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Degradation of organophosphates by fish liver phosphatases

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James W. Hogan, and Charles O. Knowles, 1968, Degradation of organophosphates by fish liver phosphatases: Journal of the Fisheries Research Board of Canada, v. 25, iss. 8.

Summary

Liver homogenates of bluegill, Lepomis macrochirus Rafinesque, and channel catfish, Ictalurus punctatus (Walbaum), were shown by a manometric technique to contain soluble enzymes capable of degrading diisopropyl phosphorofluoridate (DFP) and 2,2-dichlorovinyl dimethyl phosphate (dichlorvos). Hydrolysis of the compounds was greatest in the presence of the manganic ion. Tentative identification of certain of the hydrolysis products suggested that cleavage of the anhydride bond was a degradation pathway for DFP and dichlorvos in vitro under the assay conditions employed. Substrate summation, inhibition, and activation experiments failed to clearly indicate more than a single enzyme hydrolyzing DFP and dichlorvos in the two fish.

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Harvested on Tue May 31 04:16:38 MDT 2016 from MODS XML Service

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Type Scheme Key
local-index unknown 70171225
local-pk unknown 70171225
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1139/f68-142
series unknown Journal of the Fisheries Research Board of Canada

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journalJournal of the Fisheries Research Board of Canada
parts
typevolume
value25
typeissue
value8
languageEnglish
citationTypeArticle

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