Preliminary studies on excretory components of a virulent strain (F-2) of Pseudomonas solanacearum.

ABSTRACT

The excretory material (EM) was isolated from the culture medium of a virulent strain (F-2) of Pseudomonas solanacearum. Electrophoretic studies depicted the heterogeneous nature of EM and the presence of released lipopolysaccharide in it. Both the exopolysaccharide and the released LPS contained D-galactose as the major sugar constituent together with D-glucose, N-acetyl-D-galactosamine and N-acetyl-D-glucosamine. In addition, L-rhamnose was present as a constituent sugar of the released LPS.