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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
5
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pubmed:dateCreated |
1999-2-19
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pubmed:abstractText |
Escherichia coli JM101 cells were subjected to pore-forming electric fields, irradiation with ultraviolet light or oxidative stress by either the lipoxygenase products 9- and 13-hydroperoxyoctadecadienoic acids (9- and 13-HPOD) or hydrogen peroxide. It was found that all chemico-physical stresses enhanced ultraweak light emission from the bacterial cells, the most effective treatment being electroporation (up to 20-fold increase in luminescence compared to the control value), followed by oxidative stress with 9- or 13-HPOD (up to 4-fold increase) and irradiation with UV light (up to 2.8-fold increase). Bacterial luminescence was always in the red edge of the spectrum and was paralleled by changes in membrane oxidative index and specific activity of catalase and superoxide dismutase.
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
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pubmed:status |
MEDLINE
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pubmed:issn |
0884-3996
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pubmed:author |
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pubmed:issnType |
Print
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pubmed:volume |
13
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
287-93
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9839193-Catalase,
pubmed-meshheading:9839193-Electroporation,
pubmed-meshheading:9839193-Escherichia coli,
pubmed-meshheading:9839193-Hydrogen Peroxide,
pubmed-meshheading:9839193-Kinetics,
pubmed-meshheading:9839193-Linoleic Acids,
pubmed-meshheading:9839193-Lipid Peroxides,
pubmed-meshheading:9839193-Luminescent Measurements,
pubmed-meshheading:9839193-Oxidative Stress,
pubmed-meshheading:9839193-Superoxide Dismutase,
pubmed-meshheading:9839193-Ultraviolet Rays
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pubmed:articleTitle |
Ultraweak light emission is a common response of bacterial cells to chemico-physical stress.
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pubmed:affiliation |
Department of Experimental Medicine and Biochemical Sciences, University of Rome Tor Vergata, Italy.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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