Differentiation of wine lactic acid bacteria species based on RFLP analysis of a partial sequence of rpoB gene

PCR-RFLP analysis of rpoB sequences were used to identify lactic acid bacteria (LAB) species commonly isolated from wine. Strains of seven cocci and 12 lactobacilli species could be identified after single digestion with AciI for the cocci and two or three digestions (AciI, HinfI and MseI) for the rods and preceded by colonies isolation on solid selective medium and microscope observation to distinguish cocci and rods cells.