지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.4
- 수록면
- 136 - 145 (10page)
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초록· 키워드
오류제보하기
Background: This study aimed to develop a biocontrol system for ginseng root rot caused by Fusarium cf. incarnatum.
Methods: In total, 392 bacteria isolated from ginseng roots and various soils were screened for their antifungal activity against the fungal pathogen, and a bacterial isolate (B2-5) was selected as a promising candidate for the biocontrol because of the strong antagonistic activity of the bacterial cell suspension and culture filtrate against pathogen.
Results: The bacterial isolate B2-5 displayed an enhanced inhibitory activity against the pathogen mycelial growth with a temperature increase to 25C, produced no pectinase (related to root rotting) and no critical rot symptoms at low [10<SUP>6</SUP> colony-forming units (CFU)/mL] and high (10<SUP>8</SUP> CFU/mL) inoculum concentrations. In pot experiments, pretreatment with the bacterial isolate in the presumed optimal time for disease control reduced disease severity significantly with a higher control efficacy at an inoculum concentration of 10<SUP>6</SUP> CFU/mL than at 10<SUP>8</SUP> CFU/mL. The establishment and colonization ability of the bacterial isolates on the ginseng rhizosphere appeared to be higher when both the bacterial isolate and the pathogen were coinoculated than when the bacterial isolate was inoculated alone, suggesting its target-oriented biocontrol activity against the pathogen. Scanning electron microscopy showed that the pathogen hyphae were twisted and shriveled by the bacterial treatment, which may be a symptom of direct damage by antifungal substances.
Conclusion: All of these results suggest that the bacterial isolate has good potential as a microbial agent for the biocontrol of the ginseng root rot caused by F. cf. incarnatum.
Methods: In total, 392 bacteria isolated from ginseng roots and various soils were screened for their antifungal activity against the fungal pathogen, and a bacterial isolate (B2-5) was selected as a promising candidate for the biocontrol because of the strong antagonistic activity of the bacterial cell suspension and culture filtrate against pathogen.
Results: The bacterial isolate B2-5 displayed an enhanced inhibitory activity against the pathogen mycelial growth with a temperature increase to 25C, produced no pectinase (related to root rotting) and no critical rot symptoms at low [10<SUP>6</SUP> colony-forming units (CFU)/mL] and high (10<SUP>8</SUP> CFU/mL) inoculum concentrations. In pot experiments, pretreatment with the bacterial isolate in the presumed optimal time for disease control reduced disease severity significantly with a higher control efficacy at an inoculum concentration of 10<SUP>6</SUP> CFU/mL than at 10<SUP>8</SUP> CFU/mL. The establishment and colonization ability of the bacterial isolates on the ginseng rhizosphere appeared to be higher when both the bacterial isolate and the pathogen were coinoculated than when the bacterial isolate was inoculated alone, suggesting its target-oriented biocontrol activity against the pathogen. Scanning electron microscopy showed that the pathogen hyphae were twisted and shriveled by the bacterial treatment, which may be a symptom of direct damage by antifungal substances.
Conclusion: All of these results suggest that the bacterial isolate has good potential as a microbial agent for the biocontrol of the ginseng root rot caused by F. cf. incarnatum.
목차
abstract
1. Introduction
2. Materials and methods
3. Results
4. Discussion
References
참고문헌 (45)
참고문헌 신청
1. [학술지(정기간행물)] - Ho Jae Park / 2012 / Ginseng in the traditional herbal prescriptions / Journal of Ginseng Research 36 (3) : 225 ~ 241
2. [학술지(정기간행물)] - 김종훈 / 2012 / Cardiovascular Diseases and Panax ginseng: A Review on Molecular Mechanisms and Medical Applications / Journal of Ginseng Research 36 (1) : 16 ~ 26
3. [학술지(정기간행물)] - 원해단 / 2012 / Ginseng and Diabetes: The Evidences from In Vitro, Animal and Human Studies / Journal of Ginseng Research 36 (1) : 27 ~ 39
4. [학술지(정기간행물)] - Kim JH / 2006 / The rootlesion nematode, Pratylenchus subpenetrans, on ginseng (Panax ginseng) in Korea / Nematology 8 : 637 ~ 639
5. [학술지(정기간행물)] - 이순구 / 2004 / 인삼 뿌리썩음병 관련 Fusarium species와 그 병원성 / 식물병 연구 10 (4) : 248 ~ 259
2. [학술지(정기간행물)] - 김종훈 / 2012 / Cardiovascular Diseases and Panax ginseng: A Review on Molecular Mechanisms and Medical Applications / Journal of Ginseng Research 36 (1) : 16 ~ 26
3. [학술지(정기간행물)] - 원해단 / 2012 / Ginseng and Diabetes: The Evidences from In Vitro, Animal and Human Studies / Journal of Ginseng Research 36 (1) : 27 ~ 39
4. [학술지(정기간행물)] - Kim JH / 2006 / The rootlesion nematode, Pratylenchus subpenetrans, on ginseng (Panax ginseng) in Korea / Nematology 8 : 637 ~ 639
5. [학술지(정기간행물)] - 이순구 / 2004 / 인삼 뿌리썩음병 관련 Fusarium species와 그 병원성 / 식물병 연구 10 (4) : 248 ~ 259
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UCI(KEPA) : I410-ECN-0101-2018-524-001597257