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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 강원대학교 산림과학연구소 Journal of forest and environmental science Journal of forest and environmental science 제33권 제4호
- 발행연도
- 2017.1
- 수록면
- 342 - 347 (6page)
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초록· 키워드
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Since the first report of the oak wilt disease at 2004 in Korea, the disease distributed over Korean peninsula and are still giving severe damages. The management of oak wilt disease in Korea has mainly focused on the control of insect vector, Platypus koryoensis. Neverthless the effective method for evaluating the pathogenicity of the pathogen, Raffaelea quercus-mongolicae (Rqm), and for screening chemical or biological agents with strong inhibitory activity against the pathogen, is absolutely necessary, an reliable method is not available so far. This study was conducted to develop the effective method for evaluating the pathogenicity of Rqm in oak trees. The culture suspensions of Rqm were artificially injected to the saplings of Quercus acutissima by using ChemJet tree injector. Three months after treatments, the treated saplings were cut and dipped into 1% fuchsin acid solution. There were significant differences in non-conductive area (%), discoloration area (%) and vertical discoloration length between the pathogen-injected and distilled water-injected control treatments. These results indicated that the pathogen is the causal agent for the dysfunction of water conductive tissue, which will finally result in wilt symptom. Re-isolation of the pathogen and PCR detection using specific primers for the pathogen also confirmed the presence of Rqm in the sapwood chips of the pathogen-injected saplings. These observations would be greatly applied to other related researches for evaluating the pathogenicity of tree wilt pathogens and biocontrol efficacy of the selected antagonistic microorganisms, in case that the wilt symptom is not easily shown by artificial inoculation of the causal agent.
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참고문헌 (15)
참고문헌 신청
Kim KH. / 2009 / Present status of oak wilt disease occurrence and management strategy / Fall Symposium of Tree Disease Research Group. Current trends in the research of oak wilt d
Kim KH. / 2010 / Tree A. Maintenance / Tree Diagnostic Center, Kangwon National University : 35 ~ 41
Kim YT / 2009 / Screening of endophytic fungi isolated from pine wood for nematicidal activity, and preventive effects against pine wilt disease by trunk injection / Proc. of 2009
Kwon YD. / 2009 / Improvement of oak wilt disease management / 2009 Fall Symposium of Tree Disease Research Group. Current trends in the research of oak wilt disease and management
Masato Torii / 2014 / The Effect of Raffaelea quercus-mongolicae Inoculations on the Formation of Non-conductive Sapwood of Quercus mongolica / Mycobiology 42 (2) : 210 ~ 21
Kim KH. / 2010 / Tree A. Maintenance / Tree Diagnostic Center, Kangwon National University : 35 ~ 41
Kim YT / 2009 / Screening of endophytic fungi isolated from pine wood for nematicidal activity, and preventive effects against pine wilt disease by trunk injection / Proc. of 2009
Kwon YD. / 2009 / Improvement of oak wilt disease management / 2009 Fall Symposium of Tree Disease Research Group. Current trends in the research of oak wilt disease and management
Masato Torii / 2014 / The Effect of Raffaelea quercus-mongolicae Inoculations on the Formation of Non-conductive Sapwood of Quercus mongolica / Mycobiology 42 (2) : 210 ~ 21
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