Gram - Cell Wall

Gram - Cell Wall

1. very thin

2. contains 3 layers

3. High lipid content

4. has periplasmic space & porin channel

5. contains endotoxins (Lipid A)

6. blocks cell diffusion

7. NSISSERIA (Gram - Cocci)

   • meningitis
   • gonorrhea

8. Spirochetes (Gram - spiral)

   • syphilis
   • Lyme disease
   • assoc. w/ NUP & NUG
   • stain red

9. Prevotella

   • Assoc. w/ NUP & NUG
   • hormonal ("pregnancy") gingivitis

10. PORPHYROMONAS GINGIVALIS

    • Assoc. w/ periodontal disease
    • produces collagenase
      • breaks down collagen in CT & periodontal attachment
    • tetracycline (anti-collagenase properties)