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Disease Assessment in Transgenic Rice (CPPO06) Resistant to the Protox-inhibiting Herbicide

Protox 저해 제초제 내성 형질전환 벼(CPPO06)에서의 병 발생 조사

  • Kim, Ga-Hye (Department of Plant Medicine, College of Agriculture, Life Science and Environment, Chungbuk National University) ;
  • Lee, Ho-Taek (Department of Plant Medicine, College of Agriculture, Life Science and Environment, Chungbuk National University) ;
  • Park, Se-Jung (Department of Plant Medicine, College of Agriculture, Life Science and Environment, Chungbuk National University) ;
  • Kim, A-Hyeong (Department of Plant Medicine, College of Agriculture, Life Science and Environment, Chungbuk National University) ;
  • Gwon, Hyeon-Wook (Department of Plant Medicine, College of Agriculture, Life Science and Environment, Chungbuk National University) ;
  • Kim, Joo-Hyung (Department of Plant Medicine, College of Agriculture, Life Science and Environment, Chungbuk National University) ;
  • Kim, Heung-Tae (Department of Plant Medicine, College of Agriculture, Life Science and Environment, Chungbuk National University)
  • Received : 2011.12.01
  • Accepted : 2012.03.20
  • Published : 2012.04.30

Abstract

The rice diseases occurring on the transgenic rice plant carrying protox gene (CPPO06) was assessed and compared with other varieties of rice such as Dongjin, Chucheong, Ilpeum, and Onnuri in the fields located in Cheongwon of Chungbuk, Suwon of Gyeunggi, and Gwangju of Chonnam. In the field of Cheongwon, the diseases such as blast, leaf spot, sheath blight and Fusarium blight were observed. False smut were observed only in the field of Suwon, where the ratio of diseased plants was 0.28% in CPPO06 and 0.37% in Onnuri, respectively. In the field of Gwangju, leaf spot caused by Cochlioborus miyabeanus was the most severely occurring disease among rice diseases mentioned above. Fusarium blight occurred in all the 3 fields, which were more severe in CPPO06 plants treated with or without oxadiazon as the herbicide. Except for Fusarium blight, there was no significant difference in the rice diseases as blast, leaf spot, sheath blight and false smut between CPPO06 and other rice varieties.

Protox 유전자를 형질전환하여 protox 저해 제초제에 대한 내성이 증가한 벼를 모품종인 동진벼와 다른 벼 품종인 일품벼, 추청벼, 온누리벼와 같이 충북 청원, 경기 수원 그리고 전남 광주에 있는 형질전환 작물 격리포장에서 재배하면서 포장에서 발생하는 다양한 식물병을 조사하여 식물병원균에 대한 감수성 정도를 비교하였다. 충북 청원 포장에서는 벼 도열병, 깨씨무늬병, 잎집무늬마름병, Fusarium 마름증상 등이 발생하였다. 하지만 수원 포장에서는 깨씨무늬병이 거의 발생하지 않았고, 다른 포장에서 볼 수 없었던 이삭누룩병의 발생이 CCPO6벼와 온누리벼에서 0.28%와 0.37%의 발병수율을 보였다. 광주 포장에서는 깨씨무늬병의 발생이 다른 병보다 심하게 나타났다. 하지만 모든 포장에서 Fusarium에 의한 마름증상을 제외하고 벼 품종간에 있어서 발생량에 차이는 보이지 않았다. Fusarium에 의한 마름증상은 다른 벼 품종보다도 제초제를 처리하거나 처리하지 않은 CCPO6벼에서 높은 발병주율을 보였다.

Keywords

References

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