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Population Structure and Phylogenetic Characterization of Marine Benthic Archaea in Deep-Sea Sediments
Investigation of deep-sea sediments collected from several stations in the Atlantic Ocean revealed the presence of a complex archaeal population structure, whose members could be grouped into discrete phylogenetic lineages within the two kingdoms, Crenarchaeota and EuryarchAEota. Expand
Contribution of Aerobic Photoheterotrophic Bacteria to the Carbon Cycle in the Ocean
The vertical distribution of bacteriochlorophylla, the numbers of infrared fluorescent cells, and the variable fluorescence signal at 880 nanometers wavelength, all indicate that photosyntheticallyExpand
Fingerprinting Microbial Assemblages from the Oxic/Anoxic Chemocline of the Black Sea
Biomass samples from the Black Sea collected in 1988 were analyzed for SSU genes from Bacteria and Archaea after 10 years of storage at −80°C and direct fingerprinting by terminal restriction fragment length polymorphism (T-RFLP) analyses were used to assess the microbial community. Expand
Isolation and characterization of Erythrobacter sp. strains from the upper ocean
Seven strains of marine aerobic anoxygenic phototrophs belonging to the genus Erythrobacter were isolated and required an organic carbon substrate for growth; however, they are able to supplement a significant fraction of their metabolic requirements with photosynthetically derived energy. Expand
Recovery and phylogenetic analysis of archaeal rRNA sequences from continental shelf sediments.
This is the first report showing the existence of Archaea, unrelated to methanogens, specifically associated with low-temperature anoxic marine sediments, and indicates that the benthic Archaea belong to a new group, divergent from the marine low-Temperature planktonic archaea. Expand
Caminibacter mediatlanticus sp. nov., a thermophilic, chemolithoautotrophic, nitrate-ammonifying bacterium isolated from a deep-sea hydrothermal vent on the Mid-Atlantic Ridge.
It is proposed that the organism isolated from the walls of an active deep-sea hydrothermal vent chimney on the Mid-Atlantic Ridge represents a novel species within the genus Caminibacter, CaminIBacter mediatlanticus sp. Expand
Autotrophic CO2 fixation via the reductive tricarboxylic acid cycle in different lineages within the phylum Aquificae: evidence for two ways of citrate cleavage.
Findings substantiate the hypothesis that autotrophic carbon fixation through the reductive TCA cycle is widespread and contributes significantly to biomass production particularly in hydrothermal habitats. Expand
Thermovibrio ammonificans sp. nov., a thermophilic, chemolithotrophic, nitrate-ammonifying bacterium from deep-sea hydrothermal vents.
It is proposed that the organisms isolated from the walls of an active deep-sea hydrothermal vent chimney on the East Pacific Rise represents a novel species within the newly described genus Thermovibrio, and formed a deep branch within the phylum Aquificae. Expand
Vertical distribution and diversity of bacteria and archaea in sulfide and methane-rich cold seep sediments located at the base of the Florida Escarpment
The data suggest that the community structure and diversity of microorganisms can shift greatly within small vertical distances, possibly in response to changes in the physical and chemical conditions. Expand