Research in Plant Disease (식물병연구)

The Korean Society of Plant Pathology (한국식물병리학회)
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Natural Hosts and Disease Cycle of Soybean yellow mottle mosaic virus

Soybean yellow mottle mosaic virus의 자연기주와 병환

  • Lee, Su-Heon (School of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University) ;
  • Kim, Chang-Suk (Crop Protection Division, National Academy of Agricultural Science, Rural Development Administration)
  • 이수헌 (경북대학교 응용생명과학부) ;
  • 김창석 (국립농업과학원 작물보호과)
  • Received : 2013.10.20
  • Accepted : 2013.10.22
  • Published : 2013.12.31
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Abstract

In surveys of weed occurrence undertaken from 2006 to 2007, near to the Daegu experimental fields of the National Institute of Crop Science, plants belonging to 31 families, 74 genera and 96 species were found. For the investigation of the natural or alternative hosts of Soybean yellow mottle mosaic virus (SYMMV), 495 plant samples belonging to 26 families 84 species were subjected to RT-PCR. SYMMV was detected only from legume plants such as Glycine soja, Vigna angularis var. nipponensis, Trifolium repens, and Lespedeza cuneata. Among legume plants tested, more than a third of G. soja (wild soybean) contained SYMMV, indicating that the wild soybean played an important role as a reservoir of SYMMV. Wild soybeans may be infected with SYMMV as early as mid-July. Considering the results of early infection and the high infection rate of seed and seed transmission of SYMMV in G. soja, wild soybeans may have played an important role in the completion of disease cycle of the virus.

2006년에서 2007년까지 콩연구센터 육종포장 주변에서 잡초 서식상황을 조사한 결과 31과 74속 96종의 식물이 확인되었다. SYMMV의 자연기주 또는 중간기주를 동정하기 위하여 26과 84종의 식물체가 포함되는 495점의 시료를 RT-PC R로 분석한 결과, 단지 콩과 식물에서(돌콩, 새팥, 토끼풀, 비수리)만 SYMMV가 검출되었다. SYMMV를 가지고 있는 콩과 식물 중에서 분석한 돌콩의 3분의 1이상이 SYMMV를 보독하고 있는 것으로 보아 돌콩은 SYMMV의 감염원으로써 중요한 역할을 담당하는 것으로 생각된다. 돌콩은 SYMMV에 7월 중순경에 감염되는 것으로 추정되었다. 돌콩에서 SYMMV의 빠른 감염시기, 높은 종자감염율 그리고 종자전염과 같은 결과로 볼 때, 돌콩은 SYMMV의 생활사 완성에 큰 역할을 담당하고 있는 것으로 판단된다.

Keywords

References

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