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오이/흑종호박 접목에서 오이녹반모자이크바이러스의 비기주 대목인 흑종호박으로 이동

Cucumber green mottle mosaic virus Moved into the Non-Host Figleaf Gourd Passing through Cucumber in Grafting System

  • 최국설 (농촌진흥청 국립원예특작과학원 원예특작환경과) ;
  • 이진아 (농촌진흥청 국립원예특작과학원 원예특작환경과) ;
  • 조점덕 (농촌진흥청 국립원예특작과학원 원예특작환경과) ;
  • 정봉남 (농촌진흥청 국립원예특작과학원 원예특작환경과) ;
  • 조인숙 (농촌진흥청 국립원예특작과학원 원예특작환경과)
  • Choi, Gug-Seoun (Horticulture & Herbal Environmental Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Lee, Jin-A (Horticulture & Herbal Environmental Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Cho, Jeom-Deog (Horticulture & Herbal Environmental Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Chung, Bong-Nam (Horticulture & Herbal Environmental Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Cho, In-Sook (Horticulture & Herbal Environmental Division, National Institute of Horticultural & Herbal Science, RDA)
  • 발행 : 2009.08.01

초록

오이녹반모자이크바이러스(Cucumber green mottle mosaic virus, CGMMV)는 오이 대목용 흑종호박(figleaf gourd)에 즙액 전염이 되지 않았으나, 2008년 충남 천안지역에서 CGMMV의 발병율이 100%를 나타내는 오이재배 하우스에서 채집한 이 대목은 RT-PCR에서 모두 바이러스가 검출되었다. 흑종호박에 오이를 접목한후 오이 잎에 CGMMV를 접종하여 RT-PCR을 실시한 결과, 흑종호박에서 목표 합성 DNA가 검출되었다. 검출된 DNA의 농도는 흑종호박 보다 오이에서 훨씬 높게 나타났다. 그러나 바이러스 입자는 대목 부위에서 검경이 되지 않았을 뿐만 아니라, Nicotiana benthamicana에도 감염이 되지 않았다. 대목에서 CGMMV 입자를 확인하기 위하여 흑종호박과 오이를 접목하여 상호 성장하게 한 후 오이 잎에 바이러스를 접종한 다음, 각각 식물체로부터 바이러스를 정제하였다. 오이 추출물에서는 전형적인 바이러스 순화 흡광도 곡선이 나타났지만, 흑종호박 추출물에서는 흡광도 곡선이 나타나지 않았고 단지 극소수의 바이러스 입자가 검경되었다. 이러한 결과에서 CGMMV의 입자는 대목으로 단순하게 이동이 확인되었지만, 흑종호박은 이 바이러스의 기주식물이 아님을 입증하였다.

Cucumber green mottle mosaic virus (CGMMV) was not infected in figleaf gourd by sap inoculation. However CGMMV was detected by RT-PCR from the figleaf gourd collected from a field growing cucumber grafted onto figleaf gourd in Cheonan, Chungcheongnam Province in 2008. Which field showed 100% infection rate of the virus disease. In the experiment grafted with cucumber onto figleaf gourd, transportation of CGMMV through cucumber to figleaf gourd was confirmed by RT-PCR when the virus was mechanically inoculated on the leaves of the cucumber. The amplified DNA concentration of the virus on electrophoresis gel was much higher in the cucumber than in the figleaf gourd. However, the virus particles from the figleaf gourds were not observed under electron microscopy, also sap of the figleaf gourds was not transmittable to Nicotiana benthamiana. To identify the existence of CGMMV particle, the virus was purified from figleaf gourd and cucumber growing together in the graft system. CGMMV solution extracted from the cucumber represented a typical absorption spectrum of the virus but that from the figleaf gourd did not. Only a few CGMMV particles were observed in the purified preparation from the figleaf gourd. These results confirmed that CGMMV only passed through figleaf gourd in the grafting system. This study indicated that figleaf gourd is not a host of CGMMY.

키워드

참고문헌

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피인용 문헌

  1. Cause of the Scion Death in Green Pepper Grafting System by a Tobamovirus vol.17, pp.2, 2011, https://doi.org/10.5423/RPD.2011.17.2.191
  2. Virus Disease Incidences and Transmission Ecology of Oriental Melons in Seongju Area vol.17, pp.3, 2011, https://doi.org/10.5423/RPD.2011.17.3.342
  3. in Korea pp.0191-2917, 2019, https://doi.org/10.1094/PDIS-07-18-1288-PDN