Results 1 to 10 of about 3,020 (234)

Role of APS reductase in biogeochemical sulfur isotope fractionation [PDF]

Nature Communications, 2019
Changes in S-isotope ratios over time provide clues to understanding the co-evolution of Earth and its biosphere. Here the authors determine the isotope effect of the first reductive enzyme in the sulfate respiration pathway and reinterpret sedimentary S-
Min Sub Sim, Hideaki Ogata, Wolfgang Lubitz, Jess F. Adkins, Alex L. Sessions, Victoria J. Orphan, Shawn E. McGlynn   +6 more
doaj   +7 more sources

Microbial Sulfur Isotope Fractionation in the Chicxulub Hydrothermal System. [PDF]

Astrobiology, 2021
Target lithologies and post-impact hydrothermal mineral assemblages in a new 1.3 km deep core from the peak ring of the Chicxulub impact crater indicate sulfate reduction was a potential energy source for a microbial ecosystem (Kring et al., 2020 ).
Kring DA, Whitehouse MJ, Schmieder M.
europepmc   +3 more sources

Large sulfur isotope fractionation by bacterial sulfide oxidation. [PDF]

Sci Adv, 2019
The microbial oxidation of sulfide can produce large enrichments in the stable isotopes of sulfur.
Pellerin A, Antler G, Holm SA, Findlay AJ, Crockford PW, Turchyn AV, Jørgensen BB, Finster K.   +7 more
europepmc   +5 more sources

Molecular insights into the dynamic relationship between respiration rate and sulfur isotope effect [PDF]

Applied and Environmental Microbiology
Microbial sulfate reduction and its resulting sulfur isotope effects are crucial for understanding the past and present sulfur cycle. Microbial S-isotope effects have often been explained by their inverse correlation with the cell-specific sulfur ...
Dong Kyun Woo, Bokyung Kim, Yuichiro Ueno, Shawn Erin McGlynn, Min Sub Sim   +4 more
doaj   +2 more sources

High Sulfur Isotope Fractionation Associated with Anaerobic Oxidation of Methane in a Low-Sulfate, Iron-Rich Environment

Frontiers in Earth Science, 2016
Sulfur isotope signatures provide key information for the study of microbial activity in modern systems and the evolution of the Earth surface redox system.
Bo Thamdrup, Thamdrup Bo
exaly   +3 more sources

U mobilization and associated U isotope fractionation by sulfur-oxidizing bacteria

Frontiers in Microbiology, 2023
Uranium (U) contamination of the environment causes high risk to health, demanding for effective and sustainable remediation. Bioremediation via microbial reduction of soluble U(VI) is generating high fractions (>50%) of insoluble non-crystalline U(IV)
Axel Schippers
exaly   +3 more sources

What Controls the Sulfur Isotope Fractionation during Dissimilatory Sulfate Reduction? [PDF]

ACS Environmental Au, 2023
Young Ji Joo, Min Sub Sim, Yeon Woo Hong
exaly   +2 more sources

Intracellular metabolite levels shape sulfur isotope fractionation during microbial sulfate respiration [PDF]

Proceedings of the National Academy of Sciences of the United States of America, 2014
Itay Halevy, Boswell Wing
exaly   +2 more sources

Sulfur reduction distillation of sulfides and verification of the effect of sulfur isotopic fractionation during pretreatment

Journal of Analytical Science and Technology, 2023
Toxic gases can be emitted when sulfides form compounds with heavy metals; thus, a series of pretreatments are required prior to the analysis of sulfur isotope ratios to remove unnecessary elements.
Jaeguk Jo, Toshiro Yamanaka, Hitoshi Chiba, Dongbok Shin   +3 more
doaj   +1 more source

Diversity of Sulfur Isotope Fractionations by Sulfate-Reducing Prokaryotes [PDF]

Applied and Environmental Microbiology, 2001
ABSTRACT Batch culture experiments were performed with 32 different sulfate-reducing prokaryotes to explore the diversity in sulfur isotope fractionation during dissimilatory sulfate reduction by pure cultures. The selected strains reflect the phylogenetic and physiologic diversity of presently known sulfate reducers and cover a ...
Detmers, Jan, Brüchert, Volker, Habicht, K S, Kuever, Jan   +3 more
openaire   +4 more sources