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Gram negative, Gram positive, Gram negative - Coggle Diagram
Gram negative
Rod
gelatin liquefaction:
+:
H2S production
+
proteus vulgaris
--
Pseudomonas aeruginosa
--
citrate use
+
VP reaction
+
enterobacter aerogenes
--
Alcaligenes Faecalis
--
E. coli
Gram positive
Lactose fermentation with phenol red broth
+. (S. aureus, S. epidemidis, Lactococcus lactis)
Catalase activity
+
S. aureus & S. epidermidis
Mannitol fermentation: tests if microbe can ferment mannitol
+
S. aureus
--
S. epidermidis
--
NO3 reduction: tests if microbe is able to reduce nitrate
Lactococcus lactis: does not
-- (Micrococcus luteus & Bacillus cereus)
Starch Hydrolysis
+
Acid production in sucrose fermentation
B. cereus
--
Produces urease in urease activity test
Micrococcus luteus
Gram negative
dextrose fermentation
+
Indole production: tests if microbes are able to convert tryptophan into indole
+
Urease activity: tests if microbes are able to produce urease
+
Proteus vulgaris
--
E. coli
--
VP reaction: tests if microbe can turn products into something they can neutralize
+
Enterobacter aerogenes
--
NO3 reduction: tests if microbe is able to reduce nitrate
+
Lipid hydrolysis: tests if microbe is able to produce exoenzyme lipase
Pseudomonas aeruginosa: it does
--
Gelatin liquidification: tests if microbe is able to produce gelatinase
alcaligenes faecalis: does not