Female odours promote the activation of sheltered kissing bug Rhodnius prolixus males and modulate their orientation

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The existence of a pheromone emitted during copulation has been reported for Rhodnius prolixus (Hemiptera: Reduviidae) Stål. Adults possess one pair of metasternal glands (MGs) from which female R. prolixus release volatiles mainly at night. We investigated whether these volatiles emitted by adult R...

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Autores principales: Pontes, G., Zacharias, C.A., Manrique, G., Lorenzo, M.G.
Formato: INPR
Lenguaje:English
Materias:
Chemical signals
Locomotor activity
Metasternal glands
Sex pheromone
Shelter
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_0269283X_v_n_p_Pontes
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_0269283X_v_n_p_Pontes2023-10-03T15:14:10Z Female odours promote the activation of sheltered kissing bug Rhodnius prolixus males and modulate their orientation Pontes, G. Zacharias, C.A. Manrique, G. Lorenzo, M.G. Chemical signals Locomotor activity Metasternal glands Sex pheromone Shelter The existence of a pheromone emitted during copulation has been reported for Rhodnius prolixus (Hemiptera: Reduviidae) Stål. Adults possess one pair of metasternal glands (MGs) from which female R. prolixus release volatiles mainly at night. We investigated whether these volatiles emitted by adult R. prolixus can modulate sexual-related behaviours of opposite and/or same sex individuals. We first used a shelter bioassay to test if adult activity patterns can be affected by chemical signals emitted by opposite sex conspecifics. We observed that males left the shelter more frequently in the presence of females, showing higher activity and an increase of intrasexual copulation attempts. Females showed no shelter-related activation in the presence of male odours. Second, we used a locomotion compensator device to investigate whether females or males show oriented responses to odours emitted by adults. We found that males oriented towards air currents carrying female odours but females did not orient towards odours emitted by adults. Finally, we observed that males oriented towards the female MG compounds. Thus, a volatile chemical signal emitted by females from their MGs promoted the activation of sheltered males and modulated orientation to air currents. © 2013 The Royal Entomological Society. Fil:Zacharias, C.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Manrique, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Lorenzo, M.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. INPR English info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0269283X_v_n_p_Pontes
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language English
orig_language_str_mv English
topic Chemical signals
Locomotor activity
Metasternal glands
Sex pheromone
Shelter
spellingShingle Chemical signals
Locomotor activity
Metasternal glands
Sex pheromone
Shelter
Pontes, G.
Zacharias, C.A.
Manrique, G.
Lorenzo, M.G.
Female odours promote the activation of sheltered kissing bug Rhodnius prolixus males and modulate their orientation
topic_facet Chemical signals
Locomotor activity
Metasternal glands
Sex pheromone
Shelter
description The existence of a pheromone emitted during copulation has been reported for Rhodnius prolixus (Hemiptera: Reduviidae) Stål. Adults possess one pair of metasternal glands (MGs) from which female R. prolixus release volatiles mainly at night. We investigated whether these volatiles emitted by adult R. prolixus can modulate sexual-related behaviours of opposite and/or same sex individuals. We first used a shelter bioassay to test if adult activity patterns can be affected by chemical signals emitted by opposite sex conspecifics. We observed that males left the shelter more frequently in the presence of females, showing higher activity and an increase of intrasexual copulation attempts. Females showed no shelter-related activation in the presence of male odours. Second, we used a locomotion compensator device to investigate whether females or males show oriented responses to odours emitted by adults. We found that males oriented towards air currents carrying female odours but females did not orient towards odours emitted by adults. Finally, we observed that males oriented towards the female MG compounds. Thus, a volatile chemical signal emitted by females from their MGs promoted the activation of sheltered males and modulated orientation to air currents. © 2013 The Royal Entomological Society.
format INPR
author Pontes, G.
Zacharias, C.A.
Manrique, G.
Lorenzo, M.G.
author_facet Pontes, G.
Zacharias, C.A.
Manrique, G.
Lorenzo, M.G.
author_sort Pontes, G.
title Female odours promote the activation of sheltered kissing bug Rhodnius prolixus males and modulate their orientation
title_short Female odours promote the activation of sheltered kissing bug Rhodnius prolixus males and modulate their orientation
title_full Female odours promote the activation of sheltered kissing bug Rhodnius prolixus males and modulate their orientation
title_fullStr Female odours promote the activation of sheltered kissing bug Rhodnius prolixus males and modulate their orientation
title_full_unstemmed Female odours promote the activation of sheltered kissing bug Rhodnius prolixus males and modulate their orientation
title_sort female odours promote the activation of sheltered kissing bug rhodnius prolixus males and modulate their orientation
url http://hdl.handle.net/20.500.12110/paper_0269283X_v_n_p_Pontes
work_keys_str_mv AT pontesg femaleodourspromotetheactivationofshelteredkissingbugrhodniusprolixusmalesandmodulatetheirorientation
AT zachariasca femaleodourspromotetheactivationofshelteredkissingbugrhodniusprolixusmalesandmodulatetheirorientation
AT manriqueg femaleodourspromotetheactivationofshelteredkissingbugrhodniusprolixusmalesandmodulatetheirorientation
AT lorenzomg femaleodourspromotetheactivationofshelteredkissingbugrhodniusprolixusmalesandmodulatetheirorientation
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