Tellurite resistance (Te(r)) is widespread in nature and it is shown here that the natural resistance of Proteus mirabilis to tellurite is due to a chromosomally located orthologue of plasmid-borne ter genes found in enteric bacteria. The P. mirabilis ter locus (terZABCDE) was identified in a screen of Tn5lacZ-generated mutants of which one contained an insertion in terC. The P. mirabilis terC ...

The activity of 6-[d(-)-alpha-carboxy-3-thienylacetamido] penicillanic acid, BRL2288, was determined against Pseudomonas aeruginosa and various gram-negative bacilli. The majority of Pseudomonas strains (89%) were inhibited by 100 mug of the antibiotic per ml. BRL2288 is twofold more active than carbenicillin against Pseudomonas at 100 mug/ml or less. Among Enterobacteriaceae tested, 87% Entero...

Antimicrobial activities of sesquiterpenoid of Ganoderma were tested against human pathogenic microorganisms. Four out of 11 species of Ganoderma showed good antimicrobial activity. Minimal inhibitory concentration was determined for the sesquterpenoid extract of Ganoderma Mazandaran Ganoderma lipsiense, Ganoderma multicornum and Ganoderma lucidum on selected microorganisms. Proteus mirabilis (...

Experimental, ascending acute pyelonephritis in rats was produced by injecting 0 x 5 ml of 10(9) bacteria/ml into the urinary bladder via the urethra. No traumatic manipulation of the ureters of kidneys was necessary. A grading system for kidney lesions based on macro- and microscopical examination was used. The capacity of different Escherichia coli and proteus strains to induce acute pyelonep...