Metabolism of Parathion by Two Species of Rhizobium1 | Zendy

David Lee Mick | Zendy; Paul A. Dahm | Zendy

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Metabolism of Parathion by Two Species of Rhizobium1

Author(s) -

David Lee Mick,

Paul A. Dahm

Publication year - 1970

Publication title -

journal of economic entomology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.818

H-Index - 101

eISSN - 1938-291X

pISSN - 0022-0493

DOI - 10.1093/jee/63.4.1155

Subject(s) - parathion , paraoxon , biology , metabolism , hydrolysis , biochemistry , glutathione , parathion methyl , toxicology , pesticide , enzyme , acetylcholinesterase , agronomy

Parathion incubated with cultures of Rhizobium japonicum and R. meliloti was metabolized primarily by nitro-reduction; 85% of the initial parathion was reduced to amino parathion. About 10% of the parathion was hydrolyzed to O,O -diethyl phosphorothioic acid (DEPT A) Both amino parathion and DEPT A have negligible toxicity compared with parathion. Reduced glutathione enhanced the production of DEPTA, whereas NADPH2 was without effect. No paraoxon was detected. Rhizobial populations decreased under the influence of parathion.

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