Morphology of Xanthomonas oryzae. (a) Strands and condensed
droplets of ooze consisting of X. oryzae pv. oryzicola cells coated in
extracellular polysaccharide exuded on to the surface of an infected rice leaf.
(b) Colonies of X. oryzae. pv. oryzae on glucose yeast extract agar. (c) Scanning
electron micrograph of a single X. oryzae pv. oryzae cell (bar, 1.0 µm; courtesy
of K. Tsuchiya).