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Ultraweak light emission is a common response of bacterial cells to chemico-physical stress

Authors :
Nicola Rosato
Mauro Maccarrone
Alessandro Finazzi Agrò
Source :
Journal of Bioluminescence and Chemiluminescence. 13:287-293
Publication Year :
1998
Publisher :
Wiley, 1998.

Abstract

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. © 1998 John Wiley & Sons, Ltd.

Details

ISSN :
10991271 and 08843996
Volume :
13
Database :
OpenAIRE
Journal :
Journal of Bioluminescence and Chemiluminescence
Accession number :
edsair.doi.dedup.....4c62e8e988e14f5a1ca6b27e10093129
Full Text :
https://doi.org/10.1002/(sici)1099-1271(1998090)13:5<287::aid-bio489>3.0.co;2-a