Premium
Sediment‐associated microdiversity within the Marine Group I Crenarchaeota
Author(s) -
Durbin Alan M.,
Teske Andreas
Publication year - 2010
Publication title -
environmental microbiology reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.229
H-Index - 69
ISSN - 1758-2229
DOI - 10.1111/j.1758-2229.2010.00163.x
Subject(s) - crenarchaeota , sediment , abyssal plain , abyssal zone , oceanography , anoxic waters , total organic carbon , continental shelf , marine habitats , geology , ecology , environmental science , archaea , habitat , biology , paleontology , bacteria
Summary Although oligotrophic, abyssal marine sediments cover most of the sea bottom, previous investigations of microbial diversity have primarily focused on organic‐rich, anoxic sediments of continental margins. In contrast, abyssal open‐ocean sediments are oxidized and contain limiting organic substrate concentrations. This study examines the archaeal diversity of oligotrophic, oxic and nitrate‐reducing marine sediments and oxic bottom water in the South Pacific Gyre. 16S rDNA clone library analysis identified phylogenetically distinct lineages of the Marine Group I (MG‐I) Crenarchaeota in oxidized sediment that are different from those in bottom water. Thus, the sediment habitat selects for different MG‐I lineages, within short vertical distances of a few centimetres.