UV radiation increases the reduced coenzyme Q ratio in marine bacteria.
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.
Dunlap
Walter C
WC
Environmental Biochemistry and Marine Biotechnology, Australian Institute of Marine Science, Townsville, Queensland, Australia. wdunlap@aims.gov.au
Fujisawa
Akio
A
Yamamoto
Yorihiro
Y
D001419:Bacteria / Q000378:metabolism / Q000528:radiation effects*; D008956:Models, Chemical; D010084:Oxidation-Reduction; D017382:Reactive Oxygen Species / Q000378:metabolism; D015398:Signal Transduction; D013997:Time Factors; D014451:Ubiquinone / Q000378:metabolism*; D014466:Ultraviolet Rays; D014733:Vibrio / Q000378:metabolism
D017382:Reactive Oxygen Species; D014451:Ubiquinone