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Tn5096-induced mutants of G. polyisoprenivorans DSM 44266 with modified carotenoid biosynthesis. Mutants 44-07 and 49-05 were defective in carotenoid synthesis; mutants 33-45 and 38-33 exhibited a coloration slightly different from that of the wild type; and mutant 47-46 obviously overproduced a red carotenoid.
