Abstract
The presence of urease and NADPH-specific glutamate dehydrogenase (GDH) coding plasmid in Bacillus badius was suggested by the loss of enzyme activites with a mitomycin C treatment and by the presence of 3 plasmids in urease-active strains compared to 2 plasmids in urease-negative strains. Furthermore two-dimensional protein gel electrophoresis showed that the urease-positive strains had some additional proteins compared to urease-negative strains. The two common plasmids had a size of 14.7 kb and 5.9 kb. The plasmid that was missing in the urease-negative strains had a size of 44.0 kb. The plasmids were purified and restriction map for AvaI, Bam HI and EcoRI was constructed for each plasmid. Hybridization tests showed that all three plasmids in Bacillus badius were independent entities.
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