Juvenile Hormone Analogues, Methoprene and Fenoxycarb Dose-Dependently Enhance Certain Enzyme Activities in the Silkworm Bombyx Mori (L)

Devi M. Mamatha, Vijaya K. Kanji, Hari H. P. Cohly and M. Rajeswara Rao
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Devi M. Mamatha: Division of Sericulture, Department of Zoology, S. V. University, Tirupati-517 502, A. P., India
Vijaya K. Kanji: Division of Sericulture, Department of Zoology, S. V. University, Tirupati-517 502, A. P., India
Hari H. P. Cohly: Department of Biology, Jackson State University,1400 J.R. Lynch street, Jackson MS, 39217, USA
M. Rajeswara Rao: Division of Sericulture, Department of Zoology, S. V. University, Tirupati-517 502, A. P., India

IJERPH, 2008, vol. 5, issue 2, 1-5

Abstract: Use of Juvenile Hormone Analogues (JHA) in sericulture practices has been shown to boost good cocoon yield; their effect has been determined to be dose-dependent. We studied the impact of low doses of JHA compounds such as methoprene and fenoxycarb on selected key enzymatic activities of the silkworm Bombyx mori . Methoprene and fenoxycarb at doses of 1.0 ?g and 3.0fg/larvae/48 hours showed enhancement of the 5th instar B. mori larval muscle and silkgland protease, aspartate aminotransaminase (AAT) and alanine aminotransaminase (ALAT), adenosine triphosphate synthase (ATPase) and cytochrome-c-oxidase (CCO) activity levels, indicating an upsurge in the overall oxidative metabolism of the B.mori larval tissues.

Keywords: Juvenile hormone analogues; methoprene; fenoxycarb; silkworm bombyx mori (l); larva (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2008
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