1
|
Guo J, Ge C, Wang G, Zhou D. Mechanisms of chloride to promote the uptake and accumulation of cadmium in rice (Oryza sativa L.). THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 926:172046. [PMID: 38552983 DOI: 10.1016/j.scitotenv.2024.172046] [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: 12/14/2023] [Revised: 03/25/2024] [Accepted: 03/26/2024] [Indexed: 04/06/2024]
Abstract
Cadmium (Cd) contamination in rice ecosystems posed a critical challenge to global food security and environmental health. This study aimed to unveil the key mechanisms trough hydroponic experiments by which chloride (Cl-) promoted the absorption and accumulation of cadmium (Cd) in rice plants. The findings elucidated that the addition of Cl- increased Cd uptake by rice roots (5.1 % ∼ 61 %), acting both directly by enhancing root morphology and indirectly through regulating of the main transporter genes of Cd. The study unveiled that Cl- addition significantly improves Cd bioavailability in roots, which was discernible through the augmentation of Cd concentration and proportion in subcellular fractions, coupled with elevated energy values in key cellular components. Moreover, Cl- addition further augmented the intricate process of Cd transport from roots to shoots (16.1- 86.7 %), which was mainly attributed to the underexpression of OsHMA3 and the decrease in the formation of sulfuhydryl substances. This research provides a comprehensive understanding of the complex mechanisms governing Cd dynamics in rice plants in the presence of Cl-. By elucidating these processes, our findings not only contribute to fundamental knowledge in plant metal uptake but also hold promising implications for mitigating Cd contamination in rice cultivation systems.
Collapse
Affiliation(s)
- Jingxia Guo
- College of Resource and Environmental Science, Soil Environmental Health and Regulation, Key Laboratory of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Chenghao Ge
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Guo Wang
- College of Resource and Environmental Science, Soil Environmental Health and Regulation, Key Laboratory of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China.
| | - Dongmei Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China.
| |
Collapse
|
2
|
Calvo Salamanca AM, Mayorga Mogollon OL, Chaali N, Ariza-Nieto C, Beltran-Medina JI, Ortiz Cuadros RE, Duran Cruz EN. ICP-OES analysis of total As and Cd in Columbian Oryza sativa L. rice. FOOD ADDITIVES & CONTAMINANTS. PART B, SURVEILLANCE 2024; 17:16-27. [PMID: 38111355 DOI: 10.1080/19393210.2023.2278805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 10/30/2023] [Indexed: 12/20/2023]
Abstract
Arsenic (As) and cadmium (Cd) are considered toxic elements, even at trace levels. Their accurate quantification in crops can be complex at low levels and due to interference with other elements. The aim of this work was to develop and validate an analytical method for As and Cd quantification in rice stem and grains from the production systems "Irrigated Rice Ecosystems" (IRE) and "Rainfed Rice Ecosystems" (RRE) in Colombia. Mineralisation was carried out by acid digestion using an open system with a heating plate. Metal detection was performed by inductively coupled plasma optical emission spectrometry (ICP-OES). Method adjustment, calibration, and validation were performed in accordance with AOAC standards, considering sensitivity, precision, accuracy, and selectivity parameters. The obtained method was applied to quantify levels in 259 rice stem and 443 grain samples from IRE and RRE.
Collapse
Affiliation(s)
- Ana María Calvo Salamanca
- Tibaitatá Research Center, Colombian Corporation for Agricultural Research-AGROSAVIA, Mosquera, Colombia
| | | | - Nesrine Chaali
- Nataima Research Center, Colombian Corporation for Agricultural Research-AGROSAVIA, Tolima, Colombia
| | - Claudia Ariza-Nieto
- Tibaitatá Research Center, Colombian Corporation for Agricultural Research-AGROSAVIA, Mosquera, Colombia
| | | | | | - Erika Natalia Duran Cruz
- Tibaitatá Research Center, Colombian Corporation for Agricultural Research-AGROSAVIA, Mosquera, Colombia
| |
Collapse
|
3
|
Ni WJ, Mubeen S, Leng XM, He C, Yang Z. Molecular-Assisted Breeding of Cadmium Pollution-Safe Cultivars. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37923701 DOI: 10.1021/acs.jafc.3c04967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
Cadmium (Cd) contamination in edible agricultural products, especially in crops intended for consumption, has raised worldwide concerns regarding food safety. Breeding of Cd pollution-safe cultivars (Cd-PSCs) is an effective solution to preventing the entry of Cd into the food chain from contaminated agricultural soil. Molecular-assisted breeding methods, based on molecular mechanisms for cultivar-dependent Cd accumulation and bioinformatic tools, have been developed to accelerate and facilitate the breeding of Cd-PSCs. This review summarizes the recent progress in the research of the low Cd accumulation traits of Cd-PSCs in different crops. Furthermore, the application of molecular-assisted breeding methods, including transgenic approaches, genome editing, marker-assisted selection, whole genome-wide association analysis, and transcriptome, has been highlighted to outline the breeding of Cd-PSCs by identifying critical genes and molecular biomarkers. This review provides a comprehensive overview of the development of Cd-PSCs and the potential future for breeding Cd-PSC using modern molecular technologies.
Collapse
Affiliation(s)
- Wen-Juan Ni
- School of Life Science, Sun Yat-sen University, Guangzhou 510275, China
- School of Basic Medicine, Gannan Medical University, Ganzhou 341000, China
| | - Samavia Mubeen
- School of Life Science, Sun Yat-sen University, Guangzhou 510275, China
| | - Xiao-Min Leng
- School of Basic Medicine, Gannan Medical University, Ganzhou 341000, China
| | - Chuntao He
- School of Life Science, Sun Yat-sen University, Guangzhou 510275, China
- School of Agriculture, Sun Yat-sen University, Guangzhou 510275, China
| | - Zhongyi Yang
- School of Life Science, Sun Yat-sen University, Guangzhou 510275, China
| |
Collapse
|
4
|
Li Y, Xu R, Ma C, Yu J, Lei S, Han Q, Wang H. Potential functions of engineered nanomaterials in cadmium remediation in soil-plant system: A review. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 336:122340. [PMID: 37562530 DOI: 10.1016/j.envpol.2023.122340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 07/21/2023] [Accepted: 08/07/2023] [Indexed: 08/12/2023]
Abstract
Soil cadmium (Cd) contamination is a global environmental issue facing agriculture. Under certain conditions, the stable Cd that bound to soil particles tend to be remobilized and absorbed into plants, which is seriously toxic to plant growth and threat food safety. Engineering nanomaterials (ENMs) has attracted increasing attentions in the remediation of Cd pollution in soil-plant system due to their excellent properties with nano-scale size. Herein, this article firstly systematically summarized Cd transformation in soil, transport in soil-plant system, and the toxic effects in plants, following which the functions of ENMs in these processes to remediate Cd pollution are comprehensively reviewed, including immobilization of Cd in soil, inhibition in Cd uptake, transport, and accumulation, as well as physiological detoxication to Cd stress. Finally, some issues to be further studied were raised to promote nano-remediation technology in the environment. This review provides a significant reference for the practical application of ENMs in remediation of Cd pollution in soil, and contributes to sustainable development of agriculture.
Collapse
Affiliation(s)
- Yadong Li
- Hebei Key Laboratory of Close-to-Nature Restoration Technology of Wetlands, School of Eco-Environment, Hebei University, Baoding, 071002, China; Institute of Xiong'an New Area, Hebei University, Baoding, 071002, China
| | - Ronghua Xu
- Hebei Key Laboratory of Close-to-Nature Restoration Technology of Wetlands, School of Eco-Environment, Hebei University, Baoding, 071002, China; Institute of Xiong'an New Area, Hebei University, Baoding, 071002, China
| | - Congli Ma
- Hebei Key Laboratory of Close-to-Nature Restoration Technology of Wetlands, School of Eco-Environment, Hebei University, Baoding, 071002, China; Institute of Xiong'an New Area, Hebei University, Baoding, 071002, China
| | - Jie Yu
- Hebei Key Laboratory of Close-to-Nature Restoration Technology of Wetlands, School of Eco-Environment, Hebei University, Baoding, 071002, China; Institute of Xiong'an New Area, Hebei University, Baoding, 071002, China
| | - Shang Lei
- Hebei Key Laboratory of Close-to-Nature Restoration Technology of Wetlands, School of Eco-Environment, Hebei University, Baoding, 071002, China; Institute of Xiong'an New Area, Hebei University, Baoding, 071002, China
| | - Qianying Han
- Hebei Key Laboratory of Close-to-Nature Restoration Technology of Wetlands, School of Eco-Environment, Hebei University, Baoding, 071002, China; Institute of Xiong'an New Area, Hebei University, Baoding, 071002, China
| | - Hongjie Wang
- Hebei Key Laboratory of Close-to-Nature Restoration Technology of Wetlands, School of Eco-Environment, Hebei University, Baoding, 071002, China; College of Life Science, Hebei University, Baoding, 071002, China; Institute of Xiong'an New Area, Hebei University, Baoding, 071002, China.
| |
Collapse
|
5
|
Xiao A, Chi Y, Huang L, Li WC, Ye Z. Effects of cultivar, water condition and their interactions on Cd accumulation in rice grains. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 262:115168. [PMID: 37352585 DOI: 10.1016/j.ecoenv.2023.115168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 05/17/2023] [Accepted: 06/18/2023] [Indexed: 06/25/2023]
Abstract
Using low Cd accumulation cultivars and managing field water regimes are effective measures to mitigate Cd accumulations in rice grains. However, the effect of the cultivar-water condition interaction (CWI) on grain Cd accumulations has largely been ignored. To solve this problem, pot and hydroponic experiments were conducted using 14 rice cultivars and two contrasting water conditions. The results showed that CWI significantly affected Cd concentrations in rice grains and roots, explaining 8.8% and 22.8% of the total variance, respectively. These CWI effects were derived from cultivar-dependent variations in rhizosphere soil properties [Eh, pH and available Cd associated with root radial oxygen loss (ROL)] and root Cd uptake. In this context, cultivar HH61 exhibited low, stable Cd accumulations, owing to its stably lower translocation rate, root Cd uptake ability and available Cd in its rhizosphere than the other cultivars, which was induced by its lower ROL. Root-to-grain Cd translocation rates were vital in determining Cd accumulations in grain of different cultivars but were independent from CWI. These results indicated that CWI could play an important role in Cd accumulation in rice while stable low-Cd cultivar should possess low ROL under flooding and low root-to-grain Cd translocation rate. The results will provide novel theoretical basis for cultivar selection and hence benefit the extensive use of low-accumulation cultivars and public health.
Collapse
Affiliation(s)
- Anwen Xiao
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China; Department of Science and Environmental Studies, The Education University of Hong Kong, Hong Kong Special Administrative Region of China
| | - Yihan Chi
- School of Life Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Lu Huang
- School of Life Sciences, Sun Yat-sen University, Guangzhou 510006, China; Guangxi Colleges and Universities Key Laboratory of Environmental-friendly Materials and New Technology for Carbon Neutralization, Guangxi Key Laboratory of Advanced Structural Materials and Carbon Neutralization, School of Materials and Environment, Guangxi Minzu University, Nanning 530105, China
| | - Wai Chin Li
- Department of Science and Environmental Studies, The Education University of Hong Kong, Hong Kong Special Administrative Region of China.
| | - Zhihong Ye
- School of Life Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| |
Collapse
|
6
|
Wang Z, Liu W, Zhang C, Liu X, Liang X, Liu R, Zhao Y. Mechanisms of S cooperating with Fe and Mn to regulate the conversion of Cd and Cu during soil redox process revealed by LDHs-DGT technology. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 867:161431. [PMID: 36626998 DOI: 10.1016/j.scitotenv.2023.161431] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 12/07/2022] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
The activity changes of Cd and Cu in paddy field were strongly influenced by the transformation of S, Fe and Mn species. However, in the process of soil redox, how S cooperates with Fe/Mn to regulate the law and mechanism of Cd and Cu speciation transformation still needs to be studied. In this study, we used DGT technology based on layer double hydroxides (LDHs) combined with pore water sampling to investigate soil redox changes, rice growth, and the effects of different forms of sulfur (S0, SO42-) on soil Cd and Cu activities. The results showed that the concentrations of CDGT-Cd and Cu in the soil decreased rapidly in the anaerobic stage, but increased slowly in the oxidative stage. Multiple regression analysis showed that the changes of Cu and Cd concentrations mainly depended on the changes of Fe/Mn morphology. Sulfur treatment promoted the dissolution of Fe/Mn oxides in the short term (<48 h), and the activities of CDGT-Fe, Mn, and Cd increased simultaneously, but CDGT-Cu was not affected. However, after long-term anaerobic conditions (>10 d), sulfur addition reduced the activities of CDGT-Cd and Cu, and decreased the uptake of Cd and Cu by rice. During sulfate reduction, the sulfur addition treatment group resulted in a 24.5-50.2 % decrease in CDGT-Fe, indicating that sulfur addition may delay the release of Cd and Cu after rice planting by promoting the formation of FeS/FeS2. In addition, in the anaerobic stage, Cu formed sulfide before Cd and was fixed, and the higher thermodynamic stability of CuS would promote the dissolution of CdS in the oxidation stage. Overall, soil flooding with sulfur to enhance the generation of metal sulfides and secondary iron ores provides an opportunity to use sulfur as an environmentally friendly modifier to coordinate Fe, Mn to improve heavy metal-contaminated soils.
Collapse
Affiliation(s)
- Zhen Wang
- Key Laboratory for Environmental Factors Control of Agro-product Quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Wenjing Liu
- Key Laboratory for Environmental Factors Control of Agro-product Quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Chuangchuang Zhang
- Key Laboratory for Environmental Factors Control of Agro-product Quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Xiaowei Liu
- Key Laboratory for Environmental Factors Control of Agro-product Quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Xuefeng Liang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Rongle Liu
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Yujie Zhao
- Key Laboratory for Environmental Factors Control of Agro-product Quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China.
| |
Collapse
|
7
|
Guo Y, Xiao Q, Zhao X, Wu Z, Dai Z, Zhang M, Qiu C, Long S, Wang Y. Phytoremediation with kenaf (Hibiscus cannabinus L.) for cadmium-contaminated paddy soil in southern China: translocation, uptake, and assessment of cultivars. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:1244-1252. [PMID: 35913693 DOI: 10.1007/s11356-022-22111-y] [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: 07/29/2021] [Accepted: 07/15/2022] [Indexed: 06/15/2023]
Abstract
Kenaf (Hibiscus cannabinus L.) is suitable for growing in heavy metal-polluted soil for non-food purposes and can be used as a potential crop to remediate heavy metal-contaminated soil. The main objective of this study was to investigate kenaf phytoextraction of cadmium (Cd), including uptake, translocation, and accumulation differences in tissues among kenaf cultivars. A field experiment was conducted in a Cd contaminated paddy field in southern China area with 13 kenaf cultivars in 2015 and 2016. Agronomic performance, Cd concentrations in plant tissues (root, xylem, and phloem), and biomass of different tissues of each cultivar were measured and evaluated. Significant differences in Cd concentrations and accumulation among tissues and cultivars were observed. The phloem had the highest Cd accumulation and transfer capability compared with the roots and xylem. Approximately 35 ~ 65 g of Cd could be taken up by the aerial parts of different kenaf cultivars within every hectare of soil. The percentage of Cd uptake by the phloem ranged from 47 to 61% and by the xylem ranged from 38 to 53%. By evaluating the agronomic traits and Cd bioaccumulation capacity, Fuhong 952, Fuhong 992, and Fuhong R1 were regarded as Cd accumulators for the phytoremediation of Cd-contaminated soil. Our study clearly demonstrated that a significant level of Cd in the soil was taken up through the phytoremediation with kenaf. In addition, harmless utilization of kenaf planting in Cd-contaminated paddy soil was discussed.
Collapse
Affiliation(s)
- Yuan Guo
- Institute of Bast Fiber Crops and Center for Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, China
| | - Qingmei Xiao
- Institute of Bast Fiber Crops and Center for Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, China
| | - Xinlin Zhao
- Institute of Bast Fiber Crops and Center for Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, China
| | - Zhimin Wu
- Institute of Bast Fiber Crops and Center for Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, China
| | - Zhigang Dai
- Institute of Bast Fiber Crops and Center for Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, China
| | - Minji Zhang
- Shanghai Zhongwei Biochemistry Co., Ltd, Shanghai, 201203, China
| | - Caisheng Qiu
- Institute of Bast Fiber Crops and Center for Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, China
| | - Songhua Long
- Institute of Bast Fiber Crops and Center for Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, China
| | - Yufu Wang
- Institute of Bast Fiber Crops and Center for Southern Economic Crops, Chinese Academy of Agricultural Sciences, Changsha, 410205, Hunan, China.
| |
Collapse
|
8
|
Guo J, Chen M, Huang Y, Xie S, Hu C, Xu B, Wang G. Understanding the mechanisms of zeolite in inhibiting Pb accumulation in different rice cultivars (Oryza sativa). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:80312-80322. [PMID: 35716307 DOI: 10.1007/s11356-022-21331-6] [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: 01/13/2022] [Accepted: 06/02/2022] [Indexed: 06/15/2023]
Abstract
Zeolite is one of the potential passivating amendments for the immobilization of lead (Pb) in contaminated farmland soils. In this study, pot experiments were carried out to investigate the effects and the mechanisms of zeolite on Pb accumulation in two rice cultivars grown in a slightly Pb-contaminated soil. Results showed that Pb content in grains of Zheyou 18 (ZY-18) decreased by the addition of 6 g zeolite kg-1 soil (E6), which can be attributed to the reduction in soil Pb availability, dissolved organic carbon (DOC), water-soluble iron (Fe) and manganese (Mn), and the transfer factor from soil to grain (TFsoil-grain). These reductions were mainly resulting from the significant increase in soil pH, glutathione (GSH), phytochelatins (PCs), and non-protein (NPT) content in rice root, and the decrease in soil redox potential (Eh), due to zeolite addition. Pb content in brown rice of DL-5 was not significantly affected with E6 treatment, whereas it was raised by applying 12 g zeolite kg-1 soil (E12). The increase of Pb content of Donglian 5 (DL-5) grains with E12 treatment can be attributed to more Pb uptake by the root, higher Pb transfer factors (TFs) between various parts of rice, and significant decrease in GSH, PCs, and NPT contents in the root. It is concluded that a suitable rate of zeolite addition can immobilize Pb in slightly Pb-contaminated acidic soil. However, the final immobilization effect also depends on rice cultivars.
Collapse
Affiliation(s)
- Jingxia Guo
- College of Resource and Environmental Science, Soil Environmental Health and Regulation, Key Laboratory of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, 350002, People's Republic of China
| | - Miaofen Chen
- College of Resource and Environmental Science, Soil Environmental Health and Regulation, Key Laboratory of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, 350002, People's Republic of China
| | - Yongxin Huang
- College of Resource and Environmental Science, Soil Environmental Health and Regulation, Key Laboratory of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, 350002, People's Republic of China
| | - Shengcong Xie
- College of Resource and Environmental Science, Soil Environmental Health and Regulation, Key Laboratory of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, 350002, People's Republic of China
| | - Cong Hu
- College of Resource and Environmental Science, Soil Environmental Health and Regulation, Key Laboratory of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, 350002, People's Republic of China
| | - Bo Xu
- College of Resource and Environmental Science, Soil Environmental Health and Regulation, Key Laboratory of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, 350002, People's Republic of China
| | - Guo Wang
- College of Resource and Environmental Science, Soil Environmental Health and Regulation, Key Laboratory of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, 350002, People's Republic of China.
| |
Collapse
|
9
|
Qin S, Xu Y, Nie Z, Liu H, Gao W, Li C, Zhao P. Metabolomic and antioxidant enzyme activity changes in response to cadmium stress under boron application of wheat (Triticum aestivum). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:34701-34713. [PMID: 35040057 DOI: 10.1007/s11356-021-17123-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 10/15/2021] [Indexed: 06/14/2023]
Abstract
Boron (B) has previously been shown to inhibit cadmium (Cd) uptake in wheat. Here, we investigated the physiological response of external B application (C for no B added, B for B added, B+Cd for B and Cd added, B/Cd for B 24 h pretreatment before Cd added, B and Cd were 46.2 μM and 5 μM, respectively) on wheat growth under Cd stress. The results showed that the wheat growth was significantly weaker under Cd treatment, while B application did not significantly improve the wheat growth under Cd stress. However, B application decreased Cd concentrations and malondialdehyde (MDA) concentrations of shoot and root. The key enzyme activities including superoxide dismutase (SOD) and peroxidase (POD) significantly increased under Cd treatments while decreased under B treatments. Further, a total of 198, 680 and 204 of the differential metabolites were isolated between B and C treatment, Cd and C treatment and B+Cd and Cd treatment, respectively. The metabolites with up-accumulation in B application (B+Cd) roots were mainly galactaric acid, citric acid, N6-galacturonyl-L-lysine, D-glucose, while the metabolites with down-accumulation were mainly threoninyl-tryptophan and C16 sphinganine. The differential metabolic pathways were mainly concentrated in linoleic acid metabolism, galactose metabolism, sphingolipid metabolism, glycolysis/gluconeogenesis, propanoate metabolism in diabetic complications between B+Cd treatment and B treatment. The results indicate that B alleviates Cd toxicity in winter wheat by inhibiting Cd uptake, increasing antioxidant enzyme activity and changing metabolites.
Collapse
Affiliation(s)
- Shiyu Qin
- College of Resources and Environment, Henan Agricultural University, No. 63, Nongye Road, Jinshui District, Zhengzhou, 450002, Henan, China
- Key Laboratory of Soil Pollution and Remediation of Henan Province, Zhengzhou, 450002, China
| | - Yafang Xu
- College of Resources and Environment, Henan Agricultural University, No. 63, Nongye Road, Jinshui District, Zhengzhou, 450002, Henan, China
- Key Laboratory of Soil Pollution and Remediation of Henan Province, Zhengzhou, 450002, China
| | - Zhaojun Nie
- College of Resources and Environment, Henan Agricultural University, No. 63, Nongye Road, Jinshui District, Zhengzhou, 450002, Henan, China
- Key Laboratory of Soil Pollution and Remediation of Henan Province, Zhengzhou, 450002, China
| | - Hongen Liu
- College of Resources and Environment, Henan Agricultural University, No. 63, Nongye Road, Jinshui District, Zhengzhou, 450002, Henan, China
- Key Laboratory of Soil Pollution and Remediation of Henan Province, Zhengzhou, 450002, China
| | - Wei Gao
- College of Resources and Environment, Henan Agricultural University, No. 63, Nongye Road, Jinshui District, Zhengzhou, 450002, Henan, China
- Key Laboratory of Soil Pollution and Remediation of Henan Province, Zhengzhou, 450002, China
| | - Chang Li
- College of Resources and Environment, Henan Agricultural University, No. 63, Nongye Road, Jinshui District, Zhengzhou, 450002, Henan, China
- Key Laboratory of Soil Pollution and Remediation of Henan Province, Zhengzhou, 450002, China
| | - Peng Zhao
- College of Resources and Environment, Henan Agricultural University, No. 63, Nongye Road, Jinshui District, Zhengzhou, 450002, Henan, China.
- Key Laboratory of Soil Pollution and Remediation of Henan Province, Zhengzhou, 450002, China.
| |
Collapse
|
10
|
Wang Z, Liu W, Liu J, Liu X, Liu R, Zhao Y. Differences and mechanism of dynamic changes of Cd activity regulated by polymorphous sulfur in paddy soil. CHEMOSPHERE 2022; 291:133055. [PMID: 34826445 DOI: 10.1016/j.chemosphere.2021.133055] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 11/12/2021] [Accepted: 11/22/2021] [Indexed: 06/13/2023]
Abstract
Sulfur (S) can decrease the bioavailability of Cd in paddy soil, and therefore reduce Cd uptake by rice. However, the dynamic influence mechanism of different forms of sulfur on the bioavailability of cadmium in soil has not been systematically studied. In this study, we used Diffusive gradients in thin films (DGT) technology and soil pore water sampling technology to investigate the effects of different types of S application on the bioavailability of Cd. The three forms of S are elemental sulfur (S0), sodium sulfate (SO42-), and mercapto-grafted palygorskite (MP), which have been treated in six ways according to CK, SL, SH, SO42L, SO42H, MP (L and H are the low and high levels of treatments). The results showed that soluble and labile Cd concentration was quickly fixed after flooding but activated after rice transplantation. Both MP and SL treatments increased the content of dissolved organic carbon (DOC) and significantly reduced the accumulation of Cd in roots and grains. The Cd content of roots treated with MP was only 0.50 mg kg-1, which was 77.6% lower than the Cd content in CK (2.22 mg kg-1). S promotes the reduction and dissolution of Fe, and the formation of FeS/FeS2 is also one of the reasons for the low bioavailability of Cd, while the SH treatment has a greater effect on lowering pH, so the effect of fixing Cd is not obvious. In addition, SO42- treatment delays the soil reduction process, so it cannot effectively fix Cd. At the stage of rice maturity, dissolved Cd increased in S treatment, but MP treatment did not have this phenomenon. The possible reason was the consumption of DOC or the oxidation of CdS which caused Cd to enter the soil solution. Taken together, Fe-S play a critical role in controlling the mobilization of Cd in paddy systems.
Collapse
Affiliation(s)
- Zhen Wang
- Key Laboratory for Environmental Factors Control of Agro-product Quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China
| | - Wenjing Liu
- Key Laboratory for Environmental Factors Control of Agro-product Quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China
| | - Jiang Liu
- Key Laboratory for Environmental Factors Control of Agro-product Quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China
| | - Xiaowei Liu
- Key Laboratory for Environmental Factors Control of Agro-product Quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China
| | - Rongle Liu
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China
| | - Yujie Zhao
- Key Laboratory for Environmental Factors Control of Agro-product Quality Safety, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China; Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China.
| |
Collapse
|
11
|
Guo J, Xie S, Huang Y, Chen M, Wang G. Effects and mechanisms of Cd remediation with zeolite in brown rice (Oryza sativa). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 226:112813. [PMID: 34563886 DOI: 10.1016/j.ecoenv.2021.112813] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 09/09/2021] [Accepted: 09/19/2021] [Indexed: 06/13/2023]
Abstract
The effects of zeolite amendment on the Cd absorption and accumulation of two varieties of rice, ZY-18 (Zheyou 18, hybrid indica) and DL-5 (Donglian 5, conventional indica), planted in a slightly Cd-contaminated paddy soil, and the associated mechanisms were studied based on a pot experiment. The results showed that zeolite addition significantly reduced the Cd availability in the soil by the increasing of soil pH and the Cd sorption capacity of soil, as well as the reduction of Eh, dissolved organic carbon (DOC) and the water-soluble Fe/Mn in the soil. The decrease in the amount of Fe and Cd in iron plaques on rice roots treated with zeolite resulted in the reduction of Cd uptake by rice roots. Zeolite application decreased the Cd contents in the roots, stems and leaves, and finally the brown rice through the inhibition of uptake and translocation of Cd by rice plant. The Cd concentration in rice grains of ZY-18 was more decreased than that of DL-5, which was attributed to its higher pH and lower Eh, DOC, and Cd availability in the soil, higher mounts of iron plaque and Cd in plaques on rice roots, and lower root-to-grain transfer factor (TFroot-grain) of ZY-18.
Collapse
Affiliation(s)
- Jingxia Guo
- College of Resource and Environmental Science, Soil Environmental Health and Regulation, Key Laboratory of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China
| | - Shengcong Xie
- College of Resource and Environmental Science, Soil Environmental Health and Regulation, Key Laboratory of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China
| | - Yongxin Huang
- College of Resource and Environmental Science, Soil Environmental Health and Regulation, Key Laboratory of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China
| | - Miaofen Chen
- College of Resource and Environmental Science, Soil Environmental Health and Regulation, Key Laboratory of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China
| | - Guo Wang
- College of Resource and Environmental Science, Soil Environmental Health and Regulation, Key Laboratory of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China.
| |
Collapse
|
12
|
Kang Z, Gong M, Li Y, Chen W, Yang Y, Qin J, Li H. Low Cd-accumulating rice intercropping with Sesbania cannabina L. reduces grain Cd while promoting phytoremediation of Cd-contaminated soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 800:149600. [PMID: 34426335 DOI: 10.1016/j.scitotenv.2021.149600] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 08/06/2021] [Accepted: 08/08/2021] [Indexed: 06/13/2023]
Abstract
Paddy field pollution with Cd has become a serious problem and poses threat to public health. Intercropping is new good agricultural practice for phytoremediation in Cd contaminated soil. Field and pot experiments were conducted to examine the effects of intercropping low Cd-accumulating rice with Sesbania cannabina on plant growth, uptake of Cd by the intercropping system, and rhizosphere microecology, and to evaluate the potential remediation of Cd contaminated soil and safety production of rice. The results of in the field experiment show that, in intercropping system, the concentration of Cd in the grain of rice (0.18 mg kg-1) was below the threshold level permitted by the National Food Safety Standard of China (GB 2762-2017, 0.20 mg kg-1). Furthermore, the yield per plant of rice in intercropping system significantly (P < 0.05) increased by 19.71%. At the same time, the bio-concentration amount (BCA) of Cd per plant of Sesbania cannabina in intercropping system significantly (P < 0.05) increased by 46.15%. The metal removal equivalent ratio (MRER) of Cd was 1.11, indicating that the intercropping system had advantage in Cd removal. In the pot experiment, the rice intercropped with Sesbania cannabina under no barrier (IN) treatment significantly (P < 0.05) decreased the content of rhizosphere organic acids (oxalic and malic acids), and significantly (P < 0.05) increased the rhizosphere pH value and total iron plaque concentration on the root surface compared to the intercropping with plastic barrier (IN+P) treatment, which could significantly (P < 0.05) decreased the available Cd content in rhizosphere soil and the accumulation of Cd in rice organs. With this study we demonstrated that lower rhizosphere organic acids and higher iron plaque can obstruct and decreased the Cd absorbed by rice in a rice-Sesbania cannabina intercropping system. We conclude that intercropping rice with Sesbania cannabina is a promising and cost-effective agricultural practice for safe crop production and for phytoremediation in Cd-contaminated paddy soil.
Collapse
Affiliation(s)
- Zhiming Kang
- College of Natural Resources and Environment, South China Agricultural University / Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of the People's Republic of China, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture / Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou 510642, China
| | - Maojian Gong
- College of Natural Resources and Environment, South China Agricultural University / Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of the People's Republic of China, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture / Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou 510642, China
| | - Yinshi Li
- College of Natural Resources and Environment, South China Agricultural University / Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of the People's Republic of China, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture / Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou 510642, China
| | - Weizhen Chen
- College of Natural Resources and Environment, South China Agricultural University / Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of the People's Republic of China, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture / Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou 510642, China
| | - Yanan Yang
- College of Natural Resources and Environment, South China Agricultural University / Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of the People's Republic of China, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture / Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou 510642, China
| | - Junhao Qin
- College of Natural Resources and Environment, South China Agricultural University / Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of the People's Republic of China, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture / Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou 510642, China
| | - Huashou Li
- College of Natural Resources and Environment, South China Agricultural University / Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of the People's Republic of China, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture / Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou 510642, China.
| |
Collapse
|
13
|
Yadav V, Arif N, Singh VP, Guerriero G, Berni R, Shinde S, Raturi G, Deshmukh R, Sandalio LM, Chauhan DK, Tripathi DK. Histochemical Techniques in Plant Science: More Than Meets the Eye. PLANT & CELL PHYSIOLOGY 2021; 62:1509-1527. [PMID: 33594421 DOI: 10.1093/pcp/pcab022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 01/31/2021] [Indexed: 05/12/2023]
Abstract
Histochemistry is an essential analytical tool interfacing extensively with plant science. The literature is indeed constellated with examples showing its use to decipher specific physiological and developmental processes, as well as to study plant cell structures. Plant cell structures are translucent unless they are stained. Histochemistry allows the identification and localization, at the cellular level, of biomolecules and organelles in different types of cells and tissues, based on the use of specific staining reactions and imaging. Histochemical techniques are also widely used for the in vivo localization of promoters in specific tissues, as well as to identify specific cell wall components such as lignin and polysaccharides. Histochemistry also enables the study of plant reactions to environmental constraints, e.g. the production of reactive oxygen species (ROS) can be traced by applying histochemical staining techniques. The possibility of detecting ROS and localizing them at the cellular level is vital in establishing the mechanisms involved in the sensitivity and tolerance to different stress conditions in plants. This review comprehensively highlights the additional value of histochemistry as a complementary technique to high-throughput approaches for the study of the plant response to environmental constraints. Moreover, here we have provided an extensive survey of the available plant histochemical staining methods used for the localization of metals, minerals, secondary metabolites, cell wall components, and the detection of ROS production in plant cells. The use of recent technological advances like CRISPR/Cas9-based genome-editing for histological application is also addressed. This review also surveys the available literature data on histochemical techniques used to study the response of plants to abiotic stresses and to identify the effects at the tissue and cell levels.
Collapse
Affiliation(s)
- Vaishali Yadav
- D D Pant Interdisciplinary Research Laboratory, Department of Botany, University of Allahabad, Prayagraj 211002, India
| | - Namira Arif
- D D Pant Interdisciplinary Research Laboratory, Department of Botany, University of Allahabad, Prayagraj 211002, India
| | - Vijay Pratap Singh
- Plant Physiology Laboratory, Department of Botany, C.M.P. Degree College, A Constituent Post Graduate College of University of Allahabad, Prayagraj 211002, India
| | - Gea Guerriero
- Environmental Research and Innovation Department, Luxembourg Institute of Science and Technology, Hautcharage, Luxembourg
| | - Roberto Berni
- TERRA Teaching and Research Center, Gembloux Agro-Bio Tech, University of Liège, Gembloux 5030, Belgium
| | - Suhas Shinde
- Department of Biology and Gus R. Douglass Institute, West Virginia State University, Institute, WV 25112, USA
| | - Gaurav Raturi
- Department of Agri-Biotechnology, National Agri-Food Biotechnology Institute (NABI), Mohali, India
| | - Rupesh Deshmukh
- Department of Agri-Biotechnology, National Agri-Food Biotechnology Institute (NABI), Mohali, India
| | - Luisa M Sandalio
- Department of Biochemistry, Cellular and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, Profesor Albareda 1, Granada 18008, Spain
| | - Devendra Kumar Chauhan
- D D Pant Interdisciplinary Research Laboratory, Department of Botany, University of Allahabad, Prayagraj 211002, India
| | - Durgesh Kumar Tripathi
- Amity Institute of Organic Agriculture, Amity University Uttar Pradesh, I 2 Block, 5th Floor, AUUP Campus Sector-125, Noida 201313, India
| |
Collapse
|
14
|
Tran TAT, Dinh QT, Zhou F, Zhai H, Xue M, Du Z, Bañuelos GS, Liang D. Mechanisms underlying mercury detoxification in soil-plant systems after selenium application: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:46852-46876. [PMID: 34254235 DOI: 10.1007/s11356-021-15048-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 06/17/2021] [Indexed: 05/12/2023]
Abstract
Feasible countermeasures to mitigate mercury (Hg) accumulation and its deleterious effects on crops are urgently needed worldwide. Selenium (Se) fertilizer application is a cost-effective strategy to reduce Hg concentrations, promote agro-environmental sustainability and food safety, and decrease the public health risk posed by Hg-contaminated soils and its accumulation in food crops. This holistic review focuses on the processes and detoxification mechanisms of Hg in whole soil-plant systems after Se application. The reduction of Hg bioavailability in soil, the formation of inert HgSe or/and HgSe-containing proteinaceous complexes in the rhizosphere and/or roots, and the reduction of plant root uptake and translocation of Hg in plant after Se application are systemically discussed. In addition, the positive responses in plant physiological and biochemical processes to Se application under Hg stress are presented to show the possible mechanisms for protecting the plant. However, application of high levels Se showed synergistic toxic effect with Hg and inhibited plant growth. The effectiveness of Se application methods, rates, and species on Hg detoxification is compared. This review provides a good approach for plant production in Hg-contaminated areas to meet food security demands and reduce the public health risk.
Collapse
Affiliation(s)
- Thi Anh Thu Tran
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi, China
- Faculty of Natural Resources and Environmental Management, Thu Dau Mot University, Thu Dau Mot City, Binh Duong, Vietnam
| | - Quang Toan Dinh
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi, China
- Department of Natural Resources and Environment of Thanh Hoa, Thanh Hoa, 400570, Vietnam
| | - Fei Zhou
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Hui Zhai
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Mingyue Xue
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Zekun Du
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Gary S Bañuelos
- USDA, Agricultural Research Service, San Joaquin Valley Agricultural Sciences Center, Parlier, CA, 93648-9757, USA
| | - Dongli Liang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi, China.
- Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture, Yangling, 712100, Shaanxi, China.
| |
Collapse
|
15
|
Huang J, Liu C, Price GW, Li Y, Wang Y. Identification of a novel heavy metal resistant Ralstonia strain and its growth response to cadmium exposure. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:125942. [PMID: 34492869 DOI: 10.1016/j.jhazmat.2021.125942] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 04/02/2021] [Accepted: 04/19/2021] [Indexed: 06/13/2023]
Abstract
A novel Ralstonia Bcul-1 strain was isolated from soil samples that was closest to Ralstonia pickettii. Broad-spectrum resistance was identified to a group of heavy metal ions and tolerance to concentrations of Cd2+ up to 400 mg L-1. Low concentrations of heavy metal ions did not have distinctive impact on heavy metal resistance genes and appeared to induce greater expression. Under exposure to Cd2+, cell wall components were significantly enhanced, and some proteins were also simultaneously expressed allowing the bacteria to adapt to the high Cd2+ living environment. The maximum removal rate of Cd2+ by the Ralstonia Bcul-1 strain was 78.97% in the culture medium supplemented with 100 mg L-1 Cd2+. Ralstonia Bcul-1 was able to survive and grow in a low nutrient and cadmium contaminated (0.42 mg kg-1) vegetable soil, and the cadmium removal rate was up to 65.76% in 9th growth. Ralstonia Bcul-1 mixed with biochar could maintain sustainable growth of this strain in the soil up to 75 d and the adsorption efficiency of cadmium increased by 16.23-40.80% as compared to biochar application alone. Results from this work suggests that Ralstonia Bcul-1 is an ideal candidate for bioremediation of nutrient deficient heavy metal contaminated soil.
Collapse
Affiliation(s)
- Jiaqing Huang
- Agricultural Ecology Institute, Fujian Academy of Agricultural Sciences (FAAS), Fuzhou 350013, China; Fujian Key Laboratory of Agricultural Ecological Process of Red Soil Mountain, Fuzhou 350013, China
| | - Cenwei Liu
- Agricultural Ecology Institute, Fujian Academy of Agricultural Sciences (FAAS), Fuzhou 350013, China; Fujian Key Laboratory of Agricultural Ecological Process of Red Soil Mountain, Fuzhou 350013, China
| | - G W Price
- Department of Engineering, Dalhousie University, Truro, NS B2N 5E3, Canada
| | - Yanchun Li
- Agricultural Ecology Institute, Fujian Academy of Agricultural Sciences (FAAS), Fuzhou 350013, China; Fujian Key Laboratory of Agricultural Ecological Process of Red Soil Mountain, Fuzhou 350013, China
| | - Yixiang Wang
- Agricultural Ecology Institute, Fujian Academy of Agricultural Sciences (FAAS), Fuzhou 350013, China; Fujian Key Laboratory of Agricultural Ecological Process of Red Soil Mountain, Fuzhou 350013, China.
| |
Collapse
|
16
|
Karalija E, Selović A, Dahija S, Demir A, Samardžić J, Vrobel O, Ćavar Zeljković S, Parić A. Use of seed priming to improve Cd accumulation and tolerance in Silene sendtneri, novel Cd hyper-accumulator. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 210:111882. [PMID: 33418153 DOI: 10.1016/j.ecoenv.2020.111882] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 12/27/2020] [Accepted: 12/28/2020] [Indexed: 05/07/2023]
Abstract
Changes in the environment as a result of industrialisation and urbanisation impact negatively on plant growth and crop production. Cadmium (Cd) is one of the most dangerous metals that enters the food chain, with toxic effects on plants and human health. This study evaluated the potential of Silene sendtneri as a novel hyperaccumulator and the role of seed priming in tolerance and accumulation rate of Cd. The effect of different priming agents on germination performance, root growth, seedling development, metal uptake and accumulation, antioxidant defences including enzymatic and non-enzymatic antioxidants has been assessed. Seed priming using silicic acid, proline alone or in combination with salicylic acid- enhanced germination, seedling development, and root growth under Cd stress. The same priming treatments induced an increase of water content in shoots and roots when plants were exposed to Cd. The enzymatic antioxidant response was specific for the priming agent used. An increase in ferulic acid and rutin in shoots was related to the increase of Cd concentration in the medium. The concentration of malic and oxalic acid increased significantly in shoots of plants grown on high Cd concentrations compared to low Cd concentrations. Silene sendtneri can accumulate significant levels of Cd with enhanced accumulation rate and tolerance when seeds are primed. The best results are obtained by seed priming using 1% silicic acid, proline and salicylic acid.
Collapse
Affiliation(s)
- Erna Karalija
- Laboratory for Plant physiology, Faculty of Science, University of Sarajevo, Zmaja od Bosne 33-35, 71 000 Sarajevo, Bosnia and Herzegovina.
| | - Alisa Selović
- Department of Chemistry, Faculty of Science, University of Sarajevo, Zmaja od Bosne 33-35, 71 000 Sarajevo, Bosnia and Herzegovina
| | - Sabina Dahija
- Laboratory for Plant physiology, Faculty of Science, University of Sarajevo, Zmaja od Bosne 33-35, 71 000 Sarajevo, Bosnia and Herzegovina
| | - Arnela Demir
- Laboratory for Plant physiology, Faculty of Science, University of Sarajevo, Zmaja od Bosne 33-35, 71 000 Sarajevo, Bosnia and Herzegovina
| | - Jelena Samardžić
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11042 Belgrade, Serbia
| | - Ondřej Vrobel
- Centre of the Region Haná for Biotechnological and Agricultural Research, Department of Genetic Resources for Vegetables, Medicinal and Special Plants, Crop Research Institute, Šlechtitelů 29, 78371 Olomouc, Czech Republic; Centre of Region Haná for Biotechnological and Agricultural Research, Department of Phytochemistry, Palacky University, Šlechtitelů 27, 78371 Olomouc, Czech Republic
| | - Sanja Ćavar Zeljković
- Centre of the Region Haná for Biotechnological and Agricultural Research, Department of Genetic Resources for Vegetables, Medicinal and Special Plants, Crop Research Institute, Šlechtitelů 29, 78371 Olomouc, Czech Republic; Centre of Region Haná for Biotechnological and Agricultural Research, Department of Phytochemistry, Palacky University, Šlechtitelů 27, 78371 Olomouc, Czech Republic
| | - Adisa Parić
- Laboratory for Plant physiology, Faculty of Science, University of Sarajevo, Zmaja od Bosne 33-35, 71 000 Sarajevo, Bosnia and Herzegovina
| |
Collapse
|
17
|
Xu Y, Feng J, Li H. How intercropping and mixed systems reduce cadmium concentration in rice grains and improve grain yields. JOURNAL OF HAZARDOUS MATERIALS 2021; 402:123762. [PMID: 33254775 DOI: 10.1016/j.jhazmat.2020.123762] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 07/15/2020] [Accepted: 08/19/2020] [Indexed: 06/12/2023]
Abstract
Ecological theories can be applied to improve agricultural sustainability. In our study, a core hypothesis behind this claim is that "selfish behaviour" of rice cultivars results in "aversion" to a toxic substance in a multi-cropping system. We studied Changliangyou 772, a low-cadmium rice cultivar, cultivated with 11 different rice cultivars in intercropping and mixed systems. Rice cultivars with medium grain yield, ranging from 25 to 45 g plant-1, had distinctly higher yields in mixtures. Rice varieties with lower grain cadmium concentrations in monocultures had greater reductions in grain cadmium in the mixtures. In the intercropping systems, the yields of Changliangyou 772 were positively correlated with those of the neighbouring rice cultivars, while the grain cadmium showed a negative correlation with the grain cadmium of intercrops in the monocultures. The neighbouring cultivars with low grain cadmium concentrations in the intercropping showed higher cadmium concentrations in the monocultures. The intercropping and mixtures reduced the grain cadmium in two ways: 1) they increased the soil pH, resulting in lower cadmium bioavailability; and 2) they enhanced the iron plaque (Ip). However, a high Ip or cadmium concentration that was too high in the Ip weakened the Ip to block cadmium uptake by the roots.
Collapse
Affiliation(s)
- Yanggui Xu
- College of Natural Resources and Environment / Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, South China Agricultural University, Guangzhou, 510642, China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture / Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture, Guangzhou, 510642, China; School of Plant Biology, The University of Western Australia, 35 Stirling Highway, Crawley, WA, 6009, Australia
| | - Jiayi Feng
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, 510642, China
| | - Huashou Li
- College of Natural Resources and Environment / Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, South China Agricultural University, Guangzhou, 510642, China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture / Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture, Guangzhou, 510642, China.
| |
Collapse
|
18
|
Xu Y, Feng J, Li H. Water management increased rhizosphere redox potential and decreased Cd uptake in a low-Cd rice cultivar but decreased redox potential and increased Cd uptake in a high-Cd rice cultivar under intercropping. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 751:141701. [PMID: 32889460 DOI: 10.1016/j.scitotenv.2020.141701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 08/13/2020] [Accepted: 08/13/2020] [Indexed: 06/11/2023]
Abstract
Excessive Cd in crop grains is toxic to humans. We conducted a field experiment to investigate the effects of intercropping on rice yield and grain Cd content as well as a pot experiment to compare the rhizosphere redox potentials of low-Cd 'Zhuliangyou 189' and the neighboring high-Cd 'Changxianggu' that mediated Cd uptake in a flooded or a ridge-furrow system. In the field experiment, Cd removal from contaminated soil in intercropping was 1.44 times higher than that in monoculture of Zhuliangyou 189. In both Zhuliangyou 189 and Changxianggu, intercropping improved the grain yield and decreased grain Cd content. In the pot experiment, Fe plaque amount was strongly and positively correlated with bulk soil Fe(II) content, root H2O2 concentration, and Fe(II)-oxidizing ability of root bacteria but negatively correlated with Fe(II)-oxidizing ability of bulk soil bacteria and root Cd content. In Zhuliangyou 189, intercropping increased root H2O2 concentration, rhizosphere redox potential, iron plaque amount but decreased Cd bioavailability, Fe(II)-oxidizing ability of bulk soil bacteria, and organ Cd content. In the flooded system, Zhuliangyou 189 showed higher bulk soil Fe(II) content than Changxianggu. In the ridge-furrow system, ridges decreased the Fe(II)-oxidizing ability of root and bulk soil bacteria, thereby decreasing Fe plaque amount and increasing organ Cd content of rice. In both monoculture and intercropping systems, rice cultivars planted on ridges showed higher Cd bioavailability and lower bulk boil Fe(II) content than those planted in furrows.
Collapse
Affiliation(s)
- Yanggui Xu
- College of Natural Resources and Environment, South China Agricultural University, China Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of China, Guangzhou 510642, PR China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou 510642, China; School of Plant Biology, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
| | - Jiayi Feng
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
| | - Huashou Li
- College of Natural Resources and Environment, South China Agricultural University, China Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of China, Guangzhou 510642, PR China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou 510642, China.
| |
Collapse
|
19
|
Yang W, Zhou H, Gu J, Liao B, Zhang J, Wu P. Application of rapeseed residue increases soil organic matter, microbial biomass, and enzyme activity and mitigates cadmium pollution risk in paddy fields. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 264:114681. [PMID: 32387674 DOI: 10.1016/j.envpol.2020.114681] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 03/25/2020] [Accepted: 04/25/2020] [Indexed: 05/10/2023]
Abstract
Rapeseed (Brassica napus L.) is a winter oil crop and biodiesel resource that has been widely cultivated in the southern part of China. Applying rapeseed residue (RSD) to summer rice fields is a common agricultural practice under rice-rapeseed double cropping systems. However, in Cd-contaminated paddy fields, the influence mechanisms of this agricultural practice on the migration and distribution of Cd fractions in soil are not clear. Therefore, a field experiment was carried out to analyse the changes in soil pH, organic matter (OM), microbial biomass carbon (MBC) and nitrogen (MBN), enzyme activity (urease (UA), acid phosphatase (ACP), and dehydrogenase (DH)), Cd distribution fractions, and Cd concentration in rice tissues after RSD application. The results showed that RSD treatment significantly increased the soil OM and MBC concentrations and UA, ACP, and DH activities, decreased the soil acetic acid-extractable fraction of Cd (ACI-Cd), and increased the reducible fraction of Cd (Red-Cd). The formation of stable organic complexes and chelates upon application of RSD is a result of the high affinity of Cd for soil OM. The activities of soil ACP, DH and MBC can well reflect Cd ecotoxicity in soil, particularly the DH activity. In addition, RSD application was helpful in inducing iron plaque formation. The "barrier" effect of iron plaque resulted in reduced Cd accumulation in different tissues of rice. The health risk of rice consumption also decreased as a result of RSD application; it decreased by 0.89-30.0% and 24.1-51.7% in the two tested fields. Overall, the application of RSD was increased soil OM, microbial biomass, and enzyme activity, and these changes was instrumental in reduce the risk of cadmium pollution in rice fields.
Collapse
Affiliation(s)
- Wentao Yang
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, China; College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China.
| | - Hang Zhou
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China; Hunan Engineering Laboratory for Control of Rice Quality and Safety, Changsha, 410004, China.
| | - Jiaofeng Gu
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China; Hunan Engineering Laboratory for Control of Rice Quality and Safety, Changsha, 410004, China.
| | - Bohan Liao
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China; Hunan Engineering Laboratory for Control of Rice Quality and Safety, Changsha, 410004, China.
| | - Jia Zhang
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, China.
| | - Pan Wu
- College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, China; Key Laboratory of Geological Resources and Environment, Ministry of Education, Guizhou University, Guiyang, 50025, China.
| |
Collapse
|
20
|
Qi X, Tam NFY, Li WC, Ye Z. The role of root apoplastic barriers in cadmium translocation and accumulation in cultivars of rice (Oryza sativa L.) with different Cd-accumulating characteristics. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 264:114736. [PMID: 32417578 DOI: 10.1016/j.envpol.2020.114736] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 04/20/2020] [Accepted: 05/03/2020] [Indexed: 05/25/2023]
Abstract
The radial translocation of cadmium (Cd) from the root to the shoot is one of the major processes affecting Cd accumulation in rice (Oryza sativa L.) grains, but few studies have focused on Cd apoplastic transport in rice. The aim of this study was to determine how apoplastic barriers affect Cd translocation via the apoplastic pathway, Cd accumulation levels in upper parts (shoot and grains) of rice cultivars, and the possible mechanism involved. Hydroponic and soil pot trials were conducted to study the development and chemical constituents of apoplastic barriers and their permeability to bypass flow, and to determine Cd localization in the roots of rice cultivars with different Cd-accumulating characteristics. The Cd accumulation in upper parts was positively correlated with bypass flow in the root and the apparent Cd concentration in the xylem, indicating that the apoplastic pathway may play an important role in Cd root-shoot translocation in rice. Apoplastic barriers were deposited closer to the root tip and were thicker in low Cd-accumulating cultivars than in high Cd-accumulating cultivars. The amounts and rates of increase in lignin and suberin were significantly higher in ZD14 (a low Cd-accumulating cultivar) than in FYXZ (a high Cd-accumulating cultivar) under Cd stress, indicating that stronger barriers were induced by Cd in ZD14. The stronger and earlier formation of barriers in the low Cd-accumulating cultivar decreased bypass flow more efficiently, so that more Cd was retained in the root during apoplastic translocation. This was confirmed by localization analyses of Cd in root transverse sections. These results suggest that apoplastic barriers reduce Cd root-to-shoot translocation via the apoplastic pathway, leading to lower Cd accumulation in the upper parts of rice plants. Bypass flow may have the potential to be used as a rapid screening indicator for low Cd-accumulating rice cultivars.
Collapse
Affiliation(s)
- Xiaoli Qi
- School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Nora Fung-Yee Tam
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Wai Chin Li
- Department of Science and Environmental Studies, The Education University of Hong Kong, Hong Kong, China
| | - Zhihong Ye
- School of Life Sciences, Sun Yat-sen University, Guangzhou, 510006, China.
| |
Collapse
|
21
|
Deng X, Chen Y, Yang Y, Lu L, Yuan X, Zeng H, Zeng Q. Cadmium accumulation in rice (Oryza sativa L.) alleviated by basal alkaline fertilizers followed by topdressing of manganese fertilizer. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 262:114289. [PMID: 32179217 DOI: 10.1016/j.envpol.2020.114289] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 02/22/2020] [Accepted: 02/27/2020] [Indexed: 06/10/2023]
Abstract
Rice is a main source of dietary cadmium (Cd), thus, how to reduce the Cd concentration in brown rice has received extensive attention worldwide. In three acidic paddy soils slightly to moderately contaminated with Cd, a series of field experiments were conducted to evaluate the effects of different proportions of nitrogen-phosphorus-potassium (N-P-K) fertilizer (urea, calcium magnesium phosphate, and potassium carbonate, respectively) alone or coupled with a topdressing of manganese (Mn) fertilizer at the tillering stage on reducing Cd bioavailability in soil and uptake in rice. The rational application of N-P-K fertilizer not only provided the basic nutrients to promote the normal growth of rice but also increased soil pH and thereby reduced the Cd bioavailability in soil. The Mg(NO3)2-extracted Cd concentrations in the three soils were reduced by 26.46-56.53%, while TCLP-extracted Cd were reduced by 19.87-45.41%, with little influence on soil cation exchange capacity (CEC) and organic matter (OM). The application of Mn fertilizer at the tillering stage increased Mn and Cd sequestration in the iron plaque. The Mn content in iron plaque increased by 15.71-58.67% and a significant positive correlation between Cd and Mn was observed at the three sites. Collectively, this combined method of fertilization significantly reduced Cd accumulation in rice tissues, the Cd concentrations in roots of treated plants decreased by 11.18-37.78%, whereas the concentrations in straw decreased by 13.16-41.03%. Particularly to brown rice, in which accumulation decreased by 25.19-44.70%, 37.35-47.84%, and 38.00-60.88% in three typical paddy fields, but no significant effect was observed for the Cd translocation factors (TF) among rice tissues. Thus, the basal application of combined urea and alkaline inorganic fertilizers followed by topdressing of Mn fertilizer may be a promising and cost-effective tactics for the remediation of Cd-contaminated paddy soils.
Collapse
Affiliation(s)
- Xiao Deng
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, China
| | - Yixuan Chen
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, China
| | - Yang Yang
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, China; College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, China
| | - Lei Lu
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, China
| | - Xiaoqing Yuan
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, China
| | - Hongyuan Zeng
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, China; College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, China
| | - Qingru Zeng
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, China; College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, China.
| |
Collapse
|
22
|
Xu R, Li B, Xiao E, Young LY, Sun X, Kong T, Dong Y, Wang Q, Yang Z, Chen L, Sun W. Uncovering microbial responses to sharp geochemical gradients in a terrace contaminated by acid mine drainage. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 261:114226. [PMID: 32113110 DOI: 10.1016/j.envpol.2020.114226] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 01/23/2020] [Accepted: 02/16/2020] [Indexed: 05/09/2023]
Abstract
Acid mine drainage (AMD) is harmful to the environment and human health. Microorganisms-mineral interactions are responsible for AMD generation but can also remediate AMD contamination. Understanding the microbial response to AMD irrigation will reveal microbial survival strategies and provide approaches for AMD remediation. A terrace with sharp geochemical gradients caused by AMD flooding were selected to study the microbial response to changes in environmental parameters related to AMD contamination. AMD intrusion reduced soil microbial community diversity and further changed phylogenetic clustering patterns along the terrace gradient. We observed several genera seldom reported in AMD-related environments (i.e., Corynebacterium, Ochrobactrum, Natronomonas), suggesting flexible survival strategies such as nitrogen fixation, despite the poor nutritional environment. A co-occurrence network of heavily-contaminated fields was densely connected. The phyla Proteobacteria, Acidobacteria, Chloroflexi, and Euryarchaeota were all highly interconnected members, which may affect the formation of AMD. Detailed microbial response to different soil characterizations were highlighted by random forest model. Results revealed the top three parameters influencing the microbial diversity and interactions were pH, Fe(III), and sulfate. Various acidophilic Fe- and S-metabolizing bacteria were enriched in the lower fields, which were heavily contaminated by AMD, and more neutrophiles prevailed in the less-contaminated upper fields. Many indicator species in the lower fields were identified, including Desulfosporosinus, Thermogymnomonas, Corynebacterium, Shewanella, Acidiphilium, Ochrobactrum, Leptospirillum, and Allobaculum, representing acid-tolerant bacteria community in relevant environment. The detection of one known sulfate-reducing bacteria (i.e., Desulfosporosinus) suggested that biotic sulfate reduction may occur in acidic samples, which offers multiple advantages to AMD contamination treatment. Collectively, results suggested that the geochemical gradients substantially altered the soil microbiota and enriched the relevant microorganisms adapted to the different conditions. These findings provide mechanistic insights into the effects of contamination on the soil microbiota and establish a basis for in situ AMD bioremediation strategies.
Collapse
Affiliation(s)
- Rui Xu
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-Environmental Science & Technology, Guangzhou, 510650, China; National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou, 510650, China
| | - Baoqin Li
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-Environmental Science & Technology, Guangzhou, 510650, China; National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou, 510650, China
| | - Enzong Xiao
- Innovation Center and Key Laboratory of Waters Safety & Protection in the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou, 510006, China
| | - Lily Y Young
- Department of Environmental Sciences, Rutgers University, New Brunswick, 08540, USA
| | - Xiaoxu Sun
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-Environmental Science & Technology, Guangzhou, 510650, China; National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou, 510650, China
| | - Tianle Kong
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-Environmental Science & Technology, Guangzhou, 510650, China; National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou, 510650, China
| | - Yiran Dong
- School of Environmental Studies, China University of Geosciences (Wuhan), Wuhan, 430074, China
| | - Qi Wang
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-Environmental Science & Technology, Guangzhou, 510650, China; National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou, 510650, China
| | - Zhaohui Yang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
| | - Lei Chen
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-Environmental Science & Technology, Guangzhou, 510650, China; National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou, 510650, China
| | - Weimin Sun
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-Environmental Science & Technology, Guangzhou, 510650, China; National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou, 510650, China.
| |
Collapse
|
23
|
Yuan T, Gu J, Zhou H, Huang F, Yang W, Wang S, Zhang J, Huo Y, Liao B. Translocation and accumulation of cadmium and lead in the tissues of 39 rape cultivars grown in a polluted farmland. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:15888-15900. [PMID: 32100214 DOI: 10.1007/s11356-020-07697-5] [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: 09/06/2019] [Accepted: 01/09/2020] [Indexed: 06/10/2023]
Abstract
To investigate the differences in cadmium (Cd) and lead (Pb) uptake and translocation among rape cultivars and genotypes and select suitable rape cultivars for both safe production and soil remediation, a field experiment was carried out with 39 rape cultivars of three genotypes on a farmland polluted with Cd and Pb in eastern Hunan Province, China. The Cd and Pb contents in rape tissues were measured, and the amount of Cd and Pb removed was calculated. The results showed that Cd in rape plants accumulated mostly in stems, while Pb accumulated mostly in roots. The Cd accumulation in various rape tissues followed the sequence stem > root > husk > rapeseed, while the Pb accumulation followed the sequence root > stem > husk > rapeseed. The total Cd and Pb removed by planting rape were 4.50-23.6 g ha-1 and 5.85-13.7 g ha-1, respectively, and the Cd and Pb contents in rapeseeds were in the range 0.11-0.47 mg kg-1 and 0.03-0.84 mg kg-1, respectively. Only the Pb content in rapeseed of "Youyan 9" exceeded the limit of the maximum levels of contaminants in foods (GB2762-2017, Pb ≤ 0.2 mg kg-1). In this experiment, the roots of most rape cultivars showed a greater capacity for Cd transport, while the stems showed a greater capacity for Pb transport. Except for the TFstem-husk for Cd, there were no significant differences in the TFs and BAFs of 39 rape cultivars, and clear variations in Cd content were found in the stems of the three genotypes, while there was no significant difference in the Cd and Pb contents in the other tissues. In the farmland polluted with Cd and Pb, planting "Xiangzayou 695" and "Youyan 2013" not only reduced soil pollution but also allowed the production of safe rapeseed.
Collapse
Affiliation(s)
- Tengyue Yuan
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Jiaofeng Gu
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China.
| | - Hang Zhou
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China.
| | - Fang Huang
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Wenjun Yang
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Shilong Wang
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Jingyi Zhang
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Yang Huo
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China
| | - Bohan Liao
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China
| |
Collapse
|
24
|
Yin DX, Fang W, Guan DX, Williams PN, Moreno-Jimenez E, Gao Y, Zhao FJ, Ma LQ, Zhang H, Luo J. Localized Intensification of Arsenic Release within the Emergent Rice Rhizosphere. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:3138-3147. [PMID: 31968168 DOI: 10.1021/acs.est.9b04819] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Behavior of trace elements in flooded/lowland rice soils is controlled by root-zone iron oxidation. Insoluble iron species bind/capture toxic elements, i.e., arsenic. However, it was recently observed that within this territory of arsenic immobilization lies a zone of prolific iron release, accompanied by a significant flux of arsenic in close proximity to rice root apices. Questions still remain on how common this phenomenon is and whether the chemical imaging approaches or soils/cultivars used influence this event. Here, three types of ultrathin/high-resolution diffusive gradient in thin films (DGT) substrates were integrated with oxygen planar optodes in a multilayer system, providing two-dimensional mapping of solute fluxes. The three DGT approaches revealed a consistent/overlapping spatial distribution with localized flux maxima for arsenic, which occurred in all experiments, concomitant with iron mobilization. Soil/porewater microsampling within the rhizosphere revealed no significant elevation in the solid phase's total iron and arsenic concentrations between aerobic and anaerobic zones. Contrary to arsenic, phosphorus bioavailability was shown to decrease in the arsenic/iron flux maxima. Rice roots, in addition to their role in nutrient acquisition, also perform a key sensory function. Flux maxima represent a significant departure from the chemical conditions of the bulk/field environment, but our observations of a complete rhizosphere reveal a mixed mode of root-soil interactions.
Collapse
Affiliation(s)
- Dai-Xia Yin
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Wen Fang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Dong-Xing Guan
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Paul N Williams
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast BT9 5DL, Northern Ireland, United Kingdom
| | - Eduardo Moreno-Jimenez
- Department of Agricultural and Food Chemistry, Universidad Autónoma de Madrid, Madrid E-28049, Spain
| | - Yue Gao
- Analytical, Environmental and Geochemistry (AMGC), Faculty of Science, Vrije Universiteit Brussel, Pleinlaan 2, Brussels 1050, Belgium
| | - Fang-Jie Zhao
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Lena Q Ma
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China
- Soil and Water Science Department, University of Florida, Gainesville, Florida 32611, United States
| | - Hao Zhang
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, U.K
| | - Jun Luo
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China
| |
Collapse
|
25
|
Kang Z, Zhang W, Qin J, Li S, Yang X, Wei X, Li H. Yield advantage and cadmium decreasing of rice in intercropping with water spinach under moisture management. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 190:110102. [PMID: 31881403 DOI: 10.1016/j.ecoenv.2019.110102] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 12/05/2019] [Accepted: 12/18/2019] [Indexed: 06/10/2023]
Abstract
Rice (Oryza sativa L.) intercropping with water spinach (Ipomoea aquatica Forsk) is an effective agricultural practice for safe crop production and for phytoremediation in cadmium-contaminated soil. A field and pot experiment were conducted to investigate the growth and cadmium absorption of rice intercropped with water spinach under different moisture management schemes (continuous flooding, interval flooding, and 75% field capacity). In the field experiment, the concentration of Cd in the grain of rice was significantly lower in the intercropping system than that permitted by the National Food Safety Standard of China (GB 2762-2017). Furthermore, the land equivalent ratio (1.42) was higher in the rice-water spinach intercropping system, indicating a significant advantage of the intercropping system in yield. At the same time, the bio-concentration amount (BCA) of Cd of rice and water spinach in intercropping system significantly increased by 17.99% and 31.98%, respectively (P<0.05). However, the metal removal equivalent ratio (MRER) of Cd was 1.34, which showed the intercropping system of rice-water spinach had advantage in Cd removal. In the pot experiment, the total iron plaque concentration on the root surface of rice and the pH of the rhizosphere soil were higher under continuous flooding (TCF) than under the control conditions (75% field capacity, TCK), which could significantly decrease the available Cd in the rhizosphere soil and the accumulation of Cd in rice organs. So, this study demonstrated that iron plaque can obstruct and decrease the Cd absorbed by rice in a rice-water spinach intercropping system combined with water management. The intercropping rice with water spinach can achieve the goal of remediation while producing for farmland contaminated by Cd.
Collapse
Affiliation(s)
- Zhiming Kang
- College of Natural Resources and Environment, South China Agricultural University / Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of China, Guangzhou, 510642, PR China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture / Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou, 510642, China
| | - Wenyuan Zhang
- College of Natural Resources and Environment, South China Agricultural University / Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of China, Guangzhou, 510642, PR China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture / Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou, 510642, China
| | - Junhao Qin
- College of Natural Resources and Environment, South China Agricultural University / Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of China, Guangzhou, 510642, PR China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture / Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou, 510642, China
| | - Sihui Li
- College of Natural Resources and Environment, South China Agricultural University / Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of China, Guangzhou, 510642, PR China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture / Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou, 510642, China
| | - Xu Yang
- College of Natural Resources and Environment, South China Agricultural University / Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of China, Guangzhou, 510642, PR China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture / Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou, 510642, China
| | - Xin Wei
- College of Natural Resources and Environment, South China Agricultural University / Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of China, Guangzhou, 510642, PR China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture / Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou, 510642, China
| | - Huashou Li
- College of Natural Resources and Environment, South China Agricultural University / Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of China, Guangzhou, 510642, PR China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture / Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou, 510642, China.
| |
Collapse
|
26
|
Liu A, Zhou Z, Yi Y, Chen G. Transcriptome analysis reveals the roles of stem nodes in cadmium transport to rice grain. BMC Genomics 2020; 21:127. [PMID: 32028884 PMCID: PMC7003353 DOI: 10.1186/s12864-020-6474-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 01/09/2020] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Node is the central organ of transferring nutrients and ions in plants. Cadmium (Cd) induced crop pollution threatens the food safety. Breeding of low Cd accumulation cultivar is a chance to resolve this universal problem. This study was performed to identify tissue specific genes involved in Cd accumulation in different rice stem nodes. Panicle node and the first node under panicle (node I) were sampled in two rice cultivars: Xiangwanxian No. 12 (low Cd accumulation cultivar) and Yuzhenxiang (high Cd accumulation cultivar). RNA-seq analysis was performed to identify differentially expressed genes (DEGs) and microRNAs. RESULTS Xiangwanxian No. 12 had lower Cd concentration in panicle node, node I and grain compared with Yuzhenxiang, and node I had the highest Cd concentration in the two cultivars. RNA seq analysis identified 4535 DEGs and 70 miRNAs between the two cultivars. Most genesrelated to the "transporter activity", such as OsIRT1, OsNramp5, OsVIT2, OsNRT1.5A, and OsABCC1, play roles in blocking the upward transport of Cd. Among the genes related to "response to stimulus", we identified OsHSP70 and OsHSFA2d/B2c in Xiangwanxian No. 12, but not in Yuzhenxiang, were all down-regulated by Cd stimulus. The up-regulation of miRNAs (osa-miR528 and osa-miR408) in Xiangwanxian No. 12 played a potent role in lowering Cd accumulation via down regulating the expression of candidate genes, such as bZIP, ERF, MYB, SnRK1 and HSPs. CONCLUSIONS Both panicle node and node I of Xiangwanxian No. 12 played a key role in blocking the upward transportation of Cd, while node I played a critical role in Yuzhenxiang. Distinct expression patterns of various transporter genes such as OsNRT1.5A, OsNramp5, OsIRT1, OsVIT2 and OsABCC1 resulted in differential Cd accumulation in different nodes. Likewise, distinct expression patterns of these transporter genes are likely responsible for the low Cd accumulation in Xiangwanxian No. 12 cultivar. MiRNAs drove multiple transcription factors, such as OsbZIPs, OsERFs, OsMYBs, to play a role in Cd stress response.
Collapse
Affiliation(s)
- Ailing Liu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128 People’s Republic of China
| | - Zhibo Zhou
- College of Agronomy, Hunan Agricultural University, Changsha, Hunan 410128 People’s Republic of China
| | - Yake Yi
- College of Agronomy, Hunan Agricultural University, Changsha, Hunan 410128 People’s Republic of China
| | - Guanghui Chen
- College of Agronomy, Hunan Agricultural University, Changsha, Hunan 410128 People’s Republic of China
- Southern Regional Collaborative Innovation Center for Grain and Oil Crops (CICGO), Hunan Agricultural University, Changsha, 410128 People’s Republic of China
| |
Collapse
|
27
|
Feng J, Shentu J, Zhu Y, Tang C, He Y, Xu J. Crop-dependent root-microbe-soil interactions induce contrasting natural attenuation of organochlorine lindane in soils. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 257:113580. [PMID: 31753626 DOI: 10.1016/j.envpol.2019.113580] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 09/19/2019] [Accepted: 11/04/2019] [Indexed: 06/10/2023]
Abstract
Plant-specific root-microbe-soil interactions play an indisputable role in microbial adaptation to environmental stresses. However, the assembly of plant rhizosphere microbiomes and their feedbacks in modification of pollution alleviation under organochlorine stress condition is far less clear. This study examined the response of root-associated bacterial microbiomes to lindane pollution and compared the dissipation of lindane in maize-cultivated dry soils and rice-cultivated flooded soils. Results showed that lindane pollution dramatically altered the microbial structure in the rhizosphere soil of maize but had less influence on the microbial composition in flooded treatments regardless of rice growth, when the reductive dechlorination of lindane was actively coupled with natural redox processes under anaerobic conditions. After 30 days of plant growth, lindane residues dissipated much faster in anaerobic than in aerobic environments, with only 1.08 mg kg-1 lindane remaining in flooded control compared to 12.79 mg kg-1 in dry control soils. Compared to the corresponding unplanted control, maize growth significantly increased, but rice growth slightly decreased the dissipation of lindane. Our study suggests that opposite impacts would lead to the self-purification of polluted soils during the growth of xerophytic maize and hygrocolous rice. This was attributed to the contrasting belowground micro-ecological processes regarding protection of root tissues and thereby assembly of rhizosphere microbiomes shaped by the xerophytic and hygrocolous crops under different water managements, in response to lindane pollution.
Collapse
Affiliation(s)
- Jiayin Feng
- 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
| | - Jue Shentu
- 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
| | - Yanjie Zhu
- 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
| | - Caixian Tang
- Department of Animal, Plant and Soil Sciences, Centre for AgriBioscience, La Trobe University, Melbourne Campus, Bundoora, VIC 3086, Australia
| | - 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
| |
Collapse
|
28
|
Liu N, Jiang Z, Li X, Liu H, Li N, Wei S. Mitigation of rice cadmium (Cd) accumulation by joint application of organic amendments and selenium (Se) in high-Cd-contaminated soils. CHEMOSPHERE 2020; 241:125106. [PMID: 31683428 DOI: 10.1016/j.chemosphere.2019.125106] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 10/05/2019] [Accepted: 10/11/2019] [Indexed: 06/10/2023]
Abstract
A pot experiment was conducted to investigate the possible mediatory effect of organic amendments (vermicompost and biochar) and selenium (Se) on Cd bioaccumulation in both rice cultivars (high-Cd accumulation rice: Yuzhenxiang (YZX) and low-Cd accumulation rice: Changliangyou772 (CLY)) in high-Cd-contaminated soils. The results showed that Cd sensitivity and tolerance were cultivar-dependent, and grain Cd contents for CLY accorded with the Chinese national food safety standards (0.2 mg kg-1), whereas grain Cd levels for YZX were 1.4-5.8 times higher than those for CLY. Soil applications of amendments decreased grain Cd levels by 3.5%-36.9% for YZX and 36.1%-74.4% for CLY. Moreover, vermicompost (VC) was more effective in reducing Cd bioaccumulation than biochar (BC). A combination of Se and organic amendments could significantly increase grain Se contents and help further reduce grain Cd levels by 5.8%-20.8%, compared to the single organic amendments. This mitigation progress could be attributed to the changes of Cd translocation and distribution among rice tissues and the inhibition of Cd bioavailability in soil through the alteration in soil properties. Organic amendments, especially high dose (5%), increased soil pH and organic matter contents, and correspondingly decreased soil Cd bioavailability. A sequential extraction analysis suggested that organic amendments and Se facilitated the transformation of soil Cd from the bioavailable form to the immobilized Cd form, and thus decreased grain Cd levels. Hence, co-applications of organic amendments and Se in combination with low-Cd accumulation cultivar could be an effective strategy for both Se needs of humans and safe utilization of Cd polluted soil.
Collapse
Affiliation(s)
- Na Liu
- College of Resources and Environment, Department of Environment Science and Engineering, Southwest University, Chongqing, 400715, China; Chongqing Key Laboratory of Agricultural Resources and Environment, Chongqing, 400715, China; State Cultivation Base of Eco-agriculture for Southwest Mountainous Land, Southwest University, Chongqing, 400715, China
| | - Zhenmao Jiang
- College of Resources and Environment, Department of Environment Science and Engineering, Southwest University, Chongqing, 400715, China; Chongqing Key Laboratory of Agricultural Resources and Environment, Chongqing, 400715, China; State Cultivation Base of Eco-agriculture for Southwest Mountainous Land, Southwest University, Chongqing, 400715, China
| | - Xiong Li
- College of Natural Resources and Environment, Northwest A & F University, Yangling, 712100, Shaanxi, China
| | - Hanyi Liu
- College of Resources and Environment, Department of Environment Science and Engineering, Southwest University, Chongqing, 400715, China; Chongqing Key Laboratory of Agricultural Resources and Environment, Chongqing, 400715, China; State Cultivation Base of Eco-agriculture for Southwest Mountainous Land, Southwest University, Chongqing, 400715, China
| | - Na Li
- College of Resources and Environment, Department of Environment Science and Engineering, Southwest University, Chongqing, 400715, China; Chongqing Key Laboratory of Agricultural Resources and Environment, Chongqing, 400715, China; State Cultivation Base of Eco-agriculture for Southwest Mountainous Land, Southwest University, Chongqing, 400715, China
| | - Shiqiang Wei
- College of Resources and Environment, Department of Environment Science and Engineering, Southwest University, Chongqing, 400715, China; Chongqing Key Laboratory of Agricultural Resources and Environment, Chongqing, 400715, China; State Cultivation Base of Eco-agriculture for Southwest Mountainous Land, Southwest University, Chongqing, 400715, China.
| |
Collapse
|
29
|
Wang J, Li D, Lu Q, Zhang Y, Xu H, Wang X, Li Y. Effect of water-driven changes in rice rhizosphere on Cd lability in three soils with different pH. J Environ Sci (China) 2020; 87:82-92. [PMID: 31791520 DOI: 10.1016/j.jes.2019.05.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 05/15/2019] [Accepted: 05/16/2019] [Indexed: 06/10/2023]
Abstract
Pot experiments were conducted to evaluate the effect of water management, namely continuous flooding (CF), intermittent flooding (IF) and non-flooding (NF), on Cd phytoavailaility in three paddy soils that differed in pH and in Cd concentrations. Diffusive gradients in thin films (DGT) technique was employed to monitor soil labile Cd and Fe concentrations simultaneously at three growth stages (tillering, heading and mature stage) of rice. The Cd phytoavailability were generally in the order of NF > IF > CF, and higher rice Cd (over permitted level, 0.2 mg/kg) were only found in neutral and acidic soils under NF conditions. DGT measured soil labile Cd rather than total Cd was the most reliable predictor for Cd accumulation in rice. CF enhanced the formation of root plaques, which related to oxidation of large quantities of available Fe on root surfaces due to the O2 secretion of rice root. The Cd concentration in root plaques shared the same trend with DGT-Cd. Generally, root plaques would inhibit Cd uptake by rice under CF conditions, while under IF and NF conditions, root plaques act as a temporarily store of Cd, and soil labile Cd is the key factor that controls the transfer of Cd from soil to rice. The results of principle component analysis revealed that water management had the greatest effect on soil Cd lability and rice Cd in acidic soil. Thus, it is important to consider the availability of Cd and soil pH when assessing current agricultural practices of contaminated soil in China.
Collapse
Affiliation(s)
- Jinjin Wang
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China
| | - Dongqin Li
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China; Life Science and Technology School, Lingnan Normal University, Zhanjiang 524048, China
| | - Qin Lu
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China
| | - Yulong Zhang
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China
| | - Huijuan Xu
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China
| | - Xueli Wang
- College of Agriculture, Guangxi University, Nanning 530004, China
| | - Yongtao Li
- College of Natural Resources and Environment, Joint Institute for Environmental Research & Education, South China Agricultural University, Guangzhou 510642, China.
| |
Collapse
|
30
|
Chen Y, Zhu Q, Dong X, Huang W, Du C, Lu D. How Serratia marcescens HB-4 absorbs cadmium and its implication on phytoremediation. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 185:109723. [PMID: 31586845 DOI: 10.1016/j.ecoenv.2019.109723] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 09/21/2019] [Accepted: 09/24/2019] [Indexed: 05/28/2023]
Abstract
A novel strain Serratia marcescens HB-4 with high Cadmium adsorption capacity was isolated from heavy metal contaminated soil in Hunan province, China. S. marcescens HB-4 reduced the concentration of Cd present in wastewater to less than 0.1 mg/L when the inlet stream contained no higher than 5.0 mg/L Cd. After treatment, wastewater meets Integrated Wastewater Discharge Standard of China (GB8978-1996). The naturally dead S. marcescens HB-4 still maintained over 80% of its Cd adsorption capacity. Scanning electron microscope (SEM), transmission electron microscope (TEM) and energy dispersive spectroscopy (EDS) results suggested that the mechanism of Cd adsorption can be explained as the synergy of extracellular adsorption, periplasm accumulation and intracellular absorption. The size of the accumulated Cd particular is at the nanometer scale, which can be washed out by EDTA without damaging cell integrity. SDS-polyacrylamide gel electrophoresis experiment showed that the heavy metal binding protein (especially Fe binding protein), transporter, amino acid and histidine periplasmic binding proteins and oxidoreductases were responsible for Cd removal. The pot experiment of S. marcescens HB-4 combined with Houttuynia cordata to detoxify Cd contaminated soil showed that the cadmium content in the aboveground and underground parts of Houttuynia cordata increased by 34.48% and 59.13% (w/w), respectively. The cadmium accumulation in Houttuynia cordata increased by 44.27% compared with the blank group which was not combined with S. marcescens HB-4. This work demonstrates that microbial synergistic phytoremediation has a significant potential to treat heavy metal contaminated soil.
Collapse
Affiliation(s)
- Yakui Chen
- Key Lab of Industrial Biocatalysis, Ministry of Education, China; Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Qifa Zhu
- Anhui Southern Tobacco Co., Ltd., Xuancheng, Anhui Province, 242000, China
| | - Xiangzhou Dong
- Anhui Southern Tobacco Co., Ltd., Xuancheng, Anhui Province, 242000, China
| | - Weiwei Huang
- Anhui Southern Tobacco Co., Ltd., Xuancheng, Anhui Province, 242000, China
| | - Chenyu Du
- School of Applied Science, The University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK.
| | - Diannan Lu
- Key Lab of Industrial Biocatalysis, Ministry of Education, China; Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China.
| |
Collapse
|
31
|
Zhu J, Chen Y, Lv C, Wu W, Qin S. Study on optimization of removing cadmium by lactobacillus fermentation and its effect on physicochemical and quality properties of rice noodles. Food Control 2019. [DOI: 10.1016/j.foodcont.2019.106740] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
32
|
Li H, Yu Y, Guo J, Li X, Rensing C, Wang G. Dynamics of the rice rhizosphere microbial community under continuous and intermittent flooding treatment. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 249:109326. [PMID: 31421482 DOI: 10.1016/j.jenvman.2019.109326] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 07/11/2019] [Accepted: 07/28/2019] [Indexed: 06/10/2023]
Abstract
Flooding regime is an important agronomic strategy, and widely applied in heavy metal-contaminated soil for controlling heavy metal uptake through biochemical processes. However, the dynamics of the microbial community in the rhizosphere of rice under different flooding systems are not well understood. In the present study, we investigated the dynamics between the microbial community and heavy metal ions under continuous flooding (CF) and intermittent flooding (IF) conditions to decipher the relationship between microbial community and environmental factors. The results showed that, for the complex Cd, Pb, and Zn contaminated soil under CF treatment did not significantly suppress Cd uptake, but promoted Pb and Ni accumulation into the rice root. Soil pH and bio-available phosphate content appeared to be the key factors impacting heavy metal mobility. When observing the microbial community in the rhizosphere, long term flooding resulted in an abundance of Anaeromyxobactersp., Geobacter and Desulfovibrio, and the abundance of these taxa displayed a significant relationship to Pb and Zn content of rice roots. From the study, we observed that the flooding regime could have a significant impact on concentrations of Cd, Pb and Ni in rice roots, and the different richness of SRB and FeRB may contribute to uptake of these heavy metals. In future work, the impact of Fe cycling on heavy metal bioavailability in the plant rhizosphere should be investigated further.
Collapse
Affiliation(s)
- HaiLong Li
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Yong Yu
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - JingXia Guo
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Xiangzhen Li
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
| | - Christopher Rensing
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 1799 Jimei Road, Xiamen, 361021, China.
| | - Guo Wang
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| |
Collapse
|
33
|
Feng J, Xu Y, Ma B, Tang C, Brookes PC, He Y, Xu J. Assembly of root-associated microbiomes of typical rice cultivars in response to lindane pollution. ENVIRONMENT INTERNATIONAL 2019; 131:104975. [PMID: 31284116 DOI: 10.1016/j.envint.2019.104975] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 05/28/2019] [Accepted: 06/27/2019] [Indexed: 06/09/2023]
Abstract
Organochlorine pesticides have been extensively used for many years to prevent insect diseases of rice (Oryza sativa L.), but little is known about their residual impacts on the underground micro-ecology in anaerobic environment. In this glasshouse study, we characterized the lindane effects on the assembly of root-associated microbiomes of commonly used indica, japonica and hybrid rice cultivars, and their feedback in turn, in modifying lindane anaerobic dissipation during 60 days' rice production. The results showed that rice growth inhibited the anaerobic dissipation of lindane, but was not affected apparently by lindane at initial spiked concentration of 4.62 and 18.54 mg kg-1 soil. Suppressed removal of lindane in rice planted treatments as compared with that in unplanted control was likely due to inhibited reductive dechlorination induced by a comprehensive effect of radial O2 secretion of rice root and co-occurring Fe(III) reduction that consumed electron competitively in rice rhizosphere. However, the hybrid cultivar exhibited a less suppression than the conventional cultivars in high polluted soils. Bacteria was more sensitively responded to lindane pollution than fungal taxa, and Actinobacteria, Chloroflexi, Verrucomicrobia and Proteobacteria were the main different phyla between hybrid and conventional cultivars, with a more stable community structure exhibited in the hybrid rice under lindane stress. Our study highlights the assembly and variation of root-associated microbiomes in responses of lindane pollution, and suggests that hybrid rice cultivar might be most competent for cultivation in paddy fields polluted by lindane and other organochlorine pesticides, especially in the area with high residual levels.
Collapse
Affiliation(s)
- Jiayin Feng
- 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 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
| | - Bin Ma
- 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
| | - Caixian Tang
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China; Department of Animal, Plant and Soil Sciences, La Trobe University, Bundoora, Victoria 3086, Australia
| | - Philip C Brookes
- 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
| |
Collapse
|
34
|
Chen J, Zou W, Meng L, Fan X, Xu G, Ye G. Advances in the Uptake and Transport Mechanisms and QTLs Mapping of Cadmium in Rice. Int J Mol Sci 2019; 20:ijms20143417. [PMID: 31336794 PMCID: PMC6678204 DOI: 10.3390/ijms20143417] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 07/10/2019] [Accepted: 07/11/2019] [Indexed: 02/07/2023] Open
Abstract
Cadmium (Cd), as a heavy metal, presents substantial biological toxicity and has harmful effects on human health. To lower the ingress levels of human Cd, it is necessary for Cd content in food crops to be reduced, which is of considerable significance for ensuring food safety. This review will summarize the genetic traits of Cd accumulation in rice and examine the mechanism of Cd uptake and translocation in rice. The status of genes related to Cd stress and Cd accumulation in rice in recent years will be summarized, and the genes related to Cd accumulation in rice will be classified according to their functions. In addition, an overview of quantitative trait loci (QTLs) mapping populations in rice will be introduced, aiming to provide a theoretical reference for the breeding of rice varieties with low Cd accumulation. Finally, existing problems and prospects will be put forward.
Collapse
Affiliation(s)
- Jingguang Chen
- CAAS-IRRI Joint Laboratory for Genomics-Assisted Germplasm Enhancement, Agricultural Genomics Institute in Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Wenli Zou
- CAAS-IRRI Joint Laboratory for Genomics-Assisted Germplasm Enhancement, Agricultural Genomics Institute in Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Lijun Meng
- CAAS-IRRI Joint Laboratory for Genomics-Assisted Germplasm Enhancement, Agricultural Genomics Institute in Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China.
| | - Xiaorong Fan
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China.
| | - Guohua Xu
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Guoyou Ye
- CAAS-IRRI Joint Laboratory for Genomics-Assisted Germplasm Enhancement, Agricultural Genomics Institute in Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
- Strategic Innovation Platform, International Rice Research Institute, DAPO Box 7777, Metro Manila 1226, Philippines
| |
Collapse
|
35
|
Hoy KS, Uppal JS, Le XC. Editorial: Effect of root anatomy and apoplastic barrier development on cadmium uptake in rice. J Environ Sci (China) 2019; 79:361-363. [PMID: 30784460 DOI: 10.1016/j.jes.2019.02.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Revised: 07/19/2017] [Accepted: 07/20/2017] [Indexed: 05/15/2023]
Affiliation(s)
- Karen S Hoy
- Department of Chemistry, University of Alberta, Edmonton T6G 2G3, Canada
| | - Jagdeesh S Uppal
- Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton T6G 2G3, Canada
| | - X Chris Le
- Department of Chemistry, University of Alberta, Edmonton T6G 2G3, Canada; Division of Analytical and Environmental Toxicology, Department of Laboratory Medicine and Pathology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton T6G 2G3, Canada.
| |
Collapse
|
36
|
Yuan H, Sun L, Tai P, Liu W, Li X, Hao L. Effects of grafting on root-to-shoot cadmium translocation in plants of eggplant (Solanum melongena) and tomato (Solanum lycopersicum). THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 652:989-995. [PMID: 30380503 DOI: 10.1016/j.scitotenv.2018.10.129] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 10/05/2018] [Accepted: 10/10/2018] [Indexed: 05/28/2023]
Abstract
Heavy metal cadmium (Cd) pollution in farmland has become a serious threat to food security globally. In this work, a grafting technique was applied to eggplant (Solanum melongena) and tomato (Solanum lycopersicum) plants using Solanum torvum as rootstock to investigate effects of grafting on Cd accumulation in shoots. The un-grafted, self-grafted, and grafted plants were grown in soils containing 2 mg kg-1 Cd. Results showed that grafting on S. torvum could efficiently reduce Cd accumulation in leaves of eggplant and tomato, and the decrease was 89% and 72%, respectively. With S. torvum as rootstock, Cd concentrations were 1.11 mg kg-1 and 6.58 mg kg-1 in leaves of grafted eggplant and tomato, which were significantly decreased as compared with un-grafted plants (10.12 mg kg-1 and 23.19 mg kg-1, respectively, p < 0.05). In addition, Cd concentrations were 12.11 mg kg-1 and 29.47 mg kg-1 in leaves of self-grafted eggplant and tomato, respectively, which was similar to those in un-grafted eggplant, but more than those in un-grafted tomato (p < 0.05). This suggests that the S. torvum rootstock, and not the grafting operation, was responsible for efficient reduction of Cd accumulation in shoots of eggplant and tomato plants. Furthermore, total sulfur and sulfate (SO42-) concentrations analysis revealed that there was a similar trend between Cd accumulation and total sulfur or SO42- concentrations in leaves of plants tested. Additionally, a strong positive correlation between Cd accumulation and total sulfur or SO42- concentrations occurred in leaves of eggplant and tomato plants. Thus, sulfur, mainly SO42-, in leaves may play an important regulatory role in Cd accumulation of eggplant and tomato plants. This study provides the theoretical and technical support for applying grafting technique for the safe practice of farming in Cd-contaminated agricultural soil.
Collapse
Affiliation(s)
- Honghong Yuan
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lizong Sun
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Peidong Tai
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China.
| | - Wan Liu
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Xiaojun Li
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Lin Hao
- College of Life Science, Shenyang Normal University, Shenyang 110034, China
| |
Collapse
|
37
|
Huang L, Li WC, Tam NFY, Ye Z. Effects of root morphology and anatomy on cadmium uptake and translocation in rice (Oryza sativa L.). J Environ Sci (China) 2019; 75:296-306. [PMID: 30473295 DOI: 10.1016/j.jes.2018.04.005] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 04/09/2018] [Accepted: 04/09/2018] [Indexed: 05/20/2023]
Abstract
A clear description of the certain mechanisms of cadmium (Cd) uptake and translocation in rice (Oryza sativa L.) may help to reduce Cd accumulation in rice grain. Hydroponic experiments were carried out to determine the effects of cultivation conditions (aerated and stagnant) on the uptake, translocation and subcellular distribution of Cd in relation to the morphology and anatomy of roots in two rice genotypes with different Cd accumulations in grains. Marked differences in morphology and anatomy were observed between these two genotypes under different cultivation conditions. Genotypes with low Cd accumulation in grains tended to develop fewer root tips per root surface area, larger root porosity and more mature apoplastic barriers. The stagnant cultivation condition decreased the number of root tips per root surface area but increased root porosity and accelerated apoplastic barrier formation in root tissues. Correlative Cd uptake studies revealed that rice plants with fewer number of root tips per root surface area reduced root Cd uptake ability, while mature apoplastic barriers increased root Cd retention in cell walls and the symplast. Thus, the fewer number of root tips per root surface area and the earlier formation of mature apoplastic barriers led to lower Cd uptake and translocation. The results indicated that the morphology and anatomy of roots could play important roles in Cd uptake and translocation in rice, and could be influenced by both genotype and cultivation conditions. The present results would be useful in screening and planting rice plants with low Cd accumulation.
Collapse
Affiliation(s)
- Lu Huang
- School of Life Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| | - Wai Chin Li
- Department of Science and Environmental Studies, The Education University of Hong Kong, Hong Kong, China.
| | - Nora Fung Yee Tam
- State Key Laboratory in Marine Pollution, and Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Zhihong Ye
- School of Life Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| |
Collapse
|
38
|
Ullah S, Mahmood T, Iqbal Z, Naeem A, Ali R, Mahmood S. Phytoremediative potential of salt-tolerant grass species for cadmium and lead under contaminated nutrient solution. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2019; 21:1012-1018. [PMID: 31016987 DOI: 10.1080/15226514.2019.1594683] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Phytoremediation of heavy metal contaminated soils represents a promising technique and salt-tolerant hyperaccumulators for multiple metals are the need of time. Therefore, phytoremediation potential of four salt-tolerant grass species [Dhab (Desmostachya bipinnata), Kallar (Leptochloa fusca), Para (Brachiaria mutica) and Sporobolus (Sporobolus arabicus Boiss)] was evaluated for cadmium (Cd) and lead (Pb) in a hydroponic study. The plants were harvested after a growth period of 3 months in a nutrient solution containing different levels of Cd (0, 5, and 25 mg L-1) and Pb (0, 25, and 125 mg L-1). Results indicated that Dhab grass showed the highest root and shoot dry matter yield followed by Para, Kallar and Sporobolus grass irrespective of metal or its level under which they were grown. All the grass species showed considerable Cd-accumulating potential with an accumulation of >150 mg kg-1of shoot dry matter at a higher level of Cd-contamination (25 mg L-1). While in case of shoot Pb-accumulation only Para grass performed well and accumulated Pb >1000 mg kg-1 of shoot dry matter at the higher level of Pb-contamination (125 mg L-1). Moreover, Para and Dhab grasses performed better for shoot Cd-uptake, while only Para grass showed promising shoot Pb uptake potential. In conclusion, these grass species could be penitentially used for phytoremediation of salt-affected Cd and Pb contaminated soils.
Collapse
Affiliation(s)
- Sana Ullah
- a Soil and Environmental Sciences Division, Nuclear Institute for Agriculture and Biology (NIAB) , Faisalabad , Pakistan
| | - Tariq Mahmood
- a Soil and Environmental Sciences Division, Nuclear Institute for Agriculture and Biology (NIAB) , Faisalabad , Pakistan
| | - Zafar Iqbal
- a Soil and Environmental Sciences Division, Nuclear Institute for Agriculture and Biology (NIAB) , Faisalabad , Pakistan
| | - Asif Naeem
- a Soil and Environmental Sciences Division, Nuclear Institute for Agriculture and Biology (NIAB) , Faisalabad , Pakistan
| | - Rehmat Ali
- a Soil and Environmental Sciences Division, Nuclear Institute for Agriculture and Biology (NIAB) , Faisalabad , Pakistan
| | - Sajid Mahmood
- a Soil and Environmental Sciences Division, Nuclear Institute for Agriculture and Biology (NIAB) , Faisalabad , Pakistan
| |
Collapse
|
39
|
Duan MM, Wang S, Huang DY, Zhu QH, Liu SL, Zhang Q, Zhu HH, Xu C. Effectiveness of simultaneous applications of lime and zinc/iron foliar sprays to minimize cadmium accumulation in rice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 165:510-515. [PMID: 30223163 DOI: 10.1016/j.ecoenv.2018.09.037] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 09/05/2018] [Accepted: 09/06/2018] [Indexed: 06/08/2023]
Abstract
Due to the large area of Cd-contaminated paddy soils worldwide, low-cost measures to reduce the accumulation of Cd in rice plant are necessary. A field experiment was therefore conducted to investigate the reducing effect of lime combined with foliar applications of Zn (ZnSO4) or Fe (EDTA·Na2Fe) on Cd concentrations in brown rice on a Cd-contaminated paddy soil. The results indicated that liming alone or in combination with foliar sprays of Zn or Fe increased the soil pH by 0.27-0.63 units. However, limited effects of lime or lime combined with foliar applications of Zn/Fe on soil DTPA-extractable Cd, rice grain and rice straw biomass were observed. Liming alone significantly reduced the Cd concentration in brown rice and rice straw by 31.8% and 42.3%, respectively. The Cd concentrations in brown rice decreased by 25.5% and 65.4% and in rice straw by 53.0% and 68.1% after liming combined with foliar applications of Fe and Zn, respectively. In contrast, liming combined with foliar spraying of Fe significantly increased the transfer ratio of Cd from the rice straw to the grain. As a low-cost technique, lime application combined with foliar application of ZnSO4 could be recommended for the remediation of Cd-contaminated paddy soils.
Collapse
Affiliation(s)
- Ming-Meng Duan
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan 410125, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shuai Wang
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan 410125, China
| | - Dao-You Huang
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan 410125, China; Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Changsha, Hunan, China
| | - Qi-Hong Zhu
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan 410125, China; Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Changsha, Hunan, China.
| | - Shou-Long Liu
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan 410125, China
| | - Quan Zhang
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan 410125, China
| | - Han-Hua Zhu
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan 410125, China
| | - Chao Xu
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan 410125, China
| |
Collapse
|
40
|
Tadesse AW, Gereslassie T, Xu Q, Tang X, Wang J. Concentrations, Distribution, Sources and Ecological Risk Assessment of Trace Elements in Soils from Wuhan, Central China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15122873. [PMID: 30558229 PMCID: PMC6313746 DOI: 10.3390/ijerph15122873] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 12/07/2018] [Accepted: 12/11/2018] [Indexed: 11/16/2022]
Abstract
This study aimed to determine the concentration levels, potential sources and ecological risks of eleven trace elements, namely Cr, Fe, Co, Ni, Cu, As, Sb, Cd, Zn, Hg and Pb, in the soil from Huangpi district, Wuhan, Central China. Soil samples were collected from eighteen sites at soil depths of 1–10 and 10–20 cm and analyzed using Inductively Coupled Plasma-Mass Spectrometer ICP-MS (Thermo X SERIES 2, Scientific and Innovative Technology Co. Ltd., Beijing, China). The recorded mean concentration of the elements were in a decreasing order of Fe > Co > Cr > Ni > Pb > Cu > As > Cd > Sb > Zn > Hg. The mean concentration of trace elements, soil pH and total organic carbon (TOC) were higher at a soil depth of 1–10 cm. The obtained mean concentration of Cr, Co, As, Cd, Ni, Cu, Hg and Pb were above the soil background values of Wuhan and Hubei Province. The mean concentration values of Co, Ni and Cd, exceeded the recommended FAO (Food and Agriculture Organization)/ISRIC (International Soil Reference and Information Centre) (2004) and WHO/FAO (2001) values. Pearson’s correlation analysis illustrated that there was a strong and significant correlation between trace elements, whereas, a weak positive and negative correlation between elements and soil properties (pH and TOC). The principal component analysis (PCA) and cluster analysis (CA) result indicated that the concentration of trace elements in Huangpi soil were originated from anthropogenic sources. Potential ecological risk index (RI) of this study revealed that there is a high ecological risk of trace elements in the soil. Enrichment factor (EF) and geo-accumulation index (Igeo) of trace elements for this study indicated that the study area is strongly contaminated with Cd and Co. Generally, the finding of this research showed that Huangpi soil is contaminated.
Collapse
Affiliation(s)
- Ababo Workineh Tadesse
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China.
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China.
- Wuhan Botanical Garden, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Tekleweini Gereslassie
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China.
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China.
- Wuhan Botanical Garden, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Qiang Xu
- Department of management engineering, Shangrao Vocational and Technical College, Shangrao 334109, China.
| | - Xiaojun Tang
- Wuhan Britain-China School, Wuhan Foreign Languages School, Wuhan, 430022 China.
| | - Jun Wang
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China.
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China.
| |
Collapse
|
41
|
Xu ZM, Mei XQ, Tan L, Li QS, Wang LL, He BY, Guo SH, Zhou C, Ye HJ. Low root/shoot (R/S) biomass ratio can be an indicator of low cadmium accumulation in the shoot of Chinese flowering cabbage (Brassica campestris L. ssp. chinensis var. utilis Tsen et Lee) cultivars. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:36328-36340. [PMID: 30368704 DOI: 10.1007/s11356-018-3566-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 10/22/2018] [Indexed: 06/08/2023]
Abstract
Chinese flowering cabbage is a commonly consumed vegetable that accumulates Cd easily from Cd-contaminated soils. Cultivations of low-Cd cultivars are promising strategies for food safety, but low-Cd-accumulating mechanisms are not fully elucidated. To address this issue, 37 cultivars were screened to identify high- and low-Cd cultivars upon exposure to sewage-irrigated garden soil pretreated with different Cd concentrations (1.81, 2.90, and 3.70 mg kg-1dry soil). The results showed that shoot Cd concentrations differed among the cultivars by maximum degrees of 2.67-, 3.71-, and 3.00-fold under control and treatments, respectively. Soil-pot trial and hydroponic trial found no significant difference in Cd and Ca mobilization, uptake, and transport ability by root per weight between high- and low-Cd cultivars. Interestingly, a stable R/S ratio difference among cultivars (p < 0.01) was observed, and the cultivar variation of Cd accumulation in shoots was mainly dependent on their R/S ratios. R/S ratio was also statistically positively associated with Cd and Ca accumulation in high- and low-Cd cultivars (p < 0.05), both in soil and hydroponics culture. This was mainly due to the lower root biomass of low-Cd cultivars resulted in lower total release of root exudates, lower total Cd and Ca mobilization in rhizosphere soil, and lower total Cd and Ca uptake and transport. The higher shoot biomass of low-Cd cultivars also has dilution effects on Cd concentration in shoot. Overall, low R/S ratio may be regarded as a direct and efficient indicator of low Cd accumulation in the shoot of Chinese flowering cabbage. These findings provided the possibilities to screening low-Cd cultivars using their R/S ratio.
Collapse
Affiliation(s)
- Zhi-Min Xu
- School of Environment, Key Laboratory of Environmental Pollution and Health of Guangdong Province, Jinan University, Guangzhou, 510632, China
- Department of Ecology, Jinan University, Guangzhou, 510632, China
| | - Xiu-Qin Mei
- School of Environment, Key Laboratory of Environmental Pollution and Health of Guangdong Province, Jinan University, Guangzhou, 510632, China
| | - Ling Tan
- School of Environment, Key Laboratory of Environmental Pollution and Health of Guangdong Province, Jinan University, Guangzhou, 510632, China
| | - Qu-Sheng Li
- School of Environment, Key Laboratory of Environmental Pollution and Health of Guangdong Province, Jinan University, Guangzhou, 510632, China.
| | - Li-Li Wang
- School of Environment, Key Laboratory of Environmental Pollution and Health of Guangdong Province, Jinan University, Guangzhou, 510632, China
| | - Bao-Yan He
- School of Environment, Key Laboratory of Environmental Pollution and Health of Guangdong Province, Jinan University, Guangzhou, 510632, China
| | - Shi-Hong Guo
- School of Environment, Key Laboratory of Environmental Pollution and Health of Guangdong Province, Jinan University, Guangzhou, 510632, China
| | - Chu Zhou
- School of Environment, Key Laboratory of Environmental Pollution and Health of Guangdong Province, Jinan University, Guangzhou, 510632, China
| | - Han-Jie Ye
- School of Environment, Key Laboratory of Environmental Pollution and Health of Guangdong Province, Jinan University, Guangzhou, 510632, China
| |
Collapse
|
42
|
Fu Y, Yang X, Shen H. Root iron plaque alleviates cadmium toxicity to rice (Oryza sativa) seedlings. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 161:534-541. [PMID: 29929129 DOI: 10.1016/j.ecoenv.2018.06.015] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 06/05/2018] [Accepted: 06/07/2018] [Indexed: 06/08/2023]
Abstract
Iron plaque (IP) on root surface can enhance the tolerance of plants to environmental stresses. However, it remains unclear the impact of Fe2+ on cadmium (Cd) toxicity to rice (Oryza sativa) seedlings. In this study, the effects of different Fe2+ and Cd2+ concentration combinations on rice growth were examined hydroponically. Results indicated that Fe2+ concentration up to 3.2 mM did not damage rice roots while induced IP formation obviously. Cd2+ of 10 μM repressed rice growth significantly, while the addition of 0.2 mM Fe2+ to 10 μM Cd2+ solution (Cd+Fe) did not damage rice roots, indicating that Fe2+ could ameliorate Cd toxicity to rice seedlings. Microstructure analysis showed Cd+Fe treatment induced the formation of IP with dense and intricate network structure, Cd adsorption on the root surface was reduced significantly. Cd concentration of rice roots and shoots and Cd translocation from roots to shoots with Fe+Cd treatment were reduced by 34.1%, 36.0% and 20.1%, respectively, in comparison to a single Cd treatment. Noteworthy, the removal of IP resulted in a larger loss of root biomass under Cd treatment. In addition, Cd+Fe treatment increased the activities of root superoxide dismutase and catalase by 105.5% and 177.4%, and decreased H2O2 and O2·- accumulation of rice roots by 56.9% and 35.9%, and recovered Cd-triggered electrolyte leakage obviously, when compared with a single Cd treatment. The results from this experiment indicated that the formed dense IP on rice roots decreased Cd absorption and reactive oxygen species accumulation, and Fe2+ supply alleviated Cd toxicity to rice seedlings.
Collapse
Affiliation(s)
- Youqiang Fu
- Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, PR China; College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, PR China
| | - Xujian Yang
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, PR China
| | - Hong Shen
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, PR China.
| |
Collapse
|
43
|
Wan Y, Camara AY, Yu Y, Wang Q, Guo T, Zhu L, Li H. Cadmium dynamics in soil pore water and uptake by rice: Influences of soil-applied selenite with different water managements. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 240:523-533. [PMID: 29758526 DOI: 10.1016/j.envpol.2018.04.044] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 04/08/2018] [Accepted: 04/08/2018] [Indexed: 06/08/2023]
Abstract
Cadmium (Cd) in rice grains is a potential threat to human health. This study investigated the effects of selenite fertilisation (0 mg kg-1, 0.5 mg kg-1, and 1.0 mg kg-1) on soil solution Cd dynamics and rice uptake. Rice was grown in two Cd-contaminated soils in Jiangxi and Hunan Provinces under two different sets of conditions: aerobic and flooded. The experiments were conducted in pots. The plants were harvested at the seedling stage and at maturity to determine their Cd levels. Soil solutions were also extracted during the growing season to monitor Cd dynamics. The results showed that in the Jiangxi soil (pH 5.25), Cd concentrations in the soil solutions, seedlings, and mature rice plants were higher under aerobic than under flooded water management conditions. In the Hunan soil (pH 7.26), however, flooding decreased Cd levels in the rice seedlings but not in mature plants. Selenite additions to the Hunan soil decreased Cd concentrations in the soil solutions and in the mature rice plants. These effects were not observed for the solutions or the plants from Jiangxi soil amended with selenite. Relative to the control treatment, 0.5 mg kg-1 selenite decreased the rice grain Cd content by 45.2% and 67.7% under aerobic and flooding conditions, respectively. The results demonstrated that water management regimes affected rice Cd uptake more effectively in Jiangxi than in Hunan soil, whereas selenite addition was more effective in Hunan than in Jiangxi soil. Selenite addition was also more effective at reducing rice grain Cd levels when it was applied under flooding than under aerobic conditions.
Collapse
Affiliation(s)
- Yanan Wan
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, Key Laboratory of Plant-Soil Interactions of the Ministry of Education, China Agricultural University, Beijing, 100193, People's Republic of China
| | - Aboubacar Younoussa Camara
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, Key Laboratory of Plant-Soil Interactions of the Ministry of Education, China Agricultural University, Beijing, 100193, People's Republic of China; Department of Water/Forest and Environment, Higher Institute of Agronomy and Veterinary of Faranah, B.P. 131, Equatorial Guinea
| | - Yao Yu
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, Key Laboratory of Plant-Soil Interactions of the Ministry of Education, China Agricultural University, Beijing, 100193, People's Republic of China
| | - Qi Wang
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, Key Laboratory of Plant-Soil Interactions of the Ministry of Education, China Agricultural University, Beijing, 100193, People's Republic of China
| | - Tianliang Guo
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, Key Laboratory of Plant-Soil Interactions of the Ministry of Education, China Agricultural University, Beijing, 100193, People's Republic of China
| | - Lina Zhu
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, Key Laboratory of Plant-Soil Interactions of the Ministry of Education, China Agricultural University, Beijing, 100193, People's Republic of China
| | - Huafen Li
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, Key Laboratory of Plant-Soil Interactions of the Ministry of Education, China Agricultural University, Beijing, 100193, People's Republic of China.
| |
Collapse
|
44
|
Zhu H, Wu C, Wang J, Zhang X. The effect of simulated acid rain on the stabilization of cadmium in contaminated agricultural soils treated with stabilizing agents. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:17499-17508. [PMID: 29658066 DOI: 10.1007/s11356-018-1929-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 04/03/2018] [Indexed: 06/08/2023]
Abstract
Stabilization technology is one of widely used remediation technologies for cadmium (Cd)-contaminated agricultural soils, but stabilized Cd in soil may be activated again when external conditions such as acid rain occurred. Therefore, it is necessary to study the effect of acid rain on the performance of different stabilizing agents on Cd-polluted agriculture soils. In this study, Cd-contaminated soils were treated with mono-calcium phosphate (MCP), mono-ammonium phosphate (MAP), and artificial zeolite (AZ) respectively and incubated 3 months. These treatments were followed by two types of simulated acid rain (sulfuric acid rain and mixed acid rain) with three levels of acidity (pH = 3.0, 4.0, and 5.6). The chemical forms of Cd in the soils were determined by Tessier's sequential extraction procedure, and the leaching toxicities of Cd in the soils were assessed by toxicity characteristic leaching procedure (TCLP). The results show that the three stabilizing agents could decrease the mobility of Cd in soil to some degree with or without simulated acid rain (SAR) treatment. The stabilization performances followed the order of AZ < MAP < MCP. Acid rain soaking promoted the activation of Cd in stabilized soil, and both anion composition and pH of acid rain were two important factors that influenced the stabilization effect of Cd.
Collapse
Affiliation(s)
- Hao Zhu
- Department of Agricultural Resources and Environment, Nanjing University of Information Science and Technology, Nanjing, 210044, China
- Jiangsu Key Laboratory of Agricultural Meteorology, Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Chunfa Wu
- Department of Agricultural Resources and Environment, Nanjing University of Information Science and Technology, Nanjing, 210044, China.
| | - Jun Wang
- Chongqing Research Academy of Environmental Sciences, Chongqing, 401147, China
| | - Xumei Zhang
- Taicang Soil and Fertilizer Station, Taicang, 215400, China
| |
Collapse
|
45
|
Zhou H, Zhu W, Yang WT, Gu JF, Gao ZX, Chen LW, Du WQ, Zhang P, Peng PQ, Liao BH. Cadmium uptake, accumulation, and remobilization in iron plaque and rice tissues at different growth stages. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 152:91-97. [PMID: 29407786 DOI: 10.1016/j.ecoenv.2018.01.031] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 01/08/2018] [Accepted: 01/11/2018] [Indexed: 06/07/2023]
Abstract
Rice consumption is considered the main source of human dietary Cd intake in Southeast Asia. This study aimed to investigate Cd uptake, accumulation, and remobilization in iron plaque and rice (Oryza sativa L. cv. 'Xiangwanxian 12') tissues at different growth stages. A pot experiment was performed in two Cd-contaminated paddy soils. Cd concentrations in iron plaque and rice tissues at five different growth stages (tillering, booting, milky, dough, and maturing) were measured. Cd concentrations in iron plaque and rice tissues (roots, stems, leaves, spikelet, husks, and brown rice) varied with growth stage. Cd accumulation in rice plants increased with extending growth in both soils, reaching 15.3 and 35.4μg/pot, respectively, at the maturing stage. The amounts of Cd in brown rice increased from the milky to maturing stages, with the greatest percentage uptake during the maturing stage. Cd amount in iron plaque significantly affected the uptake and accumulation of Cd in roots and aerial parts of rice plants. Accumulated Cd in leaves was remobilized and transported during the booting to maturing stages, and the contributions of Cd transportation from leaves to brown rice were 30.0% and 22.5% in the two soils, respectively. A large amount of Cd accumulated in brown rice during the maturing stage. The transportation of remobilized Cd from leaves was also important for the accumulation of Cd in brown rice.
Collapse
Affiliation(s)
- Hang Zhou
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Wei Zhu
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Wen-Tao Yang
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Jiao-Feng Gu
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Zi-Xiang Gao
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Li-Wei Chen
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Wen-Qi Du
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Ping Zhang
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Pei-Qin Peng
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Bo-Han Liao
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China.
| |
Collapse
|
46
|
Lai YC, Syu CH, Wang PJ, Lee DY, Fan C, Juang KW. Field experiment for determining lead accumulation in rice grains of different genotypes and correlation with iron oxides deposited on rhizosphere soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 610-611:845-853. [PMID: 28826122 DOI: 10.1016/j.scitotenv.2017.08.034] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 07/26/2017] [Accepted: 08/03/2017] [Indexed: 06/07/2023]
Abstract
Paddy rice (Oryza sativa L.) is a major staple crop in Asia. However, heavy metal accumulation in paddy soil poses a health risk for rice consumption. Although plant uptake of Pb is usually low, Pb concentrations in rice plants have been increasing with Pb contamination in paddy fields. It is known that iron oxide deposits in the rhizosphere influence the absorption of soil Pb by rice plants. In this study, 14 rice cultivars bred in Taiwan, including ten japonica cultivars (HL21, KH145, TC192, TK9, TK14, TK16, TN11, TNG71, TNG84, and TY3) and four indica cultivars (TCS10, TCS17, TCSW2, and TNGS22), were used in a field experiment. We investigated the genotypic variation in rice plant Pb in relation to iron oxides deposited in the rhizosphere, as seen in a suspiciously contaminated site in central Taiwan. The results showed that the cultivars TCSW2, TN11, TNG71, and TNG84 accumulated brown rice Pb exceeding the tolerable level of 0.2mgkg-1. In contrast, the cultivars TNGS22, TK9, TK14, and TY3 accumulated much lower brown rice Pb (<0.1mgkg-1); therefore, they should be prioritized as safe cultivars for sites with potential contamination. Moreover, the iron oxides deposited on the rhizosphere soil show stronger affinity to soil-available Pb than those on the root surface to form iron plaque. The relative tendency of Pb sequestration toward rhizosphere soil was negatively correlated with the Pb concentrations in brown rice. The iron oxides deposited on the rhizosphere soil but not on the root surface to form iron plaque dominate Pb sequestration in the rhizosphere. Therefore, the enhancement of iron oxide deposits on the rhizosphere soil could serve as a barrier preventing soil Pb on the root surface and result in reduced Pb accumulation in brown rice.
Collapse
Affiliation(s)
- Yu-Cheng Lai
- Department of Agronomy, National Chiayi University, Chiayi City, Taiwan
| | - Chien-Hui Syu
- Agricultural Chemistry Division, Taiwan Agricultural Research Institute, Council of Agriculture, Executive Yuan, Taiwan
| | - Pin-Jie Wang
- Department of Agronomy, National Chiayi University, Chiayi City, Taiwan
| | - Dar-Yuan Lee
- Department of Agricultural Chemistry, National Taiwan University, Taipei City, Taiwan
| | - Chihhao Fan
- Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei City, Taiwan
| | - Kai-Wei Juang
- Department of Agronomy, National Chiayi University, Chiayi City, Taiwan.
| |
Collapse
|
47
|
Chen Z, Tang YT, Yao AJ, Cao J, Wu ZH, Peng ZR, Wang SZ, Xiao S, Baker AJM, Qiu RL. Mitigation of Cd accumulation in paddy rice (Oryza sativa L.) by Fe fertilization. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 231:549-559. [PMID: 28843203 DOI: 10.1016/j.envpol.2017.08.055] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 08/07/2017] [Accepted: 08/14/2017] [Indexed: 06/07/2023]
Abstract
Cadmium uptake in rice is believed to be mediated by the Fe transport system. Phyto-available Cd can be changed by Fe fertilization of substrates. This work investigated whether and how Fe fertilization affects mitigation of Cd accumulation in paddy rice. A 90-d soil column experiment was conducted to study the change of Cd and Fe availability in soil after Fe fertilization (ionic and chelated Fe). A low-Cd accumulating cultivar (TY116) and a high-Cd accumulating cultivar (JY841) were grown in two Cd-polluted paddy soils amended with chelated Fe fertilizers. Additionally, both cultivars were grown in hydroponics to compare Fe-related gene expression in EDDHAFe-deficient and EDDHAFe-sufficient roots. The column experiment showed that EDTANa2Fe(II) and EDDHAFe(III) fertilization had a better mitigation effect on soil Cd availability compared to FeSO4·7H2O. Moreover, the field experiment demonstrated that these two chelated fertilizations could reduce Cd concentrations in brown rice by up to 80%. Iron concentrations in the brown rice were elevated by Fe chelates. Compared to EDDHAFe(III), EDTANa2Fe(II) fertilization had a stronger mitigation effect by generating more EDTANa2Cd(II) in the soil solution to decrease phyto-available Cd in the soil. While EDDHAFe(III) fertilization could increase soil pH and decrease soil Eh which contributed to decreasing phyto-available Cd in a contaminated soil. In the hydroponic experiment, Fe sufficiency significantly reduced Cd concentrations in above-ground organs. In some cases, the expression of OsIRT1, OsNRAMP1 and OsNRAMP5 was inhibited under Fe sufficiency relative to Fe deficiency conditions. These results suggest that mitigation of rice Cd by Fe chelate fertilization results from a decrease in available Cd in substrates and the inhibition of the expression of several Fe-related genes in the IRT and NRAMP families.
Collapse
Affiliation(s)
- Zhe Chen
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, PR China; Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, PR China
| | - Ye-Tao Tang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, PR China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou 510275, PR China.
| | - Ai-Jun Yao
- School of Geography and Planning, Sun Yat-sen University, Guangzhou 510275, PR China
| | - Jian Cao
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, PR China
| | - Zhuo-Hao Wu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, PR China
| | - Zhe-Ran Peng
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, PR China
| | - Shi-Zhong Wang
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, PR China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou 510275, PR China
| | - Shi Xiao
- School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, PR China
| | - Alan J M Baker
- School of BioSciences, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Rong-Liang Qiu
- School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, PR China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology (Sun Yat-sen University), Guangzhou 510275, PR China
| |
Collapse
|
48
|
Huang G, Ding C, Guo F, Li X, Zhou Z, Zhang T, Wang X. The Role of Node Restriction on Cadmium Accumulation in the Brown Rice of 12 Chinese Rice (Oryza sativa L.) Cultivars. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:10157-10164. [PMID: 29091443 DOI: 10.1021/acs.jafc.7b03333] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
For selection or breeding of rice (Oryza sativa L.) cultivars with low Cd affinity, the role of node Cd restriction on Cd accumulation in brown rice was studied. A pot experiment was conducted to investigate the concentration of Cd in different sections of 12 Chinese rice cultivars. The results indicated that the Cd accumulation in the brown rice was mainly dependent on the root or shoot Cd concentration. Among the cultivars with nearly equal shoot Cd concentrations, Cd accumulation in brown rice was mainly dependent on the transport of Cd in the shoot. However, the Cd transport in the shoot was significantly restricted by the nodes, especially by the first node. Furthermore, the area of the diffuse vascular bundle in the junctional region of the flag leaf and the first node was a key contributor to the variations in Cd restriction by the nodes.
Collapse
Affiliation(s)
- Gaoxiang Huang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences , Nanjing 210008, China
- University of Chinese Academy of Sciences , Beijing 100049, China
| | - Changfeng Ding
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences , Nanjing 210008, China
| | - Fuyu Guo
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences , Nanjing 210008, China
- University of Chinese Academy of Sciences , Beijing 100049, China
| | - Xiaogang Li
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences , Nanjing 210008, China
| | - Zhigao Zhou
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences , Nanjing 210008, China
| | - Taolin Zhang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences , Nanjing 210008, China
| | - Xingxiang Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences , Nanjing 210008, China
- Ecological Experimental Station of Red Soil, Chinese Academy of Sciences , Yingtan 335211, China
| |
Collapse
|
49
|
Luo FL, Xing YP, Wei GW, Li CY, Yu FH. Clonal integration facilitates spread of Paspalum paspaloides from terrestrial to cadmium-contaminated aquatic habitats. PLANT BIOLOGY (STUTTGART, GERMANY) 2017; 19:859-867. [PMID: 28836322 DOI: 10.1111/plb.12617] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 08/20/2017] [Indexed: 06/07/2023]
Abstract
Cadmium (Cd) is a hazardous environmental pollutant with high toxicity to plants, which has been detected in many wetlands. Clonal integration (resource translocation) between connected ramets of clonal plants can increase their tolerance to stress. We hypothesised that clonal integration facilitates spread of amphibious clonal plants from terrestrial to Cd-contaminated aquatic habitats. The spread of an amphibious grass Paspalum paspaloides was simulated by growing basal older ramets in uncontaminated soil connected (allowing integration) or not connected (preventing integration) to apical younger ramets of the same fragments in Cd-contaminated water. Cd contamination of apical ramets of P. paspaloides markedly decreased growth and photosynthetic capacity of the apical ramets without connection to the basal ramets, but did not decrease these properties with connection. Cd contamination did not affect growth of the basal ramets without connection to the apical ramets, but Cd contamination of 4 and 12 mg·l-1 significantly increased growth with connection. Consequently, clonal integration increased growth of the apical ramets, basal ramets and whole clones when the apical ramets were grown in Cd-contaminated water of 4 and 12 mg·l-1 . Cd was detected in the basal ramets with connection to the apical ramets, suggesting Cd could be translocated due to clonal integration. Clonal integration, most likely through translocation of photosynthates, can support P. paspaloides to spread from terrestrial to Cd-contaminated aquatic habitats. Amphibious clonal plants with a high ability for clonal integration are particularly useful for re-vegetation of degraded aquatic habitats caused by Cd contamination.
Collapse
Affiliation(s)
- F-L Luo
- School of Nature Conservation, Beijing Forestry University, Beijing, China
| | - Y-P Xing
- School of Nature Conservation, Beijing Forestry University, Beijing, China
| | - G-W Wei
- School of Nature Conservation, Beijing Forestry University, Beijing, China
| | - C-Y Li
- School of Nature Conservation, Beijing Forestry University, Beijing, China
| | - F-H Yu
- School of Nature Conservation, Beijing Forestry University, Beijing, China
- Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou, Zhejiang, China
| |
Collapse
|
50
|
Li Y, Wang S, Prete D, Xue S, Nan Z, Zang F, Zhang Q. Accumulation and interaction of fluoride and cadmium in the soil-wheat plant system from the wastewater irrigated soil of an oasis region in northwest China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 595:344-351. [PMID: 28390313 DOI: 10.1016/j.scitotenv.2017.03.288] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 03/30/2017] [Accepted: 03/31/2017] [Indexed: 06/07/2023]
Abstract
Contamination of agricultural soil with high concentrations of fluorine (F) and cadmium (Cd) have raised significant concerns regarding their impacts on human health but the relationship between F and Cd in soil-wheat plant system in an oasis region has not been investigated. This paper aims to study the accumulation and interaction of F and total Cd in the soil-wheat plant system while considering the potential risks of F and Cd to human health. Soil samples were collected from wastewater-irrigated oasis regions, Dongdagou and Xidagou. The concentrations of total F (FT) and Cd in soils from the Dongdagou and Xidagou stream basins were higher than those in uncontaminated soils (F=270.25mgkg-1, Cd=0.10mgkg-1). Water-soluble F (FW) and FT contributed to F concentrations in underground parts of wheat when the samples were collected from Dongdagou, however, F in aboveground parts may be mainly influenced by atmospheric F. The main source of F in wheat plants collected from the Xidagou site may be mainly controlled by atmospheric F, including aboveground and underground parts. Soils in the studied region pose a potentially severe health risk for humans via bioaccumulation of toxic metals through the food chain, and therefore, are not suitable for planting wheat meant for human consumption. Cd had a significantly negative effect on F accumulation in wheat root from Dongdagou (P<0.01). This field study provided F-Cd interactions that occur in soils from an oasis region at environmentally relevant concentrations.
Collapse
Affiliation(s)
- Yepu Li
- Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Gansu Province, China; Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Shengli Wang
- Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Gansu Province, China; Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Daniel Prete
- Department of Chemistry and Biology, Ryerson University, Toronto M5B2K3, Canada
| | - Suyin Xue
- Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Gansu Province, China; Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Zhongren Nan
- Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Gansu Province, China
| | - Fei Zang
- Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Gansu Province, China
| | - Qian Zhang
- Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Gansu Province, China
| |
Collapse
|