Angular Leaf Spot of Iron Wood Incited by a Pathovar of Pseudomonas syringae

A fluorescent pseudomonad inciting brown angular leaf spots on iron wood (Parotia persica) in Mazandaran forest was isolated and identified as a pathovar of Pseudomonas syringae. Strains assimilated adonitol and L-tartrate but not lactate or D-tartrate as carbon sources for growth. The electrophoretic profiles of cell proteins of strains isolated from iron wood were very similar but differred markedly from protein profile of P. syringae pv. syringae.