Phenolic compounds responding to zinc and/or cadmium treatments in Gynura pseudochina (L.) DC. extracts and biomass

Mongkhonsin, Bodin; Hokura, Akiko; Nuengchamnong, Nitra; Maneechai, Suthira

doi:10.1016/j.plaphy.2016.10.027

Cited by 51 publications

(24 citation statements)

References 73 publications

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“…Chlorogenic acid, among other phenolics, was found in the roots in woody plants as potential aluminum-detoxifying agents [5]. The study of Mongkhonsin et al revealed that not only the increase in the level of phenolic compounds but also the lignification process played crucial roles in protecting G. pseudochina against an excess of Zn [6]. Among the phenolic compounds that were engaged in the esterification of the cell wall were derivatives of caffeic acid, including chlorogenic acid.…”

Section: Introductionmentioning

confidence: 99%

Zn(II) Complex of Plant Phenolic Chlorogenic Acid: Antioxidant, Antimicrobial and Structural Studies

et al. 2020

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The structure of the Zn(II) complex of 5-caffeoylquinic acid (chlorogenic acid, 5-CQA) and the type of interaction between the Zn(II) cation and the ligand were studied by means of various experimental and theoretical methods, i.e., electronic absorption spectroscopy UV/Vis, infrared spectroscopy FT-IR, elemental, thermogravimetric and density functional theory (DFT) calculations at B3LYP/6-31G(d) level. DPPH (2,2-diphenyl-1-picrylhydrazyl), ABTS (2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid), FRAP (ferric reducing antioxidant power), CUPRAC (cupric reducing antioxidant power) and trolox oxidation assays were applied in study of the anti-/pro-oxidant properties of Zn(II) 5-CQA and 5-CQA. The antimicrobial activity of these compounds against Escherichia coli, Pseudomonas aeruginosa, Bacillus subtilis, Staphylococcus aureus, Salmonella enteritidis and Candida albicans was tested. An effect of Zn(II) chelation by chlorogenic acid on the anti-/pro-oxidant and antimicrobial activities of the ligand was discussed. Moreover, the mechanism of the antioxidant properties of Zn(II) 5-CQA and 5-CQA were studied on the basis of the theoretical energy descriptors and thermochemical parameters. Zn(II) chlorogenate showed better antioxidant activity than chlorogenic acid and commonly applied natural (L-ascorbic acid) and synthetic antioxidants (butylated hydroxyanisol (BHA) and butylated hydroxytoluene (BHT)). The pro-oxidant activity of Zn(II) 5-CQA was higher than the ligand and increased with the rise of the compound concentration The type of Zn(II) coordination by the chlorogenate ligand strongly affected the antioxidant activity of the complex.

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Section: Introductionmentioning

confidence: 99%

Zn(II) Complex of Plant Phenolic Chlorogenic Acid: Antioxidant, Antimicrobial and Structural Studies

et al. 2020

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“…However, in addition to enhanced GSH content accumulation of Shikimate was observed in psp-17 mutant upon Cd exposure at day (Figures 8, 9 and Supplementary Table S2). The increase in Shikimate content could have improved scavenging of ROS by phenolic compounds in psp-17 mutant (Kısa et al, 2016; Mongkhonsin et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

Knock-Down of the Phosphoserine Phosphatase Gene Effects Rather N- Than S-Metabolism in Arabidopsis thaliana

et al. 2018

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The aim of present study was to elucidate the significance of the phosphorylated pathway of Ser production for Cys biosynthesis in leaves at day and night and upon cadmium (Cd) exposure. For this purpose, Arabidopsis wildtype plants as control and its psp mutant knocked-down in phosphoserine phosphatase (PSP) were used to test if (i) photorespiratory Ser is the dominant precursor of Cys synthesis in autotrophic tissue in the light, (ii) the phosphorylated pathway of Ser production can take over Ser biosynthesis in leaves at night, and (iii) Cd exposure stimulates Cys and glutathione (GSH) biosynthesis and effects the crosstalk of S and N metabolism, irrespective of the Ser source. Glycine (Gly) and Ser contents were not affected by reduction of the psp transcript level confirming that the photorespiratory pathway is the main route of Ser synthesis. The reduction of the PSP transcript level in the mutant did not affect day/night regulation of sulfur fluxes while day/night fluctuation of sulfur metabolite amounts were no longer observed, presumably due to slower turnover of sulfur metabolites in the mutant. Enhanced contents of non-protein thiols in both genotypes and of GSH only in the psp mutant were observed upon Cd treatment. Mutation of the phosphorylated pathway of Ser biosynthesis caused an accumulation of alanine, aspartate, lysine and a decrease of branched-chain amino acids. Knock-down of the PSP gene induced additional defense mechanisms against Cd toxicity that differ from those of WT plants.

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“…Total flavonoid content (TFC) was measured spectrophotometrically using aluminum chloride complex colorimetric assay method Krishnan et al, 2015;Mongkhonsin et al, 2016;Wu et al, 2011). The samples were weighed 1 g into 50 mL conical tube and extracted with 10 mL of 100% methanol at room temperature for 24 h and centrifuged at 7,000 rpm for 10 min.…”

Section: Total Flavonoid Contentmentioning

confidence: 99%

“…In Gynura procumbens (G. procumbens), lead compounds, namely caffeic acid and kaempferol, represent the large secondary metabolites contributed to plant-environmental interactions, particularly in biotic-abiotic stress responses (Altemimi et al, 2017;Noviyanti et al, 2017;Ramawat et al, 2009). Synthesis and accumulation of these compounds and other derivatives, such as ferulic acid and quercetin, in plant tissues are dependent on plant organ, developmental stage and environmental factors (Cheynier et al, 2013;Galieni et al, 2015;Michalak, 2006;Mongkhonsin et al, 2016;. Among the factors, light, temperature, water, N and K are the best characterized although the relations involving these factors have proven to be complex.…”

Section: Introductionmentioning

confidence: 99%

Assessment of growth and phytochemical quality of Gynura procumbens through nitrogen, potassium fertilization and evapotranspiration replacement interaction

Bukhori

Jaafar

Ghasemzadeh

et al. 2020

APJMBB

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Despite the progressive reports on potential pharmacological properties of G. procumbens, the importance of agronomic requirements to produce high yields and phytochemical content that may vary due to environmental variations are often overlooked. Therefore, this study was conducted to examine the effects of N, K and ER interaction on the growth and phytochemical content of G. procumbens. The study was a three-factorial experiment; two rates of N and K, four rates of ER and three H time. The treatments have affected plant growth and phytochemical content significantly (p≤0.05) with stronger effect on physiology and biochemical attributes (p≤0.01). The study has shown discrete effect on growth, physiology, and phytochemicals content with N0K30>N90K0 and ER 75>50>100>25% treatment. The highest and lowest yield of plant biomass and phytochemical were observed under N0K30(70) and N90K0(25), respectively. The results have shown that the interaction and effect of treatments are highly significant (p≤0.0001) in Cond, CNB, TChlC, TPrC and TFC analysis, (p≤0.05) in NoL, CF and PWP, and not significant in TLA, Photo, TCC, TLC and TPC. The 75% ER has produced significant output of biomass as well as phytochemical content. The study also showed that low rate of N, moderate rate of K with 75% ER have produced high biomass as well as phytochemical content. Meanwhile, caffeic acid and kaempferol were demonstrated as the lead secondary metabolite compounds in this study.

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Phenolic compounds responding to zinc and/or cadmium treatments in Gynura pseudochina (L.) DC. extracts and biomass

Cited by 51 publications

References 73 publications

Zn(II) Complex of Plant Phenolic Chlorogenic Acid: Antioxidant, Antimicrobial and Structural Studies

Zn(II) Complex of Plant Phenolic Chlorogenic Acid: Antioxidant, Antimicrobial and Structural Studies

Knock-Down of the Phosphoserine Phosphatase Gene Effects Rather N- Than S-Metabolism in Arabidopsis thaliana

Assessment of growth and phytochemical quality of Gynura procumbens through nitrogen, potassium fertilization and evapotranspiration replacement interaction

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