Electronic Journal of Biotechnology ISSN: 0717-3458
  © 2008 by Universidad Católica de Valparaíso -- Chile
Vol. 11 No. 2, Issue of April 15, 2008
 


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
 (sulfide, thiosulfate)

+

+

+

 Mixotroph

+

+

+

 Chemoorganotroph
 (i.e. yeast extract, peptone)

+

+

+

 Nitrate reduction
 (heterotroph)

-

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

 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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