Exogenous jasmonic acid and salicylic acid enhance selenium uptake and mitigate cadmium accumulation in pak choi (Brassica chinensis L.) grown in selenium-rich, high-cadmium soil
Plant hormones are known to regulate the uptake and distribution of mineral elements, including heavy metals, in crops. This study evaluated the effects of exogenous jasmonic acid (JA) and salicylic acid (SA), applied individually or in combination, on selenium (Se) enrichment and cadmium (Cd) mitig...
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Frontiers Media S.A.
2025-08-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2025.1619522/full |
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| author | Jin-Ping Chen Jin-Ping Chen Jie Qin Ying Xing Ying Xing Qing Liao Qing Liao Li-Ping Pan Li-Ping Pan Cheng-Cheng Zeng Cheng-Cheng Zeng Yong-Xian Liu Yong-Xian Liu |
| author_facet | Jin-Ping Chen Jin-Ping Chen Jie Qin Ying Xing Ying Xing Qing Liao Qing Liao Li-Ping Pan Li-Ping Pan Cheng-Cheng Zeng Cheng-Cheng Zeng Yong-Xian Liu Yong-Xian Liu |
| author_sort | Jin-Ping Chen |
| collection | DOAJ |
| description | Plant hormones are known to regulate the uptake and distribution of mineral elements, including heavy metals, in crops. This study evaluated the effects of exogenous jasmonic acid (JA) and salicylic acid (SA), applied individually or in combination, on selenium (Se) enrichment and cadmium (Cd) mitigation in pak choi (Brassica chinensis L.) cultivated in Se-rich and high-Cd soils. Hormone treatments significantly increased shoot Se content by 33.7%-62.3% compared to the control, with the highest level Se accumulation observed under combined application of 50 μmol·L-1 JA and 50 μmol·L-1 SA. Cd accumulation in shoots decreased by 11.7%-29.3% in JA-containing treatments, with the same combined producing the lowest shoot Cd levels. JA alone increased root Cd content, while SA treatments reduced it. Individual hormone treatments elevated root levels of phytochelatins (PCs), glutathione (GSH), and metallo-thioneins (MTs), while the combined treatment future increased PCs and GSH, but decreased MTs and non-protein thiols (NPTs). Antioxidant enzyme activities (SOD, CAT, POD), chlorophyll content and shoot fresh weight also increased in JA-containing treatments. Taken together, foliar application of JA combined SA offers a promising strategy to enhance Se biofortification, reduce Cd accumulation, and promote biomass production in pak choi grown in Se-rich and high-Cd soils. |
| format | Article |
| id | doaj-art-e0800a64e27145d8ae5882b90b543d36 |
| institution | Kabale University |
| issn | 1664-462X |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Plant Science |
| spelling | doaj-art-e0800a64e27145d8ae5882b90b543d362025-08-20T04:03:18ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2025-08-011610.3389/fpls.2025.16195221619522Exogenous jasmonic acid and salicylic acid enhance selenium uptake and mitigate cadmium accumulation in pak choi (Brassica chinensis L.) grown in selenium-rich, high-cadmium soilJin-Ping Chen0Jin-Ping Chen1Jie Qin2Ying Xing3Ying Xing4Qing Liao5Qing Liao6Li-Ping Pan7Li-Ping Pan8Cheng-Cheng Zeng9Cheng-Cheng Zeng10Yong-Xian Liu11Yong-Xian Liu12Agricultural Resources and Environment Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, ChinaGuangxi Key Laboratory of Arable Land Conservation, Guangxi Academy of Agricultural Sciences, Nanning, ChinaFlower Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, ChinaAgricultural Resources and Environment Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, ChinaGuangxi Key Laboratory of Arable Land Conservation, Guangxi Academy of Agricultural Sciences, Nanning, ChinaAgricultural Resources and Environment Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, ChinaGuangxi Key Laboratory of Arable Land Conservation, Guangxi Academy of Agricultural Sciences, Nanning, ChinaAgricultural Resources and Environment Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, ChinaGuangxi Key Laboratory of Arable Land Conservation, Guangxi Academy of Agricultural Sciences, Nanning, ChinaAgricultural Resources and Environment Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, ChinaGuangxi Key Laboratory of Arable Land Conservation, Guangxi Academy of Agricultural Sciences, Nanning, ChinaAgricultural Resources and Environment Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, ChinaGuangxi Key Laboratory of Arable Land Conservation, Guangxi Academy of Agricultural Sciences, Nanning, ChinaPlant hormones are known to regulate the uptake and distribution of mineral elements, including heavy metals, in crops. This study evaluated the effects of exogenous jasmonic acid (JA) and salicylic acid (SA), applied individually or in combination, on selenium (Se) enrichment and cadmium (Cd) mitigation in pak choi (Brassica chinensis L.) cultivated in Se-rich and high-Cd soils. Hormone treatments significantly increased shoot Se content by 33.7%-62.3% compared to the control, with the highest level Se accumulation observed under combined application of 50 μmol·L-1 JA and 50 μmol·L-1 SA. Cd accumulation in shoots decreased by 11.7%-29.3% in JA-containing treatments, with the same combined producing the lowest shoot Cd levels. JA alone increased root Cd content, while SA treatments reduced it. Individual hormone treatments elevated root levels of phytochelatins (PCs), glutathione (GSH), and metallo-thioneins (MTs), while the combined treatment future increased PCs and GSH, but decreased MTs and non-protein thiols (NPTs). Antioxidant enzyme activities (SOD, CAT, POD), chlorophyll content and shoot fresh weight also increased in JA-containing treatments. Taken together, foliar application of JA combined SA offers a promising strategy to enhance Se biofortification, reduce Cd accumulation, and promote biomass production in pak choi grown in Se-rich and high-Cd soils.https://www.frontiersin.org/articles/10.3389/fpls.2025.1619522/fullselenium biofortificationcadmium mitigationhigh-cadmium soilmetal chelation compoundsantioxidant enzyme |
| spellingShingle | Jin-Ping Chen Jin-Ping Chen Jie Qin Ying Xing Ying Xing Qing Liao Qing Liao Li-Ping Pan Li-Ping Pan Cheng-Cheng Zeng Cheng-Cheng Zeng Yong-Xian Liu Yong-Xian Liu Exogenous jasmonic acid and salicylic acid enhance selenium uptake and mitigate cadmium accumulation in pak choi (Brassica chinensis L.) grown in selenium-rich, high-cadmium soil Frontiers in Plant Science selenium biofortification cadmium mitigation high-cadmium soil metal chelation compounds antioxidant enzyme |
| title | Exogenous jasmonic acid and salicylic acid enhance selenium uptake and mitigate cadmium accumulation in pak choi (Brassica chinensis L.) grown in selenium-rich, high-cadmium soil |
| title_full | Exogenous jasmonic acid and salicylic acid enhance selenium uptake and mitigate cadmium accumulation in pak choi (Brassica chinensis L.) grown in selenium-rich, high-cadmium soil |
| title_fullStr | Exogenous jasmonic acid and salicylic acid enhance selenium uptake and mitigate cadmium accumulation in pak choi (Brassica chinensis L.) grown in selenium-rich, high-cadmium soil |
| title_full_unstemmed | Exogenous jasmonic acid and salicylic acid enhance selenium uptake and mitigate cadmium accumulation in pak choi (Brassica chinensis L.) grown in selenium-rich, high-cadmium soil |
| title_short | Exogenous jasmonic acid and salicylic acid enhance selenium uptake and mitigate cadmium accumulation in pak choi (Brassica chinensis L.) grown in selenium-rich, high-cadmium soil |
| title_sort | exogenous jasmonic acid and salicylic acid enhance selenium uptake and mitigate cadmium accumulation in pak choi brassica chinensis l grown in selenium rich high cadmium soil |
| topic | selenium biofortification cadmium mitigation high-cadmium soil metal chelation compounds antioxidant enzyme |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2025.1619522/full |
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