Ultrastructure of surface components of Streptococcus gallolyticus (S. bovis) strains of differing virulence isolated from pigeons
Article Abstract:
A study was conducted to analyze the surface parts of Streptococcus gallolyticus strains with different virulence determined from pigeons. Capsular material was obtained by transmission electron microscopy after polycationic ferritin labeling and immunostabilization. Results indicated that morphological variations in surface structure exist among virulent and low virulence pigeon S. gallolyticus strains.
Publication Name: Microbiology
Subject: Biological sciences
ISSN: 1350-0872
Year: 1999
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Evidence for redundancy in cysteine biosynthesis in Rhizobium leguminosarum RL3841: analysis of a cysE gene encoding serine acetyltransferase
Article Abstract:
Results suggest that Rhizobium leguminosarum possesses an alternative pathway for cysteine biosynthesis in addition to that mediated by cysE gene encoded serine acetyltransferase. Cysteine biosynthesis is maximum during early exponential growth and ammonium ion represses the growth by about twofold.
Publication Name: Microbiology
Subject: Biological sciences
ISSN: 1350-0872
Year: 2001
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Effect of hydrolysable and condensed tannins on growth, morphology and metabolism of Streptococcus gallolyticus ( S. caprinus) and Streptococcus bovis
Article Abstract:
Research reveals that Streptococcus gallolyticus (S. caprinus) possesses the ability to resist tannins during their growth while S. bovis are less adapted. Data show that S. gallolyticus tolerate tannin levels of 10-fold greater than those of S. bovis.
Publication Name: Microbiology
Subject: Biological sciences
ISSN: 1350-0872
Year: 2001
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