Plumbagin and azadirachtin deplete hemolymph ecdysteroid levels and alter the activity profiles of two lysosomal enzymes in the fat body of Helicoverpa armigera (Lepidoptera: Noctuidae)

Title:

Plumbagin and azadirachtin deplete hemolymph ecdysteroid levels and alter the activity profiles of two lysosomal enzymes in the fat body of Helicoverpa armigera (Lepidoptera: Noctuidae)

Creator:

Josephrajkumar, Arulappan, Subrahmanyam, Bhattiprolu, and Srinivasan, S.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:1c08b471-6a9e-4ba9-8603-e0e709b7086b
uuid:1c08b471-6a9e-4ba9-8603-e0e709b7086b

Subject:

zoologie, entomologie, hmyz, fyziologie hmyzu, motýli, Noctuidae, Helicoverpa armigera, metamorfóza, růstové regulátory, plumbagin, azadirachtin, účinky, ekdysteroid, kyselá fosfatáza, beta-galaktosidáza, morfologické abnormality, 591.1, and 595.2/.7

Type:

article, bibliography, model:article, and TEXT

Format:

print, text, and regular print

Description:

The profile of hemolymph ecdysteroid was studied in the gram pod borer, Helicoverpa armigera, during larval-pupal transformation. The changes closely correspond to the developmental events occurring at metamorphosis. Two insect growth regulators, plumbagin and azadirachtin, significantly depleted the content and altered the profile of ecdysteroids at crucial stages, when applied at ED50 doses. The activity profiles of two fat body lysosomal enzymes, acid phosphatase and b-galactosidase, were also significantly affected by the insect growth regulators. It is suggested that plumbagin and azadirachtin treatments primarily modify the ecdysteroid titer, which in turn leads to changes in lysosomal enzyme activity causing overt morphological abnormalities during the metamorphic molt., Arulappan Josephrajkumar, Bhattiprolu Subrahmanyam, Srinivasan, and Lit

Language:

English

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Source:

European Journal of Entomology | 1999 Volume:96 | Number:4

Harvested from:

CDK

Metadata only:

false