Record Display for the EPA National Library Catalog
RECORD NUMBER: 11 OF 64Main Title | Degradation of Malathion by Salt-Marsh Microorganisms. | |||||||||||
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Author | Bourquin., A. W. ; | |||||||||||
CORP Author | Environmental Research Lab., Gulf Breeze, Fla. | |||||||||||
Year Published | 1976 | |||||||||||
Report Number | EPA/600/J-77/020 ;Contrib-291; | |||||||||||
Stock Number | PB-268 571 | |||||||||||
Additional Subjects | Malathion ; Bacteria ; Biodeterioration ; Marshes ; Carboxylic acids ; Nutrients ; Carbon ; Acid phosphatases ; Microorganisms ; Insecticides ; Experiments ; Gas chromatography ; Infrared spectroscopy ; Thin layer chromatography ; Sea water ; Water pollution ; Chemical analysis ; Reprints ; Salt marshes ; Energy sources | |||||||||||
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Collation | 8p | |||||||||||
Abstract | Numerous bacteria from a salt-marsh environment are capable of degrading malathion, an organophosphate insecticide, when supplied with additional nutrients as energy and carbon sources. Seven isolates exhibited ability (48-90%) to degrade malathion as a sole carbon source. Gas and thin-layer chromatography and infrared spectroscopy confirmed malathion to be degraded via malathion-monocarboxylic acid to the dicarboxylic acid and then to various phosphothionates. These techniques also identified desmethyl-malathion, phosphorothionates, and four-carbon dicarboxylic acids as degradation products formed as a result of phosphatase activity. |