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Zuo X, Yang C, Yan Y, Huang G, Li R. Systematic analysis of the thioredoxin gene family in Citrus sinensis: identification, phylogenetic analysis, and gene expression patterns. PLANT SIGNALING & BEHAVIOR 2023; 18:2294426. [PMID: 38104280 PMCID: PMC10730155 DOI: 10.1080/15592324.2023.2294426] [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: 11/03/2023] [Accepted: 12/08/2023] [Indexed: 12/19/2023]
Abstract
Thioredoxin (TRX) proteins play essential roles in reactive oxygen species scavenging in plants. We executed an exhaustive analysis of the TRX gene family in Citrus sinensis (CsTRXs), encompassing identification, phylogenetic analysis, detection of conserved motifs and domains, gene structure, cis-acting elements, gene expression trends, and subcellular localization analysis. Our findings established that a total of 22 CsTRXs with thioredoxin domains were identified in the genome of C. sinensis. Phylogenetic analysis indicated that CsTRXs were divided into six subclusters. Conserved motifs analysis of CsTRXs indicated a wide range of conserved motifs. A significant number of cis-acting elements associated with both abiotic and biotic stress responses, inclusive of numerous phytohormone-related elements, were detected in the promoter regions of CsTRXs. The expression levels of CsTRXs including CsTRXf1, CsTRXh1, CsTRXm1, CsTRXo3, CsTRXx2 and CsTRXy1 were observed to be reduced upon pathogen infection. Subcellular localization analysis found that CsTRXf1, CsTRXm1, CsTRXo3, CsTRXx2 and CsTRXy1 were predominantly localized in chloroplasts, whereas CsTRXh1 was distributed indiscriminately. This research yields integral data on CsTRXs, facilitating future efforts to decipher the gene functions of CsTRXs.
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Affiliation(s)
| | | | - Yana Yan
- College of Life Sciences, Gannan Normal University, Ganzhou, China
| | - Guiyan Huang
- College of Life Sciences, Gannan Normal University, Ganzhou, China
| | - Ruimin Li
- College of Life Sciences, Gannan Normal University, Ganzhou, China
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Ya Ma L, Lu Y, Cheng J, Wan Q, Ge J, Wang Y, Li Y, Feng F, Li M, Yu X. Functional characterization of rice (Oryza sativa) thioredoxins for detoxification and degradation of atrazine. Gene 2023:147540. [PMID: 37279861 DOI: 10.1016/j.gene.2023.147540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 05/22/2023] [Accepted: 06/02/2023] [Indexed: 06/08/2023]
Abstract
Thioredoxins (TRXs) are a group of antioxidant enzymes that play a critical role in plant growth and resistance to stress. However, the functional role and mechanism of rice TRXs in response to pesticides (e.g. atrazine, ATZ) stress remain largely unexplored. Here, 24 differentially expressed TRX genes (14 up and 10 down) of ATZ-exposed rice were identified through high-throughput RNA-sequencing analysis. Twenty-four TRX genes were unevenly mapped to 11 chromosomes and some of the genes were validated by quantitative RT-PCR. Bioinformatics analysis revealed that ATZ-responsive TRX genes contain multiple functional cis-elements and conserved domains. To demonstrate the functional role of the genes in ATZ degradation, one representative TRX gene LOC_Os07g08840 was transformed into yeast cells and observed significantly lower ATZ content compared to the control. Using LC-Q-TOF-MS/MS, five metabolites were characterized. One hydroxylation (HA) and two N-dealkylation products (DIA and DEA) were significantly increased in the medium with positive transformants. Our work indicated that TRX-coding genes here were responsible for ATZ degradation, suggesting that thioredoxins could be one of the vital strategies for pesticide degradation and detoxification in crops.
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Affiliation(s)
- Li Ya Ma
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Zhongling Street 50, 210014, Nanjing, China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Zhongling Street 50, 210014, Nanjing, China
| | - Yingfei Lu
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Zhongling Street 50, 210014, Nanjing, China; College of Resources and Environment, Anhui Agricultural University, 230036, Hefei, China
| | - Jinjin Cheng
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Zhongling Street 50, 210014, Nanjing, China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Zhongling Street 50, 210014, Nanjing, China
| | - Qun Wan
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Zhongling Street 50, 210014, Nanjing, China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Zhongling Street 50, 210014, Nanjing, China
| | - Jing Ge
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Zhongling Street 50, 210014, Nanjing, China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Zhongling Street 50, 210014, Nanjing, China
| | - Ya Wang
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Zhongling Street 50, 210014, Nanjing, China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Zhongling Street 50, 210014, Nanjing, China
| | - Yong Li
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Zhongling Street 50, 210014, Nanjing, China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Zhongling Street 50, 210014, Nanjing, China
| | - Fayun Feng
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Zhongling Street 50, 210014, Nanjing, China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Zhongling Street 50, 210014, Nanjing, China
| | - Mei Li
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Zhongling Street 50, 210014, Nanjing, China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Zhongling Street 50, 210014, Nanjing, China
| | - Xiangyang Yu
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Zhongling Street 50, 210014, Nanjing, China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base of Ministry of Science and Technology, Zhongling Street 50, 210014, Nanjing, China.
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3
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Hosseini SS, Ramezanpour SS, Soltanloo H, Seifati SE. RNA-seq analysis and reconstruction of gene networks involved in response to salinity stress in quinoa (cv. Titicaca). Sci Rep 2023; 13:7308. [PMID: 37147414 PMCID: PMC10163252 DOI: 10.1038/s41598-023-34534-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 05/03/2023] [Indexed: 05/07/2023] Open
Abstract
To better understand the mechanisms involved in salinity stress, the adaptability of quinoa cv. Titicaca-a halophytic plant-was investigated at the transcriptome level under saline and non-saline conditions. RNA-sequencing analysis of leaf tissue at the four-leaf stage by Illumina paired-end method was used to compare salt stress treatment (four days after stress at 13.8 dsm-1) and control. Among the obtained 30,846,354 transcripts sequenced, 30,303 differentially expressed genes from the control and stress treatment samples were identified, with 3363 genes expressed ≥ 2 and false discovery rate (FDR) of < 0.001. Six differential expression genes were then selected and qRT-PCR was used to confirm the RNA-seq results. Some of the genes (Include; CML39, CBSX5, TRX1, GRXC9, SnRKγ1 and BAG6) and signaling pathways discussed in this paper not been previously studied in quinoa. Genes with ≥ 2 were used to design the gene interaction network using Cytoscape software, and AgriGO software and STRING database were used for gene ontology. The results led to the identification of 14 key genes involved in salt stress. The most effective hub genes involved in salt tolerance were the heat shock protein gene family. The transcription factors that showed a significant increase in expression under stress conditions mainly belonged to the WRKY, bZIP and MYB families. Ontology analysis of salt stress-responsive genes and hub genes revealed that metabolic pathways, binding, cellular processes and cellular anatomical entity are among the most effective processes involved in salt stress.
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Affiliation(s)
- Sahar Sadat Hosseini
- Department of Plant Breeding and Plant Biotechnology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Golestan, Iran
| | - Seyedeh Sanaz Ramezanpour
- Department of Plant Breeding and Plant Biotechnology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Golestan, Iran.
| | - Hassan Soltanloo
- Department of Arid Land and Desert Management, School of Natural Resources and Desert Studies, Yazd University, Yazd, Iran
| | - Seyed Ebrahim Seifati
- Department of Arid Land and Desert Management, School of Natural Resources and Desert Studies, Yazd University, Yazd, Iran
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Zhou J, Song T, Zhou H, Zhang M, Li N, Xiang J, Zhang X. Genome-wide identification, characterization, evolution, and expression pattern analyses of the typical thioredoxin gene family in wheat ( Triticum aestivum L.). FRONTIERS IN PLANT SCIENCE 2022; 13:1020584. [PMID: 36618641 PMCID: PMC9813791 DOI: 10.3389/fpls.2022.1020584] [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: 08/16/2022] [Accepted: 11/28/2022] [Indexed: 06/17/2023]
Abstract
Typical thioredoxin (TRX) plays an important role in maintaining redox balance in plants. However, the typical TRX genes in wheat still need to be comprehensively and deeply studied. In this research, a total of 48 typical TaTRX genes belonging to eight subtypes were identified via a genome-wide search in wheat, and the gene structures, protein conserved motifs, and protein 3D structures of the same subtype were very similar. Evolutionary analysis showed that there are two pairs of tandem duplication genes and 14 clusters of segmental duplication genes in typical TaTRX family members; TaTRX15, TaTRX36, and TaTRX42 had positive selection compared with the orthologs of their ancestral species; rice and maize have 11 and 13 orthologous typical TRXs with wheat, respectively. Gene Ontology (GO) analysis indicated that typical TaTRXs were involved in maintaining redox homeostasis in wheat cells. Estimation of ROS content, determination of antioxidant enzyme activity, and gene expression analysis in a line overexpressing one typical TaTRX confirmed that TRX plays an important role in maintaining redox balance in wheat. A predictive analysis of cis-acting elements in the promoter region showed that typical TaTRXs were extensively involved in various hormone metabolism and response processes to stress. The results predicted using public databases or verified using RT-qPCR show that typical TaTRXs were able to respond to biotic and abiotic stresses, and their expression in wheat was spatiotemporal. A total of 16 wheat proteins belonging to four different families interacting with typical TaTRXs were predicted. The above comprehensive analysis of typical TaTRX genes can enrich our understanding of this gene family in wheat and provide valuable insights for further gene function research.
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Affiliation(s)
- Jianfei Zhou
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
| | - Tianqi Song
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
| | - Hongwei Zhou
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
| | - Mingfei Zhang
- Academy of Agricultural Sciences/Key Laboratory of Agro-Ecological Protection & Exploitation and Utilization of Animal and Plant Resources, ChiFeng University, Chifeng, Inner Mongolia, China
| | - Nan Li
- Academy of Agricultural Sciences/Key Laboratory of Agro-Ecological Protection & Exploitation and Utilization of Animal and Plant Resources, ChiFeng University, Chifeng, Inner Mongolia, China
| | - Jishan Xiang
- Academy of Agricultural Sciences/Key Laboratory of Agro-Ecological Protection & Exploitation and Utilization of Animal and Plant Resources, ChiFeng University, Chifeng, Inner Mongolia, China
| | - Xiaoke Zhang
- College of Agronomy, Northwest A&F University, Yangling, Shaanxi, China
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Zhang S, Yu Y, Song T, Zhang M, Li N, Yu M, Zhou H, Yang Y, Guo S, Xu C, Tu Y, Xiang J, Zhang X. Genome-wide identification of foxtail millet's TRX family and a functional analysis of SiNRX1 in response to drought and salt stresses in transgenic Arabidopsis. FRONTIERS IN PLANT SCIENCE 2022; 13:946037. [PMID: 36226299 PMCID: PMC9549295 DOI: 10.3389/fpls.2022.946037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 09/02/2022] [Indexed: 06/01/2023]
Abstract
Thioredoxins (TRXs) are small-molecule proteins with redox activity that play very important roles in the growth, development, and stress resistance of plants. Foxtail millet (Setaria italica) gradually became a model crop for stress resistance research because of its advantages such as its resistance to sterility and its small genome. To date, the thioredoxin (TRX) family has been identified in Arabidopsis thaliana, rice and wheat. However, studies of the TRX family in foxtail millet have not been reported, and the biological function of this family remains unclear. In this study, 35 SiTRX genes were identified in the whole genome of foxtail millet through bioinformatic analysis. According to phylogenetic analysis, 35 SiTRXs can be divided into 13 types. The chromosome distribution, gene structure, cis-elements and conserved protein motifs of 35 SiTRXs were characterized. Three nucleoredoxin (NRX) members were further identified by a structural analysis of TRX family members. The expression patterns of foxtail millet's SiNRX members under abiotic stresses showed that they have different stress-response patterns. In addition, subcellular localization revealed that SiNRXs were localized to the nucleus, cytoplasm and membrane. Further studies demonstrated that the overexpression of SiNRX1 enhanced Arabidopsis' tolerance to drought and salt stresses, resulting in a higher survival rate and better growth performance. Moreover, the expression levels of several known stress-related genes were generally higher in overexpressed lines than in the wild-type. Thus, this study provides a general picture of the TRX family in foxtail millet and lay a foundation for further research on the mechanism of the action of TRX proteins on abiotic stresses.
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Affiliation(s)
| | - Yang Yu
- College of Agronomy, Northwest A&F University, Xianyang, China
| | - Tianqi Song
- College of Agronomy, Northwest A&F University, Xianyang, China
| | - Mingfei Zhang
- Academy of Agricultural Sciences, Key Laboratory of Agro-Ecological Protection and Exploitation and Utilization of Animal and Plant Resources in Eastern Inner Mongolia, Chifeng University, Chifeng, China
| | - Nan Li
- Academy of Agricultural Sciences, Key Laboratory of Agro-Ecological Protection and Exploitation and Utilization of Animal and Plant Resources in Eastern Inner Mongolia, Chifeng University, Chifeng, China
| | - Ming Yu
- College of Agronomy, Northwest A&F University, Xianyang, China
| | - Hongwei Zhou
- College of Agronomy, Northwest A&F University, Xianyang, China
| | - Yanning Yang
- College of Agronomy, Northwest A&F University, Xianyang, China
| | - Sihai Guo
- College of Agronomy, Northwest A&F University, Xianyang, China
| | - Chunhong Xu
- College of Agronomy, Northwest A&F University, Xianyang, China
| | - Yongle Tu
- College of Agronomy, Northwest A&F University, Xianyang, China
| | - Jishan Xiang
- Academy of Agricultural Sciences, Key Laboratory of Agro-Ecological Protection and Exploitation and Utilization of Animal and Plant Resources in Eastern Inner Mongolia, Chifeng University, Chifeng, China
| | - Xiaoke Zhang
- College of Agronomy, Northwest A&F University, Xianyang, China
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Optimized Method for the Identification of Candidate Genes and Molecular Maker Development Related to Drought Tolerance in Oil Palm (Elaeis guineensis Jacq.). PLANTS 2022; 11:plants11172317. [PMID: 36079700 PMCID: PMC9460821 DOI: 10.3390/plants11172317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/01/2022] [Accepted: 09/02/2022] [Indexed: 11/17/2022]
Abstract
Drought is a major constraint in oil palm (Elaeis guineensis Jacq.) production. As oil palm breeding takes a long time, molecular markers of genes related to drought tolerance characteristics were developed for effective selection. Two methods of gene identification associated with drought, differential display reverse transcription polymerase chain reaction (DDRT-PCR) and pyrosequencing platform, were conducted before developing the EST-SSR marker. By DDRT-PCR, fourteen out of twenty-four primer combinations yielded the polymorphism in leaf as 77.66% and root as 96.09%, respectively. BLASTN and BLASTX revealed nucleotides from 8 out of 236 different banding similarities to genes associated with drought stress. Five out of eight genes gave a similarity with our pyrosequencing sequencing database. Furthermore, pyrosequencing analysis of two oil palm libraries, drought-tolerant, and drought sensitive, found 117 proteins associated with drought tolerance. Thirteen out of sixty EST-SSR primers could be distinguished in 119 oil palm parents in our breeding program. All of our found genes revealed an ability to develop as a molecular marker for drought tolerance. However, the function of the validated genes on drought response in oil palm must be evaluated.
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Sainz MM, Filippi CV, Eastman G, Sotelo-Silveira J, Borsani O, Sotelo-Silveira M. Analysis of Thioredoxins and Glutaredoxins in Soybean: Evidence of Translational Regulation under Water Restriction. Antioxidants (Basel) 2022; 11:1622. [PMID: 36009341 PMCID: PMC9405309 DOI: 10.3390/antiox11081622] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/10/2022] [Accepted: 08/18/2022] [Indexed: 11/16/2022] Open
Abstract
Soybean (Glycine max (L.) Merr.) establishes symbiosis with rhizobacteria, developing the symbiotic nodule, where the biological nitrogen fixation (BNF) occurs. The redox control is key for guaranteeing the establishment and correct function of the BNF process. Plants have many antioxidative systems involved in ROS homeostasis and signaling, among them a network of thio- and glutaredoxins. Our group is particularly interested in studying the differential response of nodulated soybean plants to water-deficit stress. To shed light on this phenomenon, we set up an RNA-seq experiment (for total and polysome-associated mRNAs) with soybean roots comprising combined treatments including the hydric and the nodulation condition. Moreover, we performed the initial identification and description of the complete repertoire of thioredoxins (Trx) and glutaredoxins (Grx) in soybean. We found that water deficit altered the expression of a greater number of differentially expressed genes (DEGs) than the condition of plant nodulation. Among them, we identified 12 thioredoxin (Trx) and 12 glutaredoxin (Grx) DEGs, which represented a significant fraction of the detected GmTrx and GmGrx in our RNA-seq data. Moreover, we identified an enriched network in which a GmTrx and a GmGrx interacted with each other and associated through several types of interactions with nitrogen metabolism enzymes.
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Affiliation(s)
- María Martha Sainz
- Laboratorio de Bioquímica, Departamento de Biología Vegetal, Facultad de Agronomía, Universidad de la República, Avenida Garzón 780, Montevideo 12900, Uruguay
| | - Carla Valeria Filippi
- Laboratorio de Bioquímica, Departamento de Biología Vegetal, Facultad de Agronomía, Universidad de la República, Avenida Garzón 780, Montevideo 12900, Uruguay
| | - Guillermo Eastman
- Departamento de Genómica, Instituto de Investigaciones Biológicas Clemente Estable, MEC, Av. Italia 3318, Montevideo 11600, Uruguay
- Department of Biology, University of Virginia, 485 McCormick Rd., Charlottesville, VA 22904, USA
| | - José Sotelo-Silveira
- Departamento de Genómica, Instituto de Investigaciones Biológicas Clemente Estable, MEC, Av. Italia 3318, Montevideo 11600, Uruguay
- Departamento de Biología Celular y Molecular, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay
| | - Omar Borsani
- Laboratorio de Bioquímica, Departamento de Biología Vegetal, Facultad de Agronomía, Universidad de la República, Avenida Garzón 780, Montevideo 12900, Uruguay
| | - Mariana Sotelo-Silveira
- Laboratorio de Bioquímica, Departamento de Biología Vegetal, Facultad de Agronomía, Universidad de la República, Avenida Garzón 780, Montevideo 12900, Uruguay
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Bhurta R, Hurali DT, Tyagi S, Sathee L, Adavi B S, Singh D, Mallick N, Chinnusamy V, Vinod, Jha SK. Genome-Wide Identification and Expression Analysis of the Thioredoxin ( Trx) Gene Family Reveals Its Role in Leaf Rust Resistance in Wheat ( Triticum aestivum L.). Front Genet 2022; 13:836030. [PMID: 35401694 PMCID: PMC8990325 DOI: 10.3389/fgene.2022.836030] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 02/28/2022] [Indexed: 01/11/2023] Open
Abstract
Bread wheat (Triticum aestivum L.; Ta) is the staple cereal crop for the majority of the world’s population. Leaf rust disease caused by the obligate fungal pathogen, Puccinia triticina L., is a biotrophic pathogen causing significant economic yield damage. The alteration in the redox homeostasis of the cell caused by various kinds of reactive oxygen species (ROS) and reactive nitrogen species (RNS) in response to pathogenic infections is controlled by redox regulators. Thioredoxin (Trx) is one of the redox regulators with low molecular weight and is thermostable. Through a genome-wide approach, forty-two (42) wheat Trx genes (TaTrx) were identified across the wheat chromosome groups A, B, and D genomes containing 12, 16, and 14 Trx genes, respectively. Based on in silico expression analysis, 15 TaTrx genes were selected and utilized for further experimentation. These 15 genes were clustered into six groups by phylogenetic analysis. MicroRNA (miRNA) target analysis revealed eight different miRNA-targeted TaTrx genes. Protein–protein interaction (PPI) analysis showed TaTrx proteins interact with thioredoxin reductase, peroxiredoxin, and uncharacterized proteins. Expression profiles resulting from quantitative real-time PCR (qRT-PCR) revealed four TaTrx genes (TaTrx11-5A, TaTrx13-5B, TaTrx14-5D, and TaTrx15-3B) were significantly induced in response to leaf rust infection. Localization of ROS and its content estimation and an assay of antioxidant enzymes and expression analysis suggested that Trx have been involved in ROS homeostasis at span 24HAI-72HAI during the leaf rust resistance.
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Affiliation(s)
| | | | - Sandhya Tyagi
- Division of Plant Physiology, ICAR-IARI, New Delhi, India
| | - Lekshmy Sathee
- Division of Plant Physiology, ICAR-IARI, New Delhi, India
| | | | - Dalveer Singh
- Division of Plant Physiology, ICAR-IARI, New Delhi, India
| | | | | | - Vinod
- Division of Genetics, ICAR-IARI, New Delhi, India
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Rana K, Ding Y, Banga SS, Liao H, Zhao S, Yu Y, Qian W. Sclerotinia sclerotiorum Thioredoxin1 (SsTrx1) is required for pathogenicity and oxidative stress tolerance. MOLECULAR PLANT PATHOLOGY 2021; 22:1413-1426. [PMID: 34459563 PMCID: PMC8518572 DOI: 10.1111/mpp.13127] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 07/22/2021] [Accepted: 08/04/2021] [Indexed: 05/03/2023]
Abstract
Sclerotinia sclerotiorum infects host plant tissues by inducing necrosis to source nutrients needed for its establishment. Tissue necrosis results from an enhanced generation of reactive oxygen species (ROS) at the site of infection and apoptosis. Pathogens have evolved ROS scavenging mechanisms to withstand host-induced oxidative damage. However, the genes associated with ROS scavenging pathways are yet to be fully investigated in S. sclerotiorum. We selected the S. sclerotiorum Thioredoxin1 gene (SsTrx1) for our investigations as its expression is significantly induced during S. sclerotiorum infection. RNA interference-induced silencing of SsTrx1 in S. sclerotiorum affected the hyphal growth rate, mycelial morphology, and sclerotial development under in vitro conditions. These outcomes confirmed the involvement of SsTrx1 in promoting pathogenicity and oxidative stress tolerance of S. sclerotiorum. We next constructed an SsTrx1-based host-induced gene silencing (HIGS) vector and mobilized it into Arabidopsis thaliana (HIGS-A) and Nicotiana benthamiana (HIGS-N). The disease resistance analysis revealed significantly reduced pathogenicity and disease progression in the transformed genotypes as compared to the nontransformed and empty vector controls. The relative gene expression of SsTrx1 increased under oxidative stress. Taken together, our results show that normal expression of SsTrx1 is crucial for pathogenicity and oxidative stress tolerance of S. sclerotiorum.
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Affiliation(s)
- Kusum Rana
- College of Agronomy and BiotechnologySouthwest UniversityChongqingChina
- Engineering Research Center of South Upland AgricultureMinistry of EducationChongqingChina
| | - Yijuan Ding
- College of Agronomy and BiotechnologySouthwest UniversityChongqingChina
- Engineering Research Center of South Upland AgricultureMinistry of EducationChongqingChina
| | - Surinder S. Banga
- Department of Plant Breeding and GeneticsPunjab Agricultural UniversityLudhianaIndia
| | - Hongmei Liao
- College of Agronomy and BiotechnologySouthwest UniversityChongqingChina
- Engineering Research Center of South Upland AgricultureMinistry of EducationChongqingChina
| | - Siqi Zhao
- College of Agronomy and BiotechnologySouthwest UniversityChongqingChina
- Engineering Research Center of South Upland AgricultureMinistry of EducationChongqingChina
| | - Yang Yu
- College of Plant ProtectionSouthwest UniversityChongqingChina
| | - Wei Qian
- College of Agronomy and BiotechnologySouthwest UniversityChongqingChina
- Engineering Research Center of South Upland AgricultureMinistry of EducationChongqingChina
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Boubakri H, Chihaoui SA, Najjar E, Gargouri M, Barhoumi F, Jebara M. Genome-wide analysis and expression profiling of H-type Trx family in Phaseolus vulgaris revealed distinctive isoforms associated with symbiotic N 2-fixing performance and abiotic stress response. JOURNAL OF PLANT PHYSIOLOGY 2021; 260:153410. [PMID: 33765508 DOI: 10.1016/j.jplph.2021.153410] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 02/27/2021] [Accepted: 03/16/2021] [Indexed: 06/12/2023]
Abstract
Thioredoxins (Trxs) are implicated in plant development and stress tolerance through redox regulation of target proteins. Trxs of Type h (Trxhs) constitute the largest and the most complicated cluster in the Trx family because of their unknown individual functions. Here, we identified and characterized the Phaseolus vulgaris Trxh family during development, mutualistic interactions and in response to abiotic stress. P. vulgaris (common bean) Trxh gene family (PvTrxh) encompasses 12 isoforms (PvTrxh1-h12), subdivided into 3 groups according to their amino acid sequence features. In silico RNA-seq -based expression analysis showed a differential expression of PvTrxh genes during development. RT-qPCR analysis of PvTrxh genes during nodule organogenesis revealed their highest expression in the nodule primordium (NP). Interestingly, in response to symbiosis, specific PvTrxh isoforms (PvTrxh3 and h5) were found to be highly upregulated compared to mock-inoculated plants. In addition, their expression patterns in the NP positively correlated with the symbiotic N2-fixing efficiency of the Rhizobium strain, as revealed by a number of symbiotic efficiency parameters (ARA, leghemoglobin content, biomass, and total soluble proteins), concomitantly with increased amounts of hydrogen peroxide (H2O2). On the other hand, distinctive PvTrxh isoforms were found to be upregulated in plant leaves, where H2O2 amounts were elevated, in response to both salt and drought constraints. When exogenously applied, H2O2 upregulated specific PvTrxh isoforms in plant leaves and roots. These findings point to a specific, rather than redundant, function for Trxh proteins in common bean beside the association of distinctive Trxh isoforms with symbiosis and abiotic stress response.
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Affiliation(s)
- Hatem Boubakri
- Laboratory of Legumes, Centre of Biotechnology of Borj-Cedria, BP 901, 2050, Hammam-Lif, Tunisia.
| | - Saif-Allah Chihaoui
- Laboratory of Legumes, Centre of Biotechnology of Borj-Cedria, BP 901, 2050, Hammam-Lif, Tunisia
| | - Eya Najjar
- Laboratory of Legumes, Centre of Biotechnology of Borj-Cedria, BP 901, 2050, Hammam-Lif, Tunisia
| | - Mahmoud Gargouri
- Laboratory of Plant Molecular Physiology, Centre of Biotechnology of Borj-Cedria, BP 901, 2050, Hammam-Lif, Tunisia
| | - Fathi Barhoumi
- Laboratory of Legumes, Centre of Biotechnology of Borj-Cedria, BP 901, 2050, Hammam-Lif, Tunisia
| | - Moez Jebara
- Laboratory of Legumes, Centre of Biotechnology of Borj-Cedria, BP 901, 2050, Hammam-Lif, Tunisia
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Ji H, Liu D, Zhang Z, Sun J, Han B, Li Z. A bacterial F-box effector suppresses SAR immunity through mediating the proteasomal degradation of OsTrxh2 in rice. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 104:1054-1072. [PMID: 32881160 DOI: 10.1111/tpj.14980] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 08/06/2020] [Accepted: 08/10/2020] [Indexed: 06/11/2023]
Abstract
Plant bacterial pathogens usually cause diseases by secreting and translocating numerous virulence effectors into host cells and suppressing various host immunity pathways. It has been demonstrated that the extensive ubiquitin systems of host cells are frequently interfered with or hijacked by numerous pathogenic bacteria, through various strategies. Some type-III secretion system (T3SS) effectors of plant pathogens have been demonstrated to impersonate the F-box protein (FBP) component of the SKP1/CUL1/F-box (SCF) E3 ubiquitin system for their own benefit. Although numerous putative eukaryotic-like F-box effectors have been screened for different bacterial pathogens by bioinformatics analyses, the targets of most F-box effectors in host immune systems remain unknown. Here, we show that XopI, a putative F-box effector of African Xoo (Xanthomonas oryzae pv. oryzae) strain BAI3, strongly inhibits the host's OsNPR1-dependent resistance to Xoo. The xopI knockout mutant displays lower virulence in Oryza sativa (rice) than BAI3. Mechanistically, we identify a thioredoxin protein, OsTrxh2, as an XopI-interacting protein in rice. Although OsTrxh2 positively regulates rice immunity by catalyzing the dissociation of OsNPR1 into monomers in rice, the XopI effector serves as an F-box adapter to form an OSK1-XopI-OsTrxh2 interaction complex, and further disrupts OsNPR1-mediated resistance through proteasomal degradation of OsTrxh2. Our results indicate that XopI targets OsTrxh2 and further represses OsNPR1-dependent signaling, thereby subverting systemic acquired resistance (SAR) immunity in rice.
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Affiliation(s)
- Hongtao Ji
- Institute of Integrative Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, 221116, China
| | - Delong Liu
- Institute of Integrative Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, 221116, China
| | - Zhaoxin Zhang
- The State Key Laboratory of Pharmaceutical Biotechnology, School of life Sciences, Nanjing University, Nanjing, 210023, China
| | - Jiawen Sun
- Institute of Integrative Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, 221116, China
| | - Bing Han
- Institute of Plant Protection, Dezhou Academy of Agricultural Sciences, Dezhou, 253015, China
| | - Zongyun Li
- Institute of Integrative Plant Biology, School of Life Sciences, Jiangsu Normal University, Xuzhou, 221116, China
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12
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Elasad M, Ahmad A, Wang H, Ma L, Yu S, Wei H. Overexpression of CDSP32 ( GhTRX134) Cotton Gene Enhances Drought, Salt, and Oxidative Stress Tolerance in Arabidopsis. PLANTS 2020; 9:plants9101388. [PMID: 33086523 PMCID: PMC7650641 DOI: 10.3390/plants9101388] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 10/02/2020] [Accepted: 10/14/2020] [Indexed: 01/09/2023]
Abstract
Upland cotton (Gossypium hirsutum L.) is the main natural fiber crop worldwide and is an essential source of seed oil and biofuel products. Many abiotic stresses, such as drought and salinity, constrain cotton production. Thioredoxins (TRXs) are a group of small ubiquitous proteins that are widely distributed among organisms. TRXs play a crucial role in regulating diverse functions during plant growth and development. In the present study, a novel GhTRX134 gene was characterized and overexpressed in Arabidopsis and silenced in cotton under drought stress. Furthermore, the proline content and enzyme activity levels were measured in transgenic plants and wild-type (Wt) plants under drought and salt stress. The results revealed that the overexpression of GhTRX134 enhanced abiotic stress tolerance. When GhTRX134 was silenced, cotton plants become more sensitive to drought. Taken together, these findings confirmed that the overexpression of GhTRX134 improved drought and salt tolerance in Arabidopsis plants. Therefore, the GhTRX134 gene can be transformed into cotton plants to obtain transgenic lines for more functional details.
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Affiliation(s)
- Mohammed Elasad
- Agricultural Research Corporation, Wad Medani P.O. Box 126, Sudan;
| | - Adeel Ahmad
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, Henan, China; (A.A.); (H.W.); (L.M.); (S.Y.)
| | - Hantao Wang
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, Henan, China; (A.A.); (H.W.); (L.M.); (S.Y.)
| | - Liang Ma
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, Henan, China; (A.A.); (H.W.); (L.M.); (S.Y.)
| | - Shuxun Yu
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, Henan, China; (A.A.); (H.W.); (L.M.); (S.Y.)
| | - Hengling Wei
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, Henan, China; (A.A.); (H.W.); (L.M.); (S.Y.)
- Correspondence:
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13
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Elasad M, Ondati E, Wei H, Wang H, Su J, Fan S, Pang C, Yu S. Functional analysis of nine cotton genes related to leaf senescence in Gossypium hirsutum L. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2018; 24:729-739. [PMID: 30150850 PMCID: PMC6103938 DOI: 10.1007/s12298-018-0561-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 11/14/2017] [Accepted: 05/21/2018] [Indexed: 05/06/2023]
Abstract
Leaf senescence is defined as a deterioration process that continues to the final developmental stage of leaf. This process is usually regulated by both external and internal factors. There are about 5356 senescence associated genes belonging to 44 plant species. A great number of these genes were identified in Arabidopsis. Leaf senescence can be regulated by many transcription factors. In this study, nine gene families were selected according to their expression levels during leaf senescence from our laboratory database. Phylogenetic tree was constructed by MEGA6. Cultivated cotton CCRI-10 seeds were sown in the experimental field of Institute of Cotton Research of CAAS for profiling and leaf development stages analysis. For abiotic (drought and salt) stress and phytohormone (ABA, SA, ET and JA) treatments, CCRI-10 seeds were sown in potting soil at 25 °C in a chamber room. Total RNA was isolated from various samples and the cDNA prepared for qRT-PCR. The comparative CT method was applied to calculate the relative expression levels of genes. For phylogenetic tree, nine cotton genes were divided into two groups, most of homologous genes in previous studies showed roles in phytohormones and abiotic stress. Expression profiling of the nine genes showed different patterns of tissue specific expression. In leaf development stages, majority of cotton genes showed high expression in early and complete senescence stage. Furthermore, most of cotton genes have positive or negative response to phytohormones and abiotic stress. Based on the results of this study, we found four cotton genes CotAD_07559, CotAD_37422, CotAD_21204 and CotAD_54353 as candidate genes for leaves senescence and abiotic stress.
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Affiliation(s)
- Mohammed Elasad
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, 455000 Henan Province China
| | - Evans Ondati
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, 455000 Henan Province China
| | - Hengling Wei
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, 455000 Henan Province China
| | - Hantao Wang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, 455000 Henan Province China
| | - Junji Su
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, 455000 Henan Province China
| | - Shuli Fan
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, 455000 Henan Province China
| | - Chaoyou Pang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, 455000 Henan Province China
| | - Shuxun Yu
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, 455000 Henan Province China
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da Silva MD, de Oliveira Silva RL, Ferreira Neto JRC, Benko-Iseppon AM, Kido EA. Genotype-dependent regulation of drought-responsive genes in tolerant and sensitive sugarcane cultivars. Gene 2017; 633:17-27. [PMID: 28855118 DOI: 10.1016/j.gene.2017.08.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 07/28/2017] [Accepted: 08/23/2017] [Indexed: 12/20/2022]
Abstract
Drought is the most damaging among the major abiotic stresses. Transcriptomic studies allow a global overview of expressed genes, providing the basis for molecular markers development. Here, the HT-SuperSAGE technique allowed the evaluation of four drought-tolerant cultivars and four-sensitive cultivars, after 24h of irrigation suppression. We identified 9831 induced unitags from roots of the tolerant cultivars with different regulations by the -sensitive cultivars after the applied stress. These unitags allowed a proposal of 15 genes, whose expressed profiles were validated by RT-qPCR, evaluating each cultivar independently. These genes covered broad metabolic processes: ethylene stress attenuation (ACCD); root growth (β-EXP8); protein degradation [ubiquitination pathway (E2, 20SPβ4); plant proteases (AP, C13)]; oxidative detoxification (TRX); fatty acid synthesis (ACC); amino acid transport (AAT), and carbohydrate metabolism [glycolysis (PFK, TPI, FBA); TCA cycle (LDP, MDH); pentose phosphate pathway (TKT)]. The expressed profiles showed a genotype-dependent regulation of the target genes. Two drought-tolerant cultivars (SP83-2847; CTC6) presented each one, nine of the induced genes. Among the -sensitive cultivars, CTC13 induced only one, while SP90-1636 induced two genes. These genes should help breeders to identify accessions managing drought stress tolerance responses, showing better ethylene stress attenuation, energy allocation, amino acid transport, and protein homeostasis.
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Affiliation(s)
- Manassés Daniel da Silva
- Federal University of Pernambuco (UFPE), Bioscience Center, Department of Genetics, 50670-420 Recife, PE, Brazil
| | | | | | - Ana Maria Benko-Iseppon
- Federal University of Pernambuco (UFPE), Bioscience Center, Department of Genetics, 50670-420 Recife, PE, Brazil
| | - Ederson Akio Kido
- Federal University of Pernambuco (UFPE), Bioscience Center, Department of Genetics, 50670-420 Recife, PE, Brazil.
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Jangam AP, Pathak RR, Raghuram N. Microarray Analysis of Rice d1 (RGA1) Mutant Reveals the Potential Role of G-Protein Alpha Subunit in Regulating Multiple Abiotic Stresses Such as Drought, Salinity, Heat, and Cold. FRONTIERS IN PLANT SCIENCE 2016; 7:11. [PMID: 26858735 PMCID: PMC4729950 DOI: 10.3389/fpls.2016.00011] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Accepted: 01/07/2016] [Indexed: 05/18/2023]
Abstract
The genome-wide role of heterotrimeric G-proteins in abiotic stress response in rice has not been examined from a functional genomics perspective, despite the availability of mutants and evidences involving individual genes/processes/stresses. Our rice whole transcriptome microarray analysis (GSE 20925 at NCBI GEO) using the G-alpha subunit (RGA1) null mutant (Daikoku 1 or d1) and its corresponding wild type (Oryza sativa Japonica Nipponbare) identified 2270 unique differentially expressed genes (DEGs). Out of them, we mined for all the potentially abiotic stress-responsive genes using Gene Ontology terms, STIFDB2.0 and Rice DB. The first two approaches produced smaller subsets of the 1886 genes found at Rice DB. The GO approach revealed similar regulation of several families of stress-responsive genes in RGA1 mutant. The Genevestigator analysis of the stress-responsive subset of the RGA1-regulated genes from STIFDB revealed cold and drought-responsive clusters. Meta data analysis at Rice DB revealed large stress-response categories such as cold (878 up/810 down), drought (882 up/837 down), heat (913 up/777 down), and salt stress (889 up/841 down). One thousand four hundred ninety-eight of them are common to all the four abiotic stresses, followed by fewer genes common to smaller groups of stresses. The RGA1-regulated genes that uniquely respond to individual stresses include 111 in heat stress, eight each in cold only and drought only stresses, and two genes in salt stress only. The common DEGs (1498) belong to pathways such as the synthesis of polyamine, glycine-betaine, proline, and trehalose. Some of the common DEGs belong to abiotic stress signaling pathways such as calcium-dependent pathway, ABA independent and dependent pathway, and MAP kinase pathway in the RGA1 mutant. Gene ontology of the common stress responsive DEGs revealed 62 unique molecular functions such as transporters, enzyme regulators, transferases, hydrolases, carbon and protein metabolism, binding to nucleotides, carbohydrates, receptors and lipids, morphogenesis, flower development, and cell homeostasis. We also mined 63 miRNAs that bind to the stress responsive transcripts identified in this study, indicating their post-transcriptional regulation. Overall, these results indicate the potentially extensive role of RGA1 in the regulation of multiple abiotic stresses in rice for further validation.
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Tian FX, Zang JL, Wang T, Xie YL, Zhang J, Hu JJ. Aldehyde Dehydrogenase Gene Superfamily in Populus: Organization and Expression Divergence between Paralogous Gene Pairs. PLoS One 2015; 10:e0124669. [PMID: 25909656 PMCID: PMC4409362 DOI: 10.1371/journal.pone.0124669] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 03/16/2015] [Indexed: 11/18/2022] Open
Abstract
Aldehyde dehydrogenases (ALDHs) constitute a superfamily of NAD(P)+-dependent enzymes that catalyze the irreversible oxidation of a wide range of reactive aldehydes to their corresponding nontoxic carboxylic acids. ALDHs have been studied in many organisms from bacteria to mammals; however, no systematic analyses incorporating genome organization, gene structure, expression profiles, and cis-acting elements have been conducted in the model tree species Populus trichocarpa thus far. In this study, a comprehensive analysis of the Populus ALDH gene superfamily was performed. A total of 26 Populus ALDH genes were found to be distributed across 12 chromosomes. Genomic organization analysis indicated that purifying selection may have played a pivotal role in the retention and maintenance of PtALDH gene families. The exon-intron organizations of PtALDHs were highly conserved within the same family, suggesting that the members of the same family also may have conserved functionalities. Microarray data and qRT-PCR analysis indicated that most PtALDHs had distinct tissue-specific expression patterns. The specificity of cis-acting elements in the promoter regions of the PtALDHs and the divergence of expression patterns between nine paralogous PtALDH gene pairs suggested that gene duplications may have freed the duplicate genes from the functional constraints. The expression levels of some ALDHs were up- or down-regulated by various abiotic stresses, implying that the products of these genes may be involved in the adaptation of Populus to abiotic stresses. Overall, the data obtained from our investigation contribute to a better understanding of the complexity of the Populus ALDH gene superfamily and provide insights into the function and evolution of ALDH gene families in vascular plants.
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Affiliation(s)
- Feng-Xia Tian
- College of Life Science and Technology, Nanyang Normal University, Nanyang, Henan, 473061, China
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China
| | - Jian-Lei Zang
- College of Life Science and Technology, Nanyang Normal University, Nanyang, Henan, 473061, China
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China
| | - Tan Wang
- College of Life Science and Technology, Nanyang Normal University, Nanyang, Henan, 473061, China
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China
| | - Yu-Li Xie
- College of Life Science and Technology, Nanyang Normal University, Nanyang, Henan, 473061, China
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China
| | - Jin Zhang
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China
- Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing, 100091, China
- * E-mail: (JZ); (JJH)
| | - Jian-Jun Hu
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China
- * E-mail: (JZ); (JJH)
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17
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Du H, Kim S, Hur YS, Lee MS, Lee SH, Cheon CI. A cytosolic thioredoxin acts as a molecular chaperone for peroxisome matrix proteins as well as antioxidant in peroxisome. Mol Cells 2015; 38:187-94. [PMID: 26013260 PMCID: PMC4332030 DOI: 10.14348/molcells.2015.2255] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 12/17/2014] [Accepted: 12/18/2014] [Indexed: 12/14/2022] Open
Abstract
Thioredoxin (TRX) is a disulfide reductase present ubiquitously in all taxa and plays an important role as a regulator of cellular redox state. Recently, a redox-independent, chaperone function has also been reported for some thioredoxins. We previously identified nodulin-35, the subunit of soybean uricase, as an interacting target of a cytosolic soybean thioredoxin, GmTRX. Here we report the further characterization of the interaction, which turns out to be independent of the disulfide reductase function and results in the co-localization of GmTRX and nodulin-35 in peroxisomes, suggesting a possible function of GmTRX in peroxisomes. In addition, the chaperone function of GmTRX was demonstrated in in vitro molecular chaperone activity assays including the thermal denaturation assay and malate dehydrogenase aggregation assay. Our results demonstrate that the target of GmTRX is not only confined to the nodulin-35, but many other peroxisomal proteins, including catalase (AtCAT), transthyretin-like protein 1 (AtTTL1), and acyl-coenzyme A oxidase 4 (AtACX4), also interact with the GmTRX. Together with an increased uricase activity of nodulin-35 and reduced ROS accumulation observed in the presence of GmTRX in our results, especially under heat shock and oxidative stress conditions, it appears that GmTRX represents a novel thioredoxin that is co-localized to the peroxisomes, possibly providing functional integrity to peroxisomal proteins.
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Affiliation(s)
- Hui Du
- Department of Biological Science, Sookmyung Women’s University, Seoul 140-742, Korea
| | - Sunghan Kim
- Department of Plant Science, Seoul National University, Seoul 151-742, Korea
| | - Yoon-Sun Hur
- Department of Biological Science, Sookmyung Women’s University, Seoul 140-742, Korea
| | - Myung-Sok Lee
- Department of Biological Science, Sookmyung Women’s University, Seoul 140-742, Korea
| | - Suk-Ha Lee
- Department of Plant Science, Seoul National University, Seoul 151-742, Korea
| | - Choong-Ill Cheon
- Department of Biological Science, Sookmyung Women’s University, Seoul 140-742, Korea
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18
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Abiotic and oxidative stress-dependent regulation of expression of the thioredoxin h multigenic family in grape Vitis vinifera. Biologia (Bratisl) 2013. [DOI: 10.2478/s11756-013-0309-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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19
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Li MW, Qi X, Ni M, Lam HM. Silicon era of carbon-based life: application of genomics and bioinformatics in crop stress research. Int J Mol Sci 2013; 14:11444-83. [PMID: 23759993 PMCID: PMC3709742 DOI: 10.3390/ijms140611444] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 05/07/2013] [Accepted: 05/17/2013] [Indexed: 01/25/2023] Open
Abstract
Abiotic and biotic stresses lead to massive reprogramming of different life processes and are the major limiting factors hampering crop productivity. Omics-based research platforms allow for a holistic and comprehensive survey on crop stress responses and hence may bring forth better crop improvement strategies. Since high-throughput approaches generate considerable amounts of data, bioinformatics tools will play an essential role in storing, retrieving, sharing, processing, and analyzing them. Genomic and functional genomic studies in crops still lag far behind similar studies in humans and other animals. In this review, we summarize some useful genomics and bioinformatics resources available to crop scientists. In addition, we also discuss the major challenges and advancements in the "-omics" studies, with an emphasis on their possible impacts on crop stress research and crop improvement.
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Affiliation(s)
- Man-Wah Li
- Center for Soybean Research, State Key Laboratory of Agrobiotechnology and School of Life Sciences, the Chinese University of Hong Kong, Shatin, N.T., Hong Kong; E-Mails: (M.-W.L.); (X.Q.); (M.N.)
| | - Xinpeng Qi
- Center for Soybean Research, State Key Laboratory of Agrobiotechnology and School of Life Sciences, the Chinese University of Hong Kong, Shatin, N.T., Hong Kong; E-Mails: (M.-W.L.); (X.Q.); (M.N.)
| | - Meng Ni
- Center for Soybean Research, State Key Laboratory of Agrobiotechnology and School of Life Sciences, the Chinese University of Hong Kong, Shatin, N.T., Hong Kong; E-Mails: (M.-W.L.); (X.Q.); (M.N.)
| | - Hon-Ming Lam
- Center for Soybean Research, State Key Laboratory of Agrobiotechnology and School of Life Sciences, the Chinese University of Hong Kong, Shatin, N.T., Hong Kong; E-Mails: (M.-W.L.); (X.Q.); (M.N.)
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20
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Genome-wide identification of the class III aminotransferase gene family in rice and expression analysis under abiotic stress. Genes Genomics 2013. [DOI: 10.1007/s13258-013-0108-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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21
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A central role for thiols in plant tolerance to abiotic stress. Int J Mol Sci 2013; 14:7405-32. [PMID: 23549272 PMCID: PMC3645693 DOI: 10.3390/ijms14047405] [Citation(s) in RCA: 282] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 02/28/2013] [Accepted: 03/14/2013] [Indexed: 01/05/2023] Open
Abstract
Abiotic stress poses major problems to agriculture and increasing efforts are being made to understand plant stress response and tolerance mechanisms and to develop new tools that underpin successful agriculture. However, the molecular mechanisms of plant stress tolerance are not fully understood, and the data available is incomplete and sometimes contradictory. Here, we review the significance of protein and non-protein thiol compounds in relation to plant tolerance of abiotic stress. First, the roles of the amino acids cysteine and methionine, are discussed, followed by an extensive discussion of the low-molecular-weight tripeptide, thiol glutathione, which plays a central part in plant stress response and oxidative signalling and of glutathione-related enzymes, including those involved in the biosynthesis of non-protein thiol compounds. Special attention is given to the glutathione redox state, to phytochelatins and to the role of glutathione in the regulation of the cell cycle. The protein thiol section focuses on glutaredoxins and thioredoxins, proteins with oxidoreductase activity, which are involved in protein glutathionylation. The review concludes with a brief overview of and future perspectives for the involvement of plant thiols in abiotic stress tolerance.
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