Research in Plant Disease (식물병연구)

The Korean Society of Plant Pathology (한국식물병리학회)
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Riboflavin-based BioDoctorTM Induced Disease Resistance against Rice Blast and Bacterial Leaf Blight Diseases

리보플라빈을 함유한 바이오닥터TM 처리에 따른 벼 도열병과 흰잎마름병 억제효과

  • Received : 2016.06.29
  • Accepted : 2016.08.16
  • Published : 2016.09.30
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Abstract

Rice bacterial blight and blast are devastating rice diseases in worldwide. Riboflavin, vitamin B2, is an essential nutrient for human health, and is known to be as a growth regulator and as a plant defense activator against pathogens in plants. In this study, we investigated possibility of increasing internal vitamin B contents and inducing resistances against rice diseases by external foliar application of a riboflavin-based formulator called BioDoctor. In planta bioassay indicated that pretreatment of the foliar application of 1,000-fold or 500-fold diluted BioDoctor significantly induced disease resistance against rice blast and bacterial blight. In addition, about four fold higher levels of riboflavin contents were detected in the BioDoctor treated rice grain and stem compared to those of untreated rice. Our results indicated that foliar application of the riboflavin has a great potential to control plant diseases and to enhance internal vitamin contents in rice.

쌀은 세계에서 가장 중요한 작물 중의 하나이지만 충분한 비타민을 제공하지 않고, 벼 도열병과 흰잎마름병은 전 세계적으로 가장 큰 피해를 주고 있는 병해이다. 리보플라빈, 비타민 B2는 인간의 건강에 필수적인 영양소이며, 식물의 병원균에 대한 식물의 방어 활성화로 알려져 있다. 본 연구에서는 BioDoctor (Hyunnong Co., Ltd., Gokseong, Korea)라는 리보플라빈 기반 제품을 벼에 경엽살포했을 때, 주요 병해에 대한 저항성 유도 및 벼 체내에 비타민 함량이 증가되는지에 대한 가능성을 조사하였다. 온실검정에서 BioDoctor 제품 500배와 1,000배로 희석하여 경엽처리 결과 벼 도열병과 흰잎마름병에 대해 현저한 병 저항성을 유도하였다. 또한, BioDoctor를 처리한 알곡과 잎에서 통계적으로 유의한 수준으로 리보플라빈 함량이 검출되었다. 본 연구는 비타민인 리보플라빈이 함유된 BioDoctor가 벼 도열병과 흰잎마름병에 대해 병 저항성을 유도할 뿐만 아니라 쌀 곡류 내에 비타민 함량을 증가시키는 큰 잠재력을 가지고 있는 것으로 나타났다.

Keywords

References

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