Table 2.  Classification of Ralstonia solanacearum into biovars.
(Adapted from French et al, 1995)

 

Biovars

Physiological Tests

1

2

3

4

5

Utilization of disaccharides

 

 

 

 

 

Cellobiose

-

+

+

-

+

Lactose

-

+

+

-

+

Maltose

-

+

+

-

+

 

 

 

 

 

 

Oxidation of alcohols

 

 

 

 

 

Dulcitol

-

-

+

+

-

Mannitol

-

-

+

+

+

Sorbitol

-

-

+

+

-


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