Linked Life Data

20505226

Source:http://linkedlifedata.com/resource/pubmed/id/20505226

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2010-5-27
pubmed:abstractText
A novel experimental technique was used to quantify the motion of E. coli to varying serine concentrations and gradients so as to capture the spatial and temporal variation of the chemotactic response. The average run speed and the cell diffusivity are found to be dependent on the serine concentration. The measured diffusivities were in the range of 1.2-2.5 x 10 (-10) m(2) s(-1). The study revealed that the rotational diffusivity of the cells, induced by the extracellular environment, also varies with the serine concentration. The drift velocity increased with serine gradients reaching a maximum value of approximately 5.5 microm s(-1) at 1.6 microM microm(-1) after which it decreased. Experimental analysis demonstrated the interdependence of run speed, rotational diffusivity and drift velocity that characterizes the motion. Further, the motion was found to critically depend on the oxygen concentration and energy level of the cells.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1478-3975
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
7
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
026007
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Chemotaxis of Escherichia coli to L-serine.
pubmed:affiliation
Department of Chemical Engineering, Indian Institute of Technology-Bombay, Mumbai, India.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't