A pyridine nucleotide-independent aldehyde dehydrogenase involved in the alkane oxidation of ‘Acetobacter rancens’

The strain ‘Acetobacter rancens’ CCM1774 was investigated concerning the occurrence of aldehyde dehydrogenases after growth on different carbon sources. Two constitutive enzyme activities, a NADP+-dependent one and a pyridine nucleotide-independent one, have been detected. The catalytic properties of the latter membrane-bound aldehyde dehydrogenase suggest its participation in the degradation of long-chain n-alkanes.