The DOI matches its Crossref record; 51 of the 51 references it cites were found in a registry or an index.
Electron Shuttles Enhance Anaerobic Ammonium Oxidation Coupled to Iron(III) Reduction
Open accessAbstract
Anaerobic ammonium oxidation coupled to iron(III) reduction, termed Feammox, is a newly discovered nitrogen cycling process. However, little is known about the roles of electron shuttles in the Feammox reactions. In this study, two forms of Fe(III) (oxyhydr)oxide ferrihydrite (ex situ ferrihydrite and in situ ferrihydrite) were used in dissimilatory Fe(III) reduction (DIR) enrichments from paddy soil. Evidence for Feammox in DIR enrichments was demonstrated using the (15)N-isotope tracing technique. The extent and rate of both the (30)N2-(29)N2 and Fe(II) formation were enhanced when amended with electron shuttles (either 9,10-anthraquinone-2,6-disulfonate (AQDS) or biochar) and further simulated when these two shuttling compounds were combined. Although the Feammox-associated Fe(III) reduction accounted for only a minor proportion of total Fe(II) formation compared to DIR, it was estimated that the potentially Feammox-mediated N loss (0.13-0.48 mg N L(-1) day(-1)) was increased by 17-340% in the enrichments by the addition of electron shuttles. The addition of electron shuttles led to an increase in the abundance of unclassified Pelobacteraceae, Desulfovibrio, and denitrifiers but a decrease in Geobacter. Overall, we demonstrated a stimulatory effect of electron shuttles on Feammox that led to higher N loss, suggesting that electron shuttles might play a crucial role in Feammox-mediated N loss from soils.
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Cites
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An evolving view on biogeochemical cycling of iron
Kappler, A., Bryce, C., Mansor, M., Lueder, U., Byrne, J. M., & Swanner, E. D. (2021) · Nature Reviews Microbiology · doi:10.1038/s41579-020-00502-7 · Cited by 854
Applications of biochar in redox-mediated reactions
Yuan, Y., Bolan, N., Prévoteau, A., Vithanage, M., Biswas, J. K., Ok, Y. S., & Wang, H. (2017) · Bioresource Technology · doi:10.1016/j.biortech.2017.06.154 · Cited by 486
Wan, L., Liu, H., & Wang, X. (2022) · Science of The Total Environment · doi:10.1016/j.scitotenv.2021.151687 · Cited by 92
Metadata
- Authors
- Zhou, G.-W., Yang, X.-R., Li, H., Marshall, C. W., Zheng, B.-X., Yan, Y., Su, J.-Q., & Zhu, Y.-G.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-08-19
- Volume
- 50
- Issue
- 17
- Pages
- 9298-9307
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2491989403
- Cited by
- 332
- References
- 51
- FWCI
- 11.04
- Type
- journal article
- Language
- en
- Open access
- green
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- Zhou, G.-W., Yang, X.-R., Li, H., Marshall, C. W., Zheng, B.-X., Yan, Y., Su, J.-Q., & Zhu, Y.-G. (2016). Electron Shuttles Enhance Anaerobic Ammonium Oxidation Coupled to Iron(III) Reduction. Environmental Science & Technology. https://doi.org/10.1021/acs.est.6b02077
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