Role of Selenium in Plants Against Abiotic Stresses: Phenological and Molecular Aspects

Banerjee, Aditya; Roychoudhury, Aryadeep

doi:10.1002/9781119463665.ch7

Cited by 13 publications

(3 citation statements)

References 45 publications

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“…Se is a nonmetallic micronutrient that is beneficial to plants at very low concentrations. However, the optimum concentration varies with the plant species [14]. The effect low dosess of Se in plant growth such as antioxidants, stress relievers and inhibitors of the uptake of metals including Cd [15], Cr [16], Pb [17], As [18], Hg [19] etc.…”

Section: Cadmiummentioning

confidence: 99%

Selenium Alleviates the Toxic Effects of Cadmium in Lupine (<i>Lupinus albus</i> L.)

Akonaç¹,

Canal²

2022

Pol. J. Environ. Stud.

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This study aimed at investigating the effects of selenium (Se) against cadmium (Cd) toxicity on the plant growth, antioxidative enzyme activity, and Cd and Se content in lupine (Lupinus albus L.) plant and soil. The experiment was carried out under controlled conditions according to the factorial experiment design. Two doses of Cd (Cd 1 :25 mg kg -1 and Cd 2 :50 mg kg -1 ) were applied in the soil. Three doses of Se (Se 1 :2,5 mg kg -1 Se 2 : 5 mg kg -1 , and Se 3 :10 mg kg -1 ) were applied to the Cd-treated pots. Two-way analysis of variance was conducted to explore the interactions between Cd and Se doses. The results showed that Cd 1 and Cd 2 applications alone caused a decrease in plant growth as well as increased oxidative stress due to shoot and root Cd content in plants and soil. Se 1 and Se 2 applications to Cd-treated pots caused an increase in shoot and root length, fresh and dry shoot weights, fresh and dry root weights. However, Se 3 (10 mg kg -1 ) application decreased shoot and root length, fresh and dry shoot weights, fresh and dry root weights. More importantly, application of Se (2,5 mg Se kg -1 and 5 mg Se kg -1 ) is effective in improving the toxicity of cadmium increasing plant growth and diminishing shoot and root Cd, MDA content and DTPA-Cd content in lupine plant. We concluded that low and medium levels of Se alleviated the toxic effects of Cd in lupine. But high level of Se exerted negative influence on plant growth and oxidative stress under Cd toxicity. Moreover the effectiveness of selenium in reducing cadmium toxicity depends on the dose as well as the form of application.

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Section: Cadmiummentioning

confidence: 99%

Selenium Alleviates the Toxic Effects of Cadmium in Lupine (<i>Lupinus albus</i> L.)

Akonaç¹,

Canal²

2022

Pol. J. Environ. Stud.

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“…High concentrations of Se, acting as a potent pro-oxidant, promote plant physiological deterioration. The degree of damage is species-specific and concentration-dependent [ 35 ]. However, at trace concentrations, Se acts as an antioxidant in several plants.…”

Section: Introductionmentioning

confidence: 99%

“…However, at trace concentrations, Se acts as an antioxidant in several plants. It replenishes metabolic pools, triggers antioxidant mechanisms, enhances the accumulation of nonenzymatic antioxidants, and boosts the activity of antioxidant enzymes [ 35 ].…”

Section: Introductionmentioning

confidence: 99%

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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Rice Grain Quality and Abiotic Stress: Genomics and Biotechnological Perspectives

Banerjee

Roychoudhury

2020

Rice Research for Quality Improvement: Genomics and Genetic Engineering

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Role of Selenium in Plants Against Abiotic Stresses: Phenological and Molecular Aspects

Cited by 13 publications

References 45 publications

Selenium Alleviates the Toxic Effects of Cadmium in Lupine (<i>Lupinus albus</i> L.)

Selenium Alleviates the Toxic Effects of Cadmium in Lupine (<i>Lupinus albus</i> L.)

High Concentrations of Se Inhibited the Growth of Rice Seedlings

Rice Grain Quality and Abiotic Stress: Genomics and Biotechnological Perspectives

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