Study on the microbial diversity on the grape surface of marketed Summer Black Seedless variety

Using the metagenomic high-throughput sequencing technology,the sequencing analysis of the V3-V4 variable regions of 16S rRNA gene of the grape surface microbe of marketed Summer Black Seedless variety was conducted. The results showed that the the grape surface microbes were highly diverse consortium and had obviously dominant microflora. At the phylum level, the dominant microbes were Firmicutes and Proteobacteria. At the class level, the dominant microbes were α,β,γ-Mycetozoan, Clostridium and Actinomycetes. At the genus level, the dominant microbe was Lactococcus. Furthermore, the pathogenic bacteria Escherichia-Shigella was detected on the grape surface of marketed Summer Black Seedless variety.This study is of reference significance for biological control after fruit picking and inspectation and quarrantine of market fruit.