Linked Life Data

17611794

Source:http://linkedlifedata.com/resource/pubmed/id/17611794

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2007-8-27
pubmed:abstractText
Using TAM III multi-channel thermocalorimetry combined with direct microorganism counting (bacteria, actinomycetes and fungi) under laboratory conditions, we determined the microbial population count, resistance and activity toward cadmium (Cd) toxicity in soil. The thermokinetic parameters, which can represent soil microbial activity, were calculated from power-time curves of soil microbial activity obtained by microcalorimetric measurement. Simultaneous application of the two methods showed that growth rate constant (k), peak-heat output power (P (max)) and the number of living microorganisms decreased with increasing concentration of Cd. Anncrease in Cd concentration resulted in the decrease of the peak-heat output power and increase in the time of the peak of power. However, the relationships between the thermokinetic parameters (k and P (max)) and the number of microorganism were not linear, but the trend was similar. Our research also suggests that microcalorimetry is a very sensitive, simple and useful technique for in vitro investigation of the effects of toxic heavy metals on soil microbial activity.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0963-9292
pubmed:author
pubmed:issnType
Print
pubmed:volume
16
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
503-9
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
An in vitro microcalorimetric method for studying the toxic effect of cadmium on microbial activity of an agricultural soil.
pubmed:affiliation
School of Environmental Studies & MOE Biogeology and Environmental Geology Laboratory, China University of Geosciences, Wuhan 430074, P.R. China. junyao@cug.edu.cn
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't