NDLI: Klebsiella michiganensis sp. nov., A New Bacterium Isolated from a Tooth Brush Holder

Content Provider	Springer Nature Link
Author	Saha, Ratul Farrance, Christine E. Verghese, Bindhu Hong, Sunhee Dofrio, Robert S.
Copyright Year	2012
Abstract	Isolate W14T recovered from a household tooth brush holder was found to be gram-negative, a facultative anaerobic, non-motile, capsulated, and a non-endospore-forming straight rod. Based on phylogenetic analysis with 16S rRNA gene sequence, isolate W14T was affiliated to the genus Klebsiella. The closest phylogenetic relative was K. oxytoca with 99 % similarity in the 16S rRNA gene sequence. The major whole-cell fatty acids were C16:0 (31.23 %), C18:1ω6c/C18:1ω7c (21.10 %), and C16:1ω7c/C16:1ω6c (19.05 %). The sequence similarities of isolate W14T based on rpoB, gyrA, and gyrB were 97, 98, and 98 % with K. oxytoca, and 97, 93, and 90 % with K. mobilis (=Enterobacter aerogenes), respectively. The ribotyping pattern showed a 0.46 similarity with K. oxytoca ATCC 13182T and 0.24 with K. mobilis ATCC 13048T. The DNA G+C content of isolate W14T was 54.6 mol%. The DNA–DNA relatedness was 55.7 % with K. oxytoca ATCC 13182T. Using the identification technology of MALDI-TOF mass spectrometry, the top matches for this isolate were K. oxytoca ATCC 13182T (Match Factor Score 1.998) and K. mobilis (Score 1.797). On the basis of phenotypic, biochemical, chemotaxonomic, and molecular studies, isolate W14T could be differentiated from other members of the genus Klebsiella including K. mobilis. Therefore, it is proposed that isolate W14T (=ATCC BAA-2403T=DSM 25444T) should be classified as the type strain of a novel species of the genus Klebsiella, K. michiganensis sp. nov.
Starting Page	72
Ending Page	78
Page Count	7
File Format	PDF
ISSN	03438651
Journal	Current Microbiology
Volume Number	66
Issue Number	1
e-ISSN	14320991
Language	English
Publisher	Springer-Verlag
Publisher Date	2012-10-06
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Microbiology Biotechnology
Content Type	Text
Resource Type	Article
Subject	Medicine Microbiology Applied Microbiology and Biotechnology

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