Occurrence, Isolation, and Identification of Acidovorax citrulli from Melon in Turkey
Horuz, S., Cukurova University, Adana (Turkey). Plant Protection Dept. | Cetinkaya-Yildiz, R., Biological Control Research Station, Adana (Turkey) | Mirik, M., Namık Kemal University, Tekirdag (Turkey). Plant Protection Dept. | Aysan, Y., Cukurova University, Adana (Turkey). Plant Protection Dept.
During February and August of 2010 and 2011, disease symptoms were detected in melon (Cucumis melo cv. Surmeli) fields and commercial nurseries in Adana and Mersin provinces (Eastern Mediterranean Region, Turkey). Lesions on leaves and fruits were observed in nearly 75 and 85 acres production areas of melon in 2010 and 2011, respectively. Initial symptoms were water-soaked irregular spots, light brown to reddish spots advancing through veins on leaves, small water-soaked lesions, greasy, dark olive green colour areas on the surfaces of melon fruit followed by brown lesions, softening, and cracks. Thirty-five non-fluorescent, slow-growing, round, cream and Gram-negative bacterial isolates were isolated from symptomatic plant materials. The pathogenicity of the isolates was proved using melon seedlings and fruits. According to classical, serological, and molecular assays, the causal organism was identified as Acidovorax citrulli. To the best of our knowledge, this is the first report and occurrence of bacterial fruit blotch disease on melon as a new host in Turkey.
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