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Bavariicoccus seileri gen. nov., sp. nov., isolated from the surface and smear water of German red smear soft cheese

Verena S. J. Schmidt¹, Ralf Mayr¹, Mareike Wenning¹, Jana Glöckner^2,, Hans-Jürgen Busse² and Siegfried Scherer^1,3

¹ Abteilung für Mikrobiologie, ZIEL, Technische Universität München, D-85354 Freising, Germany
² Institut für Bakteriologie, Mykologie und Hygiene, Veterinärmedizinische Universität, A-1210 Wien, Austria
³ Lehrstuhl für Mikrobielle Ökologie, Department für Grundlagen der Biowissenschaften, WZW, Technische Universität München, D-85350 Freising, Germany

Correspondence
Siegfried Scherer
Siegfried.Scherer{at}wzw.tum.de

The phylogenetic position and physiological characters of six hitherto-unknown lactic acid bacterial isolates, which form part of the surface microbiota of German red smear soft cheese, are reported. The coccoid cells are aerotolerant, Gram-positive, catalase-negative and non-motile. The cell-wall peptidoglycan contains alanine, glutamic acid, lysine and aspartic acid and is of the A4 type (L-Lys–D-Asp). The sequences of the 16S rRNA, groEL and rpoB genes of the six isolates are identical and reveal that these isolates represent an independent lineage within the radiation of the family Enterococcaceae in the phylum Firmicutes. Their closest phylogenetic neighbour is the lactic acid bacterium Atopobacter phocae M1590/94/2^T, with which they share 94.9 % 16S rRNA gene sequence similarity; representatives of other genera such as Granulicatella, Carnobacterium and Trichococcus are more distantly related. DNA–DNA hybridization studies reveal that the six isolates are members of a single species, and this is confirmed by similarities in biochemical characteristics. The six isolates were assigned four different groups by Fourier-transform infrared and randomly amplified polymorphic DNA typing. Therefore, it is formally proposed that these isolates should be classified in a single novel species of a novel genus and be named Bavariicoccus seileri gen. nov., sp. nov. The type strain of Bavariicoccus seileri is WCC 4188^T (=DSM 19936^T =CCUG 55508^T).

Present address: Max Planck Institute for Terrestrial Microbiology, Karl-von-Frisch-Straße, D-35043 Marburg, Germany.

The GenBank/EMBL/DDBJ accession numbers for the 16S rRNA gene and groEL gene sequences of strain WCC 4188^T are FM177901 and FM177902, respectively.

Tables showing cellular fatty acid compositions and DNA–DNA relatedness values and figures showing FT-IR-based similarity dendrograms and RAPD fingerprints for the novel strains are available as supplementary material with the online version of this paper.