Results 11 to 20 of about 184,111 (289)

Thermophilic and mesophilic sulfate reduction by rare biosphere bacteria in acidic metal-bearing mine wastes from the temperate climate zone [PDF]

Scientific Reports
Dissimilatory sulfate reduction is the main microbial process that detoxifies metals and increases pH in acid mine drainage. Acidophilic, copper-resistant Desulfosporosinus sp. BG and Desulfosporosinus sp.
Olga V. Karnachuk, Inna A. Panova, Igor I. Rusanov, Marat R. Avakyan, Anastasia P. Lukina, Olga P. Ikkert, Nurai Kijar, Vitaly V. Kadnikov, Alexey V. Beletsky, Erzhena V. Danilova, Dmitry S. Kopitsyn, Nikolay V. Pimenov, Viktoria A. Shcherbakova, Nikolai V. Ravin   +13 more
doaj   +2 more sources

Cryptic sulfur cycling in the deep biosphere of ferruginous Lake Towuti, Indonesia [PDF]

Frontiers in Microbiology
Lake Towuti, Sulawesi, Indonesia is an ancient tectonic lake, exhibiting iron-rich, sulfate-poor anoxic deep waters. Temporal variations in water column stratification led to sediment accumulation under variable redox conditions.
Fátima Ruiz-Blas, Alexander Bartholomäus, Cynthia Henny, James M. Russell, Jens Kallmeyer, Jens Kallmeyer, Aurèle Vuillemin   +6 more
doaj   +2 more sources

Microbial manganese and sulfate reduction in Black Sea shelf sediments [PDF]

Applied and Environmental Microbiology, 2000
The microbial ecology of anaerobic carbon oxidation processes was investigated in Black Sea shelf sediments from mid-shelf with well-oxygenated bottom water to the oxic-anoxic chemocline at the shelf-break.
Amann, R., Rosselló-Mora, R., Thamdrup, B.   +2 more
core   +4 more sources

The effects of organic matter and anaerobic oxidation of methane on the microbial sulfate reduction in cold seeps

Frontiers in Marine Science, 2023
Cold seep sediments are dominated by intensive microbial sulfate reduction coupled to anaerobic oxidation of methane. However, the contribution proportion between this process and the role of organic matter has remained enigmatic.
Tiantian Sun, Tiantian Sun, Daidai Wu, Nengyou Wu, Nengyou Wu, Ping Yin, Ping Yin   +6 more
doaj   +1 more source

Sulfur and Oxygen Isotope Records of Sulfate-Driven Anaerobic Oxidation of Methane in Diffusion-Dominated Marine Sediments

Frontiers in Earth Science, 2022
Organoclastic sulfate reduction (OSR) and sulfate-driven anaerobic oxidation of methane (SD-AOM) are the two major microbial pathways for sulfate consumption in marine sulfur cycle.
Tingting Chen, Tingting Chen, Harald Strauss, Yunxin Fang, Zhiyong Lin, Zhiyong Lin, Zhiyong Lin, Xiaoming Sun, Xiaoming Sun, Xiaoming Sun, Jiarui Liu, Yang Lu, Xin Yang, Xin Yang, Haixin Lin, Haixin Lin, Zhongwei Wu, Zhongwei Wu, Xiao Lin, Xiao Lin   +19 more
doaj   +1 more source

Rates of sulfate reduction and thiosulfate consumption in a marine microbial mat [PDF]

FEMS Microbiology Letters, 1992
The sulfur cycle in a microbial mat was studied by determining viable counts of sulfate-reducing bacteria, chemolithoautotrophic sulfur bacteria and anoxygenic phototrophic bacteria. All three functional groups of sulfur bacteria revealed a maximum population density in the uppermost 5 mm of the mat: 1.1 X 10(8) cells of sulfate reducers cm-3 sediment,
VISSCHER, PT, PRINS, RA, VANGEMERDEN, H
openaire   +5 more sources

Iron and sulfate reduction structure microbial communities in (sub-)Antarctic sediments [PDF]

The ISME Journal, 2021
Abstract Permanently cold marine sediments are heavily influenced by increased input of iron as a result of accelerated glacial melt, weathering, and erosion. The impact of such environmental changes on microbial communities in coastal sediments is poorly understood.
Lea C Wunder, David A Aromokeye, Xiuran Yin, Tim Richter-Heitmann, Graciana Willis-Poratti, Annika Schnakenberg, Carolin Otersen, Ingrid Dohrmann, Miriam Römer, Gerhard Bohrmann, Sabine Kasten, Michael W Friedrich   +11 more
openaire   +3 more sources

Impact of Organic Carbon Electron Donors on Microbial Community Development under Iron- and Sulfate-Reducing Conditions. [PDF]

PLoS ONE, 2016
Although iron- and sulfate-reducing bacteria in subsurface environments have crucial roles in biogeochemical cycling of C, Fe, and S, how specific electron donors impact the compositional structure and activity of native iron- and/or sulfate-reducing ...
Man Jae Kwon, Edward J O'Loughlin, Maxim I Boyanov, Jennifer M Brulc, Eric R Johnston, Kenneth M Kemner, Dionysios A Antonopoulos   +6 more
doaj   +1 more source

Microbial sulfate reduction in littoral sediment of Lake Constance [PDF]

FEMS Microbiology Ecology, 1991
Abstract Porewater concentrations of SO 4 2− and NO 3 − , the depth distribution of FeS, FeS 2 and organically bound sulfur, and the spatial distribution and intensity of dissimilatory microbial sulfate reduction were studied at a littoral site in Lake Constance. Porewater sulfate concentrations dropped steeply from about 300 μM at the surface to
Friedhelm Bak, Norbert Pfennig
openaire   +3 more sources

Modelling the Effects of Non-Steady State Transport Dynamics on the Sulfur and Oxygen Isotope Composition of Sulfate in Sedimentary Pore Fluids

Frontiers in Earth Science, 2021
We present the results of an isotope-enabled reactive transport model of a sediment column undergoing active microbial sulfate reduction to explore the response of the sulfur and oxygen isotopic composition of sulfate under perturbations to steady state.
Angus Fotherby, Harold J. Bradbury, Gilad Antler, Xiaole Sun, Jennifer L. Druhan, Alexandra V. Turchyn   +5 more
doaj   +1 more source