Recognition of Pseudomonas pickettii in the clinical laboratory: biochemical characterization of 62 strains

Abstract

Pseudomonas pickettii strains were studied to determine the characteristics essential for their identification in the clinical microbiology laboratory. Preliminary investigations indicated that these glucose oxidizing, denitrifying, gram negative rods were quite similar to an unclassified group of clinical isolates designated VA 2. Gas liquid chromatography of trimethylsilyl derivatives of whole cell hydrolysates of P. pickettii and VA 2 strains yielded nearly identical elution profiles. The VA 2 cultures were concluded to be probable strains of P. pickettii. A method is presented for differentiating cultures of P. pickettii from other similar bacteria encountered in clinical specimens.