Behavioral Responses of the Ciliated Protozoan Paramecium caudatum to 2,4-Dichlorophenoxyacetic Acid and Its Analogues

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概要

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• We found that the ciliated protozoan Paramecium caudatum ON-1 was repelled by 2,4-dichloro-phenoxyacetic acid (2,4-D). P caudatum was also repelled by phenoxyacetic acid, while it was attracted to benzoic acid. No significant behavioral response was detected with 2,4-dichloro-phenol (2,4-DP) and phenol. These results suggested that the substitution of -OH of phenol with-OCH_2COOH, but not the chlorination of phenol, was important for eliciting the avoiding re-sponse to 2,4-D in P caudatum. Electrophysiological analysis revealed that 2,4-D and phenoxyace-tic acid were able to trigger the action potential in P caudatum, whereas 2,4-DP and phenol failed to elicit electrical responses in this organism. Well test assays suggested that the avoiding reactions allowed P caudatum to escape from the harm caused by this herbicide.

• 社団法人日本生物工学会の論文
• 2002-04-25

著者

• Ohtake Hisao

  Department of Biotechnology, Graduate School of Engineering, Osaka University

• Kato Junichi

  Department Of Cardiology Asahikawa Medical College

• KURODA Akio

  Department of Molecular Biotechnology, Hiroshima University

• Ohtake H

  Department Of Biotechnology Osaka University

• Ohtake Hisao

  Department Of Biotechnology Graduate School Of Engineering Osaka University

• Ohtake H

  Institute Of Applied Microbiology University Of Tokyo

• Ohtake Hisao

  Institute Of Applied Microbiology The University Of Tokyo

• Ohtake Hisao

  Department Of Fermentation Technology Hiroshima University

• Kato J

  Department Of Molecular Biotechnology Hiroshima University

• IKEDA TSUKASA

  Department of Fermentation Technology, Hiroshima University

• TAJIMA TAKAHISA

  Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima Uni

• TAKIGUCI NOBORU

  Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima Uni

• ASAYAMA KOSEI

  Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima Uni

• Kuroda A

  Department Of Molecular Biotechnology Hiroshima University

• Kuroda Akio

  Department Of Molecular Biotechnology Hiroshima University

• Kato Junichi

  Department Of Agricultural Biological Chemistry College Of Bioresource Sciences Nihon University

• Kato J

  Department Of Chemical Engineering Faculty Of Engineering Shizuoka University

• Asayama Kosei

  Department Of Molecular Biotechnology Graduate School Of Advanced Sciences Of Matter Hiroshima Unive

• Ikeda Tsukasa

  Department Of Applied Chemistry Utsunomiya University

• Ikeda T

  Dep. Of Material And Environmental Chemistry Graduate School Of Engineering Utsunomiya Univ.

• Takiguchi Noboru

  Department Of Molecular Biotechnology Hiroshima University

• Takiguchi Noboru

  Department Of Biotechnology Graduate School Of Engineering Osaka University

• Kato Junichi

  Department Of Agricultural Chemistry University Of Tokyo

• Ikeda T

  Osaka Medical Coll. Osaka

• Kuroda Akio

  Department Of Chemistry Faculty Of Science Nagoya University

• Tajima Takahisa

  Department Of Molecular Biotechnology Graduate School Of Advanced Sciences Of Matter Hiroshima Unive

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