Exogenous application of silica nanoparticles mitigates combined salt and low-temperature stress in cotton seedlings by improving the K+/Na+ ratio and antioxidant defense
Silica nanoparticles (SiO2-NPs) have been demonstrated to alleviate the adverse impacts of salt or low temperature on crop growth, especially for individual stress. The aim of this study was to elucidate the regulatory effect of SiO2-NPs on plant performance under combined salt and low-temperature s...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-12-01
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| Series: | Plant Stress |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667064X24002501 |
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| author | Yueping Liang Hao Liu Yingying Zhang Penghui Li Yuanyuan Fu Shuang Li Yang Gao |
| author_facet | Yueping Liang Hao Liu Yingying Zhang Penghui Li Yuanyuan Fu Shuang Li Yang Gao |
| author_sort | Yueping Liang |
| collection | DOAJ |
| description | Silica nanoparticles (SiO2-NPs) have been demonstrated to alleviate the adverse impacts of salt or low temperature on crop growth, especially for individual stress. The aim of this study was to elucidate the regulatory effect of SiO2-NPs on plant performance under combined salt and low-temperature stress. Therefore, a phytotron experiment was performed to explore the effects of SiO2-NPs application (0, 50, 100, 200 mg L−1) on the plant growth, ionic content, antioxidant activities, photosynthetic parameters, and osmoregulator concentrations of cotton seedlings subjected to the combined stress of salinity (50, 100, and 150 mmol L−1 NaCl) and low temperature (day and night temperatures of 15 and 10 °C). The results indicated that the combinatorial stress strongly decreased the plant height and leaf area of cotton seedlings, and obviously suppressed the aboveground biomass by 10.26 %, 11.42 %, and 15.70 % with the increase in salinity. While SiO2-NPs application significantly increased the plant growth, photosynthetic rate, transpiration rate, stomatal conductance, superoxide dismutase, catalase and glutathione reductase activities, leaf water potential, K+, and proline contents, and reduced the Na+ content and Na+/K+ ratio of cotton seedlings under the combinatorial stress. However, the effects of SiO2-NPs on reduced glutathione, total soluble sugar and protein content, and peroxidase activity did not exhibit a clear pattern. The aboveground biomass of cotton seedlings subjected to the combinatorial stress was closely correlated with the Na+/K+ ratio, Na+ content, K+ content, proline content, SOD activity, and CAT activity, indicating that SiO2-NPs could alleviate the suppression of combinatorial stress on cotton seedling growth by decreasing the Na+/K+ ratio and increasing the antioxidant capacity. |
| format | Article |
| id | doaj-art-961799278fda4af9b69218aa44e3cf13 |
| institution | OA Journals |
| issn | 2667-064X |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Plant Stress |
| spelling | doaj-art-961799278fda4af9b69218aa44e3cf132025-08-20T02:34:35ZengElsevierPlant Stress2667-064X2024-12-011410059710.1016/j.stress.2024.100597Exogenous application of silica nanoparticles mitigates combined salt and low-temperature stress in cotton seedlings by improving the K+/Na+ ratio and antioxidant defenseYueping Liang0Hao Liu1Yingying Zhang2Penghui Li3Yuanyuan Fu4Shuang Li5Yang Gao6Institute of Farmland Irrigation, the Chinese Academy of Agricultural Sciences, Xinxiang 453002, PR China; Institute of Western Agriculture, the Chinese Academy of Agricultural Sciences, Changji 831100, PR ChinaInstitute of Farmland Irrigation, the Chinese Academy of Agricultural Sciences, Xinxiang 453002, PR China; Institute of Western Agriculture, the Chinese Academy of Agricultural Sciences, Changji 831100, PR ChinaInstitute of Farmland Irrigation, the Chinese Academy of Agricultural Sciences, Xinxiang 453002, PR ChinaInstitute of Farmland Irrigation, the Chinese Academy of Agricultural Sciences, Xinxiang 453002, PR ChinaInstitute of Farmland Irrigation, the Chinese Academy of Agricultural Sciences, Xinxiang 453002, PR ChinaShandong Academy of Agricultural Machinery Sciences, Shandong Academy of Agricultural Sciences, Jinan 250100, PR ChinaInstitute of Farmland Irrigation, the Chinese Academy of Agricultural Sciences, Xinxiang 453002, PR China; Institute of Western Agriculture, the Chinese Academy of Agricultural Sciences, Changji 831100, PR China; Corresponding author at: Institute of Farmland Irrigation, the Chinese Academy of Agricultural Sciences, Xinxiang 453002, PR China.Silica nanoparticles (SiO2-NPs) have been demonstrated to alleviate the adverse impacts of salt or low temperature on crop growth, especially for individual stress. The aim of this study was to elucidate the regulatory effect of SiO2-NPs on plant performance under combined salt and low-temperature stress. Therefore, a phytotron experiment was performed to explore the effects of SiO2-NPs application (0, 50, 100, 200 mg L−1) on the plant growth, ionic content, antioxidant activities, photosynthetic parameters, and osmoregulator concentrations of cotton seedlings subjected to the combined stress of salinity (50, 100, and 150 mmol L−1 NaCl) and low temperature (day and night temperatures of 15 and 10 °C). The results indicated that the combinatorial stress strongly decreased the plant height and leaf area of cotton seedlings, and obviously suppressed the aboveground biomass by 10.26 %, 11.42 %, and 15.70 % with the increase in salinity. While SiO2-NPs application significantly increased the plant growth, photosynthetic rate, transpiration rate, stomatal conductance, superoxide dismutase, catalase and glutathione reductase activities, leaf water potential, K+, and proline contents, and reduced the Na+ content and Na+/K+ ratio of cotton seedlings under the combinatorial stress. However, the effects of SiO2-NPs on reduced glutathione, total soluble sugar and protein content, and peroxidase activity did not exhibit a clear pattern. The aboveground biomass of cotton seedlings subjected to the combinatorial stress was closely correlated with the Na+/K+ ratio, Na+ content, K+ content, proline content, SOD activity, and CAT activity, indicating that SiO2-NPs could alleviate the suppression of combinatorial stress on cotton seedling growth by decreasing the Na+/K+ ratio and increasing the antioxidant capacity.http://www.sciencedirect.com/science/article/pii/S2667064X24002501Combined salt and low-temperature stressPhysiological characteristicRegulatory mechanismSeedling growthSilicon nanoparticles |
| spellingShingle | Yueping Liang Hao Liu Yingying Zhang Penghui Li Yuanyuan Fu Shuang Li Yang Gao Exogenous application of silica nanoparticles mitigates combined salt and low-temperature stress in cotton seedlings by improving the K+/Na+ ratio and antioxidant defense Plant Stress Combined salt and low-temperature stress Physiological characteristic Regulatory mechanism Seedling growth Silicon nanoparticles |
| title | Exogenous application of silica nanoparticles mitigates combined salt and low-temperature stress in cotton seedlings by improving the K+/Na+ ratio and antioxidant defense |
| title_full | Exogenous application of silica nanoparticles mitigates combined salt and low-temperature stress in cotton seedlings by improving the K+/Na+ ratio and antioxidant defense |
| title_fullStr | Exogenous application of silica nanoparticles mitigates combined salt and low-temperature stress in cotton seedlings by improving the K+/Na+ ratio and antioxidant defense |
| title_full_unstemmed | Exogenous application of silica nanoparticles mitigates combined salt and low-temperature stress in cotton seedlings by improving the K+/Na+ ratio and antioxidant defense |
| title_short | Exogenous application of silica nanoparticles mitigates combined salt and low-temperature stress in cotton seedlings by improving the K+/Na+ ratio and antioxidant defense |
| title_sort | exogenous application of silica nanoparticles mitigates combined salt and low temperature stress in cotton seedlings by improving the k na ratio and antioxidant defense |
| topic | Combined salt and low-temperature stress Physiological characteristic Regulatory mechanism Seedling growth Silicon nanoparticles |
| url | http://www.sciencedirect.com/science/article/pii/S2667064X24002501 |
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