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Natural woody plant, Mallotus japonicus, as an ecological partner to transfer different pathotypic conidia of Oidium neolycopersici to greenhouse tomatoes

Author

Listed:
  • Teruo Nonomura

    (Laboratory of Phytoprotection, Science and Technology, Faculty of Agriculture, Kinki University, Nara, Japan)

  • Yoshinori Matsuda

    (Laboratory of Phytoprotection, Science and Technology, Faculty of Agriculture, Kinki University, Nara, Japan)

  • Shun Yamashita

    (Laboratory of Phytoprotection, Science and Technology, Faculty of Agriculture, Kinki University, Nara, Japan)

  • Haruhiko Akahoshi

    (Laboratory of Phytoprotection, Science and Technology, Faculty of Agriculture, Kinki University, Nara, Japan)

  • Yoshihiro Takikawa

    (Plant Center, Institute of Advanced Technology, Kinki University, Wakayama, Japan)

  • Koji Kakutani

    (Pharmaceutical Research and Technology Institute, Kinki University, Osaka, Japan)

  • Hideyoshi Toyoda

    (Laboratory of Phytoprotection, Science and Technology, Faculty of Agriculture, Kinki University, Nara, Japan)

Abstract

In our routine surveys for the powdery mildew disease in greenhouse tomatoes, we detected a new pathogen that forms pseudochains consisting of 12 conidia. To identify the original plant that dispersed this pathogen, wild plants infected with powdery mildew were monitored. The pathogen on Japanese mallotus, Mallotus japonicus, produced a similar type of pseudochain, and conidia were infectious to tomatoes. Inversely, the conidia on the tomato leaves infected M. japonicus. Infectivity assays and internal transcribed spacer (ITS)-based phylogenetic analyses indicated that the two pathogens on the tomato and M. japonicus were identical. These results suggest that the conidia on M. japonicus can be transmitted to greenhouse tomatoes. This work documents the ecological transmission of conidia between wild plants and greenhouse tomatoes

Suggested Citation

  • Teruo Nonomura & Yoshinori Matsuda & Shun Yamashita & Haruhiko Akahoshi & Yoshihiro Takikawa & Koji Kakutani & Hideyoshi Toyoda, 2013. "Natural woody plant, Mallotus japonicus, as an ecological partner to transfer different pathotypic conidia of Oidium neolycopersici to greenhouse tomatoes," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 49(SpecialIs), pages 33-40.
    • Handle: RePEc:caa:jnlpps:v:49:y:2013:i:specialissue:id:24-2013-pps
    DOI: 10.17221/24/2013-PPS
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    1. A. Lebeda & B. Mieslerová & L. Luhová & K. Mlíčková, 2002. "Resistance mechanisms in Lycopersicon spp. to tomato powdery mildew (Oidium neolycopersici)," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 38(SI1-6thCo), pages 141-144.
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