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The interactive effect of temperature and fertilizer types determines the dominant microbes in nitrous oxide emissions and the dicyandiamide efficacy in a vegetable soil

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SOIL ECOLOGY LETTERS 2024年第3期6卷 230213-230213页

作者： Xu, Xiaoya Liu, Haiyang Liu, Yaowei Lesueur, Didier Herrmann, Laetitia Di, Hongjie Tang, Caixian Xu, Jianming Li, Yong Zhejiang Univ Coll Environm & Resource Sci Zhejiang Prov Key Lab Agr Resources & Environm Hangzhou 310058 Peoples R China Shandong Normal Univ Coll Geog & Environm Jinan 250014 Peoples R China Ctr Cooperat Int Rech Agron Dev CIRAD UMR Eco & Sols Hanoi Vietnam Univ Montpellier UMR Inst Natl Rech Agr Alimentat & Environm INRAE Inst Rech Dev IRD Eco & SolsCIRADMontpellier SupAgro F-34060 Montpellier France Alliance Biodivers Int & Int Ctr Trop Agr CIAT Asia Hub Common Microbial Biotechnol Platform CMBP Hanoi Vietnam Deakin Univ Fac Sci Engn & Built Environm Sch Life & Environm Sci Burwood Vic 3125 Australia Chinese Acad Trop Agr Sci Rubber Res Inst Danzhou 571737 Peoples R China La Trobe Univ La Trobe Inst Sustainable Agr & Food Dept Anim Plant & Soil Sci Bundoora Vic 3086 Australia

Dicyandiamide decreased N2O emissions even under 40 degrees *** oxidizers and nirS were well adapted to 40 degrees C in manured *** nirK tolerated high temperature better in urea than manure *** to nosZII, nosZI adapted to all temperature regardless of ***-denitrifier dominated N2O emissions at high temperature in fertilized *** waves associated with global warming and extreme climates would arouse serious consequences on nitrogen (N) cycle. However, the responses of the functional guilds to different temperatures, especially high temperature and the cascading effect on N2O emissions remain unclear. An incubation study was conducted to examine the effect of different temperatures (20 degrees C, 30 degrees C, and 40 degrees C) and fertilizer types (urea and manure) on N2O-producers and N2O-reducers, as well as the efficacy of dicyandiamide (DCD) on N2O emissions in a vegetable soil. Results showed that ammonia oxidizers and nirS-type denitrifiers were well adapted to high temperature (40 degrees C) with manure application, while the fungal nirK-denitrifiers had better tolerance with urea application. The nosZ clade I microbes had a strong adaptability to various temperatures regardless of fertilization type, while the growth of nosZ clade II group microbes in non-fertilized soil (control) were significantly inhibited at higher temperature. The N2O emissions were significantly decreased with increasing temperature and DCD application (up to 60%, even at 40 degrees C). Under high temperature conditions, fungal denitrifiers play a significant role in N-limited soils (non-fertilized) while nirS-type denitrifiers was more important in fertilized soils in N2O emissions, which should be specially targeted when mitigating N2O emissions under global warming climate.

关键词： nitrogen fertilizer microorganisms nitrification inhibitor bacteria archaea fungi AMMONIA-OXIDIZING BACTERIA N2O EMISSIONS nitrification INHIBITOR heterotrophic nitrification NICHE DIFFERENTIATION ARCHAEA GRASSLAND COMMUNITY GROWTH DEnitrification

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Simultaneous nitrification and denitrification conducted by Halomonas venusta MA-ZP17-13 under low temperature conditions

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Acta Oceanologica Sinica 2021年第9期40卷 94-104页

作者： Guizhen Li Qiliang Lai Guangshan Wei Peisheng Yan Zongze Shao School of Environment Harbin Institute of TechnologyHarbin 150090China Key Laboratory of Marine Genetic Resources Third Institute of OceanographyMinistry of Natural ResourcesXiamen 361005China State Key Laboratory Breeding Base of Marine Genetic Resources Xiamen 361005China Fujian Key Laboratory of Marine Genetic Resources Xiamen 361005China Sourthem Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519080China

nitrification is a key step in the global nitrogen *** with autotrophic nitrification,heterotrophic nitrification remains poorly *** this study,Halomonas venusta MA-ZP17-13,isolated from seawater in shrimp aquaculture (Penaeus vannamei),could simultaneously undertake nitrification and *** the initial ammonium concentration at 100 mg/L,the maximum ammonium-nitrogen removal rate reached98.7%under the optimal conditions including C/N concentration ratio at 5.95,p H at 8.93,and Na Cl at 2.33%.The corresponding average removal rate was 1.37 mg/(L·h)(according to nitrogen) in 3 d at 11.2℃.By whole genome sequencing and analysis,nitrification-and denitrification-related genes were identified,including ammonia monooxygenase,nitrate reductase,nitrite reductase,nitric oxide dioxygenase and nitric oxide synthase;while no gene encoding hydroxylamine oxidase was identified,it implied the existence of a novel nitrification pathway from hydroxylamine to *** results indicate heterotrophic bacterium *** MA-ZP17-13 can undertake simultaneous nitrification and denitrification at low temperature and has potential for NH_(4)^(+)-N/NH_(3)-N removal in marine aquaculture systems.

关键词： Halomonas heterotrophic nitrification denitrification ammonia oxidization ammonia removal

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Isolation and Characterization of heterotrophic Nitrifying Strain W1

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Chinese Journal of Chemical Engineering 2012年第5期20卷 995-1002页

作者：吕永康王荀刘博凯刘玉香杨晓华 Key Laboratory of Coal Science and Technology Taiyuan University of Technology Engineering&the Built Environment(EBE) University of Cape Town College of Environmental Science and Engineering Taiyuan University of Technology

In a high concentration substrate medium, a heterotrophic bacterium with high removal efficiency of ammonium, named W1, was isolated from activated sludge of coking wastewater treatment facility. The bacterium was Gram-negative, rod-shaped, and identified preliminarily as Alcaligenes sp. according to its morphological and physiological properties and its 16S rRNA gene sequence analysis. In the high concentration ammonium medium (400 mg·L 1 4 NH -N), the effects of C source, N source, C/N ratio and initial pH of medium on ammonium removal were investigated in order to determine the optimal condition for strain W1. The maximum ammonium removal was around 95% in 4 days in an improved medium. The production of N 2 gas was examined in a closed system that was full of pure oxygen at the beginning. N 2 gas was detected in the system after 4 days of cultivation, which further testified that strain W1 has heterotrophic nitrification and aerobic denitrification abilities simultaneously.

关键词： heterotrophic nitrification aerobic de-nitrification high concentration ammonium Alcaligenes sp.

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Isolation and Characterization of a New heterotrophic Nitrifying Bacillus sp. Strain

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Biomedical and Environmental Sciences 2007年第6期20卷 450-455页

作者： YAN LIN HAI-NAN KONG YI-LIANG HE BIN-BIN LIU YUHIE INAMORI LI YAN School of Environmental Science and Engineering Shanghai Jiaotong University Shanghai 200240 China Department of Biotechnology Shanghai Jiaotong University Shanghai 200240 China National Institute for Environmental Studies 16-2 Onogawa Tsukuba 305-8506 Ibaraki Japan

Objective To characterize the heterotrophic nitrifying bacteria. Methods The bacteria were isolated from membrane bioreactor for treating synthetic wastewater using the method newly introduced in this study. Fluorescence in situ hybridization （FISH） was used to validate the nonexistence of autotrophic ammonia oxidizers and nitrite oxidizers. Batch tests were carried out to investigate the capability of heterotrophic nitrification by the pure culture. Phylogenetic analysis of the pure culture was performed. Results A heterotrophic nitrifier, named Bacillus sp. LY, was newly isolated from the membrane bioreactor system in which the efficiency of TN removal was up to 80%. After 24-day, incubation, the removal efficiency of COD by Bacillus sp. LY was 71.7 %. The ammonium nitrogen removal rate after assimilation nearly ceased by Bacillus sp. LY was 74.7% The phylogenetic tree of Bacillus sp. LY and the neighbouring nitrifiers were given. Conclusions The batch test results indicate that Bacillus sp. LY can utilize the organic carbon as the source of assimilation when it grows on glucose and ammonium chloride medium accompanying the formation of oxidized-nitrogen. It also can denitrify nitrate while nitrifying. Bacillus sp. LY may become a new bacterial resource for heterotrophic nitrification and play a bioremediation role in nutrient removal.

关键词： 16S rDNA Aerobic denitrification Bacillus heterotrophic nitrification Phylogenetic analysis

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Isolation and characterization of heterotrophic nitrifying bacteria in MBR

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Journal of Environmental Sciences 2005年第4期17卷 589-592页

作者： LINYan HEYi-liang KONGHai-nan LIUBin-bin LIYan INAMONYuhei SchoolofEnvironmentalScienceandEngineering ShanghaiJiaotongUniversityShanghai200240China. DepartmentofBiotechnology ShanghaiJiaotongUniversityShanghai200240China NationalInstituteforEnvironmentalStudies16-20nogawa.Tsukuba IbarakiJapan）

The study presented the method for isolating the heterotrophic nitrifiers and the characterization of heterotrophic nitrification. Continuous tests via a membrane bioreactor (MBR) were operated under the controlled conditions to proliferate the nitrifiers. heterotrophic nitrifying bacteria were isolated from the system in which the efficiency of total nitrogen(TN) removal was up to 80%. Since no autotrophic ammonium and nitrite oxidizers could be detected by fluorescence in situ hybridization(FISH), oxidized-N production was unlikely to be catalyzed by autotrophic nitrifiers during the heterotrophic nitrifiers' isolation in this study. The batch test results indicate that the isolated heterotrophic bacteria were able to nitrify. After 3 weeks incubation, the efficiencies of the COD removal by the three isolated bacterial strains B1, B2, and B3 were 52 6%, 71 7%, and 77 7%, respectively. The efficiencies of the TN removal by B1, B2, and B3 were 35 6%, 61 2% and 68 7%, respectively.

关键词： membrane bioreactor(MBR) simultaneous nitrification and denitrification(SND) heterotrophic nitrification aerobic denitrification

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Nitrapyrin effectiveness in reducing nitrous oxide emissions decreases at low doses of urea in an Andosol

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Pedosphere 2021年第2期31卷 303-313页

作者： Mayela MONGE-MUÑOZ Segundo URQUIAGA Christoph MÜLLER Juan Carlos CAMBRONEROHEINRICHS Mohammad ZAMAN Cristina CHINCHILLA-SOTO Azam BORZOUEI Khadim DAWAR Carlos E.RODRÍGUEZ-RODRÍGUEZ Ana Gabriela PÉREZ-CASTILLO Environmental Pollution Research Center(CICA) University of Costa RicaMontes de Oca 11501(Costa Rica) Embrapa Agrobiology Rod.BR 465km 7SeropédicaRJCEP 23891-000(Brazil) Institute of Plant Ecology Justus Liebig University GiessenHeinrich-Buff Ring 26Giessen 35392(Germany) School of Biology and Environmental Science University College DublinBelfieldDublin 4(Ireland) Soil and Water Management&Crop Nutrition Section Joint FAO/IAEA Division of Nuclear Techniques in Food and AgricultureDepartment of Nuclear Sciences and ApplicationsInternational Atomic Energy AgencyVienna International CentreVienna 1400(Austria) Nuclear Agriculture Research School Nuclear Science and Technology Research Institute(NSTRI)Karaj ***(Iran) Department of Soil and Environmental Sciences University of AgriculturePeshawar 25000(Pakistan)

In the tropics,frequent nitrogen(N)fertilization of grazing areas can potentially increase nitrous oxide(N_(2)O)*** application of nitrification inhibitors has been reported as an effective management practice for potentially reducing N loss from the soil-plant system and improving N use efficiency(NUE).The aim of this study was to determine the effect of the co-application of nitrapyrin(a nitrification inhibitor,NI)and urea in a tropical Andosol on the behavior of N and the emissions of N_(2)O from autotrophic and heterotrophic nitrification.A greenhouse experiment was performed using a soil(pH 5.9,organic matter content 78 g kg^(-1),and N 5.6 g kg^(-1))sown with Cynodon nlemfuensis at 60%water-filled pore space to quantify total N_(2)O emissions,N_(2)O derived from fertilizer,soil ammonium(NH_(4)^(+))and nitrate(NO_(3)^(-)),and *** study included treatments that received deionized water only(control,NI).No significant differences were observed in soil NH_(4)^(+)content between the UR and UR+NI treatments,probably because of soil mineralization and NO_(3)^(-)produced by heterotrophic nitrification,which is not effectively inhibited by *** 56 d,N_(2)O emissions in UR(0.51±0.12 mg N_(2)O-N concluded that the soil organic N mineralization and heterotrophic nitrification are the main processes of NH_(4)^(+)and NO_(3)^(-)***,it was found that N_(2)O emissions were partially a consequence of the direct oxidation of the soil's organic N via heterotrophic nitrification coupled to ***,the results suggest that nitrapyrin would likely exert significant mitigation on N_(2)O emissions only if a substantial N surplus exists in soils with high organic matter content.

关键词： autotrophic nitrification heterotrophic nitrification mineral N ^(15)N tracer nitrification inhibitor tropical grass

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Isolation and phylogenetic analysis of heterotrophic nitrobacteria

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Journal of Harbin Institute of Technology(New Series) 2008年第6期15卷 790-793页

作者：苏俊峰马放郭静波侯宁高珊珊王弘宇 School of Municipal and Environmental Engineering Harbin Institute of Technology School of Environmental and Municipal Engineering Xi'an University of Architecture and Technology Dept.of Municipal Engineering Wuhan University

A method about the isolation of heterotrophic nitrosobactria and the characteristics of heterotrophic nitrosobactria were *** can be seen from the fluorescence in situ hybridization results of the bio-membrane sample from the bio-ceramic reactor,the spots of green nitrosobacteria are obviously more than those of orange *** heterotrophic nitrobacteria were isolated from the bio-ceramic *** sequencing 16SrDNA and establishing the phylogenic tree,they were identified physiologically and biochemically as Pseudomonas sp..After 12 d,the COD removal efficiency of wgy55 and wgy68 were 45.03% and 50.85%,the NH4-N removal efficiency of them were 80.12% and 85.93%,and the TN removal efficiency of them were 69.71% and 64.7%.The final concentration of NO2-N of wgy55 and wgy68 was 0.753 mg/L and 0.601 mg/L,and that of NO3-N was 3.21 mg/L and 3.38 mg/*** results show that wgy55 and wgy68 have the capability of nitrification and they are heterotrophic nitrobacteria.

关键词： bio-ceranfic reactor fluorescence in situ hybridization heterotrophic nitrification

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Isolation and Characteristics of New heterotrophic Nitrifying Bacteria

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Journal of Donghua University(English Edition) 2007年第4期24卷 546-549,553页

作者：苏俊峰马放王弘宇郭静波候宁李维国魏利 School of Municipal and Environmental Engineering Harbin Institute of Technology Department of Municipal Engineering Wuhan University

The study presented the method for isolating the heterotrophic nitrifiers and the characterization of heterotrophic nitrification. When influent Ammonia nitrogen concentration was 42. 78 - 73. 62 mg/L. The average ammonia nitrogen removal rate was 81.32% from the bioceramics reactor. Sodium acetate and ammonium chloride were used as carbon and nitrogen source. The COD removal rates by microorganisms of strain wgy21 and wgy36 were 56.1% and 45.45%, respectively. The TN removal rates by microorganisms of strain wgy21 and wgy36 were 65.85% and 67. 98%, respectively. At the same time, the concentration of ammonium nitrogen was with the removal rates of 75.25% and 84.96%, and it also had the function of producing NO2 - N. Sodium acetate and sodium nitrite were used as carbon and nitrogen source. Through the 12 days of the aerobic culture, the COD femoral rates by microorganisms of strain wgy21 and wgy36 were 29.25% and 22.08%, respectively. NO2 -N concentration decreased slowly. Comparison, similarity of wgy21 and many Acinetobacter sp. ≥99%, similarity of wgy36 and many Acinetobacter sp. ≥99%. Refer to routine physiologicalbiochemical characteristic determination, further evidences showed that wgy21 and wgy36 belong to Acinetobacter sp., respectively.

关键词： bio-ceramic reactor isolation and identification heterotrophic nitrification nitrifying characteristic

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