Two bacterial strains, one isolated from the blood of a dog with valvular endocarditis and one isolated from the blood of a healthy dog, were similar to species, as determined by a number of phenotypic criteria, including growth characteristics, biochemical reactions, and cell wall fatty acid composition. The results of 16S rRNA gene sequence similarity studies confirmed that these strains are closely related and belong in the genus and that is their closest relative (the 16S rRNA of isolate 93-C01 [T = type strain] was 99.37% identical to the 16S rRNA of the type strain of , the 16S rRNA of isolate G7464 was 99.61% identical to the 16S rRNA of the type strain, and the 16S rRNAs of the dog isolates were 99.77% identical to each other). The 16S rRNAs of both strains contained a 12-base insertion that was not present in the 16S rRNA of the type strain of any species. DNA relatedness tests revealed that these strains were related at the species level to the type strain of . They were, however, significantly more closely related to each other than to . On the basis of their unique 16S rRNA sequence insertion, their preferentially high level of relatedness, and their similar origins (dogs), we believe that strains 93-C01 and G7464 should be placed in a separate subspecies of , for which we propose the name subsp. subsp. nov. The type strain of subsp. is strain 93-C01 (= ATCC 51672). The description of is emended to accommodate the new subspecies, and subsp. is described.


Article metrics loading...

Loading full text...

Full text loading...


Most cited this month Most Cited RSS feed

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error