Phylogenetic relationship of 16S rRNA among L. hongkongensis HLHK9 , N. meningitidis MC58 , N. gonorrhoeae FA 1090 , C. violaceum ATCC 12472 , E. coli K12 MG1655 and C. jejuni NCTC 11168. The tree was inferred from 16S rRNA data by the neighbor-joining method. Bootstrap values were calculated from 1,000 trees. The scale bar indicates the estimated number of substitutions per 50 bases. Names and accession numbers are given as cited in the GenBank database.