title: Micropruina glycogenica gen. nov., sp. nov., a new Gram-positive glycogen-accumulating bacterium isolated from activated sludge.
abstract: A new Gram-positive non-spore-forming bacterium, strain Lg2T, was isolated from an activated sludge reactor showing enhanced biological phosphorus removal activity. The new isolate was a slowly growing organism and was capable of accumulating large amounts of intracellular glycogen from substrate taken up. Both oxidase and catalase were produced. The new isolate contained meso-diaminopimelic acid (DAP) in the cell wall. Complex fatty acid patterns with iso-C14:0, anteiso-C15:0, C16:0, iso-C16:0 and four other minor saturated or unsaturated straight-chain fatty acids were detected. The isolate contained a high genomic G+C content (70.5 mol%). Phylogenetic analysis based on the 16S rRNA gene sequence placed the isolate in the high G+C Gram-positive group with Microlunatus phosphovorus and Friedmanniella antarctica as the closest relatives (sequence similarities are 93 and 92 %, respectively). These three organisms shared common features in morphology, but strain Lg2T could be differentiated from the other species by its peptidoglycan type (meso-DAP), fatty acid composition, carbon source utilization profile and G+C content. On the basis of these findings, it is proposed that a new genus and species, Micropruina glycogenica, should be created for the new isolate; the type strain is strain Lg2T (= JCM 10248T).
authors.forename: T
authors.initials: T
authors.lastname: Shintani
authors.forename: W T
authors.initials: WT
authors.lastname: Liu
authors.forename: S
authors.initials: S
authors.lastname: Hanada
authors.forename: Y
authors.initials: Y
authors.lastname: Kamagata
authors.forename: S
authors.initials: S
authors.lastname: Miyaoka
authors.forename: T
authors.initials: T
authors.lastname: Suzuki
authors.forename: K
authors.initials: K
authors.lastname: Nakamura
mesh_terms: D001482:Base Composition; D003470:Culture Media; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D020459:Genes, rRNA; D006003:Glycogen / Q000378:metabolism; D006095:Gram-Positive Cocci / Q000737:chemistry / Q000145:classification* / Q000302:isolation & purification / Q000502:physiology; D008969:Molecular Sequence Data; D010641:Phenotype; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA; D012722:Sewage / Q000382:microbiology*
chemical_list: D003470:Culture Media; D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D012336:RNA, Ribosomal, 16S; D012722:Sewage; D006003:Glycogen