| 감마선에 의한 감귤 궤양병균의 불활성화와 감귤 궤양병 감염에 미치는 영향 |
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김경남1 · 송민아1 · 한상헌2 · 송성준3 · 전용철1,2* |
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1제주대학교 식물자원환경전공, 2제주대학교 원예환경전공, 3제주대학교 원자력과학기술연구소 |
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| Inactivation of Xanthomonas citri subsp. citri and Effect on Infection of Citrus Canker by Gamma Irradiation |
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Kyung Nam Kim1, Min A Song1, Sang Heon Han2, Seong Joon Song3 and Yong Chull Jeun1,2* |
1Major of Plant Resources & Environment, Jeju National University, Jeju 690-756, Korea
2Major of Horticultural Science, The Research Institute for Subtropical Agriculture and Biotechnology, Jeju National University, Jeju 690-756, Korea
3Institute for Nuclear Science and Technology, Jeju National University, Jeju 690-756, Korea |
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Received: October 12, 2014 Revised: December 02, 2014 Accepted: December 04, 2014 |
| Abstract |
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Citrus canker caused by Xanthomonas citri subsp. citri (Xcc) has been quarantined by many countries in the world. Recently, the usage of methyl bromide should be limited, application by gamma irradiation on the agricultural production is raised as an alternative method. In this study, the level of gamma irradiation which could decrease of population of Xcc in the suspension or on the surface of citrus fruit was investigated. The D10 value of Xcc, which is radiation dose required to reduce the number of the microorganism, was 55 and 28 Gy in the suspension and on the surface of citrus fruit, respectively. Furthermore, disease severity was suppressed on the citrus leaves inoculated with Xcc suspension pre-treated with gamma irradiation. Based on this study, it is suggested that Xcc on the citrus fruit could be eradicated by gamma irradiation and the results of this study may be valuable for application of gamma ray in quarantine activity. |
| Key Words:
Environment friendly, Ionization, Jeju Island, Radio activity, Sterilization |
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