• Proceedings of the Korean Society of Plant Biotechnology Conference
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• 2005.04a
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• pp.140-140
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• 2005

• Proceedings of the Korean Society of Crop Science Conference
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• 1987.06a
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• pp.70-71
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• 1987

• 한국약용작물학회:학술대회논문집
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• 2009.05a
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• pp.181-182
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• 2009

• 한국약용작물학회:학술대회논문집
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• 2009.05a
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• pp.165-166
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• 2009

• 한국약용작물학회:학술대회논문집
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• 2007.11a
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• pp.284.2-284.2
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• 2007

• 한국약용작물학회:학술대회논문집
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• 2010.10a
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• pp.231-233
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• 2010

• Journal of Life Science
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• v.14 no.3
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• pp.425-428
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• 2004

Molecular authentication and genetic polymorphism of Korean ginseng cultivars and accessions were investigated using ISSR (inter-simple sequence repeat amplification) markers. Five primers among 56 produced clear and reproducible DNA fragments among seven cultivars and accessions. A total of 43 bands ranging from 250 bp to 1,700 bp from five primers were scored. Average number of bands per primer was 8.6 and only nine bands were polymorphic across the six Panax ginseng from Korea. Especially Chunpoong cultivar exhibited the highest level of polymorphism, whereas other accessions did not showed almost any polymorphism. Consequently, these ISSR markers will be available to differentiate Chunpoong cultivar from other major Korean ginseng cultivars and accessions, such as Yunpoong, Hwangsukjong and Jakyungjong, at the DNA level.

• Korean Journal of Medicinal Crop Science
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• v.23 no.5
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• pp.351-356
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• 2015

Background : Ginseng is mainly grown as a break crop in paddy fields after rice has been cultured for approximately 4 - 5 years, because it reduces the negative effects of continuous rice cropping. However, physiological disorders, such as leaf discoloration, occur in ginseng grown in paddy fields with poor drainage and excessive levels of inorganic components. Methods and Results : This study investigated the effect of ridge height on the growth characteristics and yield of 6 year old Panax ginseng. Ridge height was varied by making 20, 30, and 40 cm high ridges in a pooly drained paddy field. Soil moisture content decreased, while electrical conductivity (EC) as the ridge height increased. The $NO_3$, K, Ca, Mg, and Na levels also rose as ridge height increased, but organic matter and $P_2O_4$ levels did not. The leaf discoloration ratio rose as the ridge height increased, and root yield reached a peak when the ridge height was 30 cm. Conclusion : A ridge height of 30 cm in poorly drained paddy field improved ginseng growth by reducing leaf discoloration and increasing root survival, owing to more suitable soil moisture and EC levels.

• Journal of Ginseng Research
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• v.44 no.2
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• pp.312-320
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• 2020

Background: Ginseng (Panax ginseng Meyer) is an essential source of pharmaceuticals and functional foods. Ginseng productivity has been compromised by high light (HL) stress, which is one of the major abiotic stresses during the ginseng cultivation period. The genetic improvement for HL tolerance in ginseng could be facilitated by analyzing its genetic and molecular characteristics associated with HL stress. Methods: Genome-wide analysis of gene expression was performed under HL and recovery conditions in 1-year-old Korean ginseng (P. ginseng cv. Chunpoong) using the Illumina HiSeq platform. After de novo assembly of transcripts, we performed expression profiling and identified differentially expressed genes (DEGs). Furthermore, putative functions of identified DEGs were explored using Gene Ontology terms and Kyoto Encyclopedia of Genes and Genome pathway enrichment analysis. Results: A total of 438 highly expressed DEGs in response to HL stress were identified and selected from 29,184 representative transcripts. Among the DEGs, 326 and 114 transcripts were upregulated and downregulated, respectively. Based on the functional analysis, most upregulated and a significant number of downregulated transcripts were related to stress responses and cellular metabolic processes, respectively. Conclusion: Transcriptome profiling could be a strategy to comprehensively elucidate the genetic and molecular mechanisms of HL tolerance and susceptibility. This study would provide a foundation for developing breeding and metabolic engineering strategies to improve the environmental stress tolerance of ginseng.

• Journal of Ginseng Research
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• v.35 no.3
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• pp.339-343
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• 2011

Polycyclic aromatic hydrocarbons (PAHs) are well known environmental carcinogens. PAH metabolites, especially BaP-7,8- dihydrodiol, 9,10 epoxide, initiate carcinogenesis via high specificity binding to DNA to form DNA adducts. The Korean red ginseng (KRG) from Panax ginseng has been suggested to protect against damages due to PAH exposure but the mechanism is unknown. Therefore, we investigated effects of KRG on PAH exposure using toxicokinetic methods and changes of PAH-induced oxidative damage during a 2 week-clinical trial (n=21 healthy young female, $23.71{\pm}2.43$ years). To analyze antioxidative effects of KRG, we measured changes in the levels of urinary malondialdehyde (MDA) before and after KRG treatment. We observed a significant positive association between levels of urinary MDA and 1-hydroxypyrene, a biomarker of PAH exposures (slope=1.47, p=0.03) and confirmed oxidative stress induced by PAH exposures. A reverse significant correlation between KRG treatment and level of urinary MDA was observed (p=0.03). In summary, results of our clinical trial study suggest that KRG plays a significant role in antioxidative as well as toxicokinetic pathways against PAHs exposure.