7. ANAEROBIC BACTERIA: D. ANAEROBIC NONSPORE-FORMING GRAM-POSITIVE BACILLI

• Normal biota of animal and human mucous membranes

• Exudate contains sulfur granules, dense clumps of bacteria

• Gram-positive bacilli with a beaded appearance, often filamentous

• Colony morphology: Smooth to molar toothlike

Aerobic Actinomyces

• Which causes abdominal and chest infections and pelvic actinomycosis in women with intrauterine devices, is the most common pathogen

Actinomyces israelii 

• Often called anaerobic diphtheroids

• Normal biota of the skin, mouth, and GI tract

• Rarely pathogenic

• Catalase & Indole = POSITIVE

Cutibacterium and Propionibacterium

• Associated with BV, PID, and abdominal infections

• Curved bacilli

• Motile, Catalase & Indole = NEGATIVE

• INHINITED BY & SUSCEPTIBLE TO: Vancomycin

Mobiluncus

• Motile, Catalase & Indole = NEGATIVE

• INHINITED BY & SUSCEPTIBLE TO: Vancomycin

Mobiluncus

• This organism helps to maintain an acidic environment in the vagina.

• If the population of lactobacilli decreases, the risk of BV increases

• Normal biota of the GI and female genital tracts

Lactobacillus

• Rarely pathogenic

• Aerotolerant anaerobes SBA: small alpha hemolytic colonies

• Catalase & Motility = NEGATIVE

Lactobacillus

Mostly nonpathogenic normal oral and intestinal biota

Bifidobacterium & Eubacterium

Part of the normal human intestinal microbiome

Eggerthella