Polypbasic methods were used to examine the taxonomic positions of three newly identified species. A comparison of the 16S rRNA gene sequences of these organisms with the sequences available for other bacteria revealed that these three species form a tight monophyletic cluster with members of the genus . This cluster is only remotely related to other members of the order . Determinations of the levels of DNA relatedness between species and species (by using a modified hydroxatite method) revealed that all of the species belonging to these two genera are distinct but closely related. On the basis of these data and the results of guanine-plus-cytosine content and phenotypic characterization studies, we propose that the genera and should be unified and that the latter name should be retained. and , new combinations for former species, are created, and the following three new species are described: , and . A taxonomic analysis of species complete the study of all members of the family , and the results of this study support the proposal that the family should be transferred out of the order .


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