Selenium alleviates arsenic induced stress by modulating growth, oxidative stress, antioxidant defense and thiol metabolism in rice seedlings

Das, Susmita; Majumder, Barsha

doi:10.1080/15226514.2021.1975639

Cited by 17 publications

(8 citation statements)

References 77 publications

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“…Under mild drought, high temperature, and other adverse conditions, ROS at appropriate concentrations act as signal molecules and induce a series of physiological changes and adjustments in metabolism ( Miller et al, 2010 ). However, when the plants are exposed to severe adversity for a long period, the scavenging system fails to eliminate the additional ROS generated and results in oxidative damage ( Pallavi et al, 2012 ; Das, Majumder & Biswas, 2021 ). Drought is the main abiotic stress of plants, which leads to oxidative stress by producing different forms of ROS.…”

Section: Discussionmentioning

confidence: 99%

Ecological roles of secondary metabolites of Saposhnikovia divaricata in adaptation to drought stress

Cao

Shi

Shen

et al. 2022

PeerJ

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Saposhnikovia divaricata is a traditional Chinese herb that mainly grows in arid grasslands and strongly adapts to various stresses. Drought is not only a major abiotic stress factor but also a typical feature conducive to producing high-quality medicinal material. The present study investigated by treating S. divaricata plants with polyethylene glycol (PEG-6000). Ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF-MS) identified 146 compounds from the roots of S. divaricata, among which seven primary metabolites and 28 secondary metabolites showed significant changes after drought treatment. UV-Vis spectrophotometer detected the activity of antioxidant enzymes and the content of superoxide anion (O2−.) and malondialdehyde (MDA). The differential primary metabolites revealed that drought promotes glycolysis, reducing primary metabolism and enhancing secondary metabolism. Meanwhile, the differential secondary metabolites showed an increase in the content of compounds upstream of the secondary metabolic pathway, and other glycosides and increased that of the corresponding aglycones. The activities of antioxidant enzymes and the content of O2−. and MDA shown different changes duing the drought treatment. These observations indicate that drought promotes the biosynthesis and transformation of the secondary metabolites and activity of antioxidant enzymes, improving plant adaptability. The present study also analyzed a few primary and secondary metabolites of S. divaricata under different degrees and durations of drought and speculated on the metabolic pathways in an arid environment. The findings indicate the biological nature, diversity, and complexity of secondary metabolites and the mechanisms of plant adaptation to ecological stress.

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Section: Discussionmentioning

confidence: 99%

Ecological roles of secondary metabolites of Saposhnikovia divaricata in adaptation to drought stress

Cao

Shi

Shen

et al. 2022

PeerJ

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“…5,7,8). The 1.0 mmol/L SNP-treated group, the highest level of MDA had been hit on the 2 nd day, failed to produce high levels of ROS, maybe it is due to the damaging effect of high levels of NO (32) or/and reduced the enzymes related to ROS production or/and produced a high amount of ROS (29), which resulted in the secondary metabolites failing to be elevated. 1,3-DPG is a product of glucose catabolism, ACC and PAL located between the primary metabolism and the secondary metabolism, and CHS is a key of enzyme of plant flavonoid biosynthesis, a series of substances indicated that the increased chromones come from the biosynthesis, not biotransformation, which can ensure that the various active ingredients are greatly increased.…”

Section: Effect Of Snp On Secondary Metabolite and Relating Key Enzymesmentioning

confidence: 99%

Sodium Nitroprusside Improved the Quality of Radix Saposhnikoviae through Constructed Physiological State under Adversity

Song,

Yao,

Zhao

et al. 2023

Preprint

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The quality of botanicals is closely related to the growing environment, usually with a better quality under adverse conditions. The quality of the cultivated under good conditions were heavily declined. Radix Saposhnikoviae is one of the most commonly botanicals in Asian countries, the price of the cultivated is only 1/10 to 1/3 of that of the wild, therefore improved the quality of the cultivated Radix Saposhnikoviae is an urgent issue. The fresh Radix saposhnikoviae roots were treated with 0.03, 0.1, 0.5, and 1.0 mmol/L SNP, and the activities of antioxidant enzymes, secondary metabolite synthesis enzymes such as PAL, ACC and CHS, and the contents of NO, O2·ˉ, H2O2, MDA, and secondary metabolite chromones were determined. The quality of Radix Saposhnikoviae was evaluated with antipyretic, analgesic, and anti-inflammatory effects, and inflammatory factors. The NO contents in the fresh roots of Radix saposhnikoviae were significantly increased under SNP, which led to a significant increase of O2·ˉ, H2O2, and MDA. The activities of antioxidant enzymes SOD, CAT, and POD showed an increase, reach a peak on the 2nd and the 3rd day. The activities of PAL, ACC, and CHS were also significantly enhanced, resulting in the increased secondary metabolite contents of Radix Saposhnikoviae in all groups, especially the 0.5 mmol/ L SNP, the four active ingredients, prim-O-glucosylcimifugin, cimifugin, 4'-O-β-D-glucosyl-5-O-methylvisamminol, and sec-O-glucosylhamaudol, increased by 90.5%, 252.1%, 52.2% and 153.7%, respectively, on the 3rd day, which was accomplished by biosynthesis. The pharmaceutical effects of Radix saposhnikoviae under 0.5mmol/L SNP were significantly enhanced. Exogenous SNP can induce physiological states under the adverse conditions and significantly improve the quality of Radix Saposhnikoviae, which can provide a new way for high-quality production.

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“…Selenium can protect plants from oxidative stress by scavenging free radicals and reducing reactive oxygen species (ROS) in cells (Mansooret al 2022). Selenium can act as an effective antioxidant on plants by protecting cells, enhancing defense mechanisms, and increasing tolerance to stress (Das et al 2022). However, it is important to note that excessive selenium can be toxic to plants, so proper dosing and monitoring are essential for safe and effective use (Mahmoud et al…”

Section: )mentioning

confidence: 99%

Maximize faba bean productivity under salinity conditions

elsherpiny¹

2023

Egypt.J. Soil Sci.

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ALINE soils are difficult to manage. Still, with the use of suitable fertilization programs, the productivity of these soils may be improved considerably. Accordingly, a field trial was implemented to evaluate the effectiveness of alleviating the oxidative stresses on faba bean plants grown under soil salinity stress via gypsum, compost and selenium (Se).Four soil amendment treatments [T 0 : Control; T 1 : Gypsum; T 2 : Compost; T 3 : Gypsum +compost] andfive foliar Seapplication rates (0, 2.5, 5.0 7.5 and 10.0 mg L -1 ) were studied.All studied treatments significantly affected all studied parameters. The maximum contents of malondialdehyde (MDA) and proline were recorded underT 0 treatment, while the lowest values were realized under T 3 treatment.The maximum values were achieved with plants sprayed with 10.0 Se mg L -1 .While the lowest values were realized with plants sprayed with 5.0 Se mg L -1 .The T 3 treatment was the most effective for the growth performance traits and productivity. The Setreatments had a significant and gradual effect on the growth performance traits and productivity, with an increase observed as the Se rate was increased from 0.0 mgL -1 to 5.0 mgL -1 , followed by a significant and gradual decrease until the Se concentration reached 10.0 mgL -1 .Generally, by using suitable soil amendments and Se foliar application, the productivity of faba bean plants can be improved even under soil salinity stress. Overall, these findings provide a potential solution for improving faba bean production in challenging environments and could help pave the way for further research in this area.

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Selenium alleviates arsenic induced stress by modulating growth, oxidative stress, antioxidant defense and thiol metabolism in rice seedlings

Cited by 17 publications

References 77 publications

Ecological roles of secondary metabolites of Saposhnikovia divaricata in adaptation to drought stress

Ecological roles of secondary metabolites of Saposhnikovia divaricata in adaptation to drought stress

Sodium Nitroprusside Improved the Quality of Radix Saposhnikoviae through Constructed Physiological State under Adversity

Maximize faba bean productivity under salinity conditions

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