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Yu S, Sheng Q, Sahito ZA, Wang W, Xu S, Lian J, Du P, Tong W, Feng Y, Yang X. Harmonizing soil restoration and microbial diversity: Insights from a Two-Year field experiment with Sedum-Rice rotation systems. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 951:175336. [PMID: 39134265 DOI: 10.1016/j.scitotenv.2024.175336] [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: 08/03/2024] [Accepted: 08/04/2024] [Indexed: 08/17/2024]
Abstract
Phytoremediation coupled with agroproduction (PCA) model contributes to sustainable agriculture and environmental management. This study investigated the impact of continuous cropping early/late season rice (RR) and Sedum alfredii-rice rotation (SR) on soil physical and chemical properties, as well as their relationships with soil microbial community. In 2022, SR treatment significantly increased pH value and organic matter content by 7 % and 17 %, respectively, compared to the levels in 2020, while RR treatment showed no change. RR treatment resulted in a significant decrease in soil concentrations of Ca, Mg, and K by 18.42 %, 29.01 %, and 7.77 %, respectively. Furthermore, SR treatment saw reductions of 29.62 % in total Cd and 38.30 % in DTPA extractable Cd in the soil. Over the two years, both treatments notably influenced the diversity, structure, and network of the rhizosphere bacterial and fungal communities, which are crucial for nutrient cycling and plant health. Notably, SR treatment exhibited a more complex network compared to RR, suggesting a greater impact on the interconnected systems. Therefore, these findings highlight the potential of Sedum rotation system to rehabilitate contaminated soils while supporting agricultural practices, which is essential for food security and environmental sustainability. This research direction holds promise for future exploration and application in the fields of phytoremediation and agroecology.
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Affiliation(s)
- Song Yu
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Qi Sheng
- Shenergy Environmental Technology Co., Ltd, Room 506, Building 8, Xixi Octagon City, Wuchang Street, Zhejiang Province, People's Republic of China
| | - Zulfiqar Ali Sahito
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Wenkai Wang
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Shunan Xu
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Jiapan Lian
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Pengtao Du
- Jiangsu Provincial Key Lab of Solid Organic Waste Utilization, Jiangsu Collaborative Innovation Center of Solid Organic Wastes, Educational Ministry Engineering Center of Resource-Saving Fertilizers, Nanjing Agricultural University, Nanjing 210095, Jiangsu, People's Republic of China
| | - Wenbin Tong
- Agricultural Technology Promotion Center, Qujiang District, Quzhou City, Zhejiang Province, People's Republic of China.
| | - Ying Feng
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Xiaoe Yang
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Science, Zhejiang University, Hangzhou 310058, People's Republic of China.
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Zhang P, Zhang Y, Pang W, Alonazi MA, Alwathnani H, Rensing C, Xie R, Zhang T. Cenococcum geophilum impedes cadmium toxicity in Pinus massoniana by modulating nitrogen metabolism. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:174296. [PMID: 38944303 DOI: 10.1016/j.scitotenv.2024.174296] [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: 04/07/2024] [Revised: 06/23/2024] [Accepted: 06/23/2024] [Indexed: 07/01/2024]
Abstract
Nitrogen (N) is of great significance to the absorption, distribution and detoxification of cadmium (Cd). Ectomycorrhizal fungi (EMF) are able to affect the key processes of plant N uptake to resist Cd stress, while the mechanism is still unclear. Therefore, we explored potential strategies of Cenococcum geophilum (C. geophilum) symbiosis to alleviate Cd stress in Pinus massoniana (P. massoniana) from the perspective of plant N metabolism and soil N transformation. The results showed that inoculation of C. geophilum significantly increased the activities of NR, NiR and GS in the shoots and roots of P. massoniana, thereby promoting the assimilation of NO3- and NH4+ into amino acids. Moreover, C. geophilum promoted soil urease and protease activities, but decreased soil NH4+ content, indicating that C. geophilum might increase plant uptake of soil inorganic N. qRT-PCR results showed that C3 symbiosis significantly up-regulated the expression of genes encoding functions involved in NH4+ uptake (AMT3;1), NO3- uptake (NRT2.1, NRT2.4, NRT2.9), as well as Cd resistance (ABCC1 and ABCC2), meanwhile down-regulated the expression of NRT7.3, Cd transporter genes (HMA2 and NRAMP3) in the roots of P. massoniana seedlings. These results demonstrated that C. geophilum was able to alleviate Cd stress by increasing the absorption and assimilation of inorganic N in plants and inhibiting the transport of Cd from roots to shoots, which provided new insights into how EMF improved host resistance to abiotic stress.
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Affiliation(s)
- Panpan Zhang
- International Joint Laboratory of Forest Symbiology, College of Juncao Science and Ecology (College of Carbon Neutrality), Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yuhu Zhang
- International Joint Laboratory of Forest Symbiology, College of Juncao Science and Ecology (College of Carbon Neutrality), Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Wenbo Pang
- International Joint Laboratory of Forest Symbiology, College of Juncao Science and Ecology (College of Carbon Neutrality), Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Madeha A Alonazi
- Department of Botany and Microbiology, King Saud University, Riyadh, Saudi Arabia
| | - Hend Alwathnani
- Department of Botany and Microbiology, King Saud University, Riyadh, Saudi Arabia
| | - Christopher Rensing
- Key Laboratory of Soil Ecosystem Health and Regulation of Fujian Provincial University, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Rongzhang Xie
- Forestry Bureau, Sanyuan District, Sanming 365000, China
| | - Taoxiang Zhang
- International Joint Laboratory of Forest Symbiology, College of Juncao Science and Ecology (College of Carbon Neutrality), Fujian Agriculture and Forestry University, Fuzhou 350002, China.
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Zhang P, Li J, Li T, Li X, Lu Y, Wu J. Transcriptome analysis of potassium-mediated cadmium accumulation in sweet sorghum. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:109064. [PMID: 39191042 DOI: 10.1016/j.plaphy.2024.109064] [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: 06/11/2024] [Revised: 08/01/2024] [Accepted: 08/20/2024] [Indexed: 08/29/2024]
Abstract
Cadmium (Cd) pollution in the soil is a serious environmental issue worldwide. Phytoextraction of Cd-polluted soil is a cost-effective, sustainable and environmentally-friendly strategy. Agricultural fertilizer management is beneficial for promoting the Cd phytoremediation efficiency. Potassium (K) is the nutrient required in the largest amount cation by plants. Sweet sorghum exhibits a substantial phytoremediation potential of Cd-polluted soil. Clarifying the mechanism of K-mediated Cd accumulation in sweet sorghum is imperative. Sweet sorghum plants were grown hydroponically with an extra K supply in the presence or absence of Cd treatment. An extra K application significantly increased plant growth under non-Cd addition, while K lost the profitable effect under Cd stress. K supplementation remarkably enhanced Cd concentrations and Cd accumulation in shoots and roots of sweet sorghum. Transcriptome analysis demonstrated that zinc ion transport, cysteine and methionine metabolism, flavonoid biosynthesis and phenylpropanoid biosynthesis pathways might contribute to the increased Cd accumulation as affected by an extra K supply. Furthermore, SbZIP9, SbSTP8, SbYS1, SbMAG and SbFOMT-like were targeted as they closely correlated with both plant growth and Cd stress in sweet sorghum. SbFOMT-like showed an independent pathway, while SbZIP9, SbSTP8, SbYS1 and SbMAG displayed positive correlations mutually. Notably, SbZIP9 and SbFOMT-like were highly expressed when compared with other target genes. Taken together, SbZIP9 and SbFOMT-like were upregulated and downregulated by an extra K supply under Cd stress, suggesting that SbZIP9 and SbFOMT-like enhances and declines Cd accumulation as regulated by K addition in sweet sorghum respectively.
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Affiliation(s)
- Pan Zhang
- Shaanxi Key Laboratory of Chinese Jujube, College of Life Sciences, Yan'an University, Yan'an, Shaanxi, 716000, China
| | - Juan Li
- Key Laboratory of Degraded and Unused Land Consolidation Engineering, Ministry of Natural Resources of the People's Republic of China, Xi'an, 710075, China
| | - Ting Li
- Shaanxi Key Laboratory of Chinese Jujube, College of Life Sciences, Yan'an University, Yan'an, Shaanxi, 716000, China
| | - Xiaoxiao Li
- Shaanxi Key Laboratory of Chinese Jujube, College of Life Sciences, Yan'an University, Yan'an, Shaanxi, 716000, China
| | - Yuan Lu
- Shaanxi Key Laboratory of Chinese Jujube, College of Life Sciences, Yan'an University, Yan'an, Shaanxi, 716000, China
| | - Jiawen Wu
- Shaanxi Key Laboratory of Chinese Jujube, College of Life Sciences, Yan'an University, Yan'an, Shaanxi, 716000, China.
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Chatterjee Y, Pareek A, Singla-Pareek SL. OsLdh7, a rice lactate dehydrogenase, confers stress resilience in rice under cadmium stress through NAD +/NADH regulation. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:109009. [PMID: 39154420 DOI: 10.1016/j.plaphy.2024.109009] [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: 04/08/2024] [Revised: 08/01/2024] [Accepted: 08/02/2024] [Indexed: 08/20/2024]
Abstract
Lactate dehydrogenase (Ldh, EC 1.1.1.27), an oxidoreductase enzyme catalyses the interconversion of pyruvate to L-lactate and vice-versa with concomitant oxidation and reduction of NADH and NAD+. The enzyme functions as a ROS sensor and mitigates stress response by maintaining NAD+/NADH homeostasis. In this study, we delineated the role of the Ldh enzyme in imparting cadmium stress tolerance in rice. Previously, we identified a putatively active Ldh in rice (OsLdh7) through insilico modelling. Biochemical characterization of the OsLdh7 enzyme revealed it to be optimally active at pH 6.6 in the forward direction and pH 9 in the reverse direction. Overexpression of OsLdh7 in rice cv. IR64, increased tolerance of the transgenic lines to cadmium stress compared to the wild type (WT) at both seedling and reproductive stages. The transgenic lines showed increased enzyme activity in the reverse direction under cadmium stress, attributed to elevated cytosolic pH resulting from increased calcium concentration. This increased NADH content is highly essential for functioning of the ROS scavenging enzymes, RbohD and MPK6. qPCR analysis revealed that the overexpression lines had increased transcript abundance of these genes indicating an effective ROS scavenging mechanism. Additionally, the overexpression lines showed an efficient cadmium sequestration mechanism compared to the WT by increasing the transcript levels of the vacuolar transporters of cadmium as well as total phytochelatin content. Thus, our findings indicated OsLdh7 imparts cadmium stress tolerance in rice through a two-pronged approach by mitigating ROS and sequestering cadmium ions, highlighting its potential for crop improvement programs.
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Affiliation(s)
- Yajnaseni Chatterjee
- Plant Stress Biology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, 110067, India
| | - Ashwani Pareek
- Stress Physiology and Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Sneh Lata Singla-Pareek
- Plant Stress Biology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, 110067, India.
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Gong C, Yin X, Cheng L, Huang Y, Shi R, Xie M, Yang G, Kong L, Zhang W, Chen X. GmIRT1.1 from soybean (Glycine max L.) is involved in transporting Fe, Mn and Cd. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:109010. [PMID: 39146910 DOI: 10.1016/j.plaphy.2024.109010] [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: 02/02/2024] [Revised: 07/16/2024] [Accepted: 08/02/2024] [Indexed: 08/17/2024]
Abstract
Soybean is one of the most important crops for producing high quality oil and protein. Mineral nutrient deficiencies are frequently observed in soybeans. However, there are few studies to understand the absorption process of mineral nutrients in soybeans. Here, we investigated the functions of soybean (Glycine max L.) IRT1.1 (IRON-REGULATED TRANSPORTER 1.1) in the transportation of mineral elements. Heterologous expression of GmIRT1.1 in yeast mutants revealed that GmIRT1.1 compensated for the growth defects of Δfet3fet4 and Δsmf1 mutants under iron (Fe) and manganese (Mn) deficiency conditions, respectively, and enhanced the sensitivity of the Δycf1 mutant to cadmium (Cd) toxicity. Expression analysis revealed that GmIRT1.1 was only significantly induced by Fe deficiency and was primarily expressed in roots. Furthermore, the GmIRT1.1 overexpression lines enhanced Arabidopsis tolerance to Fe deficiency, leading to increased accumulation of Fe in the roots and shoots. Additionally, the transgenic lines increased the sensitivity to Mn and Cd toxicity. Subcellular localization analysis revealed that GmIRT1.1 was localized on the plasma membrane. Moreover, the results obtained from the soybean hairy roots system indicated that the localization of GmIRT1.1 was dependent on the regulation of Fe homeostasis in plant. Consequently, these results suggested that GmIRT1.1 was responsible for the transportation of Fe, Mn and Cd.
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Affiliation(s)
- Changyi Gong
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
| | - Xinghua Yin
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
| | - Liqing Cheng
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
| | - Yunfeng Huang
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
| | - Renkui Shi
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
| | - Mengya Xie
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
| | - Guang Yang
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
| | - Linghui Kong
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
| | - Wei Zhang
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
| | - Xi Chen
- Department of Biochemistry & Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China.
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Dong Q, Xiao C, Cheng W, Yu H, Liu G, Liu Y, Guo Y, Liang Y, Shi J, Yin Y, Cai Y, Jiang G. Phytoavailability, translocation, and accompanying isotopic fractionation of cadmium in soil and rice plants in paddy fields. JOURNAL OF HAZARDOUS MATERIALS 2024; 477:135321. [PMID: 39068886 DOI: 10.1016/j.jhazmat.2024.135321] [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: 04/15/2024] [Revised: 07/18/2024] [Accepted: 07/24/2024] [Indexed: 07/30/2024]
Abstract
Rice consumption is a major pathway for human cadmium (Cd) exposure. Understanding Cd behavior in the soil-rice system, especially under field conditions, is pivotal for controlling Cd accumulation. This study analyzed Cd concentrations and isotope compositions (δ114/110Cd) in rice plants and surface soil sampled at different times, along with urinary Cd of residents from typical Cd-contaminated paddy fields in Youxian, Hunan, China. Soil water-soluble Cd concentrations varied across sampling times, with δ114/110Cdwater lighter under drained than flooded conditions, suggesting supplementation of water-soluble Cd by isotopically lighter Cd pools, increasing Cd phytoavailability. Both water-soluble Cd and atmospheric deposition contributed to rice Cd accumulation. Water-soluble Cd's contribution increased from 28-52% under flooded to 58-87% under drained conditions due to increased soil Cd phytoavailability. Atmospheric deposition's contribution (12-72%) increased with potential atmospheric deposition flux among sampling areas. The enrichment of heavy Cd isotopes occurred from root-stem-grain to prevent rice Cd accumulation. The different extent of enrichment of heavy isotopes in urine indicated different Cd exposure sources. These findings provide valuable insights into the speciation and phytoavailability changes of Cd in the soil-rice system and highlight the potential application of Cd isotopic fingerprinting in understanding the environmental fate of Cd.
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Affiliation(s)
- Qiang Dong
- Laboratory of Green Innovation, Advanced Institute of Natural Sciences, Beijing Normal University, Zhuhai 519087, China; Laboratory of Environmental Nanotechnology and Health Effect, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Cailing Xiao
- Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, School of Environment and Health, Jianghan University, Wuhan 430056, China
| | - Wenhan Cheng
- School of Resource & Environment, Anhui Agricultural University, Hefei 230036, China
| | - Huimin Yu
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China
| | - Guangliang Liu
- Department of Chemistry and Biochemistry, Florida International University, Miami, FL 33199, United States
| | - Yanwei Liu
- Laboratory of Environmental Nanotechnology and Health Effect, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yingying Guo
- Laboratory of Environmental Nanotechnology and Health Effect, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yong Liang
- Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, School of Environment and Health, Jianghan University, Wuhan 430056, China.
| | - Jianbo Shi
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yongguang Yin
- Laboratory of Environmental Nanotechnology and Health Effect, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China.
| | - Yong Cai
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Department of Chemistry and Biochemistry, Florida International University, Miami, FL 33199, United States
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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Cao L, Ren W, Liu L, Zheng J, Tao C, Zhu W, Xiang M, Wang L, Liu Y, Zheng P. CDR1, a DUF946 domain containing protein, positively regulates cadmium tolerance in Arabidopsis thaliana by maintaining the stability of OPT3 protein. JOURNAL OF HAZARDOUS MATERIALS 2024; 477:135313. [PMID: 39067296 DOI: 10.1016/j.jhazmat.2024.135313] [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: 04/15/2024] [Revised: 07/21/2024] [Accepted: 07/23/2024] [Indexed: 07/30/2024]
Abstract
Industrial and agricultural production processes lead to the accumulation of cadmium (Cd) in soil, resulting in crops absorb Cd from contaminated soil and then transfer it to human body through the food chain, posing a serious threat to human health. Thus, it is necessary to explore novel genes and mechanisms involved in regulating Cd tolerance and detoxification in plants. Here, we found that CDR1, a DUF946 domain containing protein, localizes to the plasma membrane and positively regulates Cd stress tolerance. The cdr1 mutants exhibited Cd sensitivity, accumulated excessive Cd in the seeds and roots, but decreased in leaves. However, CDR1-OE transgenic plants not only showed Cd tolerance but also significantly reduced Cd in seeds and roots. Additionally, both in vitro and in vivo assays demonstrated an interaction between CDR1 and OPT3. Cell free protein degradation and OPT3 protein level determination assays indicated that CDR1 could maintain the stability of OPT3 protein. Moreover, genetic phenotype analysis and Cd content determination showed that CDR1 regulates Cd stress tolerance and affect the distribution of Cd in plants by maintaining the stability of OPT3 protein. Our discoveries provide a key candidate gene for directional breeding to reduce Cd accumulation in edible seeds of crops.
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Affiliation(s)
- Lei Cao
- Anhui Province Key Laboratory of Horticultural Crop Quality Biology, School of Horticulture, Anhui Agricultural University, Hefei 230036, China; School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui 230009, China
| | - Wangmei Ren
- Anhui Province Key Laboratory of Horticultural Crop Quality Biology, School of Horticulture, Anhui Agricultural University, Hefei 230036, China
| | - Linyao Liu
- Anhui Province Key Laboratory of Horticultural Crop Quality Biology, School of Horticulture, Anhui Agricultural University, Hefei 230036, China
| | - Jiale Zheng
- Anhui Province Key Laboratory of Horticultural Crop Quality Biology, School of Horticulture, Anhui Agricultural University, Hefei 230036, China
| | - Cheng Tao
- Anhui Province Key Laboratory of Horticultural Crop Quality Biology, School of Horticulture, Anhui Agricultural University, Hefei 230036, China
| | - Wenyan Zhu
- Anhui Province Key Laboratory of Horticultural Crop Quality Biology, School of Horticulture, Anhui Agricultural University, Hefei 230036, China
| | - Minghao Xiang
- Anhui Province Key Laboratory of Horticultural Crop Quality Biology, School of Horticulture, Anhui Agricultural University, Hefei 230036, China
| | - Lihuan Wang
- Anhui Province Key Laboratory of Horticultural Crop Quality Biology, School of Horticulture, Anhui Agricultural University, Hefei 230036, China
| | - Yongsheng Liu
- Anhui Province Key Laboratory of Horticultural Crop Quality Biology, School of Horticulture, Anhui Agricultural University, Hefei 230036, China.
| | - Pengpeng Zheng
- Anhui Province Key Laboratory of Horticultural Crop Quality Biology, School of Horticulture, Anhui Agricultural University, Hefei 230036, China.
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Meng Y, Li M, Guo Z, Chen J, Wu J, Xia Z. The transcription factor ZmbHLH105 confers cadmium tolerance by promoting abscisic acid biosynthesis in maize. JOURNAL OF HAZARDOUS MATERIALS 2024; 480:135826. [PMID: 39270588 DOI: 10.1016/j.jhazmat.2024.135826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2024] [Revised: 08/25/2024] [Accepted: 09/11/2024] [Indexed: 09/15/2024]
Abstract
Cadmium (Cd), a highly toxic heavy metal, profoundly impacts crop productivity. The bHLH-type transcription factors regulate plant stress responses, yet their involvement in maize's Cd stress response remains unclear. Here, we studied ZmbHLH105, a maize bHLH gene induced by Cd exposure. Overexpression of ZmbHLH105 in maize seedlings, which were treated with 1.0 mM CdCl2 for 7 days, increased endogenous ABA levels, decreased Cd accumulation, and enhanced Cd stress tolerance. ZmbHLH105 directly bound to promoter regions of two key ABA biosynthesis genes ZmNCED1/2, activating their transcription, thus boosting ABA levels and Cd tolerance. ZmbHLH105-overexpression promoted lignin synthesis, while ZmbHLH105-RNAi attenuated this effect. Exogenous ABA supplementation increased lignin content in Cd-stressed maize roots, suggesting ZmbHLH105-mediated Cd tolerance involves ABA-induced lignin deposition and cell wall thickening. Moreover, Cd transport-related gene expression was suppressed in ZmbHLH105 overexpression lines. Our findings demonstrate that ZmbHLH105 decreases Cd accumulation, improving Cd tolerance by enhancing ABA biosynthesis, increasing lignin deposition, thickening cell walls, and inhibiting Cd absorption in maize roots. This study unveils ZmbHLH105's mechanisms in Cd tolerance, highlighting its potential in breeding low Cd-accumulating crops for food and environment safety.
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Affiliation(s)
- Yazhou Meng
- College of Life Science, Henan Agricultural University, Zhengzhou, Henan 450046, China
| | - Mengyao Li
- College of Life Science, Henan Agricultural University, Zhengzhou, Henan 450046, China
| | - Ziting Guo
- College of Life Science, Henan Agricultural University, Zhengzhou, Henan 450046, China
| | - Jiafa Chen
- College of Life Science, Henan Agricultural University, Zhengzhou, Henan 450046, China; Synergetic Innovation Center of Henan Grain Crops and State Key Laboratory of Wheat & Maize Crop Science, Zhengzhou, Henan 450046, China
| | - Jianyu Wu
- College of Life Science, Henan Agricultural University, Zhengzhou, Henan 450046, China; Synergetic Innovation Center of Henan Grain Crops and State Key Laboratory of Wheat & Maize Crop Science, Zhengzhou, Henan 450046, China
| | - Zongliang Xia
- College of Life Science, Henan Agricultural University, Zhengzhou, Henan 450046, China; Synergetic Innovation Center of Henan Grain Crops and State Key Laboratory of Wheat & Maize Crop Science, Zhengzhou, Henan 450046, China.
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9
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Díaz AS, da Cunha Cruz Y, Duarte VP, de Castro EM, Magalhães PC, Pereira FJ. The role of sodium nitroprusside (SNP) in alleviating cadmium stress in maize plants. PROTOPLASMA 2024:10.1007/s00709-024-01987-2. [PMID: 39251440 DOI: 10.1007/s00709-024-01987-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Accepted: 09/01/2024] [Indexed: 09/11/2024]
Abstract
Cadmium (Cd) is a heavy metal that is highly toxic to plants and animals and can accumulate in the environment as a result of industrial activities and agricultural application of some types of phosphate fertilizer. This study aimed to assess the role of sodium nitroprusside (SNP), as a source of nitric oxide (NO) in alleviating Cd stress in maize plants. Maize plants were kept in soil saturated with 40%-strength nutrient solution in a greenhouse, and cadmium nitrate, Cd(NO3)2, was applied at different concentrations, (0, 10, and 50 µM). Sodium nitroprusside, [Fe(CN)5NO]·2H2O, at concentrations of 0.05, 0.1, and 0.2 µM. Growth, leaf gas exchange, and leaf anatomy analyses were performed. The experimental design was completely randomized in a 3 × 3 factorial arrangement with five replicates. The highest concentrations of Cd and SNP reduced the total dry mass and leaf and stem dry mass but increased the allocation of biomass to the roots and stem, but the leaf allocation did not change. The application of Cd and SNP promoted an increase in gas exchange and leaf area, in addition to an increase in leaf tissue thickness and stomatal density. The presence of SNP at low concentrations reduces the toxicity of Cd, but at high concentrations, this compound can generate negative effects and even toxicity in maize plants.
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Affiliation(s)
| | - Yasmini da Cunha Cruz
- Universidade Federal de Lavras, Lavras, Minas Gerais State, Zip Code 37200-000, Brazil
| | | | | | | | - Fabricio José Pereira
- Universidade Federal de Alfenas, Instituto de Ciências da Natureza, Rua Gabriel Monteiro da Silva, 700, Centro, Alfenas, MG, Zip Code: 37130-001, Brazil.
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10
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Liu Z, Hou L, Yan J, Ahmad P, Qin M, Li R, El-Sheikh MA, Deshmukh R, Sudhakaran SS, Ali B, Zhang L, Yang L, Liu P. Aquaporin mediated silicon-enhanced root hydraulic conductance is benefit to cadmium dilution in tobacco seedlings. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:134905. [PMID: 38941827 DOI: 10.1016/j.jhazmat.2024.134905] [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: 03/25/2024] [Revised: 05/23/2024] [Accepted: 06/12/2024] [Indexed: 06/30/2024]
Abstract
Numerous studies shown that silicon (Si) enhanced plants' resistance to cadmium (Cd). Most studies primarily focused on investigating the impact of Si on Cd accumulation. However, there is a lack of how Si enhanced Cd resistance through regulation of water balance. The study demonstrated that Si had a greater impact on increasing fresh weight compared to dry weight under Cd stress. This effect was mainly attributed to Si enhanced plant relative water content (RWC). Plant water content depends on the dynamic balance of water loss and water uptake. Our findings revealed that Si increased transpiration rate and stomatal conductance, leading to higher water loss. This, in turn, negatively impacted water content. The increased water content caused by Si could ascribe to improve root water uptake. The Si treatment significantly increased root hydraulic conductance (Lpr) by 131 % under Cd stress. This enhancement was attributed to Si upregulation genes expression of NtPIP1;1, NtPIP1;2, NtPIP1;3, and NtPIP2;1. Through meticulously designed scientific experiments, this study showed that Si enhanced AQP activity, leading to increased water content that diluted Cd concentration and ultimately improved plant Cd resistance. These findings offered fresh insights into the role of Si in bolstering plant resistance to Cd.
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Affiliation(s)
- Zhiguo Liu
- College of Plant Protection, Shandong Agricultural University, Taian 271000, China
| | - Lei Hou
- College of Plant Protection, Shandong Agricultural University, Taian 271000, China
| | - Jiyuan Yan
- College of Plant Protection, Shandong Agricultural University, Taian 271000, China
| | - Parvaiz Ahmad
- Department of Botany, GDC Pulwama, Jammu and Kashmir, India
| | - Mengzhan Qin
- College of Plant Protection, Shandong Agricultural University, Taian 271000, China
| | - Runze Li
- College of Plant Protection, Shandong Agricultural University, Taian 271000, China
| | - Mohamed A El-Sheikh
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Rupesh Deshmukh
- Department of Biotechnology, Central University of Haryana, Mahendragarh, India
| | - Sreeja S Sudhakaran
- Department of Biotechnology, Central University of Haryana, Mahendragarh, India
| | - Basharat Ali
- Department of Agricultural Engineering, Khwaja Fareed University of Engineering and Information Technology, Rahim yar Khan 64200, Pakistan
| | - Li Zhang
- College of Plant Protection, Shandong Agricultural University, Taian 271000, China
| | - Long Yang
- College of Plant Protection, Shandong Agricultural University, Taian 271000, China
| | - Peng Liu
- College of Plant Protection, Shandong Agricultural University, Taian 271000, China.
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11
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Hassan H, Elaksher SH, Shabala S, Ouyang B. Cadmium uptake and detoxification in tomato plants: Revealing promising targets for genetic improvement. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 214:108968. [PMID: 39074436 DOI: 10.1016/j.plaphy.2024.108968] [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: 03/29/2024] [Revised: 07/01/2024] [Accepted: 07/22/2024] [Indexed: 07/31/2024]
Abstract
Cadmium (Cd) is a hazardous heavy metal known for its detrimental effects on plants, human health, and the environment. This review article delves into the dynamics of Cd uptake, long-distance transport, and its impact on plant performance, with a specific focus on tomato plants. The process of Cd uptake by roots and its subsequent long-distance transport in the xylem and phloem are explored to understand how Cd influences plants operation. The toxic effects of Cd on tomato plants are discussed, highlighting on the challenges it poses to plant growth and development. Furthermore, the review investigates various Cd tolerance mechanisms in plants, including avoidance or exclusion by the root cell wall, root-to-shoot translocation, detoxification pathways, and antioxidative defence systems against Cd-induced stress. In addition, the transcriptomic analyses of tomato plants under Cd stress provide insights into the molecular responses and adaptations of plants to Cd toxicity. Overall, this comprehensive review enhances our understanding of Cd-plant interactions and reveal promising genes for tomato genetic improvement to increase its tolerance to cadmium.
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Affiliation(s)
- Heba Hassan
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, Joint International Research Laboratory of Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan, 430070, China; Genetics Department, Faculty of Agriculture, Ain Shams University, Cairo, 11241, Egypt.
| | - Salma Hassan Elaksher
- Genetics and Genetic Engineering Department, Faculty of Agriculture, Benha University, Moshtohor, 13736, Qalyubia, Egypt.
| | - Sergey Shabala
- School of Biological Science, University of Western Australia, Crawley, WA, Australia; International Research Centre for Environmental Membrane Biology, Foshan University, Foshan, 528000, China.
| | - Bo Ouyang
- National Key Laboratory for Germplasm Innovation and Utilization of Horticultural Crops, Joint International Research Laboratory of Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan, 430070, China.
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12
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Chen M, Sun Y, Niu J, Zhou H, Zhou Y, Chen X. As(V) adsorption by FeOOH@coal gangue composite from aqueous solution: performance and mechanisms. ENVIRONMENTAL TECHNOLOGY 2024; 45:4376-4387. [PMID: 37609908 DOI: 10.1080/09593330.2023.2251655] [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: 12/14/2022] [Accepted: 04/22/2023] [Indexed: 08/24/2023]
Abstract
Arsenic (As) pollution in water poses a significant threat to the ecological environment and human health. Meanwhile, the resource utilisation of coal gangue is of utmost importance in ecologically sustainable development. Thus, the FeOOH@coal gangue composite (FeOOH@CG) was synthesised for As(V) adsorption in this study. The results showed that α-FeOOH, β-FeOOH and Schwertmannite loaded on the surface of FeOOH@CG. Moreover, the adsorption behaviour of As(V) by FeOOH@CG was investigated under different reaction conditions, such as pH, contact time, initial concentration and co-existing anions. The optimum adsorption conditions were as follows: initial As(V) concentration of 60 mg/L, pH of 3.0 and adsorption time of 180-240 h. The adsorption capacity of FeOOH@CG for As(V) was pH-dependent and the maximum adsorption capacity was 185.94 mg/g. The presence of anions (H 2 PO 4 - , HCO 3 - and C l - ) decreased the adsorption efficiency of FeOOH@CG for As(V). The adsorption process of FeOOH@CG for As(V) could be well-described by the pseudo-second-order model and Langmuir model, indicating that the adsorption process mainly depended on chemical adsorption. The thermodynamic analysis suggested that the adsorption was a spontaneous and endothermic process. In addition, according to the analyses of XRD, FTIR and XPS, the dominant mechanisms of As(V) adsorption by FeOOH@CG were electrostatic attraction, complexation and precipitation. In conclusion, FeOOH@CG has great potential as an efficient and environmentally friendly adsorbent for As(V) adsorption from aqueous solution.
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Affiliation(s)
- Min Chen
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, People's Republic of China
- Taizhou Institute of Zhejiang University, Zhejiang University, Taizhou, People's Republic of China
| | - Yuan Sun
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, People's Republic of China
| | - Jingwei Niu
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, People's Republic of China
| | - Hai Zhou
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, People's Republic of China
| | - Yuzhi Zhou
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, People's Republic of China
- Anhui Engineering Laboratory for Comprehensive Utilization of Water and Soil Resources & Ecological Protection in Mining Area with High Groundwater Level, Huainan, People's Republic of China
| | - Xiaoyang Chen
- School of Earth and Environment, Anhui University of Science and Technology, Huainan, People's Republic of China
- Anhui Engineering Laboratory for Comprehensive Utilization of Water and Soil Resources & Ecological Protection in Mining Area with High Groundwater Level, Huainan, People's Republic of China
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13
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Cao L, Liu L, Zhang C, Ren W, Zheng J, Tao C, Zhu W, Xiang M, Wang L, Liu Y, Cao S, Zheng P. The MYC2 and MYB43 transcription factors cooperate to repress HMA2 and HMA4 expression, altering cadmium tolerance in Arabidopsis thaliana. JOURNAL OF HAZARDOUS MATERIALS 2024; 479:135703. [PMID: 39226685 DOI: 10.1016/j.jhazmat.2024.135703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 08/22/2024] [Accepted: 08/28/2024] [Indexed: 09/05/2024]
Abstract
Cadmium (Cd) represents a hazardous heavy metal, prevalent in agricultural soil due to industrial and agricultural expansion. Its propensity for being absorbed by edible plants, even at minimal concentrations, and subsequently transferred along the food chain poses significant risks to human health. Accordingly, it is imperative to investigate novel genes and mechanisms that govern Cd tolerance and detoxification in plants. Here, we discovered that the transcription factor MYC2 directly binds to the promoters of HMA2 and HMA4 to repress their expression, thereby altering the distribution of Cd in plant tissues and negatively regulating Cd stress tolerance. Additionally, molecular, biochemical, and genetic analyses revealed that MYC2 interacts and cooperates with MYB43 to negatively regulate the expression of HMA2 and HMA4 and Cd stress tolerance. Notably, under Cd stress conditions, MYC2 undergoes degradation, thereby alleviating its inhibitory effect on HMA2 and HMA4 expression and plant tolerance to Cd stress. Thus, our study highlights the dynamic regulatory role of MYC2, in concert with MYB43, in regulating the expression of HMA2 and HMA4 under both normal and Cd stress conditions. These findings present MYC2 as a promising target for directed breeding efforts aimed at mitigating Cd accumulation in edible plant roots.
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Affiliation(s)
- Lei Cao
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui 230009, China
| | - Linyao Liu
- School of Horticulture, Anhui Agricultural University, Hefei 230036, China
| | - Cheng Zhang
- School of Horticulture, Anhui Agricultural University, Hefei 230036, China
| | - Wangmei Ren
- School of Horticulture, Anhui Agricultural University, Hefei 230036, China
| | - Jiale Zheng
- School of Horticulture, Anhui Agricultural University, Hefei 230036, China
| | - Cheng Tao
- School of Horticulture, Anhui Agricultural University, Hefei 230036, China
| | - Wenyan Zhu
- School of Horticulture, Anhui Agricultural University, Hefei 230036, China
| | - Minghao Xiang
- School of Horticulture, Anhui Agricultural University, Hefei 230036, China
| | - Lihuan Wang
- School of Horticulture, Anhui Agricultural University, Hefei 230036, China
| | - Yongsheng Liu
- School of Horticulture, Anhui Agricultural University, Hefei 230036, China
| | - Shuqing Cao
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, Anhui 230009, China.
| | - Pengpeng Zheng
- School of Horticulture, Anhui Agricultural University, Hefei 230036, China.
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14
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Chen W, Zhang P, Liu D, Wang X, Lu S, Liu Z, Yang M, Deng T, Chen L, Qi H, Xiao S, Chen Q, Qiu R, Xie L. OsPLDα1 mediates cadmium stress response in rice by regulating reactive oxygen species accumulation and lipid remodeling. JOURNAL OF HAZARDOUS MATERIALS 2024; 479:135702. [PMID: 39217932 DOI: 10.1016/j.jhazmat.2024.135702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 08/19/2024] [Accepted: 08/28/2024] [Indexed: 09/04/2024]
Abstract
Lipid remodeling is crucial for various cellular activities and the stress tolerance of plants; however, little is known about the lipid dynamics induced by the heavy metal cadmium (Cd). In this study, we investigated the phospholipid profiles in rice (Oryza sativa) under Cd exposure. We observed a significant decline in the total amounts of phosphatidylcholine and phosphatidylserine, contrasted with an elevation in phosphatidic acid (PA) due to Cd stress. Additionally, Cd stress prompted the activation of phospholipase D (PLD) and induced the expression of PLDα1. OsPLDα1 knockout mutants (Ospldα1) showed increased sensitivity to Cd, characterized by a heightened accumulation of hydrogen peroxide in roots and diminished PA production following Cd treatment. Conversely, PLDα1-overexpressing (OsPLDα1-OE) lines demonstrated enhanced tolerance to Cd, with suppressed transcription of the respiratory burst oxidase homolog (Rboh) genes. The transcription levels of genes associated with Cd uptake and transport were accordingly modulated in Ospldα1 and OsPLDα1-OE plants relative to the wild-type. Taken together, our findings underscore the pivotal role of OsPLDα1 in conferring tolerance to Cd by modulating reactive oxygen species homeostasis and lipid remodeling in rice.
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Affiliation(s)
- Wenzhen Chen
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Peixian Zhang
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Di Liu
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Xiaozhuo Wang
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Sen Lu
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Zhixuan Liu
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Mingkang Yang
- College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Tenghaobo Deng
- Institute of Quality Standard and Monitoring Technology for Agro-products of Guangdong Academy of Agricultural Sciences, Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-products, Guangzhou 510640, China
| | - Liang Chen
- College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Hua Qi
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Shi Xiao
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China
| | - Qinfang Chen
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China.
| | - Rongliang Qiu
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
| | - Lijuan Xie
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
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15
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Lin XY, Ye TW, Duan X, Wang BX, Zhou D, Li HB. Cadmium in Market Pork Kidneys: A Study on Cadmium Bioavailability and the Health Effects Based on Mouse Models. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:14651-14661. [PMID: 39121354 DOI: 10.1021/acs.est.4c04801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/11/2024]
Abstract
Edible offal of farmed animals can accumulate cadmium (Cd). However, no studies have investigated Cd bioavailability and its health effects. Here, based on mouse models, market pork kidney samples exhibited high Cd relative bioavailability of 74.5 ± 11.2% (n = 26), close to 83.8 ± 7.80% in Cd-rice (n = 5). This was mainly due to high vitamin D3 content in pork kidney, causing 1.7-2.3-fold up-regulated expression of duodenal Ca transporter genes in mice fed pork kidney compared to mice fed Cd-rice, favoring Cd intestinal absorption via Ca transporters. However, although pork kidney was high in Cd bioavailability, subchronic low-dose (5% in diet) consumption of two pork kidney samples having 0.48 and 0.97 μg Cd g-1 dw over 35 d did not lead to significant Cd accumulation in the tissue of mice fed Cd-free rice but instead remarkably decreased Cd accumulation in the tissue of mice fed Cd-rice (0.48 μg Cd g-1) by ∼50% and increased abundance of gut probiotics (Faecalibaculum and Lactobacillus). Overall, this study contributed to our understanding of the bioavailability and health effects associated with Cd in edible offal, providing mechanistic insights into pork kidney consumption safety based on Cd bioavailability.
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Affiliation(s)
- Xin-Ying Lin
- State Key Laboratory of Pollution Control and Resource Reuse, Jiangsu Key Laboratory of Vehicle Emissions Control, School of Environment, Nanjing University, Nanjing 210023, China
| | - Tian-Wen Ye
- State Key Laboratory of Pollution Control and Resource Reuse, Jiangsu Key Laboratory of Vehicle Emissions Control, School of Environment, Nanjing University, Nanjing 210023, China
| | - Xu Duan
- State Key Laboratory of Pollution Control and Resource Reuse, Jiangsu Key Laboratory of Vehicle Emissions Control, School of Environment, Nanjing University, Nanjing 210023, China
| | - Bo-Xuan Wang
- International Department of Nanjing No. 13 Middle School, No. 14 Xijiadatang Road, Nanjing 210008, China
| | - Dongmei Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, Jiangsu Key Laboratory of Vehicle Emissions Control, School of Environment, Nanjing University, Nanjing 210023, China
| | - Hong-Bo Li
- State Key Laboratory of Pollution Control and Resource Reuse, Jiangsu Key Laboratory of Vehicle Emissions Control, School of Environment, Nanjing University, Nanjing 210023, China
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16
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Dai Z, Yu L, Ma P, Wang Y, An S, Liu M. Synergistic effects of silicon and goethite co-application in alleviating cadmium stress in rice (Oryza sativa L.): Insights into plant growth and iron plaque formation mechanisms. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 281:116570. [PMID: 38896902 DOI: 10.1016/j.ecoenv.2024.116570] [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: 01/17/2024] [Revised: 05/18/2024] [Accepted: 06/05/2024] [Indexed: 06/21/2024]
Abstract
Rice is one of the most important staple food crops; however, it is prone to cadmium (Cd) accumulation, which has negative health effects. Therefore, methods to reduce Cd uptake by rice are necessary. At present, there is limited research on the effects of co-application of silicon (Si) and goethite in mitigating Cd stress in rice. Furthermore, the specific mechanisms underlying the effects of their combined application on iron plaque formation in rice roots remain unclear. Therefore, this study analyzed the effects of the combined application of Si and goethite on the biomass, physiological stress indicators, Cd concentration, and iron plaques of rice using hydroponic experiments. The results revealed that co-treatment with both Si and goethite increased the plant height and dry weight, superoxide dismutase and catalase activities, photosynthetic pigment concentration, and root activity. Moreover, this treatment decreased the malondialdehyde concentration, repaired epidermal cells, reduced the Cd concentration in the roots by 57.2 %, and increased the number of iron plaques and Cd concentration by 150.9 % and 266.2 % in the amorphous and crystalline fractions, respectively. The Cd/Fe ratio in amorphous iron plaques also increased. Our findings suggest that goethite serves as a raw material for iron plaque formation, while Si enhances the oxidation capacity of rice roots. The application of a combination of Si and goethite increases the quantity and quality of iron plaques, enhancing its Cd fixation capacity. This study provides theoretical evidence for the effective inhibition of Cd uptake by iron plaques in rice, providing insights into methods for the remediation of Cd contamination.
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Affiliation(s)
- Zhaoyi Dai
- College of Land and Environment, Shenyang Agricultural University, Shenyang, Liaoning 110866, China
| | - Lei Yu
- College of Land and Environment, Shenyang Agricultural University, Shenyang, Liaoning 110866, China
| | - Pan Ma
- College of Land and Environment, Shenyang Agricultural University, Shenyang, Liaoning 110866, China
| | - Yaojing Wang
- College of Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, China
| | - Shuai An
- Shenyang Center of the China Geological Survey, Shenyang, Liaoning 110034, China
| | - Mingda Liu
- College of Land and Environment, Shenyang Agricultural University, Shenyang, Liaoning 110866, China.
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17
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Sui F, Yang Y, Wu Y, Yan J, Fu H, Li C, Qin S, Wang L, Zhang W, Gao W, Liu H, Zhao P. Cadmium Minimization in Grains of Maize and Wheat Grown on Smelting-Impacted Land Ameliorated by Limestone. TOXICS 2024; 12:532. [PMID: 39195634 PMCID: PMC11359027 DOI: 10.3390/toxics12080532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Revised: 07/12/2024] [Accepted: 07/15/2024] [Indexed: 08/29/2024]
Abstract
Cadmium (Cd) contamination in agricultural soils has emerged as a significant concern, particularly due to its potential impact on plant-based food. Soil pH reductions can exacerbate Cd mobility, leading to excessive accumulation in crops. While liming has been demonstrated as an effective method to mitigate Cd accumulation in rice grains in acid soils of southern China, its efficacy in remediating acid soils in northern China remains unclear. In this study, a multi-year field experiment was conducted on farmland impacted by zinc ore smelting at coordinates of 33.92° N 112.46° E to investigate the use of limestone for controlling Cd accumulation in wheat and maize grains. The results indicated that applying 7.5 t ha-1 of limestone significantly raised the soil pH from 4.5 to 6.8 as anticipated. Different rates of limestone application (2.25, 4.45, and 7.50 t ha-1) reduced Cd bioavailability in the soil by 20-54%, and Cd accumulation in wheat grains by 5-38% and maize grains by 21-63%, without yield penalty. The remediation effects were sustained for at least 27 months, highlighting limestone as a promising ameliorant for smelting-affected farmland in northern China.
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Affiliation(s)
- Fuqing Sui
- Key Laboratory of Soil Pollution Control and Remediation of Henan Province, College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; (F.S.); (Y.Y.); (Y.W.); (H.F.); (C.L.); (S.Q.); (L.W.); (W.Z.); (W.G.); (H.L.)
| | - Yanzheng Yang
- Key Laboratory of Soil Pollution Control and Remediation of Henan Province, College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; (F.S.); (Y.Y.); (Y.W.); (H.F.); (C.L.); (S.Q.); (L.W.); (W.Z.); (W.G.); (H.L.)
| | - Yong Wu
- Key Laboratory of Soil Pollution Control and Remediation of Henan Province, College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; (F.S.); (Y.Y.); (Y.W.); (H.F.); (C.L.); (S.Q.); (L.W.); (W.Z.); (W.G.); (H.L.)
| | - Jiali Yan
- College of Civil and Architecture Engineering, Chuzhou University, Chuzhou 239000, China
| | - Haichao Fu
- Key Laboratory of Soil Pollution Control and Remediation of Henan Province, College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; (F.S.); (Y.Y.); (Y.W.); (H.F.); (C.L.); (S.Q.); (L.W.); (W.Z.); (W.G.); (H.L.)
| | - Chang Li
- Key Laboratory of Soil Pollution Control and Remediation of Henan Province, College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; (F.S.); (Y.Y.); (Y.W.); (H.F.); (C.L.); (S.Q.); (L.W.); (W.Z.); (W.G.); (H.L.)
| | - Shiyu Qin
- Key Laboratory of Soil Pollution Control and Remediation of Henan Province, College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; (F.S.); (Y.Y.); (Y.W.); (H.F.); (C.L.); (S.Q.); (L.W.); (W.Z.); (W.G.); (H.L.)
| | - Long Wang
- Key Laboratory of Soil Pollution Control and Remediation of Henan Province, College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; (F.S.); (Y.Y.); (Y.W.); (H.F.); (C.L.); (S.Q.); (L.W.); (W.Z.); (W.G.); (H.L.)
| | - Wenwen Zhang
- Key Laboratory of Soil Pollution Control and Remediation of Henan Province, College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; (F.S.); (Y.Y.); (Y.W.); (H.F.); (C.L.); (S.Q.); (L.W.); (W.Z.); (W.G.); (H.L.)
| | - Wei Gao
- Key Laboratory of Soil Pollution Control and Remediation of Henan Province, College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; (F.S.); (Y.Y.); (Y.W.); (H.F.); (C.L.); (S.Q.); (L.W.); (W.Z.); (W.G.); (H.L.)
| | - Hongen Liu
- Key Laboratory of Soil Pollution Control and Remediation of Henan Province, College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; (F.S.); (Y.Y.); (Y.W.); (H.F.); (C.L.); (S.Q.); (L.W.); (W.Z.); (W.G.); (H.L.)
| | - Peng Zhao
- Key Laboratory of Soil Pollution Control and Remediation of Henan Province, College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; (F.S.); (Y.Y.); (Y.W.); (H.F.); (C.L.); (S.Q.); (L.W.); (W.Z.); (W.G.); (H.L.)
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18
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Hu J, Liu B, Xu X, Mao Z, Ye Z, Liu D, Fang X. Effects of soil moisture and an AC-electric field on the phytoremediation of the Cd-contaminated soil. ENVIRONMENTAL TECHNOLOGY 2024:1-11. [PMID: 39016246 DOI: 10.1080/09593330.2024.2368687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 06/08/2024] [Indexed: 07/18/2024]
Abstract
Phytoremediation enhanced by electric field has been considered a green and low-cost technology for remediating heavy metal-contaminated soils. Soil moisture is a main environmental factor that affects Cd availability in the soil. However, the effects of soil moisture and AC-electric field on the remediation efficiency of willow (Salix spp.) and S. Alfredii interplanted together remain unclear. In the present study, we designed four treatments (60% soil field capacity, 60% soil field capacity + 0.5 V·cm-1 AC, 100% soil field capacity, 100% soil field capacity + 0.5 V·cm-1 AC) to explore the impacts of soil moisture and AC-electric field on soil Cd availability and Cd accumulation in plants. The results showed that the application of an AC-electric field significantly increased soil Cd availability by 20.9% and 10.8% under both 60% and 100% soil field capacity, respectively. Both high water with and without AC-electric field treatments reduced the proportion of acid-extractable and reducible Cd of soil but increased the proportion of residual Cd. Compared with the control, an AC-electric field with 60% soil field capacity significantly enhanced the biomass of S. Alfredii shoots by 31.2% and increased Cd accumulation in willow leaves and S. Alfredii shoots by 14.6% and 32.3%, respectively. In addition, the biomass production of willow was significantly enhanced but the uptake of Cd by willow was dramatically decreased under an AC-electric field with high water treatment. Therefore, these results suggest that the AC-electric field combined with 60% soil field capacity may be a more promising remediation technique to clean up the Cd-contaminated soil.
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Affiliation(s)
- Juanxin Hu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, People's Republic of China
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A & F University, Hangzhou, People's Republic of China
| | - Bo Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, People's Republic of China
| | - Xiaolan Xu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, People's Republic of China
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A & F University, Hangzhou, People's Republic of China
| | - Zhansheng Mao
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, People's Republic of China
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A & F University, Hangzhou, People's Republic of China
| | - Zhengqian Ye
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, People's Republic of China
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A & F University, Hangzhou, People's Republic of China
| | - Dan Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, People's Republic of China
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A & F University, Hangzhou, People's Republic of China
| | - Xianzhi Fang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, People's Republic of China
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A & F University, Hangzhou, People's Republic of China
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19
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Jia H, Zhu Z, Zhan J, Luo Y, Yin Z, Wang Z, Yan X, Shao H, Song Z. NtARF11 positively regulates cadmium tolerance in tobacco by inhibiting expression of the nitrate transporter NtNRT1.1. JOURNAL OF HAZARDOUS MATERIALS 2024; 473:134719. [PMID: 38797073 DOI: 10.1016/j.jhazmat.2024.134719] [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: 03/26/2024] [Revised: 05/10/2024] [Accepted: 05/22/2024] [Indexed: 05/29/2024]
Abstract
Heavy metal cadmium (Cd) is widespread in contaminated soil and an important factor limiting plant growth. NO3- (nitrate) affects Cd uptake and thus changes Cd tolerance in plants; however, the underlying molecular regulatory mechanisms have not yet been elucidated. Here, we analyzed a novel gene, NtARF11 (auxin response factor), which regulates Cd tolerance in tobacco via the NO3- uptake pathway, through experiments with NtARF11-knockout and NtARF11-overexpression transgenic tobacco lines. NtARF11 was highly expressed under Cd stress in tobacco plants. Under Cd stress, overexpression of NtARF11 enhanced Cd tolerance in tobacco compared to that in wild-type tobacco, as shown by the low Cd concentration, high chlorophyll concentration, and low accumulation of reactive oxygen species in NtARF11-overexpressing tobacco. Moreover, low NO3- concentrations were observed in NtARF11-overexpressing tobacco plants. Further analyses revealed direct binding of NtARF11 to the promoter of the nitrate transporter NtNRT1.1, thereby negatively regulating its expression in tobacco. Notably, NtNRT1.1 knockout reduced NO3- uptake, which resulted in low Cd concentrations in tobacco. Altogether, these results demonstrate that the NtARF11-NtNRT1.1 module functions as a positive regulator of Cd tolerance by reducing the Cd uptake in tobacco, providing new insights for improving Cd tolerance of plants through genetic engineering.
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Affiliation(s)
- Hongfang Jia
- State Key Laboratory of Tobacco Cultivation, College of tobacco Science, Henan Agricultural University, Zhengzhou 450002, China.
| | - Zitong Zhu
- State Key Laboratory of Tobacco Cultivation, College of tobacco Science, Henan Agricultural University, Zhengzhou 450002, China
| | - Jiawei Zhan
- State Key Laboratory of Tobacco Cultivation, College of tobacco Science, Henan Agricultural University, Zhengzhou 450002, China
| | - Yong Luo
- State Key Laboratory of Tobacco Cultivation, College of tobacco Science, Henan Agricultural University, Zhengzhou 450002, China; State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Zhuoran Yin
- State Key Laboratory of Tobacco Cultivation, College of tobacco Science, Henan Agricultural University, Zhengzhou 450002, China
| | - Zhaojun Wang
- State Key Laboratory of Tobacco Cultivation, College of tobacco Science, Henan Agricultural University, Zhengzhou 450002, China
| | - Xiaoxiao Yan
- State Key Laboratory of Tobacco Cultivation, College of tobacco Science, Henan Agricultural University, Zhengzhou 450002, China
| | - Huifang Shao
- State Key Laboratory of Tobacco Cultivation, College of tobacco Science, Henan Agricultural University, Zhengzhou 450002, China.
| | - Zhaopeng Song
- State Key Laboratory of Tobacco Cultivation, College of tobacco Science, Henan Agricultural University, Zhengzhou 450002, China.
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20
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Li Y, He Z, Xu J, Jiang S, Han X, Wu L, Zhuo R, Qiu W. SpSIZ1 from hyperaccumulator Sedum plumbizincicola orchestrates SpABI5 to fine-tune cadmium tolerance. FRONTIERS IN PLANT SCIENCE 2024; 15:1382121. [PMID: 39045590 PMCID: PMC11264288 DOI: 10.3389/fpls.2024.1382121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 06/24/2024] [Indexed: 07/25/2024]
Abstract
Sedum plumbizincicola is a renowned hyperaccumulator of cadmium (Cd), possesses significant potential for eco-friendly phytoremediation of soil contaminated with Cd. Nevertheless, comprehension of the mechanisms underpinning its Cd stress response remains constrained, primarily due to the absence of a comprehensive genome sequence and an established genetic transformation system. In this study, we successfully identified a novel protein that specifically responds to Cd stress through early comparative iTRAQ proteome and transcriptome analyses under Cd stress conditions. To further investigate its structure, we employed AlphaFold, a powerful tool for protein structure prediction, and found that this newly identified protein shares a similar structure with Arabidopsis AtSIZ1. Therefore, we named it Sedum plumbizincicola SIZ1 (SpSIZ1). Our study revealed that SpSIZ1 plays a crucial role in positively regulating Cd tolerance through its coordination with SpABI5. Overexpression of SpSIZ1 significantly enhanced plant resistance to Cd stress and reduced Cd accumulation. Expression pattern analysis revealed higher levels of SpSIZ1 expression in roots compared to stems and leaves, with up-regulation under Cd stress induction. Importantly, overexpressing SpSIZ1 resulted in lower Cd translocation factors (Tfs) but maintained relatively constant Cd levels in roots under Cd stress, leading to enhanced Cd stress resistance in plants. Protein interaction analysis revealed that SpSIZ1 interacts with SpABI5, and the expression of genes responsive to abscisic acid (ABA) through SpABI5-dependent signaling was significantly up-regulated in SpSIZ1-overexpressing plants with Cd stress treatment. Collectively, our results illustrate that SpSIZ1 interacts with SpABI5, enhancing the expression of ABA downstream stress-related genes through SpABI5, thereby increasing Cd tolerance in plants.
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Affiliation(s)
- Yuhong Li
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
- Faculty of Forestry, Nanjing Forestry University, Nanjing, China
| | - Zhengquan He
- Key Laboratory of Three Gorges Regional Plant Genetic & Germplasm Enhancement (CTGU)/Biotechnology Research Center, China Three Gorges University, Yichang, China
| | - Jing Xu
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
| | - Shenyue Jiang
- Meicheng Office of Market Supervision Bureau of Jiande City, Jiande, Zhejiang, China
| | - Xiaojiao Han
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
| | - Longhua Wu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China
| | - Renying Zhuo
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
| | - Wenmin Qiu
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding of Zhejiang Province, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
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21
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Yang Z, Wang J, Wang W, Zhang H, Wu Y, Gao X, Gao D, Li X. Physiological, cytological and multi-omics analysis revealed the molecular response of Fritillaria cirrhosa to Cd toxicity in Qinghai-Tibet Plateau. JOURNAL OF HAZARDOUS MATERIALS 2024; 472:134611. [PMID: 38754230 DOI: 10.1016/j.jhazmat.2024.134611] [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: 03/12/2024] [Revised: 05/05/2024] [Accepted: 05/11/2024] [Indexed: 05/18/2024]
Abstract
Fritillaria cirrhosa, an endangered plant endemic to plateau regions, faces escalating cadmium (Cd) stress due to pollution in the Qinghai-Tibet Plateau. This study employed physiological, cytological, and multi-omics techniques to investigate the toxic effects of Cd stress and detoxification mechanisms of F. cirrhosa. The results demonstrated that Cd caused severe damage to cell membranes and organelles, leading to significant oxidative damage and reducing photosynthesis, alkaloid and nucleoside contents, and biomass. Cd application increased cell wall thickness by 167.89% in leaves and 445.78% in bulbs, leading to weight percentage of Cd increases of 76.00% and 257.14%, respectively. PER, CESA, PME, and SUS, genes responsible for cell wall thickening, were significantly upregulated. Additionally, the levels of metabolites participating in the scavenging of reactive oxygen species, including oxidized glutathione, D-proline, L-citrulline, and putrescine, were significantly increased under Cd stress. Combined multi-omics analyses revealed that glutathione metabolism and cell wall biosynthesis pathways jointly constituted the detoxification mechanism of F. cirrhosa in response to Cd stress. This study provides a theoretical basis for further screening of new cultivars for Cd tolerance and developing appropriate cultivation strategies to alleviate Cd toxicity.
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Affiliation(s)
- Zemin Yang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; College of Traditional Chinese Medicine, Yunnan University of Chinese Medicine, Kunming 650500, China.
| | - Jialu Wang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Wenjun Wang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; College of Traditional Chinese Medicine, Yunnan University of Chinese Medicine, Kunming 650500, China.
| | - Haobo Zhang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China.
| | - Yuhan Wu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China.
| | - Xusheng Gao
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China.
| | - Dan Gao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Xiwen Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
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22
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Liang B, Ye Q, Shi Z. Stable isotopic signature of cadmium in tracing the source, fate, and translocation of cadmium in soil: A review. JOURNAL OF HAZARDOUS MATERIALS 2024; 472:134531. [PMID: 38728863 DOI: 10.1016/j.jhazmat.2024.134531] [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: 02/08/2024] [Revised: 04/25/2024] [Accepted: 05/02/2024] [Indexed: 05/12/2024]
Abstract
Cadmium (Cd), one of the most severe environmental pollutants in soil, poses a great threat to food safety and human health. Understanding the potential sources, fate, and translocation of Cd in soil-plant systems can provide valuable information on Cd contamination and its environmental impacts. Stable Cd isotopic ratios (δ114/110Cd) can provide "fingerprint" information on the sources and fate of Cd in the soil environment. Here, we review the application of Cd isotopes in soil, including (i) the Cd isotopic signature of soil and anthropogenic sources, (ii) the interactions of Cd with soil constituents and associated Cd isotopic fractionation, and (iii) the translocation of Cd at soil-plant interfaces and inside plant bodies, which aims to provide an in-depth understanding of Cd transport and migration in soil and soil-plant systems. This review would help to improve the understanding and application of Cd isotopic techniques for tracing the potential sources and (bio-)geochemical cycling of Cd in soil environment.
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Affiliation(s)
- Bin Liang
- School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, People's Republic of China
| | - Qianting Ye
- School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, People's Republic of China
| | - Zhenqing Shi
- School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, People's Republic of China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong 510006, People's Republic of China.
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23
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Zhao J, Cao C, Chen X, Zhang W, Ma T, Irfan M, Zheng L. Source-specific ecological risk analysis and critical source identification of heavy metal(loid)s in the soil of typical abandoned coal mining area. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 947:174506. [PMID: 38971251 DOI: 10.1016/j.scitotenv.2024.174506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 06/13/2024] [Accepted: 07/03/2024] [Indexed: 07/08/2024]
Abstract
Long-term coal mining activities in abandoned coal mining areas have resulted in the migration of large quantities of heavy metals into the surrounding soil environment, posing a threat to the regional ecological environment. This study focuses on the surface soil collected from a typical abandoned coal mining area. Methods such as the pollution index (PI) and potential ecological risk index (RI) were used to comprehensively evaluate the pollution levels and ecological risks of soil heavy metals. Geostatistical analysis and the APCS-MLR model were used to quantify the sources of soil heavy metals, and Nemerow integrated ecological risk (NIRI) model was coupled to apportion the ecological risks from different pollution sources. The results indicate that the average concentrations of Cd, As, and Zn are 4.58, 2.44, and 1.67 times the soil background values, respectively, while the concentrations of other heavy metals are below the soil background values. The soil of study area is strongly polluted by heavy metals, with the pollution level and ecological risk of Cd being significantly higher than those of other heavy metals. The NIRI calculation results show that the overall comprehensive ecological risk level is considerable, with sample points classified as relatively considerable, moderate, and low at 60.53 %, 36.84 %, and 2.63 %, respectively. The sources of soil heavy metals can be categorized into four types: traffic activities, natural sources, coal gangue accumulation, and a combined source of coal mining and agricultural activities, with contribution rates of 35.3 %, 36.1 %, 19.5 %, and 9.1 %, respectively. The specific source ecological risk assessment results indicate that coal gangue accumulation contributes the most to ecological risk (36.4 %) and should be prioritized for pollution control, with Cd being the priority control element for ecological risk. The findings provide theoretical support for the refined management of soil heavy metal pollution in abandoned coal mining areas.
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Affiliation(s)
- Jiyang Zhao
- School of Resources and Environmental Engineering, Anhui University, Anhui Province Engineering Laboratory for Mine Ecological Remediation, Hefei 230601, China
| | - Chengying Cao
- School of Resources and Environmental Engineering, Anhui University, Anhui Province Engineering Laboratory for Mine Ecological Remediation, Hefei 230601, China
| | - Xing Chen
- School of Environment and Energy, Anhui Jianzhu University, Hefei 230093, China
| | - Wanyu Zhang
- School of Resources and Environmental Engineering, Anhui University, Anhui Province Engineering Laboratory for Mine Ecological Remediation, Hefei 230601, China
| | - Tianqi Ma
- School of Resources and Environmental Engineering, Anhui University, Anhui Province Engineering Laboratory for Mine Ecological Remediation, Hefei 230601, China
| | - Muhammad Irfan
- School of Resources and Environmental Engineering, Anhui University, Anhui Province Engineering Laboratory for Mine Ecological Remediation, Hefei 230601, China
| | - Liugen Zheng
- School of Resources and Environmental Engineering, Anhui University, Anhui Province Engineering Laboratory for Mine Ecological Remediation, Hefei 230601, China.
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24
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Godebo TR, Stoner H, Kodsup P, Bases B, Marzoni S, Weil J, Frey M, Daley P, Earnhart A, Ellias G, Friedman T, Rajan S, Murphy N, Miller S. Occurrence of heavy metals coupled with elevated levels of essential elements in chocolates: Health risk assessment. Food Res Int 2024; 187:114360. [PMID: 38763644 DOI: 10.1016/j.foodres.2024.114360] [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: 12/28/2023] [Revised: 04/01/2024] [Accepted: 04/17/2024] [Indexed: 05/21/2024]
Abstract
The presence of contaminants in cacao-derived products, especially in chocolates, has raised concerns regarding food safety and human health. The study assessed the concentration variation of 16 elements in 155 chocolate samples from the US market by cacao content and country of geographic origin. The study further examined the potential health risks posed by toxic metals and determined the contribution of essential elements to the Daily Recommended Intake (DRI), estimated based on an ounce (∼28.4 g) of daily chocolate consumption. Dark chocolates with ≥50 % cacao exhibited consecutively increasing mean levels from 1.2 to 391 µg/kg for U, Tl, Th, As, Pb, Se, Cd, and Co. Similarly, Ni, Sr, Cu, Mn, Zn, Fe, Ca, and Mg had mean concentrations from 4.0 to 1890 mg/kg. Dark chocolates sourced from Central and South America exhibited the highest mean levels of Cd, and South America samples also contained elevated Pb, whereas those from West Africa and Asia had low Cd and Pb, respectively. Cacao contents showed increasingly strong association with Cd, Co, Mn, Sr, Ni, Cu, Zn, and Mg (r = 0.60-0.84), and moderately with Se, Fe, As, and Tl (r = 0.35-0.49), indicating these elements are primarily derived from cacao beans. Weak association of cacao contents with Pb, Th, and U levels (r < 0.25), indicates post-harvest contaminations. Hazard Quotient (HQ) > 1 was found only for Cd in 4 dark chocolates, and Hazard Index (HI) > 1 for cumulative risk of Cd, Pb, Ni, As, and U was found in 33 dark chocolates, indicating potential non-carcinogenic risks for 15 kg children but none for 70 kg adults. Dark chocolate also substantially contributed to 47-95 % of the DRI of Cu for children and 50 % for adults. Dark chocolates also provided notable Fe, Mn, Mg, and Zn contributions to the DRI. These essential elements are recognized to reduce the bioavailability of toxic metals such as Cd, Pb, or Ni, thereby potentially lowering associated health risks. This study informs consumers, food industries, and regulatory agencies to target cacao origins or chocolate brands with lower toxic metal contents for food safety and minimizing adverse health effects.
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Affiliation(s)
- Tewodros Rango Godebo
- Department of Environmental Health Sciences, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA 70112, USA.
| | - Hannah Stoner
- Department of Environmental Health Sciences, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA 70112, USA
| | - Pornpimol Kodsup
- Department of Environmental Health Sciences, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA 70112, USA
| | - Benjamin Bases
- Department of Environmental Health Sciences, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA 70112, USA
| | - Sophia Marzoni
- Department of Environmental Health Sciences, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA 70112, USA
| | - Jenna Weil
- Department of Environmental Health Sciences, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA 70112, USA
| | - Matt Frey
- Department of Environmental Health Sciences, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA 70112, USA
| | - Preston Daley
- Department of Environmental Health Sciences, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA 70112, USA
| | - Alexa Earnhart
- Department of Environmental Health Sciences, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA 70112, USA
| | - Gabe Ellias
- Department of Environmental Health Sciences, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA 70112, USA
| | - Talia Friedman
- Department of Environmental Health Sciences, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA 70112, USA
| | - Satwik Rajan
- Department of Environmental Health Sciences, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA 70112, USA
| | - Ned Murphy
- Department of Environmental Health Sciences, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA 70112, USA
| | - Sydney Miller
- Department Environmental Studies, School of Liberal Arts, Tulane University, New Orleans, LA 70118, USA
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25
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Wei X, Geng M, Yuan J, Zhan J, Liu L, Chen Y, Wang Y, Qin W, Duan H, Zhao H, Li F, Ge X. GhRCD1 promotes cotton tolerance to cadmium by regulating the GhbHLH12-GhMYB44-GhHMA1 transcriptional cascade. PLANT BIOTECHNOLOGY JOURNAL 2024; 22:1777-1796. [PMID: 38348566 PMCID: PMC11182589 DOI: 10.1111/pbi.14301] [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: 10/01/2023] [Revised: 01/10/2024] [Accepted: 01/16/2024] [Indexed: 06/19/2024]
Abstract
Heavy metal pollution poses a significant risk to human health and wreaks havoc on agricultural productivity. Phytoremediation, a plant-based, environmentally benign, and cost-effective method, is employed to remove heavy metals from contaminated soil, particularly in agricultural or heavy metal-sensitive lands. However, the phytoremediation capacity of various plant species and germplasm resources display significant genetic diversity, and the mechanisms underlying these differences remain hitherto obscure. Given its potential benefits, genetic improvement of plants is essential for enhancing their uptake of heavy metals, tolerance to harmful levels, as well as overall growth and development in contaminated soil. In this study, we uncover a molecular cascade that regulates cadmium (Cd2+) tolerance in cotton, involving GhRCD1, GhbHLH12, GhMYB44, and GhHMA1. We identified a Cd2+-sensitive cotton T-DNA insertion mutant with disrupted GhRCD1 expression. Genetic knockout of GhRCD1 by CRISPR/Cas9 technology resulted in reduced Cd2+ tolerance in cotton seedlings, while GhRCD1 overexpression enhanced Cd2+ tolerance. Through molecular interaction studies, we demonstrated that, in response to Cd2+ presence, GhRCD1 directly interacts with GhbHLH12. This interaction activates GhMYB44, which subsequently activates a heavy metal transporter, GhHMA1, by directly binding to a G-box cis-element in its promoter. These findings provide critical insights into a novel GhRCD1-GhbHLH12-GhMYB44-GhHMA1 regulatory module responsible for Cd2+ tolerance in cotton. Furthermore, our study paves the way for the development of elite Cd2+-tolerant cultivars by elucidating the molecular mechanisms governing the genetic control of Cd2+ tolerance in cotton.
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Affiliation(s)
- Xi Wei
- Research Base of State Key Laboratory of Cotton BiologyHenan Normal UniversityXinxiangChina
- State Key Laboratory of Cotton BiologyInstitute of Cotton Research, Chinese Academy of Agricultural SciencesAnyangChina
| | - Menghan Geng
- Research Base of State Key Laboratory of Cotton BiologyHenan Normal UniversityXinxiangChina
- State Key Laboratory of Cotton BiologyInstitute of Cotton Research, Chinese Academy of Agricultural SciencesAnyangChina
| | - Jiachen Yuan
- Zhengzhou Research Base, State Key Laboratory of Cotton BiologyZhengzhou UniversityZhengzhouChina
| | - Jingjing Zhan
- State Key Laboratory of Cotton BiologyInstitute of Cotton Research, Chinese Academy of Agricultural SciencesAnyangChina
| | - Lisen Liu
- State Key Laboratory of Cotton BiologyInstitute of Cotton Research, Chinese Academy of Agricultural SciencesAnyangChina
| | - Yanli Chen
- State Key Laboratory of Cotton BiologyInstitute of Cotton Research, Chinese Academy of Agricultural SciencesAnyangChina
| | - Ye Wang
- State Key Laboratory of Cotton BiologyInstitute of Cotton Research, Chinese Academy of Agricultural SciencesAnyangChina
| | - Wenqiang Qin
- State Key Laboratory of Cotton BiologyInstitute of Cotton Research, Chinese Academy of Agricultural SciencesAnyangChina
| | - Hongying Duan
- Research Base of State Key Laboratory of Cotton BiologyHenan Normal UniversityXinxiangChina
| | - Hang Zhao
- State Key Laboratory of Cotton BiologyInstitute of Cotton Research, Chinese Academy of Agricultural SciencesAnyangChina
- Zhengzhou Research Base, State Key Laboratory of Cotton BiologyZhengzhou UniversityZhengzhouChina
- College of Life SciencesQufu Normal UniversityQufuChina
| | - Fuguang Li
- Research Base of State Key Laboratory of Cotton BiologyHenan Normal UniversityXinxiangChina
- State Key Laboratory of Cotton BiologyInstitute of Cotton Research, Chinese Academy of Agricultural SciencesAnyangChina
- Zhengzhou Research Base, State Key Laboratory of Cotton BiologyZhengzhou UniversityZhengzhouChina
- Western Agricultural Research Center, Chinese Academy of Agricultural SciencesChangjiXinjiangChina
| | - Xiaoyang Ge
- Research Base of State Key Laboratory of Cotton BiologyHenan Normal UniversityXinxiangChina
- State Key Laboratory of Cotton BiologyInstitute of Cotton Research, Chinese Academy of Agricultural SciencesAnyangChina
- Zhengzhou Research Base, State Key Laboratory of Cotton BiologyZhengzhou UniversityZhengzhouChina
- Western Agricultural Research Center, Chinese Academy of Agricultural SciencesChangjiXinjiangChina
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26
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Umair Hassan M, Huang G, Haider FU, Khan TA, Noor MA, Luo F, Zhou Q, Yang B, Ul Haq MI, Iqbal MM. Application of Zinc Oxide Nanoparticles to Mitigate Cadmium Toxicity: Mechanisms and Future Prospects. PLANTS (BASEL, SWITZERLAND) 2024; 13:1706. [PMID: 38931138 PMCID: PMC11207998 DOI: 10.3390/plants13121706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 06/12/2024] [Accepted: 06/13/2024] [Indexed: 06/28/2024]
Abstract
Cadmium (Cd), as the most prevalent heavy metal contaminant poses serious risks to plants, humans, and the environment. The ubiquity of this toxic metal is continuously increasing due to the rapid discharge of industrial and mining effluents and the excessive use of chemical fertilizers. Nanoparticles (NPs) have emerged as a novel strategy to alleviate Cd toxicity. Zinc oxide nanoparticles (ZnO-NPs) have become the most important NPs used to mitigate the toxicity of abiotic stresses and improve crop productivity. The plants quickly absorb Cd, which subsequently disrupts plant physiological and biochemical processes and increases the production of reactive oxygen species (ROS), which causes the oxidation of cellular structures and significant growth losses. Besides this, Cd toxicity also disrupts leaf osmotic pressure, nutrient uptake, membrane stability, chlorophyll synthesis, and enzyme activities, leading to a serious reduction in growth and biomass productivity. Though plants possess an excellent defense mechanism to counteract Cd toxicity, this is not enough to counter higher concentrations of Cd toxicity. Applying Zn-NPs has proven to have significant potential in mitigating the toxic effects of Cd. ZnO-NPs improve chlorophyll synthesis, photosynthetic efficiency, membrane stability, nutrient uptake, and gene expression, which can help to counter toxic effects of Cd stress. Additionally, ZnO-NPs also help to reduce Cd absorption and accumulation in plants, and the complex relationship between ZnO-NPs, osmolytes, hormones, and secondary metabolites plays an important role in Cd tolerance. Thus, this review concentrates on exploring the diverse mechanisms by which ZnO nanoparticles can alleviate Cd toxicity in plants. In the end, this review has identified various research gaps that need addressing to ensure the promising future of ZnO-NPs in mitigating Cd toxicity. The findings of this review contribute to gaining a deeper understanding of the role of ZnO-NPs in combating Cd toxicity to promote safer and sustainable crop production by remediating Cd-polluted soils. This also allows for the development of eco-friendly approaches to remediate Cd-polluted soils to improve soil fertility and environmental quality.
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Affiliation(s)
- Muhammad Umair Hassan
- Research Center on Ecological Sciences, Jiangxi Agricultural University, Nanchang 330045, China; (M.U.H.); (T.A.K.); (M.A.N.); (F.L.); (Q.Z.); (B.Y.)
| | - Guoqin Huang
- Research Center on Ecological Sciences, Jiangxi Agricultural University, Nanchang 330045, China; (M.U.H.); (T.A.K.); (M.A.N.); (F.L.); (Q.Z.); (B.Y.)
| | | | - Tahir Abbas Khan
- Research Center on Ecological Sciences, Jiangxi Agricultural University, Nanchang 330045, China; (M.U.H.); (T.A.K.); (M.A.N.); (F.L.); (Q.Z.); (B.Y.)
| | - Mehmood Ali Noor
- Research Center on Ecological Sciences, Jiangxi Agricultural University, Nanchang 330045, China; (M.U.H.); (T.A.K.); (M.A.N.); (F.L.); (Q.Z.); (B.Y.)
| | - Fang Luo
- Research Center on Ecological Sciences, Jiangxi Agricultural University, Nanchang 330045, China; (M.U.H.); (T.A.K.); (M.A.N.); (F.L.); (Q.Z.); (B.Y.)
| | - Quan Zhou
- Research Center on Ecological Sciences, Jiangxi Agricultural University, Nanchang 330045, China; (M.U.H.); (T.A.K.); (M.A.N.); (F.L.); (Q.Z.); (B.Y.)
| | - Binjuan Yang
- Research Center on Ecological Sciences, Jiangxi Agricultural University, Nanchang 330045, China; (M.U.H.); (T.A.K.); (M.A.N.); (F.L.); (Q.Z.); (B.Y.)
| | | | - Muhammad Mahmood Iqbal
- Agronomy (Forage Production) Section, Ayub Agricultural Research Institute, Faisalabad 38040, Pakistan;
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Gao C, Lan Y, Zhan Y, Li Y, Jiang J, Li Y, Zhang L, Fan X. Preparation of porous biochar from fusarium wilt-infected banana straw for remediation of cadmium pollution in water bodies. Sci Rep 2024; 14:13821. [PMID: 38879683 PMCID: PMC11180127 DOI: 10.1038/s41598-024-63954-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Accepted: 06/04/2024] [Indexed: 06/19/2024] Open
Abstract
The problem of cadmium pollution and its control is becoming increasingly severe issue in the world. Banana straw is an abundant bio raw material, but its burning or discarding in field not only causes pollution but also spreads fusarium wilt. The objective of this paper is to utilize biochar derived from the wilt-infected banana straw for remediation of Cd(II) pollution while to eliminate the pathogen. The activity of wilt pathogen in biochar was determined by PDA petri dish test. The Cd(II) adsorption of the biochar was determined by batch adsorption experiments. The effects of KOH concentration (0.25, 0.5 and 0.75 M) on the physicochemical characteristics of the biochar were also observed by BET, SEM, FTIR, XRD and XPS. Results showed that pristine banana straw biochar (PBBC) did not harbor any pathogen. The specific surface area (SSA) and Cd(II) adsorption capacity of 0.75 M KOH modified banana straw biochar (MBBC0.75M) were increased by 247.2% and 46.1% compared to that of PBBC, respectively. Cd(II) adsorption by MBBC0.75M was suitable to be described by the pseudo-second-order kinetic model and Freundlich isotherm. After Cd(II) adsorption, the CdCO3 were confirmed by XRD and observed through SEM. The weakness and shift of oxygen-containing functional groups in MBBC0.75M after Cd(II) adsorption implied that those groups were complexed with Cd(II). The results showed that pyrolysis could not only eliminate banana fusarium wilt, but also prepare porous biochar with the wilt-infected banana straw. The porous biochar possessed the potential to adsorb Cd(II) pollutants.
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Affiliation(s)
- Chengxiang Gao
- Guangdong Engineering Technology Research Center of Low Carbon Agricultural Green Inputs, South China Agricultural University, Guangzhou City, 510642, China
- R&D Center of Environmental Friendly Fertilizer Science and Technology of Education Department of Guangdong Province, College of Natural Resources and Environment, South China Agricultural University, Guangzhou City, 510642, China
| | - Yi Lan
- Guangdong Engineering Technology Research Center of Low Carbon Agricultural Green Inputs, South China Agricultural University, Guangzhou City, 510642, China
- R&D Center of Environmental Friendly Fertilizer Science and Technology of Education Department of Guangdong Province, College of Natural Resources and Environment, South China Agricultural University, Guangzhou City, 510642, China
| | - Yaowei Zhan
- Guangdong Engineering Technology Research Center of Low Carbon Agricultural Green Inputs, South China Agricultural University, Guangzhou City, 510642, China
- R&D Center of Environmental Friendly Fertilizer Science and Technology of Education Department of Guangdong Province, College of Natural Resources and Environment, South China Agricultural University, Guangzhou City, 510642, China
| | - Yuechen Li
- Guangdong Engineering Technology Research Center of Low Carbon Agricultural Green Inputs, South China Agricultural University, Guangzhou City, 510642, China
- R&D Center of Environmental Friendly Fertilizer Science and Technology of Education Department of Guangdong Province, College of Natural Resources and Environment, South China Agricultural University, Guangzhou City, 510642, China
| | - Jiaquan Jiang
- Guangdong Engineering Technology Research Center of Low Carbon Agricultural Green Inputs, South China Agricultural University, Guangzhou City, 510642, China
- R&D Center of Environmental Friendly Fertilizer Science and Technology of Education Department of Guangdong Province, College of Natural Resources and Environment, South China Agricultural University, Guangzhou City, 510642, China
| | - Yuanqiong Li
- Guangdong Engineering Technology Research Center of Low Carbon Agricultural Green Inputs, South China Agricultural University, Guangzhou City, 510642, China
- R&D Center of Environmental Friendly Fertilizer Science and Technology of Education Department of Guangdong Province, College of Natural Resources and Environment, South China Agricultural University, Guangzhou City, 510642, China
| | - Lidan Zhang
- Guangdong Engineering Technology Research Center of Low Carbon Agricultural Green Inputs, South China Agricultural University, Guangzhou City, 510642, China.
- R&D Center of Environmental Friendly Fertilizer Science and Technology of Education Department of Guangdong Province, College of Natural Resources and Environment, South China Agricultural University, Guangzhou City, 510642, China.
| | - Xiaolin Fan
- Guangdong Engineering Technology Research Center of Low Carbon Agricultural Green Inputs, South China Agricultural University, Guangzhou City, 510642, China.
- R&D Center of Environmental Friendly Fertilizer Science and Technology of Education Department of Guangdong Province, College of Natural Resources and Environment, South China Agricultural University, Guangzhou City, 510642, China.
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Vitelli V, Giamborino A, Bertolini A, Saba A, Andreucci A. Cadmium Stress Signaling Pathways in Plants: Molecular Responses and Mechanisms. Curr Issues Mol Biol 2024; 46:6052-6068. [PMID: 38921032 PMCID: PMC11202648 DOI: 10.3390/cimb46060361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 06/06/2024] [Accepted: 06/10/2024] [Indexed: 06/27/2024] Open
Abstract
Heavy metal (HM) pollution, specifically cadmium (Cd) contamination, is a worldwide concern for its consequences for plant health and ecosystem stability. This review sheds light on the intricate mechanisms underlying Cd toxicity in plants and the various strategies employed by these organisms to mitigate its adverse effects. From molecular responses to physiological adaptations, plants have evolved sophisticated defense mechanisms to counteract Cd stress. We highlighted the role of phytochelatins (PCn) in plant detoxification, which chelate and sequester Cd ions to prevent their accumulation and minimize toxicity. Additionally, we explored the involvement of glutathione (GSH) in mitigating oxidative damage caused by Cd exposure and discussed the regulatory mechanisms governing GSH biosynthesis. We highlighted the role of transporter proteins, such as ATP-binding cassette transporters (ABCs) and heavy metal ATPases (HMAs), in mediating the uptake, sequestration, and detoxification of Cd in plants. Overall, this work offered valuable insights into the physiological, molecular, and biochemical mechanisms underlying plant responses to Cd stress, providing a basis for strategies to alleviate the unfavorable effects of HM pollution on plant health and ecosystem resilience.
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Affiliation(s)
- Valentina Vitelli
- Department of Biology, University of Pisa, 56126 Pisa, Italy;
- Department of Surgical, Medical and Molecular Pathology and Critical Care Area, University of Pisa, 56126 Pisa, Italy; (A.G.); (A.B.); (A.S.)
| | - Agnese Giamborino
- Department of Surgical, Medical and Molecular Pathology and Critical Care Area, University of Pisa, 56126 Pisa, Italy; (A.G.); (A.B.); (A.S.)
| | - Andrea Bertolini
- Department of Surgical, Medical and Molecular Pathology and Critical Care Area, University of Pisa, 56126 Pisa, Italy; (A.G.); (A.B.); (A.S.)
| | - Alessandro Saba
- Department of Surgical, Medical and Molecular Pathology and Critical Care Area, University of Pisa, 56126 Pisa, Italy; (A.G.); (A.B.); (A.S.)
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Li MZ, Hu DW, Liu XQ, Zhang R, Liu H, Tang Z, Zhao FJ, Huang XY. The OsZIP2 transporter is involved in root-to-shoot translocation and intervascular transfer of cadmium in rice. PLANT, CELL & ENVIRONMENT 2024. [PMID: 38828861 DOI: 10.1111/pce.14993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 05/09/2024] [Accepted: 05/23/2024] [Indexed: 06/05/2024]
Abstract
Cadmium (Cd) is a toxic metal that poses serious threats to human health. Rice is a major source of dietary Cd but how rice plants transport Cd to the grain is not fully understood. Here, we characterize the function of the ZIP (ZRT, IRT-like protein) family protein, OsZIP2, in the root-to-shoot translocation of Cd and intervascular transfer of Cd in nodes. OsZIP2 is localized at the plasma membrane and exhibited Cd2+ transport activity when heterologously expressed in yeast. OsZIP2 is strongly expressed in xylem parenchyma cells in roots and in enlarged vascular bundles in nodes. Knockout of OsZIP2 significantly enhanced root-to-shoot translocation of Cd and alleviated the inhibition of root elongation by excess Cd stress; whereas overexpression of OsZIP2 decreased Cd translocation to shoots and resulted in Cd sensitivity. Knockout of OsZIP2 increased Cd allocation to the flag leaf but decreased Cd allocation to the panicle and grain. We further reveal that the variation of OsZIP2 expression level contributes to grain Cd concentration among rice germplasms. Our results demonstrate that OsZIP2 functions in root-to-shoot translocation of Cd in roots and intervascular transfer of Cd in nodes, which can be used for breeding low Cd rice varieties.
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Affiliation(s)
- Meng-Zhen Li
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - Da-Wei Hu
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - Xiang-Qian Liu
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - Rui Zhang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - Huan Liu
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - Zhong Tang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - Fang-Jie Zhao
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - Xin-Yuan Huang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
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Wang S, Xing W, Li W, Xie Z, Xiao Y, Huang W. Red light mitigates Cd toxicity in Egeria densa by restricting Cd accumulation and modulating antioxidant defense system. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 211:108675. [PMID: 38705047 DOI: 10.1016/j.plaphy.2024.108675] [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: 03/25/2024] [Revised: 04/21/2024] [Accepted: 04/28/2024] [Indexed: 05/07/2024]
Abstract
Controlling light qualities have been acknowledged as an effective method to enhance the efficiency of phytoremediation, as light has a significant impact on plant growth. This study examined the effects of light qualities on cadmium (Cd) tolerance in aquatic plant Egeria densa using a combination of biochemical and transcriptomic approaches. The study revealed that E. densa exhibits higher resistance to Cd toxicity under red light (R) compared to blue light (B), as evidenced by a significant decrease in photosynthetic inhibition and damage to organelle ultrastructure. After Cd exposure, there was a significantly reduced Cd accumulation and enhanced levels of both glutathione reductase (GR) activity and glutathione (GSH), along with an increase in jasmonic acid (JA) in R-grown E. densa compared to B. Transcriptional analysis revealed that R caused an up-regulation of Cd transporter genes such as ABCG (G-type ATP-binding cassette transporter), ABCC (C-type ATP-binding cassette transporter), and CAX2 (Cation/H+ exchanger 2), while down-regulated the expression of HIPP26 (Heavy metal-associated isoprenylated plant protein 26), resulting in reduced Cd uptake and enhanced Cd exportation and sequestration into vacuoles. Moreover, the expression of genes involved in phytochromes and JA synthesis was up-regulated in Cd treated E. densa under R. In summary, the results suggest that R could limit Cd accumulation and improve antioxidant defense to mitigate Cd toxicity in E. densa, which might be attributed to the enhanced JA and phytochromes. This study provides a foundation for using light control methods with aquatic macrophytes to remediate heavy metal contamination in aquatic systems.
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Affiliation(s)
- Shanwei Wang
- Aquatic Plant Research Center, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
| | - Wei Xing
- Aquatic Plant Research Center, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China
| | - Wei Li
- Aquatic Plant Research Center, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Yani Wetland Ecosystem Positioning Observation and Research Station, Tibet University, Lhasa, China; Key Laboratory of Biodiversity and Environment on the Qinghai-Tibetan Plateau, Ministry of Education, Tibet University, Lhasa, China; Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China
| | - Zuoming Xie
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China
| | - Yuan Xiao
- The Analysis and Testing Center of Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Wenmin Huang
- Aquatic Plant Research Center, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China.
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Yu Y, Alseekh S, Zhu Z, Zhou K, Fernie AR. Multiomics and biotechnologies for understanding and influencing cadmium accumulation and stress response in plants. PLANT BIOTECHNOLOGY JOURNAL 2024. [PMID: 38817148 DOI: 10.1111/pbi.14379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 03/04/2024] [Accepted: 05/03/2024] [Indexed: 06/01/2024]
Abstract
Cadmium (Cd) is one of the most toxic heavy metals faced by plants and, additionally, via the food chain, threatens human health. It is principally dispersed through agro-ecosystems via anthropogenic activities and geogenic sources. Given its high mobility and persistence, Cd, although not required, can be readily assimilated by plants thereby posing a threat to plant growth and productivity as well as animal and human health. Thus, breeding crop plants in which the edible parts contain low to zero Cd as safe food stuffs and harvesting shoots of high Cd-containing plants as a route for decontaminating soils are vital strategies to cope with this problem. Recently, multiomics approaches have been employed to considerably enhance our understanding of the mechanisms underlying (i) Cd toxicity, (ii) Cd accumulation, (iii) Cd detoxification and (iv) Cd acquisition tolerance in plants. This information can be deployed in the development of the biotechnological tools for developing plants with modulated Cd tolerance and detoxification to safeguard cellular and genetic integrity as well as to minimize food chain contamination. The aim of this review is to provide a current update about the mechanisms involved in Cd uptake by plants and the recent developments in the area of multiomics approach in terms of Cd stress responses, as well as in the development of Cd tolerant and low Cd accumulating crops.
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Affiliation(s)
- Yan Yu
- School of Agronomy, Anhui Agricultural University, Hefei, China
- Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
| | - Saleh Alseekh
- Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
- Center of Plant Systems Biology and Biotechnology, Plovdiv, Bulgaria
| | - Zonghe Zhu
- School of Agronomy, Anhui Agricultural University, Hefei, China
| | - Kejin Zhou
- School of Agronomy, Anhui Agricultural University, Hefei, China
| | - Alisdair R Fernie
- Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
- Center of Plant Systems Biology and Biotechnology, Plovdiv, Bulgaria
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Wang Q, Zhou Q, Feng Y, Yang X. Foliar application protected vegetable against poisonous element cadmium and mitigated human health risks. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 926:171915. [PMID: 38522551 DOI: 10.1016/j.scitotenv.2024.171915] [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: 12/18/2023] [Revised: 02/27/2024] [Accepted: 03/21/2024] [Indexed: 03/26/2024]
Abstract
Foliar application has been reported as an effective method to facilitate plant growth and mitigate cadmium (Cd) accumulation. However, the application of foliar fertilizers on plant production, Cd uptake and health risks of Solanaceae family remains unknown. In this study, four foliar fertilizers were applied to investigate their effects on the production, Cd accumulation and human health risk assessment of two varieties of pepper (Capsicum annuum L.) and eggplant (Solanum melongena L.), respectively. Compared with CK, the foliar application increased vegetable production to 104.16 %-123.70 % in peppers, and 100.83 %-105.17 % in eggplants, accordingly. The application of foliar fertilizers largely decreased Cd TF (transportation factor) by up to 23.32 % in JY, 18.37 % in GJ of pepper varieties, and up to 14.47 % in ZL, 15.24 % in HGR of eggplant varieties. Moreover, Cd BAF (bioaccumulation factor) also declined to different extents after the application of foliar fertilizers. As for human health risk assessments, foliar application diminished the hazard index (HI) and carcinogenic risk (CR) of both pepper and eggplant varieties. The results concluded that the application of composed foliar fertilizers was most effective, and could be a promising alternative for the improvement of vegetable production and mitigation of vegetable Cd accumulation and human health risks as well. The results further highlighted the understanding of foliar fertilizer application on vegetable production and health risks, which benefited better vegetable safe production and further guaranteed human health.
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Affiliation(s)
- Qiong Wang
- College of Ecology, Taiyuan University of Technology, Taiyuan 030024, People's Republic of China.
| | - Qiyao Zhou
- Management Committee of Yancheng Economic and Technological Development Zone, Yancheng 224000, People's Republic of China
| | - Ying Feng
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Xiaoe Yang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
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Yu X, Wang X, Sun M, Liu H, Liu D, Dai J. Cadmium immobilization in soil using phosphate modified biochar derived from wheat straw. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 926:171614. [PMID: 38508276 DOI: 10.1016/j.scitotenv.2024.171614] [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: 11/27/2023] [Revised: 02/29/2024] [Accepted: 03/08/2024] [Indexed: 03/22/2024]
Abstract
The phosphate-modified biochar (BC) immobilizes cadmium (Cd), yet little is known about how phosphate species affect Cd detoxification in contaminated soils. We developed phosphate-modified biochar through the pyrolysis of wheat straw impregnated with three types of phosphate: mono‑potassium phosphate (MKP), dipotassium hydrogen phosphate (DKP), and tripotassium phosphate (TKP). The Cd adsorption mechanism of modified biochar was investigated by biochar characterization, adsorption performance evaluation, and soil incubation tests. The results demonstrated that the efficiency of biochar in immobilizing Cd2+ followed the order: TKP-BC > DKP-BC > MKP-BC. The TKP-BC had the highest orthophosphate content, the fastest adsorption rate, and the largest adsorption capacity (Langmuir) of 257.28 mg/g, which is 6.31 times higher than that of the unmodified BC (CK). In contrast, pyrophosphate was predominant in MKP-BC and DKP-BC. The primary adsorption mechanism for Cd2+ was precipitation, followed by cation exchange, as evidenced by the formation of CdP minerals on the BC surface, and an increase of K+ in solution (compared to water-soluble K+) and a decrease of K+ in the biochar during adsorption. Desorption of Cd from the TKP-BC after adsorption was 9.77 %-12.39 % at a pH of 5-9, much lower than that of CK. The soil incubation test showed the diethylenetriaminepentaacetic acid extracted Cd of TKP-BC, MKP-BC, and DKP-BC was reduced by 67.93 %, 18.41 % and 31.30 % over CK, respectively. Using the planar optodes technique, we also found that TKP-BC had the longest effect enhancing in situ soil pH. This study provides a theoretical basis for developing heavy metal pollution control technology using green remediation materials and offers insights into the remediation mechanisms.
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Affiliation(s)
- Xiaojing Yu
- Environment Research Institute, Shandong University, Qingdao 266237, China
| | - Xiaorou Wang
- Environment Research Institute, Shandong University, Qingdao 266237, China
| | - Mei Sun
- Environment Research Institute, Shandong University, Qingdao 266237, China
| | - He Liu
- Environment Research Institute, Shandong University, Qingdao 266237, China
| | - Dongmei Liu
- Environment Research Institute, Shandong University, Qingdao 266237, China
| | - Jiulan Dai
- Environment Research Institute, Shandong University, Qingdao 266237, China.
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Shrestha G, Calvelo-Pereira R, Poggio M, Jeyakumar P, Roudier P, Kereszturi G, Anderson CWN. Predicting cadmium fractions in agricultural soils using proximal sensing techniques. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 349:123889. [PMID: 38574949 DOI: 10.1016/j.envpol.2024.123889] [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: 11/20/2023] [Revised: 02/20/2024] [Accepted: 03/27/2024] [Indexed: 04/06/2024]
Abstract
Cadmium (Cd) accumulation in agricultural systems has caused global environmental and health concerns. Application of phosphate fertiliser to sustain plant production unintentionally accumulated Cd in agricultural soils over time. Rapid and cost-effective Cd monitoring in these soils will help to inform Cd management practices. Compared to total Cd analysis, examining chemical fractions by sequential extraction methods can provide information on the origin, availability, and mobility of soil Cd, and to assess the potential plant Cd uptake. A total of 87 air-dried topsoil (0-15 cm) samples from pastoral farms with a history of long-term application of phosphate fertiliser were analysed using wet chemistry methods for total Cd and Cd forms in exchangeable, acid soluble, metal oxides bound, organic matter bound, and residual fractions. The data acquired using three proximal sensing techniques, visible-near-infrared (vis-NIR), mid-infrared (MIR), and portable X-ray fluorescence (pXRF) spectroscopy were used as input for partial least squares regression to develop models predicting total Cd and Cd fractions. The average total Cd concentration was 0.58 mg Cd/kg soil. For total Cd, cross-validation (cv) results of models using individual vis-NIR, MIR, and pXRF data performed with normalised root mean squared error (nRMSEcv) of 26%, 30%, and 31% and concordance correlation coefficient (CCCcv) of 0.85, 0.77, and 0.75, respectively. For exchangeable Cd, model using MIR data performed with nRMSEcv of 40% and CCCcv of 0.57. For acid soluble and organic matter bound Cd, models using vis-NIR data performed with nRMSEcv of 11% and 33% and CCCcv of 0.97 and 0.84, respectively. Reflectance spectroscopy techniques could potentially be applied as complementary tools to estimate total Cd and plant available and potentially available Cd fractions for effective implementation of Cd monitoring programmes.
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Affiliation(s)
- G Shrestha
- Environmental Sciences Group, School of Agriculture and Environment, Massey University, Manawatu Campus, Private Bag, 11222, Palmerston North, New Zealand; Manaaki Whenua - Landcare Research, Private Bag, 11052, Palmerston North, New Zealand
| | - R Calvelo-Pereira
- Environmental Sciences Group, School of Agriculture and Environment, Massey University, Manawatu Campus, Private Bag, 11222, Palmerston North, New Zealand.
| | - M Poggio
- Manaaki Whenua - Landcare Research, Private Bag, 11052, Palmerston North, New Zealand; AgroCares, Wageningen, the Netherlands
| | - P Jeyakumar
- Environmental Sciences Group, School of Agriculture and Environment, Massey University, Manawatu Campus, Private Bag, 11222, Palmerston North, New Zealand
| | - P Roudier
- Manaaki Whenua - Landcare Research, Private Bag, 11052, Palmerston North, New Zealand; Te Pūnaha Matatini, A New Zealand Centre of Research Excellence, Private Bag, 92019, Auckland, New Zealand
| | - G Kereszturi
- Environmental Sciences Group, School of Agriculture and Environment, Massey University, Manawatu Campus, Private Bag, 11222, Palmerston North, New Zealand
| | - C W N Anderson
- Environmental Sciences Group, School of Agriculture and Environment, Massey University, Manawatu Campus, Private Bag, 11222, Palmerston North, New Zealand
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Deng J, Wang P, Xu Z, Hu T, Li D, Wei X, Chen C, Li Y, Zhang Y. Contaminated soil remediation with nano-FeS loaded lignin hydrogel: A novel strategy to produce safe rice grains while reducing cadmium in paddy field. JOURNAL OF HAZARDOUS MATERIALS 2024; 469:133965. [PMID: 38471381 DOI: 10.1016/j.jhazmat.2024.133965] [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: 01/04/2024] [Revised: 02/21/2024] [Accepted: 03/04/2024] [Indexed: 03/14/2024]
Abstract
Cadmium (Cd) contamination in agricultural soil has been an elevated concern due to the high health risks associated with the transfer through the soil-food chain, particularly in the case of rice. Recently, there has numerous researches on the use of nanoparticle-loaded materials for heavy metal-polluted soil remediation, resulting in favorable outcomes. However, there has been limited research focus on the field-scale application and recovery. This study was aimed to validate the Cd reduction effect of the nano-FeS loaded lignin hydrogel composites (FHC) in mildly polluted paddies, and to propose a field-scale application method. Hence, a multi-site field experiment was conducted in southern China. After the application for 94-103 days, the FHC exhibited a high integrity and elasticity, with a recovery rate of 91.90%. The single-round remediation led to decreases of 0.42-31.72% in soil Cd content and 1.52-49.11% in grain Cd content. Additionally, this remediation technique did not adversely impact rice production. Consequently, applying FHC in the field was demonstrated to be an innovative, efficient, and promising remediation technology. Simultaneously, a strategy was proposed for reducing Cd levels while cultivating rice in mildly polluted fields using the FHC.
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Affiliation(s)
- Jianbin Deng
- Key Laboratory of Arable Land Conservation (South China), MOAE, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Province Key Laboratory for Land Use and Consolidation, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Pu Wang
- Key Laboratory of Arable Land Conservation (South China), MOAE, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Province Key Laboratory for Land Use and Consolidation, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Zhaoxin Xu
- Key Laboratory of Arable Land Conservation (South China), MOAE, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Province Key Laboratory for Land Use and Consolidation, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Tian Hu
- Key Laboratory of Arable Land Conservation (South China), MOAE, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Province Key Laboratory for Land Use and Consolidation, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Deyun Li
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Xiujiao Wei
- Key Laboratory of Arable Land Conservation (South China), MOAE, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Province Key Laboratory for Land Use and Consolidation, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Chengyu Chen
- Key Laboratory of Arable Land Conservation (South China), MOAE, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Province Key Laboratory for Land Use and Consolidation, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Yongtao Li
- Key Laboratory of Arable Land Conservation (South China), MOAE, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Province Key Laboratory for Land Use and Consolidation, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
| | - Yulong Zhang
- Key Laboratory of Arable Land Conservation (South China), MOAE, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Province Key Laboratory for Land Use and Consolidation, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
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Bao Y, Zheng X, Guo R, Wang L, Liu C, Zhang W. Biomass chitosan/sodium alginate colorimetric imprinting hydrogels with integrated capture and visualization detection for cadmium(II). Carbohydr Polym 2024; 331:121841. [PMID: 38388049 DOI: 10.1016/j.carbpol.2024.121841] [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: 11/22/2023] [Revised: 01/15/2024] [Accepted: 01/17/2024] [Indexed: 02/24/2024]
Abstract
Due to Cd(II) with highly toxic, persistent and bioaccumulative, the discharge of it into the environment brings serious pollution. Developing strategies that are efficient, low-cost, pollution-free and specific to removing Cd(II) from wastewater is therefore of great urgency and prime importance. A novel chitosan/sodium alginate ionic imprinting(IICA) hydrogels with specific adsorption capacity for Cd(II) was prepared through freeze-thaw and ion imprinting, and finally the colorimetric sensor (IICAS) was prepared via introducing Rhodamine B(RhB) and Victoria blue(VBB) by immersion to achieve visual detection of Cd(II). The IICA hydrogels with imprinted hole structure had higher adsorption capacity and better specific selectivity for Cd(II). As well as internal diffusion, coordination, ion exchange, and hydrogen bonding influenced the adsorption rate. Moreover, the IICAS exhibited good selective detection ability and linearity for Cd(II) with the fitted correlation coefficient (R2) = 0.98, limit of detection (LOD) = 35 nmol/L. Combined with the smartphone platform, portable and quantitative detection of Cd(II) can be achieved, Within the 0-100 mg/L range, R2 remained 0.94, and LOD was 75 nmol/L. This strategy of preparing a novel whole biomass IICAS integrating capture and visual detection provides a new insight into the construction of a promising candidate sensor for the removal and detection of Cd(II).
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Affiliation(s)
- Yan Bao
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, PR China; Xi'an Key Laboratory of Green Chemicals and Functional Materials, Xi'an, 710021, PR China.
| | - Xi Zheng
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, PR China; Xi'an Key Laboratory of Green Chemicals and Functional Materials, Xi'an, 710021, PR China
| | - Ruyue Guo
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, PR China; Xi'an Key Laboratory of Green Chemicals and Functional Materials, Xi'an, 710021, PR China
| | - Luxuan Wang
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, PR China; Xi'an Key Laboratory of Green Chemicals and Functional Materials, Xi'an, 710021, PR China
| | - Chao Liu
- Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and Technology, Shaanxi University of Science and Technology, Xi'an, 710021, PR China
| | - Wenbo Zhang
- Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and Technology, Shaanxi University of Science and Technology, Xi'an, 710021, PR China
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Wang H, Gan X, Tang Y. Mechanisms of Heavy Metal Cadmium (Cd)-Induced Malignancy. Biol Trace Elem Res 2024:10.1007/s12011-024-04189-2. [PMID: 38683269 DOI: 10.1007/s12011-024-04189-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 04/16/2024] [Indexed: 05/01/2024]
Abstract
The environmental pollution of cadmium is worsening, and its significant carcinogenic effects on humans have been confirmed. Cadmium can induce cancer through various signaling pathways, including the ERK/JNK/p38MAPK, PI3K/AKT/mTOR, NF-κB, and Wnt. It can also cause cancer by directly damaging DNA and inhibiting DNA repair systems, or through epigenetic mechanisms such as abnormal DNA methylation, LncRNA, and microRNA. However, the detailed mechanisms of Cd-induced cancer are still not fully understood and require further investigation.
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Affiliation(s)
- Hairong Wang
- School of Public Health, Southwest Medical University, No. 1, Section 1, Xianglin Road, Longmatan District, Luzhou, 646000, China
| | - Xuehui Gan
- School of Public Health, Southwest Medical University, No. 1, Section 1, Xianglin Road, Longmatan District, Luzhou, 646000, China
| | - Yan Tang
- School of Public Health, Southwest Medical University, No. 1, Section 1, Xianglin Road, Longmatan District, Luzhou, 646000, China.
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Sorour AA, Badr R, Mahmoud N, Abdel-Latif A. Cadmium and zinc accumulation and tolerance in two Egyptian cultivars (S53 and V120) of Helianthus annuus L. as potential phytoremediator. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2024; 26:1643-1654. [PMID: 38644603 DOI: 10.1080/15226514.2024.2343842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
One of the most important oil crops in the world, sunflower (Helianthus annuus L.), is recognized to help in soil phytoremediation. Heavy metal (HM) contamination is one of the most abiotic challenges that may affect the growth and productivity of such an important crop plant. We studied the influence of HM-contaminated soils on metal homeostasis and the potential hypertolerance mechanisms in two sunflower Egyptian cultivars (V120 and S53). Both cultivars accumulated significantly higher cadmium concentrations in their roots compared to their shoots during Cd and Zn/Cd treatments. Higher root concentrations of 121 mg g-1 dry weight (DW) and 125 mg g-1 DW were measured in V120 plants compared to relatively lower values of 111 mg g-1 DW and 105 mg g-1 DW in the roots of S53 plants, respectively. Cadmium contamination significantly upregulated the expression of heavy metal ATPases (HaHMA4) in the shoots of V120 plants. On the other hand, their roots displayed a notable expression of HaHMA3. This study indicates that V120 plants accumulated and sequestered Cd in their roots. Therefore, it is advised to cultivate the V120 cultivar in areas contaminated with heavy metals as it is a promising Cd phytoremediator.
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Affiliation(s)
- Ahmed A Sorour
- Department of Botany and Microbiology, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Reem Badr
- Department of Botany and Microbiology, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Nermen Mahmoud
- Department of Botany and Microbiology, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Amani Abdel-Latif
- Department of Botany and Microbiology, Faculty of Science, Alexandria University, Alexandria, Egypt
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Zhang X, Bold T, Zhang W, Zhao Q, Li Y, Zhang J, Lu L, Ji X, Zhang L, Jin Y, Tang J. Spatio-temporal distribution of cadmium levels in Chinese population and its potential risk factors. Heliyon 2024; 10:e28879. [PMID: 38596075 PMCID: PMC11002678 DOI: 10.1016/j.heliyon.2024.e28879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 03/22/2024] [Accepted: 03/26/2024] [Indexed: 04/11/2024] Open
Abstract
Cadmium (Cd), a ubiquitous heavy metal, exists in numerous environmental matrices and has severe adverse effects on various human organs and tissues. This research evaluates blood and urine Cd levels in the Chinese population through data mining using Monte Carlo simulation (MCS). A total of 168 scientific studies (120 on urine and 48 on blood) published between January 1980 and December 2020, reflecting a population of 109,743 individuals in China, were included in the study. The results indicate that the blood and urine Cd levels in the Chinese population exhibited a peak from 1990 to 1995 and remained stable after 1995, averaging 1.21 μg/L of blood Cd (BCd) and 0.61 μg/L of urine Cd (UCd). The spatial trend of Cd levels varied significantly. Shandong, Zhejiang, Heilongjiang, and Guangdong provinces were identified as the top provinces with high Cd levels, which were related to factors such as tobacco sales, E-waste amounts, and contaminated rice. Additionally, the study highlights that BCd concentrations are highest among preschool-aged individuals, whereas school-age and adolescent groups exhibit the lowest levels. However, no significant difference existed among the different age groups. Males showed significantly higher Cd levels than females in the general population. Moreover, exposure to smoking, drinking, and staple food preferences had an impact on Cd levels. Furthermore, this comprehensive study, using biological monitoring and data mining, provides valuable information on Cd pollution levels in the Chinese population. It presents a statistical analysis that can aid decision-makers in implementing effective measures to control potential Cd pollution and improve the health of vulnerable populations.
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Affiliation(s)
- Xinglin Zhang
- Clinical Medical Research Center for Women and Children Diseases, Shandong Provincial Maternal and Child Health Care Hospital Affiliated to Qingdao University, Jinan 250001, China
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao 266071, China
| | - Tsendmaa Bold
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao 266071, China
| | - Wenjing Zhang
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao 266071, China
| | - Qianwen Zhao
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao 266071, China
| | - Yanting Li
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao 266071, China
| | - Jianzhong Zhang
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao 266071, China
| | - Lin Lu
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao 266071, China
| | - Xiaoya Ji
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao 266071, China
| | - Lin Zhang
- Clinical Medical Research Center for Women and Children Diseases, Shandong Provincial Maternal and Child Health Care Hospital Affiliated to Qingdao University, Jinan 250001, China
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao 266071, China
| | - Yuan Jin
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao 266071, China
| | - Jinglong Tang
- Clinical Medical Research Center for Women and Children Diseases, Shandong Provincial Maternal and Child Health Care Hospital Affiliated to Qingdao University, Jinan 250001, China
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao 266071, China
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Liu C, Chang J, Yang J, Li H, Wu J, Wu J, Dai X, Wei F, Zhang X, Su X, Xia Z. Overexpression of NtDOGL4 improves cadmium tolerance through abscisic acid signaling pathway in tobacco. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133462. [PMID: 38215520 DOI: 10.1016/j.jhazmat.2024.133462] [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: 10/25/2023] [Revised: 01/02/2024] [Accepted: 01/05/2024] [Indexed: 01/14/2024]
Abstract
The DELAY OF GERMINATION1-LIKE (DOGL) genes play an essential role in diverse biological processes in plants. However, their exact involvement in the response to cadmium (Cd) stress via the ABA pathway remains unclear. Here, we focused on NtDOGL4, a tobacco DOGL gene whose expression is highly induced upon exposure to Cd. Overexpression of NtDOGL4 in tobacco resulted in elevated endogenous ABA levels, reduced Cd accumulation, and increased tolerance to Cd. Moreover, NtDOGL4 overexpression led to decreased accumulation of reactive oxygen species (ROS) and improved ROS scavenging capacity under Cd stress. Further analyses revealed the direct binding of the transcription factor ABSCISIC ACID-INSENSITIVE 5 (ABI5) to the NtDOGL4 promoter, positively regulating its expression in tobacco. Notably, NtDOGL4 overexpression promoted suberin formation and deposition, while suppressing the expression of Cd transporter genes in tobacco roots, as evidenced by histochemical staining, suberin fraction determination, and qRT-PCR assays. Collectively, our results demonstrate that NtDOGL4 overexpression reduces Cd accumulation, thereby improving Cd stress tolerance through the modulation of antioxidant system, transcription of Cd transporters, and suberin deposition. Notably, the NtABI5-NtDOGL4 module functions as a positive regulator in tobacco's Cd tolerance, underscoring its potential as a molecular target for developing low-Cd crops to ensure environmental safety.
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Affiliation(s)
- Can Liu
- College of Life Science, Henan Agricultural University, Zhengzhou 450046, China; College of Tobacco Science, Henan Agricultural University, Zhengzhou 450046, China
| | - Jianbo Chang
- Henan Provincial Tobacco Company, Zhengzhou 450018, China
| | - Jianxin Yang
- Henan Provincial Tobacco Company, Zhengzhou 450018, China
| | - Hongchen Li
- Henan Provincial Tobacco Company, Zhengzhou 450018, China
| | - Jiang Wu
- Henan Provincial Tobacco Company, Zhengzhou 450018, China
| | - Junlin Wu
- Henan Provincial Tobacco Company, Zhengzhou 450018, China
| | - Xiaoyan Dai
- College of Tobacco Science, Henan Agricultural University, Zhengzhou 450046, China.
| | - Fengjie Wei
- Henan Provincial Tobacco Company, Zhengzhou 450018, China.
| | - Xiaoquan Zhang
- College of Tobacco Science, Henan Agricultural University, Zhengzhou 450046, China.
| | - Xinhong Su
- Henan Provincial Tobacco Company, Zhengzhou 450018, China.
| | - Zongliang Xia
- College of Life Science, Henan Agricultural University, Zhengzhou 450046, China.
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Pan SF, Ji XH, Liu XL, Xie YH, Xiao SY, Tian FX, Xue T, Liu SH. Influence of landform, soil properties, soil Cd pollution and rainfall on the spatial variation of Cd in rice: Contribution and pathway models based on big data. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:168687. [PMID: 37996024 DOI: 10.1016/j.scitotenv.2023.168687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 11/14/2023] [Accepted: 11/16/2023] [Indexed: 11/25/2023]
Abstract
Landform, soil properties, soil cadmium (Cd) pollution and rainfall are the important factors affecting the spatial variation of rice Cd. In this study, we conducted big data mining and model analysis of 150,000 rice-soil sampling sites to examine the effects by the above four factors on the spatial variation of rice Cd in Hunan Province, China. Specifically, the variable coefficient of rice Cd in space was significantly correlated with the partition scale according to the logistic fitting. The improved random forest results suggested that elevation (DEM) and pH were the two most important factors affecting the spatial variation of rice Cd, followed by relief, soil Cd content and rainfall. Typically, variance partitioning analysis (VPA) revealed that both the soil property and the interactive effects between the soil property and Cd pollution were the principal contributors to the rice-Cd variation, with the respective contributing rates of 30.5 % and 29.0 %. Meanwhile, the partial least square-structural equation modelling (PLS-SEM) elucidated 4 main paths of specific indirect effects on rice-Cd variation. They were landform → physicochemical property → soil acidity → rice-Cd variation, landform → soil acidity → rice-Cd variation, physicochemical property → soil acidity → rice-Cd variation, and soil texture → soil acidity → rice-Cd variation. This work can provide a general guidance for scientific zoning, accurate prediction and prevention of Cd pollution in paddy fields.
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Affiliation(s)
- Shu-Fang Pan
- Key Lab of Prevention, Control and Remediation of Soil Heavy Metal Pollution, Hunan Institute of Agro-Environment and Ecology, Hunan Academy of Agricultural Sciences, Changsha 410125, China; Ministry of Agriculture Key Lab of Agri-Environment in the Midstream of Yangtze River Plain, Changsha 410125, China
| | - Xiong-Hui Ji
- Key Lab of Prevention, Control and Remediation of Soil Heavy Metal Pollution, Hunan Institute of Agro-Environment and Ecology, Hunan Academy of Agricultural Sciences, Changsha 410125, China; Ministry of Agriculture Key Lab of Agri-Environment in the Midstream of Yangtze River Plain, Changsha 410125, China.
| | - Xin-Liang Liu
- Key Laboratory of Agro-ecological Processes in Subtropical Regions and Changsha Research Station for Agricultural & Environmental Monitoring, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
| | - Yun-He Xie
- Key Lab of Prevention, Control and Remediation of Soil Heavy Metal Pollution, Hunan Institute of Agro-Environment and Ecology, Hunan Academy of Agricultural Sciences, Changsha 410125, China; Ministry of Agriculture Key Lab of Agri-Environment in the Midstream of Yangtze River Plain, Changsha 410125, China
| | - Shun-Yong Xiao
- Ecological Environment Rural Station of Hunan Province, Changsha 410014, China
| | - Fa-Xiang Tian
- Key Lab of Prevention, Control and Remediation of Soil Heavy Metal Pollution, Hunan Institute of Agro-Environment and Ecology, Hunan Academy of Agricultural Sciences, Changsha 410125, China; Ministry of Agriculture Key Lab of Agri-Environment in the Midstream of Yangtze River Plain, Changsha 410125, China
| | - Tao Xue
- Key Lab of Prevention, Control and Remediation of Soil Heavy Metal Pollution, Hunan Institute of Agro-Environment and Ecology, Hunan Academy of Agricultural Sciences, Changsha 410125, China; Ministry of Agriculture Key Lab of Agri-Environment in the Midstream of Yangtze River Plain, Changsha 410125, China
| | - Sai-Hua Liu
- Key Lab of Prevention, Control and Remediation of Soil Heavy Metal Pollution, Hunan Institute of Agro-Environment and Ecology, Hunan Academy of Agricultural Sciences, Changsha 410125, China; Ministry of Agriculture Key Lab of Agri-Environment in the Midstream of Yangtze River Plain, Changsha 410125, 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 XY, Li XY, Jiang YF, Zhang C, Yang Q, Manzoor M, Luo J, Guan DX. High-resolution chemical imaging to understand Cd activation in rice rhizosphere of karstic soils. CHEMOSPHERE 2024; 349:140988. [PMID: 38122945 DOI: 10.1016/j.chemosphere.2023.140988] [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: 11/04/2023] [Revised: 12/09/2023] [Accepted: 12/16/2023] [Indexed: 12/23/2023]
Abstract
Cadmium (Cd) activation, especially at a high spatial resolution, in paddy soils with a high geogenic Cd background is yet to be understood. To investigate the temporal and spatial patterns of Cd activation in rice rhizosphere, pot and rhizotron experiments were conducted using four paddy soils with high geogenic Cd (0.11-3.70 mg kg-1) from Guangxi, southwestern China. The pot experiment results showed that porewater Cd concentrations initially decreased and then increased over the complete rice growth period, reaching its lowest value during the late-tillering and early-filling stages. Besides, correlation analysis identified organic matter and root manganese (Mn) content as the main factors affecting rice Cd uptake, with Mn having a negative effect and organic matter having a positive effect. Sub-millimeter two-dimensional chemical imaging revealed that the distribution of labile Cd in the rhizosphere (by diffusive gradients in thin-films, or DGT) was influenced by the root system and soil properties, such as pH (by planar optode) and acid phosphatase activity (by soil zymography). Soil acid phosphatase activity increased under Cd stress. The overall pH at rice rhizosphere decreased. Moreover, a close relationship was found between the spatial distributions of soil labile Mn and Cd at the rhizosphere, with higher Mn being associated with lower Cd lability. This study highlights Mn as a key element in regulating rice Cd uptake and enlightens future Mn-based strategies for addressing Cd pollution in rice paddy soils, especially in karst areas with high geochemical background.
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Affiliation(s)
- Xing-Yue Li
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Xi-Yuan Li
- Tianjin Key Laboratory of Earth Critical Zone Science and Sustainable Development in Bohai Rim, Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin, 300072, China
| | - Yi-Fan Jiang
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Chao Zhang
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Qiong Yang
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Maria Manzoor
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jun Luo
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Dong-Xing Guan
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China.
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Xie Q, Deng W, Su Y, Ma L, Yang H, Yao F, Lin W. Transcriptome Analysis Reveals Novel Insights into the Hyperaccumulator Phytolacca acinosa Roxb. Responses to Cadmium Stress. PLANTS (BASEL, SWITZERLAND) 2024; 13:297. [PMID: 38256850 PMCID: PMC10819451 DOI: 10.3390/plants13020297] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/04/2024] [Accepted: 01/15/2024] [Indexed: 01/24/2024]
Abstract
Cadmium (Cd) is a highly toxic heavy metal that causes serious damage to plant and human health. Phytolacca acinosa Roxb. has a large amount of aboveground biomass and a rapid growth rate, and it has been identified as a novel type of Cd hyperaccumulator that can be harnessed for phytoremediation. However, the molecular mechanisms underlying the response of P. acinosa to Cd2+ stress remain largely unclear. In this study, the phenotype, biochemical, and physiological traits of P. acinosa seeds and seedlings were analyzed under different concentrations of Cd2+ treatments. The results showed higher Cd2+ tolerance of P. acinosa compared to common plants. Meanwhile, the Cd2+ content in shoots reached 449 mg/kg under 10 mg/L Cd2+ treatment, which was obviously higher than the threshold for Cd hyperaccumulators. To investigate the molecular mechanism underlying the adaptability of P. acinosa to Cd stress, RNA-Seq was used to examine transcriptional responses of P. acinosa to Cd stress. Transcriptome analysis found that 61 genes encoding TFs, 48 cell wall-related genes, 35 secondary metabolism-related genes, 133 membrane proteins and ion transporters, and 96 defense system-related genes were differentially expressed under Cd2+ stress, indicating that a series of genes were involved in Cd2+ stress, forming a complex signaling regulatory mechanism. These results provide new scientific evidence for elucidating the regulatory mechanisms of P. acinosa response to Cd2+ stress and new clues for the molecular breeding of heavy metal phytoremediation.
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Affiliation(s)
- Qin Xie
- College of Pharmacy, Xiangnan University, Chenzhou 423099, China; (Q.X.)
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha 410128, China
| | - Wentao Deng
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha 410128, China
| | - Yi Su
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha 410128, China
| | - Liying Ma
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha 410128, China
| | - Haijun Yang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Feihong Yao
- College of Pharmacy, Xiangnan University, Chenzhou 423099, China; (Q.X.)
| | - Wanhuang Lin
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Hunan Agricultural University, Changsha 410128, China
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Jin Y, Cheng Z, He Y, Xu J, Shi J. Dynamic response of cadmium immobilization to a Ca-Mg-Si soil conditioner in the contaminated paddy soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 908:168394. [PMID: 37956833 DOI: 10.1016/j.scitotenv.2023.168394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 10/30/2023] [Accepted: 11/05/2023] [Indexed: 11/15/2023]
Abstract
Soil conditioners are often used to immobilize soil heavy metals. Understanding the transfer of Cd in soil-plant system to different application rates and modes of soil conditioners application is essential for food safety. The stabilization persistence of soil conditioners in immobilizing Cd, to date however, is still limited. In this study, the stabilization persistence of a Ca-Mg-Si soil conditioner (SC) was assessed based on a six-year Cd-contaminated paddy field study with growth of two rice local main varieties (Yongyou17-YY and Xiushui14-XS) and four application rates (1500 kg ha-1 (low), and 3000 kg ha-1 (high) for the first year only, and 1500 kg ha-1 and 3000 kg ha-1 every year). Results showed that continuous SC application with high rate increased soil pH, simultaneously with more water soluble and exchangeable Cd was transferred to Fe-Mn oxides bound and carbonate-bound Cd in the first 3-4 years; while the low rate was only effective with growth of YY that were applied for a shorter period of time. Statistical analysis indicated that the stability effect of SC was integratedly affected by soil pH, SC application rate, and meteorological factors (precipitation and temperature). Especially, soil fractionation contributed the most changes of Cd availability in soil, while meteorological factors, SC application rate and crop varieties altogether exhibited the great effect on Cd accumulation in grain. Our finding demonstrated the potential long-term stabilization of SC in soil Cd immobilization, with the performance needed for further verification on the basis of different soil types.
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Affiliation(s)
- Yi Jin
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Hangzhou 310058, China
| | - Zhongyi Cheng
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Hangzhou 310058, China
| | - Yan He
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Hangzhou 310058, China
| | - Jianming Xu
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Hangzhou 310058, China
| | - Jiachun Shi
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Hangzhou 310058, China.
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Xu ZR, You TT, Liu WY, Ye K, Zhao FJ, Wang P. Mitigating cadmium accumulation in dicotyledonous vegetables by iron fertilizer through inhibiting Fe transporter IRT1-mediated Cd uptake. CHEMOSPHERE 2024; 346:140559. [PMID: 37898465 DOI: 10.1016/j.chemosphere.2023.140559] [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: 09/17/2023] [Revised: 10/12/2023] [Accepted: 10/26/2023] [Indexed: 10/30/2023]
Abstract
The solubility of cadmium (Cd) in soil and its transfer to plants are influenced by soil pH. While increasing soil pH reduces Cd solubility and accumulation in rice plants grown in acidic soils, its effect on Cd accumulation in vegetables remains inconclusive. Here, we investigated the impact of soil pH on Cd accumulation in dicotyledonous vegetables and elucidated the underlying molecular mechanisms. Soils collected from various locations were supplemented with varying quantities of lime to achieve soil pH values of around 5.0, 6.0, 7.0, and 8.0. Raising soil pH from around 5.0 to 8.0 markedly decreased extractable Cd. However, increasing soil pH tended to promote shoot Cd accumulation in dicotyledonous vegetable species including lettuce, pakchoi, and Chinese cabbage, and the model dicotyledonous plant Arabidopsis thaliana. Conversely, soil pH increase resulted in a monotonic decrease in rice Cd accumulation. In our hydroponic experiments, we discovered that iron (Fe) deficiency substantially increased Cd uptake and accumulation in dicotyledonous plants but not in rice. Increasing soil pH reduced soil Fe availability and induced the Fe transporter gene IRT1 expression in dicotyledonous vegetables roots, which led to an increase in IRT1-mediated Cd uptake and subsequently increased Cd accumulation as soil pH increases. A comprehensive model incorporating extractable Cd and root IRT1 expression better explained Cd accumulation in vegetable shoots. The application of 50 mg/kg of Fe fertilizer in neutral or alkaline soils resulted in a significant reduction in Cd accumulation by 34-58% in dicotyledonous vegetables. These findings reveal that increasing soil pH has two opposite effects, decreasing soil Cd availability while promoting Cd uptake through IRT1 upregulation, reconciling the inconsistency in its effect on Cd accumulation in dicotyledonous plants. Our findings provide important insights for understanding the factors affecting Cd uptake in plants and offer a practical solution to mitigate Cd contamination in vegetables.
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Affiliation(s)
- Zhong-Rui Xu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ting-Ting You
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Wen-Yi Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Kang Ye
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Fang-Jie Zhao
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Peng Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China; Centre for Agriculture and Health, Academy for Advanced Interdisciplinary Studies, Nanjing Agricultural University, Nanjing, 210095, China.
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Chen J, Huang SB, Wang X, Huang L, Gao C, Huang XY, Zhao FJ. IAR4 mutation enhances cadmium toxicity by disturbing auxin homeostasis in Arabidopsis thaliana. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:438-453. [PMID: 37721748 DOI: 10.1093/jxb/erad366] [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: 11/28/2022] [Accepted: 09/15/2023] [Indexed: 09/19/2023]
Abstract
Cadmium (Cd) is highly toxic to plants, but the targets and modes of toxicity remain unclear. We isolated a Cd-hypersensitive mutant of Arabidopsis thaliana, Cd-induced short root 2 (cdsr2), in the background of the phytochelatin synthase-defective mutant cad1-3. Both cdsr2 and cdsr2 cad1-3 displayed shorter roots and were more sensitive to Cd than their respective wild type. Using genomic resequencing and complementation, IAR4 was identified as the causal gene, which encodes a putative mitochondrial pyruvate dehydrogenase E1α subunit. cdsr2 showed decreased pyruvate dehydrogenase activity and NADH content, but markedly increased concentrations of pyruvate and alanine in roots. Both Cd stress and IAR4 mutation decreased auxin level in the root tips, and the effect was additive. A higher growth temperature rescued the phenotypes in cdsr2. Exogenous alanine inhibited root growth and decreased auxin level in the wild type. Cadmium stress suppressed the expression of genes involved in auxin biosynthesis, hydrolysis of auxin-conjugates and auxin polar transport. Our results suggest that auxin homeostasis is a key target of Cd toxicity, which is aggravated by IAR4 mutation due to decreased pyruvate dehydrogenase activity. Decreased auxin level in cdsr2 is likely caused by increased auxin-alanine conjugation and decreased energy status in roots.
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Affiliation(s)
- Jie Chen
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Shao Bai Huang
- School of Molecular Science and ARC Centre of Excellence in Plant Energy Biology, The University of Western Australia, Crawley, Western Australia 6009, Australia
| | - Xue Wang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - LiZhen Huang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Cheng Gao
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xin-Yuan Huang
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Fang-Jie Zhao
- State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China
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Zhong J, Liu Y, Chen X, Ye Z, Li Y, Li W. The impact of acid rain on cadmium phytoremediation in sunflower (Helianthus annuus L.). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 340:122778. [PMID: 37863250 DOI: 10.1016/j.envpol.2023.122778] [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: 07/17/2023] [Revised: 10/01/2023] [Accepted: 10/17/2023] [Indexed: 10/22/2023]
Abstract
Sunflower is an ideal crop for phytoremediation of cadmium-contaminated farmland, as it brings economic benefits while conducting soil remediation. Due to industrial emissions and car exhaust, Cd contaminated areas are often accompanied by acid rain. However, the impact of acid rain on the Cd remediation capacity of sunflowers and its potential influencing factors are unclear. An experiment was manipulated to elucidate the effects of Cd concentration (0,10,50,100 μmol/L) and acid rain (pH 4.0) on the phytoremediation ability of sunflowers, in which the properties of them were explored. The results indicated that Cd stress is the main factor affecting the growth of sunflowers. Without AR, Cd treatment decreased sunflower biomass by 67.5-85.6%. Under AR, Cd treatment decreased sunflower biomass 53.9-86.4%. Compared without AR, the relative chlorophyll content with AR increased by 22.3-23.1%, while the YII with AR decreased by 6.5-20.0%. There was an interaction between acid rain and Cd stress on antioxidant enzyme activity. With AR, CAT activity at 0 μmol/L Cd treatment increased by 25.6%, compared without AR. Whether there is acid rain or not, the POD and SOD activities were increased at 10, 50 μmol/L Cd treatment, but they were decreased at 100 μmol/L Cd treatment. Among them, acid rain exacerbated the impact of POD activity (decreased by 31.4%) at 100 μmol/L Cd treatment and SOD activity (decreased by 15.1%) at 50 μmol/L Cd treatment, compared without AR. In this experiment, the phytoremediation capacity of sunflowers mainly depended on the concentration of Ca in the leaves and their antioxidant capacity. Acid rain enhanced 77.5% the total Cd accumulation at 10 μmol/L Cd treatment, compared without AR. Acid rain exacerbated the damage of Cd to the chloroplast structure of sunflowers, and reduced the accumulation of starch particles. The study findings may be useful for improving the phytoremediation of Cd-contaminated soil.
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Affiliation(s)
- Jiawen Zhong
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China
| | - Yeqing Liu
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China
| | - Xinheng Chen
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China
| | - Zihao Ye
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China
| | - Yongtao Li
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China; Key Laboratory of Arable Land Conservation (South China), MOA, South China Agricultural University, Guangzhou 510642, China; Guangdong Province Key Laboratory for Land Use and Consolidation, South China Agricultural University, Guangzhou 510642, China
| | - Wenyan Li
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China; Key Laboratory of Arable Land Conservation (South China), MOA, South China Agricultural University, Guangzhou 510642, China; Guangdong Province Key Laboratory for Land Use and Consolidation, South China Agricultural University, Guangzhou 510642, China.
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49
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Singh D, Sharma NL, Singh D, Siddiqui MH, Sarkar SK, Rathore A, Prasad SK, Gaafar ARZ, Hussain S. Zinc oxide nanoparticles alleviate chromium-induced oxidative stress by modulating physio-biochemical aspects and organic acids in chickpea (Cicer arietinum L.). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 206:108166. [PMID: 38039586 DOI: 10.1016/j.plaphy.2023.108166] [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: 09/10/2023] [Revised: 10/16/2023] [Accepted: 11/03/2023] [Indexed: 12/03/2023]
Abstract
Extensive chromium (Cr) release into water and soil severely impairs crop productivity worldwide. Nanoparticle (NP) technology has shown potential for reducing heavy metal toxicity and improving plant physicochemical profiles. Herein, we investigated the effects of exogenous zinc oxide NPs (ZnO-NPs) on alleviating Cr stress in Cr-sensitive and tolerant chickpea genotypes. Hydroponically grown chickpea plants were exposed to Cr stress (0 and 120 μM) and ZnO-NPs (25 μM, 20 nm size) twice at a 7-day interval. Cr exposure reduced physiochemical profiles, ion content, cell viability, and gas exchange parameters, and it increased organic acid exudate accumulation in roots and the Cr content in the roots and leaves of the plants. However, ZnO-NP application significantly increased plant growth, enzymatic activities, proline, total soluble sugar, and protein and gas exchange parameters and reduced malondialdehyde and hydrogen peroxide levels, Cr content in roots, and organic acid presence to improve root cell viability. This study provides new insights into the role of ZnO-NPs in reducing oxidative stress along with Cr accumulation and mobility due to low levels of organic acids in chickpea roots. Notably, the Cr-tolerant genotype exhibited more pronounced alleviation of Cr stress by ZnO-NPs. These findings highlight the potential of ZnO-NP in regulating plant growth, reducing Cr accumulation, and promoting sustainable agricultural development.
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Affiliation(s)
- Deepti Singh
- Department of Botany, Meerut College, Meerut, India.
| | | | - Dharmendra Singh
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Manzer H Siddiqui
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia.
| | - Susheel Kumar Sarkar
- Division of Design of Experiments, ICAR-Indian Agricultural Statistics Research Institute, New Delhi, India
| | - Abhishek Rathore
- Regional Breeding Informatics Lead, Excellence in Breeding Platform, The International Maize and Wheat Improvement Center (CIMMYT) Building ICRISAT Campus, Patancheru, Hyderabad, India
| | - Saroj Kumar Prasad
- Department of Agronomy, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, India
| | - Abdel-Rhman Z Gaafar
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Sadam Hussain
- College of Agronomy, Northwest A&F University, Yangling, 712100, China
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50
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Manzoor M, Abdalla MA, Hussain MA, Mühling KH. Silicon-Selenium Interplay Imparts Cadmium Resistance in Wheat through an Up-Regulating Antioxidant System. Int J Mol Sci 2023; 25:387. [PMID: 38203560 PMCID: PMC10778846 DOI: 10.3390/ijms25010387] [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: 11/08/2023] [Revised: 12/15/2023] [Accepted: 12/22/2023] [Indexed: 01/12/2024] Open
Abstract
Cadmium (Cd), being a highly toxic heavy metal, significantly impacts plant growth and development by altering nutrient uptake and causing oxidative and structural damage, resulting in reduced yield. To combat Cd toxicity and accumulation in wheat, it was hypothesized that co-application of Selenium (Se) and Silicon (Si) can reduce the adverse effect of Cd and regulate Cd resistance while improving Se fortification in wheat. Therefore, this study evaluated the comparative effect of Se and Si on the growth and antioxidant defense systems of wheat plants grown in a hydroponic setup. Briefly, the plants were acclimatized to the hydroponic solution for 1 week and then exposed to 10 µmol Cd. Afterwards, the treatments, including 0.2 mmol Si and 1.5 µmol Se, were applied as a root and foliar application, respectively. Plants supplemented with both Se and Si showed improved biomass and other physiological growth attributes, and this response was associated with improved activity/contents of antioxidants, including glutathione (GSH) content, glutathione reductase (GR), ascorbate peroxidase (APX), and catalase (CAT), with related lowering of hydrogen peroxide, malondialdehyde content, and structural damages. Moreover, by Se + Si supplementation, a decrease in total S levels in plant tissues was observed, whereas an increase in total protein concentration and GSH indicated a different and novel mechanism of Cd tolerance and S homeostasis in the plant. It was observed that Si was more involved in significantly reducing Cd translocation by stabilizing Cd in the root and reducing its content in the soluble fraction in both the root and shoot. Whereas Se was found to play the main role in reducing the oxidative damage caused by Cd, and the effect was more profound in the shoot. In addition, this study also observed a positive correlation between Si and Se for relative uptake, which had not been reported earlier. Our findings show that the Se and Si doses together benefit growth regulation and nutrient uptake; additionally, their combinations support the Cd resistance mechanism in wheat through upregulation of the antioxidant system and control of Cd translocation and subcellular distribution, ultimately contributing to the nutritional quality of wheat produced. Thus, it is concluded that the co-application of Se and Si has improved the nutritional quality while reducing the Cd risk in wheat and therefore needs to be employed as a potential strategy to ensure food safety in a Cd-contaminated environment.
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Affiliation(s)
- Maria Manzoor
- Institute of Plant Nutrition and Soil Science, Kiel University, Hermann-Rodewald-Street 2, 24118 Kiel, Germany; (M.A.A.); (M.A.H.)
| | | | | | - Karl Hermann Mühling
- Institute of Plant Nutrition and Soil Science, Kiel University, Hermann-Rodewald-Street 2, 24118 Kiel, Germany; (M.A.A.); (M.A.H.)
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