Korean Journal of Environmental Agriculture (한국환경농학회지)

The Korean Society of Environmental Agriculture (한국환경농학회)
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Responses of Misgurnus anguillicaudatus and Cyprinus carpio Fed on Disease Resistant(OsCK1) Rice Variety

병저항성 GM(OsCK1)벼가 미꾸리(Misgurnus anguillicaudatus)및 잉어(Cyprinus carpio)에 미치는 영향

  • Oh, Sung-Dug (National Academy of Agricultural Science, Rural Development Administration) ;
  • Lee, Kijong (National Academy of Agricultural Science, Rural Development Administration) ;
  • Park, Soo-Yun (National Academy of Agricultural Science, Rural Development Administration) ;
  • Lee, Dae-Yong (Korea Testing & Research Institute) ;
  • Sohn, Soo-In (National Academy of Agricultural Science, Rural Development Administration) ;
  • Kim, Min-Young (National Academy of Agricultural Science, Rural Development Administration) ;
  • Ryu, Tae-Hun (National Academy of Agricultural Science, Rural Development Administration)
  • 오성덕 (농촌진흥청 국립농업과학원) ;
  • 이기종 (농촌진흥청 국립농업과학원) ;
  • 박수윤 (농촌진흥청 국립농업과학원) ;
  • 이대용 (한국화학융합시험연구원) ;
  • 손수인 (농촌진흥청 국립농업과학원) ;
  • 김민영 (농촌진흥청 국립농업과학원) ;
  • 류태훈 (농촌진흥청 국립농업과학원)
  • Received : 2013.08.28
  • Accepted : 2013.09.23
  • Published : 2013.09.30
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Abstract

BACKGROUND: The disease resistant (OsCK1) rice was generated by inserting choline kinase (CK1) and phosphinothricin acetyltransferase (PAT) genes isolated from Oriza sativa and Streptomyces hygroscopicus into the genome of rice (Nakdongbyeo). With the potential problems of safety, the non-target organism evaluation is required as an essential element for the environmental risk assessment of genetically modified (GM) crops. In present study, we studied the effects on survival of Misgurnus anguillicaudatus and Cyprinus carpio, commonly used as a model organism in ecotoxicological studies. METHODS AND RESULTS: The M. anguillicaudatus and C. carpio were fed on disease resistant (OsCK1) rice and non-genetically modified (non-GM) rice (Nakdongbyeo) to 0, 10, 100, 1,000 and 5,000 mg/L, as treatment concentration respectively. The OsCK1 rice used for the test was confirmed to have the OsCK1/PAT gene expression by the PCR and ELISA analysis. Feeding test showed that no significant differences in cumulative immobility and abnormal response of M. anguillicaudatus and C. carpio fed on between OsCK1 rice and non-GM rice. The 96hr-$LC_{50}$ values showed no difference between OsCK1 rice (>5,000 mg/L) and non-GM rice (>5,000 mg/L). CONCLUSION(S): The results of this study suggested that there was no significant difference in toxicity for M. anguillicaudatus and C. carpio between OsCK1 rice and non-GM counterparts.

본 연구는 병저항성 OsCK1 유전자와 제초제저항성 PAT 유전자가 도입된 병저항성 GM벼에서 도입 유전자의 발현 검증과 수서환경의 비표적 생물체인 잉어와 미꾸리에 미치는 영향을 확인하기 위해 수행되었다. 병저항성 GM벼에 도입된 OsCK1와 PAT 유전자의 PCR 분석 결과, 병저항성 GM벼에서만 특이적인 밴드가 검출되었으며, PAT 단백질 발현량을 ELISA 분석한 결과, 병저항성 GM벼에서만 $45.44{\pm}2.23{\mu}g/g$ 수준으로 검출되었고, 모품종인 낙동벼에서는 검출되지 않았다. 병저항성 GM벼와 낙동벼의 미꾸리(Misgurnus anguillicaudatus)와 잉어(Cyprinus carpio)에 대한 급성독성시험을 실시한 결과, 48시간 및 96시간-$LC_{50}$ 은 5,000 mg/L 이상으로 나타났다. 48시간 및 96시간 무영향농도 NOEC)는 5,000 mg/L이었다. 급성독성 시험기간 중 병저항성 GM벼와 낙동벼간의 pH, DO, 수온, 체중 및 전장에 대한 유의적인 결과는 나타나지 않았다.

Keywords

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