Effects of calcium application on the yields of flavonoids and saponins in <i>Panax notoginseng</i> under cadmium stress

Zu, Yanqun; Mei, Xinyue; Ли, Бо; Tao, Li; Li, Qi; Li, Qin; Yang, Zhiqing

doi:10.1080/03067319.2020.1781835

Cited by 11 publications

(8 citation statements)

References 10 publications

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“…Flavonoids are one of the most frequently isolated secondary metabolites from the leaves of these two plants ( Ya et al, 2010;Niu et al, 2020). Although saponin content is rarely found in the leaves of these two plants, they are usually positively related to flavonoid content (Bhardwaj et al, 2019;Stankovic et al, 2019;Zu et al, 2020). The object of this study was to determine the effect of lighting spectra 3 on the synthesized performance of medicinal plants.…”

Section: Academicpresmentioning

confidence: 99%

Light-emitting diode spectra modify nutritional status, physiological response, and secondary metabolites in Ficus hirta and Alpinia oxyphylla

Zhou

Shang

Feiyu

et al. 2021

Not Bot Horti Agrobo

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Lighting spectrum is one of the key factors that determine biomass production and secondary-metabolism accumulation in medicinal plants under artificial cultivation conditions. Ficus hirta and Alpinia oxyphylla seedlings were cultured with blue (10% red, 10% green, 70% blue), green (20% red, 10% green, 30% blue), and red-enriched (30% red, 10% green, 20% blue) lights in a wide bandwidth of 400-700 nm. F. hirta seedlings had lower diameter, fine root length, leaf area, biomass, shoot nutrient (N) and phosphorus concentrations in the blue-light spectrum compared to the red- and green-light spectra. In contrast, A. oxyphylla seedlings showed significantly higher concentrations of foliar flavonoids and saponins in red-light spectrum with rare responses in N, chlorophyll, soluble sugars, and starch concentrations. F. hirta is easily and negatively impacted by blue-light spectrum but A. oxyphylla is suitably used to produce flavonoid and saponins in red-light spectrum across a wide bandwidth.

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Section: Academicpresmentioning

confidence: 99%

Light-emitting diode spectra modify nutritional status, physiological response, and secondary metabolites in Ficus hirta and Alpinia oxyphylla

Zhou

Shang

Feiyu

et al. 2021

Not Bot Horti Agrobo

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“…It is consistent with the result that Cd stress will reduce the content of flavonoids in this study. And The expression levels of chalcone synthase (CHS) and ketone reductase (CHI) related to flavonoid metabolism were up-regulated and the flavonoid synthesis in plants was promoted by increasing the expression levels of flavonoid metabolism-related enzyme genes 25 , 50 . There was no significant difference in flavonoid contents among different concentrations of oxalic acid spraying except for 0 and 3750 kg hm −2 lime application.…”

Section: Discussionmentioning

confidence: 99%

“…When oxalic acid was applied to Arabidopsis, it was found that Ca 2+ decreased significantly at the concentration of 10 mmol L −1 , and the CRT gene family affecting Ca 2+ signal transduction responded strongly 20 . And the accumulation of some previous studies let us determine the concentration of this test and continue to explore the interaction effect of exogenous additives on Ca 2+ and Cd 2+ 23 – 25 . Therefore, we aimed to investigate the regulatory mechanisms underlying the effects of exogenously applied lime and foliar spray of oxalic acid on the Cd content and stress resistance of P. notoginseng in Cd contaminated soils, and to further explore better ways to guarantee the medicinal quality and yield of P. notoginseng .…”

Section: Introductionmentioning

confidence: 99%

Effects of lime and oxalic acid on antioxidant enzymes and active components of Panax notoginseng under cadmium stress

Jiang

Mei

et al. 2022

Sci Rep

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Cadmium (Cd) pollution poses potential safety risks for Panax notoginseng cultivation, a medicinal plant in Yunnan. Under exogenous Cd stress, field experiments were conducted to understand the effects of lime (0, 750, 2250 and 3750 kg hm−2) applied and oxalic acid (0, 0.1 and 0.2 mol L−1) leaves sprayed on Cd accumulation, antioxidant system and medicinal components of P. notoginseng. The results showed that Lime and foliar spray of oxalic acid were able to elevate Ca2+ and alleviate Cd2+ toxicity in P. notoginseng under Cd stress. The addition of lime and oxalic acid increased the activities of antioxidant enzymes and alters osmoregulator metabolism. The most significant increase in CAT activities increased by 2.77 folds. And the highest increase of SOD activities was 1.78 folds under the application of oxalic acid. While MDA content decreased by 58.38%. There were very significant correlation with soluble sugar, free amino acid, proline and soluble protein. Lime and oxalic acid were able to increase calcium ions (Ca2+), decrease Cd content and improve the stress resistance of P. notoginseng, while increasing the production of total saponins and flavonoids. Cd content were the lowest, 68.57% lower than controls, and met the standard value (Cd ≤ 0.5 mg kg−1, GB/T 19086-2008). The proportion of SPN was 7.73%, which reached the highest level of all treatments, the flavonoids content increased significantly by 21.74%, which reached the medicinal standard value and optimal yield.

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“…Phenols significantly decreased with liming treatment. Likewise, Zu et al [37] found a decrease in the flavonoid content of Panax notoginseng with calcium and lime application under cadmium stress. Although calcium seems to have an inhibitory effect on important enzymes in the phenolic pathway, it seems that the greater amount of cadmium in the roots inhibited the absorption of calcium and influenced flavonoid content.…”

Section: Total Phenols In Hop Conesmentioning

confidence: 91%

The Phenolic Composition of Hops (Humulus lupulus L.) Was Highly Influenced by Cultivar and Year and Little by Soil Liming or Foliar Spray Rich in Nutrients or Algae

et al. 2022

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The interest in expanding the production of hops outside the traditional cultivation regions, mainly motivated by the growth of the craft brewery business, justifies the intensification of studies into its adaptation to local growing conditions. In this study, four field trials were undertaken on a twenty-year-old hop garden, over periods of up to three years to assess the effect of important agro-environmental variation factors on hop phenol and phenolic composition and to establish its relationship with the elemental composition of hop cones. All the field trials were arranged as factorial designs exploring the combined effect of: (1) plots of different vigour plants × year; (2) plots of different plant vigor × algae- and nutrient-rich foliar sprays × year; (3) plot × liming × year; and (4) cultivars (Nugget, Cascade, Columbus) × year. Total phenols in hops, were significantly influenced by most of the experimental factors. Foliar spraying and liming were the factors that least influenced the measured variables. The year had the greatest effect on the accumulation of total phenols in hop cones in the different trials and may have contributed to interactions that often occurred between the factors under study. The year average for total phenol concentrations in hop cones ranged from 11.9 mg g−1 to 21.2 mg g−1. Significant differences in quantity and composition of phenolic compounds in hop cones were also found between cultivars. The phenolic compounds identified were mainly flavonols (quercetin and kaempferol glycosides) and phenolic carboxylic acids (p-coumaric and caffeic acids).

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Effects of calcium application on the yields of flavonoids and saponins in Panax notoginseng under cadmium stress

Cited by 11 publications

References 10 publications

Light-emitting diode spectra modify nutritional status, physiological response, and secondary metabolites in Ficus hirta and Alpinia oxyphylla

Light-emitting diode spectra modify nutritional status, physiological response, and secondary metabolites in Ficus hirta and Alpinia oxyphylla

Effects of lime and oxalic acid on antioxidant enzymes and active components of Panax notoginseng under cadmium stress

The Phenolic Composition of Hops (Humulus lupulus L.) Was Highly Influenced by Cultivar and Year and Little by Soil Liming or Foliar Spray Rich in Nutrients or Algae

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