Laboratory and field studies for the control of Chagas disease vectors using the fungusMetarhizium anisopliae

Autor(es)

Rangel, Drauzio E. N. ^{[1, 2]} ; Piedrabuena, Aquiles E. ^[1] ; Roitman, Isaac ^[3] ; Messias, Claudio L. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Dept Genet & Evolucao, Campinas, SP - Brazil

^[2] Univ Brasil, Sao Paulo, SP - Brazil

^[3] Univ Brasilia, Dept Biol Celular, Brasilia, DF - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Archives of Insect Biochemistry and Physiology; v. 105, n. 4, SI DEC 2020.
• Citações Web of Science: 0

Resumo

Chagas disease is one of the most important insect-vectored diseases in Brazil. The entomopathogenic fungusMetarhizium anisopliaewas evaluated against nymphs and adults ofPanstrongylus megistus, Triatoma infestans, andT. sordida. Pathogenicity tests at saturated humidity demonstrated high susceptibility to fungal infection. The shortest estimates of 50% lethal time (LT50) forP. megistusvaried from 4.6 (isolate E9) to 4.8 days (genetically modified strain 157p). ForT. infestans, the shortest LT(50)was 6.3 (E9) and 7.3 days (157p). ForT. sordida, the shortest LT(50)was 8.0 days (157p). The lethal concentration sufficient to kill 50% ofT. infestans(LC50) was 1.9 x 10(7)conidia/ml for strain 157p. In three chicken coops that were sprayed withM. anisopliae, nymphs especially were well controlled, with a great population reduction of 38.5% after 17 days. ThereforeM. anisopliaeperformed well, controlling Triatominae in both laboratory and field studies. (AU)

• Processo FAPESP: 10/06374-1 - Luz visível durante o crescimento induz aumento de tolerância de conídios a diferentes condições de estresse em fungos
• Beneficiário: Drauzio Eduardo Naretto Rangel
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
• Processo FAPESP: 13/50518-6 - Genes relacionados com estresse são induzidos pela luz visível durante o crescimento micelial, resultando em aumento da tolerância de conídios a condições de estresse
• Beneficiário: Drauzio Eduardo Naretto Rangel
• Modalidade de apoio: Auxílio à Pesquisa - Regular