TABLE 1

Biochemical characteristics for the identification of species of the genus Enterobactera

OrganismYellow pigmentLDCADHUREESCFermentation
INOSORSACMELRAFAMGDULADOARL
E. amnigenus biogroup 1++++V
E. amnigenus biogroup 2V++++
E. cancerogenus++
E. asburiae(−)+/−+++V(+)+
E. cloacae subsp. cloacae+(−)+++(+)(+)(−)(−)(−)
E. cloacae subsp. dissolvens++w+V+++++
E. hormaechei subsp. hormaechei(+)(+)+++
E. kobei++++++++V
E. ludwigii(−)+++++++
E. nimipressuralis++++
E. aerogenes+++++++++
E. gergoviae(+)+w+++++
E. mori++NDND+ND+ND+NDNDNDND+
E. bugandensis++w++ND++ND+ND
  • a Data are from references 4, 5, 12, 48, 55, 75, 82, 86, and 120. Abbreviations: LDC, lysine decarboxylase; ADH, arginine dihydrolase; URE, urease; ESC, esculin; INO, inositol; SOR, sorbitol; SAC, saccharose; MEL, melibiose; RAF, raffinose; AMG α-methyl-d-glucoside; ADO, adonitol; ARL, d-arabitol. +, positive reaction (>,90% of strains); (+), generally positive reaction; +w, weakly positive reaction; V, variable reaction; (−), generally negative reaction; −, negative reaction (<90% of strains); +/−, variable depending on the method used; ND, not determined.