International Sugar Journal

Unravelling pathogenicity of Xanthomonas albilineans, the causal agent of sugarcane leaf scald † [Full subscriber]

Xanthomonas albilineans is a systemic, xylem-invading pathogen that causes leaf scald in sugarcane. Symptoms vary from a single, white, narrow, sharply defined stripe to complete wilting and necrosis of infected leaves, leading to plant death. X. albilineans produces the toxin, albicidin, that blocks chloroplast differentiation, resulting in disease symptoms. Albicidin is the only previously known pathogenicity factor in X. albilineans, yet albicidin-deficient mutant strains are still able to efficiently colonise sugarcane. The complete genome of strain X. albilineans GPE PC73 from Guadeloupe was recently sequenced and annotated, providing a valuable tool to help identify new pathogenicity factors in this pathogen.…

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