Should I stay or should I go: are chlorogenic acids mobilized towards lignin biosynthesis?

Silva, Nathalia Volpi e; Mazzafera, Paulo; Cesarino, Igor

doi:10.1016/j.phytochem.2019.112063

Cited by 65 publications

(50 citation statements)

References 46 publications

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“…Additionally, we identified caffeoylquinic acid isomer (CQA), which belongs to the group of chlorogenic acids, in the roots of both barley cultivars (Figure 2A). In this context, chlorogenic acids function as intermediates in the lignin biosynthesis pathway, and they are regarded as powerful antioxidant compounds [53]. In all treatments, a higher CQA concentration was found in Sebastian roots as compared to those of Scarlett (Figure 2B).…”

Section: Discussionmentioning

confidence: 93%

Silicon Modulates the Production and Composition of Phenols in Barley under Aluminum Stress

et al. 2020

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Silicon (Si) exerts beneficial effects in mitigating aluminum (Al) toxicity in different plant species. These include attenuating oxidative damage and improving structural strengthening as a result of the increased production of secondary metabolites such as phenols. The aim of this research was to evaluate the effect of Si on phenol production and composition in two barley cultivars under Al stress. Our conceptual approach included a hydroponic experiment with an Al-tolerant (Sebastian) and an Al-sensitive (Scarlett) barley cultivar treated with two Al doses (0 or 0.2 mM of Al) and two Si doses (0 or 2 mM) for 21 days. Chemical, biochemical and growth parameters were assayed after harvest. Our results indicated that the Al and Si concentration decreased in both cultivars when Al and Si were added in combination. Silicon increased the antioxidant activity and soluble phenol concentration, but reduced lipid peroxidation irrespective of the Al dose. Both barley cultivars showed changes in culm creep rate, flavonoids and flavones concentration, lignin accumulation and altered lignin composition in Si and Al treatments. We concluded that Si fertilization could increase the resistance of barley to Al toxicity by regulating the metabolism of phenolic compounds with antioxidant and structural functions.

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Section: Discussionmentioning

confidence: 93%

Silicon Modulates the Production and Composition of Phenols in Barley under Aluminum Stress

et al. 2020

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“…Chlorogenic acid (5-caffeoylquinic acid, 5-CQA) is a phenolic compound found in all part of many plants (seeds, roots, tubers, fruits, leaves, flowers or bark) [8][9][10][11][12][13]. 5-CQA plays an important role in defense against biotic and abiotic stress in plants, and is considered to be an intermediate molecule in lignin biosynthesis pathway [14]. Many studies reported accumulation of chlorogenic acid in tissue exposed to different stress factors, e.g., an increase in salinity [15], bacterial infection [16], ultraviolet (UV-B) radiation [17], toxic metals [18,19] and other related with an increase in production of reactive oxygen species (ROS) which damage cellular membrane and react with plant cell components causing disruption of metabolic pathways.…”

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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“…trehalose, dopamine, caffeoylquinic acid, and suberic acid seems to be the markers for the hardness stress. The altered levels of caffeoylquinic acid, an intermediate in the lignin biosynthesis pathway (e Silva, Mazzafera and Cesarino, 2019), and suberin, an effective apoplastic barrier (Vishwanath, Delude, Domergue and Rowland, 2015), seems to be related to cell wall strengthening in response to hardness. Under abiotic stress, lignin accumulation is induced, and its polymers are deposited in cell walls (Srivastava, Vishwakarma, Arafat, Gupta and Khan, 2015; Xu et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

Tomato roots sense horizontal/vertical mechanical impedance and divergently modulate root/shoot metabolome

Kumari

Nongmaithem

Devulapalli

et al. 2021

Preprint

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Plant roots encounter coarse environs right after emergence from the seeds. Little is known about metabolic changes enabling roots to overcome the soil impedance. Tomato seedlings grown vertically or horizontally, at increasing hardness, exhibited lateral roots proliferation, shorter hypocotyls, and primary roots. In primary root tips, hardness-elicited loss of amyloplasts staining; induced ROS and NO accumulation. The levels of IBA, zeatin, jasmonates, and salicylic acids markedly differed in roots and shoots exposed to increasing hardness. Hardness lowered IAA and elevated ABA levels, while increased ethylene emission was confined to horizontally-impeded seedlings. The trajectories of metabolomic shifts distinctly differed between vertically/horizontally-impeded roots/shoots. In horizontal roots, amino acids were the major affected group, while in vertical roots, sugars were the major group. Commonly affected metabolites in roots and shoots, trehalose, dopamine, caffeoylquinic acid, and suberic acid, hallmarked the signature for hardness. Increasing hardness lowered SnRK1a expression in roots/shoots implying regulation of metabolic homeostasis by the SnRK1 signalling module. Our data suggest that though hardness is a common denominator, roots sense the horizontal/vertical orientation and correspondingly modulate metabolite profiles.Significance statementWe show that the tomato roots sense the magnitude of hardness as well as the horizontal and vertical orientation. The hardness divergently modulates the phytohormone and metabolite levels in roots and shoots. The trajectory of the metabolic shift in vertically-grown seedling distinctly differs from horizontally-grown seedlings. ABA and trehalose were the hallmark of hardness stress and may influence metabolic alteration via the SNRK signalling pathway.

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Should I stay or should I go: are chlorogenic acids mobilized towards lignin biosynthesis?

Cited by 65 publications

References 46 publications

Silicon Modulates the Production and Composition of Phenols in Barley under Aluminum Stress

Silicon Modulates the Production and Composition of Phenols in Barley under Aluminum Stress

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

Tomato roots sense horizontal/vertical mechanical impedance and divergently modulate root/shoot metabolome

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