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자료유형
학술저널
저자정보
Xiao H. Lu (Chinese Academy of Medical Sciences and Peking Union Medical College) Xi M. Zhang (Chinese Academy of Medical Sciences and Peking Union Medical College) Xiao L. Jiao (Chinese Academy of Medical Sciences and Peking Union Medical College) Jianjun J. Hao (The University of Maine) Xue S. Zhang (Chinese Academy of Medical Sciences and Peking Union Medical College) Yi Luo (Chinese Academy of Medical Sciences and Peking Union Medical College) Wei W. Gao (Chinese Academy of Medical Sciences and Peking Union Medical College)
저널정보
고려인삼학회 Journal of Ginseng Research Journal of Ginseng Research Vol.44 No.3
발행연도
2020.5
수록면
506 - 518 (13page)

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초록· 키워드

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Background: Red-skin root of Asian ginseng (Panax ginseng) significantly reduces the quality and limits the production of ginseng in China. The disease has long been thought to be a noninfectious physiological disease, except one report that proved itwas an infectious disease. However, the causal agents have not been successfully determined. In the present study, we were to reveal the pathogens that cause red-skin disease.
Methods: Ginseng roots with red-skin root symptoms were collected from commercial fields in Northeast China. Fungi were isolated from the lesion and identified based on morphological characters along with multilocus sequence analyses on internal transcription spacer, b-tubulin (tub2), histone H3 (his3), and translation elongation factor 1a (tef-1a). Pathogens were confirmed by inoculating the isolates in ginseng roots.
Results: A total of 230 isolates were obtained from 209 disease samples. These isolates were classified into 12 species, including Dactylonectria sp., D. hordeicola, Fusarium acuminatum, F. avenaceum, F. solani, F. torulosum, Ilyonectria mors-panacis, I. robusta, Rhexocercosporidium panacis, and three novel species I. changbaiensis, I. communis, and I. qitaiheensis. Among them, I. communis, I. robusta, and F. solani had the highest isolation frequencies, being 36.1%, 20.9%, and 23.9%, respectively. All these species isolated were pathogenic to ginseng roots and caused red-skin root disease under appropriate condition.
Conclusion: Fungal complex is the causal agent of red-skin root in P. ginseng.

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ABSTRACT
1. Introduction
2. Materials and methods
3. Results
4. Discussion
References

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UCI(KEPA) : I410-ECN-0101-2020-524-000843008