Linked Life Data

6578734

Source:http://linkedlifedata.com/resource/pubmed/id/6578734

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1983-11-23
pubmed:abstractText
It has been reported that certain microorganisms isolated from lake sediments may transform inorganic lead compounds to organic derivatives, which are by at least one order of magnitude more toxic than the parent (inorganic) compounds. The purpose of this study was to investigate whether microorganisms isolated from a marine sediment could also produce such metabolites in an in vitro system simulating the marine ecosystem. The experimental setup included: 1) A sterile control system containing added inorganic lead (referred to as Pb2+); 2) a nonsterile control system without added Pb2+; 3) a nonsterile experimental system containing added Pb2+. The amount of added Pb2+ ranged from 5 to 1,000 ppm. Aliquots were taken at different intervals from the nonsterile systems and the surviving microorganisms were identified and counted. The main results were as follows: 1) The higher lead levels were toxic to all microorganisms. 2) Organic lead was only detected in the nonsterile experimental system, apparently due to microbial action, since none was found in the sterile systems. 3) Several bacteria exhibiting various degrees of tolerance for lead were isolated.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0171-9750
pubmed:author
pubmed:issnType
Print
pubmed:volume
6
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
285-91
pubmed:dateRevised
2000-12-18
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
Conversion of inorganic lead into a highly-toxic organic derivative by marine microorganisms.
pubmed:publicationType
Journal Article