|Yan, Ruiwen; Kappler, A; Muehe, EM; Knorr, KH; Horn, MA; Poser, A; Lohmayer, R; Peiffer, S: Effect of Reduced Sulfur Species on Chemolithoautotrophic Pyrite Oxidation with Nitrate, Geomicrobiology Journal (2018), online: 2018-11-27, doi:https://doi.org/10.1080/01490451.2018.1489915|
|Key words: Pyrite, nitrate, reduced sulfur, reduced Fe, chemolithoautotrophic oxidation, nitrate-reducing bacterium|
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 FeS2 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.
Living on the ice edge: insights into the environmental, climatic, and human history of the Ethiopian highlands
Challenges in Soil Hydrological Modeling -- The Devil is in the Details ...
Die aktuelle Situation der deutschen Wälder
BayCEER members´ meeting
Führung | Startklar! Bäume und ihre Knospen