Pseudomonas aeruginosa as a Model Microorganism for Investigation of Chemotactic Behaviors in Ecosystem
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概要
- 論文の詳細を見る
Motile bacteria sense changes in the concentration of chemicals in environments and respond in a behavioral manner. This behavioral response is called chemotaxis. Bacterial chemotaxis can be viewed as an important prelude to metabolism, prey-predator relationships, symbiosis, infections, and other ecological interactions in biological communities. Genome analysis reveals that a large number of environmental motile bacteria possess a number of genes involved in chemosensing and chemotatic signal transduction. Pseudomonas aeruginosa has a very complex chemosensory system with more than 20 chemotaxis (che) genes in five distinct clusters and 26 chemoreceptor (methyl-accepting chemotaxis protein [mcp]) genes. Among the 26 MCPs of P. aeruginosa, nine have been identified as MCPs for amino acids, inorganic phosphate, oxygen, ethylene, and volatile chlorinated aliphatic hydrocarbons, whereas 3 MCPs were demonstrated to be involved in biofilm formation and biosynthesis of type IV pilus. Six che genes are essential for chemotactic responses, while genes in Pil-Chp cluster and Wsp cluster are involved in type IV pilus synthesis and twitching motility and biofilm formation, respectively. P. aeruginosa, with its complex chemotaxis system, is a better model microorganism for investigating ecological aspects of chemotaxis in environmental bacteria than Escherichia coli and Salmonella enterica serovar Typhimurium, which possess a relatively simpler chemotaxis system.
- 社団法人日本生物工学会の論文
- 2008-07-25
著者
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Ohtake Hisao
Department of Biotechnology, Graduate School of Engineering, Osaka University
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Kato Junichi
Department Of Cardiology Asahikawa Medical College
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KURODA Akio
Department of Molecular Biotechnology, Hiroshima University
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Ohtake H
Department Of Biotechnology Osaka University
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Ohtake Hisao
Department Of Biotechnology Graduate School Of Engineering Osaka University
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Ohtake H
Institute Of Applied Microbiology University Of Tokyo
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Ohtake Hisao
Institute Of Applied Microbiology The University Of Tokyo
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Ohtake Hisao
Department Of Fermentation Technology Hiroshima University
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Kato J
Department Of Molecular Biotechnology Hiroshima University
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TAKIGUCHI NOBORU
Department of Fermentation Technology, Hiroshima University
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Kim Hye‐eun
Department Of Molecular Biotechnology Hiroshima University
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Okumura H
Electrotechnical Lab. Ibaraki Jpn
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Kim Hye-Eun
Department of Molecular Biotechnology, Hiroshima University
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Ohtake Hisao
大阪大学 工学研究科生命先端工学専攻
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Kim Hye-eun
Department Of Molecular Biotechnology Hiroshima University
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Kuroda A
Department Of Molecular Biotechnology Hiroshima University
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Kuroda Akio
Department Of Molecular Biotechnology Hiroshima University
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Kato Junichi
Department Of Agricultural Biological Chemistry College Of Bioresource Sciences Nihon University
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Kato J
Department Of Chemical Engineering Faculty Of Engineering Shizuoka University
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Takiguchi Noboru
Department Of Molecular Biotechnology Hiroshima University
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Takiguchi Noboru
Department Of Biotechnology Graduate School Of Engineering Osaka University
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Kato Junichi
Department Of Agricultural Chemistry University Of Tokyo
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Kuroda Akio
Department Of Chemistry Faculty Of Science Nagoya University
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Okumura Hajime
Department of Biotechnology, Graduate School of Engineering, Osaka University
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