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Zhao C, Cui X, Yu X, Ning X, Yu H, Li J, Yang B, Pan Y, Jiang L. Molecular evolution and functional diversification of metal tolerance protein families in cereals plants and function of maize MTP protein. Int J Biol Macromol 2024; 274:133071. [PMID: 38871096 DOI: 10.1016/j.ijbiomac.2024.133071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 05/24/2024] [Accepted: 06/08/2024] [Indexed: 06/15/2024]
Abstract
Plants employ metal tolerance proteins (MTPs) to confer tolerance by sequestering excess ions into vacuoles. MTPs belong to the cation diffusion facilitator (CDF) family, which facilitates the transport of divalent transition metal cations. In this study, we conducted a comprehensive analysis of the MTP gene families across 21 plant species, including maize (Zea mays). A total of 247 MTP genes were identified within these plant genomes and categorized into distinct subgroups, namely Zn-CDF, Mn-CDF, and Fe/Zn-CDF, based on phylogenetic analyses. This investigation encompassed the characterization of genomic distribution, gene structures, cis-regulatory elements, collinearity relationships, and gene ontology functions associated with MTPs. Transcriptomic analyses unveiled stress-specific expression patterns of MTP genes under various abiotic stresses. Moreover, quantitative RT-PCR assays were employed to assess maize MTP gene responses to diverse heavy metal stress conditions. Functional validation of metal tolerance roles was achieved through heterologous expression in yeast. This integrated evolutionary scrutiny of MTP families in cereals furnishes a valuable framework for the elucidation of MTP functions in subsequent studies. Notably, the prioritized MTP gene ZmMTP6 emerged as a positive regulator of plant Cd tolerance, thereby offering a pivotal genetic asset for the development of Cd-tolerant crops, particularly maize cultivars.
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Affiliation(s)
- Chao Zhao
- College of Agronomy, Jilin Agricultural Science and Technology University, Jilin 132101, Jilin Province, PR China; Beidahuang Kenfeng Seed Co., Ltd, Harbin 150000, Heilongjiang Province, PR China.
| | - Xueyu Cui
- Key Laboratory of Beibu Gulf Environment Change and Resources Utilization of Ministry of Education, Nanning Normal University, Nanning 530001, Guangxi Zhuang Autonomous Region Province, PR China
| | - Xiaoming Yu
- College of Agronomy, Jilin Agricultural Science and Technology University, Jilin 132101, Jilin Province, PR China.
| | - Xilin Ning
- College of Agronomy, Jilin Agricultural Science and Technology University, Jilin 132101, Jilin Province, PR China
| | - Haiyan Yu
- College of Agronomy, Jilin Agricultural Science and Technology University, Jilin 132101, Jilin Province, PR China
| | - Jianming Li
- College of Agronomy, Jilin Agricultural Science and Technology University, Jilin 132101, Jilin Province, PR China
| | - Baiming Yang
- College of Agronomy, Jilin Agricultural Science and Technology University, Jilin 132101, Jilin Province, PR China.
| | - Yexing Pan
- College of Agronomy, Jilin Agricultural Science and Technology University, Jilin 132101, Jilin Province, PR China.
| | - Long Jiang
- College of Agronomy, Jilin Agricultural Science and Technology University, Jilin 132101, Jilin Province, PR China.
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You L, Sheng J, Jiang G, Chen H, Yuan Y, Gong S, Yan M, Hu J, Xiang G, Duan R, Chen Y, Liu X. Molecular characterization and expression patterns of MTP genes under heavy metal stress in mustard (Brassica juncea L.). Sci Rep 2024; 14:17857. [PMID: 39090207 PMCID: PMC11294466 DOI: 10.1038/s41598-024-68877-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2024] [Accepted: 07/29/2024] [Indexed: 08/04/2024] Open
Abstract
Members of the Metal Tolerance Protein (MTP) family are critical in mediating the transport and tolerance of divalent metal cations. Despite their significance, the understanding of MTP genes in mustard (Brassica juncea) remains limited, especially regarding their response to heavy metal (HM) stress. In our study, we identified MTP gene sets in Brassica rapa (17 genes), Brassica nigra (18 genes), and B. juncea (33 genes) using the HMMER (Cation_efflux; PF01545) and BLAST analysis. For the 33 BjMTPs, a comprehensive bioinformatics analysis covering the physicochemical properties, phylogenetic relationships, conserved motifs, protein structures, collinearity, spatiotemporal RNA-seq expression, GO enrichment, and expression profiling under six HM stresses (Mn2+, Fe2+, Zn2+, Cd2+, Sb3+, and Pb2+) were carried out. According to the findings of physicochemical characteristics, phylogenetic tree, and collinearity, the allopolyploid B. juncea's MTP genes were inherited from its progenitors, B. rapa and B. nigra, with minimal gene loss during polyploidization. Members of the BjMTP family exhibited conserved motifs, promoter elements, and expression patterns across subgroups, consistent with the seven evolutionary branches (G1, G4-G9, and G12) of the MTPs. Further, spatiotemporal expression profiling under HM stresses successfully identified specific genes and crucial cis-regulatory elements associated with the response of BjMTPs to HM stresses. These findings may contribute to the genetic improvement of B. juncea for enhanced HM tolerance, facilitating the remediation of HM-contaminated areas.
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Affiliation(s)
- Liang You
- College of Agriculture and Biology, Key Laboratory of Development and Utilization and Quality and Safety Control of Characteristic Agricultural Resources in Central Hunan of College of Hunan Province, Hunan University of Humanities, Science and Technology, Loudi, 417000, Hunan, China
| | - Jialin Sheng
- College of Agriculture and Biology, Key Laboratory of Development and Utilization and Quality and Safety Control of Characteristic Agricultural Resources in Central Hunan of College of Hunan Province, Hunan University of Humanities, Science and Technology, Loudi, 417000, Hunan, China
| | - Guoxiang Jiang
- College of Agriculture and Biology, Key Laboratory of Development and Utilization and Quality and Safety Control of Characteristic Agricultural Resources in Central Hunan of College of Hunan Province, Hunan University of Humanities, Science and Technology, Loudi, 417000, Hunan, China
| | - Hao Chen
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, China
| | - Yuhui Yuan
- College of Agriculture and Biology, Key Laboratory of Development and Utilization and Quality and Safety Control of Characteristic Agricultural Resources in Central Hunan of College of Hunan Province, Hunan University of Humanities, Science and Technology, Loudi, 417000, Hunan, China
| | - Sha Gong
- College of Agriculture and Biology, Key Laboratory of Development and Utilization and Quality and Safety Control of Characteristic Agricultural Resources in Central Hunan of College of Hunan Province, Hunan University of Humanities, Science and Technology, Loudi, 417000, Hunan, China
| | - Mingli Yan
- Crop Research Institute, Hunan Academy of Agricultural Sciences, Changsha, 410125, China
| | - Junhe Hu
- College of Agriculture and Biology, Key Laboratory of Development and Utilization and Quality and Safety Control of Characteristic Agricultural Resources in Central Hunan of College of Hunan Province, Hunan University of Humanities, Science and Technology, Loudi, 417000, Hunan, China
| | - Guohong Xiang
- College of Agriculture and Biology, Key Laboratory of Development and Utilization and Quality and Safety Control of Characteristic Agricultural Resources in Central Hunan of College of Hunan Province, Hunan University of Humanities, Science and Technology, Loudi, 417000, Hunan, China
| | - Renyan Duan
- College of Agriculture and Biology, Key Laboratory of Development and Utilization and Quality and Safety Control of Characteristic Agricultural Resources in Central Hunan of College of Hunan Province, Hunan University of Humanities, Science and Technology, Loudi, 417000, Hunan, China
| | - Yong Chen
- College of Agriculture and Biology, Key Laboratory of Development and Utilization and Quality and Safety Control of Characteristic Agricultural Resources in Central Hunan of College of Hunan Province, Hunan University of Humanities, Science and Technology, Loudi, 417000, Hunan, China.
| | - Xianjun Liu
- College of Agriculture and Biology, Key Laboratory of Development and Utilization and Quality and Safety Control of Characteristic Agricultural Resources in Central Hunan of College of Hunan Province, Hunan University of Humanities, Science and Technology, Loudi, 417000, Hunan, China.
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Dai Y, Chen H, Li Y, Hui R, Zhang Z. Promising New Methods Based on the SOD Enzyme and SAUR36 Gene to Screen for Canola Materials with Heavy Metal Resistance. BIOLOGY 2024; 13:441. [PMID: 38927321 PMCID: PMC11200428 DOI: 10.3390/biology13060441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 05/30/2024] [Accepted: 06/08/2024] [Indexed: 06/28/2024]
Abstract
Canola is the largest self-produced vegetable oil source in China, although excessive levels of cadmium, lead, and arsenic seriously affect its yield. Therefore, developing methods to identify canola materials with good heavy metal tolerance is a hot topic for canola breeding. In this study, canola near-isogenic lines with different oil contents (F338 (40.62%) and F335 (46.68%) as the control) and heavy metal tolerances were used as raw materials. In an experiment with 100 times the safe standard values, the superoxide dismutase (SOD) and peroxidase (POD) activities of F335 were 32.02 mmol/mg and 71.84 mmol/mg, while the activities of F338 were 24.85 mmol/mg and 63.86 mmol/mg, exhibiting significant differences. The DEGs and DAPs in the MAPK signaling pathway of the plant hormone signal transduction pathway and other related pathways were analyzed and verified using RT-qPCR. SAUR36 and SAUR32 were identified as the key differential genes. The expression of the SAUR36 gene in canola materials planted in the experimental field was significantly higher than in the control, and FY958 exhibited the largest difference (27.82 times). In this study, SOD and SAUR36 were found to be closely related to heavy metal stress tolerance. Therefore, they may be used to screen for new canola materials with good heavy metal stress tolerance for canola breeding.
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Affiliation(s)
- Yue Dai
- College of Agriculture, Agricultural University of Hunan, 1 Agricultural Road, Changsha 410128, China; (Y.D.); (H.C.)
| | - Hao Chen
- College of Agriculture, Agricultural University of Hunan, 1 Agricultural Road, Changsha 410128, China; (Y.D.); (H.C.)
| | - Yufang Li
- Hunan Cotton Science Institute, No. 3036 Shanjuan Road, Changde 415101, China;
| | - Rongkui Hui
- Hunan Province Institute of Agricultural Science, South of Hongyuan East Road, Changsha 410125, China
| | - Zhenqian Zhang
- College of Agriculture, Agricultural University of Hunan, 1 Agricultural Road, Changsha 410128, China; (Y.D.); (H.C.)
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Sanjana S, Jazeel K, Janeeshma E, Nair SG, Shackira AM. Synergistic interactions of assorted ameliorating agents to enhance the potential of heavy metal phytoremediation. STRESS BIOLOGY 2024; 4:13. [PMID: 38363436 PMCID: PMC10873264 DOI: 10.1007/s44154-024-00153-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 01/29/2024] [Indexed: 02/17/2024]
Abstract
Pollution by toxic heavy metals creates a significant impact on the biotic community of the ecosystem. Nowadays, a solution to this problem is an eco-friendly approach like phytoremediation, in which plants are used to ameliorate heavy metals. In addition, various amendments are used to enhance the potential of heavy metal phytoremediation. Symbiotic microorganisms such as phosphate-solubilizing bacteria (PSB), endophytes, mycorrhiza and plant growth-promoting rhizobacteria (PGPR) play a significant role in the improvement of heavy metal phytoremediation potential along with promoting the growth of plants that are grown in contaminated environments. Various chemical chelators (Indole 3-acetic acid, ethylene diamine tetra acetic acid, ethylene glycol tetra acetic acid, ethylenediamine-N, N-disuccinic acid and nitrilotri-acetic acid) and their combined action with other agents also contribute to heavy metal phytoremediation enhancement. With modern techniques, transgenic plants and microorganisms are developed to open up an alternative strategy for phytoremediation. Genomics, proteomics, transcriptomics and metabolomics are widely used novel approaches to develop competent phytoremediators. This review accounts for the synergistic interactions of the ameliorating agent's role in enhancing heavy metal phytoremediation, intending to highlight the importance of these various approaches in reducing heavy metal pollution.
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Affiliation(s)
- S Sanjana
- Department of Botany, Sir Syed College, Kannur University, Kerala, 670142, India
| | - K Jazeel
- Department of Botany, Sir Syed College, Kannur University, Kerala, 670142, India
| | - E Janeeshma
- Department of Botany, MES KEVEEYAM College, Valanchery, Malappuram, Kerala, India
| | - Sarath G Nair
- Department of Botany, Mar Athanasius College, Mahatma Gandhi University, Kottayam, Kerala, India
| | - A M Shackira
- Department of Botany, Sir Syed College, Kannur University, Kerala, 670142, India.
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Shehzad J, Khan I, Zaheer S, Farooq A, Chaudhari SK, Mustafa G. Insights into heavy metal tolerance mechanisms of Brassica species: physiological, biochemical, and molecular interventions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:108448-108476. [PMID: 37924172 DOI: 10.1007/s11356-023-29979-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 09/15/2023] [Indexed: 11/06/2023]
Abstract
Heavy metal (HM) contamination of soil due to anthropogenic activities has led to bioaccumulation and biomagnification, posing toxic effects on plants by interacting with vital cellular biomolecules such as DNA and proteins. Brassica species have developed complex physiological, biochemical, and molecular mechanisms for adaptability, tolerance, and survival under these conditions. This review summarizes the HM tolerance strategies of Brassica species, covering the role of root exudates, microorganisms, cell walls, cell membranes, and organelle-specific proteins. The first line of defence against HM stress in Brassica species is the avoidance strategy, which involves metal ion precipitation, root sorption, and metal exclusion. The use of plant growth-promoting microbes, Pseudomonas, Psychrobacter, and Rhizobium species effectively immobilizes HMs and reduces their uptake by Brassica roots. The roots of Brassica species efficiently detoxify metals, particularly by flavonoid glycoside exudation. The composition of the cell wall and callose deposition also plays a crucial role in enhancing HMs resistance in Brassica species. Furthermore, plasma membrane-associated transporters, BjCET, BjPCR, BjYSL, and BnMTP, reduce HM concentration by stimulating the efflux mechanism. Brassica species also respond to stress by up-regulating existing protein pools or synthesizing novel proteins associated with HM stress tolerance. This review provides new insights into the HM tolerance mechanisms of Brassica species, which are necessary for future development of HM-resistant crops.
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Affiliation(s)
- Junaid Shehzad
- Department of Plant Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Ilham Khan
- Department of Plant Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Saira Zaheer
- Department of Plant Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Atikah Farooq
- Department of Plant Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Sunbal Khalil Chaudhari
- Institute of Molecular Biology and Biotechnology, The University of Lahore, Sargodha Campus, Sargodha, 42100, Pakistan
| | - Ghazala Mustafa
- Department of Plant Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan.
- Lishui Institute of Agriculture and Forestry Sciences, Lishui, 323000, China.
- State Agricultural Ministry Laboratory of Horticultural Crop growth and Development, Ministry of Agri-culture, Department of Horticulture, Zhejiang University, Hangzhou, 310058, China.
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Yadav R, Singh G, Santal AR, Singh NP. Omics approaches in effective selection and generation of potential plants for phytoremediation of heavy metal from contaminated resources. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 336:117730. [PMID: 36921476 DOI: 10.1016/j.jenvman.2023.117730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 02/27/2023] [Accepted: 03/10/2023] [Indexed: 06/18/2023]
Abstract
Soil and water pollution, rapid industrialization, contaminated irrigation-water, increased waste-production and surge in agricultural land leads to the accumulation of Heavy Metals (HM) with time. HM contamination has raised concern over the past years and new remediation strategies are required to deal with it. HM-contaminated soil is often used for the production of food, which makes a gateway for toxic metals into the food-chain, thereby affecting food security and human health. To avoid HM-toxicity, decontamination of important resources is essential. Therefore, exploring phytoremediation for the removal, decomposition and detoxification of hazardous metals from HM-contaminated sites is of great significance. Hyper-accumulator plants can efficiently remove HMs. However, despite many hyper-accumulator plant species, there is a research gap in the studies of phytotechnology. Hence biotechnological efforts advocating omics studies i.e. genomics, transcriptomics, proteomics, metabolomics and phenomics are in order, the purpose being to select and enhance a plant's potential for the process of phytoremediation to be more effective. There is a need to study newly developed high-efficiency hyper-accumulator plants as HM-decontaminator candidates for phytoremediation and phytomining. Therefore, this review focuses on various strategies and bio-technological methods for the removal of HM contaminants from sites, with emphasis on the advancement of phytoremediation, along with applications in cleaning up various toxic pollutants.
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Affiliation(s)
- Renu Yadav
- Department of Biotechnology, Central University of Haryana, Mahendergarh, Haryana, India
| | - Gagandeep Singh
- Department of Biotechnology, Central University of Haryana, Mahendergarh, Haryana, India
| | - Anita Rani Santal
- Department of Microbiology, Maharshi Dayanand University, Rohtak, 124001, Haryana, India.
| | - Nater Pal Singh
- Centre for Biotechnology, Maharshi Dayanand University, Rohtak, 124001, Haryana, India.
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Xie T, Zan X, Chen X, Zhu H, Rong H, Wang Y, Jiang J. An R3-MYB repressor, BnCPC forms a feedback regulation with MBW complex to modulate anthocyanin biosynthesis in Brassica napus. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2022; 15:133. [PMID: 36447291 PMCID: PMC9706894 DOI: 10.1186/s13068-022-02227-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 11/09/2022] [Indexed: 12/03/2022]
Abstract
BACKGROUND Anthocyanins are metabolites of phenylpropanoid pathway, and involves in diverse processes of plant development and adaptation, which are regulated by the MYB-bHLH-WD40 (MBW) protein complexes. Many R2R3-MYB activators have been well characterized, but the MYB repressors in anthocyanin biosynthesis were recognized recently, which are also important in modulating phenylpropanoid metabolism in plants. The regulatory mechanism of anthocyanin biosynthesis in oil crop Brassica napus remains to be revealed. RESULTS In this study, we identified an anthocyanin repressor BnCPC in B. napus. BnCPC encoded a typical R3-MYB protein containing a conserved [D/E]Lx2[R/K]x3Lx6Lx3R motif for interaction with bHLH proteins. Overexpression of BnCPC in B. napus inhibited anthocyanin accumulation, especially under anthocyanin inducible conditions. Protein-protein interaction and dual-luciferase assays confirmed that BnCPC could compete with BnPAP1 to interact with bHLHs (BnTT8 and BnEGL3), and repress the expression of anthocyanin biosynthetic genes (e.g., BnDFR) that activated by MBW complexes. Moreover, we found BnCPC inhibited the MBW complex-induced BnCPC activity. CONCLUSIONS Overall, this research demonstrated that BnCPC repressed anthocyanin biosynthesis by affecting the formation of MBW complex, and formed a feedback loop to regulate anthocyanin accumulation in B. napus.
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Affiliation(s)
- Tao Xie
- grid.268415.cJiangsu Provincial Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou, 225009 China ,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou, 225009 China
| | - Xiongyun Zan
- grid.268415.cJiangsu Provincial Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou, 225009 China
| | - Xin Chen
- grid.268415.cJiangsu Provincial Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou, 225009 China
| | - Haotian Zhu
- grid.268415.cJiangsu Provincial Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou, 225009 China
| | - Hao Rong
- grid.263761.70000 0001 0198 0694School of Biological and Food Engineering, Suzhou University, Suzhou, 234000 China
| | - Youping Wang
- grid.268415.cJiangsu Provincial Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou, 225009 China
| | - Jinjin Jiang
- grid.268415.cJiangsu Provincial Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou, 225009 China
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