be scattered or arranged in concentric ring (Sharma et al., 2011). The pathogen P. vexans
had a very restricted host range, its enzymatic activity do not appear to be very strong,
possibility of toxin production-a toxin that played a very important role in pathogenesis and
disease development was a distinct possibility. The present investigation was aimed to
establish enzyme activity and production of toxins by different isolate of P. vexans in vitro …