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.

Research, Proteins, Virulence (Microbiology), Pigeons

---

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.

United Kingdom, Analysis, Gene mutations, Gene mutation, Rhizobium, Amino acids, Amino acid synthesis

---

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.

Australia, Health aspects, Growth, Tannins

Similar abstracts:

• Abstracts: Applications of gene replacement technology to Streptocymes clavuligerus strain development for clavulanic acid production
• Abstracts: Purification and characterization of three thermostable endochitinases of a noble Bacillus strain, MH-1, isolated from chitin-containing compost
• Abstracts: H(sub)2O(sub)2-nonproducing Streptococcus pyogenes strains: survival in stationary phase and virulence in chronic granulomatous disease
• Abstracts: Estimation of the proportion of triploids in populations with diploid and triploid individuals. Improved estimation of the proportion of triploids in populations with diploid and triploid individuals
• Abstracts: Genetic variation among Staphylococcus aureus strains from Norwegian bulk milk. Characterization of a multicopper oxidase gene from Staphylococcus aureus

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.