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HopH1 effectors of Pseudomonas syringae pv. tomato DC3000 and pv. syringae B728a induce HR cell death in nonhost eggplant Solanum torvum

  • Bacterial and Phytoplasma Diseases
  • Published:
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Abstract

HopH1 is an effector protein of Pseudomonas syringae pv. tomato DC3000 and P. syringae pv. syringae B728a and is a homolog of the putative Zn-dependent protease effector Rip36 of Ralstonia solanacearum, which induces hypersensitive response (HR) cell death in a nonhost plant, Solanum torvum Sw. cv. Torubamubiga. Although P. syringae pv. phaseolicola (Pph) 1448A neither produces HopH1 nor induces HR cell death, hopH1-introduced Pph 1448A acquired the ability to induce HR. These results indicate that the putative Zn-protease HopH1 effector induces HR cell death in nonhost S. torvum.

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Acknowledgements

We are grateful to Dr. A. Collmer (Cornell University) for providing P. syringae pvs. tomato DC3000, syringae B728a, and phaseolicola 1448A. This work was supported in part by Grants-in-Aid for Scientific Research (Nos. 24658042 and 19H02956) from the Ministry of Education, Culture, Sports, Science and Technology of Japan and Joint Research Project by Okayama Prefecture.

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Author notes

  1. Fumiko Taguchi

    Present address: Department of Biotechnology, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan

Authors and Affiliations

  1. Graduate School of Natural Science and Technology, Okayama University, Okayama, 700-8530, Japan

    Kamrun Nahar, Mikihiro Yamamoto, Kazuhiro Toyoda & Yuki Ichinose

  2. Research Institute for Biological Sciences, Okayama (RIBS), Yoshikawa, Kibichuo-cho, Okayama, 716-1241, Japan

    Takafumi Mukaihara & Tomonori Shiraishi

  3. Graduate School of Environmental and Life Science, Okayama University, Okayama, 700-8530, Japan

    Fumiko Taguchi, Hidenori Matsui, Mikihiro Yamamoto, Kazuhiro Toyoda, Yoshiteru Noutoshi & Yuki Ichinose

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  1. Kamrun Nahar
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  2. Takafumi Mukaihara
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Correspondence to Yuki Ichinose.

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Nahar, K., Mukaihara, T., Taguchi, F. et al. HopH1 effectors of Pseudomonas syringae pv. tomato DC3000 and pv. syringae B728a induce HR cell death in nonhost eggplant Solanum torvum. J Gen Plant Pathol 87, 24–29 (2021). https://doi.org/10.1007/s10327-020-00961-z

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