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Timing and extent of hypersensitive response are critical to restrict local and systemic spread of Pepper mild mottle virus in pepper containing the L 3 gene

  • VIRAL AND VIROID DISEASES Short communication
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Abstract

Amino acid changes in Pepper mild mottle virus (PMMoV) coat protein (CP) that enhance, decrease, or nullify the resistance-inducing activity in Capsicum plants carrying the L 3 gene have been identified. In this study, molecular events underlying the L 3-gene-mediated resistance were analyzed through the expression of hypersensitive response (HR)-related genes, HSR203J-Cc and HIN1-Cc, and defense-related genes, PR1-Cc and PR4b-Cc, upon infection with PMMoV CP mutants. The expression kinetics of the genes correlated with the degree of restriction of virus distribution in the inoculated leaves. The results suggest that the timing and extent of HR are critical factors to restrict virus spread both locally and systemically in L 3-gene-mediated resistance.

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Author notes

  1. Hiroyuki Hamada

    Present address: Iwate Biotechnology Research Center, Iwate, Japan

Authors and Affiliations

  1. Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Kochi, Japan

    Hiroyuki Hamada, Akinori Kiba & Yasufumi Hikichi

  2. Laboratory of Plant Pathology, Kochi Agricultural Research Center, Kochi, Japan

    Shigeharu Takeuchi

  3. National Agriculture Research Center, Tsukuba, Japan

    Shinya Tsuda

  4. Iwate Biotechnology Research Center, Iwate, Japan

    Kazumi Suzuki

  5. Laboratory of Plant Pathology, Graduate School of Agriculture, Kyoto University, Kitashirakawa, Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan

    Tetsuro Okuno

Authors
  1. Hiroyuki Hamada
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  2. Shigeharu Takeuchi
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  3. Akinori Kiba
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  4. Shinya Tsuda
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  5. Kazumi Suzuki
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  6. Yasufumi Hikichi
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  7. Tetsuro Okuno
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Corresponding author

Correspondence to Tetsuro Okuno.

Additional information

The nucleotide sequence data reported are available in the DDBJ/GenBank/EMBL databases under accession numbers AB162220 (HSR203J-Cc), AB162221 (HIN1-Cc), AB162222 (PR1-Cc), and AB162223 (PR4b-Cc)

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Hamada, H., Takeuchi, S., Kiba, A. et al. Timing and extent of hypersensitive response are critical to restrict local and systemic spread of Pepper mild mottle virus in pepper containing the L 3 gene. J Gen Plant Pathol 71, 90–94 (2005). https://doi.org/10.1007/s10327-004-0164-1

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  • DOI: https://doi.org/10.1007/s10327-004-0164-1

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