Autor(es)Saario, E.; Abdel-Hameed, A.; Kiviranta, J.

ResumoSome aquatic habitats of immature mosquitoes (Diptera: Culicidae) have natural populations of cyanobacteria (blue-green algae) including Anabaena, Oscillatoria and Microcystis. Some strains of these bacteria produce hepatotoxic peptides, microcystins or a neurotoxic alkaloid, anatoxin-a. We have recently shown that these products, which are toxic to vertebrates and Cladocera (Crustacea), can also kill mosquito larvae. Hence the reported reductions of adult mosquito densities in areas with massive development of cyanobacteria. In the present work we studied the histopathological effects of different cyanobacteria and a pure microcystin on early fourth-instar larvae of the mosquito Aedes aegypti.

Palavras-ChaveMetabolites; Biological control; Biological poisons; Larvae; Histopathology; Insect larvae; Toxins; Pathogenicity; Midgut; Epithelium; Larvicides

ImprentaMedical and Veterinary Entomology, v. 8, n. 4, p. 398-400, 1994.

DescritoresAedes aegypti - Cell ; Aedes aegypti - Larvicide

Data de Publicação:1994