In recent years, bean common bacterial blight (CBB) caused by Xanthomonas axonopodis pv. phaseoli (Xap) has caused serious yield losses in several countries. CBB is considered mainly a foliar disease in which symptoms initially appear as small water-soaked spots that then enlarge and become necrotic and usually bordered by a chlorotic zone. Xap epiphytic population community has a critical role in the development of the disease and subsequent epidemics. The epiphytic population of Xap in the field has two major parts; solitary cells (potentially planktonic) and biofilms which are sources for providing and refreshing the solitary cell components. Irrigation type has a significant effect on epiphytic population of Xap. The mean epiphytic population size in the field with an overhead sprinkler irrigation system is significantly higher than populations under furrow irrigation. A significant positive correlation between the epiphytic population size of Xap and disease severity has been reported in both the overhead irrigated (r=0.64) and the furrow irrigated (r= 0.44) fields. © 2013 Akhavan et al.; licensee Springer.
CITATION STYLE
Akhavan, A., Bahar, M., Askarian, H., Lak, M. R., Nazemi, A., & Zamani, Z. (2013). Bean common bacterial blight: Pathogen epiphytic life and effect of irrigation practices. SpringerPlus, 2(1), 1–9. https://doi.org/10.1186/2193-1801-2-41
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