Biosynthesis of flavonoids and effects of stress

Winkel-Shirley, Brenda

doi:10.1016/s1369-5266(02)00256-x

Cited by 1,565 publications

(958 citation statements)

References 40 publications

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“…The induction of phenolic compound biosynthesis was observed in pepper in response to Cu (Diaz et al 2001) and in maize in response to Al (Winkel-Shirley 2002). In this study, exogenously applied TRIA and SNP increased the content of phenolic compounds in coriander leaves (Figure 1(A)).…”

Section: Discussionsupporting

confidence: 62%

Study of interaction effect between triacontanol and nitric oxide on alleviating of oxidative stress arsenic toxicity in coriander seedlings

Karam

Keramat

Asrar

et al. 2016

Journal of Plant Interactions

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In this study, triacontanol (TRIA) and nitric oxide (NO) interaction on arsenic (As)-induced oxidative stress tolerance in coriander (Coriandrum sativum L.) plants was investigated. The results showed that As had a significant adverse effect on the plant's biomass. The seedlings pretreated with TRIA and NO significantly increased growth reduction induced by the metalloid. The obtained results indicated that the application of TRIA and sodium nitroprusside (SNP) generally reduced oxidative markers such as of electrolyte leakage percentage, malondialdehyde and H 2 O 2 contents under As toxicity, while application of As treatment without TRIA + SNP increased these oxidative parameters compared to the control. The non-enzymatic antioxidant contents such as total phenol, anthocyanin, carotenoid, ascorbic acid and reduced glutathione (GSH) were extracted and assayed from both control and treated plants. It was found that TRIA + SNP treatments have a profound effect on the antioxidant metabolism and caused an enhancement in non-enzymatic antioxidant potentials under As toxicity in coriander. Moreover, the results revealed a mutually amplifying reaction between TRIA and NO in reducing As-induced damages.ARTICLE HISTORY

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Section: Discussionsupporting

confidence: 62%

Study of interaction effect between triacontanol and nitric oxide on alleviating of oxidative stress arsenic toxicity in coriander seedlings

Karam

Keramat

Asrar

et al. 2016

Journal of Plant Interactions

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“…Among the diverse functions of Phenolics in plants, it has been established earlier that enhancement of phenylopropanoid metabolism and the amount of phenolic compounds can be influenced under different environmental factors and stress conditions (Grace and Logan 2000;Lovala et al 2000;Sakihama and Yamasaki 2002;Cheruiyot et al 2007). The induction of phenolic compound biosynthesis was observed in wheat and maize in response to metal toxicity (Diáz et al 2001;Winkel-Shirley 2002). Parida et al (2004) reported that high salt concentration is a consequence of enhanced accumulation of free amino acids and total phenols.…”

Section: Resultsmentioning

confidence: 99%

RETRACTED ARTICLE: Antioxidants and ROS scavenging ability in ten Darjeeling tea clones may serve as markers for selection of potentially adapted clones against abiotic stress

Dasgupta

Biswas

Kumar

et al. 2013

Physiol Mol Biol Plants

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Ten Darjeeling tea clones (BT15/263, RR17/144, B777, T253, B157, Sundaram, HV39, AV2, K1/1 and TTV1) were collected from the experimental garden of Darjeeling Tea Research and Development Centre, Kurseong. Total phenol, flavonoids and two antioxidating enzymes (peroxidase and superoxide dismutase) were estimated. The total phenol ranged between 241 and 28 GAE mg g −1 of leaf dry weight. The highest amount obtained in four clones, B15/263 (241.47), RR17/144 (221.2), B777 (154.54) and B157 (140.23 mg g −1 ). Flavonoids were estimated as Catechin equivalent (CE) and ranged between 56.88 and 20.81 CE mg g −1 leaf dry weight. Higher amounts occurred in BT15/263 (56.88 mg g −1 ), B777 (56.69) and RR17/144 (48.63). Antioxidant activities were measured following DPPH and ABTS free radicle scavenging procedures and the results were well according to total polyphenol content among the clones (in total phenols, ranges of correlation in DPPH assay were r 2 =0.990-0.989, p≤0.05; in flavonoids r 2 =0.954, p≤0.01-0.987, p≤0.05). Similarly, ABTS percent scavenging results were quiet significant. The IC 50 values were determined for both DPPH and ABTS assay. PAGE expressions of isoforms in two antioxidative enzymes and quantification of them also varied much among the investigated clones. The incidence of total phenols, flavonoids, PRX and SOD and ROS scavenging assay in in-situ condition, might be used as biochemical markers towards the superior adaptability against abiotic stress. In the present work, four clones (B15/263, B777, RR17/144 and B157) would be designated as comparatively better suited to the predicted abiotic stress.

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“…It is not clear if the Zn-induced enhancement of NaCl tolerance is related to the metal's involvement in flavonoid synthesis. However, in salt-stressed plants, flavonoids are thought to act as chelators (Winkel-Shirley 2002). Mineral supplementation has been shown to enhance polyphenol accumulation in Avena sativa, leading to growth maintenance (Ahanger et al 2015).…”

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

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Biosynthesis of flavonoids and effects of stress

Cited by 1,565 publications

References 40 publications

Study of interaction effect between triacontanol and nitric oxide on alleviating of oxidative stress arsenic toxicity in coriander seedlings

Study of interaction effect between triacontanol and nitric oxide on alleviating of oxidative stress arsenic toxicity in coriander seedlings

RETRACTED ARTICLE: Antioxidants and ROS scavenging ability in ten Darjeeling tea clones may serve as markers for selection of potentially adapted clones against abiotic stress

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

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