Enterobacterales

From IDWiki

Background

Microbiology

Identification

Lactose PPA H2S Mannitol Indole Urease Growth on Citrate Other Tests Organism
+ + + + + nonmotile, methyl red – Klebsiella oxytoca
Escherichia coli
+ + TSI A/A with gas, nonmotile Klebsiella pneumonia
+/± + TSI A/A with gas, motile, arginine dihydrolase + Enterobacter cloacae
+ TSI A/A with gas, motile, arginine dihydrolase – Klebsiella aerogenes
+/± –/+ + –/± + motile, methyl red + Citrobacter freundii
± ± + + +/± + motile, methyl red + Citrobacter koseri
+ ± + Yersinia enterocolitica
+ oxidase + Plesiomonas shigelloides
+ + + + –/± Proteus vulgaris
+ +/± Proteus mirabilis
± + TSI with gas Proteus penneri
–/± + + TSI with gas Morganella morganii
+ + + + TSI no gas Providencia rettgeri
+ + TSI no gas Providencia stuartii
+ + Edwardsiella tarda
+/± + ± Salmonella
+ + Escherichia coli (inactive)
+ DNAse – Hafnia
DNAse + Serratia marcescens
Shigella (other than S. dysenteriae)
Shigella dysenteriae