Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

Stable Fe isotope fractionation during dissimilatory Fe(III) reduction by a thermoacidophile in acidic hydrothermal environments

Piyali Chanda, Maximiliano J. Amenábar, Eric S. Boyd, Brian L. Beard, Clark M. Johnson

Geochimica et Cosmochimica Acta · 2020

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Summary

This laboratory study investigates stable iron isotope fractionation during dissimilatory Fe(III) reduction by a thermoacidophilic microorganism under acidic hydrothermal conditions. The work contributes to understanding how microbial iron metabolism produces measurable isotopic signatures in geochemical environments, with potential applications to interpreting ancient iron deposits and modern acidic ecosystems. As suggested by the journal and methodology, the findings are primarily relevant to geomicrobiology and isotope biogeochemistry rather than agricultural or nutritional systems.

UK applicability

This fundamental geomicrobiology research has limited direct applicability to UK farming systems or soil health. However, the isotopic tracing methods developed may inform future studies on microbial iron cycling in contaminated or acidic British soils, should such investigations be undertaken.

Key measures

Stable iron isotope ratios (likely expressed as δ56Fe or Δ56Fe values); Fe(III) reduction rates; fractionation factors during dissimilatory reduction

Outcomes reported

The study examined stable iron isotope fractionation patterns during dissimilatory Fe(III) reduction by a thermoacidophilic microorganism in simulated acidic hydrothermal conditions. The research measured isotopic shifts to understand microbial iron metabolism and its geochemical signatures.

Theme
Measurement & metrics
Subject
Soil biology & microbiology
Study type
Research
Study design
Laboratory / in vitro
Source type
Peer-reviewed study
Status
Published
Geography
International
System type
Laboratory / in vitro
DOI
10.1016/j.gca.2020.09.025
Catalogue ID
BFmommplpq-urpwjg

Topic tags

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