Corynebacterium
& Listeria
, Pathogenic
Anaerobic
Gram-Positive
Bacilli
,Corynebacteria (Genus Corynebacterium)
Corynbacteria/”corynform bacteria” are non-spore forming, gram positive
bacilli that tends to be clubbed or irregularly shaped (coryne=club).
They are non-motile and it has a club shaped swelling at one or both ends,
hence the name.
Aerobic or facultatively anaerobic
Small, pleomorphic (club-shaped), gram-positive bacilli that appear in short
chains (“V” or “Y” configurations) or in clumps resembling “Chinese letters”
Cells contain metachromatic granules (visualize with methylene blue stain)
Lipid-rich cell wall contains meso-diaminopimelic acid, arabino-galactan
polymers, and short-chain mycolic acids
Lysogenic bacteriophage encodes for potent exotoxin in virulent strains
, Distinguishing Features of CMN Group
Corynebacterium Mycobacterium Nocardia
& Listeria
, Pathogenic
Anaerobic
Gram-Positive
Bacilli
,Corynebacteria (Genus Corynebacterium)
Corynbacteria/”corynform bacteria” are non-spore forming, gram positive
bacilli that tends to be clubbed or irregularly shaped (coryne=club).
They are non-motile and it has a club shaped swelling at one or both ends,
hence the name.
Aerobic or facultatively anaerobic
Small, pleomorphic (club-shaped), gram-positive bacilli that appear in short
chains (“V” or “Y” configurations) or in clumps resembling “Chinese letters”
Cells contain metachromatic granules (visualize with methylene blue stain)
Lipid-rich cell wall contains meso-diaminopimelic acid, arabino-galactan
polymers, and short-chain mycolic acids
Lysogenic bacteriophage encodes for potent exotoxin in virulent strains
, Distinguishing Features of CMN Group
Corynebacterium Mycobacterium Nocardia
