Abstract:
:A bacterium strain, which is capable of degrading monocrotophos, was isolated from sludge collected from the bottom of a wastewater treatment system of a chemical factory, and named M-1. On the basis of the results of the cellular morphology, physiological and chemotaxonomic characteristics and phylogenetic similarity of 16S rDNA gene sequences, the strain was identified as a Paracoccus sp. The ability of the strain to mineralize monocrotophos was investigated under different culture conditions. Other organophosphorus insecticides and amide herbicides were also degraded by M-1. The key enzyme (s) involved in the initial biodegradation of monocrotophos in M-1 was shown to be a constitutively expressed cytosolic protein. The addition of M-1 (10(6) CFU g(-1)) to fluvo-aquic soil and a high-sand soil containing monocrotophos (50 mg kg(-1)) resulted in a higher degradation rate than that obtained from noninoculated soil. This microbial culture has great potential utility for the bioremediation of wastewater or soil contaminated with organophosphorus pesticides and amide herbicides.
journal_name
FEMS Microbiol Lettjournal_title
FEMS microbiology lettersauthors
Jia KZ,Cui ZL,He J,Guo P,Li SPdoi
10.1111/j.1574-6968.2006.00389.xsubject
Has Abstractpub_date
2006-10-01 00:00:00pages
155-62issue
2eissn
0378-1097issn
1574-6968pii
FML389journal_volume
263pub_type
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