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Zhang W, Yang S, Feng Y, Liang B, Li C, Li Q, Zeng Z, Ji X, Liu J, Wang Y. The tonoplast-localized OsTIP2;1 is involved in aluminum detoxification in rice. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:109063. [PMID: 39208475 DOI: 10.1016/j.plaphy.2024.109063] [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: 07/13/2024] [Revised: 08/12/2024] [Accepted: 08/20/2024] [Indexed: 09/04/2024]
Abstract
Aluminum (Al) stress is a significant issue in acidic soils, severely affecting crop growth and yield. Rice is notably resilient to Al toxicity, yet the internal tolerance mechanisms remain inadequately addressed. Here, we examined the role of OsTIP2;1, a tonoplast-bound intrinsic protein (TIP), in rice's internal Al detoxification. Our findings reveal that OsTIP2;1 expression was quickly and explicitly activated by Al ions in roots but not in shoots. The OsTIP2;1-GFP protein localizes to the tonoplast in plant and yeast cells. Non-functional ostip2;1 rice mutants were more vulnerable to Al toxicity. In the roots, the ostip2;1 mutants exhibited considerably lower levels of Al in the cell sap, primarily the vacuolar contents, than in the wild-type plant. Moreover, the ostip2;1 mutants showed reduced Al accumulation in the roots but increased translocation to the shoots. Heterologous expression of tonoplast-localized OsTIP2;1 in yeast led to enhanced Al tolerance, suggesting that OsTIP2;1 facilitates Al sequestration to the vacuole. These findings indicate that OsTIP2;1 mediates internal detoxification by transporting Al into the vacuole in the root and restricting its transport to above-ground tissues, thus contributing to Al resistance in rice.
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Affiliation(s)
- Weiyin Zhang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, Guangdong, China; School of Life Sciences, Guangzhou University, Guangzhou, Guangdong, China
| | - Shaohua Yang
- Institute of Biotechnology, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian, China
| | - Yimeng Feng
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, Guangdong, China
| | - Bixia Liang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, Guangdong, China
| | - Chune Li
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, Guangdong, China
| | - Qian Li
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, Guangdong, China
| | - Zhenshun Zeng
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, Guangdong, China
| | - Xiyue Ji
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, Guangdong, China
| | - Jiping Liu
- Robert W. Holley Center, US Department of Agriculture, Agricultural Research Service, Cornell University, Ithaca, NY, USA; Plant Breeding and Genetics Section, School of Integrative Plant Sciences, Cornell University, Ithaca, NY, USA.
| | - Yuqi Wang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, Guangdong, China; Robert W. Holley Center, US Department of Agriculture, Agricultural Research Service, Cornell University, Ithaca, NY, USA.
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2
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Yan Q, Lu L, Yi X, Pereira JF, Zhang J. Comparative transcriptome analyses reveal regulatory network and hub genes of aluminum response in roots of elephant grass (Cenchrus purpureus). JOURNAL OF HAZARDOUS MATERIALS 2024; 476:135011. [PMID: 38944995 DOI: 10.1016/j.jhazmat.2024.135011] [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: 02/06/2024] [Revised: 05/21/2024] [Accepted: 06/21/2024] [Indexed: 07/02/2024]
Abstract
Aluminum (Al) toxicity severely restricts the growth and productivity of elephant grass in acidic soils around the world. However, the molecular mechanisms of Al response have not been investigated in elephant grass. In this study, we conducted phenotype, physiology, and transcriptome analysis of elephant grass roots in response to Al stress. Phenotypic analysis revealed that a low concentration of Al stress improved root growth while higher Al concentrations inhibit root growth. Al stress significantly increased the citrate (CA) content in roots, while the expression levels of genes related to citrate synthesis were substantially changed. The multidrug and toxic compound extrusion (MATE) family were identified as hub genes in the co-expression network of Al response in elephant grass roots. Phylogenetic analysis showed that hub genes CpMATE93 and CpMATE158 belonged to the same clade as other MATE genes reported to be involved in citrate transport. Additionally, overexpression of CpMATE93 conferred Al resistance in yeast cells. These results provide a theoretical basis for further studies of molecular mechanisms in the elephant grass response to Al stress and could help breeders develop elite cultivars with Al tolerance.
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Affiliation(s)
- Qi Yan
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China
| | - Liyan Lu
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China
| | - Xianfeng Yi
- Animal Husbandry Research Institute of Guangxi Zhuang Autonomous Region, Guangxi Vocational University of Agriculture, Nanning 530001, China
| | | | - Jiyu Zhang
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China.
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3
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Nie G, Huang Y, Wang Y, He J, Zhang R, Yan L, Huang L, Zhang X. Physiological and comprehensive transcriptome analysis reveals distinct regulatory mechanisms for aluminum tolerance of Trifolium repens. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 284:117001. [PMID: 39236654 DOI: 10.1016/j.ecoenv.2024.117001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 08/29/2024] [Accepted: 09/01/2024] [Indexed: 09/07/2024]
Abstract
It is estimated that up to 50 % of arable lands worldwide are acidic, and most crops are severely inhibited due to the high active aluminum (Al). Trifolium repens is an excellent legume forage with a certain acid tolerance, although it is affected by Al toxicity in acidic soil. In this study, physiological and transcriptomic responses of different white clover varieties were analyzed when exposed to a high-level of Al stress. The results revealed that Trifolium repens had a high level of Al toxicity tolerance, and accumulated nearly 70 % of Al3+ in its roots. Al toxicity significantly inhibited the root length and root activity, decreased the chlorophyll (Chl) content and photosynthetic pigments, while significantly increased the intercellular CO2 concentration (Ci). The content of malondialdehyde (MDA), electrolyte leakage (EL), proline and reactive oxygen species (ROS) were significantly accumulated under Al stress. Furthermore, a total of 27,480 differentially expressed genes (DEGs) were identified after the treatment. Gene ontology (GO) and Kyoto encyclopedia of Genes and Genomes (KEGG) pathway analysis showed that most Al-responsive genes enriched to chloroplast thylakoid membrane, chloroplast stroma and photosynthesis in Haifa leaf while in MAG leaf highly enriched in response to regulation of defense response, which could induce the different tolerance of the two cultivars to Al stress. Besides, pectin methylesterase (PME), glycosyl transferases (GT1) and chalcone synthase genes associated with cell wall biosynthesis may improve the Al accumulation and enhance tolerance of Al toxicity. The results established here would help to understand the morphological structure, physiological and biochemical response, and molecular mechanism of white clover under Al tolerance.
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Affiliation(s)
- Gang Nie
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, China.
| | - Yizhi Huang
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Yang Wang
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Jie He
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Rui Zhang
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Lijun Yan
- Sichuan Academy of Grassland Science, Chengdu 611731, China
| | - Linkai Huang
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Xinquan Zhang
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
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4
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Li S, Yang JB, Li JQ, Huang J, Shen RF, Zeng DL, Zhu XF. A NAC transcription factor represses a module associated with xyloglucan content and regulates aluminum tolerance. PLANT PHYSIOLOGY 2024; 196:564-578. [PMID: 38753299 DOI: 10.1093/plphys/kiae281] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 04/11/2024] [Indexed: 09/03/2024]
Abstract
The transcriptional regulation of aluminum (Al) tolerance in plants is largely unknown, although Al toxicity restricts agricultural yields in acidic soils. Here, we identified a NAM, ATAF1/2, and cup-shaped cotyledon 2 (NAC) transcription factor that participates in Al tolerance in Arabidopsis (Arabidopsis thaliana). Al substantially induced the transcript and protein levels of ANAC070, and loss-of-function mutants showed remarkably increased Al sensitivity, implying a beneficial role of ANAC070 in plant tolerance to Al toxicity. Further investigation revealed that more Al accumulated in the roots of anac070 mutants, especially in root cell walls, accompanied by a higher hemicellulose and xyloglucan level, implying a possible interaction between ANAC070 and genes that encode proteins responsible for the modification of xyloglucan, including xyloglucan endo-transglycosylase/hydrolase (XTH) or ANAC017. Yeast 1-hybrid analysis revealed a potential interaction between ANAC070 and ANAC017, but not for other XTHs. Furthermore, dual-luciferase reporter assay, RT-qPCR, and GUS analysis revealed that ANAC070 could directly repress the transcript levels of ANAC017, and knockout of ANAC017 in the anac070 mutant partially restored its Al sensitivity phenotype, indicating that ANAC070 contributes to Al tolerance mechanisms other than suppression of ANAC017 expression. Further analysis revealed that the core transcription factor SENSITIVE TO PROTON RHIZOTOXICITY 1 (STOP1) and its target genes, which control Al tolerance in Arabidopsis, may also be involved in ANAC070-regulated Al tolerance. In summary, we identified a transcription factor, ANAC070, that represses the ANAC017-XTH31 module to regulate Al tolerance in Arabidopsis.
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Affiliation(s)
- Su Li
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- Institute of Soil Science, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ji Bo Yang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou 311300, China
| | - Jia Qi Li
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- Institute of Soil Science, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jing Huang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- Institute of Soil Science, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ren Fang Shen
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- Institute of Soil Science, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Da Li Zeng
- College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou 311300, China
| | - Xiao Fang Zhu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
- Institute of Soil Science, University of Chinese Academy of Sciences, Beijing 100049, China
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5
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Seregin IV, Kozhevnikova AD. The Role of Low-Molecular-Weight Organic Acids in Metal Homeostasis in Plants. Int J Mol Sci 2024; 25:9542. [PMID: 39273488 PMCID: PMC11394999 DOI: 10.3390/ijms25179542] [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: 06/18/2024] [Revised: 08/02/2024] [Accepted: 08/21/2024] [Indexed: 09/15/2024] Open
Abstract
Low-molecular-weight organic acids (LMWOAs) are essential O-containing metal-binding ligands involved in maintaining metal homeostasis, various metabolic processes, and plant responses to biotic and abiotic stress. Malate, citrate, and oxalate play a crucial role in metal detoxification and transport throughout the plant. This review provides a comparative analysis of the accumulation of LMWOAs in excluders, which store metals mainly in roots, and hyperaccumulators, which accumulate metals mainly in shoots. Modern concepts of the mechanisms of LMWOA secretion by the roots of excluders and hyperaccumulators are summarized, and the formation of various metal complexes with LMWOAs in the vacuole and conducting tissues, playing an important role in the mechanisms of metal detoxification and transport, is discussed. Molecular mechanisms of transport of LMWOAs and their complexes with metals across cell membranes are reviewed. It is discussed whether different endogenous levels of LMWOAs in plants determine their metal tolerance. While playing an important role in maintaining metal homeostasis, LMWOAs apparently make a minor contribution to the mechanisms of metal hyperaccumulation, which is associated mainly with root exudates increasing metal bioavailability and enhanced xylem loading of LMWOAs. The studies of metal-binding compounds may also contribute to the development of approaches used in biofortification, phytoremediation, and phytomining.
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Affiliation(s)
- Ilya V Seregin
- K.A. Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya st., 35, Moscow 127276, Russia
| | - Anna D Kozhevnikova
- K.A. Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya st., 35, Moscow 127276, Russia
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6
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Zeng H, Chen H, Zhang M, Ding M, Xu F, Yan F, Kinoshita T, Zhu Y. Plasma membrane H +-ATPases in mineral nutrition and crop improvement. TRENDS IN PLANT SCIENCE 2024; 29:978-994. [PMID: 38582687 DOI: 10.1016/j.tplants.2024.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 02/19/2024] [Accepted: 02/22/2024] [Indexed: 04/08/2024]
Abstract
Plasma membrane H+-ATPases (PMAs) pump H+ out of the cytoplasm by consuming ATP to generate a membrane potential and proton motive force for the transmembrane transport of nutrients into and out of plant cells. PMAs are involved in nutrient acquisition by regulating root growth, nutrient uptake, and translocation, as well as the establishment of symbiosis with arbuscular mycorrhizas. Under nutrient stresses, PMAs are activated to pump more H+ and promote organic anion excretion, thus improving nutrient availability in the rhizosphere. Herein we review recent progress in the physiological functions and the underlying molecular mechanisms of PMAs in the efficient acquisition and utilization of various nutrients in plants. We also discuss perspectives for the application of PMAs in improving crop production and quality.
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Affiliation(s)
- Houqing Zeng
- College of Life and Environmental Sciences, Kharkiv Institute at Hangzhou Normal University, Hangzhou Normal University, Hangzhou 311121, China.
| | - Huiying Chen
- College of Life and Environmental Sciences, Kharkiv Institute at Hangzhou Normal University, Hangzhou Normal University, Hangzhou 311121, China
| | - Maoxing Zhang
- International Research Centre for Environmental Membrane Biology, Department of Horticulture, Foshan University, Foshan 528000, China
| | - Ming Ding
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, 225009, China
| | - Feiyun Xu
- Center for Plant Water-Use and Nutrition Regulation, College of JunCao Science and Ecology (College of Carbon Neutrality), Fujian Agriculture and Forestry University, Fuzhou, China
| | - Feng Yan
- Institute of Agronomy and Plant Breeding, Justus Liebig University of Giessen, Giessen, Germany
| | - Toshinori Kinoshita
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Nagoya 4660824, Japan.
| | - Yiyong Zhu
- College of Resource and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China.
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7
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Fang C, Wu J, Liang W. Systematic Investigation of Aluminum Stress-Related Genes and Their Critical Roles in Plants. Int J Mol Sci 2024; 25:9045. [PMID: 39201731 PMCID: PMC11354972 DOI: 10.3390/ijms25169045] [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: 07/28/2024] [Revised: 08/14/2024] [Accepted: 08/15/2024] [Indexed: 09/03/2024] Open
Abstract
Aluminum (Al) stress is a dominant obstacle for plant growth in acidic soil, which accounts for approximately 40-50% of the world's potential arable land. The identification and characterization of Al stress response (Al-SR) genes in Arabidopsis, rice, and other plants have deepened our understanding of Al's molecular mechanisms. However, as a crop sensitive to acidic soil, only eight Al-SR genes have been identified and functionally characterized in maize. In this review, we summarize the Al-SR genes in plants, including their classifications, subcellular localizations, expression organs, functions, and primarily molecular regulatory networks. Moreover, we predict 166 putative Al-SR genes in maize based on orthologue analyses, facilitating a comprehensive understanding of the impact of Al stress on maize growth and development. Finally, we highlight the potential applications of alleviating Al toxicity in crop production. This review deepens our understanding of the Al response in plants and provides a blueprint for alleviating Al toxicity in crop production.
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Affiliation(s)
- Chaowei Fang
- College of Life Science, Henan Normal University, Xinxiang 453007, China;
| | - Jiajing Wu
- Xinxiang Academy of Agricultural Sciences, Xinxiang 453000, China;
| | - Weihong Liang
- College of Life Science, Henan Normal University, Xinxiang 453007, China;
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8
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Singh D, Tripathi A, Mitra R, Bhati J, Rani V, Taunk J, Singh D, Yadav RK, Siddiqui MH, Pal M. Genome-wide identification of MATE and ALMT genes and their expression profiling in mungbean (Vigna radiata L.) under aluminium stress. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 280:116558. [PMID: 38850702 DOI: 10.1016/j.ecoenv.2024.116558] [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: 03/21/2024] [Revised: 06/03/2024] [Accepted: 06/04/2024] [Indexed: 06/10/2024]
Abstract
The Multidrug and toxic compound extrusion (MATE) and aluminium activated malate transporter (ALMT) gene families are involved in response to aluminium (Al) stress. In this study, we identified 48 MATE and 14 ALMT gene families in Vigna radiata genome and classified into 5 (MATE) and 3 (ALMT) clades by phylogenetic analysis. All the VrMATE and VrALMT genes were distributed across mungbean chromosomes. Tandem duplication was the main driving force for evolution and expansion of MATE gene family. Collinearity of mungbean with soybean indicated that MATE gene family is closely linked to Glycine max. Eight MATE transporters in clade 2 were found to be associated with previously characterized Al tolerance related MATEs in various plant species. Citrate exuding motif (CEM) was present in seven VrMATEs of clade 2. Promoter analysis revealed abundant plant hormone and stress responsive cis-elements. Results from quantitative real time-polymerase chain reaction (qRT-PCR) revealed that VrMATE19, VrMATE30 and VrALMT13 genes were markedly up-regulated at different time points under Al stress. Overall, this study offers a new direction for further molecular characterization of the MATE and ALMT genes in mungbean for Al tolerance.
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Affiliation(s)
- Dharmendra Singh
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India.
| | - Ankita Tripathi
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India
| | - Raktim Mitra
- Division of Plant Physiology, ICAR, Indian Agricultural Research Institute, New Delhi 110012, India
| | - Jyotika Bhati
- ICAR-Indian Agricultural Statistics Research Institute, New Delhi 110012, India
| | - Varsha Rani
- Department of Agriculture, Meerut Institute of Technology, Meerut 250103, India
| | - Jyoti Taunk
- Division of Plant Physiology, ICAR, Indian Agricultural Research Institute, New Delhi 110012, India
| | - Deepti Singh
- Department of Botany, Meerut College, Meerut 250103, India
| | - Rajendra Kumar Yadav
- Department of Genetics and Plant Breeding, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur 208002, India
| | - Manzer H Siddiqui
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Madan Pal
- Division of Plant Physiology, ICAR, Indian Agricultural Research Institute, New Delhi 110012, India
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9
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Wei Y, Han R, Yu Y. GmMYB183, a R2R3-MYB Transcription Factor in Tamba Black Soybean ( Glycine max. cv. Tamba), Conferred Aluminum Tolerance in Arabidopsis and Soybean. Biomolecules 2024; 14:724. [PMID: 38927127 PMCID: PMC11202213 DOI: 10.3390/biom14060724] [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: 05/09/2024] [Revised: 06/10/2024] [Accepted: 06/12/2024] [Indexed: 06/28/2024] Open
Abstract
Aluminum (Al) toxicity is one of the environmental stress factors that affects crop growth, development, and productivity. MYB transcription factors play crucial roles in responding to biotic or abiotic stresses. However, the roles of MYB transcription factors in Al tolerance have not been clearly elucidated. Here, we found that GmMYB183, a gene encoding a R2R3 MYB transcription factor, is involved in Al tolerance. Subcellular localization studies revealed that GmMYB183 protein is located in the nucleus, cytoplasm and cell membrane. Overexpression of GmMYB183 in Arabidopsis and soybean hairy roots enhanced plant tolerance towards Al stress compared to the wild type, with higher citrate secretion and less Al accumulation. Furthermore, we showed that GmMYB183 binds the GmMATE75 gene promoter encoding for a plasma-membrane-localized citrate transporter. Through a dual-luciferase reporter system and yeast one hybrid, the GmMYB183 protein was shown to directly activate the transcription of GmMATE75. Furthermore, the expression of GmMATE75 may depend on phosphorylation of Ser36 residues in GmMYB183 and two MYB sites in P3 segment of the GmMATE75 promoter. In conclusion, GmMYB183 conferred Al tolerance by promoting the secretion of citrate, which provides a scientific basis for further elucidating the mechanism of plant Al resistance.
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Affiliation(s)
- Yunmin Wei
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China;
- College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China;
| | - Rongrong Han
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China;
- Chongqing College of Traditional Chinese Medicine, Chongqing 402760, China
| | - Yongxiong Yu
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China;
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10
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Gao P, Han R, Xu H, Wei Y, Yu Y. Identification of MATE Family and Characterization of GmMATE13 and GmMATE75 in Soybean's Response to Aluminum Stress. Int J Mol Sci 2024; 25:3711. [PMID: 38612522 PMCID: PMC11011378 DOI: 10.3390/ijms25073711] [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: 02/29/2024] [Revised: 03/22/2024] [Accepted: 03/23/2024] [Indexed: 04/14/2024] Open
Abstract
The multidrug and toxic compound extrusion (MATE) proteins are coding by a secondary transporter gene family, and have been identified to participate in the modulation of organic acid exudation for aluminum (Al) resistance. The soybean variety Glycine max "Tamba" (TBS) exhibits high Al tolerance. The expression patterns of MATE genes in response to Al stress in TBS and their specific functions in the context of Al stress remain elusive. In this study, 124 MATE genes were identified from the soybean genome. The RNA-Seq results revealed significant upregulation of GmMATE13 and GmMATE75 in TBS upon exposure to high-dose Al3+ treatment and both genes demonstrated sequence homology to citrate transporters of other plants. Subcellular localization showed that both proteins were located in the cell membrane. Transgenic complementation experiments of Arabidopsis mutants, atmate, with GmMATE13 or GmMATE75 genes enhanced the Al tolerance of the plant due to citrate secretion. Taken together, this study identified GmMATE13 and GmMATE75 as citrate transporter genes in TBS, which could improve citrate secretion and enhance Al tolerance. Our findings provide genetic resources for the development of plant varieties that are resistant to Al toxicity.
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Affiliation(s)
- Pengxiang Gao
- Center for Plant Environmental Sensing, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China;
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Rongrong Han
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China; (R.H.); (H.X.); (Y.Y.)
| | - Hui Xu
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China; (R.H.); (H.X.); (Y.Y.)
| | - Yunmin Wei
- Center for Plant Environmental Sensing, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China;
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China; (R.H.); (H.X.); (Y.Y.)
| | - Yongxiong Yu
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China; (R.H.); (H.X.); (Y.Y.)
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11
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Ur Rahman S, Han JC, Ahmad M, Ashraf MN, Khaliq MA, Yousaf M, Wang Y, Yasin G, Nawaz MF, Khan KA, Du Z. Aluminum phytotoxicity in acidic environments: A comprehensive review of plant tolerance and adaptation strategies. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 269:115791. [PMID: 38070417 DOI: 10.1016/j.ecoenv.2023.115791] [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: 09/20/2023] [Revised: 11/28/2023] [Accepted: 12/04/2023] [Indexed: 01/12/2024]
Abstract
Aluminum (Al), a non-essential metal for plant growth, exerts significant phytotoxic effects, particularly on root growth. Anthropogenic activities would intensify Al's toxic effects by releasing Al3+ into the soil solution, especially in acidic soils with a pH lower than 5.5 and rich mineral content. The severity of Al-induced phytotoxicity varies based on factors such as Al concentration, ionic form, plant species, and growth stages. Al toxicity leads to inhibited root and shoot growth, reduced plant biomass, disrupted water uptake causing nutritional imbalance, and adverse alterations in physiological, biochemical, and molecular processes. These effects collectively lead to diminished plant yield and quality, along with reduced soil fertility. Plants employ various mechanisms to counter Al toxicity under stress conditions, including sequestering Al in vacuoles, exuding organic acids (OAs) like citrate, oxalate, and malate from root tip cells to form Al-complexes, activating antioxidative enzymes, and overexpressing Al-stress regulatory genes. Recent advancements focus on enhancing the exudation of OAs to prevent Al from entering the plant, and developing Al-tolerant varieties. Gene transporter families, such as ATP-Binding Cassette (ABC), Aluminum-activated Malate Transporter (ALMT), Natural resistance-associated macrophage protein (Nramp), Multidrug and Toxic compounds Extrusion (MATE), and aquaporin, play a crucial role in regulating Al toxicity. This comprehensive review examined recent progress in understanding the cytotoxic impact of Al on plants at the cellular and molecular levels. Diverse strategies developed by both plants and scientists to mitigate Al-induced phytotoxicity were discussed. Furthermore, the review explored recent genomic developments, identifying candidate genes responsible for OAs exudation, and delved into genome-mediated breeding initiatives, isolating transgenic and advanced breeding lines to cultivate Al-tolerant plants.
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Affiliation(s)
- Shafeeq Ur Rahman
- Water Science and Environmental Engineering Research Center, College of Chemical and Environmental Engineering, Shenzhen University, Shenzhen 518060, China; Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Jing-Cheng Han
- Water Science and Environmental Engineering Research Center, College of Chemical and Environmental Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Muhammad Ahmad
- Water Science and Environmental Engineering Research Center, College of Chemical and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Muhammad Nadeem Ashraf
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad 38040, Pakistan
| | | | - Maryam Yousaf
- Water Science and Environmental Engineering Research Center, College of Chemical and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Yuchen Wang
- Water Science and Environmental Engineering Research Center, College of Chemical and Environmental Engineering, Shenzhen University, Shenzhen 518060, China; Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Ghulam Yasin
- Department of Forestry and Range Management, FAS & T, Bahauddin Zakariya University Multan, Multan 60000, Pakistan
| | | | - Khalid Ali Khan
- Unit of Bee Research and Honey Production, Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia; Applied College, King Khalid University, Abha 61413, Saudi Arabia
| | - Zhenjie Du
- Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences, Xinxiang 453002, China; Water Environment Factor Risk Assessment Laboratory of Agricultural Products Quality and Safety, Ministry of Agriculture and Rural Affairs, Xinxiang 453002, China.
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12
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Pinto VB, Vidigal PMP, Dal-Bianco M, Almeida-Silva F, Venancio TM, Viana JMS. Transcriptome-based strategies for identifying aluminum tolerance genes in popcorn (Zea mays L. var. everta). Sci Rep 2023; 13:19400. [PMID: 37938583 PMCID: PMC10632369 DOI: 10.1038/s41598-023-46810-9] [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: 08/08/2023] [Accepted: 11/06/2023] [Indexed: 11/09/2023] Open
Abstract
Aluminum (Al) toxicity limits crop production worldwide. Although studies have identified genes associated with Al tolerance in crops, a large amount of data remains unexplored using other strategies. Here, we searched for single substitutions and InDels across differentially expressed genes (DEGs), linked DEGs to Al-tolerance QTLs reported in the literature for common maize, and investigated the alternative splicing regulated by Al3+ toxicity. We found 929 substitutions between DEGs in Al-tolerant and 464 in Al-sensitive inbred lines, of which 165 and 80 were non-synonymous, respectively. Only 12 NS variants had deleterious predicted effect on protein function in Al-tolerant and 13 in Al-sensitive. Moreover, 378 DEGs were mapped in Al-QTL regions for the Al-tolerant and 213 for the Al-sensitive. Furthermore, Al stress is primarily regulated at the transcriptional level in popcorn. Important genes identified, such as HDT1, SWEET4a, GSTs, SAD9, PIP2-2, CASP-like 5, and AGP, may benefit molecular assisted popcorn breeding or be useful in biotechnological approaches. These findings offer insights into the mechanisms of Al tolerance in popcorn and provide a 'hypothesis-free' strategy for identifying and prioritizing candidate genes that could be used to develop molecular markers or cultivars resilient to acidic soils.
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Affiliation(s)
- Vitor Batista Pinto
- Departamento de Biologia Geral, Universidade Federal de Viçosa (UFV), Viçosa, MG, 36570-000, Brazil.
- Laboratório de Biologia Celular e Tecidual, Centro de Biociências e Biotecnologia (CBB), Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Campos dos Goytacazes, RJ, 28013-602, Brazil.
| | | | - Maximiller Dal-Bianco
- Laboratório de Bioquímica Genética de Plantas/BIOAGRO. UFV, Viçosa, MG, 36570-000, Brazil
| | - Fabricio Almeida-Silva
- Laboratório de Química e Função de Proteínas e Peptídeos, CBB. UENF, Campos dos Goytacazes, RJ, 28013-602, Brazil
| | - Thiago Motta Venancio
- Laboratório de Química e Função de Proteínas e Peptídeos, CBB. UENF, Campos dos Goytacazes, RJ, 28013-602, Brazil
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13
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Wang P, Cao H, Quan S, Wang Y, Li M, Wei P, Zhang M, Wang H, Ma H, Li X, Yang ZB. Nitrate improves aluminium resistance through SLAH-mediated citrate exudation from roots. PLANT, CELL & ENVIRONMENT 2023; 46:3518-3541. [PMID: 37574955 DOI: 10.1111/pce.14688] [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: 01/20/2023] [Revised: 07/17/2023] [Accepted: 08/01/2023] [Indexed: 08/15/2023]
Abstract
Aluminium (Al) toxicity is one of the major constraint for crop production in acidic soil, and the inappropriate utilization of nitrogen fertilizer can accelerate soil acidification. Despite previous studies investigating the regulation of nitrogen forms in Al toxicity of plants, the underlying mechanism, particularly at the molecular level, remains unclear. This study aims to uncover the potentially regulatory mechanism of nitrate (NO3 - ) in the Al resistance of maize and Arabidopsis. NO3 - conservatively improves Al resistance in maize and Arabidopsis, with nitrate-elevated citrate synthesis and exudation potentially playing critical roles in excluding Al from the root symplast. ZmSLAH2 in maize and AtSLAH1 in Arabidopsis are essential for the regulation of citrate exudation and NO3 - -promoted Al resistance, with ZmMYB81 directly targeting the ZmSLAH2 promoter to activate its activity. Additionally, NO3 - transport is necessary for NO3 - -promoted Al resistance, with ZmNRT1.1A and AtNRT1.1 potentially playing vital roles. The suppression of NO3 - transport in roots by ammonium (NH4 + ) may inhibit NO3 - -promoted Al resistance. This study provides novel insights into the understanding of the crucial role of NO3 - -mediated signalling in the Al resistance of plants and offers guidance for nitrogen fertilization on acid soils.
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Affiliation(s)
- Peng Wang
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University (Qingdao), Qingdao, China
| | - Hongrui Cao
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University (Qingdao), Qingdao, China
| | - Shuxuan Quan
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - Yong Wang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - Mu Li
- Maize Research Institute, Jilin Academy of Agricultural Sciences, Gongzhuling, China
| | - Ping Wei
- Linyi Academy of Agricultural Sciences, Linyi, China
| | - Meng Zhang
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University (Qingdao), Qingdao, China
| | - Hui Wang
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University (Qingdao), Qingdao, China
| | - Hongyu Ma
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University (Qingdao), Qingdao, China
| | - Xiaofeng Li
- College of Agronomy, Guangxi University, Nanning, China
| | - Zhong-Bao Yang
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Science, Shandong University (Qingdao), Qingdao, China
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14
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Liu C, Hu X, Zang L, Liu X, Wei Y, Wang X, Jin X, Du C, Yu Y, He W, Zhang S. Overexpression of ZmSTOP1-A Enhances Aluminum Tolerance in Arabidopsis by Stimulating Organic Acid Secretion and Reactive Oxygen Species Scavenging. Int J Mol Sci 2023; 24:15669. [PMID: 37958653 PMCID: PMC10649276 DOI: 10.3390/ijms242115669] [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: 09/12/2023] [Revised: 10/14/2023] [Accepted: 10/20/2023] [Indexed: 11/15/2023] Open
Abstract
Aluminum (Al) toxicity and low pH are major factors limiting plant growth in acidic soils. Sensitive to Proton Rhizotoxicity 1 (STOP1) transcription factors respond to these stresses by regulating the expression of multiple Al- or low pH-responsive genes. ZmSTOP1-A, a STOP1-like protein from maize (Zea mays), was localized to the nucleus and showed transactivation activity. ZmSTOP1-A was expressed moderately in both roots and shoots of maize seedlings, but was not induced by Al stress or low pH. Overexpression of ZmSTOP1-A in Arabidopsis Atstop1 mutant partially restored Al tolerance and improved low pH tolerance with respect to root growth. Regarding Al tolerance, ZmSTOP1-A/Atstop1 plants showed clear upregulation of organic acid transporter genes, leading to increased organic acid secretion and reduced Al accumulation in roots. In addition, the antioxidant enzyme activity in roots and shoots of ZmSTOP1-A/Atstop1 plants was significantly enhanced, ultimately alleviating Al toxicity via scavenging reactive oxygen species. Similarly, ZmSTOP1-A could directly activate ZmMATE1 expression in maize, positively correlated with the number of Al-responsive GGNVS cis-elements in the ZmMATE1 promoter. Our results reveal that ZmSTOP1-A is an important transcription factor conferring Al tolerance by enhancing organic acid secretion and reactive oxygen species scavenging in Arabidopsis.
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Affiliation(s)
- Chan Liu
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest China of Agricultural Department, Ministry of Agriculture, Maize Research Institute, Sichuan Agricultural University, Chengdu 611130, China; (C.L.); (X.H.); (L.Z.); (X.L.); (Y.W.); (X.W.); (X.J.); (C.D.); (Y.Y.)
| | - Xiaoqi Hu
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest China of Agricultural Department, Ministry of Agriculture, Maize Research Institute, Sichuan Agricultural University, Chengdu 611130, China; (C.L.); (X.H.); (L.Z.); (X.L.); (Y.W.); (X.W.); (X.J.); (C.D.); (Y.Y.)
| | - Lei Zang
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest China of Agricultural Department, Ministry of Agriculture, Maize Research Institute, Sichuan Agricultural University, Chengdu 611130, China; (C.L.); (X.H.); (L.Z.); (X.L.); (Y.W.); (X.W.); (X.J.); (C.D.); (Y.Y.)
| | - Xiaofeng Liu
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest China of Agricultural Department, Ministry of Agriculture, Maize Research Institute, Sichuan Agricultural University, Chengdu 611130, China; (C.L.); (X.H.); (L.Z.); (X.L.); (Y.W.); (X.W.); (X.J.); (C.D.); (Y.Y.)
| | - Yuhui Wei
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest China of Agricultural Department, Ministry of Agriculture, Maize Research Institute, Sichuan Agricultural University, Chengdu 611130, China; (C.L.); (X.H.); (L.Z.); (X.L.); (Y.W.); (X.W.); (X.J.); (C.D.); (Y.Y.)
| | - Xue Wang
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest China of Agricultural Department, Ministry of Agriculture, Maize Research Institute, Sichuan Agricultural University, Chengdu 611130, China; (C.L.); (X.H.); (L.Z.); (X.L.); (Y.W.); (X.W.); (X.J.); (C.D.); (Y.Y.)
| | - Xinwu Jin
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest China of Agricultural Department, Ministry of Agriculture, Maize Research Institute, Sichuan Agricultural University, Chengdu 611130, China; (C.L.); (X.H.); (L.Z.); (X.L.); (Y.W.); (X.W.); (X.J.); (C.D.); (Y.Y.)
| | - Chengfeng Du
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest China of Agricultural Department, Ministry of Agriculture, Maize Research Institute, Sichuan Agricultural University, Chengdu 611130, China; (C.L.); (X.H.); (L.Z.); (X.L.); (Y.W.); (X.W.); (X.J.); (C.D.); (Y.Y.)
| | - Yan Yu
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest China of Agricultural Department, Ministry of Agriculture, Maize Research Institute, Sichuan Agricultural University, Chengdu 611130, China; (C.L.); (X.H.); (L.Z.); (X.L.); (Y.W.); (X.W.); (X.J.); (C.D.); (Y.Y.)
| | - Wenzhu He
- Crop Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu 610066, China;
| | - Suzhi Zhang
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest China of Agricultural Department, Ministry of Agriculture, Maize Research Institute, Sichuan Agricultural University, Chengdu 611130, China; (C.L.); (X.H.); (L.Z.); (X.L.); (Y.W.); (X.W.); (X.J.); (C.D.); (Y.Y.)
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15
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Wang X, Ai S, Liao H. Deciphering Interactions between Phosphorus Status and Toxic Metal Exposure in Plants and Rhizospheres to Improve Crops Reared on Acid Soil. Cells 2023; 12:cells12030441. [PMID: 36766784 PMCID: PMC9913701 DOI: 10.3390/cells12030441] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/10/2023] [Accepted: 01/28/2023] [Indexed: 01/31/2023] Open
Abstract
Acid soils are characterized by deficiencies in essential nutrient elements, oftentimes phosphorus (P), along with toxicities of metal elements, such as aluminum (Al), manganese (Mn), and cadmium (Cd), each of which significantly limits crop production. In recent years, impressive progress has been made in revealing mechanisms underlying tolerance to high concentrations of Al, Mn, and Cd. Phosphorus is an essential nutrient element that can alleviate exposure to potentially toxic levels of Al, Mn, and Cd. In this review, recent advances in elucidating the genes responsible for the uptake, translocation, and redistribution of Al, Mn, and Cd in plants are first summarized, as are descriptions of the mechanisms conferring resistance to these toxicities. Then, literature highlights information on interactions of P nutrition with Al, Mn, and Cd toxicities, particularly possible mechanisms driving P alleviation of these toxicities, along with potential applications for crop improvement on acid soils. The roles of plant phosphate (Pi) signaling and associated gene regulatory networks relevant for coping with Al, Mn, and Cd toxicities, are also discussed. To develop varieties adapted to acid soils, future work needs to further decipher involved signaling pathways and key regulatory elements, including roles fulfilled by intracellular Pi signaling. The development of new strategies for remediation of acid soils should integrate the mechanisms of these interactions between limiting factors in acid soils.
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Affiliation(s)
- Xiurong Wang
- Root Biology Center, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural University, Guangzhou 510642, China
| | - Shaoying Ai
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Hong Liao
- Root Biology Center, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Correspondence: ; Tel./Fax: +86-0591-88260230
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16
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Liu H, Zhu R, Shu K, Lv W, Wang S, Wang C. Aluminum stress signaling, response, and adaptive mechanisms in plants. PLANT SIGNALING & BEHAVIOR 2022; 17:2057060. [PMID: 35467484 PMCID: PMC9045826 DOI: 10.1080/15592324.2022.2057060] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/17/2022] [Accepted: 03/18/2022] [Indexed: 05/27/2023]
Abstract
Over 40% of arable land in the world is acidic. Al stress has become a global agricultural problem affecting plant growth and limiting crop production in acidic soils. Plants have evolved different regulatory mechanisms of adaptation to exogenous environmental challenges, such as Al stress, by altering their growth patterns. In the past decades, several key genes involved in plant response to Al stress and the mechanism of Al detoxification have been revealed. However, the signaling pathways of plant response to Al stress and the regulatory mechanism of plant Al tolerance remain poorly understood. In this review, we summarized the findings of recent studies on the plant Al tolerance mechanism and the molecular regulation mechanism of phytohormones in response to Al stress. This review improves our understanding of the regulatory mechanisms of plants in response to Al stress and provides a reference for the breeding of Al-tolerant crops.
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Affiliation(s)
- Huabin Liu
- College of Life and Health Sciences, Anhui Science and Technology University, Fengyang, China
| | - Rong Zhu
- College of Life and Health Sciences, Anhui Science and Technology University, Fengyang, China
| | - Kai Shu
- School of Ecology and Environment, Northwestern Polytechnical University, Xi’an, China
| | - Weixiang Lv
- Key Laboratory of Southwest China Wildlife Resources Conservation, China West Normal University, Nanchong, China
| | - Song Wang
- College of Life and Health Sciences, Anhui Science and Technology University, Fengyang, China
| | - Chengliang Wang
- Anhui Provincial Key Lab. of the Conservation and Exploitation of Biological Resources, School of Life Sciences, Anhui Normal University, Wuhu, China
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17
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Wang Z, Liu Y, Cui W, Gong L, He Y, Zhang Q, Meng X, Yang Z, You J. Characterization of GmMATE13 in its contribution of citrate efflux and aluminum resistance in soybeans. FRONTIERS IN PLANT SCIENCE 2022; 13:1027560. [PMID: 36340364 PMCID: PMC9634752 DOI: 10.3389/fpls.2022.1027560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 09/27/2022] [Indexed: 06/16/2023]
Abstract
Citrate exudation mediated by a citrate transporter of the MATE protein family is critical for resisting aluminum (Al) toxicity in soybeans. However, the expression patterns of citrate transporter genes differ under Al stress. Thus, exploring the responsive pattern of GmMATEs in response to Al stress is of great importance to understand the Al resistance mechanism in soybeans. In the present study, the phylogenetic analysis, transcriptionally expressed pattern, and function of GmMATE13 were investigated. The results show that soybean GmMATE13 is highly homologous to known citrate transporter proteins from other plants. Under Al exposure, the transcript abundance of GmMATE13 was increased during a 24 h Al treatment period. The expression of GmMATE13 is specifically induced by Al exposure, but not by the status of Fe, Cu, Cd, or La. Moreover, it was also highly increased when soybean seedlings were grown on acidic soil with a high Al content. Subcellular localization showed that GmMATE13 was localized on the plasma membrane when it was transiently expressed in Arabidopsis protoplasts. Investigation of tissue localization of GmMATE13 expression by investigating GUS activity staining under control of the GmMATE13 promoter showed that it was mainly expressed in the central cylinder in the root tips of the soybean under Al-free conditions, yet extended to cortical and epidermis cells under Al stress. Finally, overexpressing GmMATE13 in soybean hairy roots enhanced Al resistance by increasing citrate efflux. Collectively, we conclude that GmMATE13 is a promising candidate to improve the resistance of soybean to Al toxicity in acidic soil.
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Jia Y, Pradeep K, Vance WH, Zhang X, Weir B, Wei H, Deng Z, Zhang Y, Xu X, Zhao C, Berger JD, Bell RW, Li C. Identification of two chickpea multidrug and toxic compound extrusion transporter genes transcriptionally upregulated upon aluminum treatment in root tips. FRONTIERS IN PLANT SCIENCE 2022; 13:909045. [PMID: 35991422 PMCID: PMC9389367 DOI: 10.3389/fpls.2022.909045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 07/15/2022] [Indexed: 06/15/2023]
Abstract
Aluminum (Al) toxicity poses a significant challenge for the yield improvement of chickpea, which is an economically important legume crop with high nutritional value in human diets. The genetic basis of Al-tolerance in chickpea remains unclear. Here, we assessed the Al-tolerance of 8 wild Cicer and one cultivated chickpea (PBA Pistol) accessions by measuring the root elongation in solution culture under control (0 μM Al3+) and Al treatments (15, 30 μM Al3+). Compared to PBA Pistol, the wild Cicer accessions displayed both tolerant and sensitive phenotypes, supporting wild Cicer as a potential genetic pool for Al-tolerance improvement. To identify potential genes related to Al-tolerance in chickpea, genome-wide screening of multidrug and toxic compound extrusion (MATE) encoding genes was performed. Fifty-six MATE genes were identified in total, which can be divided into 4 major phylogenetic groups. Four chickpea MATE genes (CaMATE1-4) were clustered with the previously characterized citrate transporters MtMATE66 and MtMATE69 in Medicago truncatula. Transcriptome data showed that CaMATE1-4 have diverse expression profiles, with CaMATE2 being root-specific. qRT-PCR analyses confirmed that CaMATE2 and CaMATE4 were highly expressed in root tips and were up-regulated upon Al treatment in all chickpea lines. Further measurement of carboxylic acids showed that malonic acid, instead of malate or citrate, is the major extruded acid by Cicer spp. root. Protein structural modeling analyses revealed that CaMATE2 has a divergent substrate-binding cavity from Arabidopsis AtFRD3, which may explain the different acid-secretion profile for chickpea. Pangenome survey showed that CaMATE1-4 have much higher genetic diversity in wild Cicer than that in cultivated chickpea. This first identification of CaMATE2 and CaMATE4 responsive to Al3+ treatment in Cicer paves the way for future functional characterization of MATE genes in Cicer spp., and to facilitate future design of gene-specific markers for Al-tolerant line selection in chickpea breeding programs.
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Affiliation(s)
- Yong Jia
- Western Crop Genetic Alliance, Murdoch University, Perth, WA, Australia
- State Agricultural Biotechnology Centre, College of Science, Health, Engineering and Education, Murdoch University, Perth, WA, Australia
- Department of Primary Industry and Regional Development, Government of Western Australia, Perth, WA, Australia
| | - Karthika Pradeep
- Centre for Sustainable Farming Systems, Future Foods Institute, Murdoch University, Perth, WA, Australia
| | - Wendy H. Vance
- Centre for Sustainable Farming Systems, Future Foods Institute, Murdoch University, Perth, WA, Australia
| | - Xia Zhang
- Shandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao, China
| | - Brayden Weir
- State Agricultural Biotechnology Centre, College of Science, Health, Engineering and Education, Murdoch University, Perth, WA, Australia
| | - Hongru Wei
- College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Zhiwei Deng
- College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Yujuan Zhang
- State Agricultural Biotechnology Centre, College of Science, Health, Engineering and Education, Murdoch University, Perth, WA, Australia
| | - Xuexin Xu
- Shandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao, China
| | - Changxing Zhao
- Shandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao, China
| | | | - Richard William Bell
- Centre for Sustainable Farming Systems, Future Foods Institute, Murdoch University, Perth, WA, Australia
| | - Chengdao Li
- Western Crop Genetic Alliance, Murdoch University, Perth, WA, Australia
- State Agricultural Biotechnology Centre, College of Science, Health, Engineering and Education, Murdoch University, Perth, WA, Australia
- Department of Primary Industry and Regional Development, Government of Western Australia, Perth, WA, Australia
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Watanabe M, Otagaki S, Matsumoto S, Shiratake K. Genome-Wide Analysis of Multidrug and Toxic Compound Extruction Transporters in Grape. FRONTIERS IN PLANT SCIENCE 2022; 13:892638. [PMID: 35909729 PMCID: PMC9330396 DOI: 10.3389/fpls.2022.892638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
Grape (Vitis vinifera L.) is an important fruit crop in the world. It is used as a table grape and is also used for raisin and wine production. Grape berries accumulate secondary metabolites, such as anthocyanins, tannins, and resveratrol, which are known as functional compounds for human health. Multidrug and toxic compound extrusion transporter (MATEs) transport secondary metabolites. MATEs also transport other solutes, including organic acids, and toxic xenobiotics, depending on cation gradient and play various roles in plants. MATE comprises 300-500 amino acid residues and possesses a MATE domain and 8-12 transmembrane domains. In the present study, 59 MATE genes were identified in the grape genome, and phylogenetic analysis revealed the presence of four groups of grape MATEs (Group 1-4). Their information, such as gene structures, protein motifs, predicted subcellular localizations, and gene IDs of four genome annotations, that is, CRIBI v1, CRIBI v2, Genoscope, and Vcost v3, were annotated. The transport substrates and physiological functions of grape MATEs were estimated based on their homology with the analyzed MATEs in other plant species. Group 1 may transport toxic compounds and alkaloids, Group 2 may transport polyphenolic compounds, Group 3 may transport organic acids, and Group 4 may transport plant hormones related to signal transduction. In addition to the known anthocyanin transporters, VvMATE37 and VvMATE39, a novel anthocyanin transporter, VvMATE38 in Group 2, was suggested as a key transporter for anthocyanin accumulation in grape berry skin. VvMATE46, VvMATE47, and VvMATE49 in Group 3 may contribute to Al3+ detoxification and Fe2+/Fe3+ translocation via organic acid transport. This study provides helpful and fundamental information for grape MATE studies and resolves the confusion of gene IDs in different genome annotations.
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Xie L, Li H, Zhong Z, Guo J, Hu G, Gao Y, Tong Z, Liu M, Hu S, Tong H, Zhang P. Metabolome Analysis under Aluminum Toxicity between Aluminum-Tolerant and -Sensitive Rice (Oryza sativa L.). PLANTS 2022; 11:plants11131717. [PMID: 35807670 PMCID: PMC9269133 DOI: 10.3390/plants11131717] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 06/23/2022] [Accepted: 06/24/2022] [Indexed: 12/05/2022]
Abstract
Aluminum (Al) solubilizes into trivalent ions (Al3+) on acidic soils, inhibiting root growth. Since about 13% of global rice cultivation is grown on acidic soils, improving Al tolerance in rice may significantly increase yields. In the present study, metabolome analysis under Al toxicity between the Al-tolerant variety Nipponbare and the Al-sensitive variety H570 were performed. There were 45 and 83 differential metabolites which were specifically detected in Nipponbare and H570 under Al toxicity, respectively. Furthermore, the results showed that 16 lipids out of 45 total metabolites were down-regulated, and 7 phenolic acids as well as 4 alkaloids of 45 metabolites were up-regulated in Nipponbare, while 12 amino acids and their derivatives were specifically detected in H570, of which 11 amino acids increased, including L-homoserine and L-methionine, which are involved in cysteine synthesis, L-ornithine and L-proline, which are associated with putrescine synthesis, and 1-aminocyclopropane-1-carboxylate, which is associated with ethylene synthesis. The contents of cysteine and s-(methyl) glutathione, which were reported to be related to Al detoxification in rice, decreased significantly. Meanwhile, putrescine was accumulated in H570, while there was no significant change in Nipponbare, so we speculated that it might be an intermediate product of Al detoxification in rice. The differential metabolites detected between Al-tolerant and -sensitive rice variants in the present study might play important roles in Al tolerance. These results provide new insights in the mechanisms of Al tolerance in rice.
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Affiliation(s)
- Lihua Xie
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China; (L.X.); (H.L.); (Z.Z.); (J.G.); (G.H.); (Y.G.); (Z.T.); (M.L.)
- Research Center of Plant Functional Genes and Tissue Culture Technology, College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Huijuan Li
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China; (L.X.); (H.L.); (Z.Z.); (J.G.); (G.H.); (Y.G.); (Z.T.); (M.L.)
| | - Zhengzheng Zhong
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China; (L.X.); (H.L.); (Z.Z.); (J.G.); (G.H.); (Y.G.); (Z.T.); (M.L.)
| | - Junjie Guo
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China; (L.X.); (H.L.); (Z.Z.); (J.G.); (G.H.); (Y.G.); (Z.T.); (M.L.)
| | - Guocheng Hu
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China; (L.X.); (H.L.); (Z.Z.); (J.G.); (G.H.); (Y.G.); (Z.T.); (M.L.)
| | - Yu Gao
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China; (L.X.); (H.L.); (Z.Z.); (J.G.); (G.H.); (Y.G.); (Z.T.); (M.L.)
| | - Zhihua Tong
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China; (L.X.); (H.L.); (Z.Z.); (J.G.); (G.H.); (Y.G.); (Z.T.); (M.L.)
| | - Meilan Liu
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China; (L.X.); (H.L.); (Z.Z.); (J.G.); (G.H.); (Y.G.); (Z.T.); (M.L.)
| | - Songping Hu
- Research Center of Plant Functional Genes and Tissue Culture Technology, College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang 330045, China
- Correspondence: author: (S.H.); (H.T.); (P.Z.)
| | - Hanhua Tong
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China; (L.X.); (H.L.); (Z.Z.); (J.G.); (G.H.); (Y.G.); (Z.T.); (M.L.)
- Correspondence: author: (S.H.); (H.T.); (P.Z.)
| | - Peng Zhang
- State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China; (L.X.); (H.L.); (Z.Z.); (J.G.); (G.H.); (Y.G.); (Z.T.); (M.L.)
- Correspondence: author: (S.H.); (H.T.); (P.Z.)
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21
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Yaashikaa PR, Kumar PS, Jeevanantham S, Saravanan R. A review on bioremediation approach for heavy metal detoxification and accumulation in plants. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 301:119035. [PMID: 35196562 DOI: 10.1016/j.envpol.2022.119035] [Citation(s) in RCA: 114] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 01/30/2022] [Accepted: 02/17/2022] [Indexed: 05/21/2023]
Abstract
Nowadays, the accumulation of toxic heavy metals in soil and water streams is considered a serious environmental problem that causes various harmful effects on plants and animals. Phytoremediation is an effective, green, and economical bioremediation approach by which the harmful heavy metals in the contaminated ecosystem can be detoxified and accumulated in the plant. Hyperaccumulators exude molecules called transporters that carry and translocate the heavy metals present in the soil to different plant parts. The hyperaccumulator plant genes can confine higher concentrations of toxic heavy metals in their tissues. The efficiency of phytoremediation relies on various parameters such as soil properties (pH and soil type), organic matters in soil, heavy metal type, nature of rhizosphere, characteristics of rhizosphere microflora, etc. The present review comprehensively discusses the toxicity effect of heavy metals on the environment and different phytoremediation mechanisms for the transport and accumulation of heavy metals from polluted soil. This review gave comprehensive insights into plants tolerance for the higher heavy metal concentration their responses for heavy metal accumulation and the different mechanisms involved for heavy metal tolerance. The current status and the characteristic features that need to be improved in the phytoremediation process are also reviewed in detail.
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Affiliation(s)
- P R Yaashikaa
- Department of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India.
| | - S Jeevanantham
- Department of Biotechnology, Rajalakshmi Engineering College, Chennai, 602105, India
| | - R Saravanan
- Department of Mechanical Engineering, Universidad de Tarapacá, Arica, Chile
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22
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Genome-Wide Identification and Characterisation of Wheat MATE Genes Reveals Their Roles in Aluminium Tolerance. Int J Mol Sci 2022; 23:ijms23084418. [PMID: 35457236 PMCID: PMC9030646 DOI: 10.3390/ijms23084418] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 04/11/2022] [Accepted: 04/15/2022] [Indexed: 11/17/2022] Open
Abstract
The Multidrug and toxin efflux (MATE) gene family plays crucial roles in plant growth and development and response to adverse stresses. This work investigated the structural and evolutionary characteristics, expression profiling and potential functions involved in aluminium (Al) tolerance from a genome-wide level. In total, 211 wheat MATE genes were identified, which were classified into four subfamilies and unevenly distributed on chromosomes. Duplication analysis showed that fragments and tandem repeats played the main roles in the amplification of TaMATEs, and Type II functional disproportionation had a leading role in the differentiation of TaMATEs. TaMATEs had abundant Al resistance and environmental stress-related elements, and generally had a high expression level in roots and leaves and in response to Al stress. The 3D structure prediction by AlphaFold and molecular docking showed that six TaMATE proteins localised in the plasmalemma could combine with citrate via amino acids in the citrate exuding motif and other sites, and then transport citrate to soil to form citrate aluminium. Meanwhile, citrate aluminium formed in root cells might be transported to leaves by TaMATEs to deposit in vacuoles, thereby alleviating Al toxicity.
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23
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Zhou H, Xiao X, Asjad A, Han D, Zheng W, Xiao G, Huang Y, Zhou Q. Integration of GWAS and transcriptome analyses to identify SNPs and candidate genes for aluminum tolerance in rapeseed (Brassica napus L.). BMC PLANT BIOLOGY 2022; 22:130. [PMID: 35313826 PMCID: PMC8935790 DOI: 10.1186/s12870-022-03508-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 03/02/2022] [Indexed: 06/02/2023]
Abstract
BACKGROUND The exchangeable aluminum (Al), released from the acid soils, is another addition to the environmental stress factors in the form of Al toxicity stress. Al stress affects the normal crop development and reduces the overall yield of rapeseed (Brassica napus L.). The response mechanism of plants to Al toxicity is complicated and difficult to understand with few QTL related studies in rapeseed under Al toxicity stress. RESULT Using 200,510 SNPs developed by SLAF-seq (specific-locus amplified fragment sequencing) technology, we carried out the genome-wide association analysis (GWAS) in a population of 254 inbred lines of B. napus with large genetic variation and Al-tolerance differences. There were 43 SNPs significantly associated with eight Al-tolerance traits in the seedling stage were detected on 14 chromosomes, and 777 candidate genes were screened at the flanking 100 kb region of these SNPs. Moreover, RNA-seq detected 8291 and 5341 DEGs (the differentially expressed gene) in the Al -tolerant line (ATL) and -sensitive line (ASL), respectively. Based on integration of GWAS and RNA-seq analysis, 64 candidate genes from GWAS analysis differentially expressed at least once in 6 h vs 0 h or 24 h vs 0 h conditions in ATL or ASL. Moreover, four out of sixty-four candidate genes (BnaA03g30320D, BnaA10g11500D, BnaC03g38360D and BnaC06g30030D) were differentially expressed in both 6 h and 24 h compared to 0 h (control) conditions in both lines. The proposed model based on the candidate genes excavated in this study highlighted that Al stress disturb the oxidation-redox balance, causing abnormal synthesis and repair of cell wall and ABA signal transduction, ultimately resulting in inhibition of root elongation. CONCLUSIONS The integration of GWAS and transcriptome analysis provide an effective strategy to explore the SNPs and candidate genes, which has a potential to develop molecular markers for breeding Al tolerant rapeseed varieties along with theoretical basis of molecular mechanisms for Al toxicity response of Brassica napus plants.
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Affiliation(s)
- Huiwen Zhou
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding (Jiangxi Agricultural University), Ministry of Education/Jiangxi Province, Nanchang, 330045, Jiangxi Province, China
- Institute of Jiangxi Oil-tea Camellia, Jiujiang University, Jiujiang, 332005, Jiangxi Province, China
| | - Xiaojun Xiao
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding (Jiangxi Agricultural University), Ministry of Education/Jiangxi Province, Nanchang, 330045, Jiangxi Province, China
- Jiangxi Institute of Red Soil, Jinxian, 331717, Jiangxi Province, China
| | - Ali Asjad
- Department of Agriculture and Fisheries, PO Box 1054, Mareeba, QLD, 4880, Australia
| | - Depeng Han
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding (Jiangxi Agricultural University), Ministry of Education/Jiangxi Province, Nanchang, 330045, Jiangxi Province, China
- Jiangxi Institute of Red Soil, Jinxian, 331717, Jiangxi Province, China
| | - Wei Zheng
- Jiangxi Institute of Red Soil, Jinxian, 331717, Jiangxi Province, China
| | - Guobin Xiao
- Jiangxi Institute of Red Soil, Jinxian, 331717, Jiangxi Province, China
| | - Yingjin Huang
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding (Jiangxi Agricultural University), Ministry of Education/Jiangxi Province, Nanchang, 330045, Jiangxi Province, China.
| | - Qinghong Zhou
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding (Jiangxi Agricultural University), Ministry of Education/Jiangxi Province, Nanchang, 330045, Jiangxi Province, China.
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Nimmy MS, Kumar V, Suthanthiram B, Subbaraya U, Nagar R, Bharadwaj C, Jain PK, Krishnamurthy P. A Systematic Phylogenomic Classification of the Multidrug and Toxic Compound Extrusion Transporter Gene Family in Plants. FRONTIERS IN PLANT SCIENCE 2022; 13:774885. [PMID: 35371145 PMCID: PMC8970042 DOI: 10.3389/fpls.2022.774885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 01/24/2022] [Indexed: 06/14/2023]
Abstract
Multidrug and toxic compound extrusion (MATE) transporters comprise a multigene family that mediates multiple functions in plants through the efflux of diverse substrates including organic molecules, specialized metabolites, hormones, and xenobiotics. MATE classification based on genome-wide studies remains ambiguous, likely due to a lack of large-scale phylogenomic studies and/or reference sequence datasets. To resolve this, we established a phylogeny of the plant MATE gene family using a comprehensive kingdom-wide phylogenomic analysis of 74 diverse plant species. We identified more than 4,000 MATEs, which were classified into 14 subgroups based on a systematic bioinformatics pipeline using USEARCH, blast+ and synteny network tools. Our classification was performed using a four-step process, whereby MATEs sharing ≥ 60% protein sequence identity with a ≤ 1E-05 threshold at different sequence lengths (either full-length, ≥ 60% length, or ≥ 150 amino acids) or retaining in the similar synteny blocks were assigned to the same subgroup. In this way, we assigned subgroups to 95.8% of the identified MATEs, which we substantiated using synteny network clustering analysis. The subgroups were clustered under four major phylogenetic groups and named according to their clockwise appearance within each group. We then generated a reference sequence dataset, the usefulness of which was demonstrated in the classification of MATEs in additional species not included in the original analysis. Approximately 74% of the plant MATEs exhibited synteny relationships with angiosperm-wide or lineage-, order/family-, and species-specific conservation. Most subgroups evolved independently, and their distinct evolutionary trends were likely associated with the development of functional novelties or the maintenance of conserved functions. Together with the systematic classification and synteny network profiling analyses, we identified all the major evolutionary events experienced by the MATE gene family in plants. We believe that our findings and the reference dataset provide a valuable resource to guide future functional studies aiming to explore the key roles of MATEs in different aspects of plant physiology. Our classification framework can also be readily extendable to other (super) families.
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Affiliation(s)
| | - Vinod Kumar
- Department of Molecular Biology and Genetic Engineering, Bihar Agricultural University, Bhagalpur, India
| | | | - Uma Subbaraya
- Crop Improvement Division, ICAR–National Research Centre for Banana, Tiruchirappalli, India
| | - Ramawatar Nagar
- ICAR–National Institute for Plant Biotechnology, New Delhi, India
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25
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Liu J, Shi B, Zhang M, Liu G, Ding Z, Tian H. Transition Zone1 Negatively Regulates Arabidopsis Aluminum Resistance Through Interaction With Aconitases. FRONTIERS IN PLANT SCIENCE 2022; 12:827797. [PMID: 35154218 PMCID: PMC8829429 DOI: 10.3389/fpls.2021.827797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 12/27/2021] [Indexed: 06/14/2023]
Abstract
The soluble form of aluminum (Al) is a major constraint to crop production in acidic soils. The Al exclusion correlated with the Al-induced organic acid is considered as an important mechanism of Al resistance. The regulation of organic acid exudation in response to Al stress mediated by the root organic acid transporters has been extensively studied. However, how plants respond to Al stress through the regulation of organic acid homeostasis is not well understood. In this study, we identified the functionally unknown Transition zone1 (TZ1) as an Al-inducible gene in the root transition zone, the most sensitive region to Al stress, in Arabidopsis. tz1 mutants showed enhanced Al resistance and displayed greatly reduced root growth inhibition. Furthermore, TZ1 was found to interact with the aconitases (ACOs) which can catalyze the conversion from citrate, one of the most important organic acids, into isocitrate. Consistently, in tz1 mutants, the citric acid content was highly increased. Collectively, this study provides evidence to show that TZ1 negatively regulates root growth response to Al stress through interacting with ACOs and regulating citric acid homeostasis.
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Affiliation(s)
- Jiajia Liu
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao, China
| | - Benhui Shi
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao, China
| | - Mengxin Zhang
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao, China
| | - Guangchao Liu
- Key Lab of Plant Biotechnology in Universities of Shandong Province, College of Life Science, Qingdao Agricultural University, Qingdao, China
| | - Zhaojun Ding
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao, China
| | - Huiyu Tian
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao, China
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Chen W, Tang L, Wang J, Zhu H, Jin J, Yang J, Fan W. Research Advances in the Mutual Mechanisms Regulating Response of Plant Roots to Phosphate Deficiency and Aluminum Toxicity. Int J Mol Sci 2022; 23:ijms23031137. [PMID: 35163057 PMCID: PMC8835462 DOI: 10.3390/ijms23031137] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/15/2022] [Accepted: 01/16/2022] [Indexed: 02/08/2023] Open
Abstract
Low phosphate (Pi) availability and high aluminum (Al) toxicity constitute two major plant mineral nutritional stressors that limit plant productivity on acidic soils. Advances toward the identification of genes and signaling networks that are involved in both stresses in model plants such as Arabidopsis thaliana and rice (Oryza sativa), and in other plants as well have revealed that some factors such as organic acids (OAs), cell wall properties, phytohormones, and iron (Fe) homeostasis are interconnected with each other. Moreover, OAs are involved in recruiting of many plant-growth-promoting bacteria that are able to secrete both OAs and phosphatases to increase Pi availability and decrease Al toxicity. In this review paper, we summarize these mutual mechanisms by which plants deal with both Al toxicity and P starvation, with emphasis on OA secretion regulation, plant-growth-promoting bacteria, transcription factors, transporters, hormones, and cell wall-related kinases in the context of root development and root system architecture remodeling that plays a determinant role in improving P use efficiency and Al resistance on acidic soils.
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Affiliation(s)
- Weiwei Chen
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China;
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China; (J.W.); (H.Z.); (J.J.)
| | - Li Tang
- College of Resources and Environment, Yunan Agricultural University, Kunming 650201, China;
| | - Jiayi Wang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China; (J.W.); (H.Z.); (J.J.)
| | - Huihui Zhu
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China; (J.W.); (H.Z.); (J.J.)
| | - Jianfeng Jin
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China; (J.W.); (H.Z.); (J.J.)
| | - Jianli Yang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China; (J.W.); (H.Z.); (J.J.)
- Correspondence: (J.Y.); (W.F.); Tel.: +86-871-6522-7681 (W.F.); Fax: +86-571-8820-6438 (J.Y.)
| | - Wei Fan
- College of Horticulture and Landscape, Yunan Agricultural University, Kunming 650201, China
- Correspondence: (J.Y.); (W.F.); Tel.: +86-871-6522-7681 (W.F.); Fax: +86-571-8820-6438 (J.Y.)
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27
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Cai S, Wu L, Wang G, Liu J, Song J, Xu H, Luo J, Shen Y, Shen S. DA-6 improves sunflower seed vigor under Al 3+ stress by regulating Al 3+ balance and ethylene metabolic. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 229:113048. [PMID: 34883324 DOI: 10.1016/j.ecoenv.2021.113048] [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: 08/17/2021] [Revised: 11/05/2021] [Accepted: 11/29/2021] [Indexed: 06/13/2023]
Abstract
Aluminum (Al3+) stress restricts plant seed germination and seedling growth seriously. Here, the sunflower "S175″ variety was used to explore the technique of improving seed vigor under Al3+ stress and investigate the effect of diethyl aminoethyl hexanoate (DA-6) on physiological characteristics in sunflower seeds during germination under Al3+ stress. The results showed that 3.0 mmol·L-1 Al3+ treatment significantly suppressed the sunflower seed germination and seedling growth. Al3+ stress significantly increased Al3+ content and secretion rates of citric and malic acids in sunflower seeds during germination. Besides, endogenous ethylene content was increased in Al3+-treated seeds. DA-6 serves as a positive signal to regulate the sunflower seed germination under Al3+ stress. Moreover, DA-6 enhanced the activities of malic dehydrogenase, citrate synthase, and isocitrate dehydrogenase, up-regulated the expressions of organic acid transport-related genes (ALMT and MATE), resulting in reduced accumulation of Al3+. Furthermore, exogenous DA-6 mitigated excessive accumulation of ethylene by decreasing the 1-aminocyclopropane-1-dihydrodipicolinate synthase activity and related-gene expression. However, DA-6 treatment had no effect on abscisic acid or gibberellin metabolism in sunflower seeds under Al3+ stress. These results confirmed that DA-6 application enhanced the germination capacity through induction of the synthesis and transport of malic and citric acids, and suppression of the excessive accumulation of endogenous ethylene, thus contributing to alleviate Al3+ toxicity in sunflower seeds.
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Affiliation(s)
- Shuyu Cai
- School of Architectural Engineering, Shaoxing University Yuanpei College, Qunxianzhong Road 2799, Shaoxing 312000, China.
| | - Liyuan Wu
- School of Architectural Engineering, Shaoxing University Yuanpei College, Qunxianzhong Road 2799, Shaoxing 312000, China
| | - Guofu Wang
- School of Architectural Engineering, Shaoxing University Yuanpei College, Qunxianzhong Road 2799, Shaoxing 312000, China
| | - Jianxin Liu
- School of Architectural Engineering, Shaoxing University Yuanpei College, Qunxianzhong Road 2799, Shaoxing 312000, China
| | - Jiangping Song
- School of Architectural Engineering, Shaoxing University Yuanpei College, Qunxianzhong Road 2799, Shaoxing 312000, China
| | - Hua Xu
- School of Architectural Engineering, Shaoxing University Yuanpei College, Qunxianzhong Road 2799, Shaoxing 312000, China
| | - Jie Luo
- School of Architectural Engineering, Shaoxing University Yuanpei College, Qunxianzhong Road 2799, Shaoxing 312000, China
| | - Yi Shen
- School of Architectural Engineering, Shaoxing University Yuanpei College, Qunxianzhong Road 2799, Shaoxing 312000, China
| | - Shuyu Shen
- School of Architectural Engineering, Shaoxing University Yuanpei College, Qunxianzhong Road 2799, Shaoxing 312000, China
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28
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Kim JY, Loo EPI, Pang TY, Lercher M, Frommer WB, Wudick MM. Cellular export of sugars and amino acids: role in feeding other cells and organisms. PLANT PHYSIOLOGY 2021; 187:1893-1914. [PMID: 34015139 PMCID: PMC8644676 DOI: 10.1093/plphys/kiab228] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 04/29/2021] [Indexed: 05/20/2023]
Abstract
Sucrose, hexoses, and raffinose play key roles in the plant metabolism. Sucrose and raffinose, produced by photosynthesis, are translocated from leaves to flowers, developing seeds and roots. Translocation occurs in the sieve elements or sieve tubes of angiosperms. But how is sucrose loaded into and unloaded from the sieve elements? There seem to be two principal routes: one through plasmodesmata and one via the apoplasm. The best-studied transporters are the H+/SUCROSE TRANSPORTERs (SUTs) in the sieve element-companion cell complex. Sucrose is delivered to SUTs by SWEET sugar uniporters that release these key metabolites into the apoplasmic space. The H+/amino acid permeases and the UmamiT amino acid transporters are hypothesized to play analogous roles as the SUT-SWEET pair to transport amino acids. SWEETs and UmamiTs also act in many other important processes-for example, seed filling, nectar secretion, and pollen nutrition. We present information on cell type-specific enrichment of SWEET and UmamiT family members and propose several members to play redundant roles in the efflux of sucrose and amino acids across different cell types in the leaf. Pathogens hijack SWEETs and thus represent a major susceptibility of the plant. Here, we provide an update on the status of research on intercellular and long-distance translocation of key metabolites such as sucrose and amino acids, communication of the plants with the root microbiota via root exudates, discuss the existence of transporters for other important metabolites and provide potential perspectives that may direct future research activities.
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Affiliation(s)
- Ji-Yun Kim
- Institute for Molecular Physiology and Cluster of Excellence on Plant Sciences (CEPLAS), Heinrich-Heine-University Düsseldorf, Düsseldorf 40225, Germany
| | - Eliza P -I Loo
- Institute for Molecular Physiology and Cluster of Excellence on Plant Sciences (CEPLAS), Heinrich-Heine-University Düsseldorf, Düsseldorf 40225, Germany
| | - Tin Yau Pang
- Institute for Computer Science and Department of Biology, Heinrich-Heine-University Düsseldorf, Düsseldorf 40225, Germany
| | - Martin Lercher
- Institute for Computer Science and Department of Biology, Heinrich-Heine-University Düsseldorf, Düsseldorf 40225, Germany
| | - Wolf B Frommer
- Institute for Molecular Physiology and Cluster of Excellence on Plant Sciences (CEPLAS), Heinrich-Heine-University Düsseldorf, Düsseldorf 40225, Germany
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Chikusa, Nagoya 464-8601, Japan
| | - Michael M Wudick
- Institute for Molecular Physiology and Cluster of Excellence on Plant Sciences (CEPLAS), Heinrich-Heine-University Düsseldorf, Düsseldorf 40225, Germany
- Author for communication:
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29
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Ren Z, Bai F, Xu J, Wang L, Wang X, Zhang Q, Feng C, Niu Q, Zhang L, Song J, Bao F, Liu L, He Y, Ma L, Tian W, Hou C, Li L. A chloride efflux transporter, BIG RICE GRAIN 1, is involved in mediating grain size and salt tolerance in rice. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2021; 63:2150-2163. [PMID: 34647689 DOI: 10.1101/2021.03.07.434240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Accepted: 10/10/2021] [Indexed: 05/18/2023]
Abstract
Grain size is determined by the size and number of cells in the grain. The regulation of grain size is crucial for improving crop yield; however, the genes and molecular mechanisms that control grain size remain elusive. Here, we report that a member of the detoxification efflux carrier /Multidrug and Toxic Compound Extrusion (DTX/MATE) family transporters, BIG RICE GRAIN 1 (BIRG1), negatively influences grain size in rice (Oryza sativa L.). BIRG1 is highly expressed in reproductive organs and roots. In birg1 grain, the outer parenchyma layer cells of spikelet hulls are larger than in wild-type (WT) grains, but the cell number is unaltered. When expressed in Xenopus laevis oocytes, BIRG1 exhibits chloride efflux activity. Consistent with this role of BIRG1, the birg1 mutant shows reduced tolerance to salt stress at a toxic chloride level. Moreover, grains from birg1 plants contain a higher level of chloride than those of WT plants when grown under normal paddy field conditions, and the roots of birg1 accumulate more chloride than those of WT under saline conditions. Collectively, the data suggest that BIRG1 in rice functions as a chloride efflux transporter that is involved in mediating grain size and salt tolerance by controlling chloride homeostasis.
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Affiliation(s)
- Zhijie Ren
- College of Life Sciences, Capital Normal University, and Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Fenglin Bai
- College of Life Sciences, Capital Normal University, and Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Jingwen Xu
- College of Life Sciences, Capital Normal University, and Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Li Wang
- College of Life Sciences, Capital Normal University, and Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Xiaohan Wang
- College of Life Sciences, Capital Normal University, and Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Qian Zhang
- College of Life Sciences, Capital Normal University, and Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Changxin Feng
- College of Life Sciences, Capital Normal University, and Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Qi Niu
- College of Life Sciences, Capital Normal University, and Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Liying Zhang
- College of Life Sciences, Capital Normal University, and Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Jiali Song
- College of Life Sciences, Capital Normal University, and Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Fang Bao
- College of Life Sciences, Capital Normal University, and Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Liangyu Liu
- College of Life Sciences, Capital Normal University, and Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Yikun He
- College of Life Sciences, Capital Normal University, and Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Ligeng Ma
- College of Life Sciences, Capital Normal University, and Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Wang Tian
- School of Advanced Agricultural Sciences, Peking University, Beijing, 100871, China
| | - Congcong Hou
- College of Life Sciences, Capital Normal University, and Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
| | - Legong Li
- College of Life Sciences, Capital Normal University, and Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, Beijing, 100048, China
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Ranjan A, Sinha R, Sharma TR, Pattanayak A, Singh AK. Alleviating aluminum toxicity in plants: Implications of reactive oxygen species signaling and crosstalk with other signaling pathways. PHYSIOLOGIA PLANTARUM 2021; 173:1765-1784. [PMID: 33665830 DOI: 10.1111/ppl.13382] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/11/2021] [Accepted: 02/26/2021] [Indexed: 06/12/2023]
Abstract
Aluminum (Al) toxicity is a major limiting factor for plant growth and productivity in acidic soil. At pH lower than 5.0 (pH < 5.0), the soluble and toxic form of Al (Al3+ ions) enters root cells and inhibits root growth and uptake of water and nutrients. The organic acids malate, citrate, and oxalate are secreted by the roots and chelate Al3+ to form a non-toxic Al-OA complex, which decreases the entry of Al3+ into the root cells. When Al3+ enters, it leads to the production of reactive oxygen species (ROS) in cells, which are toxic and cause damage to biomolecules like lipids, carbohydrates, proteins, and nucleic acids. When ROS levels rise beyond the threshold, plants activate an antioxidant defense system that comprises of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), glutathione S-transferase (GST), ascorbic acid (ASA), phenolics and alkaloids etc., which protect plant cells from oxidative damage by scavenging and neutralizing ROS. Besides, ROS also play an important role in signal transduction and influence many molecular and cellular process like hormone signaling, gene expression, cell wall modification, cell cycle, programed cell death (PCD), and development. In the present review, the mechanisms of Al-induced ROS generation, ROS signaling, and crosstalk with other signaling pathways helping to combat Al toxicity have been summarized, which will help researchers to understand the intricacies of Al-induced plant response at cellular level and plan research for developing Al-toxicity tolerant crops for sustainable agriculture in acid soil-affected regions of the world.
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Affiliation(s)
- Alok Ranjan
- ICAR-Indian Institute of Agricultural Biotechnology, Ranchi, India
| | - Ragini Sinha
- ICAR-Indian Institute of Agricultural Biotechnology, Ranchi, India
| | - Tilak Raj Sharma
- ICAR-Indian Institute of Agricultural Biotechnology, Ranchi, India
| | | | - Anil Kumar Singh
- ICAR-Indian Institute of Agricultural Biotechnology, Ranchi, India
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Pinto VB, Almeida VC, Pereira-Lima ÍA, Vale EM, Araújo WL, Silveira V, Viana JMS. Deciphering the major metabolic pathways associated with aluminum tolerance in popcorn roots using label-free quantitative proteomics. PLANTA 2021; 254:132. [PMID: 34821986 DOI: 10.1007/s00425-021-03786-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 11/10/2021] [Indexed: 06/13/2023]
Abstract
Al responsive proteins are associated with starch, sucrose, and other carbohydrate metabolic pathways. Sucrose synthase is a candidate to Al tolerance. Al responses are regulated at transcriptional and post-transcriptional levels. Aluminum toxicity is one of the important abiotic stresses that affects worldwide crop production. The soluble form of aluminum (Al3+) inhibits root growth by altering water and nutrient uptake, a process that also reduces plant growth and development. Under long-term Al3+ exposure, plants can activate several tolerance mechanisms. To date, no reports of large-scale proteomic data concerning maize responses to this ion have been published. To investigate the post-transcriptional regulation in response to Al toxicity, we performed label-free quantitative proteomics for comparative analysis of two Al-contrasting popcorn inbred lines and an Al-tolerant commercial hybrid during 72 h under Al-stress conditions. A total of 489 differentially accumulated proteins (DAPs) were identified in the Al-sensitive inbred line, 491 in the Al-tolerant inbred line, and 277 in the commercial hybrid. Among them, 120 DAPs were co-expressed in both Al tolerant genotypes. Bioinformatics analysis indicated that starch, sucrose, and other components of carbohydrate metabolism and glycolysis/gluconeogenesis are the biochemical processes regulated in response to Al toxicity. Sucrose synthase accumulation and an increase in sucrose content and starch degradation suggest that these components may enhance popcorn tolerance to Al stress. The accumulation of citrate synthase suggests a key role for this enzyme in the detoxification process in the Al-tolerant inbred line. The integration of transcriptomic and proteomic data indicates that the Al tolerance response presents a complex regulatory network into the transcription and translation dynamics of popcorn root development.
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Affiliation(s)
- Vitor Batista Pinto
- Departamento de Biologia Geral, Universidade Federal de Viçosa (UFV), Viçosa, MG, 36570-900, Brazil.
- Laboratório de Biotecnologia, Centro de Biociências e Biotecnologia (CBB), Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Av. Alberto Lamego, 2000, Campos dos Goytacazes, RJ, 28013-602, Brazil.
- Setor de Genômica e Proteômica. CBB, Unidade de Biologia Integrativa, UENF, Campos dos Goytacazes, RJ, Brazil.
| | - Vinicius Costa Almeida
- Departamento de Biologia Geral, Universidade Federal de Viçosa (UFV), Viçosa, MG, 36570-900, Brazil
| | - Ítalo A Pereira-Lima
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa (UFV), Viçosa, MG, 36570-900, Brazil
| | - Ellen Moura Vale
- Laboratório de Biotecnologia, Centro de Biociências e Biotecnologia (CBB), Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Av. Alberto Lamego, 2000, Campos dos Goytacazes, RJ, 28013-602, Brazil
- Setor de Genômica e Proteômica. CBB, Unidade de Biologia Integrativa, UENF, Campos dos Goytacazes, RJ, Brazil
| | - Wagner L Araújo
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa (UFV), Viçosa, MG, 36570-900, Brazil
| | - Vanildo Silveira
- Laboratório de Biotecnologia, Centro de Biociências e Biotecnologia (CBB), Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Av. Alberto Lamego, 2000, Campos dos Goytacazes, RJ, 28013-602, Brazil
- Setor de Genômica e Proteômica. CBB, Unidade de Biologia Integrativa, UENF, Campos dos Goytacazes, RJ, Brazil
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Uncovering the transcriptional response of popcorn (Zea mays L. var. everta) under long-term aluminum toxicity. Sci Rep 2021; 11:19644. [PMID: 34608228 PMCID: PMC8490451 DOI: 10.1038/s41598-021-99097-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 09/20/2021] [Indexed: 11/21/2022] Open
Abstract
To date, the investigation of genes involved in Al resistance has focused mainly on microarrays and short periods of Al exposure. We investigated genes involved in the global response under Al stress by tracking the expression profile of two inbred popcorn lines with different Al sensitivity during 72 h of Al stress. A total of 1003 differentially expressed genes were identified in the Al-sensitive line, and 1751 were identified in the Al-resistant line, of which 273 were shared in both lines. Genes in the category of “response to abiotic stress” were present in both lines, but there was a higher number in the Al-resistant line. Transcription factors, genes involved in fatty acid biosynthesis, and genes involved in cell wall modifications were also detected. In the Al-resistant line, GST6 was identified as one of the key hub genes by co-expression network analysis, and ABC6 may play a role in the downstream regulation of CASP-like 5. In addition, we suggest a class of SWEET transporters that might be involved in the regulation of vacuolar sugar storage and may serve as mechanisms for Al resistance. The results and conclusions expand our understanding of the complex mechanisms involved in Al toxicity and provide a platform for future functional analyses and genomic studies of Al stress in popcorn.
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Du H, Ryan PR, Liu C, Li H, Hu W, Yan W, Huang Y, He W, Luo B, Zhang X, Gao S, Zhou S, Zhang S. ZmMATE6 from maize encodes a citrate transporter that enhances aluminum tolerance in transgenic Arabidopsis thaliana. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2021; 311:111016. [PMID: 34482919 DOI: 10.1016/j.plantsci.2021.111016] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 07/11/2021] [Accepted: 08/03/2021] [Indexed: 06/13/2023]
Abstract
The yields of cereal crops grown on acidic soils are often reduced by aluminum (Al) toxicity because the prevalence of toxic Al3+ cations increases as pH falls below 5.0. The Al-dependent release of citrate from resistant lines of maize is controlled by ZmMATE1 which encodes a multidrug and toxic compound extrusion (MATE) transporter protein. ZmMATE6 is another member of this family in maize whose expression is also increased by Al treatment. We investigated the function of this gene in more detail to determine whether it also contributes to Al resistance. Quantitative RT-PCR measurements found that ZmMATE6 was expressed in the roots and leaves of Al-resistant and sensitive inbred lines. Treatment with Al induced ZmMATE6 expression in all tissues but several other divalent or trivalent cations tested had no effect on expression. This expression pattern and the induction by Al treatment was confirmed in ZmMATE6 promoter-β-glucuronidase fusion lines. Heterogeneous expression of ZmMATE6 displayed a greater Al-activated release of citrate from the roots and was significantly resistant to Al toxicity than controls. This was associated with reduced accumulation of Al in the root tissues. Our results demonstrated that ZmMATE6 expression is induced by Al and functions as a citrate transporter.
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Affiliation(s)
- Hanmei Du
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest China of Agricultural Department, Ministry of Agriculture, Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, China
| | - Peter R Ryan
- CSIRO Agriculture and Food, GPO Box 1700, Canberra, ACT 2601, Australia
| | - Chan Liu
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest China of Agricultural Department, Ministry of Agriculture, Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, China
| | - Hongjie Li
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest China of Agricultural Department, Ministry of Agriculture, Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, China
| | - Wanpeng Hu
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest China of Agricultural Department, Ministry of Agriculture, Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, China
| | - Weina Yan
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest China of Agricultural Department, Ministry of Agriculture, Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, China
| | - Ying Huang
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest China of Agricultural Department, Ministry of Agriculture, Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, China
| | - Wenzhu He
- Crop Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, 610066, China
| | - Bowen Luo
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest China of Agricultural Department, Ministry of Agriculture, Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, China
| | - Xiao Zhang
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest China of Agricultural Department, Ministry of Agriculture, Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, China
| | - Shibin Gao
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest China of Agricultural Department, Ministry of Agriculture, Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, China
| | - Shufeng Zhou
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest China of Agricultural Department, Ministry of Agriculture, Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, China
| | - Suzhi Zhang
- Key Laboratory of Biology and Genetic Improvement of Maize in Southwest China of Agricultural Department, Ministry of Agriculture, Maize Research Institute, Sichuan Agricultural University, Wenjiang, 611130, China.
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Singh CK, Singh D, Sharma S, Chandra S, Tomar RSS, Kumar A, Upadhyaya KC, Pal M. Mechanistic Association of Quantitative Trait Locus with Malate Secretion in Lentil ( Lens culinaris Medikus) Seedlings under Aluminium Stress. PLANTS 2021; 10:plants10081541. [PMID: 34451586 PMCID: PMC8400473 DOI: 10.3390/plants10081541] [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: 09/16/2020] [Revised: 10/12/2020] [Accepted: 10/20/2020] [Indexed: 12/04/2022]
Abstract
Aluminium (Al) toxicity acts as a major delimiting factor in the productivity of many crops including lentil. To alleviate its effect, plants have evolved with Al exclusion and inclusion mechanisms. The former involves the exudation of organic acid to restrict the entry of Al3+ to the root cells while latter involves detoxification of entered Al3+ by organic acids. Al-induced secretion of organic acids from roots is a well-documented mechanism that chelates and neutralizes Al3+ toxicity. In this study, F6 recombinant inbred lines (RILs) derived from a cross between L-7903 (Al-resistant) and BM-4 (Al-sensitive) were phenotyped to assess variation in secretion levels of malate and was combined with genotypic data obtained from 10 Al-resistance linked simple sequence repeat (SSRs) markers. A major quantitative trait loci (QTL) was mapped for malate (qAlt_ma) secretion with a logarithm of odd (LOD) value of 7.7 and phenotypic variation of 60.2%.Validated SSRs associated with this major QTL will be useful in marker assisted selection programmes for improving Al resistance in lentil.
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Affiliation(s)
- Chandan Kumar Singh
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India; (C.K.S.); (S.S.)
- Amity Institute of Biotechnology, Amity University, Noida 201313, India;
| | - Dharmendra Singh
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India; (C.K.S.); (S.S.)
- Correspondence: (D.S.); (M.P.); Tel.: +91-7011180774 (D.S.); +91-9868783354 (M.P.)
| | - Shristi Sharma
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India; (C.K.S.); (S.S.)
| | - Shivani Chandra
- Amity Institute of Biotechnology, Amity University, Noida 201313, India;
| | - Ram Sewak Singh Tomar
- ICAR-National Institute of Plant Biotechnology, Pusa Campus, New Delhi 110012, India;
| | - Arun Kumar
- National Phytotron Facility, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India;
| | - K. C. Upadhyaya
- School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India;
| | - Madan Pal
- Division of Plant Physiology, Indian Agricultural Research Institute, New Delhi 110012, India
- Correspondence: (D.S.); (M.P.); Tel.: +91-7011180774 (D.S.); +91-9868783354 (M.P.)
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Citric Acid-Mediated Abiotic Stress Tolerance in Plants. Int J Mol Sci 2021; 22:ijms22137235. [PMID: 34281289 PMCID: PMC8268203 DOI: 10.3390/ijms22137235] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 06/26/2021] [Accepted: 06/27/2021] [Indexed: 01/07/2023] Open
Abstract
Several recent studies have shown that citric acid/citrate (CA) can confer abiotic stress tolerance to plants. Exogenous CA application leads to improved growth and yield in crop plants under various abiotic stress conditions. Improved physiological outcomes are associated with higher photosynthetic rates, reduced reactive oxygen species, and better osmoregulation. Application of CA also induces antioxidant defense systems, promotes increased chlorophyll content, and affects secondary metabolism to limit plant growth restrictions under stress. In particular, CA has a major impact on relieving heavy metal stress by promoting precipitation, chelation, and sequestration of metal ions. This review summarizes the mechanisms that mediate CA-regulated changes in plants, primarily CA’s involvement in the control of physiological and molecular processes in plants under abiotic stress conditions. We also review genetic engineering strategies for CA-mediated abiotic stress tolerance. Finally, we propose a model to explain how CA’s position in complex metabolic networks involving the biosynthesis of phytohormones, amino acids, signaling molecules, and other secondary metabolites could explain some of its abiotic stress-ameliorating properties. This review summarizes our current understanding of CA-mediated abiotic stress tolerance and highlights areas where additional research is needed.
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Ribeiro AP, Vinecky F, Duarte KE, Santiago TR, das Chagas Noqueli Casari RA, Hell AF, da Cunha BADB, Martins PK, da Cruz Centeno D, de Oliveira Molinari PA, de Almeida Cançado GM, Magalhães JVD, Kobayashi AK, de Souza WR, Molinari HBC. Enhanced aluminum tolerance in sugarcane: evaluation of SbMATE overexpression and genome-wide identification of ALMTs in Saccharum spp. BMC PLANT BIOLOGY 2021; 21:300. [PMID: 34187360 PMCID: PMC8240408 DOI: 10.1186/s12870-021-02975-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 04/14/2021] [Indexed: 06/01/2023]
Abstract
BACKGROUND A major limiting factor for plant growth is the aluminum (Al) toxicity in acidic soils, especially in tropical regions. The exclusion of Al from the root apex through root exudation of organic acids such as malate and citrate is one of the most ubiquitous tolerance mechanisms in the plant kingdom. Two families of anion channels that confer Al tolerance are well described in the literature, ALMT and MATE family. RESULTS In this study, sugarcane plants constitutively overexpressing the Sorghum bicolor MATE gene (SbMATE) showed improved tolerance to Al when compared to non-transgenic (NT) plants, characterized by sustained root growth and exclusion of aluminum from the root apex based on the result obtained with hematoxylin staining. In addition, genome-wide analysis of the recently released sugarcane genome identified 11 ALMT genes and molecular studies showed potential new targets for aluminum tolerance. CONCLUSIONS Our results indicate that the transgenic plants overexpressing the Sorghum bicolor MATE has an improved tolerance to Al. The expression profile of ALMT genes revels potential candidate genes to be used has an alternative for agricultural expansion in Brazil and other areas with aluminum toxicity in poor and acid soils.
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Affiliation(s)
- Ana Paula Ribeiro
- Genetics and Biotechnology Laboratory, Embrapa Agroenergy, Brasilia, 70770-901, DF, Brazil
| | - Felipe Vinecky
- Genetics and Biotechnology Laboratory, Embrapa Agroenergy, Brasilia, 70770-901, DF, Brazil
| | - Karoline Estefani Duarte
- Genetics and Biotechnology Laboratory, Embrapa Agroenergy, Brasilia, 70770-901, DF, Brazil
- Centre of Natural Sciences and Humanities, Federal University of ABC, São Bernardo do Campo, SP, 09606-045, Brazil
| | - Thaís Ribeiro Santiago
- Genetics and Biotechnology Laboratory, Embrapa Agroenergy, Brasilia, 70770-901, DF, Brazil
- Phytopathology Department, University of Brasília, Brasília, Distrito Federal, 70910-900, Brazil
| | | | - Aline Forgatti Hell
- Centre of Natural Sciences and Humanities, Federal University of ABC, São Bernardo do Campo, SP, 09606-045, Brazil
| | | | - Polyana Kelly Martins
- Genetics and Biotechnology Laboratory, Embrapa Agroenergy, Brasilia, 70770-901, DF, Brazil
| | - Danilo da Cruz Centeno
- Centre of Natural Sciences and Humanities, Federal University of ABC, São Bernardo do Campo, SP, 09606-045, Brazil
| | | | | | | | | | - Wagner Rodrigo de Souza
- Genetics and Biotechnology Laboratory, Embrapa Agroenergy, Brasilia, 70770-901, DF, Brazil.
- Centre of Natural Sciences and Humanities, Federal University of ABC, São Bernardo do Campo, SP, 09606-045, Brazil.
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Ambachew D, Blair MW. Genome Wide Association Mapping of Root Traits in the Andean Genepool of Common Bean ( Phaseolus vulgaris L.) Grown With and Without Aluminum Toxicity. FRONTIERS IN PLANT SCIENCE 2021; 12:628687. [PMID: 34249030 PMCID: PMC8269929 DOI: 10.3389/fpls.2021.628687] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 04/13/2021] [Indexed: 06/13/2023]
Abstract
Common bean is one of the most important grain legumes for human diets but is produced on marginal lands with unfavorable soil conditions; among which Aluminum (Al) toxicity is a serious and widespread problem. Under low pH, stable forms of Al dissolve into the soil solution and as phytotoxic ions inhibit the growth and function of roots through injury to the root apex. This results in a smaller root system that detrimentally effects yield. The goal of this study was to evaluate 227 genotypes from an Andean diversity panel (ADP) of common bean and determine the level of Al toxicity tolerance and candidate genes for this abiotic stress tolerance through root trait analysis and marker association studies. Plants were grown as seedlings in hydroponic tanks at a pH of 4.5 with a treatment of high Al concentration (50 μM) compared to a control (0 μM). The roots were harvested and scanned to determine average root diameter, root volume, root surface area, number of root links, number of root tips, and total root length. Percent reduction or increase was calculated for each trait by comparing treatments. Genome wide association study (GWAS) was conducted by testing phenotypic data against single nucleotide polymorphism (SNP) marker genotyping data for the panel. Principal components and a kinship matrix were included in the mixed linear model to correct for population structure. Analyses of variance indicated the presence of significant difference between genotypes. The heritability of traits ranged from 0.67 to 0.92 in Al-treated and reached similar values in non-treated plants. GWAS revealed significant associations between root traits and genetic markers on chromosomes Pv01, Pv04, Pv05, Pv06, and Pv11 with some SNPs contributing to more than one trait. Candidate genes near these loci were analyzed to explain the detected association and included an Al activated malate transporter gene and a multidrug and toxic compound extrusion gene. This study showed that polygenic inheritance was critical to aluminum toxicity tolerance in common beans roots. Candidate genes found suggested that exudation of malate and citrate as organic acids would be important for Al tolerance. Possible cross-talk between mechanisms of aluminum tolerance and resistance to other abiotic stresses are discussed.
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Cheng L, Liu H, Zhao J, Dong Y, Xu Q, Yu Y. Hormone Orchestrates a Hierarchical Transcriptional Cascade That Regulates Al-Induced De Novo Root Regeneration in Tea Nodal Cutting. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:5858-5870. [PMID: 34018729 DOI: 10.1021/acs.jafc.1c01100] [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: 06/12/2023]
Abstract
The aluminum in acid soils is very rhizotoxic to most plant species, but it is essential for root growth and development in Camellia sinensis. However, the molecular basis of Al-mediated signaling pathways in root regeneration of tea plants is largely unclear. In this study, we profiled the physiological phenotype, transcriptome, and phytohormones in the process using stems treated with Al (0.3 mM) and control (0.02 mM). The anatomical analysis showed that the 0.3 mM Al-treated stem began to develop adventitious root (AR) primordia within 7 days, ARs occurred after 21 days, while the control showed a significant delay. We further found that the expression patterns of many genes involved in the biosynthesis of ZT, ACC, and JA were stimulated by Al on day 3; also, the expression profiles of auxin transporter-related genes were markedly increased under Al during the whole rooting process. Moreover, the expression of these genes was strongly correlated with the accumulation of ZT, ACC, JA, and IAA. CsERFs, CsMYBs, and CsWRKYs transcription factor genes with possible crucial roles in regulating AR regeneration were also uncovered. Our findings suggest that multiple phytohormones and genes related to their biosynthesis form a hierarchical transcriptional cascade during Al-induced de novo root regeneration in tea nodal cuttings.
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Affiliation(s)
- Long Cheng
- College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Huan Liu
- College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Jing Zhao
- College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Yuan Dong
- College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Qingshan Xu
- College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Youben Yu
- College of Horticulture, Northwest A&F University, Yangling, 712100 Shaanxi, China
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Xu J, Zhu J, Liu J, Wang J, Ding Z, Tian H. SIZ1 negatively regulates aluminum resistance by mediating the STOP1-ALMT1 pathway in Arabidopsis. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2021; 63:1147-1160. [PMID: 33710720 DOI: 10.1111/jipb.13091] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 03/09/2021] [Indexed: 05/25/2023]
Abstract
Sensitive to proton rhizotoxicity 1 (STOP1) functions as a crucial regulator of root growth during aluminum (Al) stress. However, how this transcription factor is regulated by Al stress to affect downstream genes expression is not well understood. To explore the underlying mechanisms of the function and regulation of STOP1, we employed a yeast two hybrid screen to identify STOP1-interacting proteins. The SUMO E3 ligase SIZ1, was found to interact with STOP1 and mainly facilitate its SUMO modification at K40 and K212 residues. Simultaneous introduction of K40R and K212R substitutions in STOP1 enhances its transactivation activity to upregulate the expression of aluminum-activated malate transporter 1 (ALMT1) via increasing the association with mediator 16 (MED16) transcriptional co-activator. Loss of function of SIZ1 causes highly increased expression of ALMT1, thus enhancing Al-induced malate exudation and Al tolerance. Also, we found that the protein level of SIZ1 is reduced in response to Al stress. Genetic evidence demonstrates that STOP1/ALMT1 is epistatic to SIZ1 in regulating root growth response to Al stress. This study suggests a mechanism about how the SIZ1-STOP1-ALMT1 signaling module is involved in root growth response to Al stress.
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Affiliation(s)
- Jiameng Xu
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao, 266237, China
| | - Jiayong Zhu
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao, 266237, China
| | - Jiajia Liu
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao, 266237, China
| | - Junxia Wang
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao, 266237, China
| | - Zhaojun Ding
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao, 266237, China
| | - Huiyu Tian
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao, 266237, China
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Huang Y, He G, Tian W, Li D, Meng L, Wu D, He T. Genome-Wide Identification of MATE Gene Family in Potato ( Solanum tuberosum L.) and Expression Analysis in Heavy Metal Stress. Front Genet 2021; 12:650500. [PMID: 34127928 PMCID: PMC8196238 DOI: 10.3389/fgene.2021.650500] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 04/08/2021] [Indexed: 01/16/2023] Open
Abstract
A genome-wide identification and expression analysis of multidrug and toxic compound extrusion (MATE) gene family in potato was carried out to explore the response of MATE proteins to heavy meta stress. In this study, we identified 64 MATE genes from potato genome, which are located on 12 chromosomes, and are divided into I–IV subfamilies based on phylogenetic analysis. According to their order of appearance on the chromosomes, they were named from StMATE1–64. Subcellular location prediction showed that 98% of them are located on the plasma membrane as transporters. Synteny analysis showed that five pairs of collinearity gene pairs belonged to members of subfamily I and subfamily II had two pairs indicating that the duplication is of great significance to the evolution of genes in subfamilies I and II. Gene exon–intron structures and motif composition are more similar in the same subfamily. Every StMATE gene contained at least one cis-acting element associated with regulation of hormone transport. The relative expression levels of eight StMATE genes were significantly upregulated under Cu2+ stress compared with the non-stress condition (0 h). After Cd2+ stress for 24 h, the expression levels of StMATE33 in leaf tissue were significantly increased, indicating its crucial role in the process of Cd2+ stress. Additionally, StMATE18/60/40/33/5 were significantly induced by Cu2+ stress, while StMATE59 (II) was significantly induced by Ni2+ stress. Our study initially explores the biological functions of StMATE genes in the regulation of heavy metal stress, further providing a theoretical basis for studying the subsequent molecular mechanisms in detail.
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Affiliation(s)
- Yun Huang
- College of Agricultural, Guizhou University, Guiyang, China
| | - Guandi He
- Institute of Agro-Bioengineering, Guizhou University, Guiyang, China.,Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region, Ministry of Education, Guizhou University, Guiyang, China.,College of Life Sciences, Guizhou University, Guiyang, China
| | - Weijun Tian
- College of Agricultural, Guizhou University, Guiyang, China
| | - Dandan Li
- College of Agricultural, Guizhou University, Guiyang, China
| | - Lulu Meng
- College of Agricultural, Guizhou University, Guiyang, China
| | - Danxia Wu
- College of Agricultural, Guizhou University, Guiyang, China
| | - Tengbing He
- College of Agricultural, Guizhou University, Guiyang, China.,Institute of New Rural Development, Guizhou University, Guiyang, China
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41
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Szurman-Zubrzycka M, Chwiałkowska K, Niemira M, Kwaśniewski M, Nawrot M, Gajecka M, Larsen PB, Szarejko I. Aluminum or Low pH - Which Is the Bigger Enemy of Barley? Transcriptome Analysis of Barley Root Meristem Under Al and Low pH Stress. Front Genet 2021; 12:675260. [PMID: 34220949 PMCID: PMC8244595 DOI: 10.3389/fgene.2021.675260] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 04/13/2021] [Indexed: 11/13/2022] Open
Abstract
Aluminum (Al) toxicity is considered to be the most harmful abiotic stress in acidic soils that today comprise more than 50% of the world’s arable lands. Barley belongs to a group of crops that are most sensitive to Al in low pH soils. We present the RNA-seq analysis of root meristems of barley seedlings grown in hydroponics at optimal pH (6.0), low pH (4.0), and low pH with Al (10 μM of bioavailable Al3+ ions). Two independent experiments were conducted: with short-term (24 h) and long-term (7 days) Al treatment. In the short-term experiment, more genes were differentially expressed (DEGs) between root meristems grown at pH = 6.0 and pH = 4.0, than between those grown at pH = 4.0 with and without Al treatment. The genes upregulated by low pH were associated mainly with response to oxidative stress, cell wall organization, and iron ion binding. Among genes upregulated by Al, overrepresented were those related to response to stress condition and calcium ion binding. In the long-term experiment, the number of DEGs between hydroponics at pH = 4.0 and 6.0 were lower than in the short-term experiment, which suggests that plants partially adapted to the low pH. Interestingly, 7 days Al treatment caused massive changes in the transcriptome profile. Over 4,000 genes were upregulated and almost 2,000 genes were downregulated by long-term Al stress. These DEGs were related to stress response, cell wall development and metal ion transport. Based on our results we can assume that both, Al3+ ions and low pH are harmful to barley plants. Additionally, we phenotyped the root system of barley seedlings grown in the same hydroponic conditions for 7 days at pH = 6.0, pH = 4.0, and pH = 4.0 with Al. The results correspond to transcriptomic data and show that low pH itself is a stress factor that causes a significant reduction of root growth and the addition of aluminum further increases this reduction. It should be noted that in acidic arable lands, plants are exposed simultaneously to both of these stresses. The presented transcriptome analysis may help to find potential targets for breeding barley plants that are more tolerant to such conditions.
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Affiliation(s)
- Miriam Szurman-Zubrzycka
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Katowice, Poland
| | - Karolina Chwiałkowska
- Centre for Bioinformatics and Data Analysis, Medical University of Bialystok, Bialystok, Poland
| | - Magdalena Niemira
- Clinical Research Centre, Medical University of Bialystok, Bialystok, Poland
| | - Mirosław Kwaśniewski
- Centre for Bioinformatics and Data Analysis, Medical University of Bialystok, Bialystok, Poland
| | - Małgorzata Nawrot
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Katowice, Poland
| | - Monika Gajecka
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Katowice, Poland
| | - Paul B Larsen
- Department of Biochemistry, University of California, Riverside, Riverside, CA, United States
| | - Iwona Szarejko
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Katowice, Poland
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42
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Panchal P, Miller AJ, Giri J. Organic acids: versatile stress-response roles in plants. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:4038-4052. [PMID: 33471895 DOI: 10.1093/jxb/erab019] [Citation(s) in RCA: 72] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 01/19/2021] [Indexed: 05/15/2023]
Abstract
Organic acids (OAs) are central to cellular metabolism. Many plant stress responses involve the exudation of OAs at the root-soil interface, which can improve soil mineral acquisition and toxic metal tolerance. Because of their simple structure, the low-molecular-weight OAs are widely studied. We discuss the conventional roles of OAs, and some newly emerging roles in plant stress tolerance. OAs are more versatile in their role in plant stress tolerance and are more efficient chelating agents than other acids, such as amino acids. Root OA exudation is important in soil carbon sequestration. These functions are key processes in combating climate change and helping with more sustainable food production. We briefly review the mechanisms behind enhanced biosynthesis, secretion, and regulation of these activities under different stresses, and provide an outline of the transgenic approaches targeted towards the enhanced production and secretion of OAs. A recurring theme of OAs in plant biology is their role as 'acids' modifying pH, as 'chelators' binding metals, or as 'carbon sources' for microbes. We argue that these multiple functions are key factors for understanding these molecules' important roles in plant stress biology. Finally, we discuss how the functions of OAs in plant stress responses could be used, and identify the important unanswered questions.
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Affiliation(s)
- Poonam Panchal
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Anthony J Miller
- Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Jitender Giri
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi 110067, India
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43
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Chauhan DK, Yadav V, Vaculík M, Gassmann W, Pike S, Arif N, Singh VP, Deshmukh R, Sahi S, Tripathi DK. Aluminum toxicity and aluminum stress-induced physiological tolerance responses in higher plants. Crit Rev Biotechnol 2021; 41:715-730. [PMID: 33866893 DOI: 10.1080/07388551.2021.1874282] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Aluminum (Al) precipitates in acidic soils having a pH < 5.5, in the form of conjugated organic and inorganic ions. Al-containing minerals solubilized in the soil solution cause several negative impacts in plants when taken up along with other nutrients. Moreover, a micromolar concentration of Al present in the soil is enough to induce several irreversible toxicity symptoms such as the rapid and transient over-generation of reactive oxygen species (ROS) such as superoxide anion (O2•-), hydrogen peroxide (H2O2), and hydroxyl radical (•OH), resulting in oxidative bursts. In addition, significant reductions in water and nutrient uptake occur which imposes severe stress in the plants. However, some plants have developed Al-tolerance by stimulating the secretion of organic acids like citrate, malate, and oxalate, from plant roots. Genes responsible for encoding such organic acids, play a critical role in Al tolerance. Several transporters involved in Al resistance mechanisms are members of the Aluminum-activated Malate Transporter (ALMT), Multidrug and Toxic compound Extrusion (MATE), ATP-Binding Cassette (ABC), Natural resistance-associated macrophage protein (Nramp), and aquaporin gene families. Therefore, in the present review, the discussion of the global extension and probable cause of Al in the environment and mechanisms of Al toxicity in plants are followed by detailed emphasis on tolerance mechanisms. We have also identified and categorized the important transporters that secrete organic acids and outlined their role in Al stress tolerance mechanisms in crop plants. The information provided here will be helpful for efficient exploration of the available knowledge to develop Al tolerant crop varieties.
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Affiliation(s)
- Devendra Kumar Chauhan
- D D Pant Interdisciplinary Research Laboratory, Department of Botany, University of Allahabad, Allahabad, India
| | - Vaishali Yadav
- D D Pant Interdisciplinary Research Laboratory, Department of Botany, University of Allahabad, Allahabad, India
| | - Marek Vaculík
- Department of Plant Physiology, Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, Slovakia.,Institute of Botany, Plant Science and Biodiversity Centre of Slovak Academy of Sciences, Bratislava, Slovakia
| | - Walter Gassmann
- Division of Plant Sciences, Bond Life Sciences Center, and Interdisciplinary Plant Group, University of Missouri, Columbia, MO, USA
| | - Sharon Pike
- Division of Plant Sciences, Bond Life Sciences Center, and Interdisciplinary Plant Group, University of Missouri, Columbia, MO, USA
| | - Namira Arif
- D D Pant Interdisciplinary Research Laboratory, Department of Botany, University of Allahabad, Allahabad, India
| | - Vijay Pratap Singh
- C.M.P. Degree College, A Constituent Post Graduate College of University of Allahabad, Allahabad, India
| | | | - Shivendra Sahi
- University of the Sciences in Philadelphia (USP), Philadelphia, PA, USA
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44
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Claxton DP, Jagessar KL, Mchaourab HS. Principles of Alternating Access in Multidrug and Toxin Extrusion (MATE) Transporters. J Mol Biol 2021; 433:166959. [PMID: 33774036 DOI: 10.1016/j.jmb.2021.166959] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 03/15/2021] [Accepted: 03/18/2021] [Indexed: 12/18/2022]
Abstract
The multidrug and toxin extrusion (MATE) transporters catalyze active efflux of a broad range of chemically- and structurally-diverse compounds including antimicrobials and chemotherapeutics, thus contributing to multidrug resistance in pathogenic bacteria and cancers. Multiple methodological approaches have been taken to investigate the structural basis of energy transduction and substrate translocation in MATE transporters. Crystal structures representing members from all three MATE subfamilies have been interpreted within the context of an alternating access mechanism that postulates occupation of distinct structural intermediates in a conformational cycle powered by electrochemical ion gradients. Here we review the structural biology of MATE transporters, integrating the crystallographic models with biophysical and computational studies to define the molecular determinants that shape the transport energy landscape. This holistic analysis highlights both shared and disparate structural and functional features within the MATE family, which underpin an emerging theme of mechanistic diversity within the framework of a conserved structural scaffold.
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Affiliation(s)
- Derek P Claxton
- Department of Molecular Physiology and Biophysics, Vanderbilt University, 747 Light Hall, 2215 Garland Avenue, Nashville, TN 37232, USA
| | - Kevin L Jagessar
- Department of Molecular Physiology and Biophysics, Vanderbilt University, 747 Light Hall, 2215 Garland Avenue, Nashville, TN 37232, USA
| | - Hassane S Mchaourab
- Department of Molecular Physiology and Biophysics, Vanderbilt University, 747 Light Hall, 2215 Garland Avenue, Nashville, TN 37232, USA.
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45
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Recent Advances in Understanding Mechanisms of Plant Tolerance and Response to Aluminum Toxicity. SUSTAINABILITY 2021. [DOI: 10.3390/su13041782] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Aluminum (Al) toxicity is a major environmental stress that inhibits plant growth and development. There has been impressive progress in recent years that has greatly increased our understanding of the nature of Al toxicity and its mechanisms of tolerance. This review describes the transcription factors (TFs) and plant hormones involved in the adaptation to Al stress. In particular, it discusses strategies to confer plant resistance to Al stress, such as transgenic breeding, as well as small molecules and plant growth-promoting rhizobacteria (PGPRs) to alleviate Al toxicity. This paper provides a theoretical basis for the enhancement of plant production in acidic soils.
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46
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Yadav B, Jogawat A, Lal SK, Lakra N, Mehta S, Shabek N, Narayan OP. Plant mineral transport systems and the potential for crop improvement. PLANTA 2021; 253:45. [PMID: 33483879 DOI: 10.1007/s00425-020-03551-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 12/22/2020] [Indexed: 05/09/2023]
Abstract
Nutrient transporter genes could be a potential candidate for improving crop plants, with enhanced nutrient uptake leading to increased crop yield by providing tolerance against different biotic and abiotic stresses. The world's food supply is nearing a crisis in meeting the demands of an ever-growing global population, and an increase in both yield and nutrient value of major crops is vitally necessary to meet the increased population demand. Nutrients play an important role in plant metabolism as well as growth and development, and nutrient deficiency results in retarded plant growth and leads to reduced crop yield. A variety of cellular processes govern crop plant nutrient absorption from the soil. Among these, nutrient membrane transporters play an important role in the acquisition of nutrients from soil and transport of these nutrients to their target sites. In addition, as excess nutrient delivery has toxic effects on plant growth, these membrane transporters also play a significant role in the removal of excess nutrients in the crop plant. The key function provided by membrane transporters is the ability to supply the crop plant with an adequate level of tolerance against environmental stresses, such as soil acidity, alkalinity, salinity, drought, and pathogen attack. Membrane transporter genes have been utilized for the improvement of crop plants, with enhanced nutrient uptake leading to increased crop yield by providing tolerance against different biotic and abiotic stresses. Further understanding of the basic mechanisms of nutrient transport in crop plants could facilitate the advanced design of engineered plant crops to achieve increased yield and improve nutrient quality through the use of genetic technologies as well as molecular breeding. This review is focused on nutrient toxicity and tolerance mechanisms in crop plants to aid in understanding and addressing the anticipated global food demand.
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Affiliation(s)
- Bindu Yadav
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Abhimanyu Jogawat
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, India
| | - Shambhu Krishan Lal
- ICAR- Indian Institute of Agricultural Biotechnology, Ranchi, Jharkhand, India
- International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Nita Lakra
- Department of Biotechnology, CCS HAU, Hisar, India
| | - Sahil Mehta
- International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Nitzan Shabek
- Department of Plant Biology, University of California, Davis, CA, USA
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47
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Cardoso TB, Pinto RT, Paiva LV. Comprehensive characterization of the ALMT and MATE families on Populus trichocarpa and gene co-expression network analysis of its members during aluminium toxicity and phosphate starvation stresses. 3 Biotech 2020; 10:525. [PMID: 33214973 PMCID: PMC7658292 DOI: 10.1007/s13205-020-02528-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 10/28/2020] [Indexed: 01/07/2023] Open
Abstract
Aluminium (Al) toxicity and phosphate deficit on soils are some of the main problems of modern agriculture and are usually associated. Some plants are able to overcome these stresses through exuding organic acids on the rhizosphere, such as citrate and malate, which are exported by MATE (Multi drug and toxin extrusion) and ALMT (Aluminium-activated malate transporter) transporters, respectively. Despite its co-action on acidic soils, few studies explore these two families' correlation, especially on tree crops, therefore we performed a comprehensive description of MATE and ALMT families on Populus trichocarpa as a model species for arboreal plants. We found 20 and 56 putative members of ALMT and MATE families, respectively. Then, a gene co-expression network analysis was performed using broad transcriptomic data to analyze which members of each family were transcriptionally associated. Four independent networks were generated, one of which is composed of members putatively related to phosphate starvation and aluminum toxicity stresses. The PoptrALMT10 and PoptrMATE54 genes were selected from this network for a deeper analysis, which revealed that in roots under phosphate starvation stress the two genes have independent transcriptional profiles, however, on the aluminum toxicity stress they share some common correlations with other genes. The data presented here help on the description of these gene families, of which some members are potentially involved in plant responses to acid soil-related stresses and its exploration is an important step towards using this knowledge on breeding programs for P. trichocarpa and other tree crops.
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Affiliation(s)
| | - Renan Terassi Pinto
- Chemistry Department, Federal University of Lavras - UFLA, Lavras, Minas Gerais Brazil
| | - Luciano Vilela Paiva
- Chemistry Department, Federal University of Lavras - UFLA, Lavras, Minas Gerais Brazil
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48
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Identification and Expression of the Multidrug and Toxic Compound Extrusion (MATE) Gene Family in Capsicum annuum and Solanum tuberosum. PLANTS 2020; 9:plants9111448. [PMID: 33120967 PMCID: PMC7716203 DOI: 10.3390/plants9111448] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 10/22/2020] [Accepted: 10/26/2020] [Indexed: 12/11/2022]
Abstract
Multidrug and Toxic Compound Extrusion (MATE) proteins are essential transporters that extrude metabolites and participate in plant development and the detoxification of toxins. Little is known about the MATE gene family in the Solanaceae, which includes species that produce a broad range of specialized metabolites. Here, we identified and analyzed the complement of MATE genes in pepper (Capsicum annuum) and potato (Solanum tuberosum). We classified all MATE genes into five groups based on their phylogenetic relationships and their gene and protein structures. Moreover, we discovered that tandem duplication contributed significantly to the expansion of the pepper MATE family, while both tandem and segmental duplications contributed to the expansion of the potato MATE family, indicating that MATEs took distinct evolutionary paths in these two Solanaceous species. Analysis of ω values showed that all potato and pepper MATE genes experienced purifying selection during evolution. In addition, collinearity analysis showed that MATE genes were highly conserved between pepper and potato. Analysis of cis-elements in MATE promoters and MATE expression patterns revealed that MATE proteins likely function in many stages of plant development, especially during fruit ripening, and when exposed to multiple stresses, consistent with the existence of functional differentiation between duplicated MATE genes. Together, our results lay the foundation for further characterization of pepper and potato MATE gene family members.
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49
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Shi Q, Jin J, Liu Y, Zhang Y, Cai Z, Ma Q, Cheng Y, Wen R, Nian H, Lian T. High Aluminum Drives Different Rhizobacterial Communities Between Aluminum-Tolerant and Aluminum-Sensitive Wild Soybean. Front Microbiol 2020; 11:1996. [PMID: 32973720 PMCID: PMC7466775 DOI: 10.3389/fmicb.2020.01996] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 07/28/2020] [Indexed: 11/18/2022] Open
Abstract
Aluminum (Al)-resistant plant cultivars can recruit beneficial microbes to alleviate the stresses. However, the mechanism of how rhizobacterial communities strengthen Al tolerance of wild soybean has not been addressed. The aim of this study was to investigate the bacterial community structure in the rhizosphere of Al-tolerant (BW69) and Al-sensitive (W270) wild soybean germplasm subjected to three Al concentrations. We analyzed the rhizobacterial communities of the two genotypes by high-throughput sequencing of 16S rRNA genes. The results showed that high Al stress recruited different rhizobacterial communities between two genotypes. In total, 49 OTUs, such as OTU15 (Gammaproteobacteria_KF-JG30-C25_norank), OTU23 (Mizugakiibacter), and OTU93 (Alkanibacter), were enriched in the rhizosphere of BW69 at the low and high Al concentrations. Moreover, bacterial community in the rhizosphere of BW69 had a more complex co-occurrence network than did W270 at the high Al concentration. Overall, our findings highlighted that high Al concentration magnified the difference in rhizobacterial community structure between two genotypes. However, the lower modularity of the co-occurrence network in rhizosphere of BW69 than W270 under Al stress may cause the rhizobacterial community to be less resistant and more influenced by disturbance. This study emphasizes the possibility of using rhizobacteria as an improved crop breeding or gene to produce crops that are more resistant to the toxicity of heavy metal.
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Affiliation(s)
- Qihan Shi
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, China
- The Key Laboratory of Plant Molecular Breeding of Guangdong Province, College of Agriculture, South China Agricultural University, Guangzhou, China
| | - Jing Jin
- The Key Laboratory of Plant Molecular Breeding of Guangdong Province, College of Agriculture, South China Agricultural University, Guangzhou, China
| | - Yuantai Liu
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, China
- The Key Laboratory of Plant Molecular Breeding of Guangdong Province, College of Agriculture, South China Agricultural University, Guangzhou, China
| | - Yafeng Zhang
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, China
- The Key Laboratory of Plant Molecular Breeding of Guangdong Province, College of Agriculture, South China Agricultural University, Guangzhou, China
| | - Zhandong Cai
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, China
- The Key Laboratory of Plant Molecular Breeding of Guangdong Province, College of Agriculture, South China Agricultural University, Guangzhou, China
| | - Qibin Ma
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, China
- The Key Laboratory of Plant Molecular Breeding of Guangdong Province, College of Agriculture, South China Agricultural University, Guangzhou, China
| | - Yanbo Cheng
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, China
- The Key Laboratory of Plant Molecular Breeding of Guangdong Province, College of Agriculture, South China Agricultural University, Guangzhou, China
| | - Ronghui Wen
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Guangxi University, Nanning, China
| | - Hai Nian
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, China
- The Key Laboratory of Plant Molecular Breeding of Guangdong Province, College of Agriculture, South China Agricultural University, Guangzhou, China
| | - Tengxiang Lian
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, China
- The Key Laboratory of Plant Molecular Breeding of Guangdong Province, College of Agriculture, South China Agricultural University, Guangzhou, China
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50
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Nakano Y, Kusunoki K, Maruyama H, Enomoto T, Tokizawa M, Iuchi S, Kobayashi M, Kochian LV, Koyama H, Kobayashi Y. A single-population GWAS identified AtMATE expression level polymorphism caused by promoter variants is associated with variation in aluminum tolerance in a local Arabidopsis population. PLANT DIRECT 2020; 4:e00250. [PMID: 32793853 PMCID: PMC7419912 DOI: 10.1002/pld3.250] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 07/10/2020] [Accepted: 07/13/2020] [Indexed: 05/14/2023]
Abstract
Organic acids (OA) are released from roots in response to aluminum (Al), conferring an Al tolerance to plants that is regulated by OA transporters such as ALMT (Al-activated malate transporter) and multi-drug and toxic compound extrusion (MATE). We have previously reported that the expression level polymorphism (ELP) of AtALMT1 is strongly associated with variation in Al tolerance among natural accessions of Arabidopsis. However, although AtMATE is also expressed following Al exposure and contributes to Al tolerance, whether AtMATE contributes to the variation of Al tolerance and the molecular mechanisms of ELP remains unclear. Here, we dissected the natural variation in AtMATE expression level in response to Al at the root using diverse natural accessions of Arabidopsis. Phylogenetic analysis revealed that more than half of accessions belonging to the Central Asia (CA) population show markedly low AtMATE expression levels, while the majority of European populations show high expression levels. The accessions of the CA population with low AtMATE expression also show significantly weakened Al tolerance. A single-population genome-wide association study (GWAS) of AtMATE expression in the CA population identified a retrotransposon insertion in the AtMATE promoter region associated with low gene expression levels. This may affect the transcriptional regulation of AtMATE by disrupting the effect of a cis-regulatory element located upstream of the insertion site, which includes AtSTOP1 (sensitive to proton rhizotoxicity 1) transcription factor-binding sites revealed by chromatin immunoprecipitation-qPCR analysis. Furthermore, the GWAS performed without the accessions expressing low levels of AtMATE, excluding the effect of AtMATE promoter polymorphism, identified several candidate genes potentially associated with AtMATE expression.
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Affiliation(s)
- Yuki Nakano
- Faculty of Applied Biological SciencesGifu UniversityGifuGifuJapan
| | | | - Haruka Maruyama
- Faculty of Applied Biological SciencesGifu UniversityGifuGifuJapan
| | - Takuo Enomoto
- Faculty of Applied Biological SciencesGifu UniversityGifuGifuJapan
| | - Mutsutomo Tokizawa
- Faculty of Applied Biological SciencesGifu UniversityGifuGifuJapan
- Global Institute for Food SecurityUniversity of SaskatchewanSaskatoonSKCanada
| | - Satoshi Iuchi
- Experimental Plant DivisionRIKEN BioResource Research CenterTsukubaIbarakiJapan
| | - Masatomo Kobayashi
- Experimental Plant DivisionRIKEN BioResource Research CenterTsukubaIbarakiJapan
| | - Leon V. Kochian
- Global Institute for Food SecurityUniversity of SaskatchewanSaskatoonSKCanada
| | - Hiroyuki Koyama
- Faculty of Applied Biological SciencesGifu UniversityGifuGifuJapan
| | - Yuriko Kobayashi
- Faculty of Applied Biological SciencesGifu UniversityGifuGifuJapan
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