Isolation and Identification of Xanthomonas  Campestris Pv. Campestris Causing Black Rot  on Cauliflower From Plains of Kerala

S. Lakshmi Prasanna; Dr. S. Ravi

Volume : III, Issue : II, February - 2014

Isolation and Identification of Xanthomonas Campestris Pv. Campestris Causing Black Rot on Cauliflower From Plains of Kerala

S. Lakshmi Prasanna, Dr. S. Ravi

Abstract :

Laboratory assay was conducted to detect and identify Xanthomonas campestris pv. campestris naturally infected cauliflower leaves and curds. The semi-selective me-dia, Potato Sucrose Peptone Agar (PSPA) medium was used to isolate the pathogen. Colonies of the pathogen were yellow, cir-cular, slimy, fluidal and convex colonies with entire margin on PSPA medium. Morphological, physiological and bio-chemical characters coupled with pathoge-nicity the pathogen was identified as Xan-thomonas campestris pv. campestris.