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Subject: First confirmed report of citrus canker in Bolivia
Date posted: August 20, 2001
Source: PRO-MED Mail

In Southamerica, Xanthomonas campestris pv. citri Dye 1978, the causal agent of citrus canker has been known to occur in Argentina, Brazil, Chile, Paraguay, and Uruguay. It was suspected to be present also in Bolivia, but until recently there were no confirmed reports. During 1999-2000, lesions were observed on leaves, twigs, and fruits on cultivated citrus in the Cochabamba and Santa Cruz Departments. Gram negative bacteria producing yellow-pigmented, mucoid colonies on yeast dextrose agar were consistently isolated from the leaf lesions. Extensive pathogenicity tests and molecular analyses were consistent with membership of X. campestris pv. citri . These findings were further corroborated by the fingerprinting studies, which highlighted close similarities between the isolates and named reference material. Isolates have been placed in the IMI culture collection, CABI Bioscience, UK (IMI 385155, IMI 185156 & IMI 385157). For more info see Abstracts from the International Citrus Canker Research Workshop, 2000:
http://doacs.state.fl.us/~pi/abstracts.pdf