title: Genomic repertoire of the Woeseiaceae/JTB255, cosmopolitan and abundant core members of microbial communities in marine sediments.
abstract: To date, very little is known about the bacterial core community of marine sediments. Here we study the environmental distribution, abundance and ecogenomics of the gammaproteobacterial Woeseiaceae/JTB255 marine benthic group. A meta-analysis of published work shows that the Woeseiaceae/JTB255 are ubiquitous and consistently rank among the most abundant 16S rRNA gene sequences in diverse marine sediments. They account for up to 22% of bacterial amplicons and 6% of total cell counts in European and Australian coastal sediments. The analysis of a single-cell genome, metagenomic bins and the genome of the next cultured relative Woeseia oceani indicated a broad physiological range, including heterotrophy and facultative autotrophy. All tested (meta)genomes encode a truncated denitrification pathway to nitrous oxide. The broad range of energy-yielding metabolisms possibly explains the ubiquity and high abundance of Woeseiaceae/JTB255 in marine sediments, where they carry out diverse, but yet unknown ecological functions.
authors.affiliation: Department of Molecular Ecology, Max Planck Institute for Marine Microbiology, Bremen, Germany.|Division of Microbial Ecology, Department of Microbiology and Ecosystem Science, University of Vienna, Vienna, Austria.
authors.forename: Marc
authors.initials: M
authors.lastname: Mußmann
authors.affiliation: Division of Microbial Ecology, Department of Microbiology and Ecosystem Science, University of Vienna, Vienna, Austria.
authors.forename: Petra
authors.initials: P
authors.lastname: Pjevac
authors.affiliation: Department of Molecular Ecology, Max Planck Institute for Marine Microbiology, Bremen, Germany.
authors.forename: Karen
authors.initials: K
authors.lastname: Krüger
authors.affiliation: Department of Molecular Ecology, Max Planck Institute for Marine Microbiology, Bremen, Germany.
authors.forename: Stefan
authors.initials: S
authors.lastname: Dyksma
mesh_terms: D001315:Australia; D052818:Autotrophic Processes; D020563:Gammaproteobacteria / Q000145:classification / Q000235:genetics* / Q000302:isolation & purification / Q000378:metabolism; D016680:Genome, Bacterial; D019015:Geologic Sediments / Q000382:microbiology*; D052836:Heterotrophic Processes; D056186:Metagenomics; D009792:Oceans and Seas; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics
chemical_list: D012336:RNA, Ribosomal, 16S