the prototype Rhodococcus sp. strain IGTS8 were used in Southern hybridization and PCR
experiments to establish the DNA relatedness in six new rhodococcal isolates which are
capable of utilizing DBT as a sole sulfur source for growth. The ability of these strains to
desulfurize appears to be an exclusive property of a 4-kb gene locus on a large plasmid of
ca. 150 kb in IGTS8 and ca. 100 kb in the other strains. Besides a difference in plasmid …