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Alves de Oliveira E, Cavalheiro da Silva L, Antônio de Andrade E, Dênis Battirola L, Lopes Tortorela de Andrade R. Emilia fosbergii Nicolson, a novel and effective accumulator for phytoremediation of mercury-contaminated soils. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2024; 26:1076-1086. [PMID: 38059299 DOI: 10.1080/15226514.2023.2288906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Abstract
Soil contamination by toxic metals threatens global public health, highlighting the need for cost-effective and ecologically sound site remediation. In this study, we assessed phytoremediation of Hg-contaminated soils by Emilia fosbergii Nicolson (Asteraceae). Pot experiment was conducted using a substrate of sand and vermiculite (1:1 volume ratio), treatments consisted of five Hg concentrations (0, 1, 3, 5, and 7 mg kg-1). Metal transfer rates were calculated, including accumulation (BAF), translocation (TF) and bioconcentration (BCF) factors. E. fosbergii roots exhibited greater Hg accumulation than other tissues, but biomass production and plant health were not significantly affected at the concentrations tested, as indicated by elongation factors and tolerance index. The results revealed BAF values between 2.18 and 7.14, TF values ranged between 0.15 and 0.52, and the BCF index varied between 8.97 and 26.58. Treatments with Hg content of 5 mg kg-1 and 7 mg kg-1 recorded the highest total Hg concentrations of 66 mg kg-1 and 65.53 mg kg-1 (roots), and 9.18 mg kg-1 and 33.88 mg kg-1 (aerial), respectively. E. fosbergii demonstrated promise for Hg phytoremediation due to its high accumulation capacity, indicated by regular TF and high BCF and BAF indexes, thus classifying it as a high Hg accumulator.
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Affiliation(s)
- Evandro Alves de Oliveira
- Institute of Natural, Human and Social Sciences Graduate Program in Environmental Sciences, Federal University of Mato Grosso, Mato Grosso, Brazil
| | - Larissa Cavalheiro da Silva
- Institute of Natural, Human and Social Sciences Graduate Program in Environmental Sciences, Federal University of Mato Grosso, Mato Grosso, Brazil
| | - Ednaldo Antônio de Andrade
- Institute of Natural, Human and Social Sciences Graduate Program in Environmental Sciences, Federal University of Mato Grosso, Mato Grosso, Brazil
| | - Leandro Dênis Battirola
- Institute of Natural, Human and Social Sciences Graduate Program in Environmental Sciences, Federal University of Mato Grosso, Mato Grosso, Brazil
| | - Ricardo Lopes Tortorela de Andrade
- Institute of Natural, Human and Social Sciences Graduate Program in Environmental Sciences, Federal University of Mato Grosso, Mato Grosso, Brazil
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Hussain M, Hafeez A, Rizwan M, Rasheed R, Seleiman MF, Ashraf MA, Ali S, Farooq U, Nafees M. Pervasive influence of heavy metals on metabolic pathways is potentially relieved by hesperidin to enhance the phytoremediation efficiency of Bassia scoparia. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:34526-34549. [PMID: 38709411 DOI: 10.1007/s11356-024-33530-4] [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: 01/16/2024] [Accepted: 04/27/2024] [Indexed: 05/07/2024]
Abstract
Hesperidin (HSP), a flavonoid, is a potent antioxidant, metal chelator, mediator of signaling pathways, and regulator of metal uptake in plants. The study examined the ameliorative effects of HSP (100 μM) on Bassia scoparia grown under excessive levels of heavy metals (zinc (500 mg kg-1), copper (400 mg kg-1), cadmium (100 mg kg-1), and chromium (100 mg kg-1)). The study clarifies the underlying mechanisms by which HSP lessens metabolic mayhem to enhance metal stress tolerance and phytoremediation efficiency of Bassia scoparia. Plants manifested diminished growth because of a drop in chlorophyll content and nutrient acquisition, along with exacerbated deterioration of cellular membranes reflected in elevated reactive oxygen species (ROS) production, lipid peroxidation, and relative membrane permeability. Besides the colossal production of cytotoxic methylglyoxal, the activity of lipoxygenase was also higher in plants under metal toxicity. Conversely, hesperidin suppressed the production of cytotoxic ROS and methylglyoxal. Hesperidin improved oxidative defense that protected membrane integrity. Hesperidin caused a more significant accumulation of osmolytes, non-protein thiols, and phytochelatins, thereby rendering metal ions non-toxic. Hydrogen sulfide and nitric oxide endogenous levels were intricately maintained higher in plants treated with HSP. Hesperidin increased metal accumulation in Bassia scoparia and thereby had the potential to promote the reclamation of metal-contaminated soils.
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Affiliation(s)
- Mazhar Hussain
- Department of Botany, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Arslan Hafeez
- Department of Botany, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Muhammad Rizwan
- Department of Environmental Sciences, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Rizwan Rasheed
- Department of Botany, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Mahmoud F Seleiman
- Department of Plant Production, College of Food and Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh, 11451, Saudi Arabia
| | - Muhammad Arslan Ashraf
- Department of Botany, Government College University Faisalabad, Faisalabad, 38000, Pakistan.
| | - Shafaqat Ali
- Department of Environmental Sciences, Government College University Faisalabad, Faisalabad, 38000, Pakistan
- Department of Biological Sciences and Technology, China Medical University, Taichung, 40402, Taiwan
| | - Umer Farooq
- Department of Botany, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Muhammad Nafees
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 21023, Jiangsu, China
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Wang D, Wu Q, Zhang Z. Bioaccumulation, transfer characteristics of metals in six vascular plants, and soil pollution assessment from Wachangping karst bauxite residue areas. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2024:1-11. [PMID: 38525911 DOI: 10.1080/15226514.2024.2331713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
Bauxite residue (BR) is a large volume by-product generated during bauxite smelting process and metal pollution problem is becoming increasingly prominent in residue areas. Accumulation and transfer of metals in six vascular plants were analyzed and soil environment was evaluated. Results found levels of Al (2,110-26,280 mg kg-1), Fe (990 to 9,880 mg kg-1), Ca (8,020 to 49,250 mg kg-1), Mg (2,060 to 17,190 mg kg-1), K (16,840 to 39,670 mg kg-1), and Ti (80 to 1,240 mg kg-1) in plants. Metal concentrations in soils exceeded background levels. Bioconcentration factor (BCF) found that Al, Fe, and Ti in plants (roots, stems, and leaves) were relatively depleted (BCF <1). Transfer factor (TF) of Al, Fe, Ca, K, and Ti in plants was distinctly higher than 1 and mainly concentrated in stems and leaves. Pollution indices revealed that soil environment was at moderated to serious contaminated risk. Principal components analysis (PCA) showed that Artemisia caruifolia Buch. and Siegesbeckia orientalis L. plants had a good ability to absorb Al and Fe, which can be used as biological indicators and restoration materials.Novelty statementCurrently, soil environment was exposed to moderated to serious contaminated risk from Wachangping karst bauxite residue areas.Bioconcentration factor (BCF) analysis found that Al, Fe, and Ti in six vascular plants (roots, stems, and leaves) were relatively depleted (BCF <1).Transfer factor (TF) of Al, Fe, Ca, K, and Ti in vascular plants was distinctly higher than 1, which mainly concentrated in stems and leaves.PCA revealed that Artemisia caruifolia Buch. and Siegesbeckia orientalis L. plants had a good ability to absorb Al and Fe, which can be used as biological indicators and ecological restoration materials.
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Affiliation(s)
- Dengfu Wang
- Key Laboratory for Information System of Mountainous Area and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University, Guizhou, China
| | - Qimei Wu
- Key Laboratory for Information System of Mountainous Area and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University, Guizhou, China
| | - Zhaohui Zhang
- Key Laboratory for Information System of Mountainous Area and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University, Guizhou, China
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Zhang Y, Yang C, Liu S, Xie Z, Chang H, Wu T. Phytohormones-mediated strategies for mitigation of heavy metals toxicity in plants focused on sustainable production. PLANT CELL REPORTS 2024; 43:99. [PMID: 38494540 DOI: 10.1007/s00299-024-03189-9] [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: 02/01/2024] [Accepted: 02/29/2024] [Indexed: 03/19/2024]
Abstract
KEY MESSAGE In this manuscript, authors reviewed and explore the information on beneficial role of phytohormones to mitigate adverse effects of heavy metals toxicity in plants. Global farming systems are seriously threatened by heavy metals (HMs) toxicity, which can result in decreased crop yields, impaired food safety, and negative environmental effects. A rise in curiosity has been shown recently in creating sustainable methods to reduce HMs toxicity in plants and improve agricultural productivity. To accomplish this, phytohormones, which play a crucial role in controlling plant development and adaptations to stress, have emerged as intriguing possibilities. With a particular focus on environmentally friendly farming methods, the current review provides an overview of phytohormone-mediated strategies for reducing HMs toxicity in plants. Several physiological and biochemical activities, including metal uptake, translocation, detoxification, and stress tolerance, are mediated by phytohormones, such as melatonin, auxin, gibberellin, cytokinin, ethylene, abscisic acid, salicylic acid, and jasmonates. The current review offers thorough explanations of the ways in which phytohormones respond to HMs to help plants detoxify and strengthen their resilience to metal stress. It is crucial to explore the potential uses of phytohormones as long-term solutions for reducing the harmful effects of HMs in plants. These include accelerating phytoextraction, decreasing metal redistribution to edible plant portions, increasing plant tolerance to HMs by hormonal manipulation, and boosting metal sequestration in roots. These methods seek to increase plant resistance to HMs stress while supporting environmentally friendly agricultural output. In conclusion, phytohormones present potential ways to reduce the toxicity of HMs in plants, thus promoting sustainable agriculture.
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Affiliation(s)
- Yumang Zhang
- College of Life Sciences, Changchun University of Science and Technology, Changchun, 130600, China
- College of Resources and Environment, Jilin Agricultural University, Changchun, 130118, China
| | - Chunyuan Yang
- College of Life Sciences, Changchun University of Science and Technology, Changchun, 130600, China.
| | - Shuxia Liu
- College of Resources and Environment, Jilin Agricultural University, Changchun, 130118, China.
| | - Zhonglei Xie
- College of Life Sciences, Changchun University of Science and Technology, Changchun, 130600, China
- College of Plant Science, Jilin University, Changchun, 130062, China
| | - Hongyan Chang
- College of Resources and Environment, Jilin Agricultural University, Changchun, 130118, China
| | - Tong Wu
- College of Life Sciences, Changchun University of Science and Technology, Changchun, 130600, China
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Peracchi LM, Panahabadi R, Barros-Rios J, Bartley LE, Sanguinet KA. Grass lignin: biosynthesis, biological roles, and industrial applications. FRONTIERS IN PLANT SCIENCE 2024; 15:1343097. [PMID: 38463570 PMCID: PMC10921064 DOI: 10.3389/fpls.2024.1343097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 02/06/2024] [Indexed: 03/12/2024]
Abstract
Lignin is a phenolic heteropolymer found in most terrestrial plants that contributes an essential role in plant growth, abiotic stress tolerance, and biotic stress resistance. Recent research in grass lignin biosynthesis has found differences compared to dicots such as Arabidopsis thaliana. For example, the prolific incorporation of hydroxycinnamic acids into grass secondary cell walls improve the structural integrity of vascular and structural elements via covalent crosslinking. Conversely, fundamental monolignol chemistry conserves the mechanisms of monolignol translocation and polymerization across the plant phylum. Emerging evidence suggests grass lignin compositions contribute to abiotic stress tolerance, and periods of biotic stress often alter cereal lignin compositions to hinder pathogenesis. This same recalcitrance also inhibits industrial valorization of plant biomass, making lignin alterations and reductions a prolific field of research. This review presents an update of grass lignin biosynthesis, translocation, and polymerization, highlights how lignified grass cell walls contribute to plant development and stress responses, and briefly addresses genetic engineering strategies that may benefit industrial applications.
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Affiliation(s)
- Luigi M. Peracchi
- Department of Crop and Soil Sciences, Washington State University, Pullman, WA, United States
| | - Rahele Panahabadi
- Institute of Biological Chemistry, Washington State University, Pullman, WA, United States
| | - Jaime Barros-Rios
- Division of Plant Sciences and Interdisciplinary Plant Group, University of Missouri, Columbia, MO, United States
| | - Laura E. Bartley
- Institute of Biological Chemistry, Washington State University, Pullman, WA, United States
| | - Karen A. Sanguinet
- Department of Crop and Soil Sciences, Washington State University, Pullman, WA, United States
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Anjitha KS, Sarath NG, Sameena PP, Janeeshma E, Shackira AM, Puthur JT. Plant response to heavy metal stress toxicity: the role of metabolomics and other omics tools. FUNCTIONAL PLANT BIOLOGY : FPB 2023; 50:965-982. [PMID: 37995340 DOI: 10.1071/fp23145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 10/31/2023] [Indexed: 11/25/2023]
Abstract
Metabolomic investigations offers a significant foundation for improved comprehension of the adaptability of plants to reconfigure the key metabolic pathways and their response to changing climatic conditions. Their application to ecophysiology and ecotoxicology help to assess potential risks caused by the contaminants, their modes of action and the elucidation of metabolic pathways associated with stress responses. Heavy metal stress is one of the most significant environmental hazards affecting the physiological and biochemical processes in plants. Metabolomic tools have been widely utilised in the massive characterisation of the molecular structure of plants at various stages for understanding the diverse aspects of the cellular functioning underlying heavy metal stress-responsive mechanisms. This review emphasises on the recent progressions in metabolomics in plants subjected to heavy metal stresses. Also, it discusses the possibility of facilitating effective management strategies concerning metabolites for mitigating the negative impacts of heavy metal contaminants on the growth and productivity of plants.
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Affiliation(s)
- K S Anjitha
- Plant Physiology and Biochemistry Division, Department of Botany, University of Calicut, C. U. Campus P.O., Malappuram, Kerala 673635, India
| | - Nair G Sarath
- Department of Botany, Mar Athanasius College, Kothamangalam, Ernakulam, Kerala 686666, India
| | - P P Sameena
- Department of Botany, PSMO College, Tirurangadi, Malappuram, Kerala 676306, India
| | - Edappayil Janeeshma
- Department of Botany, MES KEVEEYAM College, Valanchery, Malappuram, Kerala 676552, India
| | - A M Shackira
- Department of Botany, Sir Syed College, Kannur University, Kannur, Kerala 670142, India
| | - Jos T Puthur
- Plant Physiology and Biochemistry Division, Department of Botany, University of Calicut, C. U. Campus P.O., Malappuram, Kerala 673635, India
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Ugurlar F, Kaya C. Synergistic mitigation of nickel toxicity in pepper ( Capsicum annuum) by nitric oxide and thiourea via regulation of nitrogen metabolism and subcellular nickel distribution. FUNCTIONAL PLANT BIOLOGY : FPB 2023; 50:1099-1116. [PMID: 37875021 DOI: 10.1071/fp23122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 10/11/2023] [Indexed: 10/26/2023]
Abstract
Nickel (Ni) contamination hinders plant growth and yield. Nitric oxide (NO) and thiourea (Thi) aid plant recovery from heavy metal damage, but their combined effects on pepper (Capsicum annuum ) plant tolerance to Ni stress need more study. Sodium nitroprusside (0.1mM, SNP) and 400mgL-1 Thi, alone and combined, were studied for their impact on pepper growth under Ni toxicity. Ni stress reduces chlorophyll, PSII efficiency and leaf water and sugar content. However, SNP and Thi alleviate these effects by increasing leaf water, proline and sugar content. It also increased the activities of superoxide dismutase, catalase, ascorbate peroxidase and peroxidase. Nickel stress lowered nitrogen assimilation enzymes (nitrate reductase, nitrite reductase, glutamine synthetase, glutamate synthase and glutamate dehydrogenase) and protein content, but increased nitrate, ammonium and amino acid content. SNP and Thi enhanced nitrogen assimilation, increased protein content and improved pepper plant growth and physiological functions during Ni stress. The combined treatment reduced Ni accumulation, increased Ni in leaf cell walls and potentially in root vacuoles, and decreased Ni concentration in cell organelles. It effectively mitigated Ni toxicity to vital organelles, surpassing the effects of SNP or Thi use alone. This study provides valuable insights for addressing heavy metal contamination in agricultural soils and offers potential strategies for sustainable and eco-friendly farming practices.
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Affiliation(s)
- Ferhat Ugurlar
- Soil Science and Plant Nutrition Department, Harran University, Sanliurfa, Turkey
| | - Cengiz Kaya
- Soil Science and Plant Nutrition Department, Harran University, Sanliurfa, Turkey
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Hazarika M, Borah G, Singha WJ, Deka H. Metals stress on soil enzyme activities and herbs defense in the vicinity of high traffic roadways. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1546. [PMID: 38015337 DOI: 10.1007/s10661-023-12142-4] [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: 08/02/2023] [Accepted: 11/13/2023] [Indexed: 11/29/2023]
Abstract
This study has investigated the impact of vehicle sourced heavy metals (HMs) on soil enzyme activities and plants in and around high traffic roadways near the metropolitan area. In detail, the defense response against HM pollution was studied by considering the commonly available herbs around the roadside area namely Alternanthera paronychioides, Ageratum conyzoides, Spilanthes acmella, and Parthenium hysterophorus. The study reported that the HM concentrations such as Cu, Ni, Zn, Mn, and Cr were observed in the range of 6.05 ± 0.1 to 309 ± 0.5 mg/kg in roadside soil and 5.2 ± 0.1to 451 ± 4.2 mg/kg in the herbs collected from roadside area. The soil enzyme (urease, dehydrogenase, amylase, catalase, peroxidase, and polyphenol oxidase) activities decreased by 22.56 to 77.84% in roadside soil and lower IC50 values were observed for DPPH (2.32-4.67) and H2O2 (1.59-2.15) free radical scavenging activities in plants collected from roadside area. The flavonoid and phenolic content in plants collected from the roadside area ranges from 12.65 ± 0.2 to 15.75 ± 0.3 mg quercitin/g and 0.61 ± 0.04 to 1.16 ± 0.1 mg gallic acid/g respectively while in plant collected from the control areas ranges from 7.96 ± 0.1 to 11.24 ± 0.05 and 0.47 ± 0.01 to 0.61 ± 0.1. In addition, the contamination factor (CF) (1.53-11.92) and geo-accumulation index (Igeo) (0.031-2.99) in soil and bioaccumulation factor (BAF) (0.72-2.73) of Cu, Ni, Zn, Mn, and Crin plants indicated that the soil and plants growing along the highway were heavily contaminated with HM. Finally, Pearson correlation matrix confirmed the inhibition effect of HM on soil enzymatic activities and enzymatic defense of plants in response to the HM stress.
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Affiliation(s)
- Mridulina Hazarika
- Department of Botany, Gauhati University, Guwahati, 781014, Assam, India
| | - Glory Borah
- Department of Botany, Gauhati University, Guwahati, 781014, Assam, India
| | - W James Singha
- Department of Botany, Gauhati University, Guwahati, 781014, Assam, India
| | - Hemen Deka
- Department of Botany, Gauhati University, Guwahati, 781014, Assam, India.
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Jalil S, Nazir MM, Ali Q, Zulfiqar F, Moosa A, Altaf MA, Zaid A, Nafees M, Yong JWH, Jin X. Zinc and nano zinc mediated alleviation of heavy metals and metalloids in plants: an overview. FUNCTIONAL PLANT BIOLOGY : FPB 2023; 50:870-888. [PMID: 37598713 DOI: 10.1071/fp23021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 07/30/2023] [Indexed: 08/22/2023]
Abstract
Heavy metals and metalloids (HMs) contamination in the environment has heightened recently due to increasing global concern for food safety and human livability. Zinc (Zn2+ ) is an important nutrient required for the normal development of plants. It is an essential cofactor for the vital enzymes involved in various biological mechanisms of plants. Interestingly, Zn2+ has an additional role in the detoxification of HMs in plants due to its unique biochemical-mediating role in several soil and plant processes. During any exposure to high levels of HMs, the application of Zn2+ would confer greater plant resilience by decreasing oxidative stress, maintaining uptake of nutrients, photosynthesis productivity and optimising osmolytes concentration. Zn2+ also has an important role in ameliorating HMs toxicity by regulating metal uptake through the expression of certain metal transporter genes, targeted chelation and translocation from roots to shoots. This review examined the vital roles of Zn2+ and nano Zn in plants and described their involvement in alleviating HMs toxicity in plants. Moving forward, a broad understanding of uptake, transport, signalling and tolerance mechanisms of Zn2+ /zinc and its nanoparticles in alleviating HMs toxicity of plants will be the first step towards a wider incorporation of Zn2+ into agricultural practices.
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Affiliation(s)
- Sanaullah Jalil
- The Key Laboratory for Crop Germplasm Resource of Zhejiang Province, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | | | - Qurban Ali
- Department of Plant Breeding and Genetics, Faculty of Agricultural Sciences, Punjab University, Lahore 54590, Pakistan
| | - Faisal Zulfiqar
- Department of Horticultural Sciences, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Anam Moosa
- Department of Plant Pathology, Faculty of Agricultural and Environment, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | | | - Abbu Zaid
- Department of Botany, Government Gandhi Memorial Science College, Jammu, India
| | - Muhammad Nafees
- Department of Horticultural Sciences, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Jean Wan Hong Yong
- Department of Biosystems and Technology, Swedish University of Agricultural Sciences, Alnarp 23456, Sweden
| | - Xiaoli Jin
- The Key Laboratory for Crop Germplasm Resource of Zhejiang Province, Zhejiang University, Hangzhou, Zhejiang 310058, China
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Wang L, Zou R, Cai J, Liu G, Jiang Y, Chai G, Qin S, Fan C. Effect of Cd toxicity on root morphology, ultrastructure, Cd uptake and accumulation of wheat under intercropping with Solanum nigrum L. Heliyon 2023; 9:e16270. [PMID: 37332956 PMCID: PMC10272331 DOI: 10.1016/j.heliyon.2023.e16270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 05/10/2023] [Accepted: 05/11/2023] [Indexed: 06/20/2023] Open
Abstract
In order to evaluate the effect of intercropping of the hyperaccumulator, Solanum nigrum L. and wheat on the absorption and accumulation of cadmium (Cd) in wheat. The experiment was conducted with three replicates, which conducted on four Cd concentrations (0, 20, 40, 60 μmol L-1) in the Hoagland solution and using two planting patterns [monoculture wheat (MW), intercropping wheat and Solanum nigrum L. (IW,IS)]. The results showed that the addition of Cd in the solutions reduced the total root length by 19.08-55.98%, total root area by 12.35-44.48%, and total root volume by 16.01-46.00% of wheat plants. Intercropping with Solanum nigrum L. significantly reduced Cd contents by 28.3-47.2% and Cd accumulations by 10.08-32.43% in the roots of wheat. Transmission electron microscope (TEM) revealed that the root-tip cells of the monoculture wheat treated with Cd exhibited swollen spheres of intracellular mitochondria, disorderly arranged inner ridges of mitochondria, some damaged mitochondrial membranes, and deformed nuclear membranes. Many dense electron particles in the form of Cd were deposited in the cell gap, and the cell nucleus became smaller or even disappeared. Under the same Cd concentrations, root-tip cells of intercropped wheat showed much less density of electron particles, starch granules, and the damage to the nucleus and nuclear membrane by Cd.These results indicated that intercropping with Solanum nigrum L. reduced the Cd toxicity to wheat roots and decreased Cd uptake and accumulation in both the shoots and roots of the wheat.
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Affiliation(s)
- Li Wang
- Institute of Soil and Fertilizer, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China
| | - Rong Zou
- College of Forestry,Guizhou University, Guiyang 550025,China
| | - Jinghang Cai
- Rural Revitalization Service Centre, Guiyang 550081,China
| | - Guihua Liu
- Institute of Soil and Fertilizer, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China
| | - Ya Jiang
- Institute of Soil and Fertilizer, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China
| | - Guanqun Chai
- Institute of Soil and Fertilizer, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China
| | - Song Qin
- Institute of Soil and Fertilizer, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China
| | - Chengwu Fan
- Institute of Soil and Fertilizer, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China
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Ghuge SA, Nikalje GC, Kadam US, Suprasanna P, Hong JC. Comprehensive mechanisms of heavy metal toxicity in plants, detoxification, and remediation. JOURNAL OF HAZARDOUS MATERIALS 2023; 450:131039. [PMID: 36867909 DOI: 10.1016/j.jhazmat.2023.131039] [Citation(s) in RCA: 33] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 02/07/2023] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
Natural and anthropogenic causes are continually growing sources of metals in the ecosystem; hence, heavy metal (HM) accumulation has become a primary environmental concern. HM contamination poses a serious threat to plants. A major focus of global research has been to develop cost-effective and proficient phytoremediation technologies to rehabilitate HM-contaminated soil. In this regard, there is a need for insights into the mechanisms associated with the accumulation and tolerance of HMs in plants. It has been recently suggested that plant root architecture has a critical role in the processes that determine sensitivity or tolerance to HMs stress. Several plant species, including those from aquatic habitats, are considered good hyperaccumulators for HM cleanup. Several transporters, such as the ABC transporter family, NRAMP, HMA, and metal tolerance proteins, are involved in the metal acquisition mechanisms. Omics tools have shown that HM stress regulates several genes, stress metabolites or small molecules, microRNAs, and phytohormones to promote tolerance to HM stress and for efficient regulation of metabolic pathways for survival. This review presents a mechanistic view of HM uptake, translocation, and detoxification. Sustainable plant-based solutions may provide essential and economical means of mitigating HM toxicity.
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Affiliation(s)
- Sandip A Ghuge
- Agricultural Research Organization (ARO), The Volcani Institute, P.O. Box 15159, 7505101 Rishon LeZion, Israel
| | - Ganesh Chandrakant Nikalje
- Division of Life Science and Division of Applied Life Science (BK21 Four), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, Gyeongnam 52828, South Korea; Department of Botany, Seva Sadan's R. K. Talreja College of Arts, Science and Commerce, Affiliated to University of Mumbai, Ulhasnagar 421003, India
| | - Ulhas Sopanrao Kadam
- Division of Life Science and Division of Applied Life Science (BK21 Four), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, Gyeongnam 52828, South Korea.
| | - Penna Suprasanna
- Amity Centre for Nuclear Biotechnology, Amity Institute of Biotechnology, Amity University Maharashtra, Mumbai 410206, India
| | - Jong Chan Hong
- Division of Life Science and Division of Applied Life Science (BK21 Four), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, Gyeongnam 52828, South Korea; Division of Plant Sciences, University of Missouri, Columbia, MO 65211, USA.
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12
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Mussali-Galante P, Santoyo-Martínez M, Castrejón-Godínez ML, Breton-Deval L, Rodríguez-Solis A, Valencia-Cuevas L, Tovar-Sánchez E. The bioaccumulation potential of heavy metals by Gliricidia sepium (Fabaceae) in mine tailings. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:38982-38999. [PMID: 36595178 DOI: 10.1007/s11356-022-24904-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 12/17/2022] [Indexed: 06/17/2023]
Abstract
As a result of mining activities, waste of different types is generated. One example is mine tailings that contain potentially toxic elements such as heavy metals that negatively impact the environment and human health. Hence, developing treatments to guarantee its efficient elimination from the environment is necessary. Among these treatments, phytoremediation takes advantage of the potential of different plant species, to remove heavy metals from polluted sites. Gliricidia sepium is a tree that grows up to 15 m high and distributed from southern Mexico to Central America. This study evaluates the heavy metal bioaccumulation capacity in roots and leaves, and the effect of such bioaccumulation on fifteen macro- and one micro-morphological characters of G. sepium growing during 360 days in control, and in mine tailing substrates. G. sepium individuals growing on the exposed substrate registered the following average heavy metal bioaccumulation pattern in the roots: Fe > Pb > Zn > Cu, while in the leaf tissue, the bioaccumulation pattern was Cu > Fe > Pb > Zn. Macro- and micro-morphological characters evaluated in G. sepium decreased in plants exposed to metals. The translocation factor showed that Cu and Pb registered average values greater than 1. In conclusion, G. sepium is a species with potential for the phytoremediation of soils contaminated with Fe, Cu, and Pb, and for phytostabilizing soils polluted with Fe, Pb, Zn, and Cu, along with its ability to establish itself and turn into an abundant plant species in polluted sites, its capacity to bioaccumulate heavy metals in roots and leaves, and its high rate of HM translocation.
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Affiliation(s)
- Patricia Mussali-Galante
- Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, C.P. 62209. Cuernavaca, Morelos, Mexico
| | - Miguel Santoyo-Martínez
- Doctorado en Ciencias Naturales, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, C.P. 62209. Cuernavaca, Morelos, Mexico
| | - María Luisa Castrejón-Godínez
- Facultad de Ciencias Biológicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, C.P. 62209. Cuernavaca, Morelos, Mexico
| | - Luz Breton-Deval
- Instituto de Biotecnología, Universidad Nacional Autónoma de México, Av. Universidad S/N, Col. Chamilpa, C.P. 62210. Cuernavaca, Morelos, Mexico
| | - Alexis Rodríguez-Solis
- Centro de Investigación en Biotecnología, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, C.P. 62209. Cuernavaca, Morelos, Mexico
| | - Leticia Valencia-Cuevas
- Facultad de Ciencias Biológicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, C.P. 62209. Cuernavaca, Morelos, Mexico
| | - Efraín Tovar-Sánchez
- Centro de Investigación en Biodiversidad y Conservación, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, C.P. 62209. Cuernavaca, Morelos, Mexico.
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13
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Bai S, Han X, Feng D. Shoot-root signal circuit: Phytoremediation of heavy metal contaminated soil. FRONTIERS IN PLANT SCIENCE 2023; 14:1139744. [PMID: 36890896 PMCID: PMC9987563 DOI: 10.3389/fpls.2023.1139744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 02/08/2023] [Indexed: 06/18/2023]
Abstract
High concentrations of heavy metals in the environment will cause serious harm to ecosystems and human health. It is urgent to develop effective methods to control soil heavy metal pollution. Phytoremediation has advantages and potential for soil heavy metal pollution control. However, the current hyperaccumulators have the disadvantages of poor environmental adaptability, single enrichment species and small biomass. Based on the concept of modularity, synthetic biology makes it possible to design a wide range of organisms. In this paper, a comprehensive strategy of "microbial biosensor detection - phytoremediation - heavy metal recovery" for soil heavy metal pollution control was proposed, and the required steps were modified by using synthetic biology methods. This paper summarizes the new experimental methods that promote the discovery of synthetic biological elements and the construction of circuits, and combs the methods of producing transgenic plants to facilitate the transformation of constructed synthetic biological vectors. Finally, the problems that should be paid more attention to in the remediation of soil heavy metal pollution based on synthetic biology were discussed.
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Affiliation(s)
- Shiyan Bai
- College of Biological Science and Engineering, Fuzhou University, Fujian, China
| | - Xiao Han
- College of Biological Science and Engineering, Fuzhou University, Fujian, China
| | - Dan Feng
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
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14
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Priarone S, Romeo S, Di Piazza S, Rosatto S, Zotti M, Mariotti M, Roccotiello E. Effects of Bacterial and Fungal Inocula on Biomass, Ecophysiology, and Uptake of Metals of Alyssoides utriculata (L.) Medik. PLANTS (BASEL, SWITZERLAND) 2023; 12:554. [PMID: 36771637 PMCID: PMC9921704 DOI: 10.3390/plants12030554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/20/2023] [Accepted: 01/22/2023] [Indexed: 06/18/2023]
Abstract
The inoculation of plants with plant-growth-promoting microorganisms (PGPM) (i.e., bacterial and fungal strains) is an emerging approach that helps plants cope with abiotic and biotic stresses. However, knowledge regarding their synergic effects on plants growing in metal-rich soils is limited. Consequently, the aim of this study was to investigate the biomass, ecophysiology, and metal accumulation of the facultative Ni-hyperaccumulator Alyssoides utriculata (L.) Medik. inoculated with single or mixed plant-growth-promoting (PGP) bacterial strain Pseudomonas fluorescens Migula 1895 (SERP1) and PGP fungal strain Penicillium ochrochloron Biourge (SERP03 S) on native serpentine soil (n = 20 for each treatment). Photosynthetic efficiency (Fv/Fm) and performance indicators (PI) had the same trends with no significant differences among groups, with Fv/Fms > 1 and PI up to 12. However, the aboveground biomass increased 4-5-fold for single and mixed inoculated plants. The aboveground/belowground dry biomass ratio was higher for plants inoculated with fungi (30), mixed (21), and bacteria (17). The ICP-MS highlighted that single and mixed inocula were able to double the aboveground biomass' P content. Mn metal accumulation significantly increased with both single and mixed PGP inocula, and Zn accumulation increased only with single PGP inocula, whereas Cu accumulation increased twofold only with mixed PGP inocula, but with a low content. Only Ni metal accumulation approached the hyperaccumulation level (Ni > 1000 mg/kg DW) with all treatments. This study demonstrated the ability of selected single and combined PGP strains to significantly increase plant biomass and plant tolerance of metals present in the substrate, resulting in a higher capacity for Ni accumulation in shoots.
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Affiliation(s)
- Silvia Priarone
- Dipartimento di Scienze della Terra, dell’Ambiente e della Vita, Università degli Studi di Genova, Corso Europa 26, 16132 Genova, Italy
| | - Sara Romeo
- Dipartimento di Scienze della Terra, dell’Ambiente e della Vita, Università degli Studi di Genova, Corso Europa 26, 16132 Genova, Italy
| | - Simone Di Piazza
- Dipartimento di Scienze della Terra, dell’Ambiente e della Vita, Università degli Studi di Genova, Corso Europa 26, 16132 Genova, Italy
| | - Stefano Rosatto
- Agenzia Regionale Protezione dell’Ambiente Ligure, Via Bombrini 8, 16149 Genova, Italy
| | - Mirca Zotti
- Dipartimento di Scienze della Terra, dell’Ambiente e della Vita, Università degli Studi di Genova, Corso Europa 26, 16132 Genova, Italy
| | - Mauro Mariotti
- Dipartimento di Scienze della Terra, dell’Ambiente e della Vita, Università degli Studi di Genova, Corso Europa 26, 16132 Genova, Italy
| | - Enrica Roccotiello
- Dipartimento di Scienze della Terra, dell’Ambiente e della Vita, Università degli Studi di Genova, Corso Europa 26, 16132 Genova, Italy
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15
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Song C, Sun S, Wang J, Gao Y, Yu G, Li Y, Liu Z, Zhang W, Zhou L. Applying fulvic acid for sediment metals remediation: Mechanism, factors, and prospect. Front Microbiol 2023; 13:1084097. [PMID: 36699598 PMCID: PMC9868176 DOI: 10.3389/fmicb.2022.1084097] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 12/19/2022] [Indexed: 01/11/2023] Open
Abstract
Fulvic acid (FA) has been shown to play a decisive role in controlling the environmental geochemical behavior of metals. As a green and natural microbial metabolite, FA is widely used in environmental remediation because of its good adsorption complexation and redox ability. This paper introduces the reaction mechanism and properties of FA with metals, and reviews the progress of research on the remediation of metal pollutant by FA through physicochemical remediation and bioremediation. FA can control the biotoxicity and migration ability of some metals, such as Pb, Cr, Hg, Cd, and As, through adsorption complexation and redox reactions. The concentration, molecular weight, and source are the main factors that determine the remediation ability of FA. In addition, the ambient pH, temperature, metal ion concentrations, and competing components in sediment environments have significant effects on the extent and rate of a reaction between metals and FA during the remediation process. Finally, we summarize the challenges that this promising environmental remediation tool may face. The research directions of FA in the field of metals ecological remediation are also prospected. This review can provide new ideas and directions for the research of remediation of metals contaminants in sediments.
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Affiliation(s)
- Chuxuan Song
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, China
| | - Shiquan Sun
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, China.,Key Laboratory of Dongting Lake Aquatic Eco-Environmental Control and Restoration of Hunan Province, Changsha, China
| | - Jinting Wang
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, China
| | - Yang Gao
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, China
| | - Guanlong Yu
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, China
| | - Yifu Li
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, China
| | - Zhengqian Liu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Zhang
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, China
| | - Lean Zhou
- School of Hydraulic and Environmental Engineering, Changsha University of Science and Technology, Changsha, China
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16
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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: 3] [Impact Index Per Article: 1.5] [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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17
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Gao T, Wang H, Li C, Zuo M, Wang X, Liu Y, Yang Y, Xu D, Liu Y, Fang X. Effects of Heavy Metal Stress on Physiology, Hydraulics, and Anatomy of Three Desert Plants in the Jinchang Mining Area, China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:15873. [PMID: 36497949 PMCID: PMC9738440 DOI: 10.3390/ijerph192315873] [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: 10/12/2022] [Revised: 11/09/2022] [Accepted: 11/25/2022] [Indexed: 06/17/2023]
Abstract
The physiological mechanisms and phytoremediation effects of three kinds of native quinoa in a desert mining area were studied. We used two different types of local soils (native soil and tailing soil) to analyze the changes in the heavy metal content, leaf physiology, photosynthetic parameters, stem hydraulics, and anatomical characteristics of potted quinoa. The results show that the chlorophyll content, photosynthetic rate, stomatal conductance, and transpiration rate of Kochia scoparia were decreased, but intercellular CO2 concentration (Ci) was increased under heavy metal stress, and the net photosynthetic rate (Pn) was decreased due to non-stomatal limitation. The gas exchange of Chenopodium glaucum and Atriplex centralasiatica showed a decrease in Pn, stomatal conductance (Gs), and transpiration rate (E) due to stomatal limitation. The three species showed a similar change in heavy metal content; they all showed elevated hydraulic parameters, decreased vessel density, and significantly thickened vessel walls under heavy metal stress. Physiological indicators such as proline content and activity of superoxide dismutase (SOD) and peroxidase (POD) increased, but the content of malondialdehyde (MDA) and glutathione (GSH), as well as catalase (CAT) activity, decreased in these three plants. Therefore, it can be concluded that these three species of quinoa, possibly the most dominant 30 desert plants in the region, showed a good adaptability and accumulation capacity under the pressure of heavy metal stress, and these plants can be good candidates for tailings remediation in the Jinchang desert mining area.
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Affiliation(s)
- Tianpeng Gao
- School of Biological and Environmental Engineering, Xi’an University, Xi’an 710065, China
- School of Biological and Pharmaceutical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
- Engineering Center for Pollution Control and Ecological Restoration in Mining of Gansu Province, Lanzhou City University, Lanzhou 730070, China
| | - Haoming Wang
- School of Biological and Pharmaceutical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Changming Li
- School of Biological and Environmental Engineering, Xi’an University, Xi’an 710065, China
| | - Mingbo Zuo
- College of Life Sciences, Northwest Normal University, Lanzhou 730070, China
| | - Xueying Wang
- Institute of Environmental Health Science in Xi’an, Xi’an 710065, China
| | - Yuan Liu
- School of Biological and Pharmaceutical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China
| | - Yingli Yang
- College of Life Sciences, Northwest Normal University, Lanzhou 730070, China
| | - Danghui Xu
- State Key Laboratory of Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China
| | - Yubing Liu
- State Key Laboratory of Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China
| | - Xiangwen Fang
- State Key Laboratory of Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou 730000, China
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18
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Natural Molecular Mechanisms of Plant Hyperaccumulation and Hypertolerance towards Heavy Metals. Int J Mol Sci 2022; 23:ijms23169335. [PMID: 36012598 PMCID: PMC9409101 DOI: 10.3390/ijms23169335] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/11/2022] [Accepted: 08/17/2022] [Indexed: 11/17/2022] Open
Abstract
The main mechanism of plant tolerance is the avoidance of metal uptake, whereas the main mechanism of hyperaccumulation is the uptake and neutralization of metals through specific plant processes. These include the formation of symbioses with rhizosphere microorganisms, the secretion of substances into the soil and metal immobilization, cell wall modification, changes in the expression of genes encoding heavy metal transporters, heavy metal ion chelation, and sequestration, and regenerative heat-shock protein production. The aim of this work was to review the natural plant mechanisms that contribute towards increased heavy metal accumulation and tolerance, as well as a review of the hyperaccumulator phytoremediation capacity. Phytoremediation is a strategy for purifying heavy-metal-contaminated soils using higher plants species as hyperaccumulators.
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19
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De Paolis A, De Caroli M, Rojas M, Curci LM, Piro G, Di Sansebastiano GP. Evaluation of Dittrichia viscosa Aquaporin Nip1.1 Gene as Marker for Arsenic-Tolerant Plant Selection. PLANTS 2022; 11:plants11151968. [PMID: 35956446 PMCID: PMC9370626 DOI: 10.3390/plants11151968] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 07/26/2022] [Accepted: 07/27/2022] [Indexed: 11/16/2022]
Abstract
Dittrichia viscosa (L.) Greuter is gaining attention for its high genetic plasticity and ability to adapt to adverse environmental conditions, including heavy metal and metalloid pollution. Uptake and translocation of cadmium, copper, iron, nickel, lead, and zinc to the shoots have been characterized, but its performance with arsenic is less known and sometimes contradictory. Tolerance to As is not related to a reduced uptake, but the null mutation of the aquaporin Nip1.1 gene in Arabidopsis makes the plant completely resistant to the metalloid. This aquaporin, localized in the endoplasmic reticulum, is responsible for arsenite and antimony (Sb) membrane permeation, but the uptake of arsenite occurs also in the null mutant, suggesting a more sophisticated action mechanism than direct uptake. In this study, the DvNip1 gene homologue is cloned and its expression profile in roots and shoots is characterized in different arsenic stress conditions. The use of clonal lines allowed to evidence that DvNip1.1 expression level is influenced by arsenic stress. The proportion of gene expression in roots and shoots can be used to generate an index that appears to be a promising putative selection marker to predict arsenic-resistant lines of Dittrichia viscosa plants.
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Affiliation(s)
- Angelo De Paolis
- Institute of Sciences of Food Production (ISPA-CNR), 73100 Lecce, Italy;
| | - Monica De Caroli
- DiSTeBA (Department of Biological and Environmental Sciences and Technologies), University of Salento, 73100 Lecce, Italy; (M.D.C.); (M.R.); (L.M.C.); (G.P.)
| | - Makarena Rojas
- DiSTeBA (Department of Biological and Environmental Sciences and Technologies), University of Salento, 73100 Lecce, Italy; (M.D.C.); (M.R.); (L.M.C.); (G.P.)
| | - Lorenzo Maria Curci
- DiSTeBA (Department of Biological and Environmental Sciences and Technologies), University of Salento, 73100 Lecce, Italy; (M.D.C.); (M.R.); (L.M.C.); (G.P.)
| | - Gabriella Piro
- DiSTeBA (Department of Biological and Environmental Sciences and Technologies), University of Salento, 73100 Lecce, Italy; (M.D.C.); (M.R.); (L.M.C.); (G.P.)
| | - Gian-Pietro Di Sansebastiano
- DiSTeBA (Department of Biological and Environmental Sciences and Technologies), University of Salento, 73100 Lecce, Italy; (M.D.C.); (M.R.); (L.M.C.); (G.P.)
- Correspondence:
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20
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Use of Biostimulants as a New Approach for the Improvement of Phytoremediation Performance—A Review. PLANTS 2022; 11:plants11151946. [PMID: 35893650 PMCID: PMC9332818 DOI: 10.3390/plants11151946] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/16/2022] [Accepted: 07/20/2022] [Indexed: 11/23/2022]
Abstract
Environmental pollution is one of the most pressing global issues, and it requires priority attention. Environmental remediation techniques have been developed over the years and can be applied to polluted sites, but they can have limited effectiveness and high energy consumption and costs. Bioremediation techniques, on the other hand, represent a promising alternative. Among them, phytoremediation is attracting particular attention, a green methodology that relies on the use of plant species to remediate contaminated sites or prevent the dispersion of xenobiotics into the environment. In this review, after a brief introduction focused on pollution and phytoremediation, the use of plant biostimulants (PBs) in the improvement of the remediation effectiveness is proposed. PBs are substances widely used in agriculture to raise crop production and resistance to various types of stress. Recent studies have also documented their ability to counteract the deleterious effects of pollutants on plants, thus increasing the phytoremediation efficiency of some species. The works published to date, reviewed and discussed in the present work, reveal promising prospects in the remediation of polluted environments, especially for heavy metals, when PBs derived from humic substances, protein and amino acid hydrolysate, inorganic salts, microbes, seaweed, plant extracts, and fungi are employed.
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21
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Demidof DCH, Alvarado-Flores J, Acosta-González G, Ortega-Camacho D, Pech-Chi SY, Borbolla-Vázquez J, Díaz-Hernández JA, Cejudo E. Distribution and ecological risk of metals in an urban natural protected area in the Riviera Maya, Mexico. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 194:579. [PMID: 35819507 DOI: 10.1007/s10661-022-10244-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 06/28/2022] [Indexed: 05/16/2023]
Abstract
Urbanization can negatively impact natural protected areas near or surrounded by cities, and such impacts include untreated wastewater discharge, leachates from dumpsters, e-waste, and road dust. In this research, we show that not only large cities with industry are prone to be polluted, but also young touristic cities with high population increase rate can suffer from urban contamination. We evaluated metal pollution in a natural protected area within a 50-year-old city without conventional industry that was likely contaminated by the urban sprawl around the protected area. We tested water, zooplankton, sediment and plant samples for metallic elements to evaluate their bioaccumulation in zooplankton, enrichment factors and geoaccumulation index values in sediments, and translocation factors in plants. Finally, we evaluated the ecological risk due to metal contamination. Metals at levels above our detection limit (20 µg/L) were not found in the water and zooplankton samples. The sediments and plants in the storm drain section of the protected area had a greater concentration of metals and wastewater indicators (coliforms) than those in the rest of the lagoon. Moreover, signs of Al, Cu, Ni, Zn, Cr, Pb, and Ti contamination were found in the plant tissues. We estimated that the ecological risk of this natural protected area surrounded by the city of Cancun (Mexico) ranged from mild to strong, with Zn being the metal of most concern. The results highlight that young touristic cities around the world will endure contamination from urban sources; signs or early warnings of contamination must be identified to prevent and resolve such issues.
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Affiliation(s)
- Dino C H Demidof
- CONACYT - CICY A.C. Water Sciences Unit, Calle 8, No. 39, Mz 29, SM 64, 77524, Cancún, Quintana Roo, Mexico
| | - Jesús Alvarado-Flores
- CONACYT - CICY A.C. Water Sciences Unit, Calle 8, No. 39, Mz 29, SM 64, 77524, Cancún, Quintana Roo, Mexico
| | - Gilberto Acosta-González
- CONACYT - CICY A.C. Water Sciences Unit, Calle 8, No. 39, Mz 29, SM 64, 77524, Cancún, Quintana Roo, Mexico
| | - Daniela Ortega-Camacho
- CONACYT - CICY A.C. Water Sciences Unit, Calle 8, No. 39, Mz 29, SM 64, 77524, Cancún, Quintana Roo, Mexico
| | - Saasil Yeimy Pech-Chi
- CONACYT - CICY A.C. Water Sciences Unit, Calle 8, No. 39, Mz 29, SM 64, 77524, Cancún, Quintana Roo, Mexico
- Ingeniería Ambiental, Universidad del Caribe, Fraccionamiento Tabachines, Mz. 1, SM 78, 77528, Cancún, Quintana Roo, Mexico
| | - Jessica Borbolla-Vázquez
- Ingeniería Ambiental, Universidad del Caribe, Fraccionamiento Tabachines, Mz. 1, SM 78, 77528, Cancún, Quintana Roo, Mexico
- Ingeniería en Biotecnología, Universidad Politécnica de Quintana Roo, Av. Arco Bicentenario, Mz. 11, Lote 1119-33 SM 255, Cancún, Quintana Roo, Mexico
| | - Job Alí Díaz-Hernández
- Ingeniería Ambiental, Universidad del Caribe, Fraccionamiento Tabachines, Mz. 1, SM 78, 77528, Cancún, Quintana Roo, Mexico
- Ingeniería en Biotecnología, Universidad Politécnica de Quintana Roo, Av. Arco Bicentenario, Mz. 11, Lote 1119-33 SM 255, Cancún, Quintana Roo, Mexico
| | - Eduardo Cejudo
- CONACYT - CICY A.C. Water Sciences Unit, Calle 8, No. 39, Mz 29, SM 64, 77524, Cancún, Quintana Roo, Mexico.
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22
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Shahbazi M, Tohidfar M, Aliniaeifard S, Yazdanpanah F, Bosacchi M. Transgenic tobacco co-expressing flavodoxin and betaine aldehyde dehydrogenase confers cadmium tolerance through boosting antioxidant capacity. PROTOPLASMA 2022; 259:965-979. [PMID: 34686944 DOI: 10.1007/s00709-021-01714-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 09/29/2021] [Indexed: 06/13/2023]
Abstract
Excessive heavy metal (HM) levels in soil have become a source of concern due to their adverse effects on human health and the agriculture industry. Soil contamination by HMs leads to an accumulation of reactive oxygen species (ROSs) within the plant cell and disruption of photosynthesis-related proteins. The response of tobacco lines overexpressing flavodoxin (Fld) and betaine aldehyde dehydrogenase (BADH) to cadmium (Cd) toxicity was investigated in this study. PCR results demonstrated the expected amplicon length of each gene in the transgenic lines. Absolute qRT-PCR demonstrates a single copy of T-DNA integration into each transgenic line. Relative qRT-PCR confirmed overexpression of Fld and BADH in transgenic lines. The maximum quantum yield of photosystem II (Fv/Fm) was measured under Cd toxicity stress and revealed that transgenic lines had a higher Fv/Fm than wild-type (WT) plants. Accumulation of proline, glycine betaine (GB), and higher activity of antioxidant enzymes alongside lower levels of malondialdehyde (MDA) and hydrogen peroxide (H2O2) was indicative of a robust antioxidant system in transgenic plants. Therefore, performing a loop in reducing the ROS produced in the photosynthesis electron transport chain and stimulating the ROS scavenger enzyme activity improved the plant tolerance to Cd stress.
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Affiliation(s)
- Mehrdad Shahbazi
- Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, 1983969411, Tehran, Iran
| | - Masoud Tohidfar
- Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, 1983969411, Tehran, Iran.
| | - Sasan Aliniaeifard
- Photosynthesis Laboratory, Department of Horticulture, Aburaihan Campus, University of Tehran, 1417935840, Tehran, Iran
| | - Farzaneh Yazdanpanah
- Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, 1983969411, Tehran, Iran
| | - Massimo Bosacchi
- Park at the, Danforth Plant Science Center, KWS Gateway Research Center, LLC, BRDG, Saint Louis, MO, USA
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Inoculation with the pH Lowering Plant Growth Promoting Bacterium Bacillus sp. ZV6 Enhances Ni Phytoextraction by Salix alba from a Ni-Polluted Soil Receiving Effluents from Ni Electroplating Industry. SUSTAINABILITY 2022. [DOI: 10.3390/su14126975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Soil contamination with Ni poses serious ecological risks to the environment. Several members of the Salix genus have the ability to accumulate high concentrations of Ni in their aerial parts, and thus can be used for the remediation of Ni-contaminated soils. Interestingly, the efficacy of Ni phytoextraction by Salix may be improved by the acidification of rhizosphere with rhizosphere acidifying bacterial strains. Therefore, the aim of this study was to assess the efficacy of bacterial strain Bacillus sp. ZV6 in the presence of animal manure (AM) and leaf manure (LM) for enhancing the bioavailability of Ni in the rhizosphere of Salix alba via reducing the pH of rhizosphere and resultantly, enhanced phytoextraction of Ni. Inoculation of Ni-contaminated soil with strain ZV6 significantly increased plant growth as well as Ni uptake by alba. It was found that the addition of AM and LM resulted into a significant increase in plant growth and Ni uptake by alba in Ni-contaminated soil inoculated with ZV6 stain. However, the highest improvements in diethylene triamine penta-acetic acid (DTPA) extractable Ni (10%), Ni removal from soil (54%), Ni bioconcentration factor (26%) and Ni translocation factor (13%) were detected in the soil inoculated with ZV6 along with the addition of LM, compared to control. Similarly, the enhancements in microbial biomass (92%), bacterial count (348%), organic carbon (organic C) (57%) and various enzymatic activities such as urease (56%), dehydrogenase (32%), β-glucosidase (53%), peroxidase (26%) and acid phosphatase (38%) were also significantly higher in the soil inoculated with ZV6 along with the addition of LM. The findings of this study suggest that the inoculation of Ni-contaminated soils with rhizosphere acidifying bacteria can effectively improve Ni phytoextraction and, in parallel, enhance soil health.
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Alsafran M, Usman K, Ahmed B, Rizwan M, Saleem MH, Al Jabri H. Understanding the Phytoremediation Mechanisms of Potentially Toxic Elements: A Proteomic Overview of Recent Advances. FRONTIERS IN PLANT SCIENCE 2022; 13:881242. [PMID: 35646026 PMCID: PMC9134791 DOI: 10.3389/fpls.2022.881242] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 04/11/2022] [Indexed: 05/03/2023]
Abstract
Potentially toxic elements (PTEs) such as cadmium (Cd), lead (Pb), chromium (Cr), and arsenic (As), polluting the environment, pose a significant risk and cause a wide array of adverse changes in plant physiology. Above threshold accumulation of PTEs is alarming which makes them prone to ascend along the food chain, making their environmental prevention a critical intervention. On a global scale, current initiatives to remove the PTEs are costly and might lead to more pollution. An emerging technology that may help in the removal of PTEs is phytoremediation. Compared to traditional methods, phytoremediation is eco-friendly and less expensive. While many studies have reported several plants with high PTEs tolerance, uptake, and then storage capacity in their roots, stem, and leaves. However, the wide application of such a promising strategy still needs to be achieved, partly due to a poor understanding of the molecular mechanism at the proteome level controlling the phytoremediation process to optimize the plant's performance. The present study aims to discuss the detailed mechanism and proteomic response, which play pivotal roles in the uptake of PTEs from the environment into the plant's body, then scavenge/detoxify, and finally bioaccumulate the PTEs in different plant organs. In this review, the following aspects are highlighted as: (i) PTE's stress and phytoremediation strategies adopted by plants and (ii) PTEs induced expressional changes in the plant proteome more specifically with arsenic, cadmium, copper, chromium, mercury, and lead with models describing the metal uptake and plant proteome response. Recently, interest in the comparative proteomics study of plants exposed to PTEs toxicity results in appreciable progress in this area. This article overviews the proteomics approach to elucidate the mechanisms underlying plant's PTEs tolerance and bioaccumulation for optimized phytoremediation of polluted environments.
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Affiliation(s)
- Mohammed Alsafran
- Agricultural Research Station (ARS), Office of VP for Research and Graduate Studies, Qatar University, Doha, Qatar
- Central Laboratories Unit (CLU), Office of VP for Research and Graduate Studies, Qatar University, Doha, Qatar
| | - Kamal Usman
- Agricultural Research Station (ARS), Office of VP for Research and Graduate Studies, Qatar University, Doha, Qatar
| | - Bilal Ahmed
- School of Chemical Engineering, Yeungnam University, Gyeongsan, South Korea
| | - Muhammad Rizwan
- Office of Academic Research, Office of VP for Research and Graduate Studies, Qatar University, Doha, Qatar
| | - Muhammad Hamzah Saleem
- Office of Academic Research, Office of VP for Research and Graduate Studies, Qatar University, Doha, Qatar
| | - Hareb Al Jabri
- Center for Sustainable Development (CSD), College of Arts and Sciences, Qatar University, Doha, Qatar
- Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
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25
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Raklami A, Meddich A, Oufdou K, Baslam M. Plants-Microorganisms-Based Bioremediation for Heavy Metal Cleanup: Recent Developments, Phytoremediation Techniques, Regulation Mechanisms, and Molecular Responses. Int J Mol Sci 2022; 23:5031. [PMID: 35563429 PMCID: PMC9105715 DOI: 10.3390/ijms23095031] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/25/2022] [Accepted: 04/28/2022] [Indexed: 02/01/2023] Open
Abstract
Rapid industrialization, mine tailings runoff, and agricultural activities are often detrimental to soil health and can distribute hazardous metal(loid)s into the soil environment, with harmful effects on human and ecosystem health. Plants and their associated microbes can be deployed to clean up and prevent environmental pollution. This green technology has emerged as one of the most attractive and acceptable practices for using natural processes to break down organic contaminants or accumulate and stabilize metal pollutants by acting as filters or traps. This review explores the interactions between plants, their associated microbiomes, and the environment, and discusses how they shape the assembly of plant-associated microbial communities and modulate metal(loid)s remediation. Here, we also overview microbe-heavy-metal(loid)s interactions and discuss microbial bioremediation and plants with advanced phytoremediation properties approaches that have been successfully used, as well as their associated biological processes. We conclude by providing insights into the underlying remediation strategies' mechanisms, key challenges, and future directions for the remediation of metal(loid)s-polluted agricultural soils with environmentally friendly techniques.
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Affiliation(s)
- Anas Raklami
- Laboratory of Microbial Biotechnologies, Agrosciences, and Environment, Labeled Research Unit-CNRST N°4, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakesh 40000, Morocco; (A.R.); (K.O.)
| | - Abdelilah Meddich
- Center of Agrobiotechnology and Bioengineering, Research Unit Labelled CNRST (Centre Agro-Biotech URL-CNRST-05), “Physiology of Abiotic Stresses” Team, Cadi Ayyad University, Marrakesh 40000, Morocco;
- Laboratory of Agro-Food, Biotechnologies and Valorization of Plant Bioresources (AGROBIOVAL), Faculty of Science Semlalia, Cadi Ayyad University, Marrakesh 40000, Morocco
| | - Khalid Oufdou
- Laboratory of Microbial Biotechnologies, Agrosciences, and Environment, Labeled Research Unit-CNRST N°4, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakesh 40000, Morocco; (A.R.); (K.O.)
| | - Marouane Baslam
- Laboratory of Biochemistry, Faculty of Agriculture, Niigata University, Niigata 950-2181, Japan
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Mader AE, Holtman GA, Welz PJ. Treatment wetlands and phyto-technologies for remediation of winery effluent: Challenges and opportunities. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 807:150544. [PMID: 34619225 DOI: 10.1016/j.scitotenv.2021.150544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 09/17/2021] [Accepted: 09/19/2021] [Indexed: 06/13/2023]
Abstract
The composition and concentration of contaminants present in winery wastewater fluctuate through space and time, presenting a challenge for traditional remediation methods. Bio-hydrogeochemical engineered systems, such as treatment wetlands, have been demonstrated to effectively reduce contaminant loads prior to disposal or reuse of the effluent. This review identifies and details the status quo and challenges associated with (i) the characteristics of winery wastewater, and the (ii) functional components, (iii) operational parameters, and (iv) performance of treatment wetlands for remediation of winery effluent. Potential solutions to challenges associated with these aspects are presented, based on the latest literature. A particular emphasis has been placed on the phytoremediation of winery wastewater, and the rationale for selection of plant species for niche bioremediatory roles. This is attributed to previously reported low-to-negative removal percentages of persistent contaminants, such as salts and heavy metals that may be present in winery wastewater. A case for the inclusion of selected terrestrial halophytes in treatment wetlands and in areas irrigated using winery effluent is discussed. These are plant species that have an elevated ability to accumulate, cross-tolerate and potentially remove a range of persistent contaminants from winery effluent via various phytotechnologies (e.g., phytodesalination).
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Affiliation(s)
- Anthony E Mader
- School of Animal, Plant, and Environmental Sciences, Faculty of Science, University of the Witwatersrand, Johannesburg 2050, South Africa
| | - Gareth A Holtman
- Department of Civil Engineering, Cape Peninsula University of Technology, Symphony way, Bellville, Cape Town 7535, South Africa; Applied Microbial and Health Biotechnology Institute, Cape Peninsula University of Technology, Symphony way, Bellville, Cape Town 7535, South Africa
| | - Pamela J Welz
- Applied Microbial and Health Biotechnology Institute, Cape Peninsula University of Technology, Symphony way, Bellville, Cape Town 7535, South Africa.
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27
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Abstract
Expanding fundamental understanding of the complex and far-reaching impacts of anthropogenic climate change is essential for formulating mitigation strategies. There is abundant evidence of ongoing damage and threat to plant health across both natural and cultivated ecosystems, with potentially immeasurable cost to humanity and the health of the planet. Plant–soil systems are multi-faceted, incorporating key variables that are individually and interactively affected by climatic factors such as rainfall, solar radiation, air temperature, atmospheric CO2, and pollution. This synthesis focuses on climate effects on plant–metal interactions and related plant–soil dynamics. Ecosystems native to metalliferous soils incorporate vegetation well adapted to metal oversupply, yet climate-change is known to induce the oversupply of certain immobile soil metals by altering the chemistry of non-metalliferous soils. The latter is implicated in observed stress in some non-metal-adapted forest trees growing on ‘normal’ non-metalliferous soils. Vegetation native to riverine habitats reliant on flooding is increasingly at risk under drying conditions caused by anthropogenic water removal and climate change that ultimately limit plant access to essential trace-metal nutrients from nutrient poor sandy soils. In agricultural plant systems, it is well known that environmental conditions alter soil chemistries and plant responses to drive plant metal toxicity stress. These aspects are addressed with reference to specific scenarios and studies linking climate to plant–metal interactions, with emphasis on land plants.
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28
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Huang Q, Qiu W, Yu M, Li S, Lu Z, Zhu Y, Kan X, Zhuo R. Genome-Wide Characterization of Sedum plumbizincicola HMA Gene Family Provides Functional Implications in Cadmium Response. PLANTS 2022; 11:plants11020215. [PMID: 35050103 PMCID: PMC8779779 DOI: 10.3390/plants11020215] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 11/26/2022]
Abstract
Heavy-metal ATPase (HMA), an ancient family of transition metal pumps, plays important roles in the transmembrane transport of transition metals such as Cu, Zn, Cd, and Co. Although characterization of HMAs has been conducted in several plants, scarcely knowledge was revealed in Sedum plumbizincicola, a type of cadmium (Cd) hyperaccumulator found in Zhejiang, China. In this study, we first carried out research on genome-wide analysis of the HMA gene family in S. plumbizincicola and finally identified 8 SpHMA genes and divided them into two subfamilies according to sequence alignment and phylogenetic analysis. In addition, a structural analysis showed that SpHMAs were relatively conserved during evolution. All of the SpHMAs contained the HMA domain and the highly conserved motifs, such as DKTGT, GDGxNDxP, PxxK S/TGE, HP, and CPx/SPC. A promoter analysis showed that the majority of the SpHMA genes had cis-acting elements related to the abiotic stress response. The expression profiles showed that most SpHMAs exhibited tissue expression specificity and their expression can be regulated by different heavy metal stress. The members of Zn/Co/Cd/Pb subgroup (SpHMA1-3) were verified to be upregulated in various tissues when exposed to CdCl2. Here we also found that the expression of SpHMA7, which belonged to the Cu/Ag subgroup, had an upregulated trend in Cd stress. Overexpression of SpHMA7 in transgenic yeast indicated an improved sensitivity to Cd. These results provide insights into the evolutionary processes and potential functions of the HMA gene family in S. plumbizincicola, laying a theoretical basis for further studies on figuring out their roles in regulating plant responses to biotic/abiotic stresses.
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Affiliation(s)
- Qingyu Huang
- The Institute of Bioinformatics, College of Life Sciences, Anhui Normal University, Wuhu 241000, China;
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China; (W.Q.); (M.Y.); (S.L.); (Z.L.); (Y.Z.)
- Key Laboratory of Tree Breeding of Zhejiang Province, The Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
| | - Wenmin Qiu
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China; (W.Q.); (M.Y.); (S.L.); (Z.L.); (Y.Z.)
- Key Laboratory of Tree Breeding of Zhejiang Province, The Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
| | - Miao Yu
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China; (W.Q.); (M.Y.); (S.L.); (Z.L.); (Y.Z.)
| | - Shaocui Li
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China; (W.Q.); (M.Y.); (S.L.); (Z.L.); (Y.Z.)
| | - Zhuchou Lu
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China; (W.Q.); (M.Y.); (S.L.); (Z.L.); (Y.Z.)
| | - Yue Zhu
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China; (W.Q.); (M.Y.); (S.L.); (Z.L.); (Y.Z.)
| | - Xianzhao Kan
- The Institute of Bioinformatics, College of Life Sciences, Anhui Normal University, Wuhu 241000, China;
- Correspondence: (X.K.); (R.Z.); Tel.: +86-139-5537-2268 (X.K.); +86-0571-63311860 (R.Z.)
| | - Renying Zhuo
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China; (W.Q.); (M.Y.); (S.L.); (Z.L.); (Y.Z.)
- Key Laboratory of Tree Breeding of Zhejiang Province, The Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
- Correspondence: (X.K.); (R.Z.); Tel.: +86-139-5537-2268 (X.K.); +86-0571-63311860 (R.Z.)
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29
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Wu D, Saleem M, He T, He G. The Mechanism of Metal Homeostasis in Plants: A New View on the Synergistic Regulation Pathway of Membrane Proteins, Lipids and Metal Ions. MEMBRANES 2021; 11:membranes11120984. [PMID: 34940485 PMCID: PMC8706360 DOI: 10.3390/membranes11120984] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/04/2021] [Accepted: 12/11/2021] [Indexed: 12/15/2022]
Abstract
Heavy metal stress (HMS) is one of the most destructive abiotic stresses which seriously affects the growth and development of plants. Recent studies have shown significant progress in understanding the molecular mechanisms underlying plant tolerance to HMS. In general, three core signals are involved in plants' responses to HMS; these are mitogen-activated protein kinase (MAPK), calcium, and hormonal (abscisic acid) signals. In addition to these signal components, other regulatory factors, such as microRNAs and membrane proteins, also play an important role in regulating HMS responses in plants. Membrane proteins interact with the highly complex and heterogeneous lipids in the plant cell environment. The function of membrane proteins is affected by the interactions between lipids and lipid-membrane proteins. Our review findings also indicate the possibility of membrane protein-lipid-metal ion interactions in regulating metal homeostasis in plant cells. In this review, we investigated the role of membrane proteins with specific substrate recognition in regulating cell metal homeostasis. The understanding of the possible interaction networks and upstream and downstream pathways is developed. In addition, possible interactions between membrane proteins, metal ions, and lipids are discussed to provide new ideas for studying metal homeostasis in plant cells.
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Affiliation(s)
- Danxia Wu
- College of Agricultural, Guizhou University, Guiyang 550025, China;
| | - Muhammad Saleem
- Department of Biological Sciences, Alabama State University, Montgomery, AL 36104, USA;
| | - Tengbing He
- College of Agricultural, Guizhou University, Guiyang 550025, China;
- Institute of New Rural Development, West Campus, Guizhou University, Guiyang 550025, China
- Correspondence: (T.H.); (G.H.)
| | - Guandi He
- College of Agricultural, Guizhou University, Guiyang 550025, China;
- Correspondence: (T.H.); (G.H.)
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30
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Fasani E, DalCorso G, Zorzi G, Agrimonti C, Fragni R, Visioli G, Furini A. Overexpression of ZNT1 and NRAMP4 from the Ni Hyperaccumulator Noccaea caerulescens Population Monte Prinzera in Arabidopsis thaliana Perturbs Fe, Mn, and Ni Accumulation. Int J Mol Sci 2021; 22:ijms222111896. [PMID: 34769323 PMCID: PMC8584810 DOI: 10.3390/ijms222111896] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 10/28/2021] [Accepted: 10/31/2021] [Indexed: 12/29/2022] Open
Abstract
Metalliferous soils are characterized by a high content of metal compounds that can hamper plant growth. The pseudometallophyte Noccaea caerulescens is able to grow on metalliferous substrates by implementing both tolerance and accumulation of usually toxic metal ions. Expression of particular transmembrane transporter proteins (e.g., members of the ZIP and NRAMP families) leads to metal tolerance and accumulation, and its comparison between hyperaccumulator N. caerulescens with non-accumulator relatives Arabidopsis thaliana and Thlaspi arvense has deepened our knowledge on mechanisms adopted by plants to survive in metalliferous soils. In this work, two transporters, ZNT1 and NRAMP4, expressed in a serpentinic population of N. caerulescens identified on the Monte Prinzera (Italy) are considered, and their expression has been induced in yeast and in A. thaliana. In the latter, single transgenic lines were crossed to test the effect of the combined over-expression of the two transporters. An enhanced iron and manganese translocation towards the shoot was induced by overexpression of NcZNT1. The combined overexpression of NcZNT1 and NcNRAMP4 did perturb the metal accumulation in plants.
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Affiliation(s)
- Elisa Fasani
- Department of Biotechnology, University of Verona, Str. Le Grazie 15, 37134 Verona, Italy; (E.F.); (G.D.); (G.Z.)
| | - Giovanni DalCorso
- Department of Biotechnology, University of Verona, Str. Le Grazie 15, 37134 Verona, Italy; (E.F.); (G.D.); (G.Z.)
| | - Gianluca Zorzi
- Department of Biotechnology, University of Verona, Str. Le Grazie 15, 37134 Verona, Italy; (E.F.); (G.D.); (G.Z.)
| | - Caterina Agrimonti
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/a, 43124 Parma, Italy;
| | - Rosaria Fragni
- SSICA, Experimental Station for the Food Preserving Industry, Viale F. Tanara 31/A, 43121 Parma, Italy;
| | - Giovanna Visioli
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/a, 43124 Parma, Italy;
- Correspondence: (G.V.); (A.F.); Tel.: +39-0521905692 (G.V.); +39-0458027950 (A.F.)
| | - Antonella Furini
- Department of Biotechnology, University of Verona, Str. Le Grazie 15, 37134 Verona, Italy; (E.F.); (G.D.); (G.Z.)
- Correspondence: (G.V.); (A.F.); Tel.: +39-0521905692 (G.V.); +39-0458027950 (A.F.)
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31
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Jin MF, You MX, Lan QQ, Cai LY, Lin MZ. Effect of copper on the photosynthesis and growth of Eichhornia crassipes. PLANT BIOLOGY (STUTTGART, GERMANY) 2021; 23:777-784. [PMID: 33932072 DOI: 10.1111/plb.13281] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 04/24/2021] [Indexed: 06/12/2023]
Abstract
Although copper is essential for plant growth and development and plays an important role in many physiological processes, excess copper, resulting from industrial development and population expansion in the recent decades, leads to environmental pollution and has been a cause of wide concern for the adverse effects on photosynthesis, metabolism and growth of plants. The growth properties (e.g. fresh weight, root length, height), photosynthetic properties (e.g. gas exchange, chlorophyll a fluorescence, chlorophyll content) and the physiological index (e.g. activity of antioxidant enzymes and osmotic regulators) of Eichhornia crassipes were assessed under various Cu2+ concentrations in hydroponic experiments. The growth of E. crassipes was negatively affected by Cu2+ treatments, especially at higher Cu2+ concentrations; the Cu2+ treatments resulted in decreased photosynthesis because of a decrease in leaf chlorophyll content and damage to PSII functions, except the oxygen-evolving complex. The physiological tolerance of E. crassipes to Cu2+ relies on osmotic regulation, anti-lipid peroxidation and improved antioxidant properties. The results indicate that E. crassipes could be considered as a phytoremediation agent for Cu2+ pollution in aquatic environments. However, the benefit of E. crassipes for Cu2+ removal in a highly polluted aquatic environment will be limited, but it will be effective in remediating sites with low pollution (≤5 mg·l-1 ). The present results could provide not only a basis for understanding the effects of pollutants on photosynthesis in plants under heavy metal stress but also provide a basis for choosing plants for phytoremediation.
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Affiliation(s)
- M-F Jin
- Fujian Provincial Key Lab of Coastal Basin Environment, Fujian Polytechnic Normal University, Fuqing, Fujian Province, China
- School of Biology and Chemical Engineering, Fujian Polytechnic Normal University, Fuqing, Fujian Province, China
| | - M-X You
- School of Biology and Chemical Engineering, Fujian Polytechnic Normal University, Fuqing, Fujian Province, China
| | - Q-Q Lan
- School of Biology and Chemical Engineering, Fujian Polytechnic Normal University, Fuqing, Fujian Province, China
| | - L-Y Cai
- School of Biology and Chemical Engineering, Fujian Polytechnic Normal University, Fuqing, Fujian Province, China
| | - M-Z Lin
- Fujian Provincial Key Lab of Coastal Basin Environment, Fujian Polytechnic Normal University, Fuqing, Fujian Province, China
- School of Biology and Chemical Engineering, Fujian Polytechnic Normal University, Fuqing, Fujian Province, China
- Institute of Ocean Research, Fujian Polytechnic Normal University, Fuqing, Fujian Province, China
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32
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Lima HDP, Asencios YJO. Eichhornia crassipes (Mart.) Solms (natural or carbonized) as biosorbent to remove pollutants in water. SN APPLIED SCIENCES 2021; 3:750. [PMID: 34337324 PMCID: PMC8300990 DOI: 10.1007/s42452-021-04736-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 07/13/2021] [Indexed: 02/07/2023] Open
Abstract
The prolific aquatic herb Eichhornia crassipes considered a pest in many countries can cause damage such as obstruction of water flows and impair the locomotion of fishing boats. However, E. crassipes is renewable, inexpensive, and widely available in nature, and its ability to adsorb recalcitrant pollutants with mutagenic and carcinogenic properties, including synthetic dyes and heavy metals, has been extensively studied by the scientific community. This review paper analyzes previous reports concerning the use of E. crassipes (in the natural and carbonized form) as an adsorbent for heavy metal cations and textile dye. The adsorptive capacity of E. crassipes, the best conditions (adsorbent dosage, pH, and temperature) for the removal of these pollutants, the mechanism of adsorption, and the comparison between natural and carbonized forms (advantages and disadvantages) are discussed. All the results revised in this review indicated that the use of E. crassipes (and its carbon derived) as adsorbent is promising and is an excellent material to be applied in the water treatment. It could be used in the actual technologies for the treatment of contaminated water by heavy metals and textile dyes; however, more studies need to be made on scale-up, economy projects, and related issues, to be finally implemented in wastewater treatment plants.
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Affiliation(s)
- Herbert de P. Lima
- Institute of Marine Sciences, Federal University of São Paulo (UNIFESP), Maria Máximo St. 168, Santos, SP 11030‑100 Brazil
| | - Yvan J. O. Asencios
- Institute of Marine Sciences, Federal University of São Paulo (UNIFESP), Maria Máximo St. 168, Santos, SP 11030‑100 Brazil
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