Selenium as a powerful trace element for mitigation of plant salt stress: A review

Nedjimi, Bouzid

doi:10.1016/j.jtemin.2024.100123

Cited by 2 publications

(6 citation statements)

References 101 publications

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“…In a previous research report, SOD activity was increased by adding 0.5 mg/kg of Se to rice [ 61 ]. The control of SOD activity in response to Se is influenced by three main factors in plants, as previously reported [ 45 , 57 ]. The first factor is the stress level [ 45 , 57 ].…”

Section: Discussionmentioning

confidence: 57%

“…The control of SOD activity in response to Se is influenced by three main factors in plants, as previously reported [ 45 , 57 ]. The first factor is the stress level [ 45 , 57 ]. Under low stress conditions, the antioxidant capacity of plants is sufficient, whereas under high stress conditions, it may be necessary to increase SOD activity, which can be accomplished by adding Se [ 45 , 57 ].…”

Section: Discussionmentioning

confidence: 57%

“…In addition to its significant effect on human health, Se also has a crucial role in the antioxidant protection of plants [ 56 ]. Se has the ability to stimulate growth, resist pathogens, and confer tolerance to oxidative stress [ 57 ]. When plants suffer from stress conditions, they create excess ROS, which can result in damage to cell components, the destruction of cell membranes, and the inhibition of plant growth [ 58 ].…”

Section: Discussionmentioning

confidence: 99%

“…The first factor is the stress level [ 45 , 57 ]. Under low stress conditions, the antioxidant capacity of plants is sufficient, whereas under high stress conditions, it may be necessary to increase SOD activity, which can be accomplished by adding Se [ 45 , 57 ]. The second element affecting the activity of SOD is the concentration of Se [ 45 , 57 ].…”

Section: Discussionmentioning

confidence: 99%

“…Under low stress conditions, the antioxidant capacity of plants is sufficient, whereas under high stress conditions, it may be necessary to increase SOD activity, which can be accomplished by adding Se [ 45 , 57 ]. The second element affecting the activity of SOD is the concentration of Se [ 45 , 57 ]. The third factor is connected with the concentration of SOD helper factors, such as Zn, Cu, Mn, and Fe [ 45 , 57 ].…”

Section: Discussionmentioning

confidence: 99%

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High Concentrations of Se Inhibited the Growth of Rice Seedlings

Liu,

Ma,

et al. 2024

Plants

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Selenium (Se) is crucial for both plants and humans, with plants acting as the main source for human Se intake. In plants, moderate Se enhances growth and increases stress resistance, whereas excessive Se leads to toxicity. The physiological mechanisms by which Se influences rice seedlings’ growth are poorly understood and require additional research. In order to study the effects of selenium stress on rice seedlings, plant phenotype analysis, root scanning, metal ion content determination, physiological response index determination, hormone level determination, quantitative PCR (qPCR), and other methods were used. Our findings indicated that sodium selenite had dual effects on rice seedling growth under hydroponic conditions. At low concentrations, Se treatment promotes rice seedling growth by enhancing biomass, root length, and antioxidant capacity. Conversely, high concentrations of sodium selenite impair and damage rice, as evidenced by leaf yellowing, reduced chlorophyll content, decreased biomass, and stunted growth. Elevated Se levels also significantly affect antioxidase activities and the levels of proline, malondialdehyde, metal ions, and various phytohormones and selenium metabolism, ion transport, and antioxidant genes in rice. The adverse effects of high Se concentrations may directly disrupt protein synthesis or indirectly induce oxidative stress by altering the absorption and synthesis of other compounds. This study aims to elucidate the physiological responses of rice to Se toxicity stress and lay the groundwork for the development of Se-enriched rice varieties.

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Section: Discussionmentioning

confidence: 57%

Section: Discussionmentioning

confidence: 57%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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High Concentrations of Se Inhibited the Growth of Rice Seedlings

Liu,

Ma,

et al. 2024

Plants

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Effect of Growth Regulators and Nano Materials to Cope with Salinity on Anatomical Characteristics of Pea Plant

El-Araby,

El-Hefnawy,

Nassar

et al. 2024

JSPAE

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Abiotic stresses, particularly salinity, severely hinder crop productivity by disrupting physiological processes and reducing yields. Pea (Pisum sativum L.), a vital crop, is highly sensitive to salinity, making it crucial to explore strategies that enhance its tolerance to such stresses. This study investigates the effects of Ascorbic Acid (AsA), 5-Aminolevulinic Acid (ALA), and Nano-Selenium (N-Se) on the anatomical characteristics of pea plants subjected to severe salinity stress (120 mM NaCl). Transverse sections of the fourth internode and leaf blade were analyzed, focusing on stem and leaf structure. The results showed that foliar application of AsA (100 ppm) significantly improved anatomical traits, such as stem diameter, cortex thickness, and vascular bundle dimensions, compared to the control and other treatments. ALA (50 ppm) also improved anatomical features, albeit to a lesser extent, while N-Se (20 ppm) exhibited the lowest enhancement. Leaf tissue analysis revealed that AsA improved leaflet structure, increasing epidermis thickness and vascular bundle dimensions under salinity stress. The application of AsA, ALA, and N-Se mitigated the negative effects of salinity, likely due to their roles in enhancing stress tolerance, reducing oxidative damage, and improving nutrient uptake. This study highlights the potential of these bio-stimulants to improve the anatomical resilience of pea plants under salinity stress, contributing to better crop performance in saline environments.

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Selenium as a powerful trace element for mitigation of plant salt stress: A review

Cited by 2 publications

References 101 publications

High Concentrations of Se Inhibited the Growth of Rice Seedlings

High Concentrations of Se Inhibited the Growth of Rice Seedlings

Effect of Growth Regulators and Nano Materials to Cope with Salinity on Anatomical Characteristics of Pea Plant

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