LAAO activity of wild type strain, mutants and the corresponding complemented strains.

Rf-1: wild-type; B19: nhaD gene-disrupted Rf-1; B19/M: mutant B19 complemented with blank vector pBBR1MCS-5; B19/MN: mutant B19 complemented with recombinant plasmid pBBR1MCS-5/nhaD; B1: sdmT gene-disrupted Rf-1; B1/M: mutant B1 complemented with blank vector pBBR1MCS-5; B1/MS: mutant B1 complemented with recombinant plasmid pBBR1MCS-5/sdmT.