Two new Rahnella genomospecies that cannot be phenotypically differentiated from Rahnella aquatilis.
Fifty-one Rahnella aquatilis and R. aquatilis-like strains from water, snails and human sources were characterized by routine biochemical tests, carbon source utilization tests, DNA relatedness (hydroxyapatite method) and 16S rRNA sequencing. The results of the genetic methods indicated that the strains comprised three closely related species within the genus Rahnella. It was not possible to differentiate R. aquatilis from the two newly recognized species. The new species were therefore given the vernacular names Rahnella genomospecies 2 and Rahnella genomospecies 3.
Brenner
D J
DJ
Meningitis and Special Pathogens Branch, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA. djb3@cdc.gov
Müller
H E
HE
Steigerwalt
A G
AG
Whitney
A M
AM
O'Hara
C M
CM
Kämpfer
P
P
D000818:Animals; D001431:Bacteriological Techniques; D002244:Carbon / Q000378:metabolism; D004269:DNA, Bacterial / Q000032:analysis; D004754:Enterobacter / Q000145:classification* / Q000235:genetics* / Q000378:metabolism; D006801:Humans; D006868:Hydrolysis; D008969:Molecular Sequence Data; D010641:Phenotype; D012329:RNA, Bacterial / Q000032:analysis; D012336:RNA, Ribosomal, 16S / Q000032:analysis; D017423:Sequence Analysis, RNA; D012908:Snails / Q000382:microbiology*; D014871:Water Microbiology
D004269:DNA, Bacterial; D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S; D002244:Carbon