Identification and pathogenicity of pathogens causing postharvest decay in cherry fruits
In order to effectively control cherry postharvest decay and reduce fruit loss,this paper observed four bat-ches of fresh and healthy sweet cherries from Shandong Province and the United States that were stored at room tempera-ture.Pathogens were isolated from the newly formed lesions and decaying cherry fruits,and the isolates were identified by molecular biology.Healthy cherry fruits were inoculated for pathogenicity testing.The results showed that a total of 12 fungal and 16 bacterial representative isolates were obtained from the cherries that began to rot during the storage peri-od of the 4 batches.Among them,10 fungal isolates were pathogenic,involving six species,identified as Alternaria sp.,Fusarium sp.,Epicoccum sorghium,Dothiorella viticola,Nothophoma quercina,and Paraconiothyrium brasiliense,respectively.Eight bacterial isolates had weak pathogenicity,involving six species,identified as Pantoea sp.,Bacillus sp.,Tatumella sp.,Gluconobacter sp.,Phaseolibacter sp.,and Sphingomonas sp.,respectively.The types of fungi and bacteria isolated from postharvest rotting cherries from different regions were different,and their pathogenicity was also varied.The above results provide a reference for further research on the pathogens of postharvest decay and the de-velopment of postharvest cherry preservation technology.
cherrypostharvest decaypathogenisolation and identificationpathogenicity
国家科技期刊平台
NSTL
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