Induction of Resistance against Rice Blast Fungus in Rice Plants Treated with a Potent Elicitor, N-Acetylchitooligosaccharide

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概要

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• The mode of action of a potent elicitor, N-acetylchitooligosaccharide, in rice plants was examined. In intact seedlings, no significant uptake of the elicitor via the roots was observed within 3 h, whereas rapid uptake was observed in excised leaves. Rapid and transient expression of an elicitor-responsive gene, EL2, was induced in the leaves of intact seedlings sprayed with the elicitor or in the roots and leaves of intact seedlings by immersing roots in the elicitor solution. Histochemical analysis indicated that EL2 was expressed in cells exposed to the elicitor of root and leaves. In seedlings treated with the elicitor for 1 d or longer, hyphal growth of rice blast fungus was significantly delayed, and an accumulation of auto-fluorescence around the infection site was observed. Two defense-related genes, PR-1 and PR-10 (PBZ1), were induced in a systemic and local manner by elicitor treatment, in correlation with the induction of resistance against rice blast fungus. N-Acetylchitoheptaose did not inhibit the hyphal growth of the fungi. These results indicate the occurrence of systemic signal transmission from N-acetylchitooligosaccharide in rice plants.

• 社団法人 日本農芸化学会の論文
• 2006-07-23

著者

• OKADA Mitsuo

  Department of Physics, Faculty of Science, Kagoshima University

• YAMANE Hisakazu

  Biotechnology Research Center, The University of Tokyo

• MINAMI Eiichi

  National Institute of Agrobiological Sciences

• TANABE Shigeru

  Department of Urology, Shirasagi Hospital

• MINAMI Eiichi

  Department Biochemistry, National Institute of Agrobiological Science

• SHIBUYA Naoto

  Department Biochemistry, National Institute of Agrobiological Science

• JIKUMARU Yusuke

  Biotechnology Research Center, The University of Tokyo

• Minami Eiichi

  Div. Of Plant Sciences National Inst. Of Agrobiological Sciences

• Minami Eiichi

  Dep. Cell Biol. Natl. Inst. Agrobiol. Res.

• Tanabe Shigeru

  Department Of Biology Faculty Of Science Okayama University

• Tanabe Shigeru

  Division of Plant Sciences, National Institute of Agrobiological Sciences

• KAKU Hanae

  Department of Life Sciences, Faculty of Agriculture, Meiji University

• Yamane Hisakazu

  Biotechnology Res. Center The Univ. Of Tokyo

• Yamane Hisakazu

  Biotechnology Res. Center Univ. Of Tokyo

• Yamane Hisakazu

  Biotech. Res. Ctr. The Univ. Of Tokyo

• Okada Mitsuo

  Department Of Biochemistry National Institute Of Agrobiological Sciences

• Shibuya N

  Dep. Of Life Sciences Fac. Of Agriculture Meiji Univ.

• Jikumaru Yusuke

  Biotechnology Research Center The University Of Tokyo

• Kaku Hanae

  Department Of Life Sciences School Of Agriculture Meiji University

• Yamane H

  Biotechnology Research Center The University Of Tokyo

• Yamane Hisakazu

  Department Of Agricultural Chemistry Faculty Of Agriculture University Of Tokyo

• Tanabe Shigeru

  Division Of Plant Sciences National Institute Of Agrobiological Sciences

• Minami Eiichi

  Dept. Biotechnol. Natl. Inst. Agrobiol. Resources

• Yamane Hisakazu

  Biotechnology Research Center University Of Tokyo

• Okada Mitsuo

  Department Of Animal Husbandry Faculty Of Agriculture Tohoku University

• Yada H

  Biotechnology Research Center University Of Tokyo

• YAMANE Hisakazu

  Biotech. Res. Ctr. , The Univ. of Tokyo

• Kaku Hanae

  Department of Biochemistry, National Institute of Agrobiological Resources

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