title: Urease-negative strains of Clostridium sordellii.
abstract: Twenty-seven of 37 non-toxigenic, urease-negative strains originally identified as Clostridium bifermentans that were isolated in the Antarctic are reidentified as C. sordellii by the tests for DNA-DNA homology, by the absence of mannose in the cell wall, and by growth inhibition of mannose. The test for cell wall sugar components of urease-negative and -positive strains of C. sordellii revealed that glucose, mannose, and rhamnose could not be detected in any of eight urease-negative strains used by galactose was detectable in seven of the eight strains and that glucose or galactose or both of the two sugars were present in the urease-positive strains tested.
mesh_terms: D000864:Antarctic Regions; D002473:Cell Wall / Q000032:analysis; D003013:Clostridium / Q000032:analysis / Q000145:classification* / Q000201:enzymology; D004269:DNA, Bacterial / Q000032:analysis; D005690:Galactose / Q000032:analysis; D005947:Glucose / Q000032:analysis; D008358:Mannose / Q000032:analysis; D009690:Nucleic Acid Conformation; D012210:Rhamnose / Q000032:analysis; D014510:Urease / Q000096:biosynthesis
chemical_list: D004269:DNA, Bacterial; D014510:Urease; D005947:Glucose; D008358:Mannose; D012210:Rhamnose; D005690:Galactose