中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Active Autotrophic Ammonia-Oxidizing Bacteria in Biofilm Enrichments from Simulated Creek Ecosystems at Two Ammonium Concentrations Respond to Temperature Manipulation

文献类型:期刊论文

作者Avrahami, Sharon1,2; Jia, Zhongjun3,4; Neufeld, Josh D.5,6; Murrell, J. Colin6; Conrad, Ralf3; Kuesel, Kirsten1
刊名APPLIED AND ENVIRONMENTAL MICROBIOLOGY
出版日期2011-10-01
卷号77期号:20页码:7329-7338
ISSN号0099-2240
DOI10.1128/AEM.05864-11
通讯作者Kuesel, Kirsten(Kirsten.Kuesel@uni-jena.de)
英文摘要The first step of nitrification, the oxidation of ammonia to nitrite, is important for reducing eutrophication in freshwater environments when coupled with anammox (anaerobic ammonium oxidation) or denitrification. We analyzed active formerly biofilm-associated aerobic ammonia-oxidizing communities originating from Ammerbach (AS) and Leutra South (LS) stream water (683 +/- 550 [ mean +/- standard deviation] and 16 +/- 7 mu M NH(4)(+), respectively) that were developed in a flow-channel experiment and incubated under three temperature regimens. By stable-isotope probing using (13)CO(2), we found that members of the Bacteria and not Archaea were the functionally dominant autotrophic ammonia oxidizers at all temperatures under relatively high ammonium loads. The copy numbers of bacterial amoA genes in (13)C-labeled DNA were lower at 30 degrees C than at 13 degrees C in both stream enrichment cultures. However, the community composition of the ammonia-oxidizing bacteria (AOB) in the 13C-labeled DNA responded differently to temperature manipulation at two ammonium concentrations. In LS enrichments incubated at the in situ temperature (13 degrees C), Nitrosomonas oligotropha-like sequences were retrieved with sequences from Nitrosospira AmoA cluster 4, while the proportion of Nitrosospira sequences increased at higher temperatures. In AS enrichments incubated at 13 degrees C and 20 degrees C, AmoA cluster 4 sequences were dominant; Nitrosomonas nitrosa-like sequences dominated at 30 degrees C. Biofilm-associated AOB communities were affected differentially by temperature at two relatively high ammonium concentrations, implicating them in a potential role in governing contaminated freshwater AOB distributions.
收录类别SCI
WOS关键词GRADIENT GEL-ELECTROPHORESIS ; COMMUNITY STRUCTURE ; WASTE-WATER ; MESOPHILIC CRENARCHAEOTA ; NITROGEN LIMITATION ; NITRIFYING BACTERIA ; RELATIVE ABUNDANCE ; HEADWATER STREAMS ; TREATMENT PLANTS ; SOIL MICROCOSMS
WOS研究方向Biotechnology & Applied Microbiology ; Microbiology
WOS类目Biotechnology & Applied Microbiology ; Microbiology
语种英语
WOS记录号WOS:000295836700032
出版者AMER SOC MICROBIOLOGY
URI标识http://www.irgrid.ac.cn/handle/1471x/2558907
专题南京土壤研究所
通讯作者Kuesel, Kirsten
作者单位1.Univ Jena, Inst Ecol Limnol Aquat Geomicrobiol, D-07743 Jena, Germany
2.Technion Israel Inst Technol, Dept Environm Water & Soil Engn, IL-32000 Haifa, Israel
3.Max Planck Inst Terr Microbiol, D-35043 Marburg, Germany
4.Chinese Acad Sci, State Key Lab Soil & Sustainable Agr, Inst Soil Sci, Nanjing 21008, Jiangsu Provinc, Peoples R China
5.Univ Waterloo, Dept Biol, Waterloo, ON N2L 3G1, Canada
6.Univ Warwick, Sch Life Sci, Coventry CV4 7AL, W Midlands, England
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Avrahami, Sharon,Jia, Zhongjun,Neufeld, Josh D.,et al. Active Autotrophic Ammonia-Oxidizing Bacteria in Biofilm Enrichments from Simulated Creek Ecosystems at Two Ammonium Concentrations Respond to Temperature Manipulation[J]. APPLIED AND ENVIRONMENTAL MICROBIOLOGY,2011,77(20):7329-7338.
APA Avrahami, Sharon,Jia, Zhongjun,Neufeld, Josh D.,Murrell, J. Colin,Conrad, Ralf,&Kuesel, Kirsten.(2011).Active Autotrophic Ammonia-Oxidizing Bacteria in Biofilm Enrichments from Simulated Creek Ecosystems at Two Ammonium Concentrations Respond to Temperature Manipulation.APPLIED AND ENVIRONMENTAL MICROBIOLOGY,77(20),7329-7338.
MLA Avrahami, Sharon,et al."Active Autotrophic Ammonia-Oxidizing Bacteria in Biofilm Enrichments from Simulated Creek Ecosystems at Two Ammonium Concentrations Respond to Temperature Manipulation".APPLIED AND ENVIRONMENTAL MICROBIOLOGY 77.20(2011):7329-7338.

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来源:南京土壤研究所

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