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1. Biological nitrification inhibition in maize—isolation and identification of hydrophobic inhibitors from root exudates

Author:
Junnosuke Otaka; Guntur Venkata Subbarao; Hiroshi Ono; Tadashi Yoshihashi
Source:
Biology and fertility of soils 2022 v.58 no.3 pp. 251-264
ISSN:
0178-2762
Subject:
nitrifying bacteria,   etc   ; Nitrosomonas europaea; biochemical pathways; corn; exudation; fractionation; hydrophobicity; methanol; methylene chloride; nitrification; pollution; soil; spectroscopy;     Show all 13 Subjects
Abstract:
... To control agronomic N losses and reduce environmental pollution, biological nitrification inhibition (BNI) is a promising strategy. BNI is an ecological phenomenon by which certain plants release bioactive compounds that can suppress nitrifying soil microbes. Herein, we report on two hydrophobic BNI compounds released from maize root exudation (1 and 2), together with two BNI compounds inside mai ...
DOI:
10.1007/s00374-021-01577-x

2. Isolation and application of a thermotolerant nitrifying bacterium Gordonia paraffinivorans N52 in sewage sludge composting for reducing nitrogen loss

Author:
Yi Zhao; Weiguang Li; Li Chen; Yujie Zhou; Liqiang Meng; Shumei Zhang
Source:
Bioresource technology 2022 v.363 pp. 127959
ISSN:
0960-8524
Subject:
nitrifying bacteria,   etc   ; ammonia; ammonium nitrogen; heat tolerance; nitrate nitrogen; nitrification; nitrogen; nitrogen balance; pH; sewage sludge; technology; total nitrogen;     Show all 12 Subjects
Abstract:
... A thermotolerant strain with heterotrophic nitrification capability obtained from sludge composting was identified as Gordonia paraffinivorans N52. Strain N52 utilized 51.8% of ammonium nitrogen (NH₄⁺-N) at 60℃, and the nitrogen balance results indicated that 25.5% of the consumed NH₄⁺-N was changed into nitrification intermediates, 53.0% to intracellular nitrogen, and only 5.2% was lost. The succ ...
DOI:
10.1016/j.biortech.2022.127959

3. Contrasting patterns of nitrogen release from fine roots and leaves driven by microbial communities during decomposition

Author:
Toko Tanikawa; Nagamitsu Maie; Saori Fujii; Lijuan Sun; Yasuhiro Hirano; Takeo Mizoguchi; Yosuke Matsuda
Source:
Science of the total environment 2023 v.855 pp. 158809
ISSN:
0048-9697
Subject:
nitrifying bacteria,   etc   ; Chamaecyparis obtusa; Cryptomeria japonica; DNA barcoding; bacterial communities; chemical composition; community structure; environment; forests; fungal communities; fungi; indicator species; leachates; leaves; nitrates; nitrogen; pH; plant litter; species diversity; trees;     Show all 20 Subjects
Abstract:
... Leachate from decaying root and leaf litter plays crucial roles in soil biogeochemical processes in forest ecosystems. Unlike for leaf litter, however, the chemical composition and microbial community of root litter leachate are poorly understood. We hypothesized that both leachate nitrogen (N) composition and microbial communities differ between plant organs and decomposition stages and that leac ...
DOI:
10.1016/j.scitotenv.2022.158809

4. Removal of Mn(II) by a nitrifying bacterium Acinetobacter sp. AL-6: efficiency and mechanisms

Author:
Qiang An; Lin Jin; Shuman Deng; Zheng Li; Chenyi Zhang
Source:
Environmental science and pollution research 2021 v.28 no.24 pp. 31218-31229
ISSN:
0944-1344
Subject:
nitrifying bacteria,   etc   ; Acinetobacter; adsorption; bacterial growth; metabolism; nitrification; oxidation; pH; pollution; research;     Show all 10 Subjects
Abstract:
... A nitrifying bacterium Acinetobacter sp. AL-6 showed a high efficiency of 99.05% for Mn(II) removal within 144 h when the Mn(II) concentration was 200 mg L⁻¹; meanwhile, 64.23% of NH₄⁺-N was removed. With the Mn(II) concentration increased from 25 to 300 mg L⁻¹, bacterial growth and Mn(II) removal were stimulated. However, due to the electron acceptor competition between Mn(II) oxidation and nitri ...
DOI:
10.1007/s11356-021-12764-6

5. N-acyl-l-homoserine lactones release and microbial community changes in response to operation temperature in an anammox biofilm reactor

Author:
Lingjie Liu; Min Ji; Fen Wang; Zhongke Tian; Zhao Yan; Shuya Wang
Source:
Chemosphere 2021 v.262 pp. 127602
ISSN:
0045-6535
Subject:
nitrifying bacteria,   etc   ; anaerobic ammonium oxidation; biofilm; biomass; correlation; decline; lactones; microbial communities; nitrogen; quorum sensing; temperature; water;     Show all 12 Subjects
Abstract:
... A 1 L lab-scale anaerobic ammonium oxidation (anammox) biofilm reactor with nitrogen loading rate of 0.11 g/L d was run for 110 days with the operation temperature declining from 36 °C to 15 °C. The total inorganic nitrogen removal efficiency showed a reduction from 80% to 66%, when the temperature declined from 36 °C to 15 °C. N-acyl-ₗ-homoserine lactones (AHLs) concentrations, especially C8-HSL ...
DOI:
10.1016/j.chemosphere.2020.127602

6. Nitrogen removal and mechanism of an extremely high-ammonia tolerant heterotrophic nitrification-aerobic denitrification bacterium Alcaligenes faecalis TF-1

Author:
Qian Zhang; Yunan Zhu; Chunbo Yuan; Chu Zhang; Minglei Cui; Tiantao Zhao
Source:
Bioresource technology 2022 v.361 pp. 127643
ISSN:
0960-8524
Subject:
nitrifying bacteria,   etc   ; Alcaligenes faecalis; ammonium nitrogen; carbon; denitrification; electrophoresis; landfills; leachates; nitrogen; salinity; salt tolerance; sodium citrate; technology;     Show all 13 Subjects
Abstract:
... A novel heterotrophic nitrifying bacterium with high salt and high ammonia nitrogen tolerance, Alcaligenes faecalis TF-1, was isolated from the leachate of a landfill. The verification of nitrogen removal efficiency of different nitrogen sources and PCR amplification electrophoresis results showed that the HN-AD pathway of the strain TF-1 was NH₄⁺ → NH₂OH → NO → N₂O → N₂. The results of parameter ...
DOI:
10.1016/j.biortech.2022.127643

7. Quick start-up of partial nitrification in a novel anaerobic/ pulse washout (APW) process for treating municipal wastewater

Author:
Yulei Chi; Xinrui Zhang; Xuan Shi; Tong Ren; Xin Jin; Pengkang Jin
Source:
Journal of cleaner production 2021 v.285 pp. 124850
ISSN:
0959-6526
Subject:
nitrifying bacteria,   etc   ; activated sludge; carbon; denitrification; microbial communities; municipal wastewater; nitrification; nitrogen; nitrogen-fixing bacteria; polymers; sewage; wastewater treatment;     Show all 12 Subjects
Abstract:
... This study proposed a novel anaerobic/pulse washout (APW) process that can rapidly inhibit nitrite-oxidizing bacteria (NOB) and enrich ammonia-oxidizing bacteria (AOB) to achieve the quick start-up of partial nitrification in an activated sludge system. The results showed that the start-up period of partial nitrification in the APW process (20 days) was shorter than that in the process operated wi ...
DOI:
10.1016/j.jclepro.2020.124850

8. Cadmium-effect on performance and symbiotic relationship of microalgal-bacterial granules

Author:
Shulian Wang; Bin Ji; Baihui Cui; Yingqun Ma; Dabin Guo; Yu Liu
Source:
Journal of cleaner production 2021 v.282 pp. 125383
ISSN:
0959-6526
Subject:
nitrifying bacteria,   etc   ; Chlorococcum; Cyanobacteria; ammonium nitrogen; cadmium; chemical oxygen demand; granules; microalgae; nitrogen; polymers; proteins; sludge; symbiosis; toxicity; wastewater; wastewater treatment;     Show all 16 Subjects
Abstract:
... So far, the microalgal-bacterial granular sludge process has attracted growing interest as an emerging wastewater treatment technology. Cadmium ion (Cd²⁺) commonly found in wastewater is toxic to microorganisms, thus its effect on microalgal-bacterial granules was investigated in this study. Results showed that Cd²⁺ at the concentration above 1 mg/L could compromise the performances of microalgal- ...
DOI:
10.1016/j.jclepro.2020.125383

9. Comprehensive Transcriptomic Analysis of Heterotrophic Nitrifying Bacterium Klebsiella sp. TN-10 in Response to Nitrogen Stress

Author:
Dan Li; Mingquan Huang; Shirong Dong; Yao Jin; Rongqing Zhou; Chongde Wu
Source:
Microorganisms 2022 v.10 no.2 pp. -
ISSN:
2076-2607
Subject:
nitrifying bacteria,   etc   ; Klebsiella; amino acid metabolism; ammonium sulfate; carbohydrate metabolism; denitrification; gene expression regulation; nitrification; nitrogen; nitrogen cycle; sequence analysis; total nitrogen; transcriptomics;     Show all 13 Subjects
Abstract:
... Klebsiella sp. TN-10, a heterotrophic nitrifying bacterium, showed excellent nitrification ability under nitrogen stress. The strain was cultured under different nitrogen stress levels, including ammonium sulfate 0.5, 2.5, and 5 g/L, and samples were titled group-L, group-M, and group-H, respectively. In these three groups, the removed total nitrogen was 70.28, 118.33, and 157.18 mg/L after 12 h o ...
DOI:
10.3390/microorganisms10020353

10. Production performance, inorganic nitrogen control and bacterial community characteristics in a controlled biofloc-based system for indoor and outdoor super-intensive culture of Litopenaeus vannamei

Author:
Wujie Xu; Yu Xu; Haochang Su; Xiaojuan Hu; Yunna Xu; Zhuojia Li; Guoliang Wen; Yucheng Cao
Source:
Aquaculture 2021 v.531 pp. 735749
ISSN:
0044-8486
Subject:
nitrifying bacteria,   etc   ; Litopenaeus vannamei; bacterial communities; biofloc technology; environmental factors; molasses; nitrite nitrogen; nitrogen; postlarvae; shrimp; shrimp culture; sodium carbonate; survival rate; tanks;     Show all 14 Subjects
Abstract:
... The aim of this study was to develop a commercial-scale biofloc-based tank system for shrimp culture in an efficient and environmental-friendly way. Eight independent and identical tanks (6 m/length × 6 m/width × 1 m/height, water volume of 30 m³) were randomly selected and prepared for the trial: four were from indoor and other four from outdoor. A complete production trial for super-intensive cu ...
DOI:
10.1016/j.aquaculture.2020.735749

11. Biosynthesis of hydrazine from ammonium and hydroxylamine using an anaerobic ammonium oxidizing bacterium

Author:
Mamoru Oshiki; Koshiro Yamada; Itsuki Kato; Kento Okoshi; Toshiro Imai; Takashi Yamaguchi; Nobuo Araki
Source:
Biotechnology letters 2020 v.42 no.6 pp. 979-985
ISSN:
0141-5492
Subject:
nitrifying bacteria,   etc   ; ammonium; anaerobic ammonium oxidation; biosynthesis; hydrazine; hydroxylamine; pH; temperature;     Show all 8 Subjects
Abstract:
... OBJECTIVES: To synthesize hydrazine (N₂H₄) from ammonium and hydroxylamine (NH₂OH) using an anaerobic ammonium oxidation (anammox) bacterium, Candidatus Kuenenia stuttgartiensis. RESULTS: K. stuttgartiensis cells were anoxically cultivated with the addition of ammonium (2 mM) and NH₂OH (1–100 mM) at pH 6–10.5, and 4–65 °C to examine the favorable cultivation conditions for N₂H₄ production. The inf ...
DOI:
10.1007/s10529-020-02865-6

12. Innovative start-up strategies for single-stage deammonification with conventional activated sludge: Results of a pilot-scale demonstration

Author:
Daehee Choi; Chulwoo Lee; Jinyoung Jung
Source:
Bioresource technology 2020 v.309 pp. 123423
ISSN:
0960-8524
Subject:
nitrifying bacteria,   etc   ; activated sludge; anaerobic ammonium oxidation; batch systems; inoculum; nitrogen;     Show all 6 Subjects
Abstract:
... This study investigated innovative start-up strategies of a pilot-scale sequencing batch reactor (SBR) for single-stage deammonification using activated sludge as the sole inoculum source. In 24 m³ aerobic oxidizing bacteria cultivation plant, nitrogen loss efficiency was suggested to be an indicator for determining duration of cultivation. In 12 m³ ANAMMOX (ANaerobic AMMonium OXidation) cultivati ...
DOI:
10.1016/j.biortech.2020.123423

13. Characterization of the marine aquaculture microbiome: A seasonal survey in a seabass farm

Author:
Roxane Roquigny; Julia Mougin; Cédric Le Bris; Maryse Bonnin-Jusserand; Périne Doyen; Thierry Grard
Source:
Aquaculture 2021 v.531 pp. 735987
ISSN:
0044-8486
Subject:
nitrifying bacteria,   etc   ; Bacteroidetes; DNA; Photobacterium; Vibrio; bacterial communities; biofilm; breeding; dysbiosis; fish farms; genes; infrastructure; mariculture; microbiome; monitoring; ribosomal RNA; species diversity; surveys; tanks; vibriosis; France;     Show all 21 Subjects
Abstract:
... Vibriosis is a recurrent disease in marine aquaculture environments. Monitoring the dynamics of bacterial populations in several compartments of the aquaculture infrastructure is of paramount importance to understand the occurrence of the disease. In the present study, the fish farm, located in the north of France, is a flow-through system where the tanks are supplied by two water inlets. Water fr ...
DOI:
10.1016/j.aquaculture.2020.735987

14. Insight into the microbial and genetic responses of anammox granules to spiramycin: Comparison between two different dosing strategies

Author:
Jing-Wu; Nian-Si Fan; Ye-Ying Yu; Yi-Jun He; Yi-Heng Zhao; Quan Zhang; Bao-Cheng Huang; Ren-Cun Jin
Source:
Journal of cleaner production 2020 v.258 pp. 120993
ISSN:
0959-6526
Subject:
nitrifying bacteria,   etc   ; Planctomycetes; anaerobic ammonium oxidation; genes; granules; microbial communities; nitrogen; spiramycin; wastewater;     Show all 9 Subjects
Abstract:
... The potential application of anaerobic ammonium oxidation (anammox) to treat antibiotic-containing wastewaters has attracted public attentions. The responses of anammox to a typical antibiotic (spiramycin, SPM) with different exposure strategies (elevating-concentration strategy in R₁ and repeated-exposure strategy in R₂) were evaluated on the aspects of general performance, microbial community an ...
DOI:
10.1016/j.jclepro.2020.120993

15. Insight into the short-term effect of fulvic acid on nitrogen removal performance and N-acylated-L-homoserine lactones (AHLs) release in the anammox system

Author:
Lingjie Liu; Min Ji; Fen Wang; Zhongke Tian; Tianyi Wang; Shuya Wang; Siyu Wang; Zhao Yan
Source:
Science of the total environment 2020 v.704 pp. 135285
ISSN:
0048-9697
Subject:
nitrifying bacteria,   etc   ; anaerobic ammonium oxidation; biomass; fulvic acids; lactones; nitrogen; polymers; quorum sensing;     Show all 8 Subjects
Abstract:
... Fulvic acid (FA) can serve as electron shuttles between bacteria and electron acceptors. It explored the short-term effect of FA dose on nitrogen removal performance and N-acylated-L-homoserine lactones (AHLs) release change in the anaerobic ammonium oxidation (anammox) system. The results demonstrated that the total inorganic nitrogen removal efficiency increased with the FA dosages from 0.5 mM t ...
DOI:
10.1016/j.scitotenv.2019.135285

16. Characteristics of sludge granulation and EPS production in development of stable partial nitrification

Author:
Xiangchen Li; Rui Du; Yongzhen Peng; Qiong Zhang; Jincheng Wang
Source:
Bioresource technology 2020 v.303 pp. 122937
ISSN:
0960-8524
Subject:
nitrifying bacteria,   etc   ; ammonium; batch systems; nitrification; nitrite nitrogen; nitrites; particle size; polymers; sludge;     Show all 9 Subjects
Abstract:
... In this study, sequencing batch reactor (SBR) and aerobic upflow sludge bed reactor (AeUSB) were used to investigate the effects of sludge granulation on establishing partial nitrification (PN) process and explore the potential mechanism. The particle size was positively related to the NO₂⁻-N accumulating performance, satisfactory nitrite accumulation rate (NAR) of 96.4% and 77.3% were obtained wi ...
DOI:
10.1016/j.biortech.2020.122937

17. Response of nitrogen removal performance, functional genes abundances and N-acyl-homoserine lactones release to carminic acid of anammox biomass

Author:
Lingjie Liu; Min Ji; Fen Wang; Zhao Yan; Zhongke Tian
Source:
Bioresource technology 2020 v.299 pp. 122567
ISSN:
0960-8524
Subject:
nitrifying bacteria,   etc   ; anaerobic ammonium oxidation; biomass; electron transfer; lactones; nitrate nitrogen; nitrogen; polymers;     Show all 8 Subjects
Abstract:
... Carminic acid (CA) can serve as a redox mediator and influence the electron transfer process. CA dosages of 0–5 mg/L were added to anaerobic ammonia oxidation (anammox) biomass. The results illustrated that CA not only reduced the inorganic nitrogen removal efficiency, but also decreased the nitrogen removal rate. The deterioration of nitrogen removal performance was due to the excess production o ...
DOI:
10.1016/j.biortech.2019.122567

18. Evaluating and modeling biological sulfur production in the treatment of sulfide‐laden streams containing ammonium

Author:
David Cueto; Mabel Mora; David Gabriel
Source:
Journal of chemical technology and biotechnology 2021 v.96 no.2 pp. 439-447
ISSN:
0268-2575
Subject:
nitrifying bacteria,   etc   ; aeration; ammonium; biological treatment; biotechnology; calibration; dissolved oxygen; effluents; flow; mathematical models; nitrification; nitrites; oxidation; oxygen; redox potential; specific growth rate; streams; sulfates; sulfides; sulfur; supply;     Show all 21 Subjects
Abstract:
... BACKGROUND: Biological treatment of effluents containing H₂S and ammonium are of great interest as both can trigger serious environmental problems when disposed of. The aim of this study was to optimize the production of biosulfur from the partial oxidation of sulfide in sulfide‐ and ammonium‐containing streams. Biological performance was evaluated under various aerating conditions and key kinetic ...
DOI:
10.1002/jctb.6558

19. Cultivation of anaerobic ammonium oxidizing bacteria (AnAOB) using different sewage sludge inoculums: process performance and microbial community analysis

Author:
Mohd W Mirza; Tinku C D'Silva; Khalid M Gani; Syed S Afsar; Rubia Z Gaur; Pravin K Mutiyar; Abid A Khan; Vasileios Diamantis; Beni Lew
Source:
Journal of chemical technology and biotechnology 2021 v.96 no.2 pp. 454-464
ISSN:
0268-2575
Subject:
nitrifying bacteria,   etc   ; Flavobacterium; activated sludge; ammonia; ammonium; anaerobic ammonium oxidation; batch systems; biomass; biotechnology; denitrification; inoculum; microbial communities; nitrites; nitrogen; phosphates; phosphorus; sewage sludge; sewage treatment; stoichiometry; temperature;     Show all 20 Subjects
Abstract:
... BACKGROUND: This study explores the feasibility of three different inoculum sources (anaerobic, aerobic, and anoxic sludge from conventional sewage treatment plants) together with the potential of biomass carrier for Anaerobic ammonium oxidation bacteria (anammox) cultivation. Fed‐batch reactors were operated with synthetic medium at different temperatures. RESULTS: The reactor inoculated with ana ...
DOI:
10.1002/jctb.6560

20. Insight into the impacts of organics on anammox and their potential linking to system performance of sewage partial nitrification-anammox (PN/A): A critical review

Author:
Jialin Li; Jianwei Li; Yongzhen Peng; Shuying Wang; Liang Zhang; Shenhua Yang; Shuai Li
Source:
Bioresource technology 2020 v.300 pp. 122655
ISSN:
0960-8524
Subject:
nitrifying bacteria,   etc   ; anaerobic ammonium oxidation; denitrification; energy efficiency; heterotrophic bacteria; metabolism; nitrogen; risk; sewage;     Show all 9 Subjects
Abstract:
... Partial nitrification-anammox (PN/A) is an energy-efficient process for nitrogen removal from sewage. The influent organics of sewage is usually pre-removed, reducing the risk for enriching anammox bacteria (AnAOB). However, recent studies demonstrate that optimum influent organics could improve nitrogen removal and operational stability of PN/A. Thus, the impact of organics on PN/A-based process ...
DOI:
10.1016/j.biortech.2019.122655