[논문]과산화수소를 이용한 새싹인삼의 뿌리썩음병 방제효과

송종석; 안금란; 정선경

doi:10.5423/rpd.2022.28.4.204

과산화수소를 이용한 새싹인삼의 뿌리썩음병 방제효과
Efficacy of Hydrogen Peroxide on Root Rot Disease of Ginseng Sprouts 원문보기

Research in plant disease = 식물병연구, v.28 no.4, 2022년, pp.204 - 208

송종석 (한국핵융합에너지연구원 플라즈마기술연구소) , 안금란 (한국핵융합에너지연구원 플라즈마기술연구소) , 정선경 (한국핵융합에너지연구원 플라즈마기술연구소)

초록
AI-Helper

새싹인삼의 뿌리썩음병 억제제로서 과산화수소의 활용 가능성을 구명하고자 항진균 활성효과와 묘삼 소독효과를 연구한 결과, 과산화수소는 300 mg/l의 농도에서 1×10⁷ conidia/ml 농도의 Cylindrocarpon destructans 균총을 80% 이상 억제시켜 항진균 활성을 나타내었고 인위적으로 병원균에 감염시킨 묘삼의 유병율을 20% 이하로 억제시켜 소독효과가 매우 높았다. 결과적으로 과산화수소 희석수 300 mg/l를 14일에 걸쳐 분무처리하였을 때, 인위적으로 병원균에 감염된 새싹인삼의 뿌리썩음병 발생수율이 72.1%로 무처리의 발생수율 87.2%에 비해 다소 억제되었다. 그러나, 과산화수소의 주기적인 살포가 새싹인삼의 생육 부진을 다소 유발하였다. 추가 연구로서 뿌리썩음병의 방제에 효과적이고 새싹인삼에 안전한 과산화수소의 처리방법 개발이 요구되었다.

Abstract ▼ AI-Helper

Hydrogen peroxide is an eco-friendly oxidizing agent, which has exhibited a broad spectrum of antimicrobial activity without adverse environmental impact. This study was conducted to investigate the antifungal effect of hydrogen peroxide treatment against Cylindrocarpon destructans, and consequently to evaluate its control efficacy against root rot disease of 2-year-old ginseng plants. Hydrogen peroxide treatment strongly inhibited the viability of C. destructans conidia in vitro. The hydrogen peroxide at a concentration of 300 mg/l significantly reduced disease infection of the ginseng root when treated to spore suspension (107 conidia/ml). Spraying with 300 mg/l of hydrogen peroxide reduced the root rot disease of the ginseng sprouts by 15% compared to the untreated control at 14 days after the inoculation. However, 300 mg/l of hydrogen peroxide delayed the emergence of ginseng plants during sprouting under aeroponic conditions. Further works need to be done to provide an acceptable control efficacy of hydrogen peroxide against the disease and its good safety to ginseng plants.

주제어

표/그림 (5)

그림 Fig. 1. Fungal concentration of Cylindrocarpon destructans in vitro, each treated with hydrogen peroxide at a range of 0 to 300 mg/l. The vertical bar represents the standard error of the mean. Means with different letters are significantly different by Tukey's test at P=0.05.
그림 Fig. 2. A photograph of ginseng sprouts, each sprayed with untreated tap water and 300 mg/l of hydrogen peroxide (H₂O₂) for disease control up to 14 days.
표 Table 1. The percentage of disease incidence in the ginseng root
표 Table 2. Ion concentration of H₂O₂ solution used in the aeroponic system as compared with TW
표 Table 3. Root-rot disease incidence and average biomass of ginseng plants at 14 days after planting, each sprayed with untreated TW and 300 mg/l of H₂O₂ up to 14 days

참고문헌 (17)

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