title: Paenalcaligenes hominis gen. nov., sp. nov., a new member of the family Alcaligenaceae.
abstract: A beige-pigmented bacterium (strain CCUG 53761A(T)) was isolated from human blood from an 85-year-old man in Göteborg, Sweden. Comparative analysis of 16S rRNA gene sequences showed that this bacterium displayed <95 % similarity to all described species of the genera of the family Alcaligenaceae. It grouped within the radiation of the genus Alcaligenes, but showed only 93.0-94.8 % similarity to type strains of members of this genus (Alcaligenes faecalis subsp. parafaecalis, 94.8 %; Alcaligenes faecalis subsp. faecalis, 94.2 %; Alcaligenes faecalis subsp. phenolicus, 93.4 %). This discrimination was supported by chemotaxonomic differences. The polyamine pattern consisted of the predominant compound putrescine, moderate amounts of spermidine and minor to trace amounts of spermine and cadaverine; 2-hydroxyputrescine was not detectable. The quinone system was ubiquinone Q-8 with minor amounts of Q-7. The polar lipid profile was composed of the major lipids diphosphatidylglycerol and phosphatidylethanolamine and moderate amounts of phosphatidylglycerol and an unknown phospholipid; minor lipids were also detected. The fatty acid profile, with large amounts of C(16 : 0) and C(17 : 0) cyclo and the absence of C(12 : 0) 2-OH as hydroxylated fatty acid, also differed significantly from those reported for Alcaligenes species. On the basis of these data, it is proposed that strain CCUG 53761A(T) represents a novel genus and species, for which the name Paenalcaligenes hominis gen. nov., sp. nov. is proposed. The type strain of Paenalcaligenes hominis is CCUG 53761A(T) =CCM 7698(T).
authors.affiliation: Institut für Angewandte Mikrobiologie, Justus Liebig Universität, D-35392 Giessen, Germany.
authors.forename: P
authors.initials: P
authors.lastname: Kämpfer
authors.affiliation: Culture Collection University Göteborg, Department of Clinical Bacteriology, S-41346 Göteborg, Sweden.
authors.forename: E
authors.initials: E
authors.lastname: Falsen
authors.affiliation: Institut für Bakteriologie, Mykologie und Hygiene, Veterinärmedizinische Universität Wien, Veterinärplatz 1, A-1210 Wien, Austria.
authors.forename: S
authors.initials: S
authors.lastname: Langer
authors.affiliation: Institut für Angewandte Mikrobiologie, Justus Liebig Universität, D-35392 Giessen, Germany.
authors.forename: N
authors.initials: N
authors.lastname: Lodders
authors.affiliation: Institut für Bakteriologie, Mykologie und Hygiene, Veterinärmedizinische Universität Wien, Veterinärplatz 1, A-1210 Wien, Austria.
authors.forename: H-J
authors.initials: HJ
authors.lastname: Busse
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D042401:Alcaligenaceae / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification; D001483:Base Sequence; D005227:Fatty Acids / Q000032:analysis; D006801:Humans; D008297:Male; D008969:Molecular Sequence Data; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics
chemical_list: D005227:Fatty Acids; D012336:RNA, Ribosomal, 16S