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First Report of Waitea Ring Patch caused by Waitea circinata on Zoysiagrass

Zoysiagrass에 Waitea circinata에 의한 Waitea Ring Patch 발생

  • Kim, Kyung-Duck (Plant & Environment Research Center, Samsung Cheil Industries) ;
  • Hong, Sung-Chul (Department of Molecular Biology, Dankook University) ;
  • Jang, Kong-Man (Plant & Environment Research Center, Samsung Cheil Industries) ;
  • Han, Muho (Plant & Environment Research Center, Samsung Cheil Industries) ;
  • Pyee, Jae-Ho (Department of Molecular Biology, Dankook University) ;
  • Park, Dae-Sup (Plant & Environment Research Center, Samsung Cheil Industries)
  • 김경덕 (제일모직(주) 식물환경연구소) ;
  • 홍성철 (단국대학교 분자생물학과) ;
  • 장공만 (제일모직(주) 식물환경연구소) ;
  • 한무호 (제일모직(주) 식물환경연구소) ;
  • 피재호 (단국대학교 분자생물학과) ;
  • 박대섭 (제일모직(주) 식물환경연구소)
  • Received : 2014.11.18
  • Accepted : 2014.12.08
  • Published : 2014.12.31

Abstract

A new pathogen was isolated from zoysiagrass-planted park of Jeju island in 2014. Symptoms appeared a type of irregular patches occurring brownish leaf blight, followed by stem and crown rot. The symptom was very similar to that of large patch caused by Rhizoctonia solani, a well-known devastating zoysiagrass disease. The isolate showed thin orange-colored mycelia and screlotia were formed on the medium based on cultural characteristics. The causal agent of the disease was finally identified as Waitea circinata by analysis of ribosomal DNA. On the inoculation test, Waitea circinatae showed strong pathogenicity to the zoysiagrass. The mycelia were obviously observed in the inoculated tissues. This is the first report of Waitea ring patch caused by Waitea circinata on zoysiagrass.

Keywords

Turf disease;Waitea circinata;Waitea ring patch;Zoysiagrass

References

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Cited by

  1. Morphological Characteristics and Occurrence of Yellow Tuft on Zoysiagrass (Zoysia japonica) in Cultivation Fields vol.5, pp.1, 2016, https://doi.org/10.5660/WTS.2016.5.1.17