Abstract
sequence was compared via BLAST search at the EzTaxon public database. As a result of sequence comparison, strains with the greatest pairwise similarity to strain ABB-Jeju-1 were E. tasmaniensis Et1/99T (98.9%), E. toletana A37T (98.8%), and E. billingiae LMG 2613T (98.1%). A phylogenetic tree based on 16S rRNA gene sequences also suggested that the strain ABB-Jeju-1 clustered with E. tasmaniensis ET1/99T, which was supported moderately by the bootstrap value (66%). Very recently, Stackbrandt and Ebers stated that a strain with a 16S rRNA gene sequence similarity lower than 99% with known species should be subjected to testing as a novel species, by comparison of 16S rRNA gene sequence similarities and DNA-DNA reassociation values. Accordingly, strain ABB-Jeju-1 could not be regarded as E. tasmaniensis with confidence, and we designated the strain as an E. tasmaniensis-like organism. Conclusions: This is the first case of human infection due to Erwinia tasmaniensis-like organism.
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