Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
2008-3-3
pubmed:abstractText
Hexavalent chromium [Cr(VI)] is a major industrial pollutant. Bioremediation of Cr(VI) to Cr(III) is a viable clean-up approach. However, Cr(VI) bioreduction also produces soluble organo-Cr(III) complexes, and little is known about their behavior in the environment. When tested with soil columns, citrate-Cr(III) showed little sorption to soil; malate-Cr(III) had limited partitioning with soil; and histidine-Cr(III) exhibited significant interaction with soil. It appears that the mobility varies depending on the organic ligand. Further, Ralstonia eutropha JMP 134 and Pseudomonas aeruginosa pAO1 readily degraded malate, citrate, and histidine, but not the corresponding organo-Cr(III) complexes. The recalcitrance is not due to toxicity, but the complexes are likely to cause hindrance to enzymes, as malate dehydrogenase and amino acid oxidase could not use malate-Cr(III) and histidine-Cr(III), respectively. The data are in agreement with the reports of soluble organo-Cr(III) complexes in the environment.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0045-6535
pubmed:author
pubmed:issnType
Print
pubmed:volume
70
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2054-9
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Mobility and recalcitrance of organo-chromium(III) complexes.
pubmed:affiliation
School of Molecular Biosciences, Washington State University, Pullman, WA 99164, United States.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S.