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  • Title: Urease-negative strains of Clostridium sordellii.
    Author: Nakamura S, Shimamura T, Nishida S.
    Journal: Can J Microbiol; 1976 May; 22(5):673-6. PubMed ID: 1276996.
    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.
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