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Effect of FccAB and PDO coexpression in P. aeruginosa Pa3K on H2S oxidization. Sulfide was added at 1 mM to initiate the reaction. Sulfide (A), polysulfide (B), sulfite (C), and thiosulfate (D) were consumed or produced by Pa3K (■), Pa3K(pBBR5-fccAB-Cnpdo1) (□), Pa3K(pBBR5-fccAB-Cnpdo2) (△), heat-killed Pa3K(pBBR5-fccAB-Cnpdo1) (▲), and heat-killed Pa3K(pBBR5-fccAB-Cnpdo2) (●). All data are averages of at least three samples with standard deviations (error bars).
