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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 제34권 제5호
- 발행연도
- 2018.1
- 수록면
- 376 - 381 (6page)
이용수
초록· 키워드
오류제보하기
For the control of oak wilt caused by Raffaelea quercus-mongolicae, an antifungal microorganism, Streptomyces blastmyceticus, was used as a potential agent. Culture suspension of S. blastmyceticus was injected into Quercus mongolicae in the research forest of Kangwon National University by ChemJet Ⓡ trunk injection and Macro-infusion at root flare injection. Alamo Ⓡ (a.i., propiconazole 14.5%), a fungicide currently used for the control of oak wilt in USA, was also treated by both methods to compare the efficacy. For preventive efficacy, culture suspension of the pathogen was inoculated at 1 month after injection of either agent. Tested trees were cut at 3 months after treatment, stained with 1% Fuchsin acid, and then non-conductive area (NCA) and re-isolation frequency (RIF) of oak wilt fungus were compared among treatments. While NCA was the highest as 47.3% in pathogen only treatment, it was the lowest as 16.0% in sterilized water treatment by Macro-infusion. NCAs of Alamo treatment by Macro-infusion and ChemJet injection were 25.3% and 32.1%, respectively. NCA of S.blastmyceticus treatment by ChemJet injection was 32.3%, similar with Alamo treatment’s by ChemJet injection. All treatments by either injection method showed significantly lower NCA compared to the pathogen only treatment. These results indicate that S. blastmyceticus injection shows the preventive efficacy against oak wilt disease by suppressing the growth of pathogen injected. NCA of Macro-infusion injection of sterilized water was lower as 16.0%, compared to 21.3% of ChemJet injection. It means that Macro-infusion is more effective in translocation of sterilized water than ChemJet injection by even distribution. RIF from wood discs of treated trees showed high in pathogen only treatment, but relatively low in S. blastmyceticus treatment. RIF results were correlated with NCA results. From the above results, it was confirmed that S. blastmyceticus showed preventive efficacy against oak wilt disease by ChemJet trunk or Macro-infusion at root flare injection.
목차
등록된 정보가 없습니다.
참고문헌 (2)
참고문헌 신청
Masato Torii / 2014 / The Effect of Raffaelea quercus-mongolicae Inoculations on the Formation of Non-conductive Sapwood of Quercus mongolica / Mycobiology 42(2):210~214
이수희 / 2017 / In vivo Pathogenicity Test of Oak Wilt Fungus (Raffaelea quercus-mongolicae) on Oriental Chestnut Oak (Quercus acutissima) / Journal of forest and environmental science 33(4):342~347
이수희 / 2017 / In vivo Pathogenicity Test of Oak Wilt Fungus (Raffaelea quercus-mongolicae) on Oriental Chestnut Oak (Quercus acutissima) / Journal of forest and environmental science 33(4):342~347
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