Takao Ito

Publications (2)4.22 Total impact

• Source

  Available from: Yasufumi Hikichi

  Article: The coat protein gene of tobamovirus P0 pathotype is a determinant for activation of temperature-insensitive L1a-gene-mediated resistance in Capsicum plants

  Katsutoshi Matsumoto, Hiromasa Sawada, Kouhei Matsumoto, Hiroyuki Hamada, Eri Yoshimoto, Takao Ito, Shigeharu Takeuchi, Shinya Tsuda, Kazumi Suzuki, Kappei Kobayashi, Akinori Kiba, Tetsuro Okuno, Yasufumi Hikichi
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  ABSTRACT: Tobamovirus resistance in Capsicum plants, which is mediated by L genes (L 1 , L 2 , L 3 or L 4 ), is known to be temperature sensitive. However, the L 1a gene, a newly identified tobamovirus resistance gene that is mapped to the L locus, confers temperature-insensitive resistance against the tobamovirus P0 pathotype. To identify the viral elicitor that activates the L 1a -gene-mediated resistance, several chimeric viral genomes were constructed between tobacco mosaic virus-L (P0 pathotype), paprika mild mottle virus-J (P1 pathotype) and pepper mild mottle virus-J (P1,2 pathotype). Infection patterns of these chimeric viruses in L 1a -harboring plants revealed that the L 1a -gene-mediated resistance was activated by the CP of a particular pathotype of tobamovirus, like other L-gene-mediated resistances, but the L 1a -gene-mediated resistance differs from those conferred by other L genes in terms of temperature sensitivity.
  Archives of Virology 04/2012; 153(4):645-650. · 2.11 Impact Factor
• Source

  Available from: Yasufumi Hikichi

  Article: The coat protein gene of tobamovirus P 0 pathotype is a determinant for activation of temperature-insensitive L 1a-gene-mediated resistance in Capsicum plants.

  Katsutoshi Matsumoto, Hiromasa Sawada, Kouhei Matsumoto, Hiroyuki Hamada, Eri Yoshimoto, Takao Ito, Shigeharu Takeuchi, Shinya Tsuda, Kazumi Suzuki, Kappei Kobayashi, Akinori Kiba, Tetsuro Okuno, Yasufumi Hikichi
  [show abstract] [hide abstract]
  ABSTRACT: Tobamovirus resistance in Capsicum plants, which is mediated by L genes (L(1), L(2), L(3) or L(4)), is known to be temperature sensitive. However, the L(1a ) gene, a newly identified tobamovirus resistance gene that is mapped to the L locus, confers temperature-insensitive resistance against the tobamovirus P(0) pathotype. To identify the viral elicitor that activates the L(1a )-gene-mediated resistance, several chimeric viral genomes were constructed between tobacco mosaic virus-L (P(0) pathotype), paprika mild mottle virus-J (P(1 )pathotype) and pepper mild mottle virus-J (P(1,2) pathotype). Infection patterns of these chimeric viruses in L(1a )-harboring plants revealed that the L(1a )-gene-mediated resistance was activated by the CP of a particular pathotype of tobamovirus, like other L-gene-mediated resistances, but the L(1a )-gene-mediated resistance differs from those conferred by other L genes in terms of temperature sensitivity.
  Archives of Virology 02/2008; 153(4):645-50. · 2.11 Impact Factor