Effects of silicon on the transport, subcellular distribution, and chemical forms of lead in Salix viminalis L.
Lead (Pb) is a harmful heavy metal that threatens ecosystems and plant growth. Silicon (Si) plays a crucial role in plant responses to heavy metal stress. In this study, the effects of Si on Pb2+ content and transport, subcellular distribution, and chemical forms in Salix viminalis L. under Pb stres...
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Czech Academy of Agricultural Sciences
2025-04-01
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| Series: | Plant, Soil and Environment |
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| Online Access: | https://pse.agriculturejournals.cz/artkey/pse-202504-0001_effects-of-silicon-on-the-transport-subcellular-distribution-and-chemical-forms-of-lead-in-salix-viminalis-l.php |
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| author | Feifei Zhai Menglong Yin Jinmei Mao Junxiang Liu Haidong Li Yunxing Zhang Shaowei Zhang Zhenyuan Sun |
| author_facet | Feifei Zhai Menglong Yin Jinmei Mao Junxiang Liu Haidong Li Yunxing Zhang Shaowei Zhang Zhenyuan Sun |
| author_sort | Feifei Zhai |
| collection | DOAJ |
| description | Lead (Pb) is a harmful heavy metal that threatens ecosystems and plant growth. Silicon (Si) plays a crucial role in plant responses to heavy metal stress. In this study, the effects of Si on Pb2+ content and transport, subcellular distribution, and chemical forms in Salix viminalis L. under Pb stress were analysed, aiming to elucidate the detoxification mechanism of Si in S. viminalis under such conditions. Results showed that Si reduced Pb2+ in aboveground parts and increased it in roots, lowering its movement to leaves and stems. Analysis of the subcellular distribution of Pb2+ revealed that Si application promoted the transfer of Pb2+ to vacuole-dominated soluble components (F4) and cell wall components (F1), which increased the binding capacity of the cell wall and the vacuolar storage compartmentalisation for Pb2+. Changes in the chemical forms of Pb2+ indicated that Si significantly decreased the proportion of more mobile, ethanol-extractable Pb2+ (FE) and deionised water-extractable Pb2+ (FW) while increasing the proportion of less mobile Pb2+ forms, such as NaCl-extractable (FNaCl), HCl-extractable (FHCl), and acetic acid-extractable (FHAc) Pb2+, thereby reducing its mobility. This study provides empirical support for the application of Si in the phytoremediation of heavy metal-contaminated soils. |
| format | Article |
| id | doaj-art-e30e1c97bad243be8b0f53f04e42fae5 |
| institution | DOAJ |
| issn | 1214-1178 1805-9368 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Plant, Soil and Environment |
| spelling | doaj-art-e30e1c97bad243be8b0f53f04e42fae52025-08-20T03:11:09ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682025-04-0171424925810.17221/8/2025-PSEpse-202504-0001Effects of silicon on the transport, subcellular distribution, and chemical forms of lead in Salix viminalis L.Feifei Zhai0Menglong Yin1Jinmei Mao2Junxiang Liu3Haidong Li4Yunxing Zhang5Shaowei Zhang6Zhenyuan Sun7School of Architectural and Artistic Design, Henan Polytechnic University, Jiaozuo, P.R. ChinaSchool of Architectural and Artistic Design, Henan Polytechnic University, Jiaozuo, P.R. ChinaResearch Institute of Economic Forest, Xinjiang Academy of Forestry, Urumqi, P.R. ChinaState Key Laboratory of Tree Genetics and Breeding; Research Institute of Forestry, Chinese Academy of Forestry; Key Laboratory of Tree Breeding and Cultivation State Forestry Administration, Beijing, P.R. ChinaSchool of Architectural and Artistic Design, Henan Polytechnic University, Jiaozuo, P.R. ChinaSchool of Architectural and Artistic Design, Henan Polytechnic University, Jiaozuo, P.R. ChinaCollege of Agriculture and Medicine, Henan Open University, Zhengzhou, P.R. ChinaState Key Laboratory of Tree Genetics and Breeding; Research Institute of Forestry, Chinese Academy of Forestry; Key Laboratory of Tree Breeding and Cultivation State Forestry Administration, Beijing, P.R. ChinaLead (Pb) is a harmful heavy metal that threatens ecosystems and plant growth. Silicon (Si) plays a crucial role in plant responses to heavy metal stress. In this study, the effects of Si on Pb2+ content and transport, subcellular distribution, and chemical forms in Salix viminalis L. under Pb stress were analysed, aiming to elucidate the detoxification mechanism of Si in S. viminalis under such conditions. Results showed that Si reduced Pb2+ in aboveground parts and increased it in roots, lowering its movement to leaves and stems. Analysis of the subcellular distribution of Pb2+ revealed that Si application promoted the transfer of Pb2+ to vacuole-dominated soluble components (F4) and cell wall components (F1), which increased the binding capacity of the cell wall and the vacuolar storage compartmentalisation for Pb2+. Changes in the chemical forms of Pb2+ indicated that Si significantly decreased the proportion of more mobile, ethanol-extractable Pb2+ (FE) and deionised water-extractable Pb2+ (FW) while increasing the proportion of less mobile Pb2+ forms, such as NaCl-extractable (FNaCl), HCl-extractable (FHCl), and acetic acid-extractable (FHAc) Pb2+, thereby reducing its mobility. This study provides empirical support for the application of Si in the phytoremediation of heavy metal-contaminated soils.https://pse.agriculturejournals.cz/artkey/pse-202504-0001_effects-of-silicon-on-the-transport-subcellular-distribution-and-chemical-forms-of-lead-in-salix-viminalis-l.phpheavy metaltoxic elementtoxicityaccumulationdetoxification |
| spellingShingle | Feifei Zhai Menglong Yin Jinmei Mao Junxiang Liu Haidong Li Yunxing Zhang Shaowei Zhang Zhenyuan Sun Effects of silicon on the transport, subcellular distribution, and chemical forms of lead in Salix viminalis L. Plant, Soil and Environment heavy metal toxic element toxicity accumulation detoxification |
| title | Effects of silicon on the transport, subcellular distribution, and chemical forms of lead in Salix viminalis L. |
| title_full | Effects of silicon on the transport, subcellular distribution, and chemical forms of lead in Salix viminalis L. |
| title_fullStr | Effects of silicon on the transport, subcellular distribution, and chemical forms of lead in Salix viminalis L. |
| title_full_unstemmed | Effects of silicon on the transport, subcellular distribution, and chemical forms of lead in Salix viminalis L. |
| title_short | Effects of silicon on the transport, subcellular distribution, and chemical forms of lead in Salix viminalis L. |
| title_sort | effects of silicon on the transport subcellular distribution and chemical forms of lead in salix viminalis l |
| topic | heavy metal toxic element toxicity accumulation detoxification |
| url | https://pse.agriculturejournals.cz/artkey/pse-202504-0001_effects-of-silicon-on-the-transport-subcellular-distribution-and-chemical-forms-of-lead-in-salix-viminalis-l.php |
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