Facultatively anaerobic gram-negative rods

Enterobacteria : inhibits the intestine of animal, but, �׷��� ���� �͵� �ִ�.

Vibrios : curved and straight rods , � ���� luminescent�� �͵� �ִ�.(by bacterial luciferase)

<some medically important gram-negative facultative anaerobes>

 

species	characteristics	disease
Enterobacteria
Escherichia coli	hundreds of different strains; plasmids often influence virulence	newborn meningitis, diarrhea, urinary infections
Klebsiella pneumoniae	nonmotile; large capsules	pneumonia
Proteus mirabilis	swarms across medium; urea metabolized to ammonia	urinary infections
Salmonella typhi	hydrogen sulfide producer; only one flagellar type	typhoid fever; human source
Salmonella enteritidis	hundreds of strains based on flagellar type	gastroenteritis, :"food poisoning"; animal source
Serratia marcescens	red-pigmented colonies	urinary and blood stream infections
Yersinia pestis	nonmotile; small colonies; infects rodents and their fleas	bubonic plague; transmission by flea
Vibrios
Vibrio cholerae	require special high-salt medium	cholera, a toxin-mediated small intestine disease
Vibrio parahaemolyticus	(as above)	gastroenteritis-cramps and diarrhea last a day or less; source: seafood