title: Actinomyces massiliensis sp. nov., isolated from a patient blood culture.
abstract: Gram-positive, non-spore-forming rods (strain 4401292(T)) were isolated from a human blood sample. Based on cellular morphology and the results of biochemical tests, this strain was tentatively identified as belonging to an undescribed species of the genus Actinomyces. Phylogenetic analysis based on 16S rRNA gene sequence comparison showed that the bacterium was related closely to Actinomyces gerencseriae (95.1 % 16S rRNA gene sequence similarity), Actinomyces israelii (95.2 %), Actinomyces oricola (95.2 %), Actinomyces ruminicola (93.3 %) and Actinomyces dentalis (91.4 %). The predominant fatty acids were C18 : 1omega9c and C16 : 0. On the basis of phenotypic data and phylogenetic inference, the novel species Actinomyces massiliensis sp. nov. is proposed; the type strain is 4401292(T) (=CSUR P18(T)=CCUG 53522(T)).
authors.affiliation: Laboratoire de Bactériologie-Virologie, Hôpital de la Timone, CNRS UMR 6236, CNRS-IRD, IFR48, 264 rue Saint-Pierre, 13385 Marseille Cedex 05, France.
authors.forename: Aurélie
authors.initials: A
authors.lastname: Renvoise
authors.forename: Didier
authors.initials: D
authors.lastname: Raoult
authors.forename: Véronique
authors.initials: V
authors.lastname: Roux
mesh_terms: D000190:Actinomyces / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification / Q000502:physiology; D000196:Actinomycosis / Q000382:microbiology*; D015373:Bacterial Typing Techniques; D001769:Blood / Q000382:microbiology*; D003470:Culture Media; D004269:DNA, Bacterial / Q000032:analysis; D004275:DNA, Ribosomal / Q000032:analysis; D005227:Fatty Acids / Q000032:analysis; D020459:Genes, rRNA; D006801:Humans; D008969:Molecular Sequence Data; D010641:Phenotype; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA; D013045:Species Specificity
chemical_list: D003470:Culture Media; D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D005227:Fatty Acids; D012336:RNA, Ribosomal, 16S