Your browser doesn't support javascript.
loading
The metabolic potential of the single cell genomes obtained from the Challenger Deep, Mariana Trench within the candidate superphylum Parcubacteria (OD1).
León-Zayas, Rosa; Peoples, Logan; Biddle, Jennifer F; Podell, Sheila; Novotny, Mark; Cameron, James; Lasken, Roger S; Bartlett, Douglas H.
Afiliación
  • León-Zayas R; Marine Biology Research Division, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, 92093, USA.
  • Peoples L; School of Marine Science and Policy, University of Delaware, Lewes, DE, 19958, USA.
  • Biddle JF; Marine Biology Research Division, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, 92093, USA.
  • Podell S; School of Marine Science and Policy, University of Delaware, Lewes, DE, 19958, USA.
  • Novotny M; Marine Biology Research Division, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, 92093, USA.
  • Cameron J; Microbial and Environmental Genomics, J. Craig Venter Institute, San Diego, CA, 92121, USA.
  • Lasken RS; Earthship Productions, 3806 Cross Creek Rd. Suite D, Malibu, CA, 90265-4975, USA.
  • Bartlett DH; Microbial and Environmental Genomics, J. Craig Venter Institute, San Diego, CA, 92121, USA.
Environ Microbiol ; 19(7): 2769-2784, 2017 07.
Article en En | MEDLINE | ID: mdl-28474498
Candidate phyla (CP) are broad phylogenetic clusters of organisms that lack cultured representatives. Included in this fraction is the candidate Parcubacteria superphylum. Specific characteristics that have been ascribed to the Parcubacteria include reduced genome size, limited metabolic potential and exclusive reliance on fermentation for energy acquisition. The study of new environmental niches, such as the marine versus terrestrial subsurface, often expands the understanding of the genetic potential of taxonomic groups. For this reason, we analyzed 12 Parcubacteria single amplified genomes (SAGs) from sediment samples collected within the Challenger Deep of the Mariana Trench, obtained during the Deepsea Challenge (DSC) Expedition. Many of these SAGs are closely related to environmental sequences obtained from deep-sea environments based on 16S rRNA gene similarity and BLAST matches to predicted proteins. DSC SAGs encode features not previously identified in Parcubacteria obtained from other habitats. These include adaptation to oxidative stress, polysaccharide modification and genes associated with respiratory nitrate reduction. The DSC SAGs are also distinguished by relative greater abundance of genes for nucleotide and amino acid biosynthesis, repair of alkylated DNA and the synthesis of mechanosensitive ion channels. These results present an expanded view of the Parcubacteria, among members residing in an ultra-deep hadal environment.
Asunto(s)
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Bacterias / Genoma Bacteriano / Sedimentos Geológicos / Análisis de la Célula Individual Tipo de estudio: Prognostic_studies Idioma: En Revista: Environ Microbiol Asunto de la revista: MICROBIOLOGIA / SAUDE AMBIENTAL Año: 2017 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Bacterias / Genoma Bacteriano / Sedimentos Geológicos / Análisis de la Célula Individual Tipo de estudio: Prognostic_studies Idioma: En Revista: Environ Microbiol Asunto de la revista: MICROBIOLOGIA / SAUDE AMBIENTAL Año: 2017 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido