Department of Civil and Environmental Engineering, Princeton University, Princeton, New Jersey, United States of America.
PLoS One. 2018 Apr 11;13(4):e0194007. doi: 10.1371/journal.pone.0194007. eCollection 2018.
Acidimicrobiaceae sp. A6 (ATCC, PTA-122488), a strain that has been previously reported to play a key role in the oxidation of ammonium (NH4+) under iron reducing conditions, has now been isolated from riparian wetland soils in New Jersey, USA. Incubations of this strain in a medium containing ferrihydrite as the ferric iron [Fe(III)] source, CO2 as the carbon source, under room temperature, and a pH of 4.5, resulted in 52% of NH4+ removal over a 20-day incubation period, while reducing Fe(III) in the expected stoichiometric ratio when NH4+ was oxidized to nitrite with Fe(III) as the electron acceptor. This study demonstrates that this new isolated strain is capable of oxidizing NH4+ while reducing iron under anaerobic conditions.
嗜酸微生物科 A6 菌（ATCC，PTA-122488），先前有报道称其在铁还原条件下对铵（NH4+）的氧化起着关键作用，现已从美国新泽西州的河岸湿地土壤中分离出来。该菌株在含有水铁矿作为铁源[Fe(III)]、CO2 作为碳源、室温、pH 值为 4.5 的培养基中培养，在 20 天的培养期内，有 52%的 NH4+被去除，而当 NH4+被氧化为亚硝酸盐时，Fe(III)以预期的化学计量比被还原，此时 Fe(III)作为电子受体。本研究表明，这种新分离的菌株能够在厌氧条件下氧化 NH4+并还原铁。
