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Wu W, Qi D, Chen Y, Wang J, Zhang G, Wang Q, Niu H, Zhao Q, Peng T. Exogenous selenium mitigates cadmium uptake and accumulation in two rice (Oryza sativa L.) varieties in cadmium-contaminated soil. Sci Rep 2024; 14:21248. [PMID: 39261527 PMCID: PMC11390724 DOI: 10.1038/s41598-024-72113-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 09/03/2024] [Indexed: 09/13/2024] Open
Abstract
Rice grown in cadmium (Cd)-contaminated soil, is a potential threat to human health, but exogenous selenium (Se) application on rice can mitigate Cd toxicity. However, the mechanisms underlying Se mitigation of Cd stress in ratoon rice (RR) are still poorly understood. We conducted a pot experiment with moderate Cd-contaminated yellow-brown paddy soil on two rice varieties 'Taoyouxiangzhan' (TX) and 'Liangyou 6326'(LY). For all treatments, 1.0 mg kg-1 sodium selenite solution was added to soil. Treatment T1 was sodium selenite only, and in the other treatments 100 mg L-1 Se solution was sprayed on the leaves at seedling stage (T2), at tillering stage (T3), and in early anthesis stage (T4). Se treatments decreased Cd accumulation in rice grains and herbage. Under foliar spraying 100 mg L-1 Se at the seedling + 1.0 mg kg-1 Se in soil (T2), leaf Cd content decreased 16.95% in the current season and grains content decreased 46.67% in the subsequent season. Furthermore, grain Se content increased 0.94 mg kg-1 for the TX variety combined with the analysis of Cd bio-accumulation factor in grains, and Se treatments effectively decreased Cd grain concentrations due to reduced Cd translocation from roots to grains. TX variety rice showed a more pronounced response to Se treatments than LY.
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Affiliation(s)
- Wenjiang Wu
- Innovation Center of Henan Grain Crops, Henan Key Laboratory of Rice Biology, Henan Agricultural University, Zhengzhou, 450046, Henan, People's Republic of China
- College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, Henan, People's Republic of China
| | - Deqiang Qi
- Innovation Center of Henan Grain Crops, Henan Key Laboratory of Rice Biology, Henan Agricultural University, Zhengzhou, 450046, Henan, People's Republic of China
- College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, Henan, People's Republic of China
| | - Yalong Chen
- Innovation Center of Henan Grain Crops, Henan Key Laboratory of Rice Biology, Henan Agricultural University, Zhengzhou, 450046, Henan, People's Republic of China
- College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, Henan, People's Republic of China
| | - Jiaqi Wang
- Innovation Center of Henan Grain Crops, Henan Key Laboratory of Rice Biology, Henan Agricultural University, Zhengzhou, 450046, Henan, People's Republic of China
- College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, Henan, People's Republic of China
| | - Ganggang Zhang
- College of Horticulture, Henan Agricultural University, Zhengzhou, 450046, Henan, People's Republic of China
| | - Qinghua Wang
- Forestry and Fruit Research Institute of Beijing Academy of Agricultural Sciences, Beijing, 100089, People's Republic of China
| | - Hongbin Niu
- College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, Henan, People's Republic of China
| | - Quanzhi Zhao
- Innovation Center of Henan Grain Crops, Henan Key Laboratory of Rice Biology, Henan Agricultural University, Zhengzhou, 450046, Henan, People's Republic of China.
- College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, Henan, People's Republic of China.
- College of Agronomy, Guizhou University, Guiyang, 550025, Guizhou, People's Republic of China.
| | - Ting Peng
- Innovation Center of Henan Grain Crops, Henan Key Laboratory of Rice Biology, Henan Agricultural University, Zhengzhou, 450046, Henan, People's Republic of China.
- College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, Henan, People's Republic of China.
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Li W, He SX, Zhou QY, Dai ZH, Liu CJ, Xiao SF, Deng SG, Ma LQ. Foliar-selenium enhances plant growth and arsenic accumulation in As-hyperaccumulator Pteris vittata: Critical roles of GSH-GSSG cycle and arsenite antiporters PvACR3. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:135154. [PMID: 38986410 DOI: 10.1016/j.jhazmat.2024.135154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 07/04/2024] [Accepted: 07/06/2024] [Indexed: 07/12/2024]
Abstract
It is known that selenium (Se) enhances plant growth and arsenic (As) accumulation in As-hyperaccumulator Pteris vittata, but the associated mechanisms are unclear. In this study, P. vittata was exposed to 50 μM arsenate (AsV) under hydroponics plus 25 or 50 μM foliar selenate. After 3-weeks of growth, the plant biomass, As and Se contents, As speciation, malondialdehyde (MDA) and glutathione (GSH and GSSG) levels, and important genes related to As-metabolism in P. vittata were determined. Foliar-Se increased plant biomass by 17 - 30 %, possibly due to 9.1 - 19 % reduction in MDA content compared to the As control. Further, foliar-Se enhanced the As contents by 1.9-3.5 folds and increased arsenite (AsIII) contents by 64 - 136 % in the fronds. The increased AsV reduction to AsIII was attributed to 60 - 131 % increase in glutathione peroxidase activity, which mediates GSH oxidation to GSSG (8.8 -29 % increase) in the fronds. Further, foliar-Se increased the expression of AsIII antiporters PvACR3;1-3;3 by 1.6 - 2.1 folds but had no impact on phosphate transporters PvPht1 or arsenate reductases PvHAC1/2. Our results indicate that foliar-Se effectively enhances plant growth and arsenic accumulation by promoting the GSH-GSSG cycle and upregulating gene expression of AsIII antiporters, which are responsible for AsIII translocation from the roots to fronds and AsIII sequestration into the fronds. The data indicate that foliar-Se can effectively improve phytoremediation efficiency of P. vittata in As-contaminated soils.
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Affiliation(s)
- Wei Li
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Si-Xue He
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Qian-Yu Zhou
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Zhi-Hua Dai
- School of Ecology and Environment, Anhui Normal University, Wuhu, Anhui 241000, China.
| | - Chen-Jing Liu
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Shu-Fen Xiao
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Song-Ge Deng
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Lena Q Ma
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
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3
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Huang F, Chen L, Zhou Y, Huang J, Wu F, Hu Q, Chang N, Qiu T, Zeng Y, He H, White JC, Yang W, Fang L. Exogenous selenium promotes cadmium reduction and selenium enrichment in rice: Evidence, mechanisms, and perspectives. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:135043. [PMID: 38941835 DOI: 10.1016/j.jhazmat.2024.135043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2024] [Revised: 06/17/2024] [Accepted: 06/25/2024] [Indexed: 06/30/2024]
Abstract
Cadmium (Cd) accumulation in rice, a global environmental issue, poses a significant threat to human health due to its widespread presence and potential transfer through the food chain. Selenium (Se), an essential micronutrient for humans and plants, can reduce Cd uptake in rice and alleviate Cd-induced toxicity. However, the effects and mechanisms of Se supplementation on rice performance in Cd-contaminated soil remain largely unknown. Here, a global meta-analysis was conducted to evaluate the existing knowledge on the effects and mechanisms by which Se supplementation impacts rice growth and Cd accumulation. The result showed that Se supplementation has a significant positive impact on rice growth in Cd-contaminated soil. Specifically, Se supplementation decreased Cd accumulation in rice roots by 16.3 % (11.8-20.6 %), shoots by 24.6 % (19.9-29.1 %), and grain by 37.3 % (33.4-40.9 %), respectively. The grain Cd reduction was associated with Se dose and soil Cd contamination level but not Se type or application method. Se influences Cd accumulation in rice by regulating the expression of Cd transporter genes (OSLCT1, OSHMA2, and OSHMA3), enhancing Cd sequestration in the cell walls, and reducing Cd bioavailability in the soil. Importantly, Se treatment promoted Se enrichment in rice and alleviated oxidative damage associated with Cd exposure by stimulating photosynthesis and activating antioxidant enzymes. Overall, Se treatment mitigated the health hazard associated with Cd in rice grains, particularly in lightly contaminated soil. These findings reveal that Se supplementation is a promising strategy for simultaneous Cd reduction and Se enrichment in rice.
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Affiliation(s)
- Fengyu Huang
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China; Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan University of Technology, Wuhan 430070, China
| | - Li Chen
- Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan University of Technology, Wuhan 430070, China.
| | - Ying Zhou
- College of Environment and Resource, Xichang University, Xichang 615000, China
| | - Jingqiu Huang
- College of Environment and Resource, Xichang University, Xichang 615000, China
| | - Fang Wu
- College of Environment and Resource, Xichang University, Xichang 615000, China
| | - Qing Hu
- College of Environment and Resource, Xichang University, Xichang 615000, China
| | - Nan Chang
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Tianyi Qiu
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Yi Zeng
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Haoran He
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China
| | - Jason C White
- The Connecticut Agricultural Experiment Station, New Haven, CT 06511, United States
| | - Wenchao Yang
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China.
| | - Linchuan Fang
- Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources, Ministry of Education, Wuhan University of Technology, Wuhan 430070, China; College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China.
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Hussain B, Yin X, Lin Q, Hamid Y, Usman M, Hashmi MLUR, Lu M, Imran Taqi M, He Z, Yang XE. Mitigating cadmium exposure risk in rice with foliar nano-selenium: Investigations through Caco-2 human cell line in-vivo bioavailability assay. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 356:124356. [PMID: 38866319 DOI: 10.1016/j.envpol.2024.124356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 05/23/2024] [Accepted: 06/09/2024] [Indexed: 06/14/2024]
Abstract
The contamination of paddy fields by cadmium and lead is a major issue in China. The consumption of rice grown in heavy metals contaminated areas poses severe health risks to humans, where bioavailability and bioaccessibility remains the critical factor for risk determination. Selenium nanoparticles (Se-NPs) can mitigate the toxicity of heavy metals in plants. However, there exists limited information regarding the role of Se-NPs in dictating cadmium (Cd) toxicity in rice for human consumption. Moreover, the impact of Se-NPs under simultaneous field and laboratory controlled conditions is rarely documented. To address this knowledge gap, a field experiment was conducted followed by laboratory scale bioavailability assays. Foliar application of Se-NPs and selenite (at 5, 10 mg L-1) was performed to assess their efficiency in lowering Cd accumulation, promoting Se biofortification in rice grains, and evaluating Cd exposure risk from contaminated rice. Obtained results indicate that foliar treatments significantly reduced the heavy metal accumulation in rice grains. Specifically, Se-NP 10 mg L-1 demonstrated higher efficiency, reducing Cd and Pb by 56 and 32 % respectively. However, inconsistent trends for bioavailable Cd (0.03 mg kg-1) and bioaccessible (0.04 mg kg-1) were observed while simulated human rice intake. Furthermore, the foliage application of Se-NPs and selenite improved rice quality by elevating Se, Zn, Fe, and protein levels, while lowering phytic acid content in rice grains. In summary, this study suggests the promising potential of foliage spraying of Se-NPs in lowering the health risks associated with consuming Cd-contaminated rice.
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Affiliation(s)
- Bilal Hussain
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Hangzhou, 310058, China
| | - Xianyuan Yin
- Beautiful Rural Construction Center of Quzhou, Quzhou, 324003, Zhejiang, China
| | - Qiang Lin
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Hangzhou, 310058, China
| | - Yasir Hamid
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Hangzhou, 310058, China
| | - Muhammad Usman
- Université de Rennes, Ecole National e Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226, F-35000, Rennes, France
| | - Muhammad Laeeq-Ur-Rehman Hashmi
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Hangzhou, 310058, China
| | - Min Lu
- State Key Laboratory of Nutrient Use and Management, Tea Research Institute, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Muhammad Imran Taqi
- Department of Soil & Environmental Sciences, College of Agriculture, University of Sargodha, 40100 Sargodha, Pakistan
| | - Zhenli He
- Indian River Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Fort Pierce, Florida, 34945, USA
| | - Xiao E Yang
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Hangzhou, 310058, China.
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Wang H, Liu M, Zhang Y, Jiang Q, Wang Q, Gu Y, Song X, Li Y, Ye Y, Wang F, Chen X, Wang Z. Foliar spraying of Zn/Si affects Cd accumulation in paddy grains by regulating the remobilization and transport of Cd in vegetative organs. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 207:108351. [PMID: 38217926 DOI: 10.1016/j.plaphy.2024.108351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 01/07/2024] [Indexed: 01/15/2024]
Abstract
The reduction of cadmium (Cd) accumulation in rice grains through biofortification of essential nutrients like zinc (Zn) and silicon (Si) is an area of study that has gained significant attention. However, there is limited understanding of the mechanism of Zn/Si interaction on Cd accumulation and remobilization in rice plants. This work used a pot experiment to examine the effects of Zn and Si applied singly or in combination on the physiological metabolism of Cd in different rice organs under Cd stress. The results revealed that: Zn/Si application led to a significant decrease in root Cd concentration and reduce the value of Tf Soil-Root in filling stage. The content of phytochelatin (PCs, particularly PC2) and glutathione (GSH) in roots, top and basal nodes were increased with Zn/Si treatment application. Furthermore, Zn/Si treatment promoted the distribution of Cd in cell wall during Cd stress. These findings suggest that Zn/Si application facilitates the compartmentalization of Cd within subcellular structures and enhances PCs production in vegetative organs, thereby reducing Cd remobilization. Zn/Si treatment upregulated the metabolism of amino acid components involved in osmotic regulation, secondary metabolite synthesis, and plant chelating peptide synthesis in vegetative organs. Additionally, it significantly decreased the accumulation of Cd in globulin, albumin, and glutelin, resulting in an average reduction of 50.87% in Cd concentration in milled rice. These results indicate that Zn/Si nutrition plays a crucial role in mitigating heavy metal stress and improving the nutritional quality of rice by regulating protein composition and coordinating amino acid metabolism balance.
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Affiliation(s)
- Huicong Wang
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, 223003, PR China
| | - Mingsong Liu
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, 223003, PR China
| | - Ying Zhang
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, 223003, PR China
| | - Qin Jiang
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, 223003, PR China
| | - Qingping Wang
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, 223003, PR China
| | - Yuqin Gu
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, 223003, PR China
| | - Xinping Song
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, 223003, PR China
| | - Yang Li
- College of Agronomy, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Yuxiu Ye
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, 223003, PR China; Jiangsu Provincial Agricultural Green and Low Carbon Production Technology Engineering Research Center, PR China
| | - Feibing Wang
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, 223003, PR China; Jiangsu Provincial Agricultural Green and Low Carbon Production Technology Engineering Research Center, PR China
| | - Xinhong Chen
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, 223003, PR China; Jiangsu Provincial Agricultural Green and Low Carbon Production Technology Engineering Research Center, PR China
| | - Zunxin Wang
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, 223003, PR China; Jiangsu Provincial Agricultural Green and Low Carbon Production Technology Engineering Research Center, PR China.
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Li Y, Liu M, Wang H, Li C, Zhang Y, Dong Z, Fu C, Ye Y, Wang F, Chen X, Wang Z. Effects of different phosphorus fertilizers on cadmium absorption and accumulation in rice under low-phosphorus and rich-cadmium soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:11898-11911. [PMID: 38225492 DOI: 10.1007/s11356-024-31986-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 01/08/2024] [Indexed: 01/17/2024]
Abstract
Rice is the main food crops with the higher capacity for cadmium (Cd) uptake, necessitating the urgent need for remediation measures to address Cd in paddy soil. Reasonable agronomic methods are convenient and favorable for fixing the issue. In this study, a pot experiment was employed to evaluate the effects of two foliar (NaH2PO4, SDP; KH2PO4, PDP) and two solid phosphate fertilizers (double-superphosphate, DSP; calcium-magnesium phosphate, CMP) on uptake and remobilization of Cd in rice plants under the low-P and rich-Cd soil. The results revealed that these four phosphorus fertilizer significantly down-regulated the relative expression of OsNRAMP5 involved in Cd absorption, while up-regulated OsPCS1 expression and increased distribution of Cd into the cell wall in roots. Furthermore, phosphorus fertilizer resulted in a significant decrease in the relative expression of OsLCT1 in stems and OsLCD in leaves, decreased the transfer factor of Cd from shoots to grains, and ulterior reduced the Cd accumulation in three protein components of globulin, albumin, and glutelin, making the average Cd concentration of brown rice decreased by 82.96%. These results comprehensively indicate that in situations with similar soil backgrounds, the recommended application of solid CMP and foliar PDP can alleviate the toxicity of Cd by reducing its absorption and remobilization.
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Affiliation(s)
- Yang Li
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, 223003, China
| | - Mingsong Liu
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, 223003, China
| | - Huicong Wang
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, 223003, China
| | - Chunhui Li
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, 223003, China
| | - Ying Zhang
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, 223003, China
| | - Zhiyao Dong
- Jilin Provincial Key Laboratory of Plant Resource Science and Green Production, Jilin Normal University, Siping, 136000, China
| | - Chuanlan Fu
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, 223003, China
| | - Yuxiu Ye
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, 223003, China
- Jiangsu Provincial Agricultural Green and Low Carbon Production Technology Engineering Research Center, Huai'an, 223003, China
| | - Feibing Wang
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, 223003, China
- Jiangsu Provincial Agricultural Green and Low Carbon Production Technology Engineering Research Center, Huai'an, 223003, China
| | - Xinhong Chen
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, 223003, China
- Jiangsu Provincial Agricultural Green and Low Carbon Production Technology Engineering Research Center, Huai'an, 223003, China
| | - Zunxin Wang
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, 223003, China.
- Jiangsu Provincial Agricultural Green and Low Carbon Production Technology Engineering Research Center, Huai'an, 223003, China.
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Zhang X, Xue W, Zhang C, Wang C, Huang Y, Wang Y, Peng L, Liu Z. Cadmium pollution leads to selectivity loss of glutamate receptor channels for permeation of Ca 2+/Mn 2+/Fe 2+/Zn 2+ over Cd 2+ in rice plant. JOURNAL OF HAZARDOUS MATERIALS 2023; 452:131342. [PMID: 37023578 DOI: 10.1016/j.jhazmat.2023.131342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/27/2023] [Accepted: 03/31/2023] [Indexed: 05/03/2023]
Abstract
The selective permeation of glutamate receptor channels (GLRs) for essential and toxic elements in plant cells is poorly understood. The present study found that the ratios between cadmium (Cd) and 7 essential elements (i.e., K, Mg, Ca, Mn, Fe, Zn and Cu) in grains and vegetative organs increased significantly with the increase of soil Cd levels. Accumulation of Cd resulted in the significant increase of Ca, Mn, Fe and Zn content and the expression levels of Ca channel genes (OsCNGC1,2 and OsOSCA1.1,2.4), while remarkable reduction of glutamate content and expression levels of GLR3.1-3.4 in rice. When planted in the same Cd-polluted soil, mutant fc8 displayed significantly higher content of Ca, Fe, Zn and expression levels of GLR3.1-3.4 than its wild type NPB. On the contrary, the ratios between Cd and essential elements in fc8 were significantly lower than that in NPB. These results indicate that Cd pollution may damage the structural integrity of GLRs by inhibiting glutamate synthesis and expression levels of GLR3.1-3.4, which leads to the increase of ion influx but the decrease of preferential selectivity for Ca2+/ Mn2+/ Fe2+/ Zn2+ over Cd2+ through GLRs in rice cells.
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Affiliation(s)
- Xin Zhang
- Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, P.R. China, Tianjin 300191, China
| | - Weijie Xue
- Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, P.R. China, Tianjin 300191, China
| | - Changbo Zhang
- Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, P.R. China, Tianjin 300191, China
| | - Changrong Wang
- Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, P.R. China, Tianjin 300191, China
| | - Yongchun Huang
- Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, P.R. China, Tianjin 300191, China
| | - Yanting Wang
- Biomass and Bioenergy Research Centre, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Liangcai Peng
- Biomass and Bioenergy Research Centre, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Zhongqi Liu
- Key Laboratory of Original Agro-Environmental Pollution Prevention and Control, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, P.R. China, Tianjin 300191, China.
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