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Phylogenetic relationships ofThiomicrospira species and their identification in deep-sea hydrothermal vent samples by denaturing gradient gel electrophoresis of 16S rDNA fragments
DGGE analysis of PCR-amplified 16S rDNA fragments was used to explore the genetic diversity of hydrothermal vent microbial communities, specifically to determine the importance of sulfur-oxidizing bacteria therein, and identified three ‘phylotypes’ which represented a newThiomicrospira species, phylogenetically in an intermediate position between Tms.
Stable isotope studies of the carbon, nitrogen and sulfur cycles in the Black Sea and the Cariaco Trench
Abstract Samples for stable isotope studies of possible chemosynthesis in anoxic basins were collected in 1986 in the Cariaco Trench and May 1988 in the Black Sea. POM (particulate organic matter)
Characterization of an Autotrophic Sulfide-Oxidizing Marine Arcobacter sp. That Produces Filamentous Sulfur
No ribulose 1,5-bisphosphate carboxylase/oxygenase could be detected on the basis of radioisotopic activity or by Western blotting techniques, suggesting an alternative pathway of CO2 fixation.
Isolation and Characterization of Novel Psychrophilic, Neutrophilic, Fe-Oxidizing, Chemolithoautotrophic α- and γ-Proteobacteria from the Deep Sea
This study provides further evidence for the evolutionarily widespread capacity for Fe oxidation among bacteria and suggests that FeOB may play an unrecognized geomicrobiological role in rock weathering in the deep sea.
Sulfide oxidation in the anoxic Black Sea chemocline
The depth distributions of O2 and H2S and of the activity of chemical or bacterial sulfide oxidation were studied in the chemocline of the central Black Sea. Relative to measurements from earlier
Characterization of Large, Autotrophic Beggiatoa spp. Abundant at Hydrothermal Vents of the Guaymas Basin
In situ CO(2) fixation rates, sulfide stimulation of incorporation, and autoradiographic studies suggest that these Beggiatoa spp.
Thiomicrospira crunogena sp. nov., a Colorless, Sulfur-Oxidizing Bacterium from a Deep-Sea Hydrothermal Vent†
A new species of the genus Thiomicrospira was isolated from the 21°N deep-sea (2,600-m) hydrothermal vent area of the East Pacific Rise. This organism is an obligate chemolithoautotrophic sulfur
Evidence for Autotrophic CO2 Fixation via the Reductive Tricarboxylic Acid Cycle by Members of the ε Subdivision of Proteobacteria
Findings represent the first direct evidence for the operation of the reductive tricarboxylic acid cycle for autotrophic CO(2) fixation in epsilon-proteobacteria.
A New Sulfur-Reducing, Extremely Thermophilic Eubacterium from a Submarine Thermal Vent
A newly described bacterial isolate, designated strain NS-E, differs from presently known extremely thermophilic bacteria in various characteristics, including obligately anaerobic, utilizes various sugars as well as yeast extract, and reduces elemental sulfur facultatively to hydrogen sulfide.
Deep-Sea Primary Production at the Galapagos Hydrothermal Vents
Dense animal populations surrounding recently discovered hydrothermal vents at the Galapagos Rift sea-floor spreading center, 2550 meters deep, are probably sustained by microbial primary production.