title: Isolation of a triazophos-degrading strain Klebsiella sp. E6 effectively utilizing triazophos as sole nitrogen source.
abstract: A triazophos-degrading strain, Klebsiella sp. E6, was isolated by enrichment technology from soil that had been exposed long-term to triazophos. The strain grew well at pH 7.0-8.0 with a broad temperature profile ranging from 32 to 37 degrees C. It could keep good growth on methanol as carbon source and TAP as additional carbon source or nitrogen source. The experiment on the degradation activities of strain E6 showed that it utilized TAP more effectively when TAP was supplied as the sole nitrogen source, as opposed to additional carbon source. The intermediates of triazophos metabolism indicated that degradation occurred through a hydrolysis mechanism, one of the products of which, 1-phenyl-3-hydroxy-1,2,4-triazole, was also mineralized by strain E6.
authors.affiliation: College of Materials Science and Chemical Engineering, Zhejiang University, Hangzhou 310027, PR China.
authors.forename: Lihong
authors.initials: L
authors.lastname: Wang
authors.forename: Lin
authors.initials: L
authors.lastname: Zhang
authors.forename: Huanlin
authors.initials: H
authors.lastname: Chen
authors.forename: Qingguo
authors.initials: Q
authors.lastname: Tian
authors.forename: Guonian
authors.initials: G
authors.lastname: Zhu
mesh_terms: D001673:Biodegradation, Environmental; D007709:Klebsiella / Q000254:growth & development* / Q000302:isolation & purification*; D013058:Mass Spectrometry; D009584:Nitrogen / Q000502:physiology*; D063086:Organothiophosphates / Q000378:metabolism*; D010575:Pesticides / Q000378:metabolism*; D014230:Triazoles / Q000378:metabolism*; D018505:Waste Management / Q000379:methods
chemical_list: D063086:Organothiophosphates; D010575:Pesticides; D014230:Triazoles; C012584:triazophos; D009584:Nitrogen