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Phaseolus lunatus , a New Host of Xanthomonas axonopodis pv . phaseoli in Iran
Author(s) -
Osdaghi Ebrahim,
Zademohamad Ali Akbar
Publication year - 2016
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/jph.12379
Subject(s) - phaseolus , biology , bacterial blight , host (biology) , pathogenicity , xanthomonas , lima beans , crop , pathogen , spots , blight , botany , horticulture , bacteria , agronomy , microbiology and biotechnology , ecology , genetics , gene , biochemistry
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.