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首页> 外文期刊>European Journal of Soil Biology >Archaea are the predominant and responsive ammonia oxidizing prokaryotes in a red paddy soil receiving green manures
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Archaea are the predominant and responsive ammonia oxidizing prokaryotes in a red paddy soil receiving green manures

机译：Archaea是占氧化原核病的主要和响应性氨，接受绿色粪便的红色水稻土

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摘要

Application of green manures is an effective approach to optimizing N management in paddy soils. Nitrification is a key process in the N cycle and ammonia oxidization is the first and typically limiting step in nitrification. In this study, we investigated the changes of ammonium oxidizing prokaryotes after the application of green manure in a red paddy soil using pot experiments. The experiment included four treatments; milk vetch-rice, radish-rice, ryegrass-rice and winter fallow-rice. The nitrification potential was measured, and the abundance and community of amoA genes from ammonia-oxidizing archaea (AOA) and bacteria (AOB) were quantified. The results showed that the AOA to AOB ratios ranged from 7 to 80, and that the milk vetch treatment increased the abundances of AOA and AOB. The abundance of AOA showed negative correlations with nitrification potential and NH4+-N, and positive correlation with soil pH in the acidic red paddy soil. DNA sequence analyses revealed that the Nitrososphaera and Nitrosospira were the dominant clusters of AOA and AOB, respectively. The dominant clusters of AOA were significantly changed by utilization of green manures, especially radish. Partial least squares path modeling analysis showed that green manures exerted larger effects on the abundances of AOA than on AOB, and the community structure of AOA had the strongest effect on nitrification potential. The high abundance of AOA found in this study and their responsiveness to green manuring suggests that AOA are critically important for soil ammonia oxidation in these soils and more sensitive to green manuring than AOB.
机译：None

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  • 来源
    《European Journal of Soil Biology》 |2018年第2018期|共9页
  • 作者

    Gao Song-juan; Chang Dan-na; Zou Chun-qin; Cao Wei-dong; Gao Ju-sheng; Huang Jing; Bai Jin-shun; Zeng Nao-hua; Rees Robert M.; Thorup-Kristensen Kristian;

  • 作者单位

    Nanjing Agr Univ Coll Resources &

    Environm Sci Nanjing 210095 Jiangsu Peoples R China;

    Chinese Acad Agr Sci Key Lab Plant Nutr &

    Fertilizer Minist Agr Inst Agr Resources &

    Reg Planning Beijing 100081 Peoples R China;

    China Agr Univ Coll Resources &

    Environm Sci Ctr Resources Environm &

    Food Secur Key Lab Plant Soil Interact Minist Educ Beijing 100193 Peoples R China;

    Chinese Acad Agr Sci Key Lab Plant Nutr &

    Fertilizer Minist Agr Inst Agr Resources &

    Reg Planning Beijing 100081 Peoples R China;

    Chinese Acad Agr Sci Key Lab Plant Nutr &

    Fertilizer Minist Agr Inst Agr Resources &

    Reg Planning Beijing 100081 Peoples R China;

    Chinese Acad Agr Sci Key Lab Plant Nutr &

    Fertilizer Minist Agr Inst Agr Resources &

    Reg Planning Beijing 100081 Peoples R China;

    Chinese Acad Agr Sci Key Lab Plant Nutr &

    Fertilizer Minist Agr Inst Agr Resources &

    Reg Planning Beijing 100081 Peoples R China;

    Chinese Acad Agr Sci Key Lab Plant Nutr &

    Fertilizer Minist Agr Inst Agr Resources &

    Reg Planning Beijing 100081 Peoples R China;

    Scotlands Rural Coll SRUC West Mains Rd Edinburgh EH9 3JG Midlothian Scotland;

    Univ Copenhagen Dept Plant &

    Environm Sci DK-2630 Copenhagen Denmark;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 土壤生物学;
  • 关键词

    Green manure; Ammonia-oxidizing archaea; Nitrification potential; Driving factors; Red paddy soil;

    机译：绿色粪便;氨氧化archaea;硝化潜力;驱动因素;红色水稻土;

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