Toxicity of Dimorphandra mollis to Workers of Apis mellifera
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Data
2002-02-01
Autores
Cintra, Priscila [UNESP]
Malaspina, Osmar [UNESP]
Petacci, Fernando
Fernandes, João B.
Bueno, Odair C. [UNESP]
Vieira, Paulo C.
Silva, M. Fátima das G. F. da
Título da Revista
ISSN da Revista
Título de Volume
Editor
Sociedade Brasileira de Química
Resumo
Nesta comunicação estamos reportando as propriedades tóxicas dos extratos metanólicos das flores, pedúnculos, folhas, pecíolo e casca do tronco de Dimorphandra mollis sobre as operárias de Apis mellifera. Astilbina (3-beta-O-rhamnosideo de 5,7,3',4'-- tetraidroxi-2,3-diidroflavonol) isolada dos pedúnculos e flores como o seu principal componente, apresentou atividade inseticida sobre abelhas confinadas. Os resultados obtidos indicam que a astilbina reduz a sobrevivência média das abelhas tratadas.
In this communication we have evaluated the toxic properties of methanol extracts from flowers, peduncles, leaves, petioles and stem bark of Dimorphandra mollis to Apis mellifera workers. Astilbin (5,7,3',4'-tetrahydroxy--2,3-dihydroflavonol-3-beta-O-rhamnoside) has been isolated from peduncles and flowers of this plant in large amounts. Astilbin presented insecticidal activity against confined bees. The results suggest that astilbin reduces the average survival of treated bees.
In this communication we have evaluated the toxic properties of methanol extracts from flowers, peduncles, leaves, petioles and stem bark of Dimorphandra mollis to Apis mellifera workers. Astilbin (5,7,3',4'-tetrahydroxy--2,3-dihydroflavonol-3-beta-O-rhamnoside) has been isolated from peduncles and flowers of this plant in large amounts. Astilbin presented insecticidal activity against confined bees. The results suggest that astilbin reduces the average survival of treated bees.
Descrição
Palavras-chave
flavonoids, natural insecticides, Dimorphandra mollis, Apis mellifera
Como citar
Journal of the Brazilian Chemical Society. Sociedade Brasileira de Química, v. 13, n. 1, p. 115-118, 2002.