Singlet oxygen scavenging by leaf flavonoids contributes to sunlight acclimation in Tilia platyphyllos

Majer, Petra; Neugart, Susanne; Krumbein, Angelika; Schreiner, Monika; Hideg, Éva

doi:10.1016/j.envexpbot.2013.12.001

Cited by 80 publications

(69 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Plants maintaining higher flavonoid content show improved photosynthetic efficiency due to rapid, flavonoid-mediated scavenging of superoxide radicals (Majer et al 2014). It is not clear if the Zn-induced enhancement of NaCl tolerance is related to the metal's involvement in flavonoid synthesis.…”

Section: Discussionmentioning

confidence: 99%

Zinc application mitigates the adverse effects of NaCl stress on mustard [Brassica juncea (L.) Czern & Coss] through modulating compatible organic solutes, antioxidant enzymes, and flavonoid content

Ahmad

Ahanger

Alyemeni

et al. 2017

Journal of Plant Interactions

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

Zinc application mitigates the adverse effects of NaCl stress on mustard [Brassica juncea (L.) Czern & Coss] through modulating compatible organic solutes, antioxidant enzymes, and flavonoid content

Ahmad

Ahanger

Alyemeni

et al. 2017

Journal of Plant Interactions

View full text Add to dashboard Cite

“…19 Diuretic, stomachic, antispasmodic, sedative, antioxidant, hepatoprotective and anti-neuralgic properties are some of them. 19 In vitro 20 and in vivo 19 antioxidant activities of the aqueous extract obtained, respectively, from leaves and flowers were previously described, in the last case by using animal models with ethanol-induced oxidative stress. The most abundant phenolic compounds in this species have been referred to as flavonoids (namely quercetin and kaempferol derivatives).…”

Section: Introductionmentioning

confidence: 99%

“…The most abundant phenolic compounds in this species have been referred to as flavonoids (namely quercetin and kaempferol derivatives). 20,21 Once again, and on the same lines as E. giganteum, different types of solvents (namely, ethanol : water) were used by the authors in the extraction procedures, and therefore different classes and relative abundances of phenolic compounds present were determined. Thus, the present study aims to correlate the phenolic composition of both the mentioned plant species with their antioxidant, anti-inflammatory and antitumor potential, evaluated using hydroethanolic extracts.…”

Section: Introductionmentioning

confidence: 99%

Contribution of the phenolic composition to the antioxidant, anti-inflammatory and antitumor potential of Equisetum giganteum L. and Tilia platyphyllos Scop.

et al. 2017

View full text Add to dashboard Cite

a Naturally-occurring phytochemicals have received pivotal attention in the last few years, due to the increasing evidence of biological activities. Thus, in the present study, the antioxidant, anti-inflammatory and antitumor potentials of hydroethanolic extracts rich in phenolic compounds obtained from Equisetum giganteum L. and Tilia platyphyllos Scop. were assessed and directly correlated with their content of phenolic compounds, by using HPLC-DAD-ESI/MS analysis. T. platyphyllos showed the higher bioactive potential, evaluated in terms of antioxidant (radical scavenging effects -105 μg mL −1 , reducing power -123 μg mL −1 , β-carotene bleaching inhibition -167 μg mL −1 , and lipid peroxidation inhibition -), anti-inflammatory (225 μg mL −1 inhibited 50% of nitric oxide production) and antitumor (breast -224 μg mL −1 ; lung -247 μg mL −1 ; cervical -195 μg mL −1 and hepatocellular -173 μg mL −1 carcinoma cells) activity, without having cytotoxic effects (>400 μg mL −1 ). These biological properties were positively correlated with its content and composition of phenolic compounds. Flavonoid contents were markedly higher than the content of phenolic acids, in both samples, being respectively 50.4 mg g −1 and 11.65 mg g −1 for T. platyphyllos, and 21.7 mg g −1 and 4.98 mg g −1 for E. giganteum. Moreover, while in E. giganteum extract, kaempferol-O-glucoside-O-rutinoside was the most abundant flavonoid, in T. platyphyllos extract protocatechuic acid and (−)-epicatechin were the most abundant phenolic acid and flavonoid, respectively. In relation to their content of phenolic acids, protocatechuic and caffeic acids existed in higher abundance in T. platyphyllos and E. giganteum hydroethanolic extracts, respectively.However, it would be interesting to evaluate the in vivo efficacy of both plant extracts to unveil the involved modes of action and to establish effective therapeutic doses.

show abstract

“…Acclimation to sunlight includes a variety of metabolic responses [11]. Among these, flavonoids provide multiple roles in photoprotection as potential UV absorbers and as antioxidants [12][13][14][15]. According to their micro-localization in leaf tissues, flavonoids are expected to aid both physical (screening) or chemical (antioxidant) defense functions.…”

Section: Introductionmentioning

confidence: 99%

Main Leaf Polyphenolic Components of Berry Color Variant Grapevines and Their Acclimative Responses to Sunlight Exposure

Kocsis

Abrankó²,

Ayaydin³

et al. 2015

Applied Sciences

View full text Add to dashboard Cite

Grapevine leaf synthesizes a wide variety of bioactive secondary metabolites, including polyphenols, which are also key components in ensuring development and growth of the whole plant even under adverse environmental conditions. Our study evaluates the nonanthocyanin polyphenolic composition in grapevine leaves of three varieties of Gohér conculta (Vitis vinifera L.) native to Hungary. A high performance liquid chromatography (HPLC) system including a diode array detector (DAD) coupled to a time-of-flight mass spectrometer (q-TOFMS) was successfully applied to profile intact glycoconjugate forms in samples. In-source fragmentation was utilized in order to provide structural information on the compounds. Using this method, the presence of 16 polyphenolic metabolites were confirmed, and eight of them were subjected to further quantification in sun acclimated and half shaded leaves. Intracellular microimaging detected accumulation of flavonols in cell nuclei, cell wall and chloroplasts. Our findings demonstrated that Gohér conculta-a special grapevine taxon of our viticultural heritage with berry color variants-is a suitable model to OPEN ACCESSAppl. Sci. 2015Sci. , 5 1956 study the interaction between genetic and environmental factors in determination of grapevine phenolic composition.

show abstract

Singlet oxygen scavenging by leaf flavonoids contributes to sunlight acclimation in Tilia platyphyllos

Cited by 80 publications

References 66 publications

Zinc application mitigates the adverse effects of NaCl stress on mustard [Brassica juncea (L.) Czern & Coss] through modulating compatible organic solutes, antioxidant enzymes, and flavonoid content

Zinc application mitigates the adverse effects of NaCl stress on mustard [Brassica juncea (L.) Czern & Coss] through modulating compatible organic solutes, antioxidant enzymes, and flavonoid content

Contribution of the phenolic composition to the antioxidant, anti-inflammatory and antitumor potential of Equisetum giganteum L. and Tilia platyphyllos Scop.

Main Leaf Polyphenolic Components of Berry Color Variant Grapevines and Their Acclimative Responses to Sunlight Exposure

Contact Info

Product

Resources

About