Cargando…

Alarm Pheromones and Chemical Communication in Nymphs of the Tropical Bed Bug Cimex hemipterus (Hemiptera: Cimicidae)

The recent resurge of bed bug infestations (Cimex spp.; Cimicidae) and their resistance to commonly used pesticides calls for alternative methods of control. Pheromones play an important role in environmentally sustainable methods for the management of many pest insects and may therefore be applicab...

Descripción completa

Detalles Bibliográficos
Autores principales: Liedtke, H. Christoph, Åbjörnsson, Kajsa, Harraca, Vincent, Knudsen, Jette T., Wallin, Erika A., Hedenström, Erik, Ryne, Camilla
Formato: Texto
Lenguaje:English
Publicado: Public Library of Science 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3068171/
https://www.ncbi.nlm.nih.gov/pubmed/21479180
http://dx.doi.org/10.1371/journal.pone.0018156
_version_ 1782201200624533504
author Liedtke, H. Christoph
Åbjörnsson, Kajsa
Harraca, Vincent
Knudsen, Jette T.
Wallin, Erika A.
Hedenström, Erik
Ryne, Camilla
author_facet Liedtke, H. Christoph
Åbjörnsson, Kajsa
Harraca, Vincent
Knudsen, Jette T.
Wallin, Erika A.
Hedenström, Erik
Ryne, Camilla
author_sort Liedtke, H. Christoph
collection PubMed
description The recent resurge of bed bug infestations (Cimex spp.; Cimicidae) and their resistance to commonly used pesticides calls for alternative methods of control. Pheromones play an important role in environmentally sustainable methods for the management of many pest insects and may therefore be applicable for the control of bed bugs. The tropical bed bug, Cimex hemipterus, is a temporary ectoparasite on humans and causes severe discomfort. Compared to the common bed bug, Cimex lectularius, little is known about the chemical signalling and pheromone-based behaviour of the tropical species. Here, we show that the antennal morphology and volatile emission of C. hemipterus closely resembles those of C. lectularius and we test their behavioural responses to conspecific odour emissions. Two major volatiles are emitted by male, female and nymph C. hemipterus under stress, (E)-2-hexenal and (E)-2-octenal. Notably, nymph emissions show contrasting ratios of these compounds to adults and are further characterized by the addition of 4-oxo-(E)-2-hexenal and 4-oxo-(E)-2-octenal. The discovery of this nymph pheromone in C. hemipterus is potentially the cause of a repellent effect observed in the bio-tests, where nymph odours induce a significantly stronger repellent reaction in conspecifics than adult odours. Our results suggest that pheromone-based pest control methods developed for C. lectularius could be applicable to C. hemipterus, with the unique nymph blend showing promising practical properties.
format Text
id pubmed-3068171
institution National Center for Biotechnology Information
language English
publishDate 2011
publisher Public Library of Science
record_format MEDLINE/PubMed
spelling pubmed-30681712011-04-08 Alarm Pheromones and Chemical Communication in Nymphs of the Tropical Bed Bug Cimex hemipterus (Hemiptera: Cimicidae) Liedtke, H. Christoph Åbjörnsson, Kajsa Harraca, Vincent Knudsen, Jette T. Wallin, Erika A. Hedenström, Erik Ryne, Camilla PLoS One Research Article The recent resurge of bed bug infestations (Cimex spp.; Cimicidae) and their resistance to commonly used pesticides calls for alternative methods of control. Pheromones play an important role in environmentally sustainable methods for the management of many pest insects and may therefore be applicable for the control of bed bugs. The tropical bed bug, Cimex hemipterus, is a temporary ectoparasite on humans and causes severe discomfort. Compared to the common bed bug, Cimex lectularius, little is known about the chemical signalling and pheromone-based behaviour of the tropical species. Here, we show that the antennal morphology and volatile emission of C. hemipterus closely resembles those of C. lectularius and we test their behavioural responses to conspecific odour emissions. Two major volatiles are emitted by male, female and nymph C. hemipterus under stress, (E)-2-hexenal and (E)-2-octenal. Notably, nymph emissions show contrasting ratios of these compounds to adults and are further characterized by the addition of 4-oxo-(E)-2-hexenal and 4-oxo-(E)-2-octenal. The discovery of this nymph pheromone in C. hemipterus is potentially the cause of a repellent effect observed in the bio-tests, where nymph odours induce a significantly stronger repellent reaction in conspecifics than adult odours. Our results suggest that pheromone-based pest control methods developed for C. lectularius could be applicable to C. hemipterus, with the unique nymph blend showing promising practical properties. Public Library of Science 2011-03-30 /pmc/articles/PMC3068171/ /pubmed/21479180 http://dx.doi.org/10.1371/journal.pone.0018156 Text en Liedtke 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
Liedtke, H. Christoph
Åbjörnsson, Kajsa
Harraca, Vincent
Knudsen, Jette T.
Wallin, Erika A.
Hedenström, Erik
Ryne, Camilla
Alarm Pheromones and Chemical Communication in Nymphs of the Tropical Bed Bug Cimex hemipterus (Hemiptera: Cimicidae)
title Alarm Pheromones and Chemical Communication in Nymphs of the Tropical Bed Bug Cimex hemipterus (Hemiptera: Cimicidae)
title_full Alarm Pheromones and Chemical Communication in Nymphs of the Tropical Bed Bug Cimex hemipterus (Hemiptera: Cimicidae)
title_fullStr Alarm Pheromones and Chemical Communication in Nymphs of the Tropical Bed Bug Cimex hemipterus (Hemiptera: Cimicidae)
title_full_unstemmed Alarm Pheromones and Chemical Communication in Nymphs of the Tropical Bed Bug Cimex hemipterus (Hemiptera: Cimicidae)
title_short Alarm Pheromones and Chemical Communication in Nymphs of the Tropical Bed Bug Cimex hemipterus (Hemiptera: Cimicidae)
title_sort alarm pheromones and chemical communication in nymphs of the tropical bed bug cimex hemipterus (hemiptera: cimicidae)
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3068171/
https://www.ncbi.nlm.nih.gov/pubmed/21479180
http://dx.doi.org/10.1371/journal.pone.0018156
work_keys_str_mv AT liedtkehchristoph alarmpheromonesandchemicalcommunicationinnymphsofthetropicalbedbugcimexhemipterushemipteracimicidae
AT abjornssonkajsa alarmpheromonesandchemicalcommunicationinnymphsofthetropicalbedbugcimexhemipterushemipteracimicidae
AT harracavincent alarmpheromonesandchemicalcommunicationinnymphsofthetropicalbedbugcimexhemipterushemipteracimicidae
AT knudsenjettet alarmpheromonesandchemicalcommunicationinnymphsofthetropicalbedbugcimexhemipterushemipteracimicidae
AT wallinerikaa alarmpheromonesandchemicalcommunicationinnymphsofthetropicalbedbugcimexhemipterushemipteracimicidae
AT hedenstromerik alarmpheromonesandchemicalcommunicationinnymphsofthetropicalbedbugcimexhemipterushemipteracimicidae
AT rynecamilla alarmpheromonesandchemicalcommunicationinnymphsofthetropicalbedbugcimexhemipterushemipteracimicidae