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Relationships between the structure of flavonoids and antifeedant activity against Mythimna unipuncta (Haworth) (Lepidoptera: Noctuidae)
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Orientador(es)
Resumo(s)
A actividade fagoinibidora de um grupo de 30 flavonoides foi testada relativamente à Mythimna unipuncta com o fim de serem determinadas características estruturais responsáveis pela actividade ou inactividade dos flavonoides. A presença de um grupo carbonilo no C-4 dos flavonoides foi considerada importante para a actividade fagoinibidora. A hidroxilação ou a presença de açúcares nos anéis A e B parecem ser factores relevantes. Contudo, o grupo funcional no anel C não é considerado como sendo um factor significativo na actividade apresentada pelo composto.
ABSTRACT: A group of 30 flavonoids was tested for antifeedant activity against Mythimna unipuncta Haw (Lep., Noctuidae) to determine structural characteristics responsible for activity or inactivity of the flavonoids. The presence of a keto group at C4 of the flavonoid was considered to be important for the antifeedant activity. Hydroxylation as well as glycosidation of rings A and B seemed to be important. However, the functional group in the C-ring was not considered to be a significant factor in determining activity of the compound.
ABSTRACT: A group of 30 flavonoids was tested for antifeedant activity against Mythimna unipuncta Haw (Lep., Noctuidae) to determine structural characteristics responsible for activity or inactivity of the flavonoids. The presence of a keto group at C4 of the flavonoid was considered to be important for the antifeedant activity. Hydroxylation as well as glycosidation of rings A and B seemed to be important. However, the functional group in the C-ring was not considered to be a significant factor in determining activity of the compound.
Descrição
Palavras-chave
Mythimna unipuncta (Haworth) Actividade Fagoinibidora Flavonóide Antifeedant Activity
Contexto Educativo
Citação
"ARQUIPÉLAGO. Ciências Biológicas e Marinhas = Life and Marine Sciences". ISSN 0870-6581. Nº 12A (1994): 63-66.