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Al-Obaidi JR, Jamaludin AA, Rahman NA, Ahmad-Kamil EI. How plants respond to heavy metal contamination: a narrative review of proteomic studies and phytoremediation applications. PLANTA 2024; 259:103. [PMID: 38551683 DOI: 10.1007/s00425-024-04378-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Accepted: 03/07/2024] [Indexed: 04/02/2024]
Abstract
MAIN CONCLUSION Heavy metal pollution caused by human activities is a serious threat to the environment and human health. Plants have evolved sophisticated defence systems to deal with heavy metal stress, with proteins and enzymes serving as critical intercepting agents for heavy metal toxicity reduction. Proteomics continues to be effective in identifying markers associated with stress response and metabolic processes. This review explores the complex interactions between heavy metal pollution and plant physiology, with an emphasis on proteomic and biotechnological perspectives. Over the last century, accelerated industrialization, agriculture activities, energy production, and urbanization have established a constant need for natural resources, resulting in environmental degradation. The widespread buildup of heavy metals in ecosystems as a result of human activity is especially concerning. Although some heavy metals are required by organisms in trace amounts, high concentrations pose serious risks to the ecosystem and human health. As immobile organisms, plants are directly exposed to heavy metal contamination, prompting the development of robust defence mechanisms. Proteomics has been used to understand how plants react to heavy metal stress. The development of proteomic techniques offers promising opportunities to improve plant tolerance to toxicity from heavy metals. Additionally, there is substantial scope for phytoremediation, a sustainable method that uses plants to extract, sequester, or eliminate contaminants in the context of changes in protein expression and total protein behaviour. Changes in proteins and enzymatic activities have been highlighted to illuminate the complex effects of heavy metal pollution on plant metabolism, and how proteomic research has revealed the plant's ability to mitigate heavy metal toxicity by intercepting vital nutrients, organic substances, and/or microorganisms.
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Affiliation(s)
- Jameel R Al-Obaidi
- Department of Biology, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, 35900, Tanjong Malim, Perak, Malaysia.
- Applied Science Research Center, Applied Science Private University, Amman, Jordan.
| | - Azi Azeyanty Jamaludin
- Department of Biology, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, 35900, Tanjong Malim, Perak, Malaysia
- Center of Biodiversity and Conservation, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, 35900, Tanjong Malim, Perak, Malaysia
| | - Norafizah Abdul Rahman
- Gene Marker Laboratory, Faculty of Agriculture and Life Sciences (AGLS), Science South Building, Lincoln University, Lincoln, 7608, Canterbury, New Zealand
| | - E I Ahmad-Kamil
- Malaysian Nature Society (MNS), JKR 641, Jalan Kelantan, Bukit Persekutuan, 50480, Kuala Lumpur, Malaysia.
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2
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de Souza Junior JC, Monteiro FA. Nitrate fertilization enhances manganese phytoextraction in Tanzania guinea grass: a novel hyperaccumulator plant? ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:9661-9670. [PMID: 38194170 DOI: 10.1007/s11356-023-31548-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 12/10/2023] [Indexed: 01/10/2024]
Abstract
Manganese (Mn) is essential for plants but very toxic at high rates. However, hyperaccumulators can tolerate high Mn concentrations in plant tissue, especially when properly fertilized with N. Tanzania guinea grass (Megathyrsus maximus Jacq.) has been indicated as metal tolerant and a good candidate for Mn phytoextraction due to its fast growth and high biomass. The objective was to evaluate the Mn hyperaccumulator potential of Tanzania guinea grass grown as affected by proportions of nitrate/ammonium (NO3-/NH4+). An experiment in a growth chamber with nutrient solution, combining NO3-/NH4+ proportions (100/0 and 70/30) and Mn rates (10, 500, 1500, and 3000 μmol L-1), was carried out. The highest Mn concentration was verified in plants grown with 100/0 NO3-/NH4+ and Mn at 3000 μmol L-1, reaching up to 5500 and 21,187 mg kg-1 in shoots and roots, respectively, an overall concentration of 13,345 mg kg-1. These numbers are typically seen in hyperaccumulators. At that combination, Mn accumulation in shoots was also the highest, reaching up to 76.2 mg per pot, a phytoextraction rate of 23.1%. Excess Mn increased both H2O2 concentration in roots and non-photochemical quenching and therefore decreased net photosynthesis, stomatal conductance, electron transport rate, and photochemical quenching. Nevertheless, proline concentration in roots affected by excess Mn was high and indicates its important role for mitigating stress since Mn rates did not even affect the dry biomass. Tanzania guinea grass is highly tolerant to excess Mn as much as a hyperaccumulator. However, to show all its potential, the grass needs to be supplied with N as NO3-. We indicate Tanzania guinea grass as a Mn hyperaccumulator plant.
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Affiliation(s)
| | - Francisco Antonio Monteiro
- "Luiz de Queiroz" College of Agriculture, University of São Paulo, Piracicaba, São Paulo, 13418-900, Brazil.
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3
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Zheng ZC, Chen HH, Yang H, Shen Q, Chen XF, Huang WL, Yang LT, Guo J, Chen LS. Citrus sinensis manganese tolerance: Insight from manganese-stimulated secretion of root exudates and rhizosphere alkalization. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 206:108318. [PMID: 38159548 DOI: 10.1016/j.plaphy.2023.108318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/15/2023] [Accepted: 12/26/2023] [Indexed: 01/03/2024]
Abstract
We used manganese (Mn)-tolerant 'Xuegan' (Citrus sinensis) seedlings as materials and examined the characterization of Mn uptake and Mn-activated-release of root exudates under hydroponic conditions. We observed that root and shoot Mn bioaccumulation factor (BCF) reduced with the increase of Mn supply, and that Mn transfer factor (Tf) reduced greatly as Mn supply increased from 0 to 500 μM, beyond which Tf slightly increased with increasing Mn supply, suggesting that Mn supply reduced the ability to absorb and accumulate Mn in roots and shoots, as well as root-to-shoot Mn translocation. Without Mn, roots alkalized the solution pH from 5.0 to above 6.2, while Mn supply reduced root-induced alkalization. As Mn supply increased from 0 to 2000 μM, the secretion of root total phenolics (TPs) increased, while the solution pH decreased. Mn supply did not alter the secretion of root total free amino acids, total soluble sugars, malate, and citrate. Mn-activated-release of TPs was inhibited by low temperature and anion channel inhibitors, but not by protein biosynthesis inhibitor. Using widely targeted metabolome, we detected 48 upregulated [35 upregulated phenolic compounds + 13 other secondary metabolites (SMs)] and three downregulated SMs, and 39 upregulated and eight downregulated primary metabolites (PMs). These findings suggested that reduced ability to absorb and accumulate Mn in roots and shoots and less root-to-shoot Mn translocation in Mn-toxic seedlings, rhizosphere alkalization, and Mn-activated-release of root exudates (especially phenolic compounds) contributed to the high Mn tolerance of C. sinensis seedlings.
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Affiliation(s)
- Zhi-Chao Zheng
- College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Huan-Huan Chen
- College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Hui Yang
- College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Qian Shen
- College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Xu-Feng Chen
- College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Wei-Lin Huang
- College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Lin-Tong Yang
- College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Jiuxin Guo
- College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Li-Song Chen
- College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
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4
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Ding S, Zhang H, Zhou C, Bao Y, Xu X, Chen Y, Shen Z, Chen C. Transcriptomic, epigenomic and physiological comparisons reveal key factors for different manganese tolerances in three Chenopodium ambrosioides L. populations. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 201:107883. [PMID: 37442049 DOI: 10.1016/j.plaphy.2023.107883] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 06/27/2023] [Accepted: 07/06/2023] [Indexed: 07/15/2023]
Abstract
Chenopodium ambrosioides is a manganese (Mn) hyperaccumulator that can be used for Mn-polluted soil phytoremediation. However, the mechanism of Mn tolerance of C. ambrosioides remains largely unknown. In this study, the key factors for Mn tolerance of C. ambrosioides was investigated from the aspects of DNA methylation pattern, gene expression regulation and physiological function. We found that the two genotypes of C. ambrosioides populations have differentiated tolerance to Mn stress (Mn-tolerant: CS and XC, Mn-sensitive: WH). Although there was no difference in Mn accumulation between two types under excess Mn, the biomass and photosynthetic systems were more severely inhibited in Mn-sensitive type, as well as suffering more serious oxidative damage. More differentially expressed genes (DEGs) were downregulated in the Mn-tolerant type, indicating that the Mn-tolerant type tends to inhibit gene expression to cope with Mn stress. DEGs related to metal transport, antioxidant system, phytohormone and transcription factors contribute to the tolerance of C. ambrosioides to Mn, and account for difference in Mn stress sensitivities between the Mn-sensitive and tolerant types. We also found that DNA methylation variation may help to cope with Mn stress. The global DNA methylation level in C. ambrosioides increased under Mn stress, especially in the Mn-sensitive type. Dozens of methylated loci were significantly associated with the Mn accumulation trait of C. ambrosioides, and some critical DEGs were regulated by DNA methylation. Our study comprehensively demonstrated the Mn tolerance mechanism of C. ambrosioides for the first time, and highlighted the roles of epigenetic modification in C. ambrosioides response to Mn stress. Our findings may contribute to elucidating the adaptation mechanism of hyperaccumulator to the heavy metal toxicity.
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Affiliation(s)
- Shifeng Ding
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, PR China
| | - Hanchao Zhang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, PR China
| | - Changwei Zhou
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, PR China
| | - Yiqiong Bao
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, PR China
| | - Xiaohong Xu
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, PR China
| | - Yahua Chen
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, PR China; Jiangsu Collaborative Innovation Centre for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, Jiangsu, PR China
| | - Zhenguo Shen
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, PR China; Jiangsu Collaborative Innovation Centre for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, Jiangsu, PR China.
| | - Chen Chen
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, PR China; Jiangsu Collaborative Innovation Centre for Solid Organic Waste Resource Utilization, Nanjing Agricultural University, Nanjing, Jiangsu, PR China.
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5
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Tang T, Tao F, Li W. Characterisation of manganese toxicity tolerance in Arabis paniculata. PLANT DIVERSITY 2021; 43:163-172. [PMID: 33997549 PMCID: PMC8103337 DOI: 10.1016/j.pld.2020.07.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 07/15/2020] [Accepted: 07/16/2020] [Indexed: 05/10/2023]
Abstract
Manganese (Mn) contamination limits the production and quality of crops, and affects human health by disrupting the food chain. Arabis paniculata is a pioneer species of Brassicaceae found in mining areas, and has the ability to accumulate heavy metals. However, little is known about the genetic mechanisms of Mn tolerance in A. paniculata. In this study, we found that Mn tolerance and ability to accumulate Mn were higher in A. paniculata than in Arabidopsis thaliana. The mechanisms underlying the response and recovery of A. paniculata to Mn toxicity were further investigated using transcriptome analysis. A total of 69,862,281 base pair clean reads were assembled into 61,627 high-quality unigenes, of which 41,591 (67.5%) and 39,297 (63.8%) were aligned in the Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Ontology (GO), respectively. In response to Mn toxicity, genes were expressed in twelve distinct patterns, which can be divided into four general categories: initial, stable, dose-dependent, and lineage. Genes that were differentially expressed during Mn response and recovery belong to several dominant KEGG pathways. An early response to Mn toxicity in A. paniculata includes the upregulation of genes involved in glutathione metabolism. ATP-binding cassette (ABC) transporter proteins were up-regulated during the entire response phase, and genes involved in glycerophospholipid metabolism were up-regulated during the late phase of the Mn response. Genes in the phenylpropanoid pathway were differentially expressed in the repair process after Mn treatment. These findings reveal ideal material and genetic resources for phytoremediation in Mn-contaminated areas and highlight new knowledge and theoretical perspectives on the mechanisms of Mn tolerance.
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Affiliation(s)
- Ting Tang
- School of Life Sciences, Hunan Key Laboratory of Economic Crops Genetic Improvement and Integrated Utilization, Key Laboratory of Ecological Remediation and Safe Utilization of Heavy Metal-Polluted Soils, Hunan University of Science and Technology, Xiangtan, 411201, China
- Corresponding author. Fax: +86 731 58291416.
| | - Faqing Tao
- School of Life Sciences, Hunan Key Laboratory of Economic Crops Genetic Improvement and Integrated Utilization, Key Laboratory of Ecological Remediation and Safe Utilization of Heavy Metal-Polluted Soils, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Weiqi Li
- Plant Germplasm and Genomics Center, Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
- Corresponding author. Fax: +86 871 65223018.
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González-Villagra J, Escobar AL, Ribera-Fonseca A, Cárcamo MP, Omena-Garcia RP, Nunes-Nesi A, Inostroza-Blancheteau C, Alberdi M, Reyes-Díaz M. Differential mechanisms between traditionally established and new highbush blueberry (Vaccinium corymbosum L.) cultivars reveal new insights into manganese toxicity resistance. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 158:454-465. [PMID: 33250324 DOI: 10.1016/j.plaphy.2020.11.034] [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: 08/28/2020] [Accepted: 11/19/2020] [Indexed: 06/12/2023]
Abstract
In acid soils, manganese (Mn) concentration increases, becoming toxic to plants. Mn toxicity differentially affects physiological processes in highbush blueberry (Vaccinium corymbosum L.) cultivars. However, the mechanisms involved in Mn toxicity of the new and traditionally established cultivars are unknown. To understand Mn toxicity mechanisms, four traditionally established (Legacy, Brigitta, Duke, and Star) cultivars and two recently introduced to Chile (Camellia and Cargo) were grown under hydroponic conditions subjected to control Mn (2 μM) and Mn toxicity (1000 μM). Physiological, biochemical, and molecular parameters were evaluated at 0, 7, 14, and 21 days. We found that the relative growth rate was reduced in almost all blueberry cultivars under Mn toxicity, except Camellia, with Star being the most affected. The photosynthetic parameters were reduced only in Star by Mn treatment. Leaf Mn concentrations increased in all cultivars, exhibiting the lowest levels in Camellia and Cargo. Brigitta and Duke exhibited higher β-carotene levels, while Cargo exhibited a reduction under toxic Mn. In Legacy, lutein levels increased under Mn toxicity. Traditionally established cultivars exhibited higher antioxidant activity than the new cultivars under Mn toxicity. The Legacy and Duke cultivars increased VcMTP4 expression with Mn exposure time. A multivariate analysis separated Legacy and Duke from Camellia; Star and Cargo; and Brigitta. Our study demonstrated that Mn toxicity differentially affects physiological, biochemical, and molecular features in the new and traditionally established cultivars, with Legacy, Duke, Camellia, and Cargo as the Mn-resistant cultivars differing in their Mn-resistance mechanisms and Star as the Mn-sensitive cultivar.
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Affiliation(s)
- Jorge González-Villagra
- Departamento de Ciencias Agropecuarias y Acuícolas, Facultad de Recursos Naturales, Universidad Católica de Temuco, P.O. Box 15-D, Temuco, Chile; Núcleo de Investigación en Producción Alimentaria, Facultad de Recursos Naturales, Universidad Católica de Temuco, P.O. Box 15-D, Temuco, Chile
| | - Ana Luengo Escobar
- Center of Plant, Soil Interaction, and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, P.O. Box 54-D, Temuco, Chile
| | - Alejandra Ribera-Fonseca
- Center of Plant, Soil Interaction, and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, P.O. Box 54-D, Temuco, Chile; Centro de Fruticultura, Facultad de Ciencias Agropecuarias y Forestales, Universidad de La Frontera, Avenida Francisco Salazar 01145, P.O. Box 24-D, Temuco, Chile
| | - María Paz Cárcamo
- Doctorado en Ciencias Agropecuarias, Facultad de Recursos Naturales, Universidad Católica de Temuco, P.O. Box 15-D, Temuco, Chile
| | | | - Adriano Nunes-Nesi
- Departamento de Biologia Vegetal, Universidade Federal de Viҫosa 3657-900, Viҫosa, MG, Brazil
| | - Claudio Inostroza-Blancheteau
- Departamento de Ciencias Agropecuarias y Acuícolas, Facultad de Recursos Naturales, Universidad Católica de Temuco, P.O. Box 15-D, Temuco, Chile; Núcleo de Investigación en Producción Alimentaria, Facultad de Recursos Naturales, Universidad Católica de Temuco, P.O. Box 15-D, Temuco, Chile
| | - Miren Alberdi
- Center of Plant, Soil Interaction, and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, P.O. Box 54-D, Temuco, Chile; Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería, Ciencias y Administración, Universidad de La Frontera, P.O. Box 54-D, Temuco, Chile
| | - Marjorie Reyes-Díaz
- Center of Plant, Soil Interaction, and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, P.O. Box 54-D, Temuco, Chile; Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería, Ciencias y Administración, Universidad de La Frontera, P.O. Box 54-D, Temuco, Chile.
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7
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Ye X, Chen XF, Cai LY, Lai NW, Deng CL, Guo JX, Yang LT, Chen LS. Molecular and physiological mechanisms underlying magnesium-deficiency-induced enlargement, cracking and lignification of Citrus sinensis leaf veins. TREE PHYSIOLOGY 2020; 40:1277-1291. [PMID: 32348504 DOI: 10.1093/treephys/tpaa059] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 04/13/2020] [Accepted: 04/21/2020] [Indexed: 06/11/2023]
Abstract
Little is known about the physiological and molecular mechanisms underlying magnesium (Mg)-deficiency-induced enlargement, cracking and lignification of midribs and main lateral veins of Citrus leaves. Citrus sinensis (L.) Osbeck seedlings were irrigated with nutrient solution at a concentration of 0 (Mg-deficiency) or 2 (Mg-sufficiency) mM Mg(NO3)2 for 16 weeks. Enlargement, cracking and lignification of veins occurred only in lower leaves, but not in upper leaves. Total soluble sugars (glucose + fructose + sucrose), starch and cellulose concentrations were less in Mg-deficiency veins of lower leaves (MDVLL) than those in Mg-sufficiency veins of lower leaves (MSVLL), but lignin concentration was higher in MDVLL than that in MSVLL. However, all four parameters were similar between Mg-deficiency veins of upper leaves (MDVUL) and Mg-sufficiency veins of upper leaves (MSVUL). Using label-free, liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis, we identified 1229 and 492 differentially abundant proteins (DAPs) in MDVLL vs MSVLL and MDVUL vs MSVUL, respectively. Magnesium-deficiency-induced alterations of Mg, nonstructural carbohydrates, cell wall components, and protein profiles were greater in veins of lower leaves than those in veins of upper leaves. The increased concentration of lignin in MDVLL vs MSVLL might be caused by the following factors: (i) repression of cellulose and starch accumulation promoted lignin biosynthesis; (ii) abundances of proteins involved in phenylpropanoid biosynthesis pathway, hormone biosynthesis and glutathione metabolism were increased; and (iii) the abundances of the other DAPs [viz., copper/zinc-superoxide dismutase, ascorbate oxidase (AO) and ABC transporters] involved in lignin biosynthesis were elevated. Also, the abundances of several proteins involved in cell wall metabolism (viz., expansins, Rho GTPase-activating protein gacA, AO, monocopper oxidase-like protein and xyloglucan endotransglucosylase/hydrolase) were increased in MDVLL vs MSVLL, which might be responsible for the enlargement and cracking of leaf veins.
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Affiliation(s)
- Xin Ye
- Institute of Plant Nutritional Physiology and Molecular Biology, College of Resources and Environment, Fujian Agriculture and Forestry University (FAFU), 15 Shangxiadian Road, Cangshan District, Fuzhou 350002, China
| | - Xu-Feng Chen
- Institute of Plant Nutritional Physiology and Molecular Biology, College of Resources and Environment, Fujian Agriculture and Forestry University (FAFU), 15 Shangxiadian Road, Cangshan District, Fuzhou 350002, China
| | - Li-Ya Cai
- Institute of Plant Nutritional Physiology and Molecular Biology, College of Resources and Environment, Fujian Agriculture and Forestry University (FAFU), 15 Shangxiadian Road, Cangshan District, Fuzhou 350002, China
| | - Ning-Wei Lai
- Institute of Plant Nutritional Physiology and Molecular Biology, College of Resources and Environment, Fujian Agriculture and Forestry University (FAFU), 15 Shangxiadian Road, Cangshan District, Fuzhou 350002, China
| | - Chong-Ling Deng
- Guangxi Key Laboratory of Citrus Biology, Guangxi Academy of Specialty Crops, 40 Putuo Road, Qixing District, Guilin 541004, China
| | - Jiu-Xin Guo
- Institute of Plant Nutritional Physiology and Molecular Biology, College of Resources and Environment, Fujian Agriculture and Forestry University (FAFU), 15 Shangxiadian Road, Cangshan District, Fuzhou 350002, China
| | - Lin-Tong Yang
- Institute of Plant Nutritional Physiology and Molecular Biology, College of Resources and Environment, Fujian Agriculture and Forestry University (FAFU), 15 Shangxiadian Road, Cangshan District, Fuzhou 350002, China
| | - Li-Song Chen
- Institute of Plant Nutritional Physiology and Molecular Biology, College of Resources and Environment, Fujian Agriculture and Forestry University (FAFU), 15 Shangxiadian Road, Cangshan District, Fuzhou 350002, China
- The Higher Education Key Laboratory of Fujian Province for Soil Ecosystem Health and Regulation, College of Resources and Environment, FAFU, 15 Shangxiadian Road, Cangshan District, Fuzhou 350002, China
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Yu F, Wang X, Yao Y, Lin J, Huang Y, Xie D, Liu K, Li Y. Manganese accumulation and plant physiology behavior of Camellia oleifera in response to different levels of potassium fertilization. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2020; 22:1075-1084. [PMID: 32064892 DOI: 10.1080/15226514.2020.1726871] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The effects of potassium (K) fertilization (KCl, analytically pure; 0, 60, 200, and 400 mg kg-1) on the growth and Mn accumulation of Camellia oleifera in two types of Mn-contaminated soils were investigated. The potential mechanisms underlying the impacts of K fertilization were explored. C. oleifera accumulated high amounts of Mn in both soil conditions. The addition of K fertilizer decreased the soil pH and promoted Mn accumulation in C. oleifera. However, the plant biomass decreased significantly under the high level of K fertilization (400 mg kg-1), and the oxidative stress was stimulated under Mn contamination. But an appropriate concentration of K fertilizer (200 mg kg-1) was necessary for the formation of photosynthesis pigments, nonenzymatic antioxidants and antioxidant enzymes, metabolic processes, and nutrient uptake. Furthermore, when plants supplemented with a low level of K fertilization (200 mg kg-1), the catalase activity in C. oleifera leaves was enhanced to alleviate oxidative stress and protect the plant from Mn contamination. Our study demonstrated that 200 mg kg-1 of K fertilizer has the potential to further enhance the efficiency of Mn phytoremediation by C. oleifera.
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Affiliation(s)
- Fangming Yu
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin, China
- Key Laboratory of Karst Ecology and Environment Change of Guangxi Department of Education, Guangxi Normal University, Guilin, China
- College of Environment and Resource, Guangxi Normal University, Guilin, China
| | - Xueru Wang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin, China
| | - Yawei Yao
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin, China
| | - Jiamin Lin
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin, China
| | - Yuanyuan Huang
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin, China
| | - Dongyu Xie
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin, China
| | - Kehui Liu
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin, China
- College of Life Science, Guangxi Normal University, Guilin, China
| | - Yi Li
- Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin, China
- Key Laboratory of Karst Ecology and Environment Change of Guangxi Department of Education, Guangxi Normal University, Guilin, China
- College of Environment and Resource, Guangxi Normal University, Guilin, China
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9
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Li Y, Yang M, Liu L, Zhang R, Cui Y, Dang P, Ge X, Chen X. Effects of 1-butyl-3-methylimidazolium chloride on the photosynthetic system and metabolism of maize (Zea mays L.) seedlings. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 161:648-654. [PMID: 29933134 DOI: 10.1016/j.ecoenv.2018.06.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 06/03/2018] [Accepted: 06/13/2018] [Indexed: 06/08/2023]
Abstract
Ionic liquids (ILs) are widely used in various chemical processes. However, a growing number of studies have found that ILs are potentially toxic to different types of living organisms, including crops. The present study analysed the effects of 1-butyl-3-methylimidazolium chloride ([C4mim]Cl) on the photosynthetic system and metabolism of maize seedlings. Results showed that [C4mim]Cl could significantly reduce maize leaf chlorophyll level and cause extensive leaf bleaching. The activity of photosystem II (PSII) was significantly inhibited when seedlings exposed to higher concentration of [C4mim]Cl. The maximum quantum yield of PSII and the potential efficiency of PSII were reduced by 63% and 88% under 800 mg/L [C4mim]Cl treatment in comparison with the control treatment. The RNA sequencing analysis performed to examine gene expression profiles of maize leaves under [C4mim]Cl treatment revealed 639 differentially expressed genes (DEGs), 115 of which were categorized into different metabolic pathways. Among these DEGs, the seven genes involved in the photosynthetic Calvin cycle were down-regulated by [C4mim]Cl exposure. For carbohydrates and amino acids metabolism, the genes for starch synthesis were down-regulated, while the genes for amino acids and protein degradation were up-regulated. The changes observed in these major metabolic pathways might be an important reason for [C4mim]Cl toxicity.
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Affiliation(s)
- Yajun Li
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Miao Yang
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Le Liu
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Ruoyu Zhang
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yuhui Cui
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Pengfei Dang
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xuemei Ge
- Nanjing Forestry University, Nanjing 210037, China
| | - Xiaohong Chen
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, China.
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