title: Novel Campylobacter lari-like bacteria from humans and molluscs: description of Campylobacter peloridis sp. nov., Campylobacter lari subsp. concheus subsp. nov. and Campylobacter lari subsp. lari subsp. nov.
abstract: A polyphasic study was undertaken to clarify the taxonomic position of Campylobacter lari-like strains isolated from shellfish and humans. The diversity within the strain collection was initially screened by means of fluorescent amplified fragment length polymorphism analysis and whole-cell protein electrophoresis, revealing the existence of two clusters distinct from C. lari and other Campylobacter species. The divergence of these clusters was confirmed by phenotypic analysis and by 16S rRNA and hsp60 gene sequence analysis. Phylogenetic analysis identified C. lari, Campylobacter jejuni, Campylobacter coli and Campylobacter insulaenigrae as the closest phylogenetic neighbours of both taxa. DNA-DNA hybridizations revealed that one cluster, comprising 10 strains, represented a novel Campylobacter species, for which the name Campylobacter peloridis sp. nov. is proposed, with 2314BVA(T) (=LMG 23910(T) =CCUG 55787(T)) as the type strain. The second cluster, comprising six strains, represents a novel subspecies within the species C. lari, for which the name Campylobacter lari subsp. concheus subsp. nov. is proposed, with 2897R(T) (=LMG 21009(T) =CCUG 55786(T)) as the type strain. The description of C. lari subsp. concheus has the effect of automatically creating the subspecies Campylobacter lari subsp. lari subsp. nov. (type strain LMG 8846(T)=NCTC 11352(T)).
authors.affiliation: Department of Biochemistry, Physiology and Microbiology, Faculty of Sciences, Ghent University, K. L. Ledeganckstraat 35, B-9000 Ghent, Belgium. Lies.Debruyne@UGent.be
authors.forename: Lies
authors.initials: L
authors.lastname: Debruyne
authors.forename: Stephen L W
authors.initials: SL
authors.lastname: On
authors.forename: Evie
authors.initials: E
authors.lastname: De Brandt
authors.forename: Peter
authors.initials: P
authors.lastname: Vandamme
mesh_terms: D000818:Animals; D001426:Bacterial Proteins / Q000737:chemistry / Q000235:genetics; D015373:Bacterial Typing Techniques; D049872:Bivalvia / Q000382:microbiology*; D002167:Campylobacter / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification / Q000502:physiology; D002169:Campylobacter Infections / Q000382:microbiology*; D044863:Campylobacter lari / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification / Q000502:physiology; D004269:DNA, Bacterial / Q000032:analysis; D004275:DNA, Ribosomal / Q000032:analysis; D003967:Diarrhea / Q000382:microbiology; D020459:Genes, rRNA; D006360:Heat-Shock Proteins / Q000235:genetics; D006801:Humans; D008969:Molecular Sequence Data; D009693:Nucleic Acid Hybridization; D010641:Phenotype; D010802:Phylogeny; D012150:Polymorphism, Restriction Fragment Length; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA; D012758:Shellfish / Q000382:microbiology*; D013045:Species Specificity
chemical_list: D001426:Bacterial Proteins; D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D006360:Heat-Shock Proteins; D012336:RNA, Ribosomal, 16S