Immobilization of Mn(II) Ions by a Mn-Oxidizing Fungus Paraconiothyrium sp.-Like Strain at Neutral pHs

• Sasaki Keiko

  Department of Earth Resources Engineering, Kyushu University

• Matsuda Minoru

  Department of Earth Resources Engineering, Kyushu University

• Hirajima Tsuyoshi

  Department of Earth Resources Engineering, Kyushu University

• Takano Keishi

  Public Health Institute of Hokkaido

• Konno Hidetaka

  Graduate School of Engineering, Hokkaido University

書誌事項

タイトル別名

• Immobilization of Mn(II) Ions by a Mn-Oxidizing Fungus <I>Paraconiothyrium sp.-Like</I> Strain at Neutral pHs
• Immobilization of Mn 2 Ions by a Mn Oxidizing Fungus Paraconiothyrium sp Like Strain at Neutral pHs

抄録

A Mn-oxidizing fungus was isolated from a constructed wetland of Hokkaido (Japan), which is receiving the Mn-impacted drainage, and genetically and morphologically identified as Paraconiothyrium sp.-like strain. The optimum pHs were 6.45–6.64, where is more acidic than those of previously reported Mn-oxidizing fungi. Too much nutrient inhibited fungal Mn-oxidation, and too little nutrient also delayed Mn oxidation even at optimum pH. In order to achieve the oxidation of high concentrations of Mn like mine drainage containing several hundreds g·m⁻³ of Mn, it is important to find the best mix ratio among the initial Mn concentrations, inoculumn size and nutrient concentration. The strain has still Mn-tolerance with more than 380 g·m⁻³ of Mn, but high Mn(II) oxidation was limited by pH control and supplied nutrient amounts. The biogenic Mn deposit was poorly crystallized birnessite. The strain is an unique Mn-oxidizing fungus having a high Mn tolerance and weakly acidic tolerance, since there has been no record about the property of the strain. There is a potentiality to apply the strain to the environmental bioremediation.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 47 (10), 2457-2461, 2006

  公益社団法人 日本金属学会

キーワード

• manganese-oxidizing fungus
• fungal deposition of manganese
• optimum pH
• manganese-tolerance

詳細情報

• CRID: 1390282679227119104
• NII論文ID: 10018310003
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.47.2457
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 8091599
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8091599
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/47/10/47_10_2457/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可