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Updated: Aug 20, 2026

Establishment of Microbial Eukaryotic Enrichment Cultures from a Chemically Stratified Antarctic Lake and Assessment of Carbon Fixation Potential
Published on: April 20, 2012
Psychrophilic prokaryote structural-functional relationships, biogeography and evolution within marine sediment
1Australian Food Safety Centre of Excellence, University of Tasmania, Private Bag 54, Hobart, Tasmania, 7001, Australia. john.bowman@utas.edu.au
Abstract:
Prokaryote diversity has been found to be surprisingly high in cold marine sediments with numerous clades detected spread throughout many phyla. Marine benthic sediment clades are largely ecotypically distinct and autochthonous. Since almost all marine sediment prokaryotic taxa have yet to be cultivated, functionality is currently overwhelmingly cryptic for most benthic prokaryotic taxa except those falling into specific lineages for which there is cultivation or detailed biogeochemical data. Multivariate statistical comparisons of 16S rRNA gene sequence and denaturing gradient gel electrophoresis (DGGE) data show distinct distribution patterns of prokaryotic communities in sediment layers. By comparison geographical differences and differences related to the physical texture and organic content seem to result in generally smaller differences.
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