Citrus bacterial canker (Xanthonomas axonopodis) is an economically important disease in many tropical and subtropical countries. Several pathotypes have been recognized within the genus Xanthomonas primarily distinguished by their geographical origin and host range in addition to certain genotypic characteristics. Since this detection, quarantine restrictions were enforced to prevent the spread of the pathogen to new areas. However, these efforts were not enough to contain its spread.
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