A review of prokaryotic populations and processes in sub-seafloor sediments, including biosphere:geosphere interactions
- R. Parkes, B. Cragg, E. Roussel, G. Webster, A. Weightman, H. Sass
- Environmental Science
- 1 June 2014
Phylogeny and physiology of candidate phylum ‘Atribacteria’ (OP9/JS1) inferred from cultivation-independent genomics
- M. Nobu, J. Dodsworth, B. Hedlund
- BiologyThe ISME Journal
- 19 June 2015
C cultivation-independent genomic approaches were used to provide a first comprehensive view of the phylogeny, conserved genomic features and metabolic potential of members of this ubiquitous candidate phylum, and confirmed the monophyly of the ‘Atribacteria’ inclusive of OP9 and JS1.
Distributions of Microbial Activities in Deep Subseafloor Sediments
- S. D’Hondt, B. Jørgensen, J. Acosta
- Environmental ScienceScience
- 24 December 2004
Diverse microbial communities and numerous energy-yielding activities occur in deeply buried sediments of the eastern Pacific Ocean and these sedimentary communities may supply dissolved electron donors and nutrients to the underlying crustal biosphere.
Monoalkylether phospholipids in the sulfate-reducing bacteria Desulfosarcina variabilis and Desulforhabdus amnigenus
- H. Rütters, H. Sass, H. Cypionka, J. Rullkötter
- ChemistryArchives of Microbiology
- 19 September 2001
Cellular lipid compositions of two mesophilic sulfate-reducing bacteria were analyzed by high performance liquid chromatography-mass spectrometry and alkylether-containing phospholipids were detected which had previously only been found in significant amounts in deeply branching hyperthermophilic bacteria and archaea.
Deep biosphere-related bacteria within the subsurface of tidal flat sediments.
- R. Wilms, B. Köpke, H. Sass, T. Chang, H. Cypionka, B. Engelen
- Environmental ScienceEnvironmental Microbiology
- 1 April 2006
Investigation of sediment columns of tidal flats revealed that different compartments of the sediment columns were characterized by specific microbial communities, which indicates the presence of a typical deep-biosphere microbial community in relatively young subsurface sediments.
Microbial Diversity in Coastal Subsurface Sediments: a Cultivation Approach Using Various Electron Acceptors and Substrate Gradients
- B. Köpke, R. Wilms, B. Engelen, H. Cypionka, H. Sass
- Environmental ScienceApplied and Environmental Microbiology
- 1 December 2005
The majority of the isolates grew well under anoxic conditions, by fermentation, or by anaerobic respiration with nitrate, sulfate, ferrihydrite, or manganese oxides as electron acceptors.
Methane and sulfate profiles within the subsurface of a tidal flat are reflected by the distribution of sulfate-reducing bacteria and methanogenic archaea.
- R. Wilms, H. Sass, B. Köpke, H. Cypionka, B. Engelen
- Environmental ScienceFEMS Microbiology Ecology
- 1 March 2007
A quantitative PCR approach was applied using primers targeting the domains of Bacteria and Archaea, and key functional genes for sulfate reduction (dsrA) and methanogenesis (mcrA) were targeted, suggesting sulfate-dependent anaerobic oxidation of methane.
Specific Bacterial, Archaeal, and Eukaryotic Communities in Tidal-Flat Sediments along a Vertical Profile of Several Meters
- R. Wilms, H. Sass, B. Köpke, J. Köster, H. Cypionka, B. Engelen
- Environmental ScienceApplied and Environmental Microbiology
- 1 April 2006
The phylogenetic distance to other archaeal sequences indicates that these organisms represent a new phylogenetic group, proposed as “tidal-flat cluster 1.” Eukarya were still detectable at 360 cm, even though their diversity decreased with depth.
Phospholipid analysis as a tool to study complex microbial communities in marine sediments.
- H. Rütters, H. Sass, H. Cypionka, J. Rullkötter
- BiologyJournal of Microbiological Methods
- 1 February 2002
Phylogenetic and Physiological Diversity of Cultured Deep-Biosphere Bacteria from Equatorial Pacific Ocean and Peru Margin Sediments
- Anja Batzke, B. Engelen, H. Sass, H. Cypionka
- Biology
- 23 July 2007
During ODP Leg 201 microbial communities in Eastern Equatorial Pacific Ocean and Peru Margin sediments, the outcome of the contamination tests, the isolation of close relatives of already known subsurface bacteria, the repeated finding of the same phylotype from different sites and the level of diversity present in the culture collection strongly suggest that indigenous deep-biosphere bacteria had been isolated.
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