Linked Life Data

16347880

Source:http://linkedlifedata.com/resource/pubmed/id/16347880

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2010-6-25
pubmed:abstractText
A stable bacterial community absorbed and transformed the herbicide metolachlor [2-chloro-N-(2-ethyl- 6-methylphenyl)-N-(2-methoxy-1-methylethyl)-acetamide] from a liquid medium. About 80% of the added ring-[U-C]metolachlor (50 mug/ml) disappeared from the medium and accumulated inside the cells. The ratio of cellular C to C in 1 mg of supernatant reached a value of 1.1 x 10 in a 10-day-old culture. C remaining in the medium consisted primarily of two dechlorinated products of metolachlor with m/z 233 and 263 as determined by mass spectrometry. The C-labeled material absorbed by the cells was strongly bound; only 2% of the C was released into deionized water after shaking for 3 h. Approximately 96% of the C associated with the biomass was extracted with acetone, and high-performance liquid chromatographic analysis of this fraction showed six peaks containing radioactivity. Since no metolachlor was detected by chromatographic analysis, it was concluded that the radioactivity recovered from the cells represented transformed products of metolachlor. Pure cultures isolated from the bacterial mixed culture were less effective in transforming and accumulating metolachlor. These results suggest that it may be advantageous to seed an aquatic environment with a mixture of microorganisms, rather than individual microbial species, as a method for removal or detoxification of metolachlor.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Mar
pubmed:issn
0099-2240
pubmed:author
pubmed:issnType
Print
pubmed:volume
55
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
733-40
pubmed:dateRevised
2010-9-20
pubmed:year
1989
pubmed:articleTitle
Sorption and metabolism of metolachlor by a bacterial community.
pubmed:affiliation
Laboratory of Soil Biochemistry, Department of Agronomy, The Pennsylvania State University, University Park, Pennsylvania 16802.
pubmed:publicationType
Journal Article