepidòptersBoth sexes of Grapholita molesta, a key pest of stone fruits, are able to detect host-plant volatiles and the sex pheromone emitted by females, and to modify their behaviour accordingly. How olfactory information is processed in the central nervous system is unknown. Intracellular recordings and stainings were used to characterize antennal lobe (AL) neuron responses to single pheromone components, a behaviourally active blend of five peach volatiles and a pear-fruit ester. AL neurons with different response patterns responded to pheromone components and plant volatiles. In males more neurons responded specifically to the main pheromone component than in females, whereas neurons responding to all three pheromone components were more abundant in females. Neurons responding to all three pheromone components often responded also to the tested plant volatiles in both sexes. Responses to all pheromone components were dose dependent in males and females, but dose-response relationships differed between neurons and tested pheromone components. Among the five AL projection neurons identified neuroanatomically in males, no arborizations were observed in the enlarged cumulus (Cu), although all of them responded to pheromone compounds. In one of two stained projection neurons in females, however, the glomerulus, which is thought to be homologous to the Cu, was targeted. The processing of pheromone information by ordinary glomeruli rather than by the macroglomerular complex is thus a striking feature of this species, indicating that pheromone and plant volatile processing are not entirely separate in this tortricid moth AL. However, the absence of recorded pheromone responses in the Cu needs to be confirmed.We thank Jean-Pierre Rospars, Rickard Ignell and two anonymous referees for helpful comments on the manuscript. This study was supported by research grants from INRA (Projet Jeune Equipe and Projet S.P.E.) to S.A., and from the Spanish Ministry of Education and Science (research grant AGL2007-62366/AGR) to J.A. and C.G. N.V. was financed by fellowship no. BES-2005-7605 from the Spanish Ministry of Educations and Science.Company of Biologists Ltd.2011info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://doi.org/10.1242/jeb.047316http://hdl.handle.net/10459.1/49009reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)Inglésinfo:eu-repo/grantAgreement/MEC//AGL2007-62366Reproducció del document publicat a https://doi.org/10.1242/jeb.047316Journal of Experimental Biology, 2011, vol. 214, núm.4, p. 637-645(c) Company of Biologists Ltd., 2011info:eu-repo/semantics/openAccessoai:recercat.cat:10459.1/490092026-05-29T05:05:01Z
dc.title.none.fl_str_mv Ordinary glomeruli in the antennal lobe of male and female tortricid moth Grapholita molesta (Busck) (Lepidoptera: Tortricidae) process sex pheromone and host-plant volatiles
title Ordinary glomeruli in the antennal lobe of male and female tortricid moth Grapholita molesta (Busck) (Lepidoptera: Tortricidae) process sex pheromone and host-plant volatiles
spellingShingle Ordinary glomeruli in the antennal lobe of male and female tortricid moth Grapholita molesta (Busck) (Lepidoptera: Tortricidae) process sex pheromone and host-plant volatiles
Varela, Nelia
Grapholita molesta
Olfaction
Antennal lobe
Pheromone
Feromones
Lepidòpters
title_short Ordinary glomeruli in the antennal lobe of male and female tortricid moth Grapholita molesta (Busck) (Lepidoptera: Tortricidae) process sex pheromone and host-plant volatiles
title_full Ordinary glomeruli in the antennal lobe of male and female tortricid moth Grapholita molesta (Busck) (Lepidoptera: Tortricidae) process sex pheromone and host-plant volatiles
title_fullStr Ordinary glomeruli in the antennal lobe of male and female tortricid moth Grapholita molesta (Busck) (Lepidoptera: Tortricidae) process sex pheromone and host-plant volatiles
title_full_unstemmed Ordinary glomeruli in the antennal lobe of male and female tortricid moth Grapholita molesta (Busck) (Lepidoptera: Tortricidae) process sex pheromone and host-plant volatiles
title_sort Ordinary glomeruli in the antennal lobe of male and female tortricid moth Grapholita molesta (Busck) (Lepidoptera: Tortricidae) process sex pheromone and host-plant volatiles
dc.creator.none.fl_str_mv Varela, Nelia
Avilla Hernández, Jesús
Gemeno Marín, César
Anton, Sylvia
author Varela, Nelia
author_facet Varela, Nelia
Avilla Hernández, Jesús
Gemeno Marín, César
Anton, Sylvia
author_role author
author2 Avilla Hernández, Jesús
Gemeno Marín, César
Anton, Sylvia
author2_role author
author
author
dc.subject.none.fl_str_mv Grapholita molesta
Olfaction
Antennal lobe
Pheromone
Feromones
Lepidòpters
topic Grapholita molesta
Olfaction
Antennal lobe
Pheromone
Feromones
Lepidòpters
description Both sexes of Grapholita molesta, a key pest of stone fruits, are able to detect host-plant volatiles and the sex pheromone emitted by females, and to modify their behaviour accordingly. How olfactory information is processed in the central nervous system is unknown. Intracellular recordings and stainings were used to characterize antennal lobe (AL) neuron responses to single pheromone components, a behaviourally active blend of five peach volatiles and a pear-fruit ester. AL neurons with different response patterns responded to pheromone components and plant volatiles. In males more neurons responded specifically to the main pheromone component than in females, whereas neurons responding to all three pheromone components were more abundant in females. Neurons responding to all three pheromone components often responded also to the tested plant volatiles in both sexes. Responses to all pheromone components were dose dependent in males and females, but dose-response relationships differed between neurons and tested pheromone components. Among the five AL projection neurons identified neuroanatomically in males, no arborizations were observed in the enlarged cumulus (Cu), although all of them responded to pheromone compounds. In one of two stained projection neurons in females, however, the glomerulus, which is thought to be homologous to the Cu, was targeted. The processing of pheromone information by ordinary glomeruli rather than by the macroglomerular complex is thus a striking feature of this species, indicating that pheromone and plant volatile processing are not entirely separate in this tortricid moth AL. However, the absence of recorded pheromone responses in the Cu needs to be confirmed.
publishDate 2011
dc.date.none.fl_str_mv 2011
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.1242/jeb.047316
http://hdl.handle.net/10459.1/49009
url https://doi.org/10.1242/jeb.047316
http://hdl.handle.net/10459.1/49009
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MEC//AGL2007-62366
Reproducció del document publicat a https://doi.org/10.1242/jeb.047316
Journal of Experimental Biology, 2011, vol. 214, núm.4, p. 637-645
dc.rights.none.fl_str_mv (c) Company of Biologists Ltd., 2011
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Company of Biologists Ltd., 2011
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Company of Biologists Ltd.
publisher.none.fl_str_mv Company of Biologists Ltd.
dc.source.none.fl_str_mv reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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