title: Lactobacillus cypricasei Lawson et al. 2001 is a later heterotypic synonym of Lactobacillus acidipiscis Tanasupawat et al. 2000.
abstract: The applicability of a multilocus sequence analysis (MLSA)-based identification system for lactobacilli was evaluated. Two housekeeping genes that code for the phenylalanyl-tRNA synthase alpha-subunit (pheS) and RNA polymerase alpha-subunit (rpoA) were sequenced and analysed for members of the Lactobacillus salivarius species group. The type strains of Lactobacillus acidipiscis and Lactobacillus cypricasei were investigated further using a third gene that encodes the alpha-subunit of ATP synthase (atpA). The MLSA data revealed close relatedness between L. acidipiscis and L. cypricasei, with 99.8-100 % pheS, rpoA and atpA gene sequence similarities. Comparison of the 16S rRNA gene sequences of the type strains of the two species confirmed the close relatedness (99.8 % gene sequence similarity) between the two taxa. Similar phenotypes and high DNA-DNA binding values in the range of 84 to 97.5 % confirmed that L. acidipiscis and L. cypricasei are synonymous species. On the basis of the present study, it is proposed that Lactobacillus cypricasei is a later heterotypic synonym of Lactobacillus acidipiscis.
authors.affiliation: BCCMTM/LMG Bacteria Collection, Ghent University, K.L. Ledeganckstraat 35, Ghent 9000, Belgium.|Laboratory of Microbiology, Ghent University, K.L. Ledeganckstraat 35, Ghent 9000, Belgium.
authors.forename: Sabri M
authors.initials: SM
authors.lastname: Naser
authors.affiliation: BCCMTM/LMG Bacteria Collection, Ghent University, K.L. Ledeganckstraat 35, Ghent 9000, Belgium.
authors.forename: Marc
authors.initials: M
authors.lastname: Vancanneyt
authors.affiliation: BCCMTM/LMG Bacteria Collection, Ghent University, K.L. Ledeganckstraat 35, Ghent 9000, Belgium.
authors.forename: Bart
authors.initials: B
authors.lastname: Hoste
authors.affiliation: BCCMTM/LMG Bacteria Collection, Ghent University, K.L. Ledeganckstraat 35, Ghent 9000, Belgium.
authors.forename: Cindy
authors.initials: C
authors.lastname: Snauwaert
authors.affiliation: BCCMTM/LMG Bacteria Collection, Ghent University, K.L. Ledeganckstraat 35, Ghent 9000, Belgium.|Laboratory of Microbiology, Ghent University, K.L. Ledeganckstraat 35, Ghent 9000, Belgium.
authors.forename: Jean
authors.initials: J
authors.lastname: Swings
mesh_terms: D001426:Bacterial Proteins / Q000235:genetics; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D012321:DNA-Directed RNA Polymerases / Q000235:genetics; D007778:Lactobacillus / Q000145:classification* / Q000235:genetics; D025261:Mitochondrial Proton-Translocating ATPases / Q000235:genetics; D008969:Molecular Sequence Data; D009693:Nucleic Acid Hybridization; D010652:Phenylalanine-tRNA Ligase / Q000235:genetics; D010802:Phylogeny; D021122:Protein Subunits / Q000235:genetics; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA; D012689:Sequence Homology, Nucleic Acid
chemical_list: D001426:Bacterial Proteins; D004269:DNA, Bacterial; D021122:Protein Subunits; D012336:RNA, Ribosomal, 16S; D012321:DNA-Directed RNA Polymerases; C113275:RNA polymerase alpha subunit; D025261:Mitochondrial Proton-Translocating ATPases; D010652:Phenylalanine-tRNA Ligase