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THE ROLE OF IRON IN THE GROWTH OF MUSTY-ODOR PRODUCING CYANOBACTERIA IN THE LAKE ECOSYSTEM

Research Project

Project/Area Number 07680607
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 環境保全
Research InstitutionOKAYAMA UNIVERSITY

Principal Investigator

NAKASHIMA Susumu  RESEARCH INSTITUTE FOR BIORESOURCES,ASSOCIATE PROFESSOR, 資源生物科学研究所, 助教授 (60033122)

Co-Investigator(Kenkyū-buntansha) SHIBASAKA Mineo  OKAYAMA UNIVERSITY,RESEARCH INSTITUTE FOR BIORESOURCES,ASSISTANT PROFESSOR, 資源生物科学研究所, 助手 (60226165)
Project Period (FY) 1995 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1997: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1996: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1995: ¥1,300,000 (Direct Cost: ¥1,300,000)
KeywordsLAKE ECOSYSTEM / MUSTY-ODOR PRODUCING COMPOUNDS / CYANOBACTERIA / IRON / CHELATE COMPOUNDS / SIDEROPHORE / GEOSMIN / 2-METHYLISOBORNEOL
Research Abstract

In order to clarify the role of iron in the growth of musty-odor producing cyanobacteria, the effcts of iron on the growth of Oscillatoria tenuis, Anabaena macrospora, Anabaena spiroides, Phormidium tenue and Oscillatoria brevis were studied. A.macrospora, A.spiroides and O.brevis produce geosmin and O.tenuis and P.tenue produce 2-methylisoborneol (MIB). The growth of A.macrospora, A.spiroides and O.tenuis was suppressed at low levels of colloidal iron in the EDTA (chelating agent) -free medium. O.tenuis was found to require chelated and photoreducible iron for its growth. The effects of seven chelating agents on the growth of above musty-odor producing cyanobacteria were studied using laboratory cultures. O.tenuis, A.macrospora, A.spiroides, P.tenue and O.brevis grew well in the presence of EDTA,CyDTA,DTPA,EDDHA,HBED in the presence of 1 : 1 ratio of chelating agent to iron. However, the growth of O.tenuis, A.macrospora and A.spiroides was suppressed in the presence of large amounts of DTPA,EDDHA and HBED.
O.brevis was found to have the ability to utilize a wide variety of iron forms such as Fe-EDTA,Fe^<II> (BPDS) _3, spongy iron, powdery iron, Fe (III) -Desferrioxamine B (microbial siderophore) chelates, colloidal ferric hydroxides and more thermodynamically stable crystalline iron oxides. O.brevis was found to have stronger abilities for the chelation of Fe (III) and absorption of iron compared with O.tenuis, A.macrospora, A.spiroides and P.tenue. O.tenuis seems to have very specific requirements for the form of iron it can utilize for growth.

Report

(4 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • 1995 Annual Research Report
  • Research Products

    (18 results)

All Other

All Publications (18 results)

  • [Publications] 中島 進: "かび臭物質を産生するラン藻の増殖に及ぼす鉄の影響" 水処理技術. 36.1. 23-33 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 八木 正一・中島 進: "琵琶湖のかび臭-発生の経過と変遷-その2" 日本水処理生物学会誌. 31・3. 137-149 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 中島 進: "ラン藻類の重金属耐性機構に関する研究" 生物学に関する試験研究論叢. 10. 87-93 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 中島 進: "水道水の異臭味に関するラン藻類が利用できる鉄の形態について" 水. 38.12. 16-21 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 中島 進: "かび臭物質産生ラン藻Oscillatoria brevisとPhormidium tenueの増殖に及ぼす鉄錯体の影響" 水処理技術. 38・1. 29-40 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] NAKASHIMA,SUSUMU: "Effects of iron on the growth of musty-odor producing cyanobacteria" Water Purification and Liquid Wastes Treatment. 36 (1). 23-33 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] YAGI,MASAKAZU and NAKASHIMA,SUSUMU: "Musty-odor troubles in Lake Biwa : Occurence and developments of the troubles (2)" Japanese Journal of Water Treatment Biology. 31 (3). 137-149 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] NAKASHIMA,SUSUMU: "Investigations on the mechanism of the heavy-metal resistance of cyanobacteria" Collection of Treatise on the Study of Biology. 10. 87-93 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] NAKASHIMA,SUSUMU: "Investigations on the iron forms available to cyanobacteria producing musty-odor compounds in tap water" Water. 38 (12). 16-21 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] NAKASHIMA,SUSUMU: "Effects of iron chelates on the growth of musty-odor producing cyanobacteria Oscillatoria brevis and Phormidium tenue" Water Purification and Liquid Wastes Treatment. 38 (1). 29-40 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 中島 進: "水道水の異臭味に関わるラン藻が利用できる鉄の形態について" 水. 38・12. 16-21 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] 中島 進: "かび臭物質産生ラン藻Oscillatoria brevisとPhormidium terueの増殖に及ぼす鉄錯体の影響" 水処理技術. 38・1. 29-40 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 中島進: "水道水の異臭味に関わるラン藻が利用できる鉄の形態について" 水. 38・12. 16-21 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 中島進: "かび臭物質産生ラン藻Oscillatoria brevis とPhormidium tenueの増殖に及ぼす鉄錯体の影響" 水処理技術. 38・1. 29-40 (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] 中島 進: "かび臭物質を産生するラン藻の増殖に及ぼす鉄の影響" 水処理技術. 36. 23-33 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] S.Nakashima,et al.: "Effect of iron forms on the growth of musty-odor producing cyanobacteria." Water Osaka '95. 284-285 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 中島 進: "水道水の異臭味に関わるラン藻の増殖に及ぼす鉄の影響" しぶかわ. (印刷中). (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 八木 正一・中島 進: "琵琶湖のかび臭-発生の経過と変遷-その2" 日本水処理生物学会誌. 31. 137-149 (1995)

    • Related Report
      1995 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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