Toxicity of the blue-green alga Oscillatoria agardhii to the mosquito Aedes aegypti and the shrimp Artemia salina
Autor(es): Kiviranta J,Abdel-Hameed A
Resumo: The cyanobacterium Oscillatoria agardhii 27, which does not produce mammalian neuro- or hepatotoxins, was highly toxic to the larval stages of the yellow fever mosquito Aedes aegypti: its 24-h LC50 values against fourth-and second-instar larvae of A. aegypti were 8.7 and 6.1 ?g live cells/ml, respectively. The toxin was water-soluble and was partially purified but the chemical nature of the toxic compound(s) is still unknown. Aqueous solutions were also toxic to the newborn larvae of the brine shrimp, Artemia salina, used for the bioassay. The toxic activity of these solutions decreased markedly on heating to ?90°C for 15 min.
Palavras-Chave: Aedes aegypti; Artemia salina; Biological control; Bblue-green algae; Cyanobacteria; Oscillatoria agardhii
Imprenta: World Journal of Microbiology & Biotechnology, v. 10, n. 5, p. 517-520, 1994
Identificador do objeto digital: 10.1007/BF00367656
Descritores: Aedes aegypti - Cell
Data de publicação: 1994
