SEASONAL VARIATIONS IN NUMBER OF ACIDOPHILIC IRON-OXIDIZING BACTERIA AND IRON OXIDATION IN THE RIVER CONTAMINATED WITH ACID MINE WATER

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概要

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• Number of acidophilic iron-oxidizing bacteria, soluble iron, pH, and water temperature were measured seasonally at five sampling stations in the Akagawa River which is highly polluted by strongly acid mine water discharged from the abandoned Matsuo sulfur and iron-sulfide mine area. Other environmental variables of the river water were also determined (titratable acidity, dissolved oxygen, electrical conductivity, sulfate, aluminum, ammonia and nitrate-nitrogen, and phosphate). Distinct seasonal variations in the number of iron-oxidizing bacteria and ferric iron concentration were observed of the river water during the flow and were correlated with seasonal change in water temperature. Hydrogen ion concentration, dissolved oxygen, nutrients for microorganisms, such as, nitrogen and phosphate in the water of the main stream were judged to be not limited to iron oxidation or bacterial growth. Thus, water temperature was found to be a major environmental factor influencing on the activity of iron oxidation and on the growth of bacteria in the river.

• 社団法人日本土壌肥料学会の論文

著者

• Wakao Norio

  Laboratory Of Applied Microbiology Department Of Agricultural Chemistry Faculty Of Agriculture Iwate

• Shiota Hideo

  Laboratory Of Applied Microbiology Department Of Agricultural Chemistry Faculty Of Agriculture Iwate

• Sakurai Yonekichi

  Laboratory Of Applied Microbiology Department Of Agricultural Chemistry Faculty Of Agriculture Iwate

• HANADA Kazuo

  Laboratory of Applied Microbiology, Department of Agricultural Chemistry, Faculty of Agriculture, Iw

• Hanada Kazuo

  Laboratory Of Applied Microbiology Department Of Agricultural Chemistry Faculty Of Agriculture Iwate

関連論文

• Accumulation of Fe, Cr and Ni Metals inside Cells of Acidophilic Bacterium Acidiphilium rubrum that Produces Zn-Containing Bacteriochlorophyll a
• Metalloregulatory Properties of the ArsR and ArsD Repressors of Acidiphilium multivorum AIU 301
• Acid Resistance of Zn-Bacteriochlorophyll a from an Acidophilic Bacterium Acidiphilium rubrum
• Discovery of Natural Photosynthesis using Zn-Containing Bacteriochlorophyll in an Aerobic Bacterium Acidiphilium rubrum
• DISTRIBUTION OF ACIDOPHILIC IRON- AND SULPHUR-OXIDIZING BACTERIA IN A SULPHUR AND IRON SULPHIDE MINE
• SEASONAL VARIATIONS IN NUMBER OF ACIDOPHILIC IRON-OXIDIZING BACTERIA AND IRON OXIDATION IN THE RIVER CONTAMINATED WITH ACID MINE WATER
• MICROBIAL OXIDATION OF FERROUS IRON IN ACID MINE WATER AT SULFUR AND IRON-SULFIDE MINE

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