Figure 1.

The chemical structures of the rhizobial exopolysaccharide (EPS) repeating units. A)-B) S. meliloti, C) Rhizobium leguminosarum bv. trifolii, D) R. leguminosarum bv. trifolii 4S, E) R. leguminosarum bv. viciae 248. Abbreviations: Glc, glucose, GlcA, glucuronic acid, Gal, galactose, Succ, succinate, and Ac, acetyl.