Flavonoids with mosquito larval toxicity

Culture broths of an unidentified species of Streptomyces showed toxicity to mosquito larvae. The toxic action was due to three crystalline compounds, identified as tangeretin, genistein, and daidzein. Activity was produced only when soybean meal was included in the culture medium; genistein and dai...

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Bibliographic Details
Published in:Journal of agricultural and food chemistry 1990-06, Vol.38 (6), p.1427-1430
Main Authors: Rao, Koppaka V, Chattopadhyay, Sunil K, Reddy, G. Chandrasekhara
Format: Article
Language:English
Subjects:
AEDES AEGYPTI
Biological and medical sciences
FLAVONOIDE
FLAVONOIDES
FLAVONOIDS
Fundamental and applied biological sciences. Psychology
INSECTICIDAL PROPERTIES
INSECTICIDAS
INSECTICIDE
INSECTICIDES
Invertebrates
LARVAE
LARVAS
LARVE
Medically important nuisances and vectors, pests of stored products and materials: population survey and control
MICROBIAL PESTICIDES
PESTICIDE MICROBIEN
PLAGUICIDAS MICROBIANOS
STREPTOMYCES
Tropical medicine
Vectors. Intermediate hosts
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Summary:Culture broths of an unidentified species of Streptomyces showed toxicity to mosquito larvae. The toxic action was due to three crystalline compounds, identified as tangeretin, genistein, and daidzein. Activity was produced only when soybean meal was included in the culture medium; genistein and daidzein appear to arise as a result of the hydrolysis of the corresponding glycosides known to be present in soybean. The acetates of these two compounds also showed activity.
ISSN:0021-8561
1520-5118
DOI:10.1021/jf00096a028