Linked Life Data

11537560

Source:http://linkedlifedata.com/resource/pubmed/id/11537560

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1995-5-10
pubmed:abstractText
Adaptation of bacterial activity for the degradation of nitrilotriacetate (NTA) was studied using natural sediment samples and an NTA-degrading bacterium (strain ATCC 29600). Sediment samples from a river with persistent levels of NTA had much higher NTA-degradative activity than comparable samples from a less contaminated control site. When sediment from the control site was exposed to high levels of NTA a 5 day lag preceded an abrupt increase in NTA degradation while strain 29600 colonized on sand and grown in the absence of NTA became induced within eight hours. The induction of strain 29600 was compared between bacteria in suspension and cells attached to sand. The sand-associated bacteria became induced 4 to 5 h before the planktonic suspension and displayed over threefold greater specific activity. Suspensions of strain 29600 became adapted within 8 h when placed in membrane diffusion chambers that were immersed within a municipal wastewater reactor containing NTA. These findings support the concept that induction is a part of the process of bacterial adaptation to degrade NTA and sand-associated bacteria can adapt more quickly to and have a greater degradative activity for NTA than planktonic cells.
pubmed:keyword
pubmed:language
eng
pubmed:citationSubset
S
pubmed:chemical
pubmed:status
MEDLINE
pubmed:author
pubmed:owner
NASA
pubmed:authorsComplete
Y
pubmed:pagination
875-81
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:articleTitle
Activity and adaptation of nitrilotriacetate (NTA)-degrading bacteria: field and laboratory studies.
pubmed:affiliation
Department of Microbiology, Montana State University, Bozeman 59717.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't