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Bu Y, Yu Y, Song T, Zhang D, Shi C, Zhang S, Zhang W, Chen D, Xiang J, Zhang X. The transcription factor TabZIP156 acts as a positive regulator in response to drought tolerance in Arabidopsis and wheat (Triticum aestivum L.). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 216:109086. [PMID: 39241627 DOI: 10.1016/j.plaphy.2024.109086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 07/25/2024] [Accepted: 08/31/2024] [Indexed: 09/09/2024]
Abstract
Drought stress strongly restricts the growth, development, and yield of wheat worldwide. Among the various transcription factors (TFs) involved in the wheat drought response, the specific functions of many basic leucine zipper (bZIP) TFs related to drought tolerance are still not well understood. In this study, we focused on the bZIP TF TabZIP156 in wheat. Our analysis showed that TabZIP156 was highly expressed in both roots and leaves, and it responded to drought and abscisic acid (ABA) stress. Through subcellular localization and transactivation assays, we confirmed that TabZIP156 was located to the nucleus and functioned as a transcriptional activator. Overexpression of TabZIP156 in Arabidopsis enhanced drought tolerance, as evidenced by higher germination rate, longer root length, lower water loss rate, reduced ion leakage, increased proline accumulation, decreased levels of H2O2, O2- and MDA, and improved activities of POD, SOD, and CAT enzymes. Additionally, the expression of drought- and antioxidant-related genes were significantly upregulated in TabZIP156 transgenic Arabidopsis under drought stress. However, silencing TabZIP156 in wheat led to decreased proline content, increased accumulation of H2O2, O2- and MDA, reduced activities of antioxidant enzymes, and downregulation of many drought- and antioxidant-related genes under drought stress. Furthermore, the dual-luciferase assay demonstrated that TabZIP156 could activate the expression of TaP5CS, TaDREB1A, and TaPOD by binding to their promoters. Taken together, this study highlights the significant role of TabZIP156 in drought stress and provides valuable insights for its potential application in breeding drought-resistant wheat.
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Affiliation(s)
- Yaning Bu
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Yang Yu
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Tianqi Song
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Dingguo Zhang
- College of Biological Sciences and Technology, Yili Normal University, Yili, 830500, Xinjiang, China.
| | - Caiyin Shi
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Shuangxing Zhang
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China.
| | - Weijun Zhang
- Crop Research Institute, Ningxia Academy of Agriculture and Forestry Science, Yinchuan, 750002, Ningxia, China.
| | - Dongsheng Chen
- Crop Research Institute, Ningxia Academy of Agriculture and Forestry Science, Yinchuan, 750002, Ningxia, China.
| | - Jishan Xiang
- College of Biological Sciences and Technology, Yili Normal University, Yili, 830500, Xinjiang, China.
| | - Xiaoke Zhang
- College of Agronomy, Northwest A&F University, Yangling, 712100, Shaanxi, China.
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Liu X, Sukumaran S, Viitanen E, Naik N, Hassan S, Aronsson H. An Accurate Representation of the Number of bZIP Transcription Factors in the Triticum aestivum (Wheat) Genome and the Regulation of Functional Genes during Salt Stress. Curr Issues Mol Biol 2024; 46:4417-4436. [PMID: 38785536 PMCID: PMC11120151 DOI: 10.3390/cimb46050268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/24/2024] [Accepted: 04/28/2024] [Indexed: 05/25/2024] Open
Abstract
Climate change is dramatically increasing the overall area of saline soils around the world, which is increasing by approximately two million hectares each year. Soil salinity decreases crop yields and, thereby, makes farming less profitable, potentially causing increased poverty and hunger in many areas. A solution to this problem is increasing the salt tolerance of crop plants. Transcription factors (TFs) within crop plants represent a key to understanding salt tolerance, as these proteins play important roles in the regulation of functional genes linked to salt stress. The basic leucine zipper (bZIP) TF has a well-documented role in the regulation of salt tolerance. To better understand how bZIP TFs are linked to salt tolerance, we performed a genome-wide analysis in wheat using the Chinese spring wheat genome, which has been assembled by the International Wheat Genome Sequencing Consortium. We identified 89 additional bZIP gene sequences, which brings the total of bZIP gene sequences in wheat to 237. The majority of these 237 sequences included a single bZIP protein domain; however, different combinations of five other domains also exist. The bZIP proteins are divided into ten subfamily groups. Using an in silico analysis, we identified five bZIP genes (ABF2, ABF4, ABI5, EMBP1, and VIP1) that were involved in regulating salt stress. By scrutinizing the binding properties to the 2000 bp upstream region, we identified putative functional genes under the regulation of these TFs. Expression analyses of plant tissue that had been treated with or without 100 mM NaCl revealed variable patterns between the TFs and functional genes. For example, an increased expression of ABF4 was correlated with an increased expression of the corresponding functional genes in both root and shoot tissues, whereas VIP1 downregulation in root tissues strongly decreased the expression of two functional genes. Identifying strategies to sustain the expression of the functional genes described in this study could enhance wheat's salt tolerance.
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Affiliation(s)
- Xin Liu
- Department of Biological and Environmental Sciences, University of Gothenburg, Box 461, 405 30 Gothenburg, Sweden; (X.L.); (S.S.); (E.V.); (N.N.); (S.H.)
- Triticeae Research Institute, Sichuan Agricultural University, Wenjiang 611130, China
| | - Selvakumar Sukumaran
- Department of Biological and Environmental Sciences, University of Gothenburg, Box 461, 405 30 Gothenburg, Sweden; (X.L.); (S.S.); (E.V.); (N.N.); (S.H.)
| | - Esteri Viitanen
- Department of Biological and Environmental Sciences, University of Gothenburg, Box 461, 405 30 Gothenburg, Sweden; (X.L.); (S.S.); (E.V.); (N.N.); (S.H.)
| | - Nupur Naik
- Department of Biological and Environmental Sciences, University of Gothenburg, Box 461, 405 30 Gothenburg, Sweden; (X.L.); (S.S.); (E.V.); (N.N.); (S.H.)
| | - Sameer Hassan
- Department of Biological and Environmental Sciences, University of Gothenburg, Box 461, 405 30 Gothenburg, Sweden; (X.L.); (S.S.); (E.V.); (N.N.); (S.H.)
| | - Henrik Aronsson
- Department of Biological and Environmental Sciences, University of Gothenburg, Box 461, 405 30 Gothenburg, Sweden; (X.L.); (S.S.); (E.V.); (N.N.); (S.H.)
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Chen M, Cao X, Huang Y, Zou W, Liang X, Yang Y, Wang Y, Wei J, Li H. The bZIP transcription factor MpbZIP9 regulates anthocyanin biosynthesis in Malus 'Pinkspire' fruit. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 342:112038. [PMID: 38367821 DOI: 10.1016/j.plantsci.2024.112038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 02/03/2024] [Accepted: 02/13/2024] [Indexed: 02/19/2024]
Abstract
Malus 'Pinkspire' is regulated by abscisic acid (ABA), which results in a red colour, but the regulatory relationship between ABA and anthocyanin synthesis has not been determined. The key factors affecting the colour change of M. 'Pinkspire' peel were investigated during the periods of significant colour changes during fruit ripening. The results showed that the transcription factor MpbZIP9 associated with ABA was screened by transcriptomic analysis. MpbZIP9 expression was consistent with the trend of structural genes expression for anthocyanin synthesis in the peel during fruit ripening, as well as with changes in the content of ABA, which is a positive regulator. A yeast one-hybrid assay showed that MpbZIP9 can directly bind to the promoter of MpF3'H. Dual luciferase reporter gene assays and GUS staining experiments showed that MpbZIP9 significantly activate MpF3'H expression. In addition, overexpression of the MpbZIP9 significantly enhanced anthocyanin accumulation and the expression of genes involved in anthocyanin synthesis. In contrast, virus-induced silencing of the MpbZIP9 significantly reduced the expression of structural genes involved in anthocyanin synthesis. These results suggest that the MpbZIP9 transcription factor can regulate the synthesis of peel anthocyanin and is a positive regulator that promotes anthocyanin biosynthesis by activating MpF3'H expression.
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Affiliation(s)
- Mingkun Chen
- College of Landscape Architecture and Art, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xiaoyun Cao
- College of Landscape Architecture and Art, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yuanxing Huang
- College of Landscape Architecture and Art, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Wenting Zou
- College of Landscape Architecture and Art, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xiaolong Liang
- College of Landscape Architecture and Art, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yue Yang
- College of Landscape Architecture and Art, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yu Wang
- College of Landscape Architecture and Art, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jun Wei
- College of Landscape Architecture and Art, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Houhua Li
- College of Landscape Architecture and Art, Northwest A&F University, Yangling, Shaanxi 712100, China.
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Tao R, Liu Y, Chen S, Shityakov S. Meta-Analysis of the Effects of Overexpressed bZIP Transcription Factors in Plants under Drought Stress. PLANTS (BASEL, SWITZERLAND) 2024; 13:337. [PMID: 38337871 PMCID: PMC10856963 DOI: 10.3390/plants13030337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 01/13/2024] [Accepted: 01/18/2024] [Indexed: 02/12/2024]
Abstract
The bZIP (basic leucine zipper) transcription factors have been identified as key regulators of plant responses to drought stress, which limits plant growth and yield. Overexpression of bZIP genes has shown potential in enhancing drought tolerance in various plant species. However, the constrained types of individual studies and inconsistencies among experimental approaches has resulted in a lack of statistical significance and limited the extrapolation of bZIP transcription factor overexpression for plant improvement. We conducted a meta-analysis to evaluate ten measured parameters of drought tolerance in bZIP transcription factor-expressing plants as well as moderators affecting the performance of transgenic plants. The results showed that seven parameters, including survival rate as well as the content of regulatory substances (proline accumulation, H2O2 concentration, CAT activity, POD activity, SOD activity and MDA accumulation), were most affected while the impact on physiological status indicators is not significant. In addition, donor/recipient species, treatment medium, duration and methods of simulating drought stress all significantly impacted the degree of drought stress tolerance in plants to some extent among the considered moderators. The findings underscore the potential of bZIP transcription factors as key targets for genetic engineering approaches aimed at improving plant resilience to water scarcity.
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Affiliation(s)
- Ran Tao
- College of Computer and Control Engineering, Northeast Forestry University, Harbin 150040, China;
| | - Yaqiu Liu
- College of Computer and Control Engineering, Northeast Forestry University, Harbin 150040, China;
| | - Su Chen
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin 150040, China;
| | - Sergey Shityakov
- Laboratory of Chemoinformatics, Infochemistry Scientific Center, ITMO University, Saint-Petersburg 191002, Russia;
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Mao H, Jiang C, Tang C, Nie X, Du L, Liu Y, Cheng P, Wu Y, Liu H, Kang Z, Wang X. Wheat adaptation to environmental stresses under climate change: Molecular basis and genetic improvement. MOLECULAR PLANT 2023; 16:1564-1589. [PMID: 37671604 DOI: 10.1016/j.molp.2023.09.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 08/19/2023] [Accepted: 09/01/2023] [Indexed: 09/07/2023]
Abstract
Wheat (Triticum aestivum) is a staple food for about 40% of the world's population. As the global population has grown and living standards improved, high yield and improved nutritional quality have become the main targets for wheat breeding. However, wheat production has been compromised by global warming through the more frequent occurrence of extreme temperature events, which have increased water scarcity, aggravated soil salinization, caused plants to be more vulnerable to diseases, and directly reduced plant fertility and suppressed yield. One promising option to address these challenges is the genetic improvement of wheat for enhanced resistance to environmental stress. Several decades of progress in genomics and genetic engineering has tremendously advanced our understanding of the molecular and genetic mechanisms underlying abiotic and biotic stress responses in wheat. These advances have heralded what might be considered a "golden age" of functional genomics for the genetic improvement of wheat. Here, we summarize the current knowledge on the molecular and genetic basis of wheat resistance to abiotic and biotic stresses, including the QTLs/genes involved, their functional and regulatory mechanisms, and strategies for genetic modification of wheat for improved stress resistance. In addition, we also provide perspectives on some key challenges that need to be addressed.
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Affiliation(s)
- Hude Mao
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Cong Jiang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Chunlei Tang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xiaojun Nie
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Linying Du
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Science, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yuling Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Peng Cheng
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yunfeng Wu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Huiquan Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zhensheng Kang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Xiaojie Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China.
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Zeeshan M, Hu YX, Guo XH, Sun CY, Salam A, Ahmad S, Muhammad I, Nasar J, Jahan MS, Fahad S, Zhou XB. Physiological and transcriptomic study reveal SeNPs-mediated AsIII stress detoxification mechanisms involved modulation of antioxidants, metal transporters, and transcription factors in Glycine max L. (Merr.) roots. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 317:120637. [PMID: 36400144 DOI: 10.1016/j.envpol.2022.120637] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 10/10/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
Physiological changes and genome-wide alteration in gene expression were performed in soybean (Glycine max [L.] Merr.) roots exposed to AsⅢ (25 μmol/L) alone and supplemented with selenium nanoparticles (SeNPs) at the concentration of 10 and 25 μmol/L at the V2 growth stage. Excessive arsenic in the root zone poses a potential threat to soybean yield, particularly to roots, due to the limited translocation of AsIII from root to shoot in the case of soybean. We hypothesized that SeNPs can relieve AsⅢ toxicity to soybean root by reducing the AsⅢ uptake and regulating the internal tolerance mechanism of the plants. Results accomplished that SeNPs had positive impact on soybean dry weight and roots parameters under AsⅢ stress. Then, we further evaluated physiological indexes, whole genome transcriptomic analysis and quantitative real-time PCR to elucidate the underlying mechanism of AsⅢ tolerance under SeNPs supplementation. Under the condition of AsⅢ-stress, SeNPs exposure significantly reduced the electrolyte leakage, O2-•, H2O2 and MDA accumulation while increasing the antioxidants level. The RNA-seq dataset revealed total of 5819 up and 7231 down expressed DEGs across all libraries. The number of exclusively regulated genes were higher under As + SeNP10 (4909) treatment than in the AsⅢ-alone (4830) and As + SeNP25 (3311) treatments. The KEGG and GO analyses revealed that stress responsive DEGs such as glutathione S-transferase, glutathione peroxidase, ascorbate, glutaredoxin, thioredoxin, and phytochelatins synthase are responsible for AsⅢ tolerance under the SeNPs supplementation. Similarly, sulfate transporter, and ABC transporters (ATP-binding cassettes) expression were induced, and aquaporin channels related DEGs expression were reduced under SeNPs application in AsⅢ exposure condition. Furthermore, the expression of molecular chaperones (HSP) and transcription factors (MYB, bZIP, bHLH, and HSFs) were increased in SeNPs treatment groups. These results provide vital information of AsⅢ tolerance mechanism in response to SeNPs in soybean. We suggest that functional characterization of these genes will help us learn more about the SeNPs responsive arsenic tolerance mechanism in soybean.
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Affiliation(s)
- Muhammad Zeeshan
- Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Guangxi Colleges and Universities Key Laboratory of Crop Cultivation and Tillage, College of Agriculture, Guangxi University, Nanning 530004, China; Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, 510642, China; Henry Fok School of Biology and Agriculture, Shaoguan University, Shaoguan 512005, China
| | - Yu Xin Hu
- Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Guangxi Colleges and Universities Key Laboratory of Crop Cultivation and Tillage, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Xiao Hong Guo
- Cash Crops Research Institute, Guangxi Academy of Agricultural Sciences, China
| | - Chen Yu Sun
- Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Guangxi Colleges and Universities Key Laboratory of Crop Cultivation and Tillage, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Abdul Salam
- Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Shakeel Ahmad
- Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Guangxi Colleges and Universities Key Laboratory of Crop Cultivation and Tillage, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Ihsan Muhammad
- Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Guangxi Colleges and Universities Key Laboratory of Crop Cultivation and Tillage, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Jamal Nasar
- Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Guangxi Colleges and Universities Key Laboratory of Crop Cultivation and Tillage, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Mohammad Shah Jahan
- Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Guangxi Colleges and Universities Key Laboratory of Crop Cultivation and Tillage, College of Agriculture, Guangxi University, Nanning 530004, China
| | - Shah Fahad
- Department of Agronomy, Abdul Wali Khan University Mardan, Khyber Pakhtunkhwa 23200, Pakistan
| | - Xun Bo Zhou
- Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Guangxi Colleges and Universities Key Laboratory of Crop Cultivation and Tillage, College of Agriculture, Guangxi University, Nanning 530004, China.
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Ji W, Yu H, Shangguan Y, Cao J, Chen X, Zhao L, Guo Q, Xu P, Shen X, Xu Z. Transcriptome Profiling of Gossypium anomalum Seedlings Reveals Key Regulators and Metabolic Pathways in Response to Drought Stress. PLANTS (BASEL, SWITZERLAND) 2023; 12:312. [PMID: 36679025 PMCID: PMC9865944 DOI: 10.3390/plants12020312] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 12/26/2022] [Accepted: 01/04/2023] [Indexed: 06/17/2023]
Abstract
Drought stress is a key limiting factor for cotton (Gossypium spp.) growth, production, development, and production worldwide. Some wild diploid cotton species are remarkably tolerant of water deficit and constitute an important reservoir for understanding the molecular mechanisms of Gossypium spp. drought tolerance and improving cultivated upland cotton. Here, we utilized RNA-Seq technology to characterize the leaf transcriptomes of a wild African diploid cotton species, Gossypium anomalum, under drought stress. A total of 12,322 differentially expressed genes (DEGs) were identified after mapping valid clean reads to the reference genome of G. anomalum, of which 1243 were commonly differentially expressed at all stages of drought stress. These genes were significantly enriched for molecular functions Gene Ontology terms related to cytoskeleton, hydrolase activity, cellular redox, and binding. Additionally, a substantial proportion of enriched biological process terms concerned cell or subcellular processes, while most in the cellular components category concerned membrane function and photosynthesis. An enrichment analysis against the Kyoto Encyclopedia of Genes and Genomes showed the top significantly enriched pathways to be photosynthesis-antenna proteins, amino sugar and nucleotide sugar metabolism, starch and sucrose metabolism, MAPK signaling pathway, glutathione metabolism, and plant hormone signal transduction. The DEGs also exhibited interestingly significant enrichments for drought stress-induced tandemly repeated genes involved in iron ion binding, oxidoreductase activity, heme binding, and other biological processes. A large number of genes encoding transcription factors, such as MYB, bHLH, ERF, NAC, WRKY, and bZIP, were identified as playing key roles in acclimatizing to drought stress. These results will provide deeper insights into the molecular mechanisms of drought stress adaptation in Gossypium spp.
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Wang B, Li L, Liu M, Peng D, Wei A, Hou B, Lei Y, Li X. TaFDL2-1A confers drought stress tolerance by promoting ABA biosynthesis, ABA responses, and ROS scavenging in transgenic wheat. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 112:722-737. [PMID: 36097863 DOI: 10.1111/tpj.15975] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 09/07/2022] [Accepted: 09/09/2022] [Indexed: 06/15/2023]
Abstract
Plants have developed various protective mechanisms to survive drought stress. Previously, it was shown that a wheat bZIP transcription factor gene TaFD-Like2-1A (TaFDL2-1A) can confer drought tolerance in Arabidopsis. However, the biological functions related to drought stress tolerance of TaFDL2-1A in wheat (Triticum aestivum L.) remain unclear. In the present study, overexpression of TaFDL2-1A in the wheat cultivar Fielder improved drought resistance and conferred abscisic acid (ABA) hypersensitivity. Further analysis showed that overexpression of TaFDL2-1A increased the hypersensitivity of stomata to drought stress and endogenous ABA content under drought conditions. Genetic analysis and transcriptional regulation analysis indicated that TaFDL2-1A binds directly to the promoter fragments of TaRAB21s and TaNCED2s via ACGT core cis-elements, thereby activating their expression, leading to enhanced ABA responses and endogenous ABA accumulation. In addition, our results demonstrate that overexpression of TaFDL2-1A results in higher SOD and GPX activities in wheat under drought conditions by promoting the expression of TaSOD1 and TaGPx1-D, indicating enhanced reactive oxygen species (ROS) scavenging. These results imply that TaFDL2-1A positively regulates ABA biosynthesis, ABA responses, and ROS scavenging to improve drought stress tolerance in transgenic wheat. Our findings improve our understanding of the mechanisms that allow the wheat bZIP transcription factor to improve drought resistance and provide a useful reference gene for breeding programs to enhance drought resistance.
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Affiliation(s)
- Bingxin Wang
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Liqun Li
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Mingliu Liu
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - De Peng
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Aosong Wei
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Beiyuan Hou
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yanhong Lei
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xuejun Li
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
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Jiang M, Wang Z, Ren W, Yan S, Xing N, Zhang Z, Li H, Ma W. Identification of the bZIP gene family and regulation of metabolites under salt stress in isatis indigotica. FRONTIERS IN PLANT SCIENCE 2022; 13:1011616. [PMID: 36267941 PMCID: PMC9576947 DOI: 10.3389/fpls.2022.1011616] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 09/08/2022] [Indexed: 06/16/2023]
Abstract
The bZIP transcription factor family plays important roles in plant growth and development, response to stress, and regulation of secondary metabolite biosynthesis. The identification and molecular function of bZIP gene have been deeply studied in the model plant Arabidopsis thaliana, but it has not been reported in the medicinal plant Isatis indigotica. In this study, 65 IibZIP genes were identified in the genome of I. indigotica, which were distributed on seven chromosomes, were highly conserved, could be classified into 11 subgroups. Transcriptomic and metabolomic data for leaves of I. indigotica exposed to salt stress were analyzed to construct an IibZIP gene co-expression network and metabolite correlation network. Seventeen IibZIP genes were co-expressed with 79 transcription factors, and GO and KEGG enrichment analysis showed that most of these genes were associated with abiotic stress and hormone responses of plants. 17 IibZIP genes regulated 110 metabolites through 92 transcription factor associations. In addition, IibZIP23, IibZIP38 and IibZIP51 were associated with six metabolites including three alkaloids (quinoline alkaloid stylopine, indole alkaloids tabersonine and indole-3-acetic acid), flavonoid myricetin 3-O-galactoside, and two primary metabolites 2-hydroxy-6-aminopurine, 3-dehydroshikimic acid were strongly correlated. This study provides data for identification of the IibZIP gene family and their regulation of metabolites in response to salt stress.
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Affiliation(s)
- Ming Jiang
- Scientific Research Department, Qiqihar Medical University, Qiqihar, China
| | - Zhen Wang
- Pharmacy of College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Weichao Ren
- Pharmacy of College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Song Yan
- Pharmacy of College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Nannan Xing
- Pharmacy of College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Zhanping Zhang
- Pharmacy of College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Hui Li
- Scientific Research Department, Qiqihar Medical University, Qiqihar, China
| | - Wei Ma
- Pharmacy of College, Heilongjiang University of Chinese Medicine, Harbin, China
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Almutairi ZM. In Silico Identification and Characterization of B12D Family Proteins in Viridiplantae. Evol Bioinform Online 2022; 18:11769343221106795. [PMID: 35721582 PMCID: PMC9201304 DOI: 10.1177/11769343221106795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 05/12/2022] [Indexed: 11/16/2022] Open
Abstract
B12D family proteins are transmembrane proteins that contain the B12D
domain involved in membrane trafficking. Plants comprise several
members of the B12D family, but these members’ numbers and specific
functions are not determined. This study aims to identify and
characterize the members of B12D protein family in plants. Phytozome
database was retrieved for B12D proteins from 14 species. The total 66
B12D proteins were analyzed in silico for gene structure, motifs, gene
expression, duplication events, and phylogenetics. In general, B12D
proteins are between 86 and 98 aa in length, have 2 or 3 exons, and
comprise a single transmembrane helix. Motif prediction and multiple
sequence alignment show strong conservation among B12D proteins of 11
flowering plants species. Despite that, the phylogenetic tree revealed
a distinct cluster of 16 B12D proteins that have high conservation
across flowering plants. Motif prediction revealed 41 aa motif
conserved in 58 of the analyzed B12D proteins similar to the bZIP
motif, confirming that in the predicted biological process and
molecular function, B12D proteins are DNA-binding proteins.
Cis-regulatory elements screening in putative
B12D promoters found various responsive
elements for light, abscisic acid, methyl jasmonate, cytokinin,
drought, and heat. Despite that, there is specific elements for cold
stress, cell cycle, circadian, auxin, salicylic acid, and gibberellic
acid in the promoter of a few B12D genes indicating
for functional diversification for B12D family members. The digital
expression shows that B12D genes of Glycine
max have similar expression patterns consistent with
their clustering in the phylogenetic tree. However, the expression of
B12D genes of Hordeum vulgure
appears inconsistent with their clustering in the tree. Despite the
strong conservation of the B12D proteins of Viridiplantae, gene
association analysis, promoter analysis, and digital expression
indicate different roles for the members of the B12D family during
plant developmental stages.
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Affiliation(s)
- Zainab M Almutairi
- Department of Biology, College of Science and Humanities in Al-Kharj, Prince Sattam bin Abdulaziz University, Al-kharj, Saudi Arabia
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11
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Tian X, Jiang Q, Jia Z, Fang Y, Wang Z, Wang J. Identification of TabZIP family members with possible roles in the response to auxin in wheat roots. PHYTOCHEMISTRY 2022; 196:113103. [PMID: 35091213 DOI: 10.1016/j.phytochem.2022.113103] [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: 09/22/2021] [Revised: 01/06/2022] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
Auxin regulates root development and is considered a potential target for improving crop yield. In this study, we identified 22 basic leucine zipper transcription factors (bZIP TFs) that responded to two concentrations (1 and 50 μM) of indole-acetic acid (IAA) during wheat root development by transcriptome analysis. In addition, we identified 176 TabZIP genes from the wheat genome. Phylogenetic classification and gene structure analysis indicated that the 22 auxin-responsive TabZIPs were divided into groups 1 to 9 (except group 3) with different functions. Phenotypic analysis showed that knocking out Arabidopsis AtHY5, which is the homologous gene of TabZIP6D_147 (one of the downregulated auxin-responsive TabZIPs under both 1 and 50 μM IAA that belonged to group 4), resulted in insensitivity to IAA, while the phenotype of TabZIP6D_147/hy5 complementary lines recovered to that of the wild type, suggesting that downregulated TabZIP6D_147 plays a negative role in the auxin signalling pathway. These results revealed that auxin-responsive TabZIP genes may play different roles in root architecture in the response to the two concentrations of auxin.
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Affiliation(s)
- Xinyu Tian
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Qinqin Jiang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Ziyao Jia
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yan Fang
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Zhonghua Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China.
| | - Jun Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China.
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12
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Ye H, Qiao L, Guo H, Guo L, Ren F, Bai J, Wang Y. Genome-Wide Identification of Wheat WRKY Gene Family Reveals That TaWRKY75-A Is Referred to Drought and Salt Resistances. FRONTIERS IN PLANT SCIENCE 2021; 12:663118. [PMID: 34149760 PMCID: PMC8212938 DOI: 10.3389/fpls.2021.663118] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 04/12/2021] [Indexed: 05/14/2023]
Abstract
It is well known that WRKY transcription factors play essential roles in plants' response to diverse stress responses, especially to drought and salt stresses. However, a full comprehensive analysis of this family in wheat is still missing. Here we used in silico analysis and identified 124 WRKY genes, including 294 homeologous copies from a high-quality reference genome of wheat (Triticum aestivum). We also found that the TaWRKY gene family did not undergo gene duplication rather than gene loss during the evolutionary process. The TaWRKY family members displayed different expression profiles under several abiotic stresses, indicating their unique functions in the mediation of particular responses. Furthermore, TaWRKY75-A was highly induced after polyethylene glycol and salt treatments. The ectopic expression of TaWRKY75-A in Arabidopsis enhanced drought and salt tolerance. A comparative transcriptome analysis demonstrated that TaWRKY75-A integrated jasmonic acid biosynthetic pathway and other potential metabolic pathways to increase drought and salt resistances in transgenic Arabidopsis. Our study provides valuable insights into the WRKY family in wheat and will generate a useful genetic resource for improving wheat breeding.
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Affiliation(s)
- Hong Ye
- Division of Biological Science, Nara Institute of Science and Technology, Ikoma, Japan
| | - Linyi Qiao
- College of Agriculture, Shanxi Agricultural University, Taiyuan, Shanxi, China
| | - Haoyu Guo
- College of Life Science, Capital Normal University, Beijing, China
| | - Liping Guo
- College of Horticulture, Northwest A&F University, Yangling, China
| | - Fei Ren
- School of Agricultural Science and Engineering, Shaoguan University, Shaoguan, China
| | - Jianfang Bai
- Beijing Engineering Research Center for Hybrid Wheat, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
- *Correspondence: Jianfang Bai,
| | - Yukun Wang
- Division of Biological Science, Nara Institute of Science and Technology, Ikoma, Japan
- *Correspondence: Jianfang Bai,
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13
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Martin RC, Kronmiller BA, Dombrowski JE. Transcriptome analysis of responses in Brachypodium distachyon overexpressing the BdbZIP26 transcription factor. BMC PLANT BIOLOGY 2020; 20:174. [PMID: 32312226 PMCID: PMC7171782 DOI: 10.1186/s12870-020-02341-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 03/12/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Biotic and abiotic stresses are the major cause of reduced growth, persistence, and yield in agriculture. Over the past decade, RNA-Sequencing and the use of transgenics with altered expression of stress related genes have been utilized to gain a better understanding of the molecular mechanisms leading to salt tolerance in a variety of species. Identification of transcription factors that, when overexpressed in plants, improve multiple stress tolerance may be valuable for crop improvement, but sometimes overexpression leads to deleterious effects during normal plant growth. RESULTS Brachypodium constitutively expressing the BdbZIP26:GFP gene showed reduced stature compared to wild type plants (WT). RNA-Seq analysis comparing WT and bZIP26 transgenic plants revealed 7772 differentially expressed genes (DEGs). Of these DEGs, 987 of the DEGs were differentially expressed in all three transgenic lines. Many of these DEGs are similar to those often observed in response to abiotic and biotic stress, including signaling proteins such as kinases/phosphatases, calcium/calmodulin related proteins, oxidases/reductases, hormone production and signaling, transcription factors, as well as disease responsive proteins. Interestingly, there were many DEGs associated with protein turnover including ubiquitin-related proteins, F-Box and U-box related proteins, membrane proteins, and ribosomal synthesis proteins. Transgenic and control plants were exposed to salinity stress. Many of the DEGs between the WT and transgenic lines under control conditions were also found to be differentially expressed in WT in response to salinity stress. This suggests that the over-expression of the transcription factor is placing the plant in a state of stress, which may contribute to the plants diminished stature. CONCLUSION The constitutive expression of BdbZIP26:GFP had an overall negative effect on plant growth and resulted in stunted plants compared to WT plants under control conditions, and a similar response to WT plants under salt stress conditions. The results of gene expression analysis suggest that the transgenic plants are in a constant state of stress, and that they are trying to allocate resources to survive.
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Affiliation(s)
- Ruth C. Martin
- United States Department of Agriculture, Agricultural Research Service, National Forage Seed Production Research Center, 3450 SW Campus Way, Corvallis, OR 97331 USA
| | - Brent A. Kronmiller
- Center for Genome Research and Biocomputing, Oregon State University, Corvallis, OR 97331 USA
| | - James E. Dombrowski
- United States Department of Agriculture, Agricultural Research Service, National Forage Seed Production Research Center, 3450 SW Campus Way, Corvallis, OR 97331 USA
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14
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Han X, Mao L, Lu W, Wei X, Ying T, Luo Z. Positive Regulation of the Transcription of AchnKCS by a bZIP Transcription Factor in Response to ABA-Stimulated Suberization of Kiwifruit. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:7390-7398. [PMID: 31244202 DOI: 10.1021/acs.jafc.9b01609] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Wound-induced suberization is an essentially protective healing process for wounded fruit to reduce water loss and microbial infection. It has been demonstrated that abscisic acid (ABA) could promote wound suberization, but the molecular mechanism of ABA regulation remains little known. In this study, the transcript level of Achn030011 (designated as AchnKCS), coding a β-ketoacyl-coenzyme A synthase (KCS) involved in suberin biosynthesis, was found to be significantly upregulated by ABA in wounded kiwifruit. A bZIP transcription factor (Achn270881), a possible downstream transcription factor in the ABA signaling pathway, was screened and designated as AchnbZIP12 according to its homology with related Arabidopsis transcription factors. A yeast one-hybrid assay demonstrated that AchnbZIP12 could interact with the AchnKCS promoter. Furthermore, significant trans-activation of AchnbZIP12 on AchnKCS was verified. The transcript level of AchnbZIP12 was also upregulated upon treatment with ABA. These results imply that AchnbZIP12 acts as a positive regulator in ABA-mediated AchnKCS transcription during wound suberization of kiwifruit.
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Affiliation(s)
- Xueyuan Han
- School of Life Sciences , Shaoxing University , Shaoxing , Zhejiang Province 312000 , People's Republic of China
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory of AgroFood Processing, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs , Zhejiang University , Hangzhou 310058 , People's Republic of China
| | - Linchun Mao
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory of AgroFood Processing, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs , Zhejiang University , Hangzhou 310058 , People's Republic of China
- Ningbo Research Institute , Zhejiang University , Ningbo 315100 , People's Republic of China
| | - Wenjing Lu
- Institute of Food Science , Zhejiang Academy of Agricultural Sciences , Hangzhou 310021 , People's Republic of China
| | - Xiaopeng Wei
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory of AgroFood Processing, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs , Zhejiang University , Hangzhou 310058 , People's Republic of China
| | - Tiejin Ying
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory of AgroFood Processing, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs , Zhejiang University , Hangzhou 310058 , People's Republic of China
| | - Zisheng Luo
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory of AgroFood Processing, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs , Zhejiang University , Hangzhou 310058 , People's Republic of China
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15
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Agarwal P, Baranwal VK, Khurana P. Genome-wide Analysis of bZIP Transcription Factors in wheat and Functional Characterization of a TabZIP under Abiotic Stress. Sci Rep 2019; 9:4608. [PMID: 30872683 PMCID: PMC6418127 DOI: 10.1038/s41598-019-40659-7] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 02/20/2019] [Indexed: 11/30/2022] Open
Abstract
The basic leucine zipper (bZIP) represents one of the largest as well as most diverse transcription factor (TFs) families. They are known to play role in both stress as well as in various plant developmental processes. In the present study, a total of 191 bZIP transcription factors have been identified from Triticum aestivum. Expression analysis during various stress conditions, developmental stages, different varieties and gene ontology enrichment analysis suggest their possible roles in abiotic stress as well as in developmental responses. In the current analysis, one of the members named as TabZIP (Traes_7AL_25850F96F.1) was selected for detailed analysis to understand its role under different abiotic stress conditions. Gene expression studies revealed differential expression of TabZIP in various abiotic stress conditions like heat, salinity and dehydration suggesting the possible role of bZIP in various stress mitigation mechanism. Arabidopsis transgenics overexpressing TabZIP showed enhanced tolerance to salinity, drought, heat and oxidative stress. Thus TabZIP (Traes_7AL_25850F96F.1) can serve as a candidate gene for improving heat as well as other abiotic stress tolerance and can be helpful in enhancing the crop productivity under stress conditions.
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Affiliation(s)
- Preeti Agarwal
- Department of Plant Molecular Biology, University of Delhi, South Campus, Benito Juarez Road, New Delhi, 110021, India
| | - Vinay Kumar Baranwal
- Department of Botany, Swami Devanand Post Graduate College, Devashram Marg, Lar, Deoria, 274502, India
| | - Paramjit Khurana
- Department of Plant Molecular Biology, University of Delhi, South Campus, Benito Juarez Road, New Delhi, 110021, India.
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16
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Guérin C, Roche J, Allard V, Ravel C, Mouzeyar S, Bouzidi MF. Genome-wide analysis, expansion and expression of the NAC family under drought and heat stresses in bread wheat (T. aestivum L.). PLoS One 2019; 14:e0213390. [PMID: 30840709 PMCID: PMC6402696 DOI: 10.1371/journal.pone.0213390] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 02/19/2019] [Indexed: 02/01/2023] Open
Abstract
The NAC family is one of the largest plant-specific transcription factor families, and some of its members are known to play major roles in plant development and response to biotic and abiotic stresses. Here, we inventoried 488 NAC members in bread wheat (Triticum aestivum). Using the recent release of the wheat genome (IWGS RefSeq v1.0), we studied duplication events focusing on genomic regions from 4B-4D-5A chromosomes as an example of the family expansion and neofunctionalization of TaNAC members. Differentially expressed TaNAC genes in organs and in response to abiotic stresses were identified using publicly available RNAseq data. Expression profiling of 23 selected candidate TaNAC genes was studied in leaf and grain from two bread wheat genotypes at two developmental stages in field drought conditions and revealed insights into their specific and/or overlapping expression patterns. This study showed that, of the 23 TaNAC genes, seven have a leaf-specific expression and five have a grain-specific expression. In addition, the grain-specific genes profiles in response to drought depend on the genotype. These genes may be considered as potential candidates for further functional validation and could present an interest for crop improvement programs in response to climate change. Globally, the present study provides new insights into evolution, divergence and functional analysis of NAC gene family in bread wheat.
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Affiliation(s)
- Claire Guérin
- UMR 1095 Génétique, Diversité et Ecophysiologie des Céréales, Université Clermont Auvergne, INRA, Clermont–Ferrand, France
| | - Jane Roche
- UMR 1095 Génétique, Diversité et Ecophysiologie des Céréales, Université Clermont Auvergne, INRA, Clermont–Ferrand, France
- * E-mail:
| | - Vincent Allard
- UMR 1095 Génétique, Diversité et Ecophysiologie des Céréales, Université Clermont Auvergne, INRA, Clermont–Ferrand, France
| | - Catherine Ravel
- UMR 1095 Génétique, Diversité et Ecophysiologie des Céréales, Université Clermont Auvergne, INRA, Clermont–Ferrand, France
| | - Said Mouzeyar
- UMR 1095 Génétique, Diversité et Ecophysiologie des Céréales, Université Clermont Auvergne, INRA, Clermont–Ferrand, France
| | - Mohamed Fouad Bouzidi
- UMR 1095 Génétique, Diversité et Ecophysiologie des Céréales, Université Clermont Auvergne, INRA, Clermont–Ferrand, France
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17
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Liu J, Chen X, Wang S, Wang Y, Ouyang Y, Yao Y, Li R, Fu S, Hu X, Guo J. MeABL5, an ABA Insensitive 5-Like Basic Leucine Zipper Transcription Factor, Positively Regulates MeCWINV3 in Cassava ( Manihot esculenta Crantz). FRONTIERS IN PLANT SCIENCE 2019; 10:772. [PMID: 31316528 PMCID: PMC6609874 DOI: 10.3389/fpls.2019.00772] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Accepted: 05/28/2019] [Indexed: 05/20/2023]
Abstract
The basic leucine zipper (bZIP) transcription factor family plays crucial roles in multiple biological processes, especially stress responses. Cassava (Manihot esculenta Crantz) is an important tropical crop with a strong tolerance to environmental stresses such as drought, heat, and low-fertility environments. Currently, limited information is available regarding the functional identification of bZIP transcription factors in response to abiotic stress in cassava. Herein, a gene encoding an ABA Insensitive 5 (ABI5)-like transcription factor, designated as MeABL5, was identified in cassava. Sequence and phylogenetic analysis showed that MeABL5 is a cassava bZIP transcription factor that is not included in the previously identified cassava bZIP family members, belongs to subfamily A, and has high sequence similarity to ABI5-like proteins. Subcellular localization and transactivation assays revealed that MeABL5 was a nuclear-localized protein and possessed transactivation activity. Furthermore, MeABL5 was able to specifically interact with the ABRE cis-element in the promoter of the cassava major cell wall invertase gene, MeCWINV3, in vitro and in vivo. MeABL5 and MeCWINV3 exhibited similar expression patterns in various organs or tissues and under abiotic stress in cassava. The expressions of MeABL5 and MeCWINV3 within cassava plantlets were both induced by exogenous abscisic acid (ABA), gibberellic acid (GA3), methyl jasmonate (MeJA), and heat. Overexpression of MeABL5 increased the activity of the MeCWINV3 gene, and the up-regulated expressions of MeCWINV3 were significantly activated under ABA-, salicylic acid (SA)-, and MeJA-induced conditions. Overall, these results suggest that MeABL5 is a positive regulator of MeCWINV3 and might participate in the robust resistance of cassava in response to abiotic stress. This study also provides a foundation for further research on ABA-mediated and stress-related signaling pathways in cassava.
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Affiliation(s)
- Jiao Liu
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture and Rural Affairs, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Xia Chen
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture and Rural Affairs, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
- Institute of Tropical Agriculture and Forestry, Hainan University, Haikou, China
| | - Shuo Wang
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture and Rural Affairs, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
- Institute of Tropical Agriculture and Forestry, Hainan University, Haikou, China
- Dazhou Mingrenyuan Middle School, Dazhou, China
| | - Yuanyuan Wang
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture and Rural Affairs, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
- Institute of Tropical Agriculture and Forestry, Hainan University, Haikou, China
| | - Yujun Ouyang
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture and Rural Affairs, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
- Institute of Tropical Agriculture and Forestry, Hainan University, Haikou, China
| | - Yuan Yao
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture and Rural Affairs, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Ruimei Li
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture and Rural Affairs, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Shaoping Fu
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture and Rural Affairs, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Xinwen Hu
- Institute of Tropical Agriculture and Forestry, Hainan University, Haikou, China
- *Correspondence: Xinwen Hu,
| | - Jianchun Guo
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Ministry of Agriculture and Rural Affairs, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
- Jianchun Guo,
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18
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Kumar J, Gunapati S, Kianian SF, Singh SP. Comparative analysis of transcriptome in two wheat genotypes with contrasting levels of drought tolerance. PROTOPLASMA 2018; 255:1487-1504. [PMID: 29651660 DOI: 10.1007/s00709-018-1237-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 03/05/2018] [Indexed: 05/19/2023]
Abstract
Drought tolerance is a complex trait that is governed by multiple genes. The study presents differential transcriptome analysis between drought-tolerant (Triticum aestivum Cv. C306) and drought-sensitive (Triticum aestivum Cv. WL711) genotypes, using Affymetrix GeneChip® Wheat Genome Array. Both genotypes exhibited diverse global transcriptional responses under control and drought conditions. Pathway analysis suggested significant induction or repression of genes involved in secondary metabolism, nucleic acid synthesis, protein synthesis, and transport in C306, as compared to WL711. Significant up- and downregulation of transcripts for enzymes, hormone metabolism, and stress response pathways were observed in C306 under drought. The elevated expression of plasma membrane intrinsic protein 1 and downregulation of late embryogenesis abundant in the leaf tissues could play an important role in delayed wilting in C306. The other regulatory genes such as MT, FT, AP2, SKP1, ABA2, ARF6, WRKY6, AOS, and LOX2 are involved in defense response in C306 genotype. Additionally, transcripts with unknown functions were identified as differentially expressed, which could participate in drought responses.
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Affiliation(s)
- Jitendra Kumar
- National Agri-Food Biotechnology Institute, Mohali, India
- USDA-ARS Cereal Disease Laboratory, St. Paul, MN, USA
| | - Samatha Gunapati
- Department of Agronomy and Plant Genetics, University of Minnesota, St. Paul, MN, USA
| | | | - Sudhir P Singh
- National Agri-Food Biotechnology Institute, Mohali, India.
- Center of Innovative and Applied Bioprocessing, Mohali, India.
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19
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Cai W, Yang Y, Wang W, Guo G, Liu W, Bi C. Overexpression of a wheat (Triticum aestivum L.) bZIP transcription factor gene, TabZIP6, decreased the freezing tolerance of transgenic Arabidopsis seedlings by down-regulating the expression of CBFs. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2018; 124:100-111. [PMID: 29351891 DOI: 10.1016/j.plaphy.2018.01.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 01/08/2018] [Accepted: 01/10/2018] [Indexed: 05/07/2023]
Abstract
The basic leucine zipper (bZIP) proteins play important roles against abiotic stress in plants, including cold stress. However, most bZIPs involved in plant freezing tolerance are positive regulators. Only a few bZIPs function negatively in cold stress response. In this study, TabZIP6, a Group C bZIP transcription factor gene from common wheat (Triticum aestivum L.), was cloned and characterized. The transcript of TabZIP6 was strongly induced by cold treatment (4 °C). TabZIP6 is a nuclear-localized protein with transcriptional activation activity. Arabidopsis plants overexpressing TabZIP6 showed decreased tolerance to freezing stress. Microarray as well as quantitative real-time PCR (qRT-PCR) analysis showed that CBFs and some key COR genes, including COR47 and COR15B, were down-regulated by cold treatment in TabZIP6-overexpressing Arabidopsis lines. TabZIP6 was capable of binding to the G-box motif and the CBF1 and CBF3 promoters in yeast cells. A yeast two-hybrid assay revealed that TabZIP6, as well as the other two Group S bZIP proteins involved in cold stress tolerance in wheat, Wlip19 and TaOBF1, can form homodimers by themselves and heterodimers with each other. These results suggest that TabZIP6 may function negatively in the cold stress response by binding to the promoters of CBFs, and thereby decreasing the expression of downstream COR genes in TabZIP6-overexpressing Arabidopsis seedlings.
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Affiliation(s)
- Wangting Cai
- College of Life Science, Hebei Normal University, No.20 Road East. 2nd Ring South, Yuhua District, Shijiazhuang, Hebei 050024, China.
| | - Yaling Yang
- College of Life Science, Hebei Normal University, No.20 Road East. 2nd Ring South, Yuhua District, Shijiazhuang, Hebei 050024, China.
| | - Weiwei Wang
- College of Life Science, Hebei Normal University, No.20 Road East. 2nd Ring South, Yuhua District, Shijiazhuang, Hebei 050024, China.
| | - Guangyan Guo
- College of Life Science, Hebei Normal University, No.20 Road East. 2nd Ring South, Yuhua District, Shijiazhuang, Hebei 050024, China.
| | - Wei Liu
- College of Life Science, Hebei Normal University, No.20 Road East. 2nd Ring South, Yuhua District, Shijiazhuang, Hebei 050024, China.
| | - Caili Bi
- College of Life Science, Hebei Normal University, No.20 Road East. 2nd Ring South, Yuhua District, Shijiazhuang, Hebei 050024, China.
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Zhang L, Zhang L, Xia C, Gao L, Hao C, Zhao G, Jia J, Kong X. A Novel Wheat C-bZIP Gene, TabZIP14-B, Participates in Salt and Freezing Tolerance in Transgenic Plants. FRONTIERS IN PLANT SCIENCE 2017; 8:710. [PMID: 28536588 PMCID: PMC5422549 DOI: 10.3389/fpls.2017.00710] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 04/18/2017] [Indexed: 05/19/2023]
Abstract
The group C-bZIP transcription factors (TFs) are involved in diverse biological processes, such as the regulation of seed storage protein (SSP) production and the responses to pathogen challenge and abiotic stress. However, our knowledge of the abiotic functions of group C-bZIP genes in wheat remains limited. Here, we present the function of a novel TabZIP14-B gene in wheat. This gene belongs to the group C-bZIP TFs and contains six exons and five introns; three haplotypes were identified among accessions of tetraploid and hexaploid wheat. A subcellular localization analysis indicated that TabZIP14-B was targeted to the nucleus of tobacco epidermal cells. A transactivation assay demonstrated that TabZIP14-B showed transcriptional activation ability and was capable of binding the abscisic acid (ABA) responsive element (ABRE) in yeast. RT-qPCR revealed that TabZIP14-B was expressed in the roots, stems, leaves, and young spikes and was up-regulated by exogenous ABA, salt, low-temperature, and polyethylene glycol (PEG) stress treatments. Furthermore, Arabidopsis plants overexpressing TabZIP14-B exhibited enhanced tolerance to salt, freezing stresses and ABA sensitivity. Overexpression of TabZIP14-B resulted in increased expression of the AtRD29A, AtCOR47, AtRD20, AtGSTF6, and AtRAB18 genes and changes in several physiological characteristics. These results suggest that TabZIP14-B could function as a positive regulator in mediating the abiotic stress response.
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Affiliation(s)
- Lina Zhang
- School of Life Science, Northwest Normal UniversityLanzhou, China
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, The National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural SciencesBeijing, China
| | - Lichao Zhang
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, The National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural SciencesBeijing, China
| | - Chuan Xia
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, The National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural SciencesBeijing, China
| | - Lifeng Gao
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, The National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural SciencesBeijing, China
| | - Chenyang Hao
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, The National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural SciencesBeijing, China
| | - Guangyao Zhao
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, The National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural SciencesBeijing, China
| | - Jizeng Jia
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, The National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural SciencesBeijing, China
| | - Xiuying Kong
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, The National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural SciencesBeijing, China
- *Correspondence: Xiuying Kong,
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