콩 불마름병 방제를 위한 살균제 선발

Bacterial pustule of soybean (Glycines max) caused by Xanthomonas axonopodis pv. glycines is one of the most prevalent bacterial diseases of soybean. This bacterium shows strong pathogenicity to the plants and distributes throughout Korea. However, no good control measures including bactericides and...

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Published inSigmulbyeong yeon'gu Vol. 16; no. 3; pp. 266 - 273
Main Authors 홍성준(Sung-Jun Hong), 김용기(Yong-Ki Kim), 지형진(Hyeong-Jin Jee), 이봉춘(Bong-Choon Lee), 윤영남(Young-Nam Yoon), 박성태(Sung-Tae Park)
Format Journal Article
LanguageKorean
Published 한국식물병리학회 2010
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ISSN1598-2262
2233-9191

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Summary:Bacterial pustule of soybean (Glycines max) caused by Xanthomonas axonopodis pv. glycines is one of the most prevalent bacterial diseases of soybean. This bacterium shows strong pathogenicity to the plants and distributes throughout Korea. However, no good control measures including bactericides and resistant cultivars are available to control the disease in Korea. Therefore, this study was conducted to develop chemical control method against soybean bacterial pustule. The present study was undertaken to find out the growth inhibitory effect bactericides (8 antibiotics, 2 copper compounds, quinoline, 18 agro-chemicals) on bacterial pustule pathogen. Antibiotics test showed that tetracycline and streptomycin sulfate significantly suppressed the growth of bacterial pustule pathogen. Also, application of oxolinic acid was found to be effective for pathogen inhibition. However, vancomycin, polymyxin B sulfate and copper compounds did not show the positive suppressive effect on growth of the pathogen. Among the eighteen agro-chemicals, streptomycin sulfate + oxytetracyclin (18.8 + 1.5%) WP, oxytetracycline (17%) WP and oxolinic acid (20%) WP were found to be effective for the inhibition of the pathogen in vitro. The selected 5 agro-chemicals were also applied on soybean in field and their control effects against the soybean bacterial pustule were tested. The foliar application of streptomycin sulfate + oytetracyclin WP and oxytetracycline WP on the naturally infected soybean (Taekwangkong) showed high control value (above 70%). Therefore, it is concluded that the bactericides used in this study showed strong inhibitory effect to soybean bacterial pustule and they can be recommend to farmers to control the disease. Xanthomonas axonopodis pv. glycines에 의해 발병되는 콩 불마름병은 콩에 가장 많이 발생하는 중요한 세균성 병해 중 하나이다. 게다가 병원균은 강한 병원성을 가지고 한국 전역에 분포하고 있지만, 한국에서는 불마름병방제를 위한 약제나 저항성 품종이 개발되어 있지 못한 실정이다. 따라서 본 연구의 목적은 불마름병을 화학적 방법으로 방제할 수 있는 방법을 개발하기 위해 수행되었다. 콩 불마름병 병원균의 효과적인 생육억제 약제를 선발하기 위해 여러 가지 살세균제들(8개의 항생제, 2개의 구리화합물, 1개의 quinoline, 18개의 농약)을 이용하여 효과를 확인하였다. 실내 생장억제 효과조사 결과, tetracycline, streptomycin sulfate 처리에서 병원균의 생육이 크게 억제되었으며, 또한 oxolinic acid도 병원균의 생육억제 효과가 우수하였다. 하지만 vancomycin, polymyxin B sulfate and copper compounds 등은 불마름병 병원균의 생육억제효과가 확인되지 않았다. 18종의 농용약제 중에는 streptomycin sulfate + oxytetracycline(18.8 + 1.5%)WP, oxytetracycline(17%)WP, oxolinic acid(20%) 등이 실내에서 병원균의 생육억제 효과가 높은 것으로 조사되었다. 선발된 5종의 농용약제에 대하여 포장에서 방제효과 시험을 실시한 결과, streptomycin sulfate + oxytetracycline (18.8 + 1.5%) WP와 oxytetracycline(17%) WP가 자연 감염된 태광콩 포장에서 70% 이상의 높은 방제효과를 나타내었다. 그러므로 콩불마름병균에 대한 강한 억제효과를 가지는 이 약제들은 콩 불마름병의 화학적 방제에 실용성이 있을 것으로 생각된다.
Bibliography:KISTI1.1003/JNL.JAKO201007049666718
G704-000936.2010.16.3.001
ISSN:1598-2262
2233-9191