Categories: All - bacteria

by zulaikha hashim 14 years ago

811

STAPHYLOCOCCUS

Staphylococcus aureus is a Gram-positive bacterium that typically forms clusters resembling grapes. It is a facultative anaerobe, meaning it can grow without oxygen, and thrives in simple nutrient media.

STAPHYLOCOCCUS

STAPHYLOCOCCUS AUREUS

no sabe ni hacer ningu mapa le falta mucho pa q me iguale

Cultural Characters

  • facultative anaerobe
  • usually grows in simple nutrient media

    • selective indicator mannitol

  • can tolerate high conc. of NaCl
  • ferments mannitol

    • blood agar : golden yellow

    beta haemolysi (complete)

    Tema principal

    le falta

    Virulence Factor & Pathogenesis

    exotoxins
    haemolysin
    protein A

  • combines with non-specifically with Fc-portion of IgG
  • inhibit opsonization

    • invasins

  • leucocidin-acts on PMN & macrocyte
  • staphylokinase & hyaluronidase-dessiminase

    • clumping factor

  • fibrogen-binding protein
  • important adhesin
  • leads to traumatized tissue and blood clot

    • staphylocoagulase

  • extracellular pt (fibronogen>fibrin)
  • fibrin-for protection from immunology

    • -localization of disease

    Marphology

    opaque,pigmented colonies
    catalase +ve
    arranged in cluster (grape-like)
    spherical cocci
    gram +ve

    Mindomo

    About Mindomo
    Help
    Contact
    Pricing
    Public Mind Map Gallery
    Mind Map Templates

    More Info

    Blog
    Terms of Use
    Privacy Policy
    Security
    Accessibility
    Security Policy

    Faq

    What is Mind Mapping?
    Create a Mind Map Online
    Mind Map Examples
    What is Concept Mapping?
    Concept Map Maker