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Type: Artigo de periódico
Title: Experimentally Induced Heat-shock Tolerance In Panstrongylus Megistus (hemiptera: Reduviidae)
Author: Garcia S.L.
Mello M.L.S.
Garcia N.L.
Rodrigues V.L.C.C.
Abstract: The survival and molting incidence of fifth-instar nymphs of Panstrongylus megistus (Burmeister, 1835), a vector of Chagas' disease, were investigated following sequential heat shocks in which a mild shock (35 or 40°C, 1 h) preceded a more drastic one (40°C, 12 h). The shocks were separated by 8-, 18-24-, or 72-h periods at 28°C. The heat-shock tolerance response was more effective when the first shock was given at 40°C. When the period between shocks was 18 h, the tolerance to sequential shocks (in terms of specimen survival) weakened, which suggested a transient control of the process that enables the organism to circumvent the unfavorable effects of severe shock. In terms of molting incidence, the heat-shock tolerance was only demonstrated when the period between the first shock at 40°C for 1 h and the second shock at 40°C for 12 h was ≥24 h. These results are the first to demonstrate the induction of heat-shock tolerance in a blood-sucking hemipteran.
Rights: fechado
Identifier DOI: 
Date Issue: 2001
Appears in Collections:Unicamp - Artigos e Outros Documentos

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