Exogenous selenium enhances cadmium stress tolerance by improving physiological characteristics of Artemisia argyi seedlings
Abstract The contamination of Chinese medicinal materials with cadmium (Cd) is a pressing global issue that poses significant risks to human health. The beneficial effects of selenium (Se) have been established in improving plant growth and reducing Cd accumulation in plant under Cd stress. This stu...
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Nature Portfolio
2025-01-01
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| Online Access: | https://doi.org/10.1038/s41598-025-87340-w |
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| author | Yaxin Yu Yingbin Yang Yu Guo Meiqi Pan Wenfang Hao |
| author_facet | Yaxin Yu Yingbin Yang Yu Guo Meiqi Pan Wenfang Hao |
| author_sort | Yaxin Yu |
| collection | DOAJ |
| description | Abstract The contamination of Chinese medicinal materials with cadmium (Cd) is a pressing global issue that poses significant risks to human health. The beneficial effects of selenium (Se) have been established in improving plant growth and reducing Cd accumulation in plant under Cd stress. This study employed soil cultivation experiments to investigate the remediation effects of exogenous Se (0, 0.5, 1, and 2 mg kg⁻1) under varying levels of Cd stress (0, 0.6 and 4 mg kg⁻1). The findings revealed that Cd stress markedly impaired seedling growth, biomass, and physiological characteristics in Artemisia argyi. Regardless of Cd levels, exogenous Se significantly enhanced seedling biomass, improved antioxidant enzyme activity, and increased the plant’s antioxidant capacity, thereby mitigating Cd stress. Additionally, exogenous Se promoted A. argyi plant growth, decreased malondialdehyde (MDA) content in the shoots, and under two Cd stress environments of 0.6 and 4 mg kg⁻1, the application of 1 mg kg⁻1 Se reduced the Cd content in the aboveground parts of seedlings by 31.99 and 82.21%, respectively. We conclude 1 mg kg⁻1 Se could represent a promising strategy to contribute to the development and sustainability of crop production on soils contaminated with Cd at a concentration of up to 0.6 and 4 mg kg⁻1. These results indicate that exogenous Se activates physiological and biochemical defense mechanisms in A. argyi seedlings against Cd stress, offering a foundation for cultivating high-yield, high-quality A. argyi in Cd-contaminated soils. |
| format | Article |
| id | doaj-art-521bfec189c340919a3c5d28bc8942bc |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
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| spelling | doaj-art-521bfec189c340919a3c5d28bc8942bc2025-02-02T12:17:19ZengNature PortfolioScientific Reports2045-23222025-01-0115111110.1038/s41598-025-87340-wExogenous selenium enhances cadmium stress tolerance by improving physiological characteristics of Artemisia argyi seedlingsYaxin Yu0Yingbin Yang1Yu Guo2Meiqi Pan3Wenfang Hao4College of Life Sciences, Northwest A&F UniversityCollege of Life Sciences, Northwest A&F UniversityCollege of Life Sciences, Northwest A&F UniversityCollege of Life Sciences, Northwest A&F UniversityCollege of Life Sciences, Northwest A&F UniversityAbstract The contamination of Chinese medicinal materials with cadmium (Cd) is a pressing global issue that poses significant risks to human health. The beneficial effects of selenium (Se) have been established in improving plant growth and reducing Cd accumulation in plant under Cd stress. This study employed soil cultivation experiments to investigate the remediation effects of exogenous Se (0, 0.5, 1, and 2 mg kg⁻1) under varying levels of Cd stress (0, 0.6 and 4 mg kg⁻1). The findings revealed that Cd stress markedly impaired seedling growth, biomass, and physiological characteristics in Artemisia argyi. Regardless of Cd levels, exogenous Se significantly enhanced seedling biomass, improved antioxidant enzyme activity, and increased the plant’s antioxidant capacity, thereby mitigating Cd stress. Additionally, exogenous Se promoted A. argyi plant growth, decreased malondialdehyde (MDA) content in the shoots, and under two Cd stress environments of 0.6 and 4 mg kg⁻1, the application of 1 mg kg⁻1 Se reduced the Cd content in the aboveground parts of seedlings by 31.99 and 82.21%, respectively. We conclude 1 mg kg⁻1 Se could represent a promising strategy to contribute to the development and sustainability of crop production on soils contaminated with Cd at a concentration of up to 0.6 and 4 mg kg⁻1. These results indicate that exogenous Se activates physiological and biochemical defense mechanisms in A. argyi seedlings against Cd stress, offering a foundation for cultivating high-yield, high-quality A. argyi in Cd-contaminated soils.https://doi.org/10.1038/s41598-025-87340-wArtemisia argyiHeavy metal contaminationSodium seleniteOxidative stressPhotosynthesis |
| spellingShingle | Yaxin Yu Yingbin Yang Yu Guo Meiqi Pan Wenfang Hao Exogenous selenium enhances cadmium stress tolerance by improving physiological characteristics of Artemisia argyi seedlings Scientific Reports Artemisia argyi Heavy metal contamination Sodium selenite Oxidative stress Photosynthesis |
| title | Exogenous selenium enhances cadmium stress tolerance by improving physiological characteristics of Artemisia argyi seedlings |
| title_full | Exogenous selenium enhances cadmium stress tolerance by improving physiological characteristics of Artemisia argyi seedlings |
| title_fullStr | Exogenous selenium enhances cadmium stress tolerance by improving physiological characteristics of Artemisia argyi seedlings |
| title_full_unstemmed | Exogenous selenium enhances cadmium stress tolerance by improving physiological characteristics of Artemisia argyi seedlings |
| title_short | Exogenous selenium enhances cadmium stress tolerance by improving physiological characteristics of Artemisia argyi seedlings |
| title_sort | exogenous selenium enhances cadmium stress tolerance by improving physiological characteristics of artemisia argyi seedlings |
| topic | Artemisia argyi Heavy metal contamination Sodium selenite Oxidative stress Photosynthesis |
| url | https://doi.org/10.1038/s41598-025-87340-w |
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