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Significance and Functions of Iron-Reduction in Methanogenic Microbial Ecosystem in Wetland Rice Field Soil.

Research Project

Project/Area Number 09680501
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Environmental dynamic analysis
Research InstitutionYAMAGATA UNIVERSITY

Principal Investigator

UEKI Atsuko  Facul. Agri., Yamagata Univ., Professor, 農学部, 教授 (60143088)

Co-Investigator(Kenkyū-buntansha) KASUBUCHI Tatsuaki  Facul. Agri., Yamagata Univ., Professor, 農学部, 教授 (00250960)
UEKI Katsuji  Facul. Agri., Yamagata Univ., Professor, 農学部, 教授 (10111337)
Project Period (FY) 1997 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥3,100,000 (Direct Cost: ¥3,100,000)
Fiscal Year 1999: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1998: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1997: ¥1,800,000 (Direct Cost: ¥1,800,000)
Keywordsgreenhouse effect / methanogens / wetland rice field / anaerobic bacteria / iron-reducing bacteria / rice plant / ferrous iron / flooded soil / メタン生成古細菌
Research Abstract

Iron-reduction is a key reaction in the process of reduction in flooded rice field soil. In this study, relationship between potential of methane-producing microbial activity and iron reduction in rice field soil was investigated and several isolates of iron-reducing bacteria were isolated from enrichment cultures which has been inoculated with soil of the flooded rice field.
1. Methane-producing microbial activity in soil of a rice field was determined throughout the year. Methane-producing activity increased after flooding of the field and decreased rapidly after mid-season drainage. Fe(II) content in the soil also increased after flooding, indicating the progress of the reduction in the soil. The Fe(II) content in soil changed in parallel with that of potential of methane-producing activity in soil and a significant and high correlation coefficient was obtained between the methane-producing activity and Fe(II) content in soil.
2. Enrichment cultures of iron-reducing bacteria of paddy soil were established with HィイD22ィエD2, acetate, and fumarate as electron donors. The enrichment culture which had been transferred by using HィイD22ィエD2 and fumarate as electron donors also reduced iron with formate, pyruvate, lactate, succinate, malate, ethanol, glutamate, and serine as electron donors as well as HィイD22ィエD2 and fumarate. Thus, it was shown that various compounds should be used as electron donors for iron-reduction in paddy soil.
3. Several strains of iron-reducing bacteria were isolated from the enrichment culture and utilization of electron donors and some other physiological characteristics were determined. These strains were facultatively anaerobic, Gram-negative and motile short-rods and reduced iron by using HィイD22ィエD2, pyruvate and serine as electron donors. Sequences of 16SrRNA gene of these strains were determined and it was shown that these isolates are classified to Proteobacteria γ subdivision and are closely related to the genus Aeromonas.

Report

(4 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (28 results)

All Other

All Publications (28 results)

  • [Publications] 加来伸夫: "水田土壌中のメタン生成微生物生態系の解析―各種細菌とメタン生成活性の水稲根および植物残渣上における分布―"環境科学会誌. 10巻. 51-62 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Ueki,A.: "Survival or moethanogens in air-dried paddy field soil and their heat-tolerance"Wat. Sci. Tech.. 36巻. 517-522 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Mowjood,M.I.M.: "Effect of convection in ponded Water on the thermal regime of a paddy field"Soil Sci.. 162巻. 583-587 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Mowjood,M.I.M.: "Dynamics of dissolved oxygen (DO) in ponded water of a paddy field"Soil Sci.plant Nutr.. 44巻. 405-413 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Mowjood,M.I.M.: "Heat and dissolved oxygen (DO) transfer phenomenon in ponded paddy soil"Soil Phys. Cond. Plant Grouth, Jpn. 79号. 41-47 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Kaku,N.: "Sample preparation for methanogenic activities of heterogeneous flooded rice soils"Microbes and Environ.. 14巻. 151-15* (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Ueki,A.: "Effects of organic matter application, temperature, and sunshine duration on seasonal and annual variations of methanogenic activity in wetland rice field soil"Soil Sci.plant Nutr.. 45巻. 811-823 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Ueki,A.: "Seasonal variations in vertical distributions of methanogenic activity and Fe(II) content and relationship between them in wetland rice field soil"Soil Sci.plant Nutr.. 46巻(印刷中). (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Kaku, N.: "Analysis of methanogenic microbial ecosystem in paddy field soil - Distributions of various bacteria and methanogenic activity of rice roots and plant residue. (in Japanese with English summary)"Environ. Sci.,. 10. 51-62 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Ueki, A.: "Survival of methanogens in air-dried paddy field soil and their heat-tolerance."Wat. Sci. Tech.. 36. 517-522 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Mowjood, M.I.M.: "Effect of convection in ponded water on the thermal regime of a paddy field."Soil Sci.. 162. 583-587 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Mowjood, M.I.M.: "Dynamics of dissolved oxygen (DO) in ponded water of pa paddy field."Soil Sci. Plant Nutr.. 44. 405-413 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Mowjood, M.I.M.: "Heat and dissolved oxygen (DO) transfer phenomenon in ponded paddy soil."Soil Phys. Cond. Plant Growth, Jpn.. 79. 41-47 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Kaku, N.: "Sample preparation for methanogenic activities of heterogeneous flooded rice soils."Microbes and Environ.. 14. 151-156 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Ueki, A.: "Effects of organic matter application, temperature, and sunshine duration on seasonal and annual variations of methanogenic activity in wetland rice field soil."Soil Sci. Plant Nutr.. 45. 811-823 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Ueki, A.: "Seasonal variations in vertical distributions of methanogenic activity and Fe(II) content and relationship between them in wetland rice field soil."Soil Sci. Plant Nutr.. 46(2) (in press). (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Kaku,N,A.Ueki,and K.Ueki: "Sample preparation for methanogenic activities of heterogenecus flooded rice soils."Microbos and Environ.. 14. 151-156 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Ueki,A.et al.: "Effects of organic matter application,temperature,and sunshine duration on seasonal and annual variations of methanogenic activity in wetland rice field soil."Soil Sei.Plant Nutr.. 45. 811-823 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Ueki,A.et al.: "Seasonal variations in vertical distributions of methanogenic activity and Fe(II) content and relationship between them in wetland rice field soil."Soil Sei.Plant Nutr.. 46(2). in press (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Mowjood,M.I.M.,and T.Kasubuchi,et.al: "Dynamics of dissolved oxygen (DO) in ponded water of a paddy field."Soil Sei.Piant Nutr.. 44. 405-413 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] Mowjood,M.I.M.,and T.Kasubuchi: "Heat and dissolved oxygen (DO) transfer pheomenon in ponded paddy soil."Soil Phys.Cond.Plant Growth,Jpn. 79. 41-47 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] 野中 拓、上木厚子ら: "水田土壌中の嫌気性細菌…培養可能な嫌気性細菌数と好気性細菌数の各種培地における比較" 日本土壌肥料学会講演要旨集. 44. 40 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 服部千晶、上木厚子ら: "水田土壌中におけるメタン生成活性(その4)…基質添加条件下における活性の季節変化" 日本土壌肥料学会講演要旨集. 44. 40 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 上木厚子、野中拓ら: "無酸素および低酸素気相条件での水田土壌中の細菌の計数" 日本微生物生態学会講演要旨集. 14. 20 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 佐藤敦哉、上木厚子ら: "水田土壌中の嫌気性細菌の生理的性質とその分子系統解析…水稲根および根圏土壌からの分離菌株について" 日本微生物生態学会講演要旨集. 14. 38 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 加来伸夫: "水田土壌中におけるメタン生成微生物生態系の解析-各種細菌とメタン生成活性の水稲根および植物残渣上における分布-" 環境科学会誌. 10巻. 51-62 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Ueki,A.: "Survival of methanogens in air-dried paddy field soil and their heat-tolerance." Wat.Sci.Tech.36巻. 517-522 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Mowjood,M.I.M.: "Effect of convection in ponded water on the thermall regime of a paddy field ." Soil Sci.162巻. 583-587 (1997)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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