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Abstract:

Insects sense thermal cues mainly through thermoreceptors located in the antenna. To analyse the impact of antennectomy on the thermal behaviour of the haematophagous bug Triatoma infestans, we studied the distribution of intact and antennectomised bugs in an experimental arena where a temperature gradient was established, as well as the biting response of insects with and without antennae to objects at the temperature of a potential host. Antennectomy did not abolish thermopreference, but modified the temperature at which the insects preferred to stay. In the arena, antennectomised insects chose to remain at a higher temperature ( ca. 3. °C higher in unfed bugs), and exhibited a larger dispersion around that preferred temperature, than intact bugs. In addition, ablated insects temporarily lost their ability to bite an object at the temperature of a potential host, but that ability was gradually recovered after the fifth day post-antennectomy. Results presented here show that thermoreceptors other than those located on the antennae can also guide thermal behaviours. We conclude that the function of antennal thermoreceptors can be taken over by other receptors located in different regions of the body. Those receptors have a different sensitivity and confer the insects with a different responsiveness. © 2013 Elsevier Ltd.

Registro:

Documento: Artículo
Título:The role of antennae in the thermopreference and biting response of haematophagous bugs
Autor:Lorenzo Figueiras, A.N.; Flores, G.B.; Lazzari, C.R.
Filiación:Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina
Institut de Recherche sur la Biologie de l'Insecte, UMR CNRS 7261, Université François Rabelais, Tours, France
Palabras clave:Biting behaviour; Chagas disease; Spatial distribution; Thermoreceptors; Triatoma infestans; antenna; behavioral response; Chagas disease; environmental cue; insect; preference behavior; sensory system; spatial distribution; temperature effect; temperature gradient; animal; antenna (organ); article; Biting behaviour; Chagas disease; feeding behavior; larva; physiology; spatial distribution; temperature; thermoreceptor; Triatoma; Triatomainfestans; Biting behaviour; Chagas disease; Spatial distribution; Thermoreceptors; Triatomainfestans; Animals; Arthropod Antennae; Feeding Behavior; Larva; Temperature; Triatoma
Año:2013
Volumen:59
Número:12
Página de inicio:1194
Página de fin:1198
DOI: http://dx.doi.org/10.1016/j.jinsphys.2013.09.002
Título revista:Journal of Insect Physiology
Título revista abreviado:J. Insect Physiol.
ISSN:00221910
CODEN:JIPHA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221910_v59_n12_p1194_LorenzoFigueiras

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Citas:

---------- APA ----------
Lorenzo Figueiras, A.N., Flores, G.B. & Lazzari, C.R. (2013) . The role of antennae in the thermopreference and biting response of haematophagous bugs. Journal of Insect Physiology, 59(12), 1194-1198.
http://dx.doi.org/10.1016/j.jinsphys.2013.09.002
---------- CHICAGO ----------
Lorenzo Figueiras, A.N., Flores, G.B., Lazzari, C.R. "The role of antennae in the thermopreference and biting response of haematophagous bugs" . Journal of Insect Physiology 59, no. 12 (2013) : 1194-1198.
http://dx.doi.org/10.1016/j.jinsphys.2013.09.002
---------- MLA ----------
Lorenzo Figueiras, A.N., Flores, G.B., Lazzari, C.R. "The role of antennae in the thermopreference and biting response of haematophagous bugs" . Journal of Insect Physiology, vol. 59, no. 12, 2013, pp. 1194-1198.
http://dx.doi.org/10.1016/j.jinsphys.2013.09.002
---------- VANCOUVER ----------
Lorenzo Figueiras, A.N., Flores, G.B., Lazzari, C.R. The role of antennae in the thermopreference and biting response of haematophagous bugs. J. Insect Physiol. 2013;59(12):1194-1198.
http://dx.doi.org/10.1016/j.jinsphys.2013.09.002