Tryptic soy agar
Company: BD
Catalog#: 236950
Product evaluation:
Observation of Pneumococcal Phase Variation in Colony Morphology
[Abstract]  Streptococcus pneumoniae (pneumococcus) is an important human pathogen that causes pneumonia, meningitis, sepsis, and otitis media. This bacterium normally resides in the nasopharynx as a commensal, but sometimes disseminates to sterile sites of humans and causes local or systemic inflammation. This biphasic behavior of S. pneumoniae is correlated with a reversible switch between the opaque and transparent colony forms on agar plates, a phenomenon referred to as phase ...

Analysis of the Virulence of Uropathogenic Escherichia coli Strain CFT073 in the Murine Urinary Tract
[Abstract]  This urinary tract infection model was used to monitor the efficacy of a new virulence factor of the uropathogenic Escherichia coli strain CFT073 in vivo. The new virulence factor which we designated TIR-containing protein C (TcpC) blocks Toll-like receptor signaling and the NLRP3 inflammasome signaling cascade by interacting with key components of both pattern recognition receptor systems (Cirl et al., 2008; Waldhuber et al., 2016). We infected wild type and ...

Preparation and Analysis of Crude Autolytic Enzyme Extracts from Staphylococcus aureus
[Abstract]  The metabolism of the cell surface during bacterial cell division involves synthesis and degradation of peptidoglycan (PGN), the major component of the bacterial cell wall. Bacteria have to ensure that their surface remains capable of withstanding high turgor pressures and, simultaneously, that the PGN at their surface is concealed from receptors produced by the host innate immune system. For cell separation to occur, and for PGN to be kept concealed, “old” PGN is degraded by specific PGN ...

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