Determination of antioxidant capacity, phenolic acid composition and antiproliferative effect associated with phenylalanine ammonia lyase (PAL) activity in some plants naturally growing under salt stress

Şirin, Seda; Aslım, Belma

doi:10.1007/s00044-018-2278-6

Cited by 48 publications

(26 citation statements)

References 56 publications

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“…Selenium is also considered an important activator of the PAL enzyme in plants [49]; therefore, the results observed are consistent with those reported in the literature. The PAL enzyme is the main precursor to the synthesis of phenylpropanoids in plants that act as inhibitors of singlet oxygen formation, free radical scavengers, and reducing agents against abiotic [50] and biotic stress [43]. In this way, the plants can be prepared to cope with some kind of stress, whether biotic or abiotic.…”

Section: Discussionmentioning

confidence: 99%

Impact of Selenium and Copper Nanoparticles on Yield, Antioxidant System, and Fruit Quality of Tomato Plants

Hernández-Hernández

Quiterio-Gutiérrez

Cadenas‐Pliego³

et al. 2019

Plants

125

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The effects of nanoparticles (NPs) on plants are contrasting; these depend on the model plant, the synthesis of the nanoparticles (concentration, size, shape), and the forms of application (foliar, substrate, seeds). For this reason, the objective of this study was to report the impact of different concentrations of selenium (Se) and copper (Cu) NPs on yield, antioxidant capacity, and quality of tomato fruit. The different concentrations of Se and Cu NPs were applied to the substrate every 15 days (five applications). The yield was determined until day 102 after the transplant. Non-enzymatic and enzymatic antioxidant compounds were determined in the leaves and fruits as well as the fruit quality at harvest. The results indicate that tomato yield was increased by up to 21% with 10 mg L−1 of Se NPs. In leaves, Se and Cu NPs increased the content of chlorophyll, vitamin C, glutathione, 2,2′-azino-bis(3-ethylbenzthiazolin-6-sulfonic acid (ABTS), superoxide dismutase (SOD), glutathione peroxidase (GPX) and phenylalanine ammonia liasa (PAL). In fruits, they increased vitamin C, glutathione, flavonoids, firmness, total soluble solids, and titratable acidity. The combination of Se and Cu NPs at optimal concentrations could be a good alternative to improve tomato yield and quality, but more studies are needed to elucidate their effects more clearly.

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Section: Discussionmentioning

confidence: 99%

Impact of Selenium and Copper Nanoparticles on Yield, Antioxidant System, and Fruit Quality of Tomato Plants

Hernández-Hernández

Quiterio-Gutiérrez

Cadenas‐Pliego³

et al. 2019

Plants

125

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“…These compounds play numerous biochemical and molecular roles in the plants, such as signaling molecules, plant defense, mediating auxin transport, antioxidant activity, and free radical scavenging ( Tohidi et al, 2017 ). Among non-enzymatic antioxidants, phenols and flavonoids contribute significantly as scavenging free radicals in the plants for tolerating salt stress by accumulating in various tissues ( Sirin and Aslım, 2019 ). Polyphenols are present in free and bound forms in plant materials.…”

Section: Introductionmentioning

confidence: 99%

Polyphenols, Flavonoids, and Antioxidant Activity Involved in Salt Tolerance in Wheat, Aegilops cylindrica and Their Amphidiploids

2021

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Aegilops spp. is the closest genus to wheat (Triticum spp.), which makes Aegilops great candidates to exhibit precursors of wheat features. Aegilops cylindrica Host displays excellent salt tolerance. In the current study, biochemical and phytochemical compounds in the leaves of two wheat cultivars, one hyper-salt tolerant Ae. cylindrica genotype and their amphidiploids (derived from “Chinese Spring” × Ae. cilindrica and “Roshan” × Ae. cylindrica), grown under control and saline field conditions, were assessed. These compounds included total protein content, proline content, electrolyte leakage, total flavonoid content, total phenolic content, DPPH radical scavenging activity, and reducing power. In addition, phenolic components were also identified using HPLC analysis. Chlorogenic acid, ellagic acid, ferulic acid, syringic acid, vanillic acid, p-coumaric acid, caffeic acid, and gallic acid were the most abundant phenolic acids. Luteolin, apigenin, and rutin were the most abundant flavonoids in the leaves. Salt stress significantly increased all biochemical variables, with the exceptions of reducing power and p-coumaric acid. Interestingly, amphidiploid genotypes exhibited intermediate levels of most of the detected phenolic compounds between the two parental species. As demonstrated by bivariate correlations luteolin, chlorogenic acid, caffeic acid and apigenin could predict inhibition percentage by DPPH assay, suggesting a possible role in the cellular defense against oxidative stress in wheat. The amphidiploids and their wild parent performed significantly better than wheat cultivars on phenolic constituents, flavonoids, and maintaining redox homeostasis under salt stress conditions.

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“…Agami [ 18 ] reported that ascorbate application in barley improved plant growth, relative water content, proline, photosynthetic pigments, enzymatic antioxidants under salt stress. Under salinity stress, polyphenol accumulates in various plant tissues and scavenges free radicals [ 19 ]. Polyphenols regulate plant growth, pigment synthesis, scavenge ROS which help the plant to mitigate abiotic stresses viz.…”

Section: Introductionmentioning

confidence: 99%

Microbial amelioration of salinity stress in HD 2967 wheat cultivar by up-regulating antioxidant defense

Singh

Tiwari

2021

Communicative & Integrative Biology

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An experiment was conducted to investigate the potential of Piriformospora indica and plant growth-promoting bacteria (PGPB) to ameliorate salinity stress in HD 2967 wheat cultivar.Plants were treated with four different levels of salinity viz. 0, 50, 100, and 200 mM NaCl (electrical conductivity value 0.01, 5.84, 11.50 and 21.4 mS cm -1 , respectively) under greenhouse conditions, using a completely randomized design experiment. Plants inoculated with PGPB and P. indica showed decrease in lipid peroxidation, relative membrane permeability and lipoxygenase enzyme (LOX) activity as compared to uninoculated plants.The result of this study showed that PGPB and P. indica inoculated HD 2967 wheat plants accumulated higher content of proline, α-tocopherol and carotenoid as compared to uninoculated plants. The HD 2967 wheat plants either inoculated with PGPB or P. indica showed significantly higher activities of antioxidant enzymes viz. superoxide dismutase, catalase and ascorbate peroxidase than that of the uninoculated plants. Moreover, PGPB inoculated plants showed greater activity of antioxidant enzymes than the plants inoculated with P. indica. Salinity stress tolerance was more pronounced in the PGPB inoculated than P. indica inoculated plants. This study revealed the potentiality of PGPB and P. indica as bio-2 ameliorator under salinity stress, and suggests that this plant microbial association could be a promising biotechnological tool to combat the deleterious effects of salinity stress.

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Determination of antioxidant capacity, phenolic acid composition and antiproliferative effect associated with phenylalanine ammonia lyase (PAL) activity in some plants naturally growing under salt stress

Cited by 48 publications

References 56 publications

Impact of Selenium and Copper Nanoparticles on Yield, Antioxidant System, and Fruit Quality of Tomato Plants

Impact of Selenium and Copper Nanoparticles on Yield, Antioxidant System, and Fruit Quality of Tomato Plants

Polyphenols, Flavonoids, and Antioxidant Activity Involved in Salt Tolerance in Wheat, Aegilops cylindrica and Their Amphidiploids

Microbial amelioration of salinity stress in HD 2967 wheat cultivar by up-regulating antioxidant defense

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