Bourquin A W
Appl Environ Microbiol. 1977 Feb;33(2):356-62. doi: 10.1128/aem.33.2.356-362.1977.
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 to 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, phosphorthionates, and four-carbon dicarboxylic acids as degradation products formed as a result of phosphatase activity.
当提供额外的营养物质作为能量和碳源时,来自盐沼环境的许多细菌能够降解有机磷杀虫剂马拉硫磷。七种分离菌株表现出将马拉硫磷作为唯一碳源进行降解的能力(48%至90%)。气相色谱、薄层色谱和红外光谱证实,马拉硫磷是通过马拉硫磷单羧酸降解为二羧酸,然后再降解为各种硫代磷酸酯。这些技术还鉴定出脱甲基马拉硫磷、硫代磷酸酯和四碳二羧酸是磷酸酶活性产生的降解产物。