The response of the blood-sucking bug Triatoma infestans to carbon dioxide and other host odours
Behavioural responses of Triatoma infestans larvae to carbon dioxide and other odours of vertebrate origin were investigated in a locomotion compensator. T. infestans oriented towards airstreams enriched with carbon dioxide exhibiting a threshold response between 300 and 400 p.p.m. above the ambient...
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todo:paper_0379864X_v29_n4_p319_Barrozo2023-10-03T15:33:41Z The response of the blood-sucking bug Triatoma infestans to carbon dioxide and other host odours Barrozo, R.B. Lazzari, C.R. Behaviour Carbon dioxide Chagas' disease Host location Semiochemicals Triatoma infestans 1 octen 3 ol carbon dioxide lactic acid octanol unclassified drug 1-octen-3-ol carbon dioxide lactic acid octanol article behavior controlled study host parasite interaction night vision nonhuman olfactory discrimination olfactory receptor priority journal smelling stimulus response Triatoma infestans animal feeding behavior human odor perceptive threshold physiology starvation Triatoma Hexapoda Triatoma infestans Vertebrata Animals Carbon Dioxide Feeding Behavior Host-Parasite Relations Humans Lactic Acid Octanols Odors Sensory Thresholds Starvation Triatoma Behavioural responses of Triatoma infestans larvae to carbon dioxide and other odours of vertebrate origin were investigated in a locomotion compensator. T. infestans oriented towards airstreams enriched with carbon dioxide exhibiting a threshold response between 300 and 400 p.p.m. above the ambient CO2 background. The accuracy of the oriented response to carbon dioxide improved with stimulus intensity. Remarkably, insects did not show any change in their sensitivity threshold to carbon dioxide with the starvation time. The attractiveness to carbon dioxide depended on the time of the day, i.e. these nocturnal bugs only oriented towards carbon dioxide-loaded airstreams during the first hours of the scotophase. L-lactic acid did not evoke oriented responses when it was presented as a single stimulus in a wide range of intensities. However, a marked synergism was evident when L-lactic acid was combined with a sub-threshold concentration of carbon dioxide. Under this condition, the threshold response to carbon dioxide decreased to 75-150 p.p.m. above ambient CO2 background. The isomer D-lactic acid evoked no response, either alone or in combination with carbon dioxide. When insects were stimulated with 1-octen-3-ol a significant positive orientation was found. This response was not modified by the addition of carbon dioxide. © Oxford University Press 2004; all rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0379864X_v29_n4_p319_Barrozo |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Behaviour Carbon dioxide Chagas' disease Host location Semiochemicals Triatoma infestans 1 octen 3 ol carbon dioxide lactic acid octanol unclassified drug 1-octen-3-ol carbon dioxide lactic acid octanol article behavior controlled study host parasite interaction night vision nonhuman olfactory discrimination olfactory receptor priority journal smelling stimulus response Triatoma infestans animal feeding behavior human odor perceptive threshold physiology starvation Triatoma Hexapoda Triatoma infestans Vertebrata Animals Carbon Dioxide Feeding Behavior Host-Parasite Relations Humans Lactic Acid Octanols Odors Sensory Thresholds Starvation Triatoma |
| spellingShingle |
Behaviour Carbon dioxide Chagas' disease Host location Semiochemicals Triatoma infestans 1 octen 3 ol carbon dioxide lactic acid octanol unclassified drug 1-octen-3-ol carbon dioxide lactic acid octanol article behavior controlled study host parasite interaction night vision nonhuman olfactory discrimination olfactory receptor priority journal smelling stimulus response Triatoma infestans animal feeding behavior human odor perceptive threshold physiology starvation Triatoma Hexapoda Triatoma infestans Vertebrata Animals Carbon Dioxide Feeding Behavior Host-Parasite Relations Humans Lactic Acid Octanols Odors Sensory Thresholds Starvation Triatoma Barrozo, R.B. Lazzari, C.R. The response of the blood-sucking bug Triatoma infestans to carbon dioxide and other host odours |
| topic_facet |
Behaviour Carbon dioxide Chagas' disease Host location Semiochemicals Triatoma infestans 1 octen 3 ol carbon dioxide lactic acid octanol unclassified drug 1-octen-3-ol carbon dioxide lactic acid octanol article behavior controlled study host parasite interaction night vision nonhuman olfactory discrimination olfactory receptor priority journal smelling stimulus response Triatoma infestans animal feeding behavior human odor perceptive threshold physiology starvation Triatoma Hexapoda Triatoma infestans Vertebrata Animals Carbon Dioxide Feeding Behavior Host-Parasite Relations Humans Lactic Acid Octanols Odors Sensory Thresholds Starvation Triatoma |
| description |
Behavioural responses of Triatoma infestans larvae to carbon dioxide and other odours of vertebrate origin were investigated in a locomotion compensator. T. infestans oriented towards airstreams enriched with carbon dioxide exhibiting a threshold response between 300 and 400 p.p.m. above the ambient CO2 background. The accuracy of the oriented response to carbon dioxide improved with stimulus intensity. Remarkably, insects did not show any change in their sensitivity threshold to carbon dioxide with the starvation time. The attractiveness to carbon dioxide depended on the time of the day, i.e. these nocturnal bugs only oriented towards carbon dioxide-loaded airstreams during the first hours of the scotophase. L-lactic acid did not evoke oriented responses when it was presented as a single stimulus in a wide range of intensities. However, a marked synergism was evident when L-lactic acid was combined with a sub-threshold concentration of carbon dioxide. Under this condition, the threshold response to carbon dioxide decreased to 75-150 p.p.m. above ambient CO2 background. The isomer D-lactic acid evoked no response, either alone or in combination with carbon dioxide. When insects were stimulated with 1-octen-3-ol a significant positive orientation was found. This response was not modified by the addition of carbon dioxide. © Oxford University Press 2004; all rights reserved. |
| format |
JOUR |
| author |
Barrozo, R.B. Lazzari, C.R. |
| author_facet |
Barrozo, R.B. Lazzari, C.R. |
| author_sort |
Barrozo, R.B. |
| title |
The response of the blood-sucking bug Triatoma infestans to carbon dioxide and other host odours |
| title_short |
The response of the blood-sucking bug Triatoma infestans to carbon dioxide and other host odours |
| title_full |
The response of the blood-sucking bug Triatoma infestans to carbon dioxide and other host odours |
| title_fullStr |
The response of the blood-sucking bug Triatoma infestans to carbon dioxide and other host odours |
| title_full_unstemmed |
The response of the blood-sucking bug Triatoma infestans to carbon dioxide and other host odours |
| title_sort |
response of the blood-sucking bug triatoma infestans to carbon dioxide and other host odours |
| url |
http://hdl.handle.net/20.500.12110/paper_0379864X_v29_n4_p319_Barrozo |
| work_keys_str_mv |
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