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Lin M, Liu H, Liu B, Li X, Qian W, Zhou D, Jiang J, Zhang Y. Transcriptome-wide m 6A methylation profile reveals tissue specific regulatory networks in switchgrass (Panicum virgatum L.) under cadmium stress. JOURNAL OF HAZARDOUS MATERIALS 2024; 476:134904. [PMID: 38996680 DOI: 10.1016/j.jhazmat.2024.134904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 05/20/2024] [Accepted: 06/12/2024] [Indexed: 07/14/2024]
Abstract
The heavy metal cadmium (Cd), known for its high toxicity, poses a grave threat to human health through the food chain. N6-methyladenosine (m6A), the most abundant internal modification, regulates plant adaptation to various adversities, yet the panorama of m6A modifications in switchgrass under cadmium stress remains elusive. This study examines the physiological responses of switchgrass roots and shoots exposed to 50 μM CdCl2, alongside an overview of transcriptome-wide m6A methylation patterns. After cadmium treatment, methylation modifications are primarily enriched near stop codons and the 3'UTR region, with a negative correlation between m6A modification and gene expression levels. In shoots, approximately 58 % of DEGs with m6A modifications show upregulation in expression and decrease in m6A peaks, including zinc transporter 4-like (ZIP4). In roots, about 43 % of DEGs with m6A modifications exhibit downregulation in expression and increase in m6A peaks, such as the ABC transporter family member (ABCG25). We further validate the m6A enrichment, gene expression and mRNA stability of ZIP4 in response to Cd treatment. The results suggest that the negative correlation of m6A enrichment and gene expression is due to altered mRNA stability. Our study establishes an m6A regulatory network governing cadmium transport in switchgrass roots and shoots, offering new avenues for candidate gene manipulation in phytoremediation applications of heavy metal pollution.
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Affiliation(s)
- Mengzhuo Lin
- College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China
| | - Huayue Liu
- College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China
| | - Bowen Liu
- College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China
| | - Xue Li
- College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China
| | - Wenwu Qian
- College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China
| | - Die Zhou
- College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China
| | - Jishan Jiang
- College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China.
| | - Yunwei Zhang
- College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China.
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2
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Kaushik S, Ranjan A, Sidhu A, Singh AK, Sirhindi G. Cadmium toxicity: its' uptake and retaliation by plant defence system and ja signaling. Biometals 2024; 37:755-772. [PMID: 38206521 DOI: 10.1007/s10534-023-00569-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 12/05/2023] [Indexed: 01/12/2024]
Abstract
Cadmium (Cd+2) renders multifarious environmental stresses and highly toxic to nearly all living organisms including plants. Cd causes toxicity by unnecessary augmentation of ROS that targets essential molecules and fundamental processes in plants. In response, plants outfitted a repertory of mechanisms to offset Cd toxicity. The main elements of these are Cd chelation, sequestration into vacuoles, and adjustment of Cd uptake by transporters and escalation of antioxidative mechanism. Signal molecules like phytohormones and reactive oxygen species (ROS) activate the MAPK cascade, the activation of the antioxidant system andsynergistic crosstalk between different signal molecules in order to regulate plant responses to Cd toxicity. Transcription factors like WRKY, MYB, bHLH, bZIP, ERF, NAC etc., located downstream of MAPK, and are key factors in regulating Cd toxicity responses in plants. Apart from this, MAPK and Ca2+signaling also have a salient involvement in rectifying Cd stress in plants. This review highlighted the mechanism of Cd uptake, translocation, detoxification and the key role of defense system, MAPKs, Ca2+ signals and jasmonic acid in retaliating Cd toxicity via synchronous management of various other regulators and signaling components involved under stress condition.
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Affiliation(s)
- Shruti Kaushik
- Department of Botany, Punjabi University, Patiala, Punjab, 147002, India
| | - Alok Ranjan
- ICAR-National Institute for Plant Biotechnology, New Delhi, 110012, India
- Department of Biotechnology, Patna Women's College, Bihar, 800001, India
| | - Anmol Sidhu
- Department of Botany, Punjabi University, Patiala, Punjab, 147002, India
| | - Anil Kumar Singh
- ICAR-National Institute for Plant Biotechnology, New Delhi, 110012, India
| | - Geetika Sirhindi
- Department of Botany, Punjabi University, Patiala, Punjab, 147002, India.
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Zhang X, Yang M, Yang H, Pian R, Wang J, Wu AM. The Uptake, Transfer, and Detoxification of Cadmium in Plants and Its Exogenous Effects. Cells 2024; 13:907. [PMID: 38891039 PMCID: PMC11172145 DOI: 10.3390/cells13110907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 05/13/2024] [Accepted: 05/13/2024] [Indexed: 06/20/2024] Open
Abstract
Cadmium (Cd) exerts a toxic influence on numerous crucial growth and development processes in plants, notably affecting seed germination rate, transpiration rate, chlorophyll content, and biomass. While considerable advances in Cd uptake and detoxification of plants have been made, the mechanisms by which plants adapt to and tolerate Cd toxicity remain elusive. This review focuses on the relationship between Cd and plants and the prospects for phytoremediation of Cd pollution. We highlight the following issues: (1) the present state of Cd pollution and its associated hazards, encompassing the sources and distribution of Cd and the risks posed to human health; (2) the mechanisms underlying the uptake and transport of Cd, including the physiological processes associated with the uptake, translocation, and detoxification of Cd, as well as the pertinent gene families implicated in these processes; (3) the detrimental effects of Cd on plants and the mechanisms of detoxification, such as the activation of resistance genes, root chelation, vacuolar compartmentalization, the activation of antioxidant systems and the generation of non-enzymatic antioxidants; (4) the practical application of phytoremediation and the impact of incorporating exogenous substances on the Cd tolerance of plants.
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Affiliation(s)
- Xintong Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China (R.P.)
| | - Man Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China (R.P.)
| | - Hui Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China (R.P.)
| | - Ruiqi Pian
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China (R.P.)
| | - Jinxiang Wang
- Root Biology Center, South China Agricultural University, Guangzhou 510642, China
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
- Key Laboratory of Agricultural and Rural Pollution Control and Environmental Safety in Guangdong Province, Guangzhou 510642, China
| | - Ai-Min Wu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China (R.P.)
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4
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Moy A, Nkongolo K. Decrypting Molecular Mechanisms Involved in Counteracting Copper and Nickel Toxicity in Jack Pine ( Pinus banksiana) Based on Transcriptomic Analysis. PLANTS (BASEL, SWITZERLAND) 2024; 13:1042. [PMID: 38611570 PMCID: PMC11013723 DOI: 10.3390/plants13071042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 03/28/2024] [Accepted: 03/29/2024] [Indexed: 04/14/2024]
Abstract
The remediation of copper and nickel-afflicted sites is challenged by the different physiological effects imposed by each metal on a given plant system. Pinus banksiana is resilient against copper and nickel, providing an opportunity to build a valuable resource to investigate the responding gene expression toward each metal. The objectives of this study were to (1) extend the analysis of the Pinus banksiana transcriptome exposed to nickel and copper, (2) assess the differential gene expression in nickel-resistant compared to copper-resistant genotypes, and (3) identify mechanisms specific to each metal. The Illumina platform was used to sequence RNA that was extracted from seedlings treated with each of the metals. There were 449 differentially expressed genes (DEGs) between copper-resistant genotypes (RGs) and nickel-resistant genotypes (RGs) at a high stringency cut-off, indicating a distinct pattern of gene expression toward each metal. For biological processes, 19.8% of DEGs were associated with the DNA metabolic process, followed by the response to stress (13.15%) and the response to chemicals (8.59%). For metabolic function, 27.9% of DEGs were associated with nuclease activity, followed by nucleotide binding (27.64%) and kinase activity (10.16%). Overall, 21.49% of DEGs were localized to the plasma membrane, followed by the cytosol (16.26%) and chloroplast (12.43%). Annotation of the top upregulated genes in copper RG compared to nickel RG identified genes and mechanisms that were specific to copper and not to nickel. NtPDR, AtHIPP10, and YSL1 were identified as genes associated with copper resistance. Various genes related to cell wall metabolism were identified, and they included genes encoding for HCT, CslE6, MPG, and polygalacturonase. Annotation of the top downregulated genes in copper RG compared to nickel RG revealed genes and mechanisms that were specific to nickel and not copper. Various regulatory and signaling-related genes associated with the stress response were identified. They included UGT, TIFY, ACC, dirigent protein, peroxidase, and glyoxyalase I. Additional research is needed to determine the specific functions of signaling and stress response mechanisms in nickel-resistant plants.
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Affiliation(s)
| | - Kabwe Nkongolo
- Biomolecular Sciences Program, Department of Biology, School of Natural Sciences, Laurentian University, Sudbury, ON P3E 2C6, Canada;
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Jia W, Guo Z, Lv S, Lin K, Li Y. SbYS1 and SbWRKY72 regulate Cd tolerance and accumulation in sweet sorghum. PLANTA 2024; 259:100. [PMID: 38536457 DOI: 10.1007/s00425-024-04388-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 03/12/2024] [Indexed: 04/24/2024]
Abstract
MAIN CONCLUSION SbYS1 and its upstream transcription factor SbWRKY72 were involved in Cd tolerance and accumulation and are valuable for developing sweet sorghum germplasm with high-Cd tolerance or accumulation ability through genetic manipulation. Cadmium (Cd) is highly toxic and can severely affect human health. Sweet sorghum, as an energy crop, shows great potential in extracting cadmium from Cd-contaminated soils. However, its molecular mechanisms of Cd-tolerance and -accumulation remain largely unknown. Here, we isolated a YSL family gene SbYS1 from the sweet sorghum genotype with high Cd accumulation ability and the expression of SbYS1 in roots was induced by cadmium. GUS staining experiment exhibited that SbYS1 was expressed in the epidermis and parenchyma tissues of roots. Further subcellular localization analysis suggested that SbYS1 was localized in the endoplasmic reticulum and plasma membrane. Yeast transformed with SbYS1 exhibited a sensitive phenotype compared to the control when exposed to Cd-NA (chelates of cadmium and nicotianamine), indicating that SbYS1 may absorb cadmium in the form of Cd-NA. Arabidopsis overexpressing SbYS1 had a longer root length and accumulated less Cd in roots and shoots. SbWRKY72 bound to the promoter of SbYS1 and negatively regulated the expression of SbYS1. Transgenic Arabidopsis of SbWRKY72 showed higher sensitivity to cadmium and increased cadmium accumulation in roots. Our results provide references for improving the phytoremediation efficiency of sweet sorghum by genetic manipulation in the future.
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Affiliation(s)
- Weitao Jia
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, No. 20 Nanxincun, Xiangshan, Beijing, 100093, China
- Key Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 401122, China
| | - Zijing Guo
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, No. 20 Nanxincun, Xiangshan, Beijing, 100093, China
- China National Botanical Garden, Beijing, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Sulian Lv
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, No. 20 Nanxincun, Xiangshan, Beijing, 100093, China
- China National Botanical Garden, Beijing, China
| | - Kangqi Lin
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, No. 20 Nanxincun, Xiangshan, Beijing, 100093, China
- China National Botanical Garden, Beijing, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yinxin Li
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, No. 20 Nanxincun, Xiangshan, Beijing, 100093, China.
- China National Botanical Garden, Beijing, China.
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Ghorbani A, Emamverdian A, Pehlivan N, Zargar M, Razavi SM, Chen M. Nano-enabled agrochemicals: mitigating heavy metal toxicity and enhancing crop adaptability for sustainable crop production. J Nanobiotechnology 2024; 22:91. [PMID: 38443975 PMCID: PMC10913482 DOI: 10.1186/s12951-024-02371-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 02/25/2024] [Indexed: 03/07/2024] Open
Abstract
The primary factors that restrict agricultural productivity and jeopardize human and food safety are heavy metals (HMs), including arsenic, cadmium, lead, and aluminum, which adversely impact crop yields and quality. Plants, in their adaptability, proactively engage in a multitude of intricate processes to counteract the impacts of HM toxicity. These processes orchestrate profound transformations at biomolecular levels, showing the plant's ability to adapt and thrive in adversity. In the past few decades, HM stress tolerance in crops has been successfully addressed through a combination of traditional breeding techniques, cutting-edge genetic engineering methods, and the strategic implementation of marker-dependent breeding approaches. Given the remarkable progress achieved in this domain, it has become imperative to adopt integrated methods that mitigate potential risks and impacts arising from environmental contamination on yields, which is crucial as we endeavor to forge ahead with the establishment of enduring agricultural systems. In this manner, nanotechnology has emerged as a viable field in agricultural sciences. The potential applications are extensive, encompassing the regulation of environmental stressors like toxic metals, improving the efficiency of nutrient consumption and alleviating climate change effects. Integrating nanotechnology and nanomaterials in agrochemicals has successfully mitigated the drawbacks associated with traditional agrochemicals, including challenges like organic solvent pollution, susceptibility to photolysis, and restricted bioavailability. Numerous studies clearly show the immense potential of nanomaterials and nanofertilizers in tackling the acute crisis of HM toxicity in crop production. This review seeks to delve into using NPs as agrochemicals to effectively mitigate HM toxicity and enhance crop resilience, thereby fostering an environmentally friendly and economically viable approach toward sustainable agricultural advancement in the foreseeable future.
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Affiliation(s)
- Abazar Ghorbani
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, 550025, China.
- Department of Biology, Faculty of Sciences, University of Mohaghegh Ardabili, Ardabil, Islamic Republic of Iran.
| | - Abolghassem Emamverdian
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China
| | - Necla Pehlivan
- Biology Department, Faculty of Arts and Sciences, Recep Tayyip Erdogan University, Rize, 53100, Türkiye
| | - Meisam Zargar
- Department of Agrobiotechnology, Institute of Agriculture, RUDN University, Moscow, 117198, Russia
| | - Seyed Mehdi Razavi
- Department of Biology, Faculty of Sciences, University of Mohaghegh Ardabili, Ardabil, Islamic Republic of Iran
| | - Moxian Chen
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang, 550025, China.
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Qiao K, Shan Q, Zhang H, Lv F, Zhou A. Populus euphratica plant cadmium tolerance PePCR3 improves cadmium tolerance. TREE PHYSIOLOGY 2023; 43:1950-1963. [PMID: 37615479 DOI: 10.1093/treephys/tpad103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 07/17/2023] [Accepted: 08/20/2023] [Indexed: 08/25/2023]
Abstract
Contamination of soils with toxic heavy metals is a major environmental problem. Growing crop plants that can promote the efflux of heavy metals is an effective strategy in contaminated soils. The plant cadmium resistance (PCR) protein is involved in the translocation of heavy metals, specifically zinc and cadmium (Cd). In this study, yeast expressing Populus euphratica PCR3 (PePCR3) showed enhanced Cd tolerance and decreased Cd accumulation under Cd treatment. Real-time quantitative PCR analyses revealed up-regulation of PePCR3 in poplar seedlings under Cd stress. Localization analysis revealed that PePCR3 localizes at the plasma membrane. The plant growth and biomass were greater in PePCR3-overexpressing (OE) transgenic hybrid poplar lines than in wild type (WT). Physiological parameters analyses indicated that, compared with WT, PePCR3-OE transgenic lines were more tolerant to Cd. In addition, more Cd was excreted in the roots of the PePCR3-OE transgenic lines than in those of WT, but the remaining Cd in transgenic lines was more translocated into the stems and leaves. Eight genes encoding transporters showed increased transcript levels in PePCR3-OE transgenic lines under Cd treatment, implying that PePCR3 interacts with other transporters to translocate Cd. Thus, PePCR3 may be an important genetic resource for generating new lines that can enhance Cd translocation to phytoremediation in contaminated soils.
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Affiliation(s)
- Kun Qiao
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Changjiang Road No. 600, Xiangfang District, Harbin 150030, PR China
| | - Qinghua Shan
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Changjiang Road No. 600, Xiangfang District, Harbin 150030, PR China
| | - Haizhen Zhang
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Changjiang Road No. 600, Xiangfang District, Harbin 150030, PR China
| | - Fuling Lv
- Chinese Academy of Forestry, Xiangshan Road east Xiaofu 1, Haidian District, Beijing 100091, PR China
| | - Aimin Zhou
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Changjiang Road No. 600, Xiangfang District, Harbin 150030, PR China
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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.
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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
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9
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Lv F, Shan Q, Qiao K, Zhang H, Zhou A. Populus euphratica plant cadmium resistance 2 mediates Cd tolerance by root efflux of Cd ions in poplar. PLANT CELL REPORTS 2023; 42:1777-1789. [PMID: 37740037 DOI: 10.1007/s00299-023-03065-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 08/20/2023] [Indexed: 09/24/2023]
Abstract
KEY MESSAGE Populus euphratica PePCR2 increases Cd resistance by functioning as a Cd extrusion pump and by mediating the expression of genes encoding other transporters. Cadmium (Cd) is a non-essential, toxic metal that negatively affects plant growth. Plant cadmium resistance (PCR) proteins play key roles in the response to heavy metal stress. In this study, we isolated the gene PePCR2 encoding a plant PCR from Populus euphratica. PePCR2 gene transcription was induced by Cd, and its transcript level peaked at 24 h after exposure, at a level approximately 18-fold higher than that at 0 h. The PePCR2 protein was localized to the plasma membrane. Compared with yeast cells harboring the empty vector, yeast cells expressing PePCR2 showed enhanced Cd tolerance and a lower Cd content. Compared with wild-type (WT) plants, poplar overexpressing PePCR2 showed higher Cd resistance. Net Cd2+ efflux measurements showed that Cd2+ efflux from the roots was 1.5 times higher in the PePCR2-overexpressing plants than in WT plants. Furthermore, compared with WT plants, the PePCR2-overexpressing plants showed increased transcript levels of ABCG29, HMA5, PDR2, YSL7, and ZIP1 and decreased transcript levels of NRAMP6, YSL3, and ZIP11 upon exposure to Cd. These data show that PePCR2 increased Cd resistance by acting as a Cd extrusion pump and/or by regulating other Cd2+ transporters to decrease Cd toxicity in the cytosol. The results of this study identify a novel plant gene with potential applications in Cd removal, and provide a theoretical basis for reducing Cd toxicity and protecting food safety.
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Affiliation(s)
- Fuling Lv
- Chinese Academy of Forestry, Beijing, 100091, People's Republic of China.
| | - Qinghua Shan
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Kun Qiao
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Haizhen Zhang
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Aimin Zhou
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, 150030, People's Republic of China
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10
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Zhang M, Chang MH, Li H, Shu YJ, Bai Y, Gao JY, Zhu JX, Dong XY, Guo DL, Guo CH. MsYSL6, A Metal Transporter Gene of Alfalfa, Increases Iron Accumulation and Benefits Cadmium Resistance. PLANTS (BASEL, SWITZERLAND) 2023; 12:3485. [PMID: 37836225 PMCID: PMC10575464 DOI: 10.3390/plants12193485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/01/2023] [Accepted: 10/03/2023] [Indexed: 10/15/2023]
Abstract
Iron (Fe) is necessary for plant growth and development. The mechanism of uptake and translocation in Cadmium (Cd) is similar to iron, which shares iron transporters. Yellow stripe-like transporter (YSL) plays a pivotal role in transporting iron and other metal ions in plants. In this study, MsYSL6 and its promoter were cloned from leguminous forage alfalfa. The transient expression of MsYSL6-GFP indicated that MsYSL6 was localized to the plasma membrane and cytoplasm. The expression of MsYSL6 was induced in alfalfa by iron deficiency and Cd stress, which was further proved by GUS activity driven by the MsYSL6 promoter. To further identify the function of MsYSL6, it was heterologously overexpressed in tobacco. MsYSL6-overexpressed tobacco showed better growth and less oxidative damage than WT under Cd stress. MsYSL6 overexpression elevated Fe and Cd contents and induced a relatively high Fe translocation rate in tobacco under Cd stress. The results suggest that MsYSL6 might have a dual function in the absorption of Fe and Cd, playing a role in the competitive absorption between Fe and Cd. MsYSL6 might be a regulatory factor in plants to counter Cd stress. This study provides a novel gene for application in heavy metal enrichment or phytoremediation and new insights into plant tolerance to toxic metals.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Dong-Lin Guo
- Heilongjiang Provincial Key Laboratory of Molecular Cell Genetics and Genetic Breeding, College of Life Science and Technology, Harbin Normal University, Harbin 150025, China; (M.Z.); (M.-H.C.); (H.L.); (Y.-J.S.); (Y.B.); (J.-Y.G.); (J.-X.Z.); (X.-Y.D.)
| | - Chang-Hong Guo
- Heilongjiang Provincial Key Laboratory of Molecular Cell Genetics and Genetic Breeding, College of Life Science and Technology, Harbin Normal University, Harbin 150025, China; (M.Z.); (M.-H.C.); (H.L.); (Y.-J.S.); (Y.B.); (J.-Y.G.); (J.-X.Z.); (X.-Y.D.)
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11
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Shehzad J, Khan I, Zaheer S, Farooq A, Chaudhari SK, Mustafa G. Insights into heavy metal tolerance mechanisms of Brassica species: physiological, biochemical, and molecular interventions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:108448-108476. [PMID: 37924172 DOI: 10.1007/s11356-023-29979-4] [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: 05/02/2023] [Accepted: 09/15/2023] [Indexed: 11/06/2023]
Abstract
Heavy metal (HM) contamination of soil due to anthropogenic activities has led to bioaccumulation and biomagnification, posing toxic effects on plants by interacting with vital cellular biomolecules such as DNA and proteins. Brassica species have developed complex physiological, biochemical, and molecular mechanisms for adaptability, tolerance, and survival under these conditions. This review summarizes the HM tolerance strategies of Brassica species, covering the role of root exudates, microorganisms, cell walls, cell membranes, and organelle-specific proteins. The first line of defence against HM stress in Brassica species is the avoidance strategy, which involves metal ion precipitation, root sorption, and metal exclusion. The use of plant growth-promoting microbes, Pseudomonas, Psychrobacter, and Rhizobium species effectively immobilizes HMs and reduces their uptake by Brassica roots. The roots of Brassica species efficiently detoxify metals, particularly by flavonoid glycoside exudation. The composition of the cell wall and callose deposition also plays a crucial role in enhancing HMs resistance in Brassica species. Furthermore, plasma membrane-associated transporters, BjCET, BjPCR, BjYSL, and BnMTP, reduce HM concentration by stimulating the efflux mechanism. Brassica species also respond to stress by up-regulating existing protein pools or synthesizing novel proteins associated with HM stress tolerance. This review provides new insights into the HM tolerance mechanisms of Brassica species, which are necessary for future development of HM-resistant crops.
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Affiliation(s)
- Junaid Shehzad
- Department of Plant Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Ilham Khan
- Department of Plant Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Saira Zaheer
- Department of Plant Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Atikah Farooq
- Department of Plant Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Sunbal Khalil Chaudhari
- Institute of Molecular Biology and Biotechnology, The University of Lahore, Sargodha Campus, Sargodha, 42100, Pakistan
| | - Ghazala Mustafa
- Department of Plant Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan.
- Lishui Institute of Agriculture and Forestry Sciences, Lishui, 323000, China.
- State Agricultural Ministry Laboratory of Horticultural Crop growth and Development, Ministry of Agri-culture, Department of Horticulture, Zhejiang University, Hangzhou, 310058, China.
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12
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Mustafa A, Zulfiqar U, Mumtaz MZ, Radziemska M, Haider FU, Holatko J, Hammershmiedt T, Naveed M, Ali H, Kintl A, Saeed Q, Kucerik J, Brtnicky M. Nickel (Ni) phytotoxicity and detoxification mechanisms: A review. CHEMOSPHERE 2023; 328:138574. [PMID: 37019403 DOI: 10.1016/j.chemosphere.2023.138574] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 03/28/2023] [Accepted: 03/31/2023] [Indexed: 06/19/2023]
Abstract
Scientists studying the environment, physiology, and biology have been particularly interested in nickel (Ni) because of its dual effects (essentiality and toxicity) on terrestrial biota. It has been reported in some studies that without an adequate supply of Ni, plants are unable to finish their life cycle. The safest Ni limit for plants is 1.5 μg g-1, while the limit for soil is between 75 and 150 μg g-1. Ni at lethal levels harms plants by interfering with a variety of physiological functions, including enzyme activity, root development, photosynthesis, and mineral uptake. This review focuses on the occurrence and phytotoxicity of Ni with respect to growth, physiological and biochemical aspects. It also delves into advanced Ni detoxification mechanisms such as cellular modifications, organic acids, and chelation of Ni by plant roots, and emphasizes the role of genes involved in Ni detoxification. The discussion has been carried out on the current state of using soil amendments and plant-microbe interactions to successfully remediate Ni from contaminated sites. This review has identified potential drawbacks and difficulties of various strategies for Ni remediation, discussed the importance of these findings for environmental authorities and decision-makers, and concluded by noting the sustainability concerns and future research needs regarding Ni remediation.
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Affiliation(s)
- Adnan Mustafa
- Institute of Chemistry and Technology of Environmental Protection, Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00, Brno, Czech Republic; Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, Brno, 61300, Brno, Czech Republic; Institute for Environmental Studies, Faculty of Science, Charles University in Prague, Benatska 2, CZ12800, Praha, Czech Republic.
| | - Usman Zulfiqar
- Department of Agronomy, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan
| | - Muhammad Zahid Mumtaz
- Institute of Molecular Biology and Biotechnology, The University of Lahore, Main Campus, Defense Road, Lahore, 54000, Pakistan
| | - Maja Radziemska
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, Brno, 61300, Brno, Czech Republic; Institute of Environmental Engineering, Warsaw University of Life Sciences, 159 Nowoursynowska,02-776, Warsaw, Poland
| | - Fasih Ullah Haider
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, 510650, Guangzhou, China
| | - Jiri Holatko
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, Brno, 61300, Brno, Czech Republic; Agrovyzkum Rapotin, Ltd., Vyzkumniku 267, 788 13, Rapotin, Czech Republic
| | - Tereza Hammershmiedt
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, Brno, 61300, Brno, Czech Republic
| | - Muhammad Naveed
- Institute of Soil and Environmental Science, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Hassan Ali
- Institute of Soil and Environmental Science, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Antonin Kintl
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, Brno, 61300, Brno, Czech Republic; Agricultural Research, Ltd., 664 4, Troubsko, Czech Republic
| | - Qudsia Saeed
- Institute of Chemistry and Technology of Environmental Protection, Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00, Brno, Czech Republic
| | - Jiri Kucerik
- Institute of Chemistry and Technology of Environmental Protection, Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00, Brno, Czech Republic
| | - Martin Brtnicky
- Institute of Chemistry and Technology of Environmental Protection, Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00, Brno, Czech Republic; Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, Brno, 61300, Brno, Czech Republic.
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13
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Chen X, Yang S, Ma J, Huang Y, Wang Y, Zeng J, Li J, Li S, Long D, Xiao X, Sha L, Wu D, Fan X, Kang H, Zhang H, Zhou Y, Cheng Y. Manganese and copper additions differently reduced cadmium uptake and accumulation in dwarf Polish wheat (Triticum polonicum L.). JOURNAL OF HAZARDOUS MATERIALS 2023; 448:130998. [PMID: 36860063 DOI: 10.1016/j.jhazmat.2023.130998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 06/18/2023]
Abstract
This study investigated the effects of manganese (Mn) and copper (Cu) on dwarf Polish wheat under cadmium (Cd) stress by evaluating plant growth, Cd uptake, translocation, accumulation, subcellular distribution, and chemical forms, and the expression of genes participating in cell wall synthesis, metal chelation, and metal transport. Compared with the control, Mn deficiency and Cu deficiency increased Cd uptake and accumulation in roots, and Cd levels in root cell wall and soluble fractions, but inhibited Cd translocation to shoots. Mn addition reduced Cd uptake and accumulation in roots, and Cd level in root soluble fraction. Cu addition did not affect Cd uptake and accumulation in roots, while it caused a decrease and an increase of Cd levels in root cell wall and soluble fractions, respectively. The main Cd chemical forms (water-soluble Cd, pectates and protein integrated Cd, and undissolved Cd phosphate) in roots were differently changed. Furthermore, all treatments distinctly regulated several core genes that control the main component of root cell walls. Several Cd absorber (COPT, HIPP, NRAMP, and IRT) and exporter genes (ABCB, ABCG, ZIP, CAX, OPT, and YSL) were differently regulated to mediate Cd uptake, translocation, and accumulation. Overall, Mn and Cu differently influenced Cd uptake and accumulation; Mn addition is an effective treatment for reducing Cd accumulation in wheat.
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Affiliation(s)
- Xing Chen
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/ Triticeae Research Institute, Sichuan Agricultural University, Wenjiang 611130, Sichuan, China
| | - Shan Yang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/ Triticeae Research Institute, Sichuan Agricultural University, Wenjiang 611130, Sichuan, China
| | - Jian Ma
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/ Triticeae Research Institute, Sichuan Agricultural University, Wenjiang 611130, Sichuan, China
| | - Yiwen Huang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/ Triticeae Research Institute, Sichuan Agricultural University, Wenjiang 611130, Sichuan, China
| | - Yi Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/ Triticeae Research Institute, Sichuan Agricultural University, Wenjiang 611130, Sichuan, China.
| | - Jian Zeng
- College of Resources, Sichuan Agricultural University, Wenjiang 611130, Sichuan, China
| | - Jun Li
- Crop Research Institute, Sichuan Academy of Agricultural Sciences, Jinjiang 610066, Sichuan, China
| | - Siyu Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/ Triticeae Research Institute, Sichuan Agricultural University, Wenjiang 611130, Sichuan, China
| | - Dan Long
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/ Triticeae Research Institute, Sichuan Agricultural University, Wenjiang 611130, Sichuan, China
| | - Xue Xiao
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/ Triticeae Research Institute, Sichuan Agricultural University, Wenjiang 611130, Sichuan, China
| | - Lina Sha
- College of Grassland Science and Technology, Sichuan Agricultural University, Wenjiang 611130, Sichuan, China
| | - Dandan Wu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/ Triticeae Research Institute, Sichuan Agricultural University, Wenjiang 611130, Sichuan, China
| | - Xing Fan
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/ Triticeae Research Institute, Sichuan Agricultural University, Wenjiang 611130, Sichuan, China
| | - Houyang Kang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/ Triticeae Research Institute, Sichuan Agricultural University, Wenjiang 611130, Sichuan, China
| | - Haiqin Zhang
- College of Grassland Science and Technology, Sichuan Agricultural University, Wenjiang 611130, Sichuan, China
| | - Yonghong Zhou
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/ Triticeae Research Institute, Sichuan Agricultural University, Wenjiang 611130, Sichuan, China
| | - Yiran Cheng
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/ Triticeae Research Institute, Sichuan Agricultural University, Wenjiang 611130, Sichuan, China.
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14
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Zhang Y, Wang Z, Liu Y, Zhang T, Liu J, You Z, Huang P, Zhang Z, Wang C. Plasma membrane-associated calcium signaling modulates cadmium transport. THE NEW PHYTOLOGIST 2023; 238:313-331. [PMID: 36567524 DOI: 10.1111/nph.18698] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 12/14/2022] [Indexed: 06/17/2023]
Abstract
Cadmium (Cd) is a toxic heavy element for plant growth and development, and plants have evolved many strategies to cope with Cd stress. However, the mechanisms how plants sense Cd stress and regulate the function of transporters remain very rudimentary. Here, we found that Cd stress induces obvious Ca2+ signals in Arabidopsis roots. Furthermore, we identified the calcium-dependent protein kinases CPK21 and CPK23 that interacted with the Cd transporter NRAMP6 through a variety of protein interaction techniques. Then, we confirmed that the cpk21 23 double mutants significantly enhanced the sensitive phenotype of cpk23 single mutant under Cd stress, while the overexpression and continuous activation of CPK21 and CPK23 enhanced plants tolerance to Cd stress. Multiple biochemical and physiological analyses in yeast and plants demonstrated that CPK21/23 phosphorylate NRAMP6 primarily at Ser489 and Thr505 to inhibit the Cd transport activity of NRAMP6, thereby improving the Cd tolerance of plants. Taken together, we found a plasma membrane-associated calcium signaling that modulates Cd tolerance. These results provide new insights into the molecular breeding of crop tolerance to Cd stress.
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Affiliation(s)
- Yanting Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Zhangqing Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yisong Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Tianqi Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Jiaming Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Zhang You
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Panpan Huang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Zhenqian Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Cun Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, 712100, China
- Institute of Future Agriculture, Northwest Agriculture & Forestry University, Yangling, Shaanxi, 712100, China
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15
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Kozak K, Antosiewicz DM. Tobacco as an efficient metal accumulator. Biometals 2023; 36:351-370. [PMID: 36097238 PMCID: PMC10082116 DOI: 10.1007/s10534-022-00431-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 07/29/2022] [Indexed: 11/26/2022]
Abstract
Tobacco (Nicotiana tabacum L.) is an important industrial crop plant. However, it efficiently accumulates metals, primarily cadmium (Cd) and also zinc (Zn), in its leaves. Therefore, it could be a source of cadmium intake by smokers. On the other hand, as a high leaf metal accumulator, it is widely used for phytoremediation of metal-contaminated soil. Both issues provide an important rationale for investigating the processes regulating metal homeostasis in tobacco. This work summarizes the results of research to date on the understanding of the molecular mechanisms determining the effective uptake of Zn and Cd, their translocation into shoots and accumulation in leaves. It also discusses the current state of research to improve the phytoremediation properties of tobacco through genetic modification and to limit leaf Cd content for the tobacco industry.
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Affiliation(s)
- Katarzyna Kozak
- Department of Plant Metal Homeostasis, Faculty of Biology, Institute of Experimental Plant Biology and Biotechnology, University of Warsaw, 1 Miecznikowa Str, 02-096, Warszawa, Poland
| | - Danuta Maria Antosiewicz
- Department of Plant Metal Homeostasis, Faculty of Biology, Institute of Experimental Plant Biology and Biotechnology, University of Warsaw, 1 Miecznikowa Str, 02-096, Warszawa, Poland.
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16
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Pacheco DDR, Santana BCG, Pirovani CP, de Almeida AAF. Zinc/iron-regulated transporter-like protein gene family in Theobroma cacao L: Characteristics, evolution, function and 3D structure analysis. FRONTIERS IN PLANT SCIENCE 2023; 14:1098401. [PMID: 36925749 PMCID: PMC10012423 DOI: 10.3389/fpls.2023.1098401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
The zinc/iron-regulated transporter-like protein (ZIP) gene family first identified in plants is highly distributed in the plant kingdom. This family has previously been reported to transport several essential and non-essential cationic elements, including those toxic to many economically important crops such as cacao (Theobroma cacao L.). In this article, we present a detailed study on physicochemical properties, evolution, duplication, gene structure, promoter region and TcZIP family three-dimensional protein structure. A total of 11 TcZIP genes have been identified to encode proteins from 309 to 435 aa, with localization in the plasma membrane and chloroplast, containing 6-9 putative domains (TM). Interspecies phylogenetic analysis subdivided the ZIP proteins into four groups. Segmental duplication events significantly contributed to the expansion of TcZIP genes. These genes underwent high pressure of purifying selection. The three-dimensional structure of the proteins showed that α helix conformations are predominant with several pocket sites, containing the metal binding site, with the residues leucine (LEU), alanine (ALA), glycine (GLY), serine (SER), lysine (LYS) and histidine (HIS) the most predicted. Regarding the analysis of the protein-protein interaction and enrichment of the gene ontology, four biological processes were assigned, the most important being the cation transport. These new discoveries expand the knowledge about the function, evolution, protein structures and interaction of ZIP family proteins in cacao and contribute to develop cacao genotypes enriched with important mineral nutrients as well as genotypes that bioaccumulate or exclude toxic metals.
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17
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Huang B, Liao Q, Fu H, Ye Z, Mao Y, Luo J, Wang Y, Yuan H, Xin J. Effect of potassium intake on cadmium transporters and root cell wall biosynthesis in sweet potato. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 250:114501. [PMID: 36603483 DOI: 10.1016/j.ecoenv.2023.114501] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 12/14/2022] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
Large areas of farmland soil in southern China are deficient in potassium (K) and are contaminated with cadmium (Cd). Previously, we suggested that the K supplementation could reduce Cd accumulation in sweet potatoes (Ipomoea batatas (L.) Lam). In the present study, we investigated the underlying physiological and molecular mechanisms. A hydroponic experiment with different K and Cd treatments was performed to compare the transcriptome profile and the cell wall structure in the roots of sweet potato using RNA sequencing, Fourier transform infrared spectroscopy (FTIR) and transmission electron microscopy (TEM). The results showed that K supply inhibits the expressions of IRT1 and YSL3, which are responsible for root Cd uptake under Cd exposure. Furthermore, the expressions of COPT5 and Nramp3 were downregulated by K, which increased Cd retention in the root vacuoles. The upregulation of POD, CAD, INT1 and SUS by K contributed to lignin and cellulose biosynthesis and thickening of root xylem cell wall, which further reduced Cd translocation to the shoot. In addition, K affected the expressions of LHT, ACS, TPS and TPP associated with the production of ethylene and trehalose, which involved in plant resistance to Cd toxicity. In general, K application could decrease the uptake and translocation of Cd in sweet potatoes by regulating the expression of genes associated with Cd transporters and root cell wall components.
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Affiliation(s)
- Baifei Huang
- School of Chemical and Environmental Engineering, Hunan Institute of Technology, Hengyang 421002, China
| | - Qiong Liao
- School of Chemical and Environmental Engineering, Hunan Institute of Technology, Hengyang 421002, China
| | - Huiling Fu
- School of Chemical and Environmental Engineering, Hunan Institute of Technology, Hengyang 421002, China
| | - Ziyi Ye
- School of Chemical and Environmental Engineering, Hunan Institute of Technology, Hengyang 421002, China
| | - Yixiao Mao
- School of Chemical and Environmental Engineering, Hunan Institute of Technology, Hengyang 421002, China
| | - Jiemei Luo
- School of Chemical and Environmental Engineering, Hunan Institute of Technology, Hengyang 421002, China
| | - Yating Wang
- School of Chemical and Environmental Engineering, Hunan Institute of Technology, Hengyang 421002, China
| | - Haiwei Yuan
- Hunan Huanbaoqiao Ecology and Environment Engineering Co., Ltd., Changsha 410221, China
| | - Junliang Xin
- School of Chemical and Environmental Engineering, Hunan Institute of Technology, Hengyang 421002, China.
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18
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Sharma R, Lenaghan SC. Duckweed: a potential phytosensor for heavy metals. PLANT CELL REPORTS 2022; 41:2231-2243. [PMID: 35980444 DOI: 10.1007/s00299-022-02913-7] [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: 05/17/2022] [Accepted: 07/26/2022] [Indexed: 06/15/2023]
Abstract
Globally, heavy metal (HM) contamination is one of the primary causes of environmental pollution leading to decreased quality of life for those affected. In particular, HM contamination in groundwater poses a serious risk to human health and the potential for destabilization of aquatic ecosystems. At present, strategies to remove HM contamination from wastewater are inefficient, costly, laborious, and often the removal poses as much risk to the environment as the initial contamination. Phytoremediation, plant-based removal of contaminants from soil or water, has long been viewed as an economical and sustainable solution to remove toxic metals from the environment. However, to date, phytoremediation has demonstrated limited successes despite a large volume of literature supporting its potential. A key aspect for achieving robust and meaningful phytoremediation is the selection of a plant species that is well suited to the task. For the removal of pollutants from wastewater, hydrophytes, like duckweed, exhibit significant potential due to their rapid growth on nutrient-rich water, ease of collection, and ability to survive in various ecosystems. As a model for ecotoxicity studies, duckweed is an ideal candidate, as it is easy to cultivate under controlled and even sterile conditions, and the rapid growth enables multi-generational studies. Similarly, recent advances in the genetic engineering and genome-editing of duckweed will enable the transition from fundamental ecotoxicity studies to engineered solutions for phytoremediation of HMs. This review will provide insight into the suitability of duckweeds for phytoremediation of HMs and strategies for engineering next-generation duckweed to provide real-world environmental solutions.
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Affiliation(s)
- Reena Sharma
- Department of Food Science, University of Tennessee, 102 Food Safety and Processing Building 2600 River Dr., Knoxville, TN, 37996, USA
- Center for Agricultural Synthetic Biology, University of Tennessee Institute of Agriculture, B012 McCord Hall, 2640 Morgan Circle Drive, Knoxville, TN, 37996, USA
| | - Scott C Lenaghan
- Department of Food Science, University of Tennessee, 102 Food Safety and Processing Building 2600 River Dr., Knoxville, TN, 37996, USA.
- Center for Agricultural Synthetic Biology, University of Tennessee Institute of Agriculture, B012 McCord Hall, 2640 Morgan Circle Drive, Knoxville, TN, 37996, USA.
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19
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Advances in Genes-Encoding Transporters for Cadmium Uptake, Translocation, and Accumulation in Plants. TOXICS 2022; 10:toxics10080411. [PMID: 35893843 PMCID: PMC9332107 DOI: 10.3390/toxics10080411] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/15/2022] [Accepted: 07/20/2022] [Indexed: 12/12/2022]
Abstract
Cadmium (Cd) is a heavy metal that is highly toxic for plants, animals, and human beings. A better understanding of the mechanisms involved in Cd accumulation in plants is beneficial for developing strategies for either the remediation of Cd-polluted soils using hyperaccumulator plants or preventing excess Cd accumulation in the edible parts of crops and vegetables. As a ubiquitous heavy metal, the transport of Cd in plant cells is suggested to be mediated by transporters for essential elements such as Ca, Zn, K, and Mn. Identification of the genes encoding Cd transporters is important for understanding the mechanisms underlying Cd uptake, translocation, and accumulation in either crop or hyperaccumulator plants. Recent studies have shown that the transporters that mediate the uptake, transport, and accumulation of Cd in plants mainly include members of the natural resistance-associated macrophage protein (Nramp), heavy metal-transporting ATPase (HMA), zinc and iron regulated transporter protein (ZIP), ATP-binding cassette (ABC), and yellow stripe-like (YSL) families. Here, we review the latest advances in the research of these Cd transporters and lay the foundation for a systematic understanding underlying the molecular mechanisms of Cd uptake, transport, and accumulation in plants.
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20
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Wang C, Wang X, Li J, Guan J, Tan Z, Zhang Z, Shi G. Genome-Wide Identification and Transcript Analysis Reveal Potential Roles of Oligopeptide Transporter Genes in Iron Deficiency Induced Cadmium Accumulation in Peanut. FRONTIERS IN PLANT SCIENCE 2022; 13:894848. [PMID: 35646039 PMCID: PMC9131082 DOI: 10.3389/fpls.2022.894848] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 04/05/2022] [Indexed: 05/31/2023]
Abstract
The oligopeptide transporter (OPT) family is a group of proton-coupled symporters that play diverse roles, including metal homeostasis. However, little is known about this family of peanuts. To reveal the potential roles of AhOPT genes in Fe/Cd interactions, peanut AhOPT genes were genome-widely identified, and the relationships between gene expression and Cd accumulation were detected in two contrasting peanut cultivars (Fenghua 1 and Silihong) under Fe-sufficient or Fe-deficient conditions. A total of 40 AhOPT genes were identified in peanuts, which were divided into two subfamilies (PT and YS). Most AhOPT genes underwent gene duplication events predominated by whole-genome duplication. Clustered members generally have similar protein structures. However, gene structural divergences occurred in most of the duplicated genes. Transcription analysis revealed that AhOPT3.2/3.4 and AhYSL3.1/3.2 might be responsible for Fe deficiency tolerance, while AhOPT3.1/3.4, AhOPT7.1/7.2, and AhYSL1.1 be involved in Fe/Cd interactions. These genes might be regulated by transcription factors, including ATHB-12, ATHB-6, DIVARICATA, MYB30, NAC02, DOF3.4, IDD7, and LUX. Reduced expressions of AhYSL3.1/3.2 and higher expressions of AhOPT3.4 might contribute to higher Fe-deficiency tolerance in Silihong. Higher expression of AhOPT7.3 and AhOPT6.1 might be responsible for low Cd accumulation in Fenghua 1. Our results confirmed that AhOPT3/6/7 and AhYSL1/3 might be involved in the transport of Fe and/or Cd in peanuts and provided new clues to understanding potential mechanisms of Fe/Cd interactions.
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Han L, Wu X, Zhang X, Hou K, Zhang H, Shen C. Identification and functional analysis of cation-efflux transporter 1 from Brassica juncea L. BMC PLANT BIOLOGY 2022; 22:174. [PMID: 35387616 PMCID: PMC8985314 DOI: 10.1186/s12870-022-03569-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 03/31/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Brassica juncea behaves as a moderate-level accumulator of various heavy metal ions and is frequently used for remediation. To investigate the roles of metal ion transporters in B. juncea, a cation-efflux family gene, BjCET1, was cloned and functionally characterized. RESULTS BjCET1 contains 382 amino acid residues, including a signature motif of the cation diffusion facilitator protein family, six classic trans-membrane-spanning structures and a cation-efflux domain. A phylogenetic analysis showed that BjCET1 has a high similarity level with metal tolerance proteins from other Brassica plants, indicating that this protein family is highly conserved in Brassica. BjCET1 expression significantly increased at very early stages during both cadmium and zinc treatments. Green fluorescence detection in transgenic tobacco leaves revealed that BjCET1 is a plasma membrane-localized protein. The heterologous expression of BjCET1 in a yeast mutant increased the heavy-metal tolerance and decreased the cadmium or zinc accumulations in yeast cells, suggesting that BjCET1 is a metal ion transporter. The constitutive expression of BjCET1 rescued the heavy-metal tolerance capability of transgenic tobacco plants. CONCLUSIONS The data suggest that BjCET1 is a membrane-localized efflux transporter that plays essential roles in heavy metal ion homeostasis and hyper-accumulation.
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Affiliation(s)
- Lu Han
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036 China
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036 Zhejiang China
| | - Xiaohua Wu
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036 China
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036 Zhejiang China
| | - Xinyu Zhang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036 China
- Zhejiang Key Laboratory of Organ Development and Regeneration, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036 Zhejiang China
| | - Kailin Hou
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036 China
- Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou, 310036 China
| | - Hongshan Zhang
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036 China
- Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou, 310036 China
| | - Chenjia Shen
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036 China
- Zhejiang Provincial Key Laboratory for Genetic Improvement and Quality Control of Medicinal Plants, Hangzhou Normal University, Hangzhou, 310036 China
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22
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Yang Z, Yang F, Liu JL, Wu HT, Yang H, Shi Y, Liu J, Zhang YF, Luo YR, Chen KM. Heavy metal transporters: Functional mechanisms, regulation, and application in phytoremediation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 809:151099. [PMID: 34688763 DOI: 10.1016/j.scitotenv.2021.151099] [Citation(s) in RCA: 60] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 10/15/2021] [Accepted: 10/16/2021] [Indexed: 05/22/2023]
Abstract
Heavy metal pollution in soil is a global problem with serious impacts on human health and ecological security. Phytoextraction in phytoremediation, in which plants uptake and transport heavy metals (HMs) to the tissues of aerial parts, is the most environmentally friendly method to reduce the total amount of HMs in soil and has wide application prospects. However, the molecular mechanism of phytoextraction is still under investigation. The uptake, translocation, and retention of HMs in plants are mainly mediated by a variety of transporter proteins. A better understanding of the accumulation strategy of HMs via transporters in plants is a prerequisite for the improvement of phytoextraction. In this review, the biochemical structure and functions of HM transporter families in plants are systematically summarized, with emphasis on their roles in phytoremediation. The accumulation mechanism and regulatory pathways related to hormones, regulators, and reactive oxygen species (ROS) of HMs concerning these transporters are described in detail. Scientific efforts and practices for phytoremediation carried out in recent years suggest that creation of hyperaccumulators by transgenic or gene editing techniques targeted to these transporters and their regulators is the ultimate powerful path for the phytoremediation of HM contaminated soils.
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Affiliation(s)
- Zi Yang
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Fan Yang
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jia-Lan Liu
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Hai-Tao Wu
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Hao Yang
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Yi Shi
- Guangdong Kaiyuan Environmental Technology Co., Ltd, Dongguan 523000, China
| | - Jie Liu
- Guangdong Kaiyuan Environmental Technology Co., Ltd, Dongguan 523000, China
| | - Yan-Feng Zhang
- Hybrid Rapeseed Research Center of Shaanxi Province, Yangling 712100, Shaanxi, China
| | - Yan-Rong Luo
- Guangdong Kaiyuan Environmental Technology Co., Ltd, Dongguan 523000, China.
| | - Kun-Ming Chen
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Northwest A&F University, Yangling 712100, Shaanxi, China.
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23
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Physiological and Gene Expression Responses of Six Annual Ryegrass Cultivars to Cobalt, Lead, and Nickel Stresses. Int J Mol Sci 2021; 22:ijms222413583. [PMID: 34948380 PMCID: PMC8704220 DOI: 10.3390/ijms222413583] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/14/2021] [Accepted: 12/15/2021] [Indexed: 11/17/2022] Open
Abstract
Heavy metals negatively affect soil quality and crop growth. In this study, we compared the tolerance of six ryegrass cultivars to cobalt (Co2+), lead (Pb2+), and nickel (Ni2+) stresses by analyzing their physiological indexes and transcript levels of genes encoding metal transporters. Compared with the other cultivars, the cultivar Lm1 showed higher germination rates and better growth under Co2+, Pb2+, or Ni2+ treatments. After 48 h of Co2+ treatment, the total antioxidant capacity of all six ryegrass cultivars was significantly increased, especially that of Lm1. In contrast, under Pb2+ stress, total antioxidant capacity of five cultivars was significantly decreased, but that of Lm1 was unaffected at 24 h. Staining with Evans blue dye showed that the roots of Lm1 were less injured than were roots of the other five ryegrass cultivars by Co2+, Pb2+, and Ni2+. Lm1 translocated and accumulated lesser Co2+, Pb2+, and Ni2+ than other cultivars. In Lm1, genes encoding heavy metal transporters were differentially expressed between the shoots and roots in response to Co2+, Pb2+, and Ni2+. The aim of these researches could help find potential resource for phytoremediation of heavy metal contamination soil. The identified genes related to resistance will be useful targets for molecular breeding.
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24
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Kumar A, Jigyasu DK, Kumar A, Subrahmanyam G, Mondal R, Shabnam AA, Cabral-Pinto MMS, Malyan SK, Chaturvedi AK, Gupta DK, Fagodiya RK, Khan SA, Bhatia A. Nickel in terrestrial biota: Comprehensive review on contamination, toxicity, tolerance and its remediation approaches. CHEMOSPHERE 2021; 275:129996. [PMID: 33647680 DOI: 10.1016/j.chemosphere.2021.129996] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 02/12/2021] [Accepted: 02/15/2021] [Indexed: 06/12/2023]
Abstract
Nickel (Ni) has been a subject of interest for environmental, physiological, biological scientists due to its dual effect (toxicity and essentiality) in terrestrial biota. In general, the safer limit of Ni is 1.5 μg g-1 in plants and 75-150 μg g-1 in soil. Litreature review indicates that Ni concentrations have been estimated up to 26 g kg-1 in terrestrial, and 0.2 mg L-1 in aquatic resources. In case of vegetables and fruits, mean Ni content has been reported in the range of 0.08-0.26 and 0.03-0.16 mg kg-1. Considering, Ni toxicity and its potential health hazards, there is an urgent need to find out the suitable remedial approaches. Plant vascular (>80%) and cortical (<20%) tissues are the major sequestration site (cation exchange) of absorbed Ni. Deciphering molecular mechanisms in transgenic plants have immense potential for enhancing Ni phytoremediation and microbial remediation efficiency. Further, it has been suggested that integrated bioremediation approaches have a potential futuristic path for Ni decontamination in natural resources. This systematic review provides insight on Ni effects on terrestrial biota including human and further explores its transportation, bioaccumulation through food chain contamination, human health hazards, and possible Ni remediation approaches.
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Affiliation(s)
- Amit Kumar
- School of Hydrology and Water Resources, Nanjing University of Information Science and Technology, Nanjing, Jiangsu, 210044, China
| | - Dharmendra K Jigyasu
- Central Muga Eri Research and Training Institute, Central Silk Board, Jorhat, Assam, 785700, India.
| | - Amit Kumar
- Central Muga Eri Research and Training Institute, Central Silk Board, Jorhat, Assam, 785700, India.
| | - Gangavarapu Subrahmanyam
- Central Muga Eri Research and Training Institute, Central Silk Board, Jorhat, Assam, 785700, India.
| | - Raju Mondal
- Central Sericultural Germplasm Resources Centre (CSGRC), Central Silk Board, Ministry of Textiles, Thally Road, Hosur, Tamil Nadu, 635109, India.
| | - Aftab A Shabnam
- Central Muga Eri Research and Training Institute, Central Silk Board, Jorhat, Assam, 785700, India.
| | - M M S Cabral-Pinto
- Department of Geosciences, Geobiotec Research Centre, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Sandeep K Malyan
- Research Management and Outreach Division, National Institute of Hydrology, Jalvigyan Bhawan, Roorkee, Uttarakhand, 247667, India.
| | - Ashish K Chaturvedi
- Land and Water Management Research Group, Centre for Water Resources Development and Management, Kozhikode, Kerala, 673571, India.
| | - Dipak Kumar Gupta
- ICAR-Central Arid Zone Research Institute Regional Research Station Pali Marwar, Rajasthan, 342003, India.
| | - Ram Kishor Fagodiya
- Division of Irrigation and Drainage Engineering, ICAR-Central Soil Salinity Research Institute, Karnal, Haryana, 132001, India.
| | - Shakeel A Khan
- Centre for Environment Science and Climate Resilient Agriculture, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
| | - Arti Bhatia
- Centre for Environment Science and Climate Resilient Agriculture, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
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25
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Yang GL, Zheng MM, Tan AJ, Liu YT, Feng D, Lv SM. Research on the Mechanisms of Plant Enrichment and Detoxification of Cadmium. BIOLOGY 2021; 10:biology10060544. [PMID: 34204395 PMCID: PMC8234526 DOI: 10.3390/biology10060544] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 06/09/2021] [Accepted: 06/11/2021] [Indexed: 11/16/2022]
Abstract
The heavy metal cadmium (Cd), as one of the major environmentally toxic pollutants, has serious impacts on the growth, development, and physiological functions of plants and animals, leading to deterioration of environmental quality and threats to human health. Research on how plants absorb and transport Cd, as well as its enrichment and detoxification mechanisms, is of great significance to the development of phytoremediation technologies for ecological and environmental management. This article summarises the research progress on the enrichment of heavy metal cadmium in plants in recent years, including the uptake, transport, and accumulation of Cd in plants. The role of plant roots, compartmentalisation, chelation, antioxidation, stress, and osmotic adjustment in the process of plant Cd enrichment are discussed. Finally, problems are proposed to provide a more comprehensive theoretical basis for the further application of phytoremediation technology in the field of heavy metal pollution.
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Affiliation(s)
- Gui-Li Yang
- College of Life Sciences, Guizhou University, Guiyang 550025, China; (G.-L.Y.); (M.-M.Z.); (A.-J.T.); (Y.-T.L.); (D.F.)
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
| | - Meng-Meng Zheng
- College of Life Sciences, Guizhou University, Guiyang 550025, China; (G.-L.Y.); (M.-M.Z.); (A.-J.T.); (Y.-T.L.); (D.F.)
| | - Ai-Juan Tan
- College of Life Sciences, Guizhou University, Guiyang 550025, China; (G.-L.Y.); (M.-M.Z.); (A.-J.T.); (Y.-T.L.); (D.F.)
| | - Yu-Ting Liu
- College of Life Sciences, Guizhou University, Guiyang 550025, China; (G.-L.Y.); (M.-M.Z.); (A.-J.T.); (Y.-T.L.); (D.F.)
| | - Dan Feng
- College of Life Sciences, Guizhou University, Guiyang 550025, China; (G.-L.Y.); (M.-M.Z.); (A.-J.T.); (Y.-T.L.); (D.F.)
| | - Shi-Ming Lv
- College of Animal Science, Guizhou University, Guiyang 550025, China
- Correspondence: ; Tel.: +86-1376-513-6919
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26
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Kamenya SN, Mikwa EO, Song B, Odeny DA. Genetics and breeding for climate change in Orphan crops. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2021; 134:1787-1815. [PMID: 33486565 PMCID: PMC8205878 DOI: 10.1007/s00122-020-03755-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 12/16/2020] [Indexed: 05/17/2023]
Abstract
Climate change is rapidly changing how we live, what we eat and produce, the crops we breed and the target traits. Previously underutilized orphan crops that are climate resilient are receiving much attention from the crops research community, as they are often the only crops left in the field after periods of extreme weather conditions. There are several orphan crops with incredible resilience to biotic and abiotic stresses. Some are nutritious, while others provide good sources of biofuel, medicine and other industrial raw materials. Despite these benefits, orphan crops are still lacking in important genetic and genomic resources that could be used to fast track their improvement and make their production profitable. Progress has been made in generating draft genomes of at least 28 orphan crops over the last decade, thanks to the reducing cost of sequencing. The implementation of a structured breeding program that takes advantage of additional modern crop improvement tools such as genomic selection, speed breeding, genome editing, high throughput phenotyping and breeding digitization would make rapid improvement of these orphan crops possible, but would require coordinated research investment. Other production challenges such as lack of adequate germplasm conservation, poor/non-existent seed systems and agricultural extension services, as well as poor marketing channels will also need to be improved if orphan crops were to be profitable. We review the importance of breeding orphan crops under the increasing effects of climate change, highlight existing gaps that need to be addressed and share some lessons to be learned from major crops.
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Affiliation(s)
- Sandra Ndagire Kamenya
- African Center of Excellence in Agroecology and Livelihood Systems, Uganda Martyrs University, Kampala, Uganda
| | - Erick Owuor Mikwa
- The International Crops Research Institute for the Semi-Arid Tropics - Eastern and Southern Africa, Nairobi, Kenya
| | - Bo Song
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute At Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518060, People's Republic of China.
| | - Damaris Achieng Odeny
- The International Crops Research Institute for the Semi-Arid Tropics - Eastern and Southern Africa, Nairobi, Kenya.
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27
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Haider FU, Liqun C, Coulter JA, Cheema SA, Wu J, Zhang R, Wenjun M, Farooq M. Cadmium toxicity in plants: Impacts and remediation strategies. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 211:111887. [PMID: 33450535 DOI: 10.1016/j.ecoenv.2020.111887] [Citation(s) in RCA: 446] [Impact Index Per Article: 148.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 12/21/2020] [Accepted: 12/30/2020] [Indexed: 05/02/2023]
Abstract
Cadmium (Cd) is an unessential trace element in plants that is ubiquitous in the environment. Anthropogenic activities such as disposal of urban refuse, smelting, mining, metal manufacturing, and application of synthetic phosphate fertilizers enhance the concentration of Cd in the environment and are carcinogenic to human health. In this manuscript, we reviewed the sources of Cd contamination to the environment, soil factors affecting the Cd uptake, the dynamics of Cd in the soil rhizosphere, uptake mechanisms, translocation, and toxicity of Cd in plants. In crop plants, the toxicity of Cd reduces uptake and translocation of nutrients and water, increases oxidative damage, disrupts plant metabolism, and inhibits plant morphology and physiology. In addition, the defense mechanism in plants against Cd toxicity and potential remediation strategies, including the use of biochar, minerals nutrients, compost, organic manure, growth regulators, and hormones, and application of phytoremediation, bioremediation, and chemical methods are also highlighted in this review. This manuscript may help to determine the ecological importance of Cd stress in interdisciplinary studies and essential remediation strategies to overcome the contamination of Cd in agricultural soils.
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Affiliation(s)
- Fasih Ullah Haider
- College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou 730070, China; Gansu Provincial Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Cai Liqun
- College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou 730070, China; Gansu Provincial Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China.
| | - Jeffrey A Coulter
- Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, MN 55108, USA
| | - Sardar Alam Cheema
- Department of Agronomy, University of Agriculture, Faisalabad 38040, Pakistan
| | - Jun Wu
- College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou 730070, China; Gansu Provincial Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Renzhi Zhang
- College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou 730070, China; Gansu Provincial Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Ma Wenjun
- College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou 730070, China; Gansu Provincial Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Muhammad Farooq
- Department of Agronomy, University of Agriculture, Faisalabad 38040, Pakistan; Department of Plant Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Al-Khoud 123, Oman.
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28
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Zang J, Huo Y, Liu J, Zhang H, Liu J, Chen H. Maize YSL2 is required for iron distribution and development in kernels. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:5896-5910. [PMID: 32687576 DOI: 10.1093/jxb/eraa332] [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: 04/20/2020] [Accepted: 07/13/2020] [Indexed: 05/22/2023]
Abstract
Iron (Fe) is an essential micronutrient and plays an irreplaceable role in plant growth and development. Although its uptake and translocation are important biological processes, little is known about the molecular mechanism of Fe translocation within seed. Here, we characterized a novel small kernel mutant yellow stripe like 2 (ysl2) in maize (Zea mays). ZmYSL2 was predominantly expressed in developing endosperm and was found to encode a plasma membrane-localized metal-nicotianamine (NA) transporter ZmYSL2. Analysis of transporter activity revealed ZmYSL2-mediated Fe transport from endosperm to embryo during kernel development. Dysfunction of ZmYSL2 resulted in the imbalance of Fe homeostasis and abnormality of protein accumulation and starch deposition in the kernel. Significant changes of nitric oxide accumulation, mitochondrial Fe-S cluster content, and mitochondrial morphology indicated that the proper function of mitochondria was also affected in ysl2. Collectively, our study demonstrated that ZmYSL2 had a pivotal role in mediating Fe distribution within the kernel and kernel development in maize.
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Affiliation(s)
- Jie Zang
- State Key Laboratory of Plant Cell and Chromosome Engineering, Innovative Academy of Seed Design, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yanqing Huo
- State Key Laboratory of Plant Cell and Chromosome Engineering, Innovative Academy of Seed Design, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jie Liu
- State Key Laboratory of Plant Cell and Chromosome Engineering, Innovative Academy of Seed Design, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Huairen Zhang
- State Key Laboratory of Plant Cell and Chromosome Engineering, Innovative Academy of Seed Design, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Juan Liu
- State Key Laboratory of Plant Cell and Chromosome Engineering, Innovative Academy of Seed Design, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
| | - Huabang Chen
- State Key Laboratory of Plant Cell and Chromosome Engineering, Innovative Academy of Seed Design, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China
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29
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Ismael MA, Elyamine AM, Moussa MG, Cai M, Zhao X, Hu C. Cadmium in plants: uptake, toxicity, and its interactions with selenium fertilizers. Metallomics 2020; 11:255-277. [PMID: 30632600 DOI: 10.1039/c8mt00247a] [Citation(s) in RCA: 261] [Impact Index Per Article: 65.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Cd is the third major contaminant of greatest hazard to the environment after mercury and lead and is considered as the only metal that poses health risks to both humans and animals at plant tissue concentrations that are generally not phytotoxic. Cd accumulation in plant shoots depends on Cd entry through the roots, sequestration within root vacuoles, translocation in the xylem and phloem, and Cd dilution within the plant shoot throughout its growth. Several metal transporters, processes, and channels are involved from the first step of Cd reaching the root cells and until its final accumulation in the edible parts of the plant. It is hard to demonstrate one step as the pivotal factor to decide the Cd tolerance or accumulation ability of plants since the role of a specific transporter/process varies among plant species and even cultivars. In this review, we discuss the sources of Cd pollutants, Cd toxicity to plants, and mechanisms of Cd uptake and redistribution in plant tissues. The metal transporters involved in Cd transport within plant tissues are also discussed and how their manipulation can control Cd uptake and/or translocation. Finally, we discuss the beneficial effects of Se on plants under Cd stress, and how it can minimize or mitigate Cd toxicity in plants.
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Affiliation(s)
- Marwa A Ismael
- Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, Research Center of Trace Elements, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China.
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30
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Fu HL, Wang XS, Huang YY, Gong FY, Guo JJ, He CT, Yang ZY. Screening of the proteins related to the cultivar-dependent cadmium accumulation of Brassica parachinensis L. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 188:109858. [PMID: 31706236 DOI: 10.1016/j.ecoenv.2019.109858] [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: 07/04/2019] [Revised: 09/20/2019] [Accepted: 10/22/2019] [Indexed: 06/10/2023]
Abstract
Cultivar-dependent cadmium (Cd) accumulation was principal in developing Cd-pollution safe cultivars (PSCs). Proteins related to different Cd accumulations of the low-Cd-accumulating (SJ19) and high-Cd-accumulating (CX4) cultivars were investigated by iTRAQ analysis. Higher Cd bioaccumulation factors and translocation factor in CX4 than in SJ19 were consistent with the cultivar-dependent Cd accumulations. The Cd uptake was promoted in CX4 due to its higher expression of Cd-binding proteins and the lower expression of Cd-efflux proteins in roots. What's more, significantly elevated thiol groups (PC2 and PC3) in CX4 under Cd stress might contribute to the high Cd accumulation in roots and the root-to-shoot translocation of Cd-PC complex. Up-regulated proteins involved in cellulose biosynthesis and pectin de-esterification in SJ19 enhanced the Cd sequestration of root cell walls, which was considered as the predominant strategy for reducing Cd accumulation in shoots. The present study provided novel insights in the cultivar-dependent Cd accumulation in shoots of B. parachinensis.
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Affiliation(s)
- Hui-Ling Fu
- State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Xingang Xi Road 135, Guangzhou, 510275, China
| | - Xue-Song Wang
- State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Xingang Xi Road 135, Guangzhou, 510275, China
| | - Ying-Ying Huang
- State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Xingang Xi Road 135, Guangzhou, 510275, China; School of Safety and Environmental Engineering, Hunan Institute of Technology, Hengyang, 421002, China
| | - Fei-Yue Gong
- State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Xingang Xi Road 135, Guangzhou, 510275, China
| | - Jing-Jie Guo
- State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Xingang Xi Road 135, Guangzhou, 510275, China
| | - Chun-Tao He
- State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Xingang Xi Road 135, Guangzhou, 510275, China.
| | - Zhong-Yi Yang
- State Key Laboratory for Biocontrol, School of Life Sciences, Sun Yat-Sen University, Xingang Xi Road 135, Guangzhou, 510275, China.
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31
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Yu R, Ma Y, Li Y, Li X, Liu C, Du X, Shi G. Comparative transcriptome analysis revealed key factors for differential cadmium transport and retention in roots of two contrasting peanut cultivars. BMC Genomics 2018; 19:938. [PMID: 30558537 PMCID: PMC6296094 DOI: 10.1186/s12864-018-5304-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 11/23/2018] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Peanut is the world's fourth largest oilseed crop that exhibits wide cultivar variations in cadmium (Cd) accumulation. To establish the mechanisms of Cd distribution and accumulation in peanut plants, eight cDNA libraries from the roots of two contrasting cultivars, Fenghua 1 (low-Cd cultivar) and Silihong (high-Cd cultivar), were constructed and sequenced by RNA-sequencing. The expression patterns of 16 candidate DEGs were validated by RT-qPCR analysis. RESULTS A total of 75,634 genes including 71,349 known genes and 4484 novel genes were identified in eight cDNA libraries, among which 6798 genes were found to be Cd-responsive DEGs and/or DEGs between these two cultivars. Interestingly, 183 DEGs encoding ion transport related proteins and 260 DEGs encoding cell wall related proteins were identified. Among these DEGs, nine metal transporter genes (PDR1, ABCC4 and ABCC15, IRT1, ZIP1, ZIP11, YSL7, DTX43 and MTP4) and nine cell wall related genes (PEs, PGIPs, GTs, XYT12 CYP450s, LACs, 4CL2, C4H and CASP5) showed higher expression in Fenghua 1 than in Silihong. CONCLUSIONS Both the metal transporters and cell wall modification might be responsible for the difference in Cd accumulation and translocation between Fenghua 1 and Silihong. These findings would be useful for further functional analysis, and reveal the molecular mechanism responsible for genotype difference in Cd accumulation.
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Affiliation(s)
- Rugang Yu
- College of Life Sciences, Huaibei Normal University, Huaibei, Anhui, 235000, People's Republic of China
| | - Yuanyuan Ma
- College of Life Sciences, Huaibei Normal University, Huaibei, Anhui, 235000, People's Republic of China
| | - Yue Li
- College of Life Sciences, Huaibei Normal University, Huaibei, Anhui, 235000, People's Republic of China
| | - Xin Li
- College of Life Sciences, Huaibei Normal University, Huaibei, Anhui, 235000, People's Republic of China
| | - Caifeng Liu
- College of Life Sciences, Huaibei Normal University, Huaibei, Anhui, 235000, People's Republic of China
| | - Xueling Du
- College of Life Sciences, Huaibei Normal University, Huaibei, Anhui, 235000, People's Republic of China
| | - Gangrong Shi
- College of Life Sciences, Huaibei Normal University, Huaibei, Anhui, 235000, People's Republic of China.
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32
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Feng Y, Wu Y, Zhang J, Meng Q, Wang Q, Ma L, Ma X, Yang X. Ectopic expression of SaNRAMP3 from Sedum alfredii enhanced cadmium root-to-shoot transport in Brassica juncea. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 156:279-286. [PMID: 29567508 DOI: 10.1016/j.ecoenv.2018.03.031] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 03/05/2018] [Accepted: 03/07/2018] [Indexed: 06/08/2023]
Abstract
SaNRAMP3 gene cloned from a Zn/Cd hyperaccumulator Sedum alfredii was ectopicly expressed in Brassica juncea, a fast-growing and high-biomass crop plant. In a tissue culture experiment, transgenic plants were grown on MS medium with 0, 25, 50, 100, 200 μM Cd. It was shown that, at the same Cd treatment, the Cd tolerance of transgenic plants had no significant difference with those of wild-type plants (WT). However, the shoot Cd content and accumulation were improved significantly while the root Cd content and accumulation were descended significantly by SaNRAMP3 gene expression, which obviously enhanced the Cd root-to-shoot translocation factor (TF). In the hydroponic experiment, plants were cultured in nutrition solution with 0, 2.5, 25 μM Cd. Data showed that the Cd tolerance of transgenic plants had no significant difference with that of WT under the same Cd exposure. Whereas, the shoot Cd content and accumulation was increased 1.43-1.81 times and the TF was enhanced 3.09-3.51 times by SaNRAMP3 gene expression. Those results indicated that ectopic expression of SaNRAMP3 in B. juncea didn't lead to Cd sensitivity, but enhanced Cd root-to-shoot transport, so that increased shoot Cd accumulation. This study provided a possibility to improve phytoextraction efficiency of heavy metal through gene engineering.
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Affiliation(s)
- Ying Feng
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China.
| | - Yingjie Wu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Jie Zhang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Qian Meng
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Qiong Wang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Luyao Ma
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Xiaoxiao Ma
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
| | - Xiaoe Yang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, People's Republic of China
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Koźmińska A, Wiszniewska A, Hanus-Fajerska E, Muszyńska E. Recent strategies of increasing metal tolerance and phytoremediation potential using genetic transformation of plants. PLANT BIOTECHNOLOGY REPORTS 2018; 12:1-14. [PMID: 29503668 PMCID: PMC5829118 DOI: 10.1007/s11816-017-0467-2] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 12/18/2017] [Indexed: 05/18/2023]
Abstract
Avoidance and reduction of soil contamination with heavy metals is one of the most serious global challenges. Nowadays, science offers us new opportunities of utilizing plants to extract toxic elements from the soil by means of phytoremediation. Plant abilities to uptake, translocate, and transform heavy metals, as well as to limit their toxicity, may be significantly enhanced via genetic engineering. This paper provides a comprehensive review of recent strategies aimed at the improvement of plant phytoremediation potential using plant transformation and employing current achievements in nuclear and cytoplasmic genome transformation. Strategies for obtaining plants suitable for effective soil clean-up and tolerant to excessive concentrations of heavy metals are critically assessed. Promising directions in genetic manipulations, such as gene silencing and cis- and intragenesis, are also discussed. Moreover, the ways of overcoming disadvantages of phytoremediation using genetic transformation approachare proposed. The knowledge gathered here could be useful for designing new research aimed at biotechnological improvement of phytoremediation efficiency.
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Affiliation(s)
- Aleksandra Koźmińska
- Institute of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Al. 29 Listopada 54, 31-425 Kraków, Poland
| | - Alina Wiszniewska
- Institute of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Al. 29 Listopada 54, 31-425 Kraków, Poland
| | - Ewa Hanus-Fajerska
- Institute of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Krakow, Al. 29 Listopada 54, 31-425 Kraków, Poland
| | - Ewa Muszyńska
- Department of Botany, Faculty of Agriculture and Biology, Warsaw University of Life Sciences (SGGW), Nowoursynowska 159, Building 37, 02-776 Warsaw, Poland
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Liu Y, Yu X, Feng Y, Zhang C, Wang C, Zeng J, Huang Z, Kang H, Fan X, Sha L, Zhang H, Zhou Y, Gao S, Chen Q. Physiological and transcriptome response to cadmium in cosmos (Cosmos bipinnatus Cav.) seedlings. Sci Rep 2017; 7:14691. [PMID: 29089633 PMCID: PMC5665871 DOI: 10.1038/s41598-017-14407-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Accepted: 10/09/2017] [Indexed: 01/24/2023] Open
Abstract
To date, several species of Asteraceae have been considered as Cd-accumulators. However, little information on the Cd tolerance and associated mechanisms of Asteraceae species Cosmos bipinnatus, is known. Presently, several physiological indexes and transcriptome profiling under Cd stress were investigated. C. bipinnatus exhibited strong Cd tolerance and recommended as a Cd-accumulator, although the biomasses were reduced by Cd. Meanwhile, Cd stresses reduced Zn and Ca uptake, but increased Fe uptake. Subcellular distribution indicated that the vacuole sequestration in root mainly detoxified Cd under lower Cd stress. Whilst, cell wall binding and vacuole sequestration in root co-detoxified Cd under high Cd exposure. Meanwhile, 66,407 unigenes were assembled and 41,674 (62.75%) unigenes were annotated in at least one database. 2,658 DEGs including 1,292 up-regulated unigenes and 1,366 down-regulated unigenes were identified under 40 μmol/L Cd stress. Among of these DEGs, ZIPs, HMAs, NRAMPs and ABC transporters might participate in Cd uptake, translocation and accumulation. Many DEGs participating in several processes such as cell wall biosynthesis, GSH metabolism, TCA cycle and antioxidant system probably play critical roles in cell wall binding, vacuole sequestration and detoxification. These results provided a novel insight into the physiological and transcriptome response to Cd in C. bipinnatus seedlings.
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Affiliation(s)
- Yujing Liu
- Landscape Architecture, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Xiaofang Yu
- Landscape Architecture, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China.
| | - Yimei Feng
- Landscape Architecture, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Chao Zhang
- Industrial Crop Research Institute of Sichuan Academy of Agricultural Sciences, Qingbaijiang, 610300, Sichuan, China
| | - Chao Wang
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Jian Zeng
- College of Resources, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Zhuo Huang
- Landscape Architecture, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Houyang Kang
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Xing Fan
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Lina Sha
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Haiqin Zhang
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Yonghong Zhou
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Suping Gao
- Landscape Architecture, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
| | - Qibing Chen
- Landscape Architecture, Sichuan Agricultural University, Wenjiang, 611130, Sichuan, China
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Vera-Estrella R, Gómez-Méndez MF, Amezcua-Romero JC, Barkla BJ, Rosas-Santiago P, Pantoja O. Cadmium and zinc activate adaptive mechanisms in Nicotiana tabacum similar to those observed in metal tolerant plants. PLANTA 2017; 246:433-451. [PMID: 28455771 DOI: 10.1007/s00425-017-2700-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 04/22/2017] [Indexed: 06/07/2023]
Abstract
MAIN CONCLUSION Tobacco germinated and grew in the presence of high concentrations of cadmium and zinc without toxic symptoms. Evidence suggests that these ions are sequestered into the vacuole by heavy metal/H + exchanger mechanisms. Heavy metal hyperaccumulation and hypertolerance are traits shared by a small set of plants which show specialized physiological and molecular adaptations allowing them to accumulate and sequester toxic metal ions. Nicotiana tabacum was used to test its potential as a metal-accumulator in a glass house experiment. Seed germination was not affected in the presence of increasing concentrations of zinc and cadmium. Juvenile and adult plants could concentrate CdCl2 and ZnSO4 to levels exceeding those in the hydroponic growth medium and maintained or increased their leaf dry weight when treated with 0.5- or 1-mM CdCl2 or 1-mM ZnSO4 for 5 days. Accumulation of heavy metals did not affect the chlorophyll and carotenoid levels, while variable effects were observed in cell sap osmolarity. Heavy metal-dependent H+ transport across the vacuole membrane was monitored using quinacrine fluorescence quenching. Cadmium- or zinc-dependent fluorescence recovery revealed that increasing concentrations of heavy metals stimulated the activities of the tonoplast Cd2+ or Zn2+/H+ exchangers. Immunodetection of the V-ATPase subunits showed that the increased proton transport by zinc was not due to changes in protein amount. MTP1 and MTP4 immunodetection and semiquantitative RT-PCR of NtMTP1, NtNRAMP1, and NtZIP1 helped to identify the genes that are likely involved in sequestration of cadmium and zinc in the leaf and root tissue. Finally, we demonstrated that cadmium and zinc treatments induced an accumulation of zinc in leaf tissues. This study shows that N. tabacum possesses a hyperaccumulation response, and thus could be used for phytoremediation purposes.
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Affiliation(s)
- Rosario Vera-Estrella
- Instituto de Biotecnología, UNAM, A.P. 510-3, Colonia Miraval, 62250, Cuernavaca, Morelos, Mexico.
| | - María F Gómez-Méndez
- Instituto de Biotecnología, UNAM, A.P. 510-3, Colonia Miraval, 62250, Cuernavaca, Morelos, Mexico
| | - Julio C Amezcua-Romero
- Instituto de Biotecnología, UNAM, A.P. 510-3, Colonia Miraval, 62250, Cuernavaca, Morelos, Mexico
- Escuela Nacional de Estudios Superiores, Unidad León, UNAM, Blvd. UNAM 2011, Comunidad de los Tepetates, 37684, León, Guanajuato, Mexico
| | - Bronwyn J Barkla
- Southern Cross Plant Science, Southern Cross University, Lismore, NSW, 2480, Australia
| | - Paul Rosas-Santiago
- Instituto de Biotecnología, UNAM, A.P. 510-3, Colonia Miraval, 62250, Cuernavaca, Morelos, Mexico
| | - Omar Pantoja
- Instituto de Biotecnología, UNAM, A.P. 510-3, Colonia Miraval, 62250, Cuernavaca, Morelos, Mexico
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Feng S, Tan J, Zhang Y, Liang S, Xiang S, Wang H, Chai T. Isolation and characterization of a novel cadmium-regulated Yellow Stripe-Like transporter (SnYSL3) in Solanum nigrum. PLANT CELL REPORTS 2017; 36:281-296. [PMID: 27866260 DOI: 10.1007/s00299-016-2079-7] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 11/10/2016] [Indexed: 05/25/2023]
Abstract
SnYSL3 encodes a plasma-localized transporter delivering various metal-nicotianamine complexes. The expression of SnYSL3 is up-regulated by excess Cd, suggesting an important role for SnYSL3 in response to Cd stress. The Yellow Stripe-Like (YSL) transporters have been proposed to participate in metal uptake and long-range transport in model plants. In this study, we isolated and characterized a novel member of the YSL gene family, SnYSL3, from the cadmium hyperaccumulator Solanum nigrum. SnYSL3 was constitutively expressed and encodes a plasma membrane-localized protein. In situ RNA hybridization localized the SnYSL3 transcripts predominantly in vascular tissues and epidermal cells of the roots and stems, while in leaves, the mRNA levels were high in the vasculature. The SnYSL3 expression level was up-regulated by excess Cd, excess Fe and Cu deficiency. Heterologous expression of SnYSL3 in yeast revealed that SnYSL3 transports nicotianamine complexes containing Fe(II), Cu, Zn and Cd. SnYSL3 overexpression in Arabidopsis thaliana decreased Fe and Mn concentrations in the roots and increased the root-to-shoot translocation ratios of Fe and Mn. Under Cd exposure, the transgenic plants showed increased translocation ratios of Fe and Cd, but no difference was observed in Mn translocation from roots to shoots between the transgenic and wild-type lines. Although the accurate function of SnYSL3 remains to be confirmed, these results suggest that SnYSL3 is a transporter delivering a broad range of metal-nicotianamine complexes and is potentially important for the response to heavy metal stress, especially due to Cd and Fe.
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Affiliation(s)
- Shanshan Feng
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Jinjuan Tan
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Yuxiu Zhang
- Department of Biological Engineering, School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing, China
| | - Shuang Liang
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Shuqin Xiang
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Hong Wang
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China.
| | - Tuanyao Chai
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China.
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China.
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Guo H, Hong C, Xiao M, Chen X, Chen H, Zheng B, Jiang D. Real-time kinetics of cadmium transport and transcriptomic analysis in low cadmium accumulator Miscanthus sacchariflorus. PLANTA 2016; 244:1289-1302. [PMID: 27534966 DOI: 10.1007/s00425-016-2578-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Accepted: 08/01/2016] [Indexed: 05/03/2023]
Abstract
The molecular mechanism of low Cd influxes and accumulation in Miscanthus sacchariflorus is revealed by RNA sequencing technique. Soil cadmium (Cd) pollution has posed a serious threat to our soil quality and food security as well as to human health. Some wild plants exhibit high tolerance to heavy metals stress. However, mechanisms of Cd tolerance of wild plants remain to be fully clarified. In this study, we found that two Miscanthus species, Miscanthus (M.) sacchariflorus and M. floridulus, showed different Cd-tolerant mechanisms. M. sacchariflorus accumulated less Cd in both root and leaf by limiting Cd uptake from root and showed superior Cd tolerance, while M. floridulus not only absorbs more Cd from root but also transports more Cd to shoot. To investigate the molecular mechanism of different Cd uptake patterns in the two Miscanthus species, we analyzed the transcriptome of M. sacchariflorus and identified transcriptional changes in response to Cd in roots by high-throughput RNA-sequencing technology. A total of 92,985 unigenes were obtained from M. sacchariflorus root cDNA samples. Based on the assembled de novo transcriptome, 681 DEGs which included 345 upregulated and 336 downregulated genes were detected between two libraries of untreated and Cd-treated roots. Gene ontology (GO) and pathway enrichment analysis revealed that upregulated DEGs under Cd stress are predominately involved in metabolic pathway, starch and sucrose and biosynthesis of secondary metabolites and metal ion transporters. Quantitative RT-PCR was employed to compare the expression levels of some metal transport genes in roots of two Miscanthus species, and the genes involved in Cd uptake from root and transfer from root to shoot were extremely different. The results not only enrich genomic resource but also help to better understand the molecular mechanisms of Cd accumulation and tolerance in wild plants.
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Affiliation(s)
- Haipeng Guo
- State Key Laboratory of Plant Physiology and Biochemistry, Zhejiang University, Hangzhou, China
- Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, China
| | - Chuntao Hong
- Academy of Agricultural Sciences of Ningbo, Ningbo, Zhejiang, China
| | - Mengzhu Xiao
- State Key Laboratory of Plant Physiology and Biochemistry, Zhejiang University, Hangzhou, China
| | - Xiaomin Chen
- Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, China
| | - Houming Chen
- State Key Laboratory of Plant Physiology and Biochemistry, Zhejiang University, Hangzhou, China
| | - Bingsong Zheng
- Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Hangzhou, China.
| | - Dean Jiang
- State Key Laboratory of Plant Physiology and Biochemistry, Zhejiang University, Hangzhou, China.
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38
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Luo ZB, He J, Polle A, Rennenberg H. Heavy metal accumulation and signal transduction in herbaceous and woody plants: Paving the way for enhancing phytoremediation efficiency. Biotechnol Adv 2016; 34:1131-1148. [DOI: 10.1016/j.biotechadv.2016.07.003] [Citation(s) in RCA: 203] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Revised: 05/24/2016] [Accepted: 07/12/2016] [Indexed: 11/26/2022]
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Mourato MP, Moreira IN, Leitão I, Pinto FR, Sales JR, Martins LL. Effect of Heavy Metals in Plants of the Genus Brassica. Int J Mol Sci 2015; 16:17975-98. [PMID: 26247945 PMCID: PMC4581231 DOI: 10.3390/ijms160817975] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 07/13/2015] [Accepted: 07/27/2015] [Indexed: 11/16/2022] Open
Abstract
Several species from the Brassica genus are very important agricultural crops in different parts of the world and are also known to be heavy metal accumulators. There have been a large number of studies regarding the tolerance, uptake and defense mechanism in several of these species, notably Brassica juncea and B. napus, against the stress induced by heavy metals. Numerous studies have also been published about the capacity of these species to be used for phytoremediation purposes but with mixed results. This review will focus on the latest developments in the study of the uptake capacity, oxidative damage and biochemical and physiological tolerance and defense mechanisms to heavy metal toxicity on six economically important species: B. juncea, B. napus, B. oleracea, B. carinata, B. rapa and B. nigra.
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Affiliation(s)
- Miguel P Mourato
- LEAF-Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisboa, Portugal.
| | - Inês N Moreira
- LEAF-Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisboa, Portugal.
| | - Inês Leitão
- LEAF-Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisboa, Portugal.
| | - Filipa R Pinto
- LEAF-Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisboa, Portugal.
| | - Joana R Sales
- LEAF-Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisboa, Portugal.
| | - Luisa Louro Martins
- LEAF-Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa, 1349-017 Lisboa, Portugal.
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40
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Liang X, Liu Y, Xie L, Liu X, Wei Y, Zhou X, Zhang S. A ribosomal protein AgRPS3aE from halophilic Aspergillus glaucus confers salt tolerance in heterologous organisms. Int J Mol Sci 2015; 16:3058-70. [PMID: 25642759 PMCID: PMC4346880 DOI: 10.3390/ijms16023058] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 12/30/2014] [Accepted: 01/21/2015] [Indexed: 01/22/2023] Open
Abstract
High salt in soils is one of the abiotic stresses that significantly reduces crop yield, although saline lands are considered potential resources arable for agriculture. Currently, genetic engineering for enhancing salt tolerance is being tested as an efficient and viable strategy for crop improvement. We previously characterized a large subunit of the ribosomal protein RPL44, which is involved in osmotic stress in the extremely halophilic fungus Aspergillus glaucus. Here, we screened another ribosomal protein (AgRPS3aE) that also produced high-salt tolerance in yeast. Bioinformatics analysis indicated that AgRPS3aE encodes a 29.2 kDa small subunit of a ribosomal protein belonging to the RPS3Ae family in eukaryotes. To further confirm its protective function against salinity, we expressed AgRPS3aE in three heterologous systems, the filamentous fungus Magnaporthe oryzae and two model plants Arabidopsis and tobacco. Overexpression of AgRPS3aE in all tested transformants significantly alleviated stress symptoms compared with controls, suggesting that AgRPS3aE functions not only in fungi but also in plants. Considering that ribosomal proteins are housekeeping components in organisms from prokaryotes to eukaryotes, we propose that AgRPS3aE is one of the optimal genes for improving high-salt tolerance in crops.
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Affiliation(s)
- Xilong Liang
- College of Plant Sciences, Jilin University, Changchun 130062, China.
| | - Yiling Liu
- College of Plant Sciences, Jilin University, Changchun 130062, China.
| | - Lixia Xie
- College of Plant Sciences, Jilin University, Changchun 130062, China.
| | - Xiaodan Liu
- College of Plant Sciences, Jilin University, Changchun 130062, China.
| | - Yi Wei
- College of Plant Sciences, Jilin University, Changchun 130062, China.
| | - Xiaoyang Zhou
- College of Plant Sciences, Jilin University, Changchun 130062, China.
| | - Shihong Zhang
- College of Plant Sciences, Jilin University, Changchun 130062, China.
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