Abstract
The knowledge of the ecological niches of phytopathogenic bacteria is essential for the efficient management of plant bacteriosis. The common bean (Phaseolus vulgaris L.) is the main legumine for human consumption worldwide, because it is an important food for many development countries. The common bacterial blight, caused by Xanthomonas axonopodis pv. phaseoli (Xap), is one of the main b…