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UV radiation increases the reduced coenzyme Q ratio in marine bacteria
Walter C Dunlap1, Akio Fujisawa, Yorihiro Yamamoto
1Environmental Biochemistry and Marine Biotechnology, Australian Institute of Marine Science, Townsville, Queensland, Australia. wdunlap@aims.gov.au
Redox Report : Communications in Free Radical Research
|April 12, 2003
Abstract:
Oxidative stress is often indicated by an oxidative shift in cellular coenzyme Q (ubiquinol/ubiquinone) redox status. However, exposing two cultures of marine bacteria to intense UVA radiation increased their relative abundance of the reduced form of coenzyme Q, presumably as an adaptive response to photo-oxidative stress. This UV-signalling pathway in marine bacteria may be useful to examine molecular processes that regulate cellular coenzyme Q redox balance.