Ontology highlight
ABSTRACT:
SUBMITTER: Lotfi-Kalahroodi E
PROVIDER: S-EPMC7820352 | biostudies-literature | 2021 Jan
REPOSITORIES: biostudies-literature
Lotfi-Kalahroodi Elaheh E Pierson-Wickmann Anne-Catherine AC Rouxel Olivier O Marsac Rémi R Bouhnik-Le Coz Martine M Hanna Khalil K Davranche Mélanie M
Scientific reports 20210121 1
Although redox reactions are recognized to fractionate iron (Fe) isotopes, the dominant mechanisms controlling the Fe isotope fractionation and notably the role of organic matter (OM) are still debated. Here, we demonstrate how binding to organic ligands governs Fe isotope fractionation beyond that arising from redox reactions. The reductive biodissolution of soil Fe(III) enriched the solution in light Fe isotopes, whereas, with the extended reduction, the preferential binding of heavy Fe isotop ...[more]