Results 41 to 50 of about 12,578 (193)

Bacterial dissimilatory reduction of arsenate and sulfate in meromictic Mono Lake, California [PDF]

Geochimica et Cosmochimica Acta, 2000
Abstract The stratified (meromictic) water column of alkaline and hypersaline Mono Lake, California, contains high concentrations of dissolved inorganic arsenic (∼200 μmol/L). Arsenic speciation changes from arsenate [As (V)] to arsenite [As (III)] with the transition from oxic surface waters (mixolimnion) to anoxic bottom waters (monimolimnion).
Ronald S Oremland, Philip R Dowdle, Shelly Hoeft, Jonathan O Sharp, Jeffra K Schaefer, Laurence G Miller, Jodi Switzer Blum, Richard L Smith, Nicholas S Bloom, Dirk Wallschlaeger   +9 more
openaire   +1 more source

Dissimilatory sulfate reduction in the archaeon ‘Candidatus Vulcanisaeta moutnovskia’ sheds light on the evolution of sulfur metabolism [PDF]

Nature Microbiology, 2020
Dissimilatory sulfate reduction (DSR)-an important reaction in the biogeochemical sulfur cycle-has been dated to the Palaeoarchaean using geological evidence, but its evolutionary history is poorly understood. Several lineages of bacteria carry out DSR, but in archaea only Archaeoglobus, which acquired DSR genes from bacteria, has been proven to ...
Nikolay A. Chernyh, Sinje Neukirchen, Evgenii N. Frolov, Filipa L. Sousa, Margarita L. Miroshnichenko, Alexander Y. Merkel, Nikolay V. Pimenov, Dimitry Y. Sorokin, Sergio Ciordia, María Carmen Mena, Manuel Ferrer, Peter N. Golyshin, Alexander V. Lebedinsky, Inês A. Cardoso Pereira, Elizaveta A. Bonch-Osmolovskaya   +14 more
openaire   +3 more sources

Usage of metals as the terminal electron acceptors by the sulfate-reducing bacteria

Біологічні студії, 2009
The review briefly describes the toxic effects of heavy metals towards microorganisms and the resistance mechanisms to heavy metals. The processes of fermentative and non-fermentative reduction of oxidized metals forms by the sulfate-reducing bacteria ...
T. B. Peretyatko, A. A. Halushka, S. P. Gudz   +2 more
doaj   +1 more source

Reduction of uranium(VI) phosphate during growth of the thermophilic bacterium Thermoterrabacterium Ferrireducens

, 2005
The thermophilic, gram-positive bacterium Thermoterrabacterium ferrireducens coupled organotrophic growth to the reduction of sparingly soluble U(VI) phosphate.
Renshaw, Joanna, J. C. Renshaw, J. R. Lloyd, Khijniak, T. V., V. Coker, Coker, V, Livens, FR, Livens, F. R.; id_orcid, N.-K. Birkeland, Birkeland NK, A. I. Slobodkin, Livens FR, Lloyd, J. R.; id_orcid, Birkeland, NK, T. V. Khijniak, Bonch-Osmolovskaya EA, Slobodkin AI, Bonch-Osmolovskaya, EA, Renshaw, J. C., Coker, V., E. A. Bonch-Osmolovskaya, Medvedeva-Lyalikova, N. N., Lloyd, JR, Coker, V.; id_orcid, Medvedeva-Lyalikova, NN, Renshaw JC, F. R. Livens, Birkeland, N. K., Khijniak, TV, Slobodkin, A. I., Slobodkin, AI, Lloyd JR, Corker V, Medvedeva-Lyalikova NN, Khijniak TV, Bonch-Osmolovskaya, E. A., Livens, F. R., Lloyd, J. R., N. N. Medvedeva-Lyalikova   +38 more
core   +1 more source

Coupled anoxic nitrification/manganese reduction in marine sediments [PDF]

, 1999
Pore water and solid phase distributions of oxygen, manganese, and nitrogen from hemipelagic and shelf sediments sometimes indicate a close coupling between the manganese and nitrogen redox cycles.
Franck Gilbert, Robert C Aller, Aller, Robert Curwood, Gilbert, Franck, Stefan Hulth, Hulth, Stefan   +5 more
core   +1 more source

Biosurfactant production by Pseudomonas aeruginosa isolated from mining waste: From genomic analysis to development of a polymeric composite for removal of hexavalent chromium

Polymer International, EarlyView.
Biosurfactant was produced by Pseudomonas aeruginosa using andiroba waste from Amazonia. A biosurfactant–alginate composite (Alg/BioS) was successfully synthesized via ionotropic gelation, and achieved up to 70% Cr6+ removal from water. Abstract Environmental contamination by heavy metals represents a significant challenge due to their persistence in ...
Paulo Diniz Austriaco, Emilly Cruz da Silva, Glenda Sores Gomes, Joane Almeida Alves, Amanda Vidal, Leandro Argolo, Rafaela Ribeiro, Luciana Souza, José Augusto Pires Bitencourt, Leonardo Brasil Felipe, Leonie Asfora Sarubbo, Sidnei Cerqueira dos Santos   +11 more
wiley   +1 more source

Phylogeny of the alpha and beta subunits of the dissimilatory adenosine-5′-phosphosulfate (APS) reductase from sulfate-reducing prokaryotes – origin and evolution of the dissimilatory sulfate-reduction pathway [PDF]

Microbiology, 2007
Newly developed PCR assays were used to PCR-amplify and sequence fragments of the dissimilatory adenosine-5'-phosphosulfate (APS) reductase genes (aprBA) comprising nearly the entire gene locus (2.2-2.4 kb, equal to 92-94 % of the protein coding sequence) from 75 sulfate-reducing prokaryotes (SRP) of a taxonomically wide range. Comparative phylogenetic
Meyer, B., Kuever, J.
openaire   +3 more sources

Multi-omics analyses provide insights into the sulfur metabolism of a novel deep-sea sulfate-reducing bacterium

iScience
Summary: Sulfate-reducing bacteria (SRB) are ubiquitously distributed across various biospheres and play key roles in global sulfur and carbon cycles. However, few deep-sea SRB have been cultivated and studied in situ, limiting our understanding of the ...
Chong Wang, Rikuan Zheng, Chaomin Sun
doaj   +1 more source

Single-Cell Genomics Reveals a Diverse Metabolic Potential of Uncultivated Desulfatiglans-Related Deltaproteobacteria Widely Distributed in Marine Sediment

Frontiers in Microbiology, 2018
Desulfatiglans-related organisms comprise one of the most abundant deltaproteobacterial lineages in marine sediments where they occur throughout the sediment column in a gradient of increasing sulfate and organic carbon limitation with depth ...
Lara M. Jochum, Lars Schreiber, Ian P. G. Marshall, Bo B. Jørgensen, Andreas Schramm, Kasper U. Kjeldsen   +5 more
doaj   +1 more source

Possible synergy effect of hydrogen sulfide and acetate produced by sulfate-reducing bacteria on inflammatory bowel disease development

Journal of Advanced Research, 2021
Introduction: Increased numbers of sulfate-reducing bacteria (SRB) are often found in the feces of people and animals with inflammatory bowel disease.
Ivan Kushkevych, Dani Dordević, Monika Vítězová   +2 more
doaj   +1 more source