H_2O_2 Tolerance of Vibrio rumoiensis S-1^T is Attributable to the Cellular Catalase Activity(MICROBIAL PHYSIOLOGY AND BIOTECHNOLOGY)
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概要
- 論文の詳細を見る
The extraordinarily high level of H_2O_2 tolerance of Vibrio rumoiensis strain S-1^T when compared with the tolerance levels of strain S-4, a probable catalase-deficient derivative of strain S-1^T, was demonstrated by the introduction of 0-100 mM H_2O_2 during the mid-exponential growth phase. The contribution of catalase to the H_2O_2 tolerance was also demonstrated by comparing the catalase-deficient mutant Escherichia coli strain UM2 with a UM2 strain, harboring the plasmid pBSsa1, which carried the strain S-1^T catalase gene vktA. The decomposition rates of 23-25 mM H_2O_2 that was introduced in the culture fluids of strain S-1^T and E. coli UM2 harboring pBSsa1 corresponded to the calatase activities of the cells by spectrophotometric measurements. The presence of cell surface catalase was observed by immunoelectron microscopy, using an antibody for intracellular catalase in strain S-1^T. The high level of H_2O_2 tolerance of strain S-1^T was attributable to the catalase activity of the cells. Cell surface catalase is considered to contribute to the catalase activity of strain S-1^T cells.
- 社団法人日本生物工学会の論文
- 2008-07-25
著者
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Yumoto Isao
Research Institute of Genome-based Biofactory, National Institute of Advanced Industrial Science and
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Yumoto Isao
National Institute Of Advanced Industrial Science And Technology
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Morishita Nozomu
Res. Inst. Of Genome-based Biofactory National Inst. Of Advanced Industrial Sci. And Technol. (aist)
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Yumoto Isao
Research Institute Of Genome-based Biofactory National Institute Of Advanced Industrial Science And
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Okuyama Hidetoshi
Hokkaido Univ. Sapporo Jpn
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Okuyama Hidetoshi
Laboratory of Environmental Molecular Biology, Graduate School of Environmental Earth Science, Hokka
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Morita Naoki
National Institute of Advanced Industrial Science and Technology (AIST)
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Okuyama Hidetoshi
Laboratory Of Environmental Molecular Biology Graduate School Of Environmental Earth Science Hokkaid
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Okuyama Hidetoshi
Lab. Of Environmental Molecular Biology Graduate School Of Environmental Earth Sci. Hokkaido Univ. S
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Yumoto Isao
National Institute Of Advanced Industrial Science And Technology (aist)
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Okuyama H
Hokkaido Univ. Sapporo Jpn
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Ichise Nobutoshi
Research Institute of Genome-based Biofactory, National Institute of Advanced Industrial Science and
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Hirota Kikue
Research Institute of Genome-based Biofactory, National Institute of Advanced Industrial Science and
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Ichihashi Daisen
Research Institute of Genome-based Biofactory, National Institute of Advanced Industrial Science and
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Nodasaka Yoshinobu
Laboratory of Electron Microscopy, School of Dentistry, Hokkaido University
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Morita Naoki
Research Institute of Genome-based Biofactory, National Institute of Advanced Industrial Science and
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ICHIHASHI Daisen
Laboratory of Electron Microscopy, School of Dentistry, Hokkaido University
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Morishita Nozomu
Research Institute Of Genome-based Biofactory National Institute Of Advanced Industrial Science And
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Morita Naoki
Research Institute Of Genome-based Biofactory
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Ichise Nobutoshi
Laboratory Of Environmental Molecular Biology Graduate School Of Environmental Earth Science Hokkaid
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Nodasaka Yoshinobu
Laboratory Of Electron Microscopy School Of Dentistry Hokkaido University
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YUMOTO Isao
Hokkaido National Industrial Research Institute
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Hirota Kikue
Laboratory Of Electron Microscopy School Of Dentistry Hokkaido University
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Yumoto I
National Institute Of Advanced Industrial Science And Technology (aist)
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Yumoto Isao
Research Institute Of Biological Resources National Institute Of Advanced Industrial Science And Tec
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Ichihashi Daisen
Laboratory Of Electron Microscopy School Of Dentistry Hokkaido University
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