It is shown HR4 was most closed to Delftia tsuruhatensis (ATCC BAA-554T) with 16S rDNA similarity 99%. However, comparisons of characteristics with other known species of the genus Delftia suggested that strain HR4 was a novel dizotrophic strain.

• 结果表明HR4与Delftia tsuruhatensis(ATCC BAA-554~T)的相似性达到99%25，是Delftia tsuruhatensis的一个新菌株。