title: Excited electronic states in dark biological processes.
mesh_terms: D003624:Darkness; D004583:Electrons; D004735:Energy Transfer; D049454:Firefly Luciferin; D006571:Heterocyclic Compounds; D010084:Oxidation-Reduction; D010545:Peroxides; D010777:Photochemistry
chemical_list: D006571:Heterocyclic Compounds; D010545:Peroxides; D049454:Firefly Luciferin