Table 1. Characteristic of sulfur oxidizing bacterium isolate T307. |
Characteristic |
T307 |
Alcaligenes sp.a |
Thiobacillus delicatusb |
Cell shape (size: µm) |
Short rod (0.5 x 0.9) |
Rod (0.5-1.0 x 0.5-2.6) |
Short rod (0.4-0.6 x 0.7-1.6) |
Cell arrangement |
single, rarely in pairs |
Single, rarely in pairs |
Single, rarely in pairs |
Motility |
Non motile |
Motile |
Non motile |
Catalase |
+ |
+ |
+ |
Oxidase |
+ |
+ |
- |
Facultative anaerobec |
+ |
V |
V |
Chemolithotroph |
+ |
+ |
+ |
Mixotroph |
+ |
+ |
+ |
Chemoorganotroph |
+ |
+ |
+ |
Nitrate
reduction |
- |
V |
- |
Growth at 4 and 42ºC |
+/+ |
+/+ |
-/+ (15-42ºC) |
Optimum temperature (ºC) |
25-30 |
20-37 |
30-35 |
Growth at pH 2-4 |
- |
ND |
- |
Growth range: pH |
5-9 |
ND |
5.0-7.0 |
Optimum pH |
7.0 |
7 |
5.5-6 |
Fructose |
(+) |
V |
(+) |
Maltose |
- |
V |
(+) |
Sucrose |
- |
V |
ND |
Lactose |
- |
V |
ND |
Mannitol |
- |
V |
ND |
Arginine |
- |
V |
ND |
Hydrolysis of starch |
- |
V |
ND |
Sodium acetate |
+ |
+ |
ND |
Sodium formate |
+ |
ND |
ND |
API 20E, Biomerieux |
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Citrate |
- |
+ |
+ |
Indole |
- |
- |
ND |
Voges-Proskauer |
- |
ND |
ND |
H2S production |
- |
- |
ND |
Urease |
+ |
V |
+ |
Gelatin |
+ |
V |
ND |
O-F (glucose) |
-/- |
V |
-/- |
Mannose |
- |
V |
ND |
Arabinose |
- |
V |
ND |
Amygdalin |
- |
- |
ND |
Saccharose |
- |
- |
ND |
Rhamnose |
- |
V |
ND |
Sorbitol |
- |
V |
ND |
Inositol |
- |
V |
ND |
Ornithine decarboxylase |
- |
V |
ND |
Lysine decarboxylase |
- |
V |
ND |
Tryptophan deaminase |
- |
V |
ND |
aCode from Kerster and Ley, 1984, bCode from Kelly and Harrison, 1989, cmixotrophic and chemolithotrophic media with thiosulfate, (+) = weakly positive, ND = not determined, V = Variable depending on species/strain. |
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