Emerging Aeromonas Species Infections and Their Significance in Public Health
Table 2
The Biochemical Identification of Motile Aeromonas species.
Characteristic
A. hydrophila
A. bestarium
A. caviae
A. media
A. eucrenophila
A. sobria
A. veronii biovar sobria
A. jandaei
A. veroni biovar veroni
A. schubertii
A. trota
A. allosaccharophila
A. encheleia
A. popoffii
Hybridization group
HG-1
HG-2
HG-4
HG-5
HG-6
HG-7
HG-8
HG-9
HG-10
HG-12
HG-14
HG-15
HG-16
HG-17
Esculin hydrolysis
+
+
+
+
+
−
−
−
+
−
−
d
+
−
Gas from glucose
+
+
−
−
+
+
+
+
+
−
+
+
+
+
Voges-Proskauer
+
+
−
−
−
+ weak
+
+
+
d
−
−
−
+
Indol
+
+
+
d
+
+
+
+
+
−
+
+
+
d
Pyrazinzmidase
+
−
+
d
+
nd
−
−
−
−
−
nd
nd
nd
L-arabinose
d
+
+
+
+
−
−
−
−
−
−
d
−
nd
D-mannitol
+
+
+
+
+
+
+
+
+
−
+
+
+
+
Sucrose
+
+
+
+
d
+
+
−
+
−
−
+
+
−
Lysine decarboxylase
+
−
−
−
−
+ weak
+
+
+
+
+
+
−
−
Ornithine decarboxylase
−
−
−
−
−
−
−
−
+
−
−
d
−
−
Arginine dihydrolase
+
+
+
+
+
−
+
+
−
+
+
d
d
+
Arbutin hydrolysis
+
+
+
+
+
nd
−
−
+
−
−
nd
−
nd
H2S production
+
+
−
−
+
nd
+
+
+
−
+
nd
nd
nd
Hemolysis
+
+
d
−
−
−
+
+
+
+
+
nd
nd
−
Ampicillin 10 μg
R
R
R
nd
nd
S
R
R
R
R
S
nd
R
nd
Carbenicillin 30 μg
R
R
R
nd
nd
S
R
R
R
R
S
nd
R
nd
Cephalothin 30 μg
R
R
R
d
S
S
S
S
D
S
R
nd
nd
nd
Colistin 4 μg/mL
d
d
S
S
S
nd
S
R
S
S
S
nd
nd
nd
HG: hybridization group; +: >75% of strains positive; d: 26–74% of strains positive; −: <25% of strains are positive; nd: not determined; R: resistant; S: sensitive. Source: Carnahan and Joseph [7].
