Singlet molecular oxygen ((1)O2): a possible effector of eukaryotic gene expression.


Biological processes involving light may have both beneficial (photosynthesis) and destructive (photosensitization) consequences. Singlet molecular oxygen, (1)O2, and other reactive oxygen species such as hydrogen peroxide and hydroxyl radical, arise during the interaction of light with photosensitizing chemicals in the presence of molecular oxygen. (1)O2… (More)


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