Phaseolus lunatus,a New Host of Xanthomonas axonopodis pv. phaseoli in Iran |
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| Authors: | Ebrahim Osdaghi Ali Akbar Zademohamad |
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| Affiliation: | 1. Department of Plant Protection, Faculty of Agriculture, Shiraz University, Shiraz, Iran;2. Department of Plant Protection, Faculty of Agriculture, Zanjan University, Zanjan, Iran |
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| Abstract: | Common bacterial blight caused by Xanthomonas axonopodis pv. phaseoli (Xap) is one of the most destructive diseases limiting the production of common bean (Phaseolus vulgaris) in Iran. The disease has previously been described on common bean and mung bean from several regions of Iran, including the central plain and south‐western provinces. In this study, lima bean (Phaseolus lunatus cv. Christmas) plants are being reported as a new natural host of Xap in East Azerbaijan and West Azerbaijan Provinces, northwestern Iran. Disease symptoms consisted initially of water‐soaked spots that progressed to irregular necrotic lesions with chlorotic margins. Infection was observed to affect up to 40% of plants in the field. Identification of the pathogen was based on the biochemical and molecular characteristics, as well as the pathogenicity tests. To our knowledge, this is the first report of X. axonopodis pv. phaseoli causing common bacterial blight on lima bean plants in Iran. |
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| Keywords: | common bacterial blight dry beans lima bean |
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