Test

Reaction

Gram reaction

-

Fluorescent pigment on King’s B medium

+

Growth at 37º C

-

Pectolytic activity on potato and carrot

+

Oxidative/Fermentative

O

Levan formation

-

Oxidase

-

Arginine dihydrolyse

-

Urease

-

Gelatin hydrolysis

+

Acid from: Cellobiose

-

Trehalose

-

Sucrose

-

D-arabinose

-

Sorbitol

+

Glocose

+

Fructose

+

Manitol

+

Citrate test

+
+: Positive reaction and -: Negative reaction
Table 2: Some phenotypic characteristics of 15 representatives and defined Pseudomonas viridiflava strains isolated from alfalfa plants in Hamedan province (Iran).