Abstract: In the present study, four pathogenic strains named as 091, 089, 086 and 071, respectively were isolated from infected black amber plum, and one pathogenic strain named as 072 from infected Bayuecui peach during postharvest storage. Morphological observation and rDNA ITS analysis indicated that all five pathogenic strains were Monilinia fructicola. The result obtained also revealed that strains 091 and 089 had a close phylogenetic relationship with Monilinia fructicola (FJ515894). Metabolic fingerprinting suggested that these five strains had the same ability to metabolize 56 carbon sources including 51 optimal ones and 5 unutilized ones. Monilinia fructicola 091 and 089 shared the most similar metabolic fingerprints, whereas Monilinia fructicola 086, 071 and 072 were the most similar. These studies demonstrated that both rDNA ITS analysis and carbon metabolic fingerprinting allows distinguishing among the Monilinia fructicola strains isolated and may be considered as being comparable.

Key words: peach fruit, plum fruit, Monilinia fructicola, rDNA ITS sequence analysis, carbon metabolic fingerprinting