Experience-dependent modulation of the attraction to faeces in the kissing bug Triatoma infestans
Triatoma infestans is the main vector of the Chagas disease in Latin America. These nocturnal bugs spend most of the daylight hours aggregated with conspecifics inside crevices in roofs and walls. Around the entrances of the shelters T. infestans deposits faeces that contain chemical cues that attra...
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221910_v98_n_p23_Mengoni http://hdl.handle.net/20.500.12110/paper_00221910_v98_n_p23_Mengoni |
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paper:paper_00221910_v98_n_p23_Mengoni2023-06-08T14:47:18Z Experience-dependent modulation of the attraction to faeces in the kissing bug Triatoma infestans Lorenzo Figueiras, Alicia Nieves Minoli, Sebastián A. Aggregation Faeces Learning Plasticity Triatoma infestans aggregation behavior attractant Chagas disease chemical cue conspecific developmental stage disease vector feces innate behavior insect learning phenotypic plasticity Latin America Hexapoda Triatoma infestans Triatominae animal association chemistry chemotaxis feces growth, development and aging learning memory nymph physiology Triatoma Animals Chemotaxis Cues Feces Learning Memory Nymph Triatoma Triatoma infestans is the main vector of the Chagas disease in Latin America. These nocturnal bugs spend most of the daylight hours aggregated with conspecifics inside crevices in roofs and walls. Around the entrances of the shelters T. infestans deposits faeces that contain chemical cues that attract conspecifics. In this work we investigated whether attraction to faeces can be modulated by experience in this insect species. First, we analyzed if the attraction of nymphs to faeces is innate or acquired through previous sensory experiences. Results show that after hatching, 1st instar nymphs are attracted to faeces even if they had never been in contact with them before, thus indicating that this attraction is innate. Second, we studied if attraction to faeces can be influenced by the presence of con-specifics. No differences were found in the attraction to faeces of nymphs released alone or in groups, suggesting that attraction to faeces is independent of the presence of other individuals. Third, we examined if the innate response to faeces of nymphs can be modulated by experience. After pre-exposing nymphs to faeces during 24 h, insects were no longer attracted to faeces. Finally, by pairing the presence of faeces with an aversive mechanical disturbance, nymphs switched from attraction to avoidance of faeces. These results show that although faeces attraction has a strong innate component, it can be modulated by experience. The learning and memory capacities of triatomines have been studied only recently, and our work is the first report on the effects of experience in the aggregation context. © 2016 Elsevier Ltd Fil:Lorenzo-Figueiras, A.N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Minoli, S.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2017 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221910_v98_n_p23_Mengoni http://hdl.handle.net/20.500.12110/paper_00221910_v98_n_p23_Mengoni |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Aggregation Faeces Learning Plasticity Triatoma infestans aggregation behavior attractant Chagas disease chemical cue conspecific developmental stage disease vector feces innate behavior insect learning phenotypic plasticity Latin America Hexapoda Triatoma infestans Triatominae animal association chemistry chemotaxis feces growth, development and aging learning memory nymph physiology Triatoma Animals Chemotaxis Cues Feces Learning Memory Nymph Triatoma |
| spellingShingle |
Aggregation Faeces Learning Plasticity Triatoma infestans aggregation behavior attractant Chagas disease chemical cue conspecific developmental stage disease vector feces innate behavior insect learning phenotypic plasticity Latin America Hexapoda Triatoma infestans Triatominae animal association chemistry chemotaxis feces growth, development and aging learning memory nymph physiology Triatoma Animals Chemotaxis Cues Feces Learning Memory Nymph Triatoma Lorenzo Figueiras, Alicia Nieves Minoli, Sebastián A. Experience-dependent modulation of the attraction to faeces in the kissing bug Triatoma infestans |
| topic_facet |
Aggregation Faeces Learning Plasticity Triatoma infestans aggregation behavior attractant Chagas disease chemical cue conspecific developmental stage disease vector feces innate behavior insect learning phenotypic plasticity Latin America Hexapoda Triatoma infestans Triatominae animal association chemistry chemotaxis feces growth, development and aging learning memory nymph physiology Triatoma Animals Chemotaxis Cues Feces Learning Memory Nymph Triatoma |
| description |
Triatoma infestans is the main vector of the Chagas disease in Latin America. These nocturnal bugs spend most of the daylight hours aggregated with conspecifics inside crevices in roofs and walls. Around the entrances of the shelters T. infestans deposits faeces that contain chemical cues that attract conspecifics. In this work we investigated whether attraction to faeces can be modulated by experience in this insect species. First, we analyzed if the attraction of nymphs to faeces is innate or acquired through previous sensory experiences. Results show that after hatching, 1st instar nymphs are attracted to faeces even if they had never been in contact with them before, thus indicating that this attraction is innate. Second, we studied if attraction to faeces can be influenced by the presence of con-specifics. No differences were found in the attraction to faeces of nymphs released alone or in groups, suggesting that attraction to faeces is independent of the presence of other individuals. Third, we examined if the innate response to faeces of nymphs can be modulated by experience. After pre-exposing nymphs to faeces during 24 h, insects were no longer attracted to faeces. Finally, by pairing the presence of faeces with an aversive mechanical disturbance, nymphs switched from attraction to avoidance of faeces. These results show that although faeces attraction has a strong innate component, it can be modulated by experience. The learning and memory capacities of triatomines have been studied only recently, and our work is the first report on the effects of experience in the aggregation context. © 2016 Elsevier Ltd |
| author |
Lorenzo Figueiras, Alicia Nieves Minoli, Sebastián A. |
| author_facet |
Lorenzo Figueiras, Alicia Nieves Minoli, Sebastián A. |
| author_sort |
Lorenzo Figueiras, Alicia Nieves |
| title |
Experience-dependent modulation of the attraction to faeces in the kissing bug Triatoma infestans |
| title_short |
Experience-dependent modulation of the attraction to faeces in the kissing bug Triatoma infestans |
| title_full |
Experience-dependent modulation of the attraction to faeces in the kissing bug Triatoma infestans |
| title_fullStr |
Experience-dependent modulation of the attraction to faeces in the kissing bug Triatoma infestans |
| title_full_unstemmed |
Experience-dependent modulation of the attraction to faeces in the kissing bug Triatoma infestans |
| title_sort |
experience-dependent modulation of the attraction to faeces in the kissing bug triatoma infestans |
| publishDate |
2017 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221910_v98_n_p23_Mengoni http://hdl.handle.net/20.500.12110/paper_00221910_v98_n_p23_Mengoni |
| work_keys_str_mv |
AT lorenzofigueirasalicianieves experiencedependentmodulationoftheattractiontofaecesinthekissingbugtriatomainfestans AT minolisebastiana experiencedependentmodulationoftheattractiontofaecesinthekissingbugtriatomainfestans |
| _version_ |
1768543499780620288 |