Hydrolysis of organophosphorus compounds by an esterase isozyme from insecticide resistant pest Helicoverpa armigera.

Srinivas, R; Jayalakshmi, S K; Sreeramulu, K

Srinivas, R; Jayalakshmi, S K; Sreeramulu, K.

Indian J Exp Biol ; 2004 Feb; 42(2): 214-6

Article in English | IMSEAR | ID: sea-56585

ABSTRACT

ABSTRACT

Esterase activity of resistant and susceptible H. armigera were compared in gels with different substrate such as naphthyl acetate, naphthyl phosphate, paraoxon and monocrotophos. Whole body extract of resistant H. armigera hydrolyzed paraoxon, monocrotophos and naphthyl phosphate in gels. Resistant H. armigera showed high esterase, phosphatase and paraoxon hydrolase activity compared to susceptible ones.

Subject(s)

Animals; Esterases/metabolism; Hydrolysis; Insecticide Resistance; Insecticides/metabolism; Larva/drug effects; Lepidoptera/metabolism; Monocrotophos/metabolism; Naphthalenes/metabolism; Naphthols/metabolism; Organophosphorus Compounds/metabolism; Paraoxon/metabolism; Phosphoric Monoester Hydrolases/metabolism

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Full text: Available Index: IMSEAR (South-East Asia) Main subject: Organophosphorus Compounds / Paraoxon / Insecticide Resistance / Phosphoric Monoester Hydrolases / Esterases / Hydrolysis / Insecticides / Larva / Lepidoptera / Animals Language: English Journal: Indian J Exp Biol Year: 2004 Type: Article

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