Teichococcus ludipueritiae gen. nov. sp. nov., and Muricoccus roseus gen. nov. sp. nov. representing two new genera of the alpha-1 subclass of the Proteobacteria.
Two bacterial isolates (170/96T and 173/96T) were recovered from the indoor building materials of a children's day care center. Phylogenetic analyses using the 16S rRNA gene sequences of both isolates indicated they both represent new lineages in the alpha-1-subclass of the Proteobacteria, with the highest sequence similarities of 93.7% and 93.6%, respectively to the type strain of Paracraurococcus ruber. When directly compared both isolates showed a 93.4% sequence similarity of their 16S rRNAs. The major respiratory quinone in both strains was a ubiquinone with 10 isoprenoid units and the major whole cell fatty acid of both strains was 18:1 omega7c. Both isolates also contained 18:1 2-OH and other fatty acids typical for members of the alpha-1 subclass of the Proteobacteria. Both strains were heterotrophic and strictly aerobic and formed slightly red-colored colonies on tryptone soy agar. Bacteriochlorophyll a could not be detected by direct spectrophotometric analyses of aerobically grown cells. On the basis of the phylogenetic analyses, physiological and biochemical characteristics, we propose that strains 170/96T and 173/96T represent two new genera and new species of the alpha-1 subclass of the Proteobacteria for which we propose the names Teichococcus ludipueritiae gen. nov. sp. nov., and Muricoccus roseus gen. nov. sp. nov., respectively.
Institut für Angewandte Mikrobiologie, Justus-Liebig-Universität Giessen, Giessen, Germany. peter.kaempfer@agrar.uni-giessen.de
Peter
P
Kämpfer
Maria A
MA
Andersson
Udo
U
Jäckel
Mirja
M
Salkinoja-Salonen
D020561:Alphaproteobacteria / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification / Q000648:ultrastructure; D001482:Base Composition; D001483:Base Sequence; D003470:Culture Media / Q000737:chemistry; D005227:Fatty Acids / Q000032:analysis; D008969:Molecular Sequence Data; D010802:Phylogeny; D010860:Pigments, Biological / Q000032:analysis; D011809:Quinones / Q000032:analysis; D012336:RNA, Ribosomal, 16S / Q000032:analysis
D003470:Culture Media; D005227:Fatty Acids; D010860:Pigments, Biological; D011809:Quinones; D012336:RNA, Ribosomal, 16S