Effect of Reduced Sulfur Species on Chemolithoautotrophic Pyrite Oxidation with Nitrate

Verfasst von

Ruiwen Yan, Andreas Kappler, E. Marie Muehe, Klaus-Holger Knorr, Marcus Andreas Horn, Alexander Poser, Regina Lohmayer, Stefan Peiffer

Abstract

We compared the response at neutral pH of some denitrifiers to different electron donors such as reduced sulfur (pyrite, S(0), and marcasite) and reduced Fe. Chemolithoautotrophic oxidation of pyrite with nitrate as electron acceptor was not possible when the pyrite was in a pure crystalline form, whereas oxidation of synthesized FeS

₂ of low crystallinity and of S(0) with nitrate as electron acceptor was possible. Neither nitrite nor sulfate was formed when Fe(II)-oxidizing strain Acidovorax sp. BoFeN1 was tested. Microbial reduction of nitrate appears to be induced via S oxidation but not via Fe oxidation.

Details

Organisationseinheit(en): Institut für Mikrobiologie
Externe Organisation(en): Universität Bayreuth
Eberhard Karls Universität Tübingen
Stanford University
Universität Münster
Helmholtz-Zentrum für Umweltforschung (UFZ)
Typ: Artikel
Journal: Geomicrobiology journal
Band: 36
Seiten: 19-29
Anzahl der Seiten: 11
ISSN: 0149-0451
Publikationsdatum: 02.01.2019
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Mikrobiologie, Umweltchemie, Allgemeine Umweltwissenschaft, Erdkunde und Planetologie (sonstige)
Elektronische Version(en): https://figshare.com/articles/journal_contribution/Effect_of_Reduced_Sulfur_Species_on_Chemolithoautotrophic_Pyrite_Oxidation_with_Nitrate/7387235 (Zugang: Offen )
https://doi.org/10.1080/01490451.2018.1489915 (Zugang: Geschlossen )