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 +6 more
doaj +6 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, David A. +2 more
openaire +3 more sources
Large sulfur isotope fractionation by bacterial sulfide oxidation [PDF]
Science Advances, 2019 The microbial oxidation of sulfide can produce large enrichments in the stable isotopes of sulfur.
Pellerin, André +7 more
openaire +4 more sources
Molecular insights into the dynamic relationship between respiration rate and sulfur isotope effect [PDF]
Applied and Environmental MicrobiologyMicrobial 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 +4 more
doaj +2 more sources
Sulfur isotope fractionation during oxidation of sulfur dioxide: gas-phase oxidation by OH radicals and aqueous oxidation by H2O2, O3 and iron catalysis [PDF]
Atmospheric Chemistry and Physics, 2012 The oxidation of SO2 to sulfate is a key reaction in determining the role of sulfate in the environment through its effect on aerosol size distribution and composition.
J. N. Crowley +5 more
doaj +6 more sources
Multiple sulfur isotope signatures of sulfite and thiosulfate reduction by the model dissimilatory sulfate-reducer, Desulfovibrio alaskensis str. G20 [PDF]
Frontiers in Microbiology, 2014 Dissimilatory sulfate reduction serves as a key metabolic carbon remineralization process in anoxic marine environments. Sulfate reducing microorganisms can impart a wide range in mass-dependent sulfur isotopic fractionation.
William D. Leavitt +8 more
doaj +6 more sources
Multiple-sulfur isotope effects during photolysis of carbonyl sulfide [PDF]
Atmospheric Chemistry and Physics, 2011 Laboratory experiments were carried out to determine sulfur isotope effects during ultraviolet photolysis of carbonyl sulfide (OCS) to carbon monoxide (CO) and elemental sulfur (S<sup>0</sup>).
Y. Lin, M. S. Sim, S. Ono
doaj +4 more sources
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.
Hannah Sophia Weber +3 more
doaj +3 more sources
Fractionation of sulfur isotopes during heterogeneous oxidation of SO2 on sea salt aerosol: a new tool to investigate non-sea salt sulfate production in the marine boundary layer [PDF]
Atmospheric Chemistry and Physics, 2012 The oxidation of SO2 to sulfate on sea salt aerosols in the marine environment is highly important because of its effect on the size distribution of sulfate and the potential for new particle nucleation from H2SO4 (g). However, models of the sulfur cycle
S. Borrmann +4 more
doaj +3 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
exaly +2 more sources