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Abstract:

Simple eyes or ocelli coexist with compound eyes in many adult insects. The change in the morphology of the ocelli along the five larval instars of Triatoma infestans was studied by light and scanning electron microscopy. Our analysis showed that the development of the ocelli of these bugs occurs gradually along the larval life. The photoreceptor layer is present from the second-instar onwards. The cornea appears first at the imaginal stage and grows up to the 18-20th day after the last ecdysis, associated to an increase in the retinal mass. Findings are discussed in a comparative fashion and in relation to the functionality of the ocellar system in T. infestans.

Registro:

Documento: Artículo
Título:The Postembryonic Development of the Ocellar System of Triatoma infestans Klug (Heteroptera: Reduviidae)
Autor:Insausti, T.C.; Lazzari, C.R.
Filiación:Departamento de Bioiogía, Fac. de Ciencias Exactas y Naturales, Universidad de Buenos Aires, (1428) Buenos Aires, Argentina
Palabras clave:Chagas disease; Development; Ocelli; Triatoma infestans; Heteroptera; Hexapoda; Reduviidae; Triatoma infestans; animal; article; disease carrier; electron microscopy; eye; growth, development and aging; Triatoma; ultrastructure; Animals; Eye; Insect Vectors; Microscopy, Electron; Triatoma
Año:2000
Volumen:95
Número:6
Página de inicio:877
Página de fin:881
DOI: http://dx.doi.org/10.1590/S0074-02762000000600024
Título revista:Memorias do Instituto Oswaldo Cruz
Título revista abreviado:Mem. Inst. Oswaldo Cruz
ISSN:00740276
PDF:https://bibliotecadigital.exactas.uba.ar/download/paper/paper_00740276_v95_n6_p877_Insausti.pdf
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00740276_v95_n6_p877_Insausti

Referencias:

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  • Corchs, M.J., Insausti, T.C., Lorenzo, M.G., Diotaiuti, L., Lazzari, C.R., A possible age indicator for adult triatomines (1999) Resumos XVI Congresso Brasileiro de Parasitologia, 83
  • Goodman, L.J., Organisation and physiology of the insect dorsal ocellar system (1981) Handbook of Sensory Physiology, 7 (6 C), pp. 201-286. , H Autrum, Springer-Verlag, Berlin, Heidelberg & New York
  • Insausti, T.C., (1997) Estudio del Sistema Ocelar de la Vinchuca Triatoma Infestans (Klug, 1834) (Heteroptera: Reduviidae), , PhD Thesis, University of Buenos Aires, Argentina, 257 pp
  • Insausti, T.C., Lazzari, C.R., An ocellar "pupil" that does not change with light intensity, but with the insect age in Triatoma infestans (2000) Mem Inst Oswaldo Cruz, 95. , in press
  • Insausti, T.C., Lazzari, C.R., Campanucci, V.A., Neurobiology of behaviour. A: Morphology of the nervous system and sense organs (1999) Atlas of Chagas Disease Vectors in the Americas, 3-23 A, pp. 1017-1051. , RU Carcavallo, I Galindez Girón, J Jurberg, H Lent (eds), Editora Fiocruz, Rio de Janeiro
  • Lazzari, C.R., Reisenman, C.E., Insausti, T.C., The role of the ocelli in the phototactic response of Triatoma infestans (Heteroptera: Reduviidae) (1998) J Insect Physiol, 44, pp. 1159-1162
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  • Nüñez, 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
  • Redikorzew, W., Untersuchungen über den Bau der Ocellen der Insekten (1900) Z Wiss Zool, 68, pp. 581-625

Citas:

---------- APA ----------
Insausti, T.C. & Lazzari, C.R. (2000) . The Postembryonic Development of the Ocellar System of Triatoma infestans Klug (Heteroptera: Reduviidae). Memorias do Instituto Oswaldo Cruz, 95(6), 877-881.
http://dx.doi.org/10.1590/S0074-02762000000600024
---------- CHICAGO ----------
Insausti, T.C., Lazzari, C.R. "The Postembryonic Development of the Ocellar System of Triatoma infestans Klug (Heteroptera: Reduviidae)" . Memorias do Instituto Oswaldo Cruz 95, no. 6 (2000) : 877-881.
http://dx.doi.org/10.1590/S0074-02762000000600024
---------- MLA ----------
Insausti, T.C., Lazzari, C.R. "The Postembryonic Development of the Ocellar System of Triatoma infestans Klug (Heteroptera: Reduviidae)" . Memorias do Instituto Oswaldo Cruz, vol. 95, no. 6, 2000, pp. 877-881.
http://dx.doi.org/10.1590/S0074-02762000000600024
---------- VANCOUVER ----------
Insausti, T.C., Lazzari, C.R. The Postembryonic Development of the Ocellar System of Triatoma infestans Klug (Heteroptera: Reduviidae). Mem. Inst. Oswaldo Cruz. 2000;95(6):877-881.
http://dx.doi.org/10.1590/S0074-02762000000600024