Artículo
Abstract:
The behaviour of Triatoma infestans (Hemiptera: Reduviidae) in response to thermal stimulation was studied. We analysed the effect of a heat source on the locomotion activity, and antennal movements of tethered insects. Antennal movements were studied both in the horizontal and vertical planes, and related to whether locomotion was being displayed or not. In addition, we analysed the trajectories of intact and unilaterally antennectomised insects towards a warm cylinder in a closed-loop design. In the presence of a thermal source, triatomine bugs performed more antennal movements and walked faster than in its absence. Insects displayed a sequence of walking bouts and standing phases of variable length, concomitant with active antennal movements in both the horizontal and vertical planes. While walking, the antennae moved smoothly in co-ordination. When the insects stopped, the movements changed dramatically, displaying abrupt changes of direction. The trajectories of control animals were straight towards the thermal source. Unilateral antennectomy resulted in deviated trajectories towards the goal, with the deviation always occurring towards the side of the intact antenna. The trajectories were fairly straight up to the moment of the extension of the proboscis, at a fixed distance of around 15 mm between the tip of the head and the warm surface, when a sharp body turn occurred. Control animals probed the source at a position perpendicular to the warm surface. Antennectomised animals missed the goal and probed the air at a position tangential to the surface of the warm body. The function of the antennae during the approach to a potential source of food, and the mechanisms of orientation possibly involved, are discussed. Copyright © 1996 Elsevier Science Ltd.
Registro:
| Documento: | Artículo |
| Título: | The role of the antennae in Triatoma infestans: Orientation towards thermal sources |
| Autor: | Flores, G.B.; Lazzari, C.R. |
| Filiación: | Departamento de Biología, Fac. de Ciencias Exactas y Naturales, Universidad de Buenos Aires, (1428) Buenos Aires, Argentina |
| Palabras clave: | Antennae; Chagas disease; Thermal orientation; Triatominae |
| Año: | 1996 |
| Volumen: | 42 |
| Número: | 5 |
| Página de inicio: | 433 |
| Página de fin: | 440 |
| DOI: | http://dx.doi.org/10.1016/0022-1910(95)00137-9 |
| 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_v42_n5_p433_Flores |
Referencias:
- Dusenbery, D.B., (1992) Sensory Ecology, 558p. , Freeman and Co, U.S.A
- Flores, G.B., Lazzari, C.R., Bilateral integration of antennal inputs during thermal orientation in Triatoma infestans (1993) Mem. Inst. Oswaldo Cruz, 88, p. 250
- Lazzari, C.R., (1983) Estudio de Los Receptores Sensoriales de Las Antenas de Triatoma Infestans (Klug, 1834) (Heteroptera: Reduviidae)., 81p. , Diploma Thesis. Universidad de Buenos Aires
- Lazzari, C.R., Fisiologia del comportamiento de Triatoma infestans (Klug, 1834) (Heteroptera: Reduviidae) (1990) Orientation Termica, 161p. , Doctoral Thesis. Universidad de Buenos Aires
- Lazzari, C.R., Temperature preference in Triatoma infestans (Hemiptera: Reduviidae) (1991) Bull, Entomol. Res., 81, pp. 273-276
- Lazzari, C.R., Circadian organization of locomotion activity in the haematophagous bug Triatoma infestans (1992) J. Insect Physiol., 38, pp. 895-903
- Lazzari, C.R., Núñez, J.A., The response to radiant heat and the estimation of the temperature of distance sources in Triatoma infestans (1989) J. Insect Physiol., 35, pp. 525-529
- Lazzari, C.R., Núñez, J.A., Thermoperception in haematophagous bugs (1991) Third IBRO World Congress in Neuroscience, , Montreal, Canada
- Lazzari, C.R., Wicklein, M., The cave-like sense organ in the antennae of triatomine bugs (1994) Mem. Inst. Oswaldo Cruz, 89, pp. 643-648
- Loftus, R., Peripheral thermal receptors (1978) Sensory Ecology, pp. 439-466. , (Ed. Ali M. A.) Plenum Press
- Núñez, J.A., Behavior of Triatominae bugs (1987) Chagas' Disease Vectors, 2, pp. 1-29. , (Eds Brenner R. R. and Stoka A. M.) CRC Press, Fl
- Núñez, J.A., Lazzari, C.R., Rearing of Triatoma infestans Klug (Het, Reduviidae) in the absence of a live host. I. Some factors affecting the artificial feeding (1990) J. Applied Entomol., 109, pp. 87-92
- Taneja, J., Guerin, P.M., Oriented responses of the triatomine bugs Rhodnius prolixus and Triatoma infestans to vertebrate odours on a servosphere (1995) J. Comp. Physiol. A, 176, pp. 455-464
- Wehner, R., Neurobiology of polarization vision (1989) Trends Neurosci., 12, pp. 353-359
- (1991) Control of Chagas Disease, 95p. , WHO Technical Report Series 811, Geneva
- Wigglesworth, V.B., Gillett, J.D., The function of the antennae in Rhodnius prolixus (Hemiptera) and the mechanism of orientation to the host (1934) J. Exp. Biol., 11, pp. 120-139
Citas:
---------- APA ----------
Flores, G.B. & Lazzari, C.R. (1996) . The role of the antennae in Triatoma infestans: Orientation towards thermal sources. Journal of Insect Physiology, 42(5), 433-440.http://dx.doi.org/10.1016/0022-1910(95)00137-9
---------- CHICAGO ----------
Flores, G.B., Lazzari, C.R. "The role of the antennae in Triatoma infestans: Orientation towards thermal sources" . Journal of Insect Physiology 42, no. 5 (1996) : 433-440.http://dx.doi.org/10.1016/0022-1910(95)00137-9
---------- MLA ----------
Flores, G.B., Lazzari, C.R. "The role of the antennae in Triatoma infestans: Orientation towards thermal sources" . Journal of Insect Physiology, vol. 42, no. 5, 1996, pp. 433-440.http://dx.doi.org/10.1016/0022-1910(95)00137-9
---------- VANCOUVER ----------
Flores, G.B., Lazzari, C.R. The role of the antennae in Triatoma infestans: Orientation towards thermal sources. J. Insect Physiol. 1996;42(5):433-440.http://dx.doi.org/10.1016/0022-1910(95)00137-9
