Bacterial wilt of common bean (Phaseolus vulgaris) caused by Curtobacterium flaccumfaciens pv. flaccumfaciens in Iran

Abstract

Bacterial wilt of common bean (Phaseolus vulgaris L.) (cv. Talash and Akhtar) caused by a yellow variant of Curtobacterium flaccumfaciens pv. flaccumfaciens was identified in East Azerbaijan Province, northwestern Iran. Interveinal necrotic lesions surrounded by chlorotic margins leading to total wilt were observed with up to 50 % of plants infected in some fields. The causal agent was characterized using biochemical tests and confirmed by specific polymerase chain reaction primers. This is the first report of bacterial wilt of common bean in Iran.