Enhanced Growth of Acidocella facilis and Related Acidophilic Bacteria at High Concentrations of Aluminum
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概要
- 論文の詳細を見る
Acidophilic chemoorganotrophic bacteria of the genus Acidocella, Acidiphilium, and Acidobacterium were tolerant to concentrations of monomeric aluminum ion (Al^<3+>) of up to 100 mM in an acid medium of pH 3.5 or less. Furthermore, their growth was remarkably enhanced by the presence of aluminum. The maximum amount of Al absorbed was 2.02 mg★g dry cell wt^<-16gt; for Acidocella facilis. Aluminum phosphate as well as aluminum sulfate among aluminum chemicals tested provided for the most luxuriant growth of this bacterium, whereas aluminum acetate and aluminum lactate had inhibitory effects on growth. The enhanced growth seemed to be caused by a chemical buffering action of the aluminum, but could not be explained merely by an alleviation of H^+ stress or by the scavenging of growth-inhibitory organic acids excreted. The reasons why the acidophiles are genuinely aluminophilic as well as aluminotolerant still remain to be elucidated. Considering that monomeric Al^<+3> is dominant under strongly acid conditions, the possible cultivation of acidophiles at a pH below 4 affords a useful in vitro model system to probe the aluminum toxicity of plants as well as aluminum-microorganism interactions.
- 日本微生物生態学会の論文
著者
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YAMANAKA Shigeru
Central Research Laboratories, Ajinomoto Co., Inc.,
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WAKAO NORIO
Department of Agro-bioscience, Faculty of Agriculture, Iwate University
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Hiraishi A
Toyohashi Univ. Technol. Aichi Jpn
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Hiraishi Akira
Nibb
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Hiraishi Akira
Tokyo Research Laboratory Konishi Co. Ltd. :(present Address)institute Of Applied Microbiology Unive
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Yamanaka Shigeru
Central Research Laboratories Ajinomoto Co. Inc.
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Yamanaka Shigeru
Faculty Of Txtile Science And Technology Shishu University
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Wakao Norio
Department Of Agro-bioscience Faculty Of Agriculture Iwate University
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Wakao N
Department Of Agro-bioscience Faculty Of Agriculture Iwate University
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Wakao Norio
Laboratory Of Bioscience And Technology Faculty Of Agriculture Iwate University
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Jojima Yasuko
Microbiology Group Institute Of Life Sciences Ajinomoto Co. Inc.
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YASUDA TSUYOSHI
Department of Agro-bioscience, Faculty of Agriculture, Iwate University
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JOJIMA YASUKO
Central Research Laboratories of Ajinomoto Co.
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HIRAISHI AKIRA
Central Research Laboratories of Ajinomoto Co.
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Yasuda Tsuyoshi
Department Of Agro-bioscience Faculty Of Agriculture Iwate University
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Yamanaka S
Faculty Of Textile Science And Technology Shinshu University
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Yamanaka Shigeru
Microbiology Group Institute Of Life Sciences Ajinomoto Co. Inc.:experimental Farm Faculty Of Textil
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Hashizume Akiko
Department Of Bioscience And Biotechnology Faculty Of Agriculture Shinshu University
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Yamanaka Shigeru
Basic Research Laboratories Central Research Laboratories Ajinomoto Co. Inc.
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Jojima Yasuko
Microbiology Group, Institute of Life Sciences, Ajinomoto Co., Inc.
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