N2O and NOy production by the comammox bacterium Nitrospira inopinata in comparison with canonical ammonia oxidizers

Han, Ping; Wu, Dianming; Sun, Dongyao; Zhao, Mingming; Wang, Mengdi; Wen, Teng; Zhang, Jinbo; Hou, Lijun; Liu, Min; Klümper, Uli; Zheng, Yanling; Dong, Huicong; Liang, Xia; Yin, Guoyu

doi:10.1016/j.watres.2020.116728

Cited by 63 publications

(25 citation statements)

References 65 publications

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“…Nitrospira inopinata to N 2 O emission was similar to that of AOA, but much lower than that of AOB 54 . Han et al (2021) also reported that the N 2 O and NO y production capacity of comammox Nitrospira was only 3 − 15% of AOA and AOB 55 . More attention should be paid to the subsequent environmental effects induced by these niche differentiations.…”

Section: Discussionmentioning

confidence: 99%

Niche differentiation of comammox Nitrospira in sediments of the Three Gorges Reservoir typical tributaries, China

Zhang

Zhao

et al. 2022

Sci Rep

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Complete ammonia oxidizer (Comammox) can complete the whole nitrification process independently, whose niche differentiation is important guarantee for its survival and ecological function. This study investigated the niche differentiation of comammox Nitrospira in the sediments of three typical tributaries of the Three Gorges Reservoir (TGR). Clade A and clade B of comammox Nitrospira coexisted in all sampling sites simultaneously. The amoA gene abundance of clade A and B was gradually increased or decreased along the flow path of the three tributaries with obvious spatial differentiation. The amoA gene abundance of comammox Nitrospira clade A (6.36 × 103 − 5.06 × 104 copies g−1 dry sediment) was higher than that of clade B (6.26 × 102 − 6.27 × 103 copies g−1 dry sediment), and the clade A amoA gene abundance was one order of magnitude higher than that of AOA (7.24 × 102 − 6.89 × 103 copies g−1 dry sediment) and AOB (1.44 × 102 − 1.46 × 103 copies g−1 dry sediment). A significant positive correlation was observed between comammox Nitrospira clade A amoA gene abundance and flow distance (P < 0.05). The number of operational taxonomic units (OTUs) in two sub-clades of clade A accounted for the majority in different tributaries, indicating that clade A also had population differentiation among different tributaries. This study revealed that comammox Nitrospira in the sediments of TGR tributaries have niche differentiation and clade A.2 played a more crucial role in comammox Nitrospira community.

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Section: Discussionmentioning

confidence: 99%

Niche differentiation of comammox Nitrospira in sediments of the Three Gorges Reservoir typical tributaries, China

Zhang

Zhao

et al. 2022

Sci Rep

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“…Compared to a previous study from Han et al [17]which mixed selenium-wolfram solution (SWS), trace element solution, KH2PO4, KCl, MgSO4.7H2O, NaCl, and CaCO3 to create ammonia-oxidizing microbes cultivation media, this research used pellets as a source of nutrients which were made from organic materials such as tofu and corn flour. It was mixed with an active solution of ammonia oxidizers.…”

Section: B Physical Characteristics and Pellet's Water Contentmentioning

confidence: 99%

Development of Active Solids Activator (Pellet) Using Local Culture from Badung River, Bali to Enhance Nitrification Process of Goat Wastewater

Suyasa¹,

Sudiartha²

2021

International Journal on Advanced Science, Engineering and Information Technology

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Goat urine wastewater that is disposed of without being processed will certainly cause environmental pollution. Therefore it is necessary to process the livestock waste. Processing goat urine into fertilizer needs to be done by converting ammonia to nitrate, or what is called the nitrification process. Nitrification takes place in two stages of oxidation, the first is the oxidation of ammonium to nitrite, and the second is the oxidation of nitrite to nitrate with the help of oxygen. The materials used in this study were (NH4)2SO4,

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“…Nitrogen transforming processes release nitrous acid (HONO), nitric oxide (NO), nitrous oxide (N2O), and dinitrogen (N2) from soil to the atmosphere. HONO, NO, and N2O is produced in aerobic ammonia (NH4 + ) oxidation (blue arrows) by chemolithotrophic bacteria, archaea, and comammox organisms (complete ammonia oxidation to nitrate) (Oswald et al 2013, Ermel et al 2018, Han et al 2021. Ammonia oxidation can also support HONO formation via abiotic reactions between hydroxylamine (NH2OH) and water (Ermel et al 2018).…”

Section: Introductionmentioning

confidence: 99%

“…Agricultural soils are also globally significant sources of the potent greenhouse gas N 2 O (3.8 Tg N yr −1 ) (Tian et al 2020), suggesting that the production mechanisms of HONO, NO, and N 2 O are interlinked and related to high N turnover rates in soil (Maljanen et al 2013, 2019, Wu et al 2019. Indeed, studies have clearly shown the role of microbial N-transformation pathways, most importantly nitrification and denitrification, behind N 2 O, HONO, and NO production (Oswald et al 2013, Scharko et al 2015, Ermel et al 2018, Wu et al 2019, Bhattarai et al 2021, Han et al 2021 (figure 1). In addition to reports from agricultural soils, a few studies have reported HONO and NO emissions from soils under natural vegetation, such as biocrust (Weber et al 2015) and forest soils (Mushinski et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Emissions of atmospherically reactive gases nitrous acid and nitric oxide from Arctic permafrost peatlands

Bhattarai

Marushchak

Ronkainen

et al. 2022

Environ. Res. Lett.

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Soils are important sources of nitric oxide (NO) and nitrous acid (HONO) in the atmosphere. These nitrogen (N)-containing gases play a crucial role in atmospheric chemistry and climate at different scales because of reactions modulated by NO and hydroxyl radicals (OH), which are formed via HONO photolysis. Northern permafrost soils have so far remained unexplored for HONO and NO emissions despite their high N stocks, capacity to emit nitrous oxide (N2O), and enhancing mineral N turnover due to warming and permafrost thawing. Here, we report the first HONO and NO emissions from high-latitude soils based on measurements of permafrost-affected subarctic peatlands. We show large HONO (0.1 to 2.4 µg N m-2 h-1) and NO (0.4 to 59 µg N m-2 h-1) emissions from unvegetated peat surfaces, rich with mineral N, compared to low emissions (≤ 0.2 µg N m-2 h-1 for both gases) from adjacent vegetated surfaces (experiments with intact peat cores). We observed HONO production under highly variable soil moisture conditions from dry to wet. However, based on complementary slurry experiments, HONO production was strongly favored by high soil moisture and anoxic conditions. We suggest urgent examination of other Arctic landscapes for HONO and NO emissions to better constrain the role of these reactive N gases in Arctic atmospheric chemistry.

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N2O and NOy production by the comammox bacterium Nitrospira inopinata in comparison with canonical ammonia oxidizers

Cited by 63 publications

References 65 publications

Niche differentiation of comammox Nitrospira in sediments of the Three Gorges Reservoir typical tributaries, China

Niche differentiation of comammox Nitrospira in sediments of the Three Gorges Reservoir typical tributaries, China

Development of Active Solids Activator (Pellet) Using Local Culture from Badung River, Bali to Enhance Nitrification Process of Goat Wastewater

Emissions of atmospherically reactive gases nitrous acid and nitric oxide from Arctic permafrost peatlands

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