Significance of Lipoquinones as Quantitative Biomarkers of Bacterial Populations in the Environment
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概要
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The direct total count of bacteria and the concentration of isoprenoid quinones were measured in 82 samples from different aquatic and soil environments. The geometric mean of the total count (TC)/total quinine (TQ) ratios obtained with different environments ranged from 1.1 to 2.2x10^3 cells fmol^<-1>. When the concentration of the total respiratory quinone (TRQ), I.e., ubiquinones and menaquinones, were taken into account, the geometric mean of the TC/TRQ ratios fell into a range of 2.2 to 4.1x10^3 cells fmol^<-1>. A high positive correlation was noted between TC and TQ (γ^2=0.9864) or TRQ (γ^2=0.9990). Based on the relationship between TC and TRQ, 1 nmol of the total quinone was estimated to be equivalent to 2.5x10^9 cells of bacteria on average. These results indicate that the concentration of the respiratory quinones can be used as a good measure of bacterial counts and biomass in the environment.
- 日本微生物生態学会の論文
著者
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HIRAISHI AKIRA
Department of Ecological Engineering, Toyohashi University of Technology
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YOSHIDA NAOKO
Department of Ecological Engineering, Toyohashi University of Technology
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Narihiro Takashi
Department of Ecological Engineering, Toyohashi University of Technology
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Yoshida N
Toyohashi Univ. Toyohashi Jpn
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KAWAGISHI TOMOKI
Department of Ecological Engineering, Toychashi University of Technology
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Narihiro Takashi
Department Of Ecological Engineering Toyohashi University Of Technology
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Kawagishi Tomoki
Department Of Ecological Engineering Toyohashi University Of Technology
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Kawagishi Tomoki
Department Of Ecological Engineering Toychashi University Of Technology
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Kato K
Shizuoka Univ. Shizuoka Jpn
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IWASAKI MITSURU
Department of Ecological Engineering, Toyohashi University of Technology
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KATO KENJI
Institute of Geosciences, School of Science, Shizuoka University
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Narihiro T
Toyohashi Univ. Technol. Toyohashi Jpn
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Yoshida Naoko
Department Of Biomedical Sciences College Of Life Sciences Ritsumeikan University
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Hiraishi Akira
Department Of Biology Faculty Of Science Tokyo Metropolitan University
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Iwasaki M
Department Of Ecological Engineering Toyohashi University Of Technology
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Iwasaki Mitsuru
Department Of Ecological Engineering Toyohashi University Of Technology
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Kato Kenji
Institute of Chemistry, The University of Tsukuba
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YOSHIDA Naoko
Department of Biomedical Science, College of Life Sciences, Ritumeikan University
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