nicotine and 2- ( 4-chlorophenylthio ) triethylammonium chloride ( cpta ) each inhibit production of the normal carotenoids of rhodomicrobium vannielii ( rhodospirillaceae ) , especially rhodopin , beta-carotene and spirillixanthin , and cause the accumulation of lycopene .
C0007271
carotenoids
C0053396
beta-carotene