How Exogenous Selenium Affects Anthocyanin
Accumulation and Biosynthesis-Related Gene
Expression in Purple Lettuce

Liu, Dandan; Li, Hui; Wang, Yongzhu; Ying, Zheng-Zheng; Bian, Zhiwei; Zhu, Wenjiao; Liu, Wei; Yang, Lifei; Jiang, Dahua

doi:10.15244/pjoes/66707

Cited by 26 publications

(32 citation statements)

References 17 publications

(17 reference statements)

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“…Although, regarding the complex signal mechanism of Se-regulated stomatal movements, we have no solid literature evidence yet. Occasionally purple discolorations appeared on the leaves of 100 µM selenite-treated Brassica juncea, which could be the results of anthocyanin accumulation (Fig 4 I) as it was reported in maize (Hawrylak-Nowak, 2008) or in purple lettuce (Liu et al, 2017). In the latter species, expressions of genes involved in anthocyanin biosynthesis like UDP glycose flavonoid glycosyl transferase (UFGT) and flavanone 3-hydroxylase (F3H) were upregulated by selenite (Liu et al, 2017).…”

Section: Processes To Reduce the Amount Of Absorbed Se: Stomatal Regumentioning

confidence: 51%

“…Occasionally purple discolorations appeared on the leaves of 100 µM selenite-treated Brassica juncea, which could be the results of anthocyanin accumulation (Fig 4 I) as it was reported in maize (Hawrylak-Nowak, 2008) or in purple lettuce (Liu et al, 2017). In the latter species, expressions of genes involved in anthocyanin biosynthesis like UDP glycose flavonoid glycosyl transferase (UFGT) and flavanone 3-hydroxylase (F3H) were upregulated by selenite (Liu et al, 2017). Because of their competitive uptake system selenite exposure may trigger phosphorous deficiency (Li et al, 2008) which in turn may result in purple pigmentation of the leaves.…”

Section: Processes To Reduce the Amount Of Absorbed Se: Stomatal Regumentioning

confidence: 51%

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Selenite-induced nitro-oxidative stress processes in Arabidopsis thaliana and Brassica juncea

Molnár

Kolbert

Kéri

et al. 2018

Ecotoxicology and Environmental Safety

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Extremes of selenium (Se) exert toxic effects on plants' physiological processes; although plant species tolerate Se differently. This study focuses on the effect of Se (0, 20, 50 or 100μM sodium selenite) on secondary nitro-oxidative stress processes mainly using in situ microscopic methods in non-accumulator Arabidopsis thaliana and secondary Se accumulator Brassica juncea. Relative Se tolerance or sensitivity of the species was evaluated based on growth parameters (fresh and dry weight, root growth) and cell viability. Besides, selenite-triggered cell wall modifications (pectin, callose) and stomatal regulations were determined for the first time. In case of Arabidopsis, relative selenite sensitivity was accompanied by decreased stomatal density and induced stomatal opening, callose accumulation, pronounced oxidative stress and moderate nitrosative modifications. In contrast, the selenite-treated, relatively tolerant Brassica juncea showed larger number of more opened stomata, pectin accumulation, moderate oxidative and intense nitrosative stress. These suggest that selenite tolerance or sensitivity is rather associated with oxidative processes than secondary nitrosative modifications in higher plants.

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Section: Processes To Reduce the Amount Of Absorbed Se: Stomatal Regumentioning

confidence: 51%

Section: Processes To Reduce the Amount Of Absorbed Se: Stomatal Regumentioning

confidence: 51%

Selenite-induced nitro-oxidative stress processes in Arabidopsis thaliana and Brassica juncea

Molnár

Kolbert

Kéri

et al. 2018

Ecotoxicology and Environmental Safety

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“…A significant reduction in anthocyanin contents in selenate treatment can be related to the inhibition of related enzyme activities in anthocyanin biosynthesis or up-regulation of degradation of anthocyanins. 50 Proline accumulation increased in leaves of Se treated plants at tillering stage but decreased significantly at later stages. Proline plays an important role in recovery from number of environmental stresses in plants.…”

Section: Antioxidant Enzymesmentioning

confidence: 88%

“…They can be synthesized under phytotoxic influence of Se and can act as Se toxicity indicators in plant tissues. A significant reduction in anthocyanin contents in selenate treatment can be related to the inhibition of related enzyme activities in anthocyanin biosynthesis or up‐regulation of degradation of anthocyanins . Proline accumulation increased in leaves of Se treated plants at tillering stage but decreased significantly at later stages.…”

Section: Discussionmentioning

confidence: 99%

Influence of selenite and selenate on growth, leaf physiology and antioxidant defense system in wheat (Triticum aestivum L.)

Kaur

Sharma

2018

J Sci Food Agric

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“…The enzyme system consists of superoxide dismutase, glutathione peroxidase, catalase and other antioxidant enzymes. And the non-enzyme system consists of vitamin C, vitamin E, glutathione, cysteine, copper, iron, zinc, selenium and other substances [36,37]. The function of an antioxidant system in an organism is to scavenge excessive free radicals.…”

Section: Discussionmentioning

confidence: 99%

Effects of Selenium Deficiency in the Environment on Antioxidant Systems of Wumen Semi-Fine Wool Sheep

Huo¹,

Wu²,

Song³

et al. 2020

Pol. J. Environ. Stud.

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The Wumeng semi-fine wool sheep industry is the pillar industry in the Wumeng mountainous area. The objective of this study was to explore the effects of selenium deficiency in the environment on the mineral element metabolism and antioxidant system function in grazing Wumen semi-fine wool sheep, and provide scientific and objective data for the reference of the development of Wumen sheep industry. Samples of soil and forage were collected from affected and unaffected areas. Samples of tissue and blood were collected from affected and healthy sheep. The samples were used for hematological parameters and biochemical index analyses and mineral nutrient measurements. The results showed that concentrations of selenium (Se) in the soil and forage samples from the affected area were significantly lower than those from the unaffected area (P<0.01). The selenium concentrations of blood, liver and wool samples from the affected sheep were significantly lower than those in the healthy sheep (P<0.01). Hb, PCV and MCH of the affected sheep were significantly lower than those in the healthy sheep (P<0.01). Serum GSH-PX, CAT and T-AOC of the affected sheep were significantly lower than those in the healthy sheep (P<0.01). Serum MDA, T-NOS, NO and LPO of the affected sheep were significantly higher than those in the healthy sheep (P < 0.01). Serum AKP, CPK, LDH, ALT, AST and A/G value of the affected sheep were significantly higher than those in the healthy sheep (P<0.01). Serum total protein, albumin, α-Globulin, β-Globulin and γ-Globulin concentrations of the affected sheep were significantly lower than those in the healthy sheep (P<0.01). The study clearly demonstrated that grazing a seleniumdeficient meadow significantly reduces the selenium content of tissue and antioxidant capacity, which seriously caused oxidative damage of the Wumeng semi-fine wool sheep.

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How Exogenous Selenium Affects Anthocyanin Accumulation and Biosynthesis-Related Gene Expression in Purple Lettuce

Cited by 26 publications

References 17 publications

Selenite-induced nitro-oxidative stress processes in Arabidopsis thaliana and Brassica juncea

Selenite-induced nitro-oxidative stress processes in Arabidopsis thaliana and Brassica juncea

Influence of selenite and selenate on growth, leaf physiology and antioxidant defense system in wheat (Triticum aestivum L.)

Effects of Selenium Deficiency in the Environment on Antioxidant Systems of Wumen Semi-Fine Wool Sheep

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