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Discovery of a New Genus of Anaerobic Ammonium Oxidizing Bacteria with a Mechanism for Oxygen Tolerance by Yuchun Yang; Zhongyi Lu; Mohammad Azari; Boran Kartal; Huan Du; Mingwei Cai; Craig W. Herbold; Xinghua Ding; Martin Denecke; Xiaoyan Li; Meng Li; Ji-Dong Gu is a Environmental Science article available to read on EtoBox.
What is Discovery of a New Genus of Anaerobic Ammonium Oxidizing Bacteria with a Mechanism for Oxygen Tolerance about?
In the past 20 years, there has been a major stride in understanding the core mechanism of anaerobic ammonium-oxidizing (anammox) bacteria, but there are still several discussion points on their survival strategies. Here, we discovered a new genus of anammox bacteria in a full-scale wastewater-treating biofilm system, tentatively named “Candidatus Loosdrechtia aerotolerans”. Next to genes of all core anammox metabolisms, it encoded and transcribed genes involved in the dissimilatory nitrate reduction to ammonium (DNRA), which coupled to oxidation of small organic acids, could be used to replenish ammonium and sustain their metabolism. Surprisingly, it uniquely harbored a new ferredoxin-dependent nitrate reductase, which has not yet been found in any other anammox genome and might confer a selective advantage to it in nitrate assimilation. Similar to many other microorganisms, superoxide dismutase and catalase related to oxidative stress resistance were encoded and transcribed by “Ca. Loosdrechtia aerotolerans”. Interestingly, bilirubin oxidase (BOD), likely involved in oxygen resistance of anammox bacteria under fluctuating oxygen concentrations, was identified in “Ca. Loosdrechtia
Who reads Discovery of a New Genus of Anaerobic Ammonium Oxidizing Bacteria with a Mechanism for Oxygen Tolerance?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Yuchun Yang; Zhongyi Lu; Mohammad Azari; Boran Kartal; Huan Du; Mingwei Cai; Craig W. Herbold; Xinghua Ding; Martin Denecke; Xiaoyan Li; Meng Li; Ji-Dong Gu
- Publisher
- Elsevier BV
- Published
- 2022
- Language
- EN
- Field
- Environmental Science (Physical Sciences)