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적변삼으로부터 분리한 내생세균의 동정 및 적변 유발 : Identification of Endophytic Bacteria Isolated from Rusty-colored Root of Korean Ginseng(Panax ginseng) and Its Induction
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- Authors
- Issue Date
- 2005
- Publisher
- 한국약용작물학회
- Citation
- 한국약용작물학회지, Vol.13 No.1, pp.1-5
- Abstract
- While the rusty-colored root is common in ginsengs culture and, often results in a severe economic loss, the
major factors have not been found. This study was focused on the determination of a potential relationship between rusty
root and endophytic bacteria. The number of endophytes was 9.6 × 101~1.5 × 102 cfu/g fw in normal ginseng roots compared
to 3.7 × 106~5.1 × 107 cfu/g fw in rusty ones. Of 31 isolates from rusty ginseng roots, twenty-four isolates repeatedly induced
severe to moderate rust on root while seven isolates induced slight rust. The bacteria responsible for rusty ginseng roots were
mainly Gram negative aerobic. Rust inducing bacteria were identified as Agrobacterium tumefaciens, A. rhizogenes,
Burkholderia phenazinium, Ensifer adharens, Lysobacter gummosus, Microbacterium luteolum, M. oxydans, Pseudomonas
marginalis, P. veronii, Pseudomonas sp., Rhizobium leguminosarum, R. tropica, Rhodococcus erythropolis, Rh. globerulus, Variovorax
paradoxus on the basis of bacteriological characters and 16S rDNA sequences analysis. The results in this study
strongly suggested that the rusty ginseng roots were produced by infection and growth of endophytic bacteria.
- ISSN
- 1225-9306
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