Gram-Negative Facultative Anaerobes Flashcards
+ Rods; usually motile
+ Mesophilic
+ Coliform
+ Found in intestinal tract of humans, animals, birds
Citrobacter
+ Motile or non-motile rods
+ Mesophilic
+ Coliform
+ Strains that are pathogenic and non-pathogenic to man and animals
Escherichia
+ Motile rods
+ Mesophilic
+ Coliform
+ Found in intestinal tract of humans, animals, birds
Enterobacter
+ Motile, capsulated rods
+ Mesophilic
+ Coliform
+ Found in intestinal tract of humans, animals, birds, soil water and grains
Klebsiella
+ Motile rods
+ Mesophilic
+ Causes spoilage of refrigerated meats and vegetable products
+Coliform
Hafnia
+ Rods (usually motile)
+ Mesophilic
+ > 2000 serovars; human pathogen
+ Major cause of foodborne disease
Salmonella
+ Non-motile rods
+ Mesophilic
+ Intestinal tract of humans and primates
Shigella
+ Motile rods
+ Mesophilic; some psychrotrophic
+ Many involved in food spoilage
Proteus
+ Motile and non-motile rods
+ Psychrotrophic
+ Found in intestinal tract of animals
Yersinia
+ Motile rods
+ Occur in the environment
+ Food Spoilage organism
Serratia
+ Motile curved rods
+ Mesophilic
+ Some species use NaCl for growth
+ Some species are human pathogens
Vibrio
+ Motile rods
+ Psychrotrophic
+ Found in the intestinal tract of fish
+ Foodborne pathogen
Aeromonas
+ Motile rods
+ Mesophilic
+ More prevalent during warmer seasons
+ Found in surface water, soil, fresh water fish and aquatic animals
Plesiomonas
+ Parasites; multiply only in living cells
+ Transmitted by lice, fleas, ticks & mites
Rickettsias
+ Non-motile
+Mesophilic
+ More heat resistant than many pathogenic bacteria
+ Destroyed by pasteurization
Coxiella
