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KMID : 0352720060300040206
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Journal of Ginseng Research
2006 Volume.30 No. 4 p.206 ~ p.211
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The Rate and Morphology of Mycorrhizal Infection in the Wild Ginseng (Panax ginseng C.A. Meyer) Collected from Various Locations in Korea
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Lee Kyu-Hwa
Lee Kyeong-Jun
Park Hoon
Budi Sri Wilarso
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Abstract
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To investigate mycorrhizal infection by arbuscular mycorrhizal fungi(AMF), samples of fine lateral roots were taken from the wild ginseng(Panax ginseng C.A. Meyer) naturally growing at various locations in Korea. Mycorrhiazal infections were studied by cleaning the root samples and staining fungal hyphae with frypan blue. Wild ginsengs for this study were graded by an appraisal committee consisting of 12 experts of Korea Mountain Ginseng Association. Following five quality groups were recognized: Heaven group(pure natural), Earth group (from seeding of wild ginseng), Man group(from seeding or seedlings of wild ginseng with slight environmental modification), unmarketable, and imported wild ginseng. Morphology of AMF was typical Paris-type which shows intracellular hyphal coils with rare vesicles and lack of arbuscules. Average infection rate of individual wild ginsengs was 58.3% and showed no differences among five quality groups. When portions of fine roots were quantified for mycorrhizal infection, 18.7% of the total length of the primary and secondary roots were infected by AMF. Wild ginsengs from Gyeonggi Province(84.2%), and from mountains lower than 1,200 meters above sea level(about 70%) showed higher infection rate, while the ginseng from Gyeongbuk Province(27.8%) had lower rate. Wild ginsengs at older age showed lower infection rates.
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KEYWORD
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wild ginseng, Panax ginseng C.A. Meyer, mycorrhizal infection, Arbuscular-Mycorrhizal Fungi
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