title: Friedmanniella antarctica gen. nov., sp. nov., an LL-diaminopimelic acid-containing actinomycete from Antarctic sandstone.
abstract: A gram-positive, aerobic, slowly growing actinomycete was isolated from antarctic sandstone. Packets of spherical cells of this organism form clusters. The diagnostic diamino acid of the peptidoglycan is LL-diaminopimelic acid with glycine in position 1 of the peptide subunit. The major menaquinone is MK-9(H4), and the main cellular fatty acids are 12- and 13-methyltetradecanoic acids. Only a few organic compounds are metabolized. The DNA base composition is 73 mol% G + C. A 16S ribosomal DNA sequence comparison showed that this isolate is a phylogenetic neighbor of the propionibacteria and related taxa. Its closest relative is Microlunatus phosphovorus. Morphological, physiological, and genotypic characteristics support the description of a new genus and new species, Friedmanniella antarctica gen. nov., sp. nov. The type strain is strain AA-1042 (= DSM 11053).
authors.affiliation: DSMZ-German Collection of Microorganisms and Cell Cultures GmbH, Jena, Germany. Pschuman@leutra.imb-jena.de
authors.forename: P
authors.initials: P
authors.lastname: Schumann
authors.forename: H
authors.initials: H
authors.lastname: Prauser
authors.forename: F A
authors.initials: FA
authors.lastname: Rainey
authors.forename: E
authors.initials: E
authors.lastname: Stackebrandt
authors.forename: P
authors.initials: P
authors.lastname: Hirsch
mesh_terms: D000192:Actinomycetales / Q000145:classification / Q000235:genetics / Q000378:metabolism*; D000864:Antarctic Regions; D015373:Bacterial Typing Techniques; D004269:DNA, Bacterial / Q000235:genetics; D004275:DNA, Ribosomal / Q000235:genetics; D003960:Diaminopimelic Acid / Q000378:metabolism*; D004783:Environmental Microbiology; D008969:Molecular Sequence Data; D010802:Phylogeny; D012329:RNA, Bacterial / Q000235:genetics; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D009626:Terminology as Topic
chemical_list: D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S; D003960:Diaminopimelic Acid