Table 1 Morphological, Physiology and biochemical characteristics of strain XW2

Cell sizes, μm

1.5-2.5 × 0.5-0.8

Growth with 15 %(w/v)NaCl

-

Mobility

+

Liquefication of gelatin

+

Form of spores

Elliptical

Catalase activity

+

Position of spores

Central

Lecithinase activity

+

Capsule

-

Oxidase activity

+

Gram staining

+

Reduction of nitrates

+

Growth at 5 °C

-

Litmus milk reaction

Red

Growth at 10 °C

+

Production of indole

-

Growth at 45 °C

+

Methyl red reaction

+

Growth at 50 °C

-

Production of hydrogen sulfide

+

Growth at pH 3

-

Voges-Proskauer reaction

+

Growth at pH 4

+

pH Voges-Proskauer broth

6.77-7.32

Growth at pH 5.7

+

Degradation of tyrosine

-

Growth at pH 10

+

Production of gas from glucose

-

Growth at pH 11

-

Hydrolysis of casein

+

Growth with 0.2 %(w/v)NaCl

+

Hydrolysis of starch

+

Growth with 5 %(w/v)NaCl

+

Anaerobic growth in glucose agar

-

Growth with 10 %(w/v)NaCl

+

Phenylalanine deaminase activity

-