Caffeine bleaching of Stentor coeruleus.
D002110:Caffeine / Q000494:pharmacology*; D016798:Ciliophora / Q000187:drug effects* / Q000378:metabolism; D010858:Pigmentation / Q000187:drug effects*; D010860:Pigments, Biological / Q000032:analysis / Q000096:biosynthesis
D010860:Pigments, Biological; D002110:Caffeine