what enzymes or toxins are produced by xanthomonas campstris
89Abstract: Xanthomonas campestris pv. zinniae (XCZ) has been found to rapidly degrade cercosporin, a photoactivated polyketide toxin produced by fungi in the genus Cercospora.he bacterium Xanthomonas campestris pv. zinniae (XCZ) is a pathogen of zinnia, causing bacterial leafspot disease. This disease was first reported in Italy in 1929 and in North America in 1972 (1, 15).