Roles of Fe superoxide dismutase and catalase in resistance of Campylobacter coli to freeze-thaw stress

Authors
Stead, D Park, SF
Citation
D. Stead et Sf. Park, Roles of Fe superoxide dismutase and catalase in resistance of Campylobacter coli to freeze-thaw stress, APPL ENVIR, 66(7), 2000, pp. 3110-3112
Citations number
15
Categorie Soggetti
Biology,Microbiology
Journal title
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
ISSN journal
00992240 → ACNP
Volume
66
Issue
7
Year of publication
2000
Pages
3110 - 3112
Database
ISI
SICI code
0099-2240(200007)66:7<3110:ROFSDA>2.0.ZU;2-#
Abstract
We demonstrated that oxidative stress plays a role in freeze-thaw-induced k illing of Campylobacter coli following analysis of mutants deficient in key antioxidant functions. Superoxide anions, but not H2O2, were formed during the freeze-thaw process. However, a failure to detoxify superoxide anions may lead to spontaneous disproportionation of the radicals to H2O.