Photosynthesis rates, growth, and ginsenoside contents of 2-yr-old Panax ginseng grown at different light transmission rates in a greenhouse

Jang, In-Bae; Lee, Dae-Young; Jin, Yu; Park, Hong-Woo; Mo, Hwang-Sung; Park, Kee-Choon; Hyun, Dong-Yun; Lee, Eung-Ho; Kim, Kee‐Hong; Oh, Chang‐Sik

doi:10.1016/j.jgr.2015.03.007

Cited by 33 publications

(8 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The ginsenoside content of ginseng roots increased as the light transmission rate (LTR) increased. A study of 2-year-old ginseng reported that the total ginsenoside content of ginseng grown at 17% LTR was 49.7% and 68.3% higher than ginseng grown at 6% LTR in August and at final harvest, respectively [38]. These results are consistent with the results of this study.…”

Section: Discussionsupporting

confidence: 92%

The Effects of Environmental Factors on Ginsenoside Biosynthetic Enzyme Gene Expression and Saponin Abundance

et al. 2018

View full text Add to dashboard Cite

Panax ginseng C.A. Meyer is one of the most important medicinal plants in Northeast China, and ginsenosides are the main active ingredients found in medicinal ginseng. The biosynthesis of ginsenosides is regulated by environmental factors and the expression of key enzyme genes. Therefore, in this experiment, ginseng in the leaf opened stage, the green fruit stage, the red fruit stage, and the root growth stage was used as the test material, and nine individual ginsenosides and total saponins (the sum of the individual saponins) were detected by HPLC (High Performance Liquid Chromatography). There was a trend of synergistic increase and decrease, and saponin accumulation and transfer in different tissues. The expression of key enzyme genes in nine synthetic pathways was detected by real-time PCR, and the correlation between saponin content, gene expression, and ecological factors was analyzed. Correlation analysis showed that in root tissue, PAR (Photosynthetically Active Radiation) and soil water potential had a greater impact on ginsenoside accumulation, while in leaf tissue, temperature and relative humidity had a greater impact on ginsenoside accumulation. The results provide a theoretical basis for elucidating the relationship between ecological factors and genetic factors and their impact on the quality of medicinal materials. The results also have guiding significance for realizing the quality of medicinal materials.

show abstract

Section: Discussionsupporting

confidence: 92%

The Effects of Environmental Factors on Ginsenoside Biosynthetic Enzyme Gene Expression and Saponin Abundance

et al. 2018

View full text Add to dashboard Cite

show abstract

“…P . ginseng seedling roots randomly collected from 1 m 2 of each plot under different treatments were dried to calculate yields [33]. Data reflect the mean of triplicates.…”

Section: Methodsmentioning

confidence: 99%

Biofertilizers regulate the soil microbial community and enhance Panax ginseng yields

Dong

et al. 2019

Chin Med

View full text Add to dashboard Cite

Background Panax ginseng is widely used as functional food and traditional Chinese medicine. To satisfy the market supply and medication safety, biofertilizers are used as agents to stimulate the growth and production of P . ginseng . Methods In this study, we used high-throughput sequencing and quantitative polymerase chain reaction to analyze microbial community in soils treated with biofertilizers during the development stages of P . ginseng . Ginsenoside content was detected using high-performance liquid chromatography analysis to evaluate the effects of biofertilizer application. Results In this study, the incidence rate of P . ginseng root rot significantly declined by 40.3–47.3% after application of disease-biocontrol biofertilizers. Bacterial diversity showed increasing trends in soils treated with 3.0–4.5 ml kg −1 of disease-biocontrol biofertilizers compared with those in untreated soils. Principal coordinate analysis ordination revealed that bacterial communities were changed by biofertilizers depending on their application concentration. Relative abundance of potentially beneficial bacterial agents, such as Bacillus , Burkholderia , Rhizobium , Streptomyces , and Mycobacterium , significantly increased compared with that in control. Fusarium of low abundance observed in soils treated with biofertilizers compared with that in untreated soils. P . ginseng yield was enhanced by 17.0–19.1%, and ginsenoside (Rg1 and Rb1) contents were improved after biofertilizer application. Conclusions Our results reveal that biofertilizers reduced the incidence rate of root rot, increased bacterial diversity, promoted the relative abundance of potentially beneficial bacterial taxa, decreased the abundance of potentially harmful bacterial agents, and then enhanced the yield and quality of P . ginseng . Electronic supplementary material The online version of this article (10.1186/s13020-019-0241-1) contains supplementary material, which is available to authorized users.

show abstract

“…The total leaf area per petiole in 'Kowon' (202.4 cm 2 ) was higher than the two control cultivars (Table 1). Many studies have reported that photosynthesis is higher in ginseng with a larger leaf area, which ultimately increases the size of the root (Parmenter and Littlejohn, 2000;Hughes and Proctor, 1981;Jang et al, 2015), and the same is expected in 'Kowon'. The results of the below-ground characteristics of 'Kowon' are presented in Table 2.…”

Section: Growth Characteristics Of the Above-and Below-ground Partsmentioning

confidence: 80%

‘Kowon’, a New Korean Ginseng Cultivars with High Yield and Alternaria Blight Resistance

Kim¹,

Kim²,

Lee³

et al. 2017

HST

View full text Add to dashboard Cite

Recently, there has been increased attention to the development of new plant cultivars with enhanced resistance to biotic and abiotic stress. To develop ginseng cultivars with such traits, systematic breeding programs and comprehensive field studies are prerequisites. In this study, we applied a pure-line selection method to identify a ginseng cultivar with enhanced stress resistance. Phenotypic and agronomic characteristics, seed yield, and physiological responses to biotic and abiotic stresses were investigated according to the guidelines of the International Union for the Protection of New Varieties of Plants (UPOV). In the newly developed 'Kowon' cultivar, the time of emergence, flowering, and berry maturity were intermediate between those of the controls, 'Yunpoong' and 'Chunpoong'. The stem length of 'Kowon' was intermediate, whereas the root length was shorter and the main root diameter was greater than those of 'Chunpoong'. In local adaptability tests conducted in three regions, the yield of 'Kowon' was 666 kg•10a-1 ; 27% and 4% higher than that of 'Chunpoong' and 'Yunpoong'. Diseases such as Alternaria blight, Phytophthora blight, mulberry mealybug, and nematode infestation did not occur in 'Kowon'; and it also exhibited moderate resistance to damping-off and anthracnose. In these cases, yellow spots occurred on aerial parts and the rusty skin of the root, and it exhibited moderate resistance at high temperatures. Our study demonstrates that 'Kowon', which has a high root weight and enhanced biotic/abiotic stress resistance, is a superior cultivar that could increase farmers' income.

show abstract

Photosynthesis rates, growth, and ginsenoside contents of 2-yr-old Panax ginseng grown at different light transmission rates in a greenhouse

Cited by 33 publications

References 22 publications

The Effects of Environmental Factors on Ginsenoside Biosynthetic Enzyme Gene Expression and Saponin Abundance

The Effects of Environmental Factors on Ginsenoside Biosynthetic Enzyme Gene Expression and Saponin Abundance

Biofertilizers regulate the soil microbial community and enhance Panax ginseng yields

‘Kowon’, a New Korean Ginseng Cultivars with High Yield and Alternaria Blight Resistance

Contact Info

Product

Resources

About