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J Clin Microbiol. 1976 November; 4(5): 443-449

Fluorescent pseudomonads capable of growth at 41 degrees C but distinct from Pseudomonas aeruginosa.

ABSTRACT

One hundred and twenty-seven apyocyanogenic fluorescent Pseudomonas strains capable of growth at 41 degrees C, but differing from Pseudomonas aeruginosa, were typed serologically and tested for pyocin production, antibiotic susceptibility, selected biochemical reactions, and utilization of selected substrates. Results were compared with those from 40 apyocyanogenic and 14 pyocyanin-producing strains of P. aeruginosa. Unidentified fluorescent Pseudomonas (UFP) strains generally were not agglutinated by P. aeruginosa antisera and showed little or no pyocin activity. In contrast to P. aeruginosa strains, UFP strains usually failed to oxidize D-gluconate or reduce nitrate to nitrogen gas. They could not use D-gluconate or D-mannitol as sole carbon source and were susceptible to kanamycin. The cellular fatty acid compositions of major UFP groups resembled those of the alcaligenes-stutzeri groups.