INTRODUCTION Bacteria of the genus Proteus are a common cause of urinary tract infections. The O-polysaccharide chain of their LPS (O-antigen) defines the serological specificity of these bacteria. Based on the immunospecificity of the O-antigens, two species, P. mirabilis and P. vulgaris, were classified into 49 O-serogroups, and more O-serogroups for strains of these species and P. penneri ha...

The so-called Proteus-Providencia group is constituted at present by three genera and 10 species. Several of the recognized species are common opportunistic pathogens for humans and animals. Different methods based on the study of phenotypic characters have been used in the past with variable levels of efficiency for typing some species for epidemiological purposes. We have determined the rRNA ...

The name Proteus penneri sp. nov. is proposed for a group of organisms previously called Proteus vulgaris indole negative or P. vulgaris biogroup 1. All of these strains were salicin negative, esculin negative, and chloramphenicol resistant (zone size, less than 14 mm). DNA relatedness studies indicated that when DNA from P. penneri strain 1808-73 was labeled and tested against unlabeled DNA fr...

The appearance of diverse morphological forms in Proteus vulgaris OX-19 (Stempen and Hutchinson, 1951) stimulated interest in a cytological investigation of the organism to compare the chromatinic structures in the large bodies and other "atypical" forms with those in the "normal" rods. Cytological studies on large bodies of Proteus have been previously reported by KlienebergerNobel (1949), Tul...

During the period of 1971 to 1979, 172 Proteus mirabilis and 17 Proteus vulgaris strains were collected from blood cultures. Of these strains, 144 could be grouped into 25 O antigens. The most common antigens were O3, O23, O10, O30, and O24, which represented 46.1% of all strains. The O antigen distribution of strains isolated from blood cultures did not differ significantly from that of fecal ...

The genus Proteus along with genus Providencia and Morganella belongs to the tribe Proteeae of the family Enterobacteriaceae. The genus Proteus currently consists of four named species (P.mirabilis, P.penneri, P.vulgaris, P.myxofaciens) and four unnamed genomospecies (3, 4, 5, and 6). Genomospecies 3 was named Proteus hauseri to honor Hauser who first described the genus. [13] Both P. mirabilis...

The analytical electrophoretic pattern of the buffer-soluble proteins extracted from bacterial cells is both characteristic and descriptive of the organism (Hess et al., 1957; Wagman et al., 1958; Rodenberg, 1958). Further, a relatively large fraction of the material of the cell can be studied by the electrophoretic method. Hess et al. (1957) using successive extractive procedures on three stra...

Calluna vulgaris L. Hull (Ericaceae) has been used for treatment of urinary tract infections in traditional medicine. In this study we analyzed in vitro antibacterial activity of the plant extracts on different strains of Escherichia coli, Enterococcus faecalis and Proteus vulgaris, as well as the concentrations of total phenols and flavonoids in the extracts. Minimum inhibitory concentration (...

Imipenem was found to inhibit Proteus vulgaris beta-lactamase in a progressive manner. Kinetic experiments confirmed that the inactivated enzyme was not completely recovered after intact imipenem had been exhausted.