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Li S, Zhao Z, Lu Q, Li M, Dai X, Shan M, Liu Z, Bai MY, Xiang F. miR394 modulates brassinosteroid signaling to regulate hypocotyl elongation in Arabidopsis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024. [PMID: 38761364 DOI: 10.1111/tpj.16806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 04/13/2024] [Accepted: 04/30/2024] [Indexed: 05/20/2024]
Abstract
The interplay between microRNAs (miRNAs) and phytohormones allows plants to integrate multiple internal and external signals to optimize their survival of different environmental conditions. Here, we report that miR394 and its target gene LEAF CURLING RESPONSIVENESS (LCR), which are transcriptionally responsive to BR, participate in BR signaling to regulate hypocotyl elongation in Arabidopsis thaliana. Phenotypic analysis of various transgenic and mutant lines revealed that miR394 negatively regulates BR signaling during hypocotyl elongation, whereas LCR positively regulates this process. Genetically, miR394 functions upstream of BRASSINOSTEROID INSENSITIVE2 (BIN2), BRASSINAZOLEs RESISTANT1 (BZR1), and BRI1-EMS-SUPPRESSOR1 (BES1), but interacts with BRASSINOSTEROID INSENSITIVE1 (BRI1) and BRI1 SUPRESSOR PROTEIN (BSU1). RNA-sequencing analysis suggested that miR394 inhibits BR signaling through BIN2, as miR394 regulates a significant number of genes in common with BIN2. Additionally, miR394 increases the accumulation of BIN2 but decreases the accumulation of BZR1 and BES1, which are phosphorylated by BIN2. MiR394 also represses the transcription of PACLOBUTRAZOL RESISTANCE1/5/6 and EXPANSIN8, key genes that regulate hypocotyl elongation and are targets of BZR1/BES1. These findings reveal a new role for a miRNA in BR signaling in Arabidopsis.
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Affiliation(s)
- Shuo Li
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Qingdao, 266237, People's Republic of China
| | - Zhongjuan Zhao
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Qingdao, 266237, People's Republic of China
- Shandong Provincial Key Laboratory of Applied Microbiology, Ecology Institute of Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250013, China
| | - Qing Lu
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Qingdao, 266237, People's Republic of China
| | - Mingru Li
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Qingdao, 266237, People's Republic of China
| | - Xuehuan Dai
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Qingdao, 266237, People's Republic of China
| | - Mengqi Shan
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Qingdao, 266237, People's Republic of China
| | - Zhenhua Liu
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Qingdao, 266237, People's Republic of China
| | - Ming-Yi Bai
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Qingdao, 266237, People's Republic of China
| | - Fengning Xiang
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Qingdao, 266237, People's Republic of China
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Di X, Wang Q, Zhang F, Feng H, Wang X, Cai C. Advances in the Modulation of Potato Tuber Dormancy and Sprouting. Int J Mol Sci 2024; 25:5078. [PMID: 38791120 PMCID: PMC11121589 DOI: 10.3390/ijms25105078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/02/2024] [Accepted: 05/04/2024] [Indexed: 05/26/2024] Open
Abstract
The post-harvest phase of potato tuber dormancy and sprouting are essential in determining the economic value. The intricate transition from dormancy to active growth is influenced by multiple factors, including environmental factors, carbohydrate metabolism, and hormonal regulation. Well-established environmental factors such as temperature, humidity, and light play pivotal roles in these processes. However, recent research has expanded our understanding to encompass other novel influences such as magnetic fields, cold plasma treatment, and UV-C irradiation. Hormones like abscisic acid (ABA), gibberellic acid (GA), cytokinins (CK), auxin, and ethylene (ETH) act as crucial messengers, while brassinosteroids (BRs) have emerged as key modulators of potato tuber sprouting. In addition, jasmonates (JAs), strigolactones (SLs), and salicylic acid (SA) also regulate potato dormancy and sprouting. This review article delves into the intricate study of potato dormancy and sprouting, emphasizing the impact of environmental conditions, carbohydrate metabolism, and hormonal regulation. It explores how various environmental factors affect dormancy and sprouting processes. Additionally, it highlights the role of carbohydrates in potato tuber sprouting and the intricate hormonal interplay, particularly the role of BRs. This review underscores the complexity of these interactions and their importance in optimizing potato dormancy and sprouting for agricultural practices.
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Affiliation(s)
- Xueni Di
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Qiang Wang
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Feng Zhang
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Haojie Feng
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Xiyao Wang
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Chengcheng Cai
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
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Nishanth MJ. Transcriptome meta-analysis-based identification of hub transcription factors and RNA-binding proteins potentially orchestrating gene regulatory cascades and crosstalk in response to abiotic stresses in Arabidopsis thaliana. J Appl Genet 2024; 65:255-269. [PMID: 38337133 DOI: 10.1007/s13353-024-00837-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/19/2024] [Accepted: 01/28/2024] [Indexed: 02/12/2024]
Abstract
Deteriorating climatic conditions and increasing human population necessitate the development of robust plant varieties resistant to harsh environments. Manipulation of regulatory proteins such as transcription factors (TFs) and RNA-binding proteins (RBPs) would be a beneficial strategy in this regard. Further, understanding the complex interconnections between different classes of regulatory molecules would be essential for the identification of candidate genes/proteins for trait improvement. Most studies to date have analysed the roles of TFs or RBPs individually, in conferring stress resilience. However, it would be important to identify dominant/upstream TFs and RBPs inducing widespread transcriptomic alterations through other regulators (i.e., other TFs/RBPs targeted by the upstream regulators). To this end, the present study employed a transcriptome meta-analysis and computational approaches to obtain a comprehensive overview of regulatory interactions. This work identified dominant TFs and RBPs potentially influencing stress-mediated differential expression of other regulators, which could in turn influence gene expression, and consequently, physiological responses. Twenty transcriptomic studies [related to (i) UV radiation, (ii) wounding, (iii) salinity, (iv) cold, and (v) drought stresses in Arabidopsis thaliana] were analysed for differential gene expression, followed by the identification of differentially expressed TFs and RBPs. Subsequently, other TFs and RBPs which could be influencing these regulators were identified, and their interaction networks and hub nodes were analysed. As a result, an interacting module of Basic Leucine Zipper (bZIP) family TFs as well as Heterogeneous nuclear ribonucleoproteins (hnRNP) and Glycine-rich protein (GRP) family RBPs (among other TFs and RBPs) were shown to potentially influence the stress-induced differential expression of other TFs and RBPs under all the considered stress conditions. Some of the identified hub TFs and RBPs are known to be of major importance in orchestrating stress-induced transcriptomic changes influencing a variety of physiological processes from seed germination to senescence. This study highlighted the gene/protein candidates that could be considered for multiplexed genetic manipulation - a promising approach to develop robust, multi-stress-resilient plant varieties.
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Affiliation(s)
- M J Nishanth
- Deptartment of Biotechnology, School of Life Sciences, St Joseph's University, Bengaluru, India, 560027.
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Yang F, Zhao LL, Song LQ, Han Y, You CX, An JP. Apple E3 ligase MdPUB23 mediates ubiquitin-dependent degradation of MdABI5 to delay ABA-triggered leaf senescence. HORTICULTURE RESEARCH 2024; 11:uhae029. [PMID: 38585016 PMCID: PMC10995623 DOI: 10.1093/hr/uhae029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 01/24/2024] [Indexed: 04/09/2024]
Abstract
ABSCISIC ACID-INSENSITIVE5 (ABI5) is a core regulatory factor that mediates the ABA signaling response and leaf senescence. However, the molecular mechanism underlying the synergistic regulation of leaf senescence by ABI5 with interacting partners and the homeostasis of ABI5 in the ABA signaling response remain to be further investigated. In this study, we found that the accelerated effect of MdABI5 on leaf senescence is partly dependent on MdbHLH93, an activator of leaf senescence in apple. MdABI5 directly interacted with MdbHLH93 and improved the transcriptional activation of the senescence-associated gene MdSAG18 by MdbHLH93. MdPUB23, a U-box E3 ubiquitin ligase, physically interacted with MdABI5 and delayed ABA-triggered leaf senescence. Genetic and biochemical analyses suggest that MdPUB23 inhibited MdABI5-promoted leaf premature senescence by targeting MdABI5 for ubiquitin-dependent degradation. In conclusion, our results verify that MdABI5 accelerates leaf senescence through the MdABI5-MdbHLH93-MdSAG18 regulatory module, and MdPUB23 is responsible for the dynamic regulation of ABA-triggered leaf senescence by modulating the homeostasis of MdABI5.
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Affiliation(s)
- Fei Yang
- Apple Technology Innovation Center of Shandong Province, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, Shandong, China
| | - Ling-Ling Zhao
- Yantai Academy of Agricultural Sciences, Yan-Tai 265599, Shandong, China
| | - Lai-Qing Song
- Yantai Academy of Agricultural Sciences, Yan-Tai 265599, Shandong, China
| | - Yuepeng Han
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Hubei Hongshan Laboratory, The Innovative Academy of Seed Design of Chinese Academy of Sciences, Wuhan 430074, China
| | - Chun-Xiang You
- Apple Technology Innovation Center of Shandong Province, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, Shandong, China
| | - Jian-Ping An
- Apple Technology Innovation Center of Shandong Province, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, Shandong, China
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Hubei Hongshan Laboratory, The Innovative Academy of Seed Design of Chinese Academy of Sciences, Wuhan 430074, China
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Xu H, Wang F, Rebecca Njeri Damari, Chen X, Lin Z. Molecular mechanisms underlying the signal perception and transduction during seed germination. MOLECULAR BREEDING : NEW STRATEGIES IN PLANT IMPROVEMENT 2024; 44:27. [PMID: 38525006 PMCID: PMC10954596 DOI: 10.1007/s11032-024-01465-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 03/12/2024] [Indexed: 03/26/2024]
Abstract
QuerySeed germination is a vital step in the life cycle of a plant, playing a significant role in seedling establishment and crop yield potential. It is also an important factor in the conservation of plant germplasm resources. This complex process is influenced by a myriad of factors, including environmental conditions, the genetic makeup of the seed, and endogenous hormones. The perception of these environmental signals triggers a cascade of intricate signal transduction events that determine whether a seed germinates or remains dormant. Despite considerable progress in uncovering the molecular mechanisms governing these processes, many questions remain unanswered. In this review, we summarize the current progress in the molecular mechanisms underlying the perception of environmental signals and consequent signal transduction during seed germination, and discuss questions that need to be addressed to better understand the process of seed germination and develop novel strategies for germplasm improvement.
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Affiliation(s)
- Huibin Xu
- Marine and Agricultural Biotechnology Laboratory, College of Geography and Oceanography, Minjiang University, Fuzhou, 350108 China
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Minjiang University, Fuzhou, 350108 China
| | - Fuxiang Wang
- National Rice Engineering Laboratory of China, Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, 350003 China
| | | | - Xiaofeng Chen
- Marine and Agricultural Biotechnology Laboratory, College of Geography and Oceanography, Minjiang University, Fuzhou, 350108 China
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Minjiang University, Fuzhou, 350108 China
| | - Zhongyuan Lin
- Marine and Agricultural Biotechnology Laboratory, College of Geography and Oceanography, Minjiang University, Fuzhou, 350108 China
- Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Minjiang University, Fuzhou, 350108 China
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Yang X, Lu J, Shi WJ, Chen YH, Yu JW, Chen SH, Zhao DS, Huang LC, Fan XL, Zhang CQ, Zhang L, Liu QQ, Li QF. RGA1 regulates grain size, rice quality and seed germination in the small and round grain mutant srg5. BMC PLANT BIOLOGY 2024; 24:167. [PMID: 38438916 PMCID: PMC10910726 DOI: 10.1186/s12870-024-04864-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 02/25/2024] [Indexed: 03/06/2024]
Abstract
BACKGROUND Generating elite rice varieties with high yield and superior quality is the main goal of rice breeding programs. Key agronomic traits, including grain size and seed germination characteristics, affect the final yield and quality of rice. The RGA1 gene, which encodes the α-subunit of rice G-protein, plays an important role in regulating rice architecture, seed size and abiotic stress responses. However, whether RGA1 is involved in the regulation of rice quality and seed germination traits is still unclear. RESULTS In this study, a rice mutant small and round grain 5 (srg5), was identified in an EMS-induced rice mutant library. Systematic analysis of its major agronomic traits revealed that the srg5 mutant exhibited a semi-dwarf plant height with small and round grain and reduced panicle length. Analysis of the physicochemical properties of rice showed that the difference in rice eating and cooking quality (ECQ) between the srg5 mutant and its wild-type control was small, but the appearance quality was significantly improved. Interestingly, a significant suppression of rice seed germination and shoot growth was observed in the srg5 mutant, which was mainly related to the regulation of ABA metabolism. RGA1 was identified as the candidate gene for the srg5 mutant by BSA analysis. A SNP at the splice site of the first intron disrupted the normal splicing of the RGA1 transcript precursor, resulting in a premature stop codon. Additional linkage analysis confirmed that the target gene causing the srg5 mutant phenotype was RGA1. Finally, the introduction of the RGA1 mutant allele into two indica rice varieties also resulted in small and round rice grains with less chalkiness. CONCLUSIONS These results indicate that RGA1 is not only involved in the control of rice architecture and grain size, but also in the regulation of rice quality and seed germination. This study sheds new light on the biological functions of RGA1, thereby providing valuable information for future systematic analysis of the G-protein pathway and its potential application in rice breeding programs.
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Affiliation(s)
- Xia Yang
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding / Zhongshan Biological Breeding Laboratory/ Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Jun Lu
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding / Zhongshan Biological Breeding Laboratory/ Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Wu-Jian Shi
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding / Zhongshan Biological Breeding Laboratory/ Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Yu-Hao Chen
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding / Zhongshan Biological Breeding Laboratory/ Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Jia-Wen Yu
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding / Zhongshan Biological Breeding Laboratory/ Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Sai-Hua Chen
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding / Zhongshan Biological Breeding Laboratory/ Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Dong-Sheng Zhao
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding / Zhongshan Biological Breeding Laboratory/ Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Li-Chun Huang
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding / Zhongshan Biological Breeding Laboratory/ Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Xiao-Lei Fan
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding / Zhongshan Biological Breeding Laboratory/ Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Chang-Quan Zhang
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding / Zhongshan Biological Breeding Laboratory/ Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Lin Zhang
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding / Zhongshan Biological Breeding Laboratory/ Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Qiao-Quan Liu
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding / Zhongshan Biological Breeding Laboratory/ Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, Jiangsu, China.
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009, Jiangsu, China.
| | - Qian-Feng Li
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding / Zhongshan Biological Breeding Laboratory/ Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, 225009, Jiangsu, China.
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou, 225009, Jiangsu, China.
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Wen Y, Zhao Z, Cheng L, Zhou S, An M, Zhao J, Dong S, Yuan X, Yin M. Genome-wide identification and expression profiling of the ABI5 gene family in foxtail millet (Setaria italica). BMC PLANT BIOLOGY 2024; 24:164. [PMID: 38431546 PMCID: PMC10908088 DOI: 10.1186/s12870-024-04865-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Accepted: 02/26/2024] [Indexed: 03/05/2024]
Abstract
BACKGROUND ABA Insensitive 5 (ABI5) is a basic leucine zipper transcription factor that crucially influences plant growth, development, and stress response. However, there is minimal research on the ABI5 family in foxtail millet. RESULTS In this study, 16 ABI5 genes were identified in foxtail millet, and their sequence composition, gene structures, cis-acting elements, chromosome positions, and gene replication events were analyzed. To more thoroughly evaluate the developmental mechanisms of the SiABI5 family during evolution, we selected three dicotyledons (S. lycopersicum, A. thaliana, F. tataricum) and three (Z. mays, O. sativa, S. bicolor) specific representative monocotyledons associated with foxtail millet for comparative homology mapping. The results showed that foxtail millet ABI5 genes had the best homology with maize. A promoter sequence analysis showed that the SiABI5s contain numerous cis-acting elements related to hormone and stress responses, indicating that the regulation of SiABI5 expression was complex. The expression responses of 16 genes in different tissues, seed germination, and ear development were analyzed. A total of six representative genes were targeted from five subfamilies to characterize their gene expression responses to four different abiotic stresses. Overexpression of SiABI5.12 confers tolerance to osmotic stress in transgenic Arabidopsis thaliana, which demonstrated the function of SiABI5 responded to abiotic stress. CONCLUSIONS In summary, our research results comprehensively characterized the SiABI5 family and can provide a valuable reference for demonstrating the role of SiABI5s in regulating abiotic stress responses in foxtail millet.
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Affiliation(s)
- Yinyuan Wen
- College of Agronomy, Shanxi Agricultural University, Taigu, 030801, China
| | - Zeya Zhao
- College of Agronomy, Shanxi Agricultural University, Taigu, 030801, China
| | - Liuna Cheng
- College of Agronomy, Shanxi Agricultural University, Taigu, 030801, China
| | - Shixue Zhou
- College of Agronomy, Shanxi Agricultural University, Taigu, 030801, China
| | - Mengyao An
- College of Agronomy, Shanxi Agricultural University, Taigu, 030801, China
| | - Juan Zhao
- College of Agronomy, Shanxi Agricultural University, Taigu, 030801, China
| | - Shuqi Dong
- College of Agronomy, Shanxi Agricultural University, Taigu, 030801, China
| | - Xiangyang Yuan
- College of Agronomy, Shanxi Agricultural University, Taigu, 030801, China.
| | - Meiqiang Yin
- College of Agronomy, Shanxi Agricultural University, Taigu, 030801, China.
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Piskurewicz U, Glauser G, Lopez-Molina L. Endospermic brassinosteroids moderate seed thermoinhibition responses in Arabidopsis thaliana. THE NEW PHYTOLOGIST 2024; 241:2320-2325. [PMID: 38130053 DOI: 10.1111/nph.19491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 12/01/2023] [Indexed: 12/23/2023]
Affiliation(s)
- Urszula Piskurewicz
- Department of Plant Sciences, University of Geneva, 30, Quai Ernest-Ansermet, 1211, Geneva, Switzerland
| | - Gaëtan Glauser
- Neuchâtel Platform of Analytical Chemistry, Université de Neuchâtel, Avenue de Bellevaux 51, 2000, Neuchâtel, Switzerland
| | - Luis Lopez-Molina
- Department of Plant Sciences, University of Geneva, 30, Quai Ernest-Ansermet, 1211, Geneva, Switzerland
- Institute of Genetics and Genomics in Geneva (iGE3), University of Geneva, 1, rue Michel-Servet, 1211, Geneva, Switzerland
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Zhang W, Wu M, Zhong X, Liu Y, Yang X, Cai W, Zhu K, Zhang H, Gu J, Wang Z, Liu L, Zhang J, Yang J. Involvement of brassinosteroids and abscisic acid in spikelet degeneration in rice under soil drying during meiosis. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:1580-1600. [PMID: 38035729 DOI: 10.1093/jxb/erad461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 11/28/2023] [Indexed: 12/02/2023]
Abstract
Spikelet degeneration in rice (Oryza sativa L.) is a serious physiological defect, and can be regulated by soil moisture status and phytohormones. This study investigated the possibility that brassinosteroids (BRs) in collaboration with abscisic acid (ABA) are involved in mediating the effect of soil drying during meiosis on spikelet degeneration in rice. Three rice cultivars were field grown and three irrigation regimes including well watered (WW), moderate soil drying (MD), and severe soil drying (SD) were imposed during meiosis. MD significantly decreased spikelet degeneration in comparison with WW, due mainly to the alleviation in oxidative damage via enhancing ascorbate-glutathione (AsA-GSH) cycle activity in young panicles, and SD exhibited the opposite effects. Enhanced AsA-GSH cycle strength, decreased oxidative stress, and spikelet degeneration rate were closely associated with the synergistically elevated BR and ABA levels in young panicles in MD. In contrast, low BR and excessive ABA levels led to an increase in spikelet degeneration in SD. The three cultivars exhibited the same tendencies. The intrinsic link among AsA-GSH cycle, oxidative stress, spikelet degeneration rate, and BR and ABA levels was further verified by using transgenic rice lines and chemical regulators. BRs or ABA play a unique role in regulating spikelet degeneration. Synergistically increased BR and ABA levels in MD could work together to strengthen AsA-GSH cycle activity, leading to a reduction in oxidative damage and spikelet degeneration. On the other hand, a severe imbalance between low BR and excessive ABA levels may have contributed to the opposite effects in SD.
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Affiliation(s)
- Weiyang Zhang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Mengyin Wu
- Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Xiaohan Zhong
- Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Ying Liu
- Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Xinxin Yang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Wei Cai
- Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Kuanyu Zhu
- Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Hao Zhang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Junfei Gu
- Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Zhiqin Wang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Lijun Liu
- Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Jianhua Zhang
- Department of Biology, Hong Kong Baptist University, Hong Kong 999077, China
| | - Jianchang Yang
- Jiangsu Key Laboratory of Crop Genetics and Physiology/ Jiangsu Key Laboratory of Crop Cultivation and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China
- Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
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10
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Liu S, Cai C, Li L, Yu L, Wang Q, Wang X. Transcriptome Analysis Reveals the Molecular Mechanisms of BR Negative Regulatory Factor StBIN2 Maintaining Tuber Dormancy. Int J Mol Sci 2024; 25:2244. [PMID: 38396922 PMCID: PMC10889842 DOI: 10.3390/ijms25042244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/08/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
Potato is an important food crop. After harvest, these tubers will undergo a period of dormancy. Brassinosteroids (BRs) are a new class of plant hormones that regulate plant growth and seed germination. In this study, 500 nM of BR was able to break the dormancy of tubers. Additionally, exogenous BR also upregulated BR signal transduction genes, except for StBIN2. StBIN2 is a negative regulator of BR, but its specific role in tuber dormancy remains unclear. Transgenic methods were used to regulate the expression level of StBIN2 in tubers. It was demonstrated that the overexpression of StBIN2 significantly prolonged tuber dormancy while silencing StBIN2 led to premature sprouting. To further investigate the effect of StBIN2 on tuber dormancy, RNA-Seq was used to analyze the differentially expressed genes in OE-StBIN2, RNAi-StBIN2, and WT tubers. The results showed that StBIN2 upregulated the expression of ABA signal transduction genes but inhibited the expression of lignin synthesis key genes. Meanwhile, it was also found that StBIN2 physically interacted with StSnRK2.2 and StCCJ9. These results indicate that StBIN2 maintains tuber dormancy by mediating ABA signal transduction and lignin synthesis. The findings of this study will help us better understand the molecular mechanisms underlying potato tuber dormancy and provide theoretical support for the development of new varieties using related genes.
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Affiliation(s)
- Shifeng Liu
- College of Agronomy, Sichuan Agriculture University, Chengdu 611130, China; (S.L.); (C.C.); (L.L.); (L.Y.); (Q.W.)
- Potato Research and Development Center, Sichuan Agricultural University, Chengdu 611130, China
| | - Chengcheng Cai
- College of Agronomy, Sichuan Agriculture University, Chengdu 611130, China; (S.L.); (C.C.); (L.L.); (L.Y.); (Q.W.)
- Potato Research and Development Center, Sichuan Agricultural University, Chengdu 611130, China
| | - Liqin Li
- College of Agronomy, Sichuan Agriculture University, Chengdu 611130, China; (S.L.); (C.C.); (L.L.); (L.Y.); (Q.W.)
- Potato Research and Development Center, Sichuan Agricultural University, Chengdu 611130, China
| | - Liping Yu
- College of Agronomy, Sichuan Agriculture University, Chengdu 611130, China; (S.L.); (C.C.); (L.L.); (L.Y.); (Q.W.)
- Potato Research and Development Center, Sichuan Agricultural University, Chengdu 611130, China
| | - Qiang Wang
- College of Agronomy, Sichuan Agriculture University, Chengdu 611130, China; (S.L.); (C.C.); (L.L.); (L.Y.); (Q.W.)
- Potato Research and Development Center, Sichuan Agricultural University, Chengdu 611130, China
| | - Xiyao Wang
- College of Agronomy, Sichuan Agriculture University, Chengdu 611130, China; (S.L.); (C.C.); (L.L.); (L.Y.); (Q.W.)
- Potato Research and Development Center, Sichuan Agricultural University, Chengdu 611130, China
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11
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Guo N, Tang S, Wang Y, Chen W, An R, Ren Z, Hu S, Tang S, Wei X, Shao G, Jiao G, Xie L, Wang L, Chen Y, Zhao F, Sheng Z, Hu P. A mediator of OsbZIP46 deactivation and degradation negatively regulates seed dormancy in rice. Nat Commun 2024; 15:1134. [PMID: 38326370 PMCID: PMC10850359 DOI: 10.1038/s41467-024-45402-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 01/22/2024] [Indexed: 02/09/2024] Open
Abstract
Preharvest sprouting (PHS) is a deleterious phenotype that occurs frequently in rice-growing regions where the temperature and precipitation are high. It negatively affects yield, quality, and downstream grain processing. Seed dormancy is a trait related to PHS. Longer seed dormancy is preferred for rice production as it can prevent PHS. Here, we map QTLs associated with rice seed dormancy and clone Seed Dormancy 3.1 (SDR3.1) underlying one major QTL. SDR3.1 encodes a mediator of OsbZIP46 deactivation and degradation (MODD). We show that SDR3.1 negatively regulates seed dormancy by inhibiting the transcriptional activity of ABIs. In addition, we reveal two critical amino acids of SDR3.1 that are critical for the differences in seed dormancy between the Xian/indica and Geng/japonica cultivars. Further, SDR3.1 has been artificially selected during rice domestication. We propose a two-line model for the process of rice seed dormancy domestication from wild rice to modern cultivars. We believe the candidate gene and germplasm studied in this study would be beneficial for the genetic improvement of rice seed dormancy.
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Affiliation(s)
- Naihui Guo
- State Key Laboratory of Rice Biological Breeding/Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture/China National Rice Improvement Centre/China National Rice Research Institute, Hangzhou, 310006, P. R. China
- Rice Research Institute, Shenyang Agricultural University, Shenyang, 110866, P. R. China
| | - Shengjia Tang
- State Key Laboratory of Rice Biological Breeding/Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture/China National Rice Improvement Centre/China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Yakun Wang
- State Key Laboratory of Rice Biological Breeding/Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture/China National Rice Improvement Centre/China National Rice Research Institute, Hangzhou, 310006, P. R. China
- National Nanfan Research Academy (Sanya), Chinese Academy of Agricultural Sciences, Sanya, 572024, P. R. China
| | - Wei Chen
- State Key Laboratory of Rice Biological Breeding/Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture/China National Rice Improvement Centre/China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Ruihu An
- State Key Laboratory of Rice Biological Breeding/Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture/China National Rice Improvement Centre/China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Zongliang Ren
- State Key Laboratory of Rice Biological Breeding/Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture/China National Rice Improvement Centre/China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Shikai Hu
- State Key Laboratory of Rice Biological Breeding/Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture/China National Rice Improvement Centre/China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Shaoqing Tang
- State Key Laboratory of Rice Biological Breeding/Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture/China National Rice Improvement Centre/China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Xiangjin Wei
- State Key Laboratory of Rice Biological Breeding/Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture/China National Rice Improvement Centre/China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Gaoneng Shao
- State Key Laboratory of Rice Biological Breeding/Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture/China National Rice Improvement Centre/China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Guiai Jiao
- State Key Laboratory of Rice Biological Breeding/Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture/China National Rice Improvement Centre/China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Lihong Xie
- State Key Laboratory of Rice Biological Breeding/Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture/China National Rice Improvement Centre/China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Ling Wang
- State Key Laboratory of Rice Biological Breeding/Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture/China National Rice Improvement Centre/China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Ying Chen
- State Key Laboratory of Rice Biological Breeding/Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture/China National Rice Improvement Centre/China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Fengli Zhao
- State Key Laboratory of Rice Biological Breeding/Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture/China National Rice Improvement Centre/China National Rice Research Institute, Hangzhou, 310006, P. R. China
| | - Zhonghua Sheng
- State Key Laboratory of Rice Biological Breeding/Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture/China National Rice Improvement Centre/China National Rice Research Institute, Hangzhou, 310006, P. R. China.
- Jiangxi Early-season Rice Research Center, Pingxiang, Jiangxi Province, 337000, P. R. China.
| | - Peisong Hu
- State Key Laboratory of Rice Biological Breeding/Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture/China National Rice Improvement Centre/China National Rice Research Institute, Hangzhou, 310006, P. R. China.
- Rice Research Institute, Shenyang Agricultural University, Shenyang, 110866, P. R. China.
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12
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Zeng F, Zheng C, Ge W, Gao Y, Pan X, Ye X, Wu X, Sun Y. Regulatory function of the endogenous hormone in the germination process of quinoa seeds. FRONTIERS IN PLANT SCIENCE 2024; 14:1322986. [PMID: 38259945 PMCID: PMC10801742 DOI: 10.3389/fpls.2023.1322986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 12/08/2023] [Indexed: 01/24/2024]
Abstract
The economic and health significance of quinoa is steadily growing on a global scale. Nevertheless, the primary obstacle to achieving high yields in quinoa cultivation is pre-harvest sprouting (PHS), which is intricately linked to seed dormancy. However, there exists a dearth of research concerning the regulatory mechanisms governing PHS. The regulation of seed germination by various plant hormones has been extensively studied. Consequently, understanding the mechanisms underlying the role of endogenous hormones in the germination process of quinoa seeds and developing strategies to mitigate PHS in quinoa cultivation are of significant research importance. This study employed the HPLC-ESI-MS/MS internal standard and ELISA method to quantify 8 endogenous hormones. The investigation of gene expression changes before and after germination was conducted using RNA-seq analysis, leading to the discovery of 280 differentially expressed genes associated with the regulatory pathway of endogenous hormones. Additionally, a correlation analysis of 99 genes with significant differences identified 14 potential genes that may act as crucial "transportation hubs" in hormonal interactions. Through the performance of an analysis on the modifications in hormone composition and the expression of associated regulatory genes, we posit a prediction that implies the presence of a negative feedback regulatory mechanism of endogenous hormones during the germination of quinoa seeds. This mechanism is potentially influenced by the unique structure of quinoa seeds. To shed light on the involvement of endogenous hormones in the process of quinoa seed germination, we have established a regulatory network. This study aims to offer innovative perspectives on the breeding of quinoa varieties that exhibit resistance to PHS, as well as strategies for preventing PHS.
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Affiliation(s)
| | | | | | | | | | | | - Xiaoyong Wu
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Sichuan Engineering and Technology Research Center of Coarse Cereal Industrialization, School of Food and Biological Engineering, Chengdu University, Chengdu, China
| | - Yanxia Sun
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Sichuan Engineering and Technology Research Center of Coarse Cereal Industrialization, School of Food and Biological Engineering, Chengdu University, Chengdu, China
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13
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Kim SH, Yoon J, Kim H, Lee SJ, Paek NC. Rice Basic Helix-Loop-Helix 079 (OsbHLH079) Delays Leaf Senescence by Attenuating ABA Signaling. RICE (NEW YORK, N.Y.) 2023; 16:60. [PMID: 38093151 PMCID: PMC10719235 DOI: 10.1186/s12284-023-00673-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 11/27/2023] [Indexed: 12/17/2023]
Abstract
Leaf senescence represents the final phase of leaf development and is characterized by a highly organized degenerative process involving the active translocation of nutrients from senescing leaves to growing tissues or storage organs. To date, a large number of senescence-associated transcription factors (sen-TFs) have been identified that regulate the initiation and progression of leaf senescence. Many of these TFs, including NAC (NAM/ATAF1/2/CUC2), WRKY, and MYB TFs, have been implicated in modulating the expression of downstream senescence-associated genes (SAGs) and chlorophyll degradation genes (CDGs) under the control of phytohormones. However, the involvement of basic helix-loop-helix (bHLH) TFs in leaf senescence has been less investigated. Here, we show that OsbHLH079 delays both natural senescence and dark-induced senescence: Overexpression of OsbHLH079 led to a stay-green phenotype, whereas osbhlh079 knockout mutation displayed accelerated leaf senescence. Similar to other sen-TFs, OsbHLH079 showed a gradual escalation in expression as leaves underwent senescence. During this process, the mRNA levels of SAGs and CDGs remained relatively low in OsbHLH079 overexpressors, but increased sharply in osbhlh079 mutants, suggesting that OsbHLH079 negatively regulates the transcription of SAGs and CDGs under senescence conditions. Additionally, we found that OsbHLH079 delays ABA-induced senescence. Subsequent RT-qPCR and dual-luciferase reporter assays revealed that OsbHLH079 downregulates the expression of ABA signaling genes, such as OsABF2, OsABF4, OsABI5, and OsNAP. Taken together, these results demonstrate that OsbHLH079 functions in delaying leaf yellowing by attenuating the ABA responses.
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Affiliation(s)
- Suk-Hwan Kim
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Jungwon Yoon
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Hanna Kim
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Sang-Ji Lee
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Nam-Chon Paek
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea.
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14
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Liu S, Cai C, Li L, Wen H, Liu J, Li L, Wang Q, Wang X. StSN2 interacts with the brassinosteroid signaling suppressor StBIN2 to maintain tuber dormancy. HORTICULTURE RESEARCH 2023; 10:uhad228. [PMID: 38156286 PMCID: PMC10753161 DOI: 10.1093/hr/uhad228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 10/29/2023] [Indexed: 12/30/2023]
Abstract
After harvest, potato tubers undergo an important period of dormancy, which significantly impacts potato quality and seed vigor. StSN2 has been reported as a key gene for maintaining tuber dormancy; in this study, we explored the molecular mechanism by which StSN2 maintains dormancy. StBIN2 was first identified as a candidate protein that interacts with StSN2 by co-immunoprecipitation/mass spectrometry, and both qPCR and enzyme activity experiments showed that StSN2 can promote the StBIN2 expression and activity. In addition, the interaction between StSN2 and StBIN2 was verified by yeast two-hybrid, luciferase complementation experiments and co-immunoprecipitation. Bioinformatics analysis and site-directed mutagenesis confirmed the critical role of cysteine residues of StBIN2 in its binding to StSN2. Similar to that of StSN2, overexpression of StBIN2 extended the dormancy of potato tuber. Interaction between StSN2 and StBIN2 increased the activity of the StBIN2 enzyme, inhibited the expression of StBZR1, and suppressed BR signaling. On the contrary, this interaction promoted the expression of StSnRK2.2/2.3/2.4/2.6 and StABI5, key genes of ABA signaling, and the phosphorylation of StSnRK2.3, thereby promoting ABA signaling. Altogether, our results indicate that StSN2 interacts with StBIN2 through key cysteine residues and StBIN2 maintains tuber dormancy by affecting ABA and BR signaling. Findings of this research offer new insights into the molecular mechanism by which StSN2 maintains potato tuber dormancy through interaction with StSIN2 and provide guidance for potato improvement.
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Affiliation(s)
- Shifeng Liu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Chengcheng Cai
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Luopin Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - He Wen
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Jie Liu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Liqin Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Qiang Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
| | - Xiyao Wang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu 611130, China
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15
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Liu J, Cai C, Liu S, Li L, Wang Q, Wang X. StBIN2 Positively Regulates Potato Formation through Hormone and Sugar Signaling. Int J Mol Sci 2023; 24:16087. [PMID: 38003283 PMCID: PMC10671401 DOI: 10.3390/ijms242216087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/04/2023] [Accepted: 11/06/2023] [Indexed: 11/26/2023] Open
Abstract
Potato is an important food crop worldwide. Brassinosteroids (BRs) are widely involved in plant growth and development, and BIN2 (brassinosteroid insensitive 2) is the negative regulator of their signal transduction. However, the function of BIN2 in the formation of potato tubers remains unclear. In this study, transgenic methods were used to regulate the expression level of StBIN2 in plants, and tuber related phenotypes were analyzed. The overexpression of StBIN2 significantly increased the number of potatoes formed per plant and the weight of potatoes in transgenic plants. In order to further explore the effect of StBIN2 on the formation of potato tubers, this study analyzed BRs, ABA hormone signal transduction, sucrose starch synthase activity, the expression levels of related genes, and interacting proteins. The results show that the overexpression of StBIN2 enhanced the downstream transmission of ABA signals. At the same time, the enzyme activity of the sugar transporter and the expression of synthetic genes were increased in potato plants overexpressing StBIN2, which also demonstrated the upregulation of sucrose and the expression of the starch synthesis gene. Apparently, StBIN2 affected the conversion and utilization of key substances such as glucose, sucrose, and starch in the process of potato formation so as to provide a material basis and energy preparation for forming potatoes. In addition, StBIN2 also promoted the expression of the tuber formation factors StSP6A and StS6K. Altogether, this investigation enriches the study on the mechanism through which StBIN2 regulates potato tuber formation and provides a theoretical basis for achieving a high and stable yield of potato.
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Affiliation(s)
- Jie Liu
- College of Agronomy, Sichuan Agriculture University, Chengdu 611130, China; (J.L.); (C.C.); (S.L.); (L.L.)
- Potato Research and Development Center, Sichuan Agricultural University, Chengdu 611130, China
| | - Chengcheng Cai
- College of Agronomy, Sichuan Agriculture University, Chengdu 611130, China; (J.L.); (C.C.); (S.L.); (L.L.)
- Potato Research and Development Center, Sichuan Agricultural University, Chengdu 611130, China
| | - Shifeng Liu
- College of Agronomy, Sichuan Agriculture University, Chengdu 611130, China; (J.L.); (C.C.); (S.L.); (L.L.)
- Potato Research and Development Center, Sichuan Agricultural University, Chengdu 611130, China
| | - Liqin Li
- College of Agronomy, Sichuan Agriculture University, Chengdu 611130, China; (J.L.); (C.C.); (S.L.); (L.L.)
- Potato Research and Development Center, Sichuan Agricultural University, Chengdu 611130, China
| | - Qiang Wang
- College of Agronomy, Sichuan Agriculture University, Chengdu 611130, China; (J.L.); (C.C.); (S.L.); (L.L.)
- Potato Research and Development Center, Sichuan Agricultural University, Chengdu 611130, China
| | - Xiyao Wang
- College of Agronomy, Sichuan Agriculture University, Chengdu 611130, China; (J.L.); (C.C.); (S.L.); (L.L.)
- Potato Research and Development Center, Sichuan Agricultural University, Chengdu 611130, China
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16
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Qiu YM, Guo J, Jiang WZ, Ding JH, Song RF, Zhang JL, Huang X, Yuan HM. HbBIN2 Functions in Plant Cold Stress Resistance through Modulation of HbICE1 Transcriptional Activity and ROS Homeostasis in Hevea brasiliensis. Int J Mol Sci 2023; 24:15778. [PMID: 37958762 PMCID: PMC10649430 DOI: 10.3390/ijms242115778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/24/2023] [Indexed: 11/15/2023] Open
Abstract
Cold stress poses significant limitations on the growth, latex yield, and ecological distribution of rubber trees (Hevea brasiliensis). The GSK3-like kinase plays a significant role in helping plants adapt to different biotic and abiotic stresses. However, the functions of GSK3-like kinase BR-INSENSITIVE 2 (BIN2) in Hevea brasiliensis remain elusive. Here, we identified HbBIN2s of Hevea brasiliensis and deciphered their roles in cold stress resistance. The transcript levels of HbBIN2s are upregulated by cold stress. In addition, HbBIN2s are present in both the nucleus and cytoplasm and have the ability to interact with the INDUCER OF CBF EXPRESSION1(HbICE1) transcription factor, a central component in cold signaling. HbBIN2 overexpression in Arabidopsis displays decreased tolerance to chilling stress with a lower survival rate and proline content but a higher level of electrolyte leakage (EL) and malondialdehyde (MDA) than wild type under cold stress. Meanwhile, HbBIN2 transgenic Arabidopsis treated with cold stress exhibits a significant increase in the accumulation of reactive oxygen species (ROS) and a decrease in the activity of antioxidant enzymes. Further investigation reveals that HbBIN2 inhibits the transcriptional activity of HbICE1, thereby attenuating the expression of C-REPEAT BINDING FACTOR (HbCBF1). Consistent with this, overexpression of HbBIN2 represses the expression of CBF pathway cold-regulated genes under cold stress. In conclusion, our findings indicate that HbBIN2 functions as a suppressor of cold stress resistance by modulating HbICE1 transcriptional activity and ROS homeostasis.
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Affiliation(s)
| | | | | | | | | | | | - Xi Huang
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), School of Tropical Agriculture and Forestry, Hainan University, Sanya 572025, China; (Y.-M.Q.); (J.G.); (W.-Z.J.); (J.-H.D.); (R.-F.S.); (J.-L.Z.)
| | - Hong-Mei Yuan
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), School of Tropical Agriculture and Forestry, Hainan University, Sanya 572025, China; (Y.-M.Q.); (J.G.); (W.-Z.J.); (J.-H.D.); (R.-F.S.); (J.-L.Z.)
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17
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Derevyanchuk M, Kretynin S, Bukhonska Y, Pokotylo I, Khripach V, Ruelland E, Filepova R, Dobrev PI, Martinec J, Kravets V. Influence of Exogenous 24-Epicasterone on the Hormonal Status of Soybean Plants. PLANTS (BASEL, SWITZERLAND) 2023; 12:3586. [PMID: 37896049 PMCID: PMC10609748 DOI: 10.3390/plants12203586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/21/2023] [Accepted: 10/02/2023] [Indexed: 10/29/2023]
Abstract
Brassinosteroids (BRs) are key phytohormones involved in the regulation of major processes of cell metabolism that guide plant growth. In the past decades, new evidence has made it clear that BRs also play a key role in the orchestration of plant responses to many abiotic and biotic stresses. In the present work, we analyzed the impact of foliar treatment with 24-epicastasterone (ECS) on the endogenous content of major phytohormones (auxins, salicylic acid, jasmonic acid, and abscisic acid) and their intermediates in soybean leaves 7 days following the treatment. Changes in the endogenous content of phytohormones have been identified and quantified by LC/MS. The obtained results point to a clear role of ECS in the upregulation of auxin content (indole-3-acetic acid, IAA) and downregulation of salicylic, jasmonic, and abscisic acid levels. These data confirm that under optimal conditions, ECS in tested concentrations of 0.25 µM and 1 µM might promote growth in soybeans by inducing auxin contents. Benzoic acid (a precursor of salicylic acid (SA)), but not SA itself, has also been highly accumulated under ECS treatment, which indicates an activation of the adaptation strategies of cell metabolism to possible environmental challenges.
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Affiliation(s)
- Michael Derevyanchuk
- VP Kukhar Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, 02094 Kyiv, Ukraine
| | - Serhii Kretynin
- VP Kukhar Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, 02094 Kyiv, Ukraine
| | - Yaroslava Bukhonska
- VP Kukhar Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, 02094 Kyiv, Ukraine
| | - Igor Pokotylo
- VP Kukhar Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, 02094 Kyiv, Ukraine
- Génie Enzymatique et Cellulaire, UMR CNRS 7025, Université de Technologie de Compiègne, 60203 Compiègne, France;
| | - Vladimir Khripach
- Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, Kuprevich Str., 5/2, 220141 Minsk, Belarus
| | - Eric Ruelland
- Génie Enzymatique et Cellulaire, UMR CNRS 7025, Université de Technologie de Compiègne, 60203 Compiègne, France;
| | - Roberta Filepova
- Institute of Experimental Botany, The Czech Academy of Sciences, 16502 Prague, Czech Republic
| | - Petre I. Dobrev
- Institute of Experimental Botany, The Czech Academy of Sciences, 16502 Prague, Czech Republic
| | - Jan Martinec
- Institute of Experimental Botany, The Czech Academy of Sciences, 16502 Prague, Czech Republic
| | - Volodymyr Kravets
- VP Kukhar Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, 02094 Kyiv, Ukraine
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Guo B, Liu M, Yang H, Dai L, Wang L. Brassinosteroids Regulate the Water Deficit and Latex Yield of Rubber Trees. Int J Mol Sci 2023; 24:12857. [PMID: 37629038 PMCID: PMC10454136 DOI: 10.3390/ijms241612857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/12/2023] [Accepted: 08/14/2023] [Indexed: 08/27/2023] Open
Abstract
Brassinolide (BR) is an important plant hormone that regulates the growth and development of plants and the formation of yield. The yield and quality of latex from Hevea brasiliensis are regulated by phytohormones. The understanding of gene network regulation mechanism of latex formation in rubber trees is still very limited. In this research, the rubber tree variety CATAS73397 was selected to analyze the relationship between BR, water deficit resistance, and latex yield. The results showed that BR improves the vitality of rubber trees under water deficit by increasing the rate of photosynthesis, reducing the seepage of osmotic regulatory substances, increasing the synthesis of energy substances, and improving the antioxidant system. Furthermore, BR increased the yield and quality of latex by reducing the plugging index and elevating the lutoid bursting index without decreasing mercaptan, sucrose, and inorganic phosphorus. This was confirmed by an increased expression of genes related to latex flow. RNA-seq analysis further indicated that DEG encoded proteins were enriched in the MAPK signaling pathway, plant hormone signal transduction and sucrose metabolism. Phytohormone content displayed significant differences, in that trans-Zeatin, ethylene, salicylic acid, kinetin, and cytokinin were induced by BR, whereas auxin, abscisic acid, and gibberellin were not. In summary, the current research lays a foundation for comprehending the molecular mechanism of latex formation in rubber trees and explores the potential candidate genes involved in natural rubber biosynthesis to provide useful information for further research in relevant areas.
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Affiliation(s)
| | | | | | | | - Lifeng Wang
- Key Laboratory of Biology and Genetic Resources of Rubber Tree, Ministry of Agriculture and Rural Affairs, Hainan Key Laboratory for Cultivation & Physiology of Tropical Crops, State Key Laboratory Incubation Base for Cultivation and Physiology of Tropical Crops, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; (B.G.); (M.L.); (H.Y.); (L.D.)
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19
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Née G, Krüger T. Dry side of the core: a meta-analysis addressing the original nature of the ABA signalosome at the onset of seed imbibition. FRONTIERS IN PLANT SCIENCE 2023; 14:1192652. [PMID: 37476171 PMCID: PMC10354442 DOI: 10.3389/fpls.2023.1192652] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 06/08/2023] [Indexed: 07/22/2023]
Abstract
The timing of seedling emergence is a major agricultural and ecological fitness trait, and seed germination is controlled by a complex molecular network including phytohormone signalling. One such phytohormone, abscisic acid (ABA), controls a large array of stress and developmental processes, and researchers have long known it plays a crucial role in repressing germination. Although the main molecular components of the ABA signalling pathway have now been identified, the molecular mechanisms through which ABA elicits specific responses in distinct organs is still enigmatic. To address the fundamental characteristics of ABA signalling during germination, we performed a meta-analysis focusing on the Arabidopsis dry seed proteome as a reflexion basis. We combined cutting-edge proteome studies, comparative functional analyses, and protein interaction information with genetic and physiological data to redefine the singular composition and operation of the ABA core signalosome from the onset of seed imbibition. In addition, we performed a literature survey to integrate peripheral regulators present in seeds that directly regulate core component function. Although this may only be the tip of the iceberg, this extended model of ABA signalling in seeds already depicts a highly flexible system able to integrate a multitude of information to fine-tune the progression of germination.
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20
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Liu W, Chen G, He M, Wu J, Wen W, Gu Q, Guo S, Wang Y, Sun J. ABI5 promotes heat stress-induced chlorophyll degradation by modulating the stability of MYB44 in cucumber. HORTICULTURE RESEARCH 2023; 10:uhad089. [PMID: 37334179 PMCID: PMC10273075 DOI: 10.1093/hr/uhad089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 04/27/2023] [Indexed: 06/20/2023]
Abstract
The yellowing of leaves caused by the decomposition of chlorophyll (Chl) is a characteristic event during senescence, which can be induced by various environmental stresses. However, the molecular mechanisms of high temperature-induced Chl degradation in horticultural plants remain poorly understood. Here, we found that heat stress induced Chl degradation and the expression of ABI5 and MYB44 in cucumber. Silencing of ABI5 compromised heat stress-induced Chl degradation, and the transcription of pheophytinase (PPH) and pheophorbide a oxygenase (PAO), two key genes in Chl catabolic pathway, but silencing of MYB44 exhibited the opposite results. Furthermore, ABI5 interacted with MYB44 in vitro and in vivo. ABI5 positively regulated heat stress-induced Chl degradation through two pathways. ABI5 directly bound to PPH and PAO promoters to promote their expression, leading to accelerating Chl degradation. On the other hand, the interaction between ABI5 and MYB44 reduced the binding of MYB44 to PPH and PAO promoters and led to the ubiquitination-depended protein degradation of MYB44, thereby alleviating the transcription inhibitory effect of MYB44 on PPH and PAO. Taken together, our findings propose a new regulatory network for ABI5 in regulating heat stress-induced Chl degradation.
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Affiliation(s)
- Weikang Liu
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Guangling Chen
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Mingming He
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Jianqiang Wu
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Wenxu Wen
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Qinsheng Gu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China
| | - Shirong Guo
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Yu Wang
- Corresponding authors: E-mails: ;
| | - Jin Sun
- Corresponding authors: E-mails: ;
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21
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Zhou B, Luo Q, Shen Y, Wei L, Song X, Liao H, Ni L, Shen T, Du X, Han J, Jiang M, Feng S, Wu G. Coordinated regulation of vegetative phase change by brassinosteroids and the age pathway in Arabidopsis. Nat Commun 2023; 14:2608. [PMID: 37147280 PMCID: PMC10163027 DOI: 10.1038/s41467-023-38207-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 04/18/2023] [Indexed: 05/07/2023] Open
Abstract
Vegetative phase change in plants is regulated by a gradual decline in the level of miR156 and a corresponding increase in the expression of its targets, SQUAMOSA PROMOTER BINDING PROTEIN-LIKE (SPL) genes. Gibberellin (GA), jasmonic acid (JA), and cytokinin (CK) regulate vegetative phase change by affecting genes in the miR156-SPL pathway. However, whether other phytohormones play a role in vegetative phase change remains unknown. Here, we show that a loss-of-function mutation in the brassinosteroid (BR) biosynthetic gene, DWARF5 (DWF5), delays vegetative phase change, and the defective phenotype is primarily attributable to reduced levels of SPL9 and miR172, and a corresponding increase in TARGET OF EAT1 (TOE1). We further show that GLYCOGEN SYNTHASE KINASE3 (GSK3)-like kinase BRASSINOSTEROID INSENSITIVE2 (BIN2) directly interacts with and phosphorylates SPL9 and TOE1 to cause subsequent proteolytic degradation. Therefore, BRs function to stabilize SPL9 and TOE1 simultaneously to regulate vegetative phase change in plants.
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Affiliation(s)
- Bingying Zhou
- College of Plant Sciences, Jilin University, Jilin, 130062, China
- The State Key Laboratory of Subtropical Silviculture, The Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vege-table, Ministry of Agriculture and Rural Affairs, College of Horticultural Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Qing Luo
- College of Plant Sciences, Jilin University, Jilin, 130062, China
- The State Key Laboratory of Subtropical Silviculture, The Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vege-table, Ministry of Agriculture and Rural Affairs, College of Horticultural Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Yanghui Shen
- The State Key Laboratory of Subtropical Silviculture, The Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vege-table, Ministry of Agriculture and Rural Affairs, College of Horticultural Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Liang Wei
- The State Key Laboratory of Subtropical Silviculture, The Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vege-table, Ministry of Agriculture and Rural Affairs, College of Horticultural Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Xia Song
- The State Key Laboratory of Subtropical Silviculture, The Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vege-table, Ministry of Agriculture and Rural Affairs, College of Horticultural Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Hangqian Liao
- The State Key Laboratory of Subtropical Silviculture, The Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vege-table, Ministry of Agriculture and Rural Affairs, College of Horticultural Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Lan Ni
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Tao Shen
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Xinglin Du
- College of Plant Sciences, Jilin University, Jilin, 130062, China
| | - Junyou Han
- College of Plant Sciences, Jilin University, Jilin, 130062, China
| | - Mingyi Jiang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Shengjun Feng
- The State Key Laboratory of Subtropical Silviculture, The Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vege-table, Ministry of Agriculture and Rural Affairs, College of Horticultural Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China.
| | - Gang Wu
- The State Key Laboratory of Subtropical Silviculture, The Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vege-table, Ministry of Agriculture and Rural Affairs, College of Horticultural Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China.
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22
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Ahmar S, Zolkiewicz K, Gruszka D. Analyses of genes encoding the Glycogen Synthase Kinases in rice and Arabidopsis reveal mechanisms which regulate their expression during development and responses to abiotic stresses. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 332:111724. [PMID: 37142096 DOI: 10.1016/j.plantsci.2023.111724] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 04/11/2023] [Accepted: 05/01/2023] [Indexed: 05/06/2023]
Abstract
Plant Glycogen Synthase Kinases (GSKs) enable a crosstalk among the brassinosteroid signaling and phytohormonal- and stress-response pathways to regulate various physiological processes. Initial information about regulation of the GSK proteins' activity was obtained, however, mechanisms that modulate expression of the GSK genes during plant development and stress responses remain largely unknown. Taking into account the importance of the GSK proteins, combined with the lack of in-depth knowledge about modulation of their expression, research in this area may provide a significant insight into mechanisms regulating these aspects of plant biology. In the current study, a detailed analysis of the GSK promoters in rice and Arabidopsis was performed, including identification of the CpG/CpNpG islands, tandem repeats, cis-acting regulatory elements, conserved motifs, and transcription factor-binding sites. Moreover, characterization of expression profiles of the GSK genes in different tissues, organs and under various abiotic stress conditions was perfomed. Additionally, protein-protein interactions between products of the GSK genes were predicted. Results of this study provided intriguing information about these aspects and insight into various regulatory mechanisms that influence non-redundant and diverse functions of the GSK genes during development and stress responses.Therefore, they may constitute a reference for future research in other plant species.
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Affiliation(s)
- Sunny Ahmar
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia, Jagiellonska 28, 40-032 Katowice, Poland.
| | - Karolina Zolkiewicz
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia, Jagiellonska 28, 40-032 Katowice, Poland.
| | - Damian Gruszka
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia, Jagiellonska 28, 40-032 Katowice, Poland.
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23
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Sheikhi S, Ebrahimi A, Heidari P, Amerian MR, Rashidi-Monfared S, Alipour H. Exogenous 24-epibrassinolide ameliorates tolerance to high-temperature by adjusting the biosynthesis of pigments, enzymatic, non-enzymatic antioxidants, and diosgenin content in fenugreek. Sci Rep 2023; 13:6661. [PMID: 37095206 PMCID: PMC10125993 DOI: 10.1038/s41598-023-33913-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 04/20/2023] [Indexed: 04/26/2023] Open
Abstract
High-temperature stress is widely considered a main plant-growth-limiting factor. The positive effects of 24-epibrassinolide (EBR) as analogs of brassinosteroids (BRs) in modulating abiotic stresses have led this hormone to be referred to as a growth regulator in plants. The current study highlights the influence of EBR on enhancing tolerance to high-temperature and altering the diosgenin content in fenugreek. Different amounts of EBR (4, 8, and 16 μM), harvesting times (6, and 24 h), as well as temperature regimes (23 °C, and 42 °C) were, used as treatments. EBR application under normal temperature and high-temperature stress resulted in decreased malondialdehyde content and electrolyte leakage percentage, while the activity of antioxidant enzymes improved significantly. Exogenous EBR application possibly contributes to activating the nitric oxide, H2O2, and ABA-dependent pathways, enhancing the biosynthesis of abscisic acid and auxin, and regulating the signal transduction pathways, which raises fenugreek tolerance to high-temperature. The SQS (eightfold), SEP (2.8-fold), CAS (11-fold), SMT (17-fold), and SQS (sixfold) expression, considerably increased following EBR application (8 μM) compared to the control. Compared to the control, when the short-term (6 h) high-temperature stress was accompanied by EBR (8 μM), a sixfold increase in diosgenin content was achieved. Our findings highlight the potential role of exogenous 24-epibrassinolide in mitigating the high-temperature stress in fenugreek by stimulating the biosynthesis processes of enzymatic and non-enzymatic antioxidants, chlorophylls, and diosgenin. In conclusion, the current results could be of utmost importance in breeding or biotechnology-based programs of fenugreek and also in the researches related to the engineering of the biosynthesis pathway of diosgenin in this valuable plant.
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Affiliation(s)
- Shahla Sheikhi
- Department of Agriculture and Plant Breeding, Faculty of Agriculture, Shahrood University of Technology, Semnan, Iran
| | - Amin Ebrahimi
- Department of Agriculture and Plant Breeding, Faculty of Agriculture, Shahrood University of Technology, Semnan, Iran.
| | - Parviz Heidari
- Department of Agriculture and Plant Breeding, Faculty of Agriculture, Shahrood University of Technology, Semnan, Iran
| | - Mohamad Reza Amerian
- Department of Agriculture and Plant Breeding, Faculty of Agriculture, Shahrood University of Technology, Semnan, Iran
| | - Sajad Rashidi-Monfared
- Plant Breeding and Biotechnology Department, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran
| | - Hadi Alipour
- Department of Plant Production and Genetics, Faculty of Agriculture, Urmia University, Urmia, Iran.
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24
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Singh A, Roychoudhury A. Abscisic acid in plants under abiotic stress: crosstalk with major phytohormones. PLANT CELL REPORTS 2023; 42:961-974. [PMID: 37079058 DOI: 10.1007/s00299-023-03013-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 03/28/2023] [Indexed: 05/03/2023]
Abstract
KEY MESSAGE Extensive crosstalk exists among ABA and different phytohormones that modulate plant tolerance against different abiotic stress. Being sessile, plants are exposed to a wide range of abiotic stress (drought, heat, cold, salinity and metal toxicity) that exert unwarranted threat to plant life and drastically affect growth, development, metabolism, and yield of crops. To cope with such harsh conditions, plants have developed a wide range of protective phytohormones of which abscisic acid plays a pivotal role. It controls various physiological processes of plants such as leaf senescence, seed dormancy, stomatal closure, fruit ripening, and other stress-related functions. Under challenging situations, physiological responses of ABA manifested in the form of morphological, cytological, and anatomical alterations arise as a result of synergistic or antagonistic interaction with multiple phytohormones. This review provides new insight into ABA homeostasis and its perception and signaling crosstalk with other phytohormones at both molecular and physiological level under critical conditions including drought, salinity, heavy metal toxicity, and extreme temperature. The review also reveals the role of ABA in the regulation of various physiological processes via its positive or negative crosstalk with phytohormones, viz., gibberellin, melatonin, cytokinin, auxin, salicylic acid, jasmonic acid, ethylene, brassinosteroids, and strigolactone in response to alteration of environmental conditions. This review forms a basis for designing of plants that will have an enhanced tolerance capability against different abiotic stress.
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Affiliation(s)
- Ankur Singh
- Department of Biotechnology, St. Xavier's College (Autonomous), 30 Mother Teresa Sarani, Kolkata, 700016, West Bengal, India
| | - Aryadeep Roychoudhury
- Discipline of Life Sciences, School of Sciences, Indira Gandhi National Open University, Maidan Garhi, New Delhi, 110068, India.
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25
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Li Z, Li S, Jin D, Yang Y, Pu Z, Han X, Hu Y, Jiang Y. U-box E3 ubiquitin ligase PUB8 attenuates abscisic acid responses during early seedling growth. PLANT PHYSIOLOGY 2023; 191:2519-2533. [PMID: 36715300 PMCID: PMC10069885 DOI: 10.1093/plphys/kiad044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 01/04/2023] [Indexed: 06/18/2023]
Abstract
ABSCISIC ACID-INSENSITIVE3 (ABI3) and ABI5 are 2 crucial transcription factors in abscisic acid (ABA) signaling, and their homeostasis at the protein level plays a decisive role in seed germination and subsequent seedling growth. Here, we found that PLANT U-BOX 8 (PUB8), a U-box E3 ubiquitin ligase, physically interacts with ABI3 and ABI5 and negatively regulates ABA responses during early Arabidopsis (Arabidopsis thaliana) seedling growth. Loss-of-function pub8 mutants were hypersensitive to ABA-inhibited cotyledon greening, while lines overexpressing PUB8 with low levels of ABI5 protein abundance were insensitive to ABA. Genetic analyses showed that ABI3 and ABI5 were required for the ABA-sensitive phenotype of pub8, indicating that PUB8 functions upstream of ABI3 and ABI5 to regulate ABA responses. Biochemical analyses showed that PUB8 can associate with ABI3 and ABI5 for degradation through the ubiquitin-mediated 26S proteasome pathway. Correspondingly, loss-of-function of PUB8 led to enhanced ABI3 and ABI5 stability, while overexpression of PUB8 impaired accumulation of ABI3 and ABI5 in planta. Further phenotypic analysis indicated that PUB8 compromised the function of ABI5 during early seedling growth. Taken together, our results reveal the regulatory role of PUB8 in modulating the early seedling growth by controlling the homeostasis of ABI3 and ABI5.
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Affiliation(s)
- Zhipeng Li
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan University, Kunming, Yunnan 650091, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shaoqin Li
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dongjie Jin
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yongping Yang
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhengyan Pu
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan University, Kunming, Yunnan 650091, China
| | - Xiao Han
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | - Yanru Hu
- Author for correspondence: (Y.J.), (Y.H.)
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26
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Zhou H, Huang J, Willems P, Van Breusegem F, Xie Y. Cysteine thiol-based post-translational modification: What do we know about transcription factors? TRENDS IN PLANT SCIENCE 2023; 28:415-428. [PMID: 36494303 DOI: 10.1016/j.tplants.2022.11.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 11/15/2022] [Accepted: 11/16/2022] [Indexed: 06/17/2023]
Abstract
Reactive electrophilic species are ubiquitous in plant cells, where they contribute to specific redox-regulated signaling events. Redox signaling is known to modulate gene expression during diverse biological processes, including plant growth, development, and environmental stress responses. Emerging data demonstrates that transcription factors (TFs) are a main target of cysteine thiol-based oxidative post-translational modifications (OxiPTMs), which can alter their transcriptional activity and thereby convey redox information to the nucleus. Here, we review the significant progress that has been made in characterizing cysteine thiol-based OxiPTMs, their biochemical properties, and their functional effects on plant TFs. We discuss the underlying mechanism of redox regulation and its contribution to various physiological processes as well as still outstanding challenges in redox regulation of plant gene expression.
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Affiliation(s)
- Heng Zhou
- Laboratory Center of Life Sciences, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Jingjing Huang
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium; VIB Center for Plant Systems Biology, 9052 Ghent, Belgium
| | - Patrick Willems
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium; VIB Center for Plant Systems Biology, 9052 Ghent, Belgium; Department of Biomolecular Medicine, Ghent University, 9000 Ghent, Belgium; VIB Center for Medical Biotechnology, VIB, 9000 Ghent, Belgium
| | - Frank Van Breusegem
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, 9052 Ghent, Belgium; VIB Center for Plant Systems Biology, 9052 Ghent, Belgium
| | - Yanjie Xie
- Laboratory Center of Life Sciences, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, PR China.
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27
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Wang Y, Wu F, Lin Q, Sheng P, Wu Z, Jin X, Chen W, Li S, Luo S, Duan E, Wang J, Ma W, Ren Y, Cheng Z, Zhang X, Lei C, Guo X, Wang H, Zhu S, Wan J. A regulatory loop establishes the link between the circadian clock and abscisic acid signaling in rice. PLANT PHYSIOLOGY 2023; 191:1857-1870. [PMID: 36493391 PMCID: PMC10022614 DOI: 10.1093/plphys/kiac548] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 11/04/2022] [Indexed: 06/17/2023]
Abstract
There is a close regulatory relationship between the circadian clock and the abscisic acid (ABA) signaling pathway in regulating many developmental processes and stress responses. However, the exact feedback regulation mechanism between them is still poorly understood. Here, we identified the rice (Oryza sativa) clock component PSEUDO-RESPONSE REGULATOR 95 (OsPRR95) as a transcriptional regulator that accelerates seed germination and seedling growth by inhibiting ABA signaling. We also found that OsPRR95 binds to the ABA receptor gene REGULATORY COMPONENTS OF ABA RECEPTORS10 (OsRCAR10) DNA and inhibits its expression. Genetic analysis showed OsRCAR10 acts downstream of OsPRR95 in mediating ABA responses. In addition, the induction of OsPRR95 by ABA partly required a functional OsRCAR10, and the ABA-responsive element-binding factor ABSCISIC ACID INSENSITIVE5 (OsABI5) bound directly to the promoter of OsPRR95 and activated its expression, thus establishing a regulatory feedback loop between OsPRR95, OsRCAR10, and OsABI5. Taken together, our results demonstrated that the OsRCAR10-OsABI5-OsPRR95 feedback loop modulates ABA signaling to fine-tune seed germination and seedling growth, thus establishing the molecular link between ABA signaling and the circadian clock.
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Affiliation(s)
- Yupeng Wang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | | | | | - Peike Sheng
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Ziming Wu
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China
| | - Xin Jin
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Weiwei Chen
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Shuai Li
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Sheng Luo
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Erchao Duan
- National Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Jiachang Wang
- National Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Weiwei Ma
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yulong Ren
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Zhijun Cheng
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xin Zhang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Cailin Lei
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xiuping Guo
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Haiyang Wang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | | | - Jianmin Wan
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- National Key Laboratory for Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
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Mei S, Zhang M, Ye J, Du J, Jiang Y, Hu Y. Auxin contributes to jasmonate-mediated regulation of abscisic acid signaling during seed germination in Arabidopsis. THE PLANT CELL 2023; 35:1110-1133. [PMID: 36516412 PMCID: PMC10015168 DOI: 10.1093/plcell/koac362] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 10/21/2022] [Accepted: 12/09/2022] [Indexed: 05/30/2023]
Abstract
Abscisic acid (ABA) represses seed germination and postgerminative growth in Arabidopsis thaliana. Auxin and jasmonic acid (JA) stimulate ABA function; however, the possible synergistic effects of auxin and JA on ABA signaling and the underlying molecular mechanisms remain elusive. Here, we show that exogenous auxin works synergistically with JA to enhance the ABA-induced delay of seed germination. Auxin biosynthesis, perception, and signaling are crucial for JA-promoted ABA responses. The auxin-dependent transcription factors AUXIN RESPONSE FACTOR10 (ARF10) and ARF16 interact with JASMONATE ZIM-DOMAIN (JAZ) repressors of JA signaling. ARF10 and ARF16 positively mediate JA-increased ABA responses, and overaccumulation of ARF16 partially restores the hyposensitive phenotype of JAZ-accumulating plants defective in JA signaling in response to combined ABA and JA treatment. Furthermore, ARF10 and ARF16 physically associate with ABSCISIC ACID INSENSITIVE5 (ABI5), a critical regulator of ABA signaling, and the ability of ARF16 to stimulate JA-mediated ABA responses is mainly dependent on ABI5. ARF10 and ARF16 activate the transcriptional function of ABI5, whereas JAZ repressors antagonize their effects. Collectively, our results demonstrate that auxin contributes to the synergetic modulation of JA on ABA signaling, and explain the mechanism by which ARF10/16 coordinate with JAZ and ABI5 to integrate the auxin, JA, and ABA signaling pathways.
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Affiliation(s)
- Song Mei
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550025, China
| | - Minghui Zhang
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jingwen Ye
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, China
| | - Jiancan Du
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | - Yanjuan Jiang
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | - Yanru Hu
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
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Feng L, Li Y, Zhou YL, Meng GH, Ji ZL, Lin WH, He JX. Integrative transcriptomic and proteomic analyses reveal a positive role of BES1 in salt tolerance in Arabidopsis. FRONTIERS IN PLANT SCIENCE 2023; 14:1034393. [PMID: 36938058 PMCID: PMC10015447 DOI: 10.3389/fpls.2023.1034393] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
INTRODUCTION Salt stress is a major environmental factor limiting plant growth and development. Previous studies have indicated that the steroidal hormones-brassinosteroids (BRs) are important regulators of plant responses to salt stress. However, the underlying molecular mechanisms have not been fully understood. METHODS (1) Phenotypic analysis of bes1-D, BES1-RNAi and their wild-type (Col-0) under salt treatments with different concentrations of NaCl. (2) Transcriptomic and proteomic profiling of BES1-regulated genes and proteins under salt treatment; (3) qRT-PCR validation of selected BES1-regulated genes under salt stress; (4) Transient transcriptional assay of BES1 regulation on its putative target genes in Arabidopsis protoplasts; (5) Electrophoresis Mobility Shift Assay (EMSA) of BES1 binding with its potential target genes. RESULTS AND DISCUSSION Phenotypic analysis indicated that bes1-D, a gain-of-function mutant of the BR-regulated transcription factor BES1 in Arabidopsis showed better salt tolerance than the wild-type plant, while a BES1 RNA interference (BES1-RNAi) line was more sensitive to salt stress. Global gene expression profiling and time series clustering analyses identified a total of 1,170 genes whose expression was boosted in bes1-D under salt stress. Further GO enrichment and gene functional network analyses identified several key modules that are regulated by BES1 and most sensitive to salt stress perturbations, including stress response, response to ABA and ROS, flavonoid biosynthesis and transmembrane transport. A comparative proteomic analysis performed under the same stress conditions supported the results from the transcriptome analysis. In addition, transient gene transcription assays in Arabidopsis protoplasts and in vitro DNA binding assays verified that BES1 regulates the expression of some ion transporter genes directly and indirectly. Taken together, our results support a positive role of BES1 in plant salt tolerance.
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Affiliation(s)
- Lei Feng
- School of Life Sciences and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Sha Tin, New Territories, Hong Kong, China
| | - Yan Li
- State Key Laboratory of Subtropical Silviculture, Zhejiang Agriculture and Forestry University, Hangzhou, China
| | - Yu-Ling Zhou
- School of Life Sciences and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Sha Tin, New Territories, Hong Kong, China
| | - Guang-Hua Meng
- School of Life Sciences and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Sha Tin, New Territories, Hong Kong, China
| | - Zhao-Lin Ji
- School of Life Sciences and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Sha Tin, New Territories, Hong Kong, China
- College of Plant Protection, Yangzhou University, Yangzhou, China
| | - Wen-Hui Lin
- The Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
- Shanghai Collaborative Innovation Center of Agri-Seeds, Joint Center for Single Cell Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Jun-Xian He
- School of Life Sciences and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Sha Tin, New Territories, Hong Kong, China
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Song Y, Wang Y, Yu Q, Sun Y, Zhang J, Zhan J, Ren M. Regulatory network of GSK3-like kinases and their role in plant stress response. FRONTIERS IN PLANT SCIENCE 2023; 14:1123436. [PMID: 36938027 PMCID: PMC10014926 DOI: 10.3389/fpls.2023.1123436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
Glycogen synthase kinase 3 (GSK3) family members are evolutionally conserved Ser/Thr protein kinases in mammals and plants. In plants, the GSK3s function as signaling hubs to integrate the perception and transduction of diverse signals required for plant development. Despite their role in the regulation of plant growth and development, emerging research has shed light on their multilayer function in plant stress responses. Here we review recent advances in the regulatory network of GSK3s and the involvement of GSK3s in plant adaptation to various abiotic and biotic stresses. We also discuss the molecular mechanisms underlying how plants cope with environmental stresses through GSK3s-hormones crosstalk, a pivotal biochemical pathway in plant stress responses. We believe that our overview of the versatile physiological functions of GSK3s and underlined molecular mechanism of GSK3s in plant stress response will not only opens further research on this important topic but also provide opportunities for developing stress-resilient crops through the use of genetic engineering technology.
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Affiliation(s)
- Yun Song
- School of Life Sciences, Liaocheng University, Liaocheng, China
| | - Ying Wang
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu, China
- Hainan Yazhou Bay Seed Laboratory, Sanya, China
- National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya, China
| | - Qianqian Yu
- School of Life Sciences, Liaocheng University, Liaocheng, China
| | - Yueying Sun
- School of Life Sciences, Liaocheng University, Liaocheng, China
| | - Jianling Zhang
- School of Life Sciences, Liaocheng University, Liaocheng, China
| | - Jiasui Zhan
- Department of Forest Mycology and Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Maozhi Ren
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu, China
- Hainan Yazhou Bay Seed Laboratory, Sanya, China
- National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya, China
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Ju L, Dong H, Yang R, Jing Y, Zhang Y, Liu L, Zhu Y, Chen KM, Ping J, Sun J. BIN2 phosphorylates the Thr280 of CO to restrict its function in promoting Arabidopsis flowering. FRONTIERS IN PLANT SCIENCE 2023; 14:1068949. [PMID: 36794216 PMCID: PMC9923014 DOI: 10.3389/fpls.2023.1068949] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 01/17/2023] [Indexed: 05/30/2023]
Abstract
CONSTANS (CO) is a central regulator of floral initiation in response to photoperiod. In this study, we show that the GSK3 kinase BIN2 physically interacts with CO and the gain-of-function mutant bin2-1 displays late flowering phenotype through down-regulation of FT transcription. Genetic analyses show that BIN2 genetically acts upstream of CO in regulating flowering time. Further, we illustrate that BIN2 phosphorylates the Thr280 residue of CO. Importantly, the BIN2 phosphorylation of Thr280 residue restricts the function of CO in promoting flowering through affecting its DNA-binding activity. Moreover, we reveal that the N-terminal part of CO harboring the B-Box domain mediates the interaction of both CO-CO and BIN2-CO. We find that BIN2 inhibits the formation of CO dimer/oligomer. Taken together, this study reveals that BIN2 regulates flowering time through phosphorylating the Thr280 of CO and inhibiting the CO-CO interaction in Arabidopsis.
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Affiliation(s)
- Lan Ju
- Shanxi Key Laboratory of Sorghum Genetic and Germplasm Innovation, Sorghum Research Institute, Shanxi Agricultural University, Jinzhong, China
| | - Huixue Dong
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ruizhen Yang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yexing Jing
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yunwei Zhang
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Liangyu Liu
- Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental Improvement, and College of Life Sciences, Capital Normal University, Beijing, China
| | - Yingfang Zhu
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, China
| | - Kun-Ming Chen
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Life Sciences, Northwest A&F University, Yangling, China
| | - Junai Ping
- Shanxi Key Laboratory of Sorghum Genetic and Germplasm Innovation, Sorghum Research Institute, Shanxi Agricultural University, Jinzhong, China
| | - Jiaqiang Sun
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
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An S, Liu Y, Sang K, Wang T, Yu J, Zhou Y, Xia X. Brassinosteroid signaling positively regulates abscisic acid biosynthesis in response to chilling stress in tomato. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2023; 65:10-24. [PMID: 36053143 DOI: 10.1111/jipb.13356] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 09/01/2022] [Indexed: 06/15/2023]
Abstract
Brassinosteroids (BRs) and abscisic acid (ABA) are essential regulators of plant growth and stress tolerance. Although the antagonistic interaction of BRs and ABA is proposed to ensure the balance between growth and defense in model plants, the crosstalk between BRs and ABA in response to chilling in tomato (Solanum lycopersicum), a warm-climate horticultural crop, is unclear. Here, we determined that overexpression of the BR biosynthesis gene DWARF (DWF) or the key BR signaling gene BRASSINAZOLE-RESISTANT1 (BZR1) increases ABA levels in response to chilling stress via positively regulating the expression of the ABA biosynthesis gene 9-CIS-EPOXYCAROTENOID DIOXYGENASE1 (NCED1). BR-induced chilling tolerance was mostly dependent on ABA biosynthesis. Chilling stress or high BR levels decreased the abundance of BRASSINOSTEROID-INSENSITIVE2 (BIN2), a negative regulator of BR signaling. Moreover, we observed that chilling stress increases BR levels and results in the accumulation of BZR1. BIN2 negatively regulated both the accumulation of BZR1 protein and chilling tolerance by suppressing ABA biosynthesis. Our results demonstrate that BR signaling positively regulates chilling tolerance via ABA biosynthesis in tomato. The study has implications in production of warm-climate crops in horticulture.
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Affiliation(s)
- Shengmin An
- Department of Horticulture, Zhejiang University, Hangzhou, 310058, China
| | - Yue Liu
- Department of Horticulture, Zhejiang University, Hangzhou, 310058, China
| | - Kangqi Sang
- Department of Horticulture, Zhejiang University, Hangzhou, 310058, China
| | - Ting Wang
- Department of Horticulture, Zhejiang University, Hangzhou, 310058, China
| | - Jingquan Yu
- Department of Horticulture, Zhejiang University, Hangzhou, 310058, China
- Hainan Institute, Zhejiang University, Sanya, 572025, China
- Key Laboratory of Horticultural Plants Growth, Development and Quality Improvement, Agricultural Ministry of China, Hangzhou, 310058, China
| | - Yanhong Zhou
- Department of Horticulture, Zhejiang University, Hangzhou, 310058, China
- Hainan Institute, Zhejiang University, Sanya, 572025, China
| | - Xiaojian Xia
- Department of Horticulture, Zhejiang University, Hangzhou, 310058, China
- Hainan Institute, Zhejiang University, Sanya, 572025, China
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Zhao X, Zhang T, Bai L, Zhao S, Guo Y, Li Z. CKL2 mediates the crosstalk between abscisic acid and brassinosteroid signaling to promote swift growth recovery after stress in Arabidopsis. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2023; 65:64-81. [PMID: 36282494 DOI: 10.1111/jipb.13397] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 10/22/2022] [Indexed: 06/16/2023]
Abstract
Plants must adapt to the constantly changing environment. Adverse environmental conditions trigger various defensive responses, including growth inhibition mediated by phytohormone abscisic acid (ABA). When the stress recedes, plants must transit rapidly from stress defense to growth recovery, but the underlying mechanisms by which plants switch promptly and accurately between stress resistance and growth are poorly understood. Here, using quantitative phosphoproteomics strategy, we discovered that early ABA signaling activates upstream components of brassinosteroid (BR) signaling through CASEIN KINASE 1-LIKE PROTEIN 2 (CKL2). Further investigations showed that CKL2 interacts with and phosphorylates BRASSINOSTEROID INSENSITIVE1 (BRI1), the main BR receptor, to maintain the basal activity of the upstream of BR pathway in plants exposed to continuous stress conditions. When stress recedes, the elevated phosphorylation of BRI1 by CKL2 contributes to the swift reactivation of BR signaling, which results in quick growth recovery. These results suggest that CKL2 plays a critical regulatory role in the rapid switch between growth and stress resistance. Our evidence expands the understanding of how plants modulate stress defense and growth by integrating ABA and BR signaling cascades.
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Affiliation(s)
- Xiaoyun Zhao
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Tianren Zhang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Li Bai
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Shuangshuang Zhao
- Key Laboratory of Plant Stress, Life Science College, Shandong Normal University, Jinan, 250014, China
| | - Yan Guo
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Zhen Li
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
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Li J, Quan Y, Wang L, Wang S. Brassinosteroid Promotes Grape Berry Quality-Focus on Physicochemical Qualities and Their Coordination with Enzymatic and Molecular Processes: A Review. Int J Mol Sci 2022; 24:ijms24010445. [PMID: 36613887 PMCID: PMC9820165 DOI: 10.3390/ijms24010445] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 12/18/2022] [Accepted: 12/20/2022] [Indexed: 12/29/2022] Open
Abstract
Brassinosteroid (BR) is an important endogenous phytohormone that plays a significant role in fruit quality regulation. The regulation of BR biosynthesis and its physiological effects have been well-studied in various fruits. External quality (fruit longitudinal and transverse diameters, firmness, single berry weight, color) and internal quality (sugars, aroma, anthocyanin, stress-related metabolites) are important parameters that are modified during grape berry development and ripening. Grapevines are grown all over the world as a cash crop and utilized for fresh consumption, wine manufacture, and raisin production. In this paper, the biosynthesis and signaling transduction of BR in grapevine were summarized, as well as the recent developments in understanding the role of BR in regulating the external quality (fruit longitudinal and transverse diameters, firmness, single berry weight, and color) and internal quality (sugars, organic acids, aroma substances, anthocyanins, antioxidants) of grapes. Additionally, current advancements in exogenous BR strategies for improving grape berries quality were examined from the perspectives of enzymatic activity and transcriptional regulation. Furthermore, the interaction between BR and other phytohormones regulating the grape berry quality was also discussed, aiming to provide a reliable reference for better understanding the potential value of BR in the grape/wine industry.
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Kalbfuß N, Strohmayr A, Kegel M, Le L, Grosse-Holz F, Brunschweiger B, Stöckl K, Wiese C, Franke C, Schiestl C, Prem S, Sha S, Franz-Oberdorf K, Hafermann J, Thiemé M, Facher E, Palubicki W, Bolle C, Assaad FF. A role for brassinosteroid signalling in decision-making processes in the Arabidopsis seedling. PLoS Genet 2022; 18:e1010541. [PMID: 36508461 PMCID: PMC9779667 DOI: 10.1371/journal.pgen.1010541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 12/22/2022] [Accepted: 11/23/2022] [Indexed: 12/14/2022] Open
Abstract
Plants often adapt to adverse conditions via differential growth, whereby limited resources are discriminately allocated to optimize the growth of one organ at the expense of another. Little is known about the decision-making processes that underly differential growth. In this study, we developed a screen to identify decision making mutants by deploying two tools that have been used in decision theory: a well-defined yet limited budget, as well as conflict-of-interest scenarios. A forward genetic screen that combined light and water withdrawal was carried out. This identified BRASSINOSTEROID INSENSITIVE 2 (BIN2) alleles as decision mutants with "confused" phenotypes. An assessment of organ and cell length suggested that hypocotyl elongation occurred predominantly via cellular elongation. In contrast, root growth appeared to be regulated by a combination of cell division and cell elongation or exit from the meristem. Gain- or loss- of function bin2 mutants were most severely impaired in their ability to adjust cell geometry in the hypocotyl or cell elongation as a function of distance from the quiescent centre in the root tips. This study describes a novel paradigm for root growth under limiting conditions, which depends not only on hypocotyl-versus-root trade-offs in the allocation of limited resources, but also on an ability to deploy different strategies for root growth in response to multiple stress conditions.
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Affiliation(s)
- Nils Kalbfuß
- Botany, School of Life Sciences, Technische Universität München, Freising, Germany
| | - Alexander Strohmayr
- Botany, School of Life Sciences, Technische Universität München, Freising, Germany
| | - Marcel Kegel
- Botany, School of Life Sciences, Technische Universität München, Freising, Germany
| | - Lien Le
- Botany, School of Life Sciences, Technische Universität München, Freising, Germany
| | | | | | - Katharina Stöckl
- Botany, School of Life Sciences, Technische Universität München, Freising, Germany
| | - Christian Wiese
- Botany, School of Life Sciences, Technische Universität München, Freising, Germany
| | - Carina Franke
- Botany, School of Life Sciences, Technische Universität München, Freising, Germany
| | - Caroline Schiestl
- Botany, School of Life Sciences, Technische Universität München, Freising, Germany
| | - Sophia Prem
- Botany, School of Life Sciences, Technische Universität München, Freising, Germany
| | - Shuyao Sha
- Botany, School of Life Sciences, Technische Universität München, Freising, Germany
| | | | - Juliane Hafermann
- Botany, School of Life Sciences, Technische Universität München, Freising, Germany
| | - Marc Thiemé
- Botany, School of Life Sciences, Technische Universität München, Freising, Germany
| | - Eva Facher
- Systematic Botany and Mycology, Faculty of Biology, Ludwig-Maximilians-University, Munich, Germany
| | - Wojciech Palubicki
- Mathematics and Computer Science, Adam Mickiewicz University, Poznań, Polen
| | - Cordelia Bolle
- Plant Molecular Biology (Botany), Ludwig-Maximilians-University Munich, Martinsried, Germany
| | - Farhah F. Assaad
- Botany, School of Life Sciences, Technische Universität München, Freising, Germany
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Li Z, Lian Y, Gong P, Song L, Hu J, Pang H, Ren Y, Xin Z, Wang Z, Lin T. Network of the transcriptome and metabolomics reveals a novel regulation of drought resistance during germination in wheat. ANNALS OF BOTANY 2022; 130:717-735. [PMID: 35972226 PMCID: PMC9670757 DOI: 10.1093/aob/mcac102] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 08/13/2022] [Indexed: 05/21/2023]
Abstract
BACKGROUND AND AIMS The North China Plain, the highest winter-wheat-producing region of China, is seriously threatened by drought. Traditional irrigation wastes a significant amount of water during the sowing season. Therefore, it is necessary to study the drought resistance of wheat during germination to maintain agricultural ecological security. From several main cultivars in the North China Plain, we screened the drought-resistant cultivar JM47 and drought-sensitive cultivar AK58 during germination using the polyethylene glycol (PEG) drought simulation method. An integrated analysis of the transcriptome and metabolomics was performed to understand the regulatory networks related to drought resistance in wheat germination and verify key regulatory genes. METHODS Transcriptional and metabolic changes were investigated using statistical analyses and gene-metabolite correlation networks. Transcript and metabolite profiles were obtained through high-throughput RNA-sequencing data analysis and ultra-performance liquid chromatography quadrupole time-of-flight tandem mass spectrometry, respectively. KEY RESULTS A total of 8083 and 2911 differentially expressed genes (DEGs) and 173 and 148 differential metabolites were identified in AK58 and JM47, respectively, under drought stress. According to the integrated analysis results, mammalian target of rapamycin (mTOR) signalling was prominently enriched in JM47. A decrease in α-linolenic acid content was consistent with the performance of DEGs involved in jasmonic acid biosynthesis in the two cultivars under drought stress. Abscisic acid (ABA) content decreased more in JM47 than in AK58, and linoleic acid content decreased in AK58 but increased in JM47. α-Tocotrienol was upregulated and strongly correlated with α-linolenic acid metabolism. CONCLUSIONS The DEGs that participated in the mTOR and α-linolenic acid metabolism pathways were considered candidate DEGs related to drought resistance and the key metabolites α-tocotrienol, linoleic acid and l-leucine, which could trigger a comprehensive and systemic effect on drought resistance during germination by activating mTOR-ABA signalling and the interaction of various hormones.
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Affiliation(s)
- Zongzhen Li
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
| | - Yanhao Lian
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
| | - Pu Gong
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
| | - Linhu Song
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
| | - Junjie Hu
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
| | - Haifang Pang
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
| | - Yongzhe Ren
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
| | - Zeyu Xin
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
| | - Zhiqiang Wang
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
| | - Tongbao Lin
- College of Agronomy, Henan Agricultural University, Zhengzhou, China
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Liu YJ, An JP, Gao N, Wang X, Chen XX, Wang XF, Zhang S, You CX. MdTCP46 interacts with MdABI5 to negatively regulate ABA signalling and drought response in apple. PLANT, CELL & ENVIRONMENT 2022; 45:3233-3248. [PMID: 36043225 DOI: 10.1111/pce.14429] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 08/25/2022] [Indexed: 06/15/2023]
Abstract
TEOSINTE BRANCHED 1/CYCLOIDEA/PCF (TCP) transcription factors play crucial roles in plant abiotic stresses. However, little is known about the role of TCP genes in the drought stress tolerance of apple. Here, we found that abscisic acid (ABA) and drought treatment reduced the expression of MdTCP46, and overexpression of MdTCP46 reduced ABA sensitivity and drought stress resistance. MdTCP46 was found to interact with MdABI5 both in vitro and in vivo, and this interaction was essential for drought resistance via the ABA-dependent pathway. Overexpression of MdABI5 enhanced ABA sensitivity and drought stress resistance by directly activating the expression of MdEM6 and MdRD29A. MdTCP46 significantly suppressed the transcriptional activity of MdABI5, thereby negatively regulating MdABI5-mediated ABA signalling and drought response. Overall, our results demonstrate that the MdTCP46-MdABI5-MdEM6/MdRD29A regulatory module plays a key role in the modulation of ABA signalling and the drought stress response. These findings provide new insight into the role of MdTCP46 in ABA signalling and abiotic stress responses.
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Affiliation(s)
- Ya-Jing Liu
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, Shandong, China
- School of Horticulture, Anhui Agricultural University, Hefei, China
| | - Jian-Ping An
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, Shandong, China
| | - Ning Gao
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, Shandong, China
| | - Xun Wang
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, Shandong, China
| | - Xi-Xia Chen
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, Shandong, China
| | - Xiao-Fei Wang
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, Shandong, China
| | - Shuai Zhang
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, Shandong, China
| | - Chun-Xiang You
- State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, Shandong, China
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Montes C, Wang P, Liao C, Nolan TM, Song G, Clark NM, Elmore JM, Guo H, Bassham DC, Yin Y, Walley JW. Integration of multi-omics data reveals interplay between brassinosteroid and Target of Rapamycin Complex signaling in Arabidopsis. THE NEW PHYTOLOGIST 2022; 236:893-910. [PMID: 35892179 PMCID: PMC9804314 DOI: 10.1111/nph.18404] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 07/16/2022] [Indexed: 06/01/2023]
Abstract
Brassinosteroids (BRs) and Target of Rapamycin Complex (TORC) are two major actors coordinating plant growth and stress responses. Brassinosteroids function through a signaling pathway to extensively regulate gene expression and TORC is known to regulate translation and autophagy. Recent studies have revealed connections between these two pathways, but a system-wide view of their interplay is still missing. We quantified the level of 23 975 transcripts, 11 183 proteins, and 27 887 phosphorylation sites in wild-type Arabidopsis thaliana and in mutants with altered levels of either BRASSINOSTEROID INSENSITIVE 2 (BIN2) or REGULATORY ASSOCIATED PROTEIN OF TOR 1B (RAPTOR1B), two key players in BR and TORC signaling, respectively. We found that perturbation of BIN2 or RAPTOR1B levels affects a common set of gene-products involved in growth and stress responses. Furthermore, we used the multi-omic data to reconstruct an integrated signaling network. We screened 41 candidate genes identified from the reconstructed network and found that loss of function mutants of many of these proteins led to an altered BR response and/or modulated autophagy activity. Altogether, these results establish a predictive network that defines different layers of molecular interactions between BR- or TORC-regulated growth and autophagy.
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Affiliation(s)
- Christian Montes
- Department of Plant Pathology and MicrobiologyIowa State UniversityAmesIA50011USA
| | - Ping Wang
- Department of Genetics, Development and Cell BiologyIowa State UniversityAmesIA50011USA
| | - Ching‐Yi Liao
- Department of Genetics, Development and Cell BiologyIowa State UniversityAmesIA50011USA
| | - Trevor M. Nolan
- Department of Genetics, Development and Cell BiologyIowa State UniversityAmesIA50011USA
- Department of BiologyDuke UniversityDurhamNC27708USA
| | - Gaoyuan Song
- Department of Plant Pathology and MicrobiologyIowa State UniversityAmesIA50011USA
| | - Natalie M. Clark
- Department of Plant Pathology and MicrobiologyIowa State UniversityAmesIA50011USA
| | - J. Mitch Elmore
- Department of Plant Pathology and MicrobiologyIowa State UniversityAmesIA50011USA
- USDA‐ARS Cereal Disease LaboratoryUniversity of MinnesotaSt PaulMN55108USA
| | - Hongqing Guo
- Department of Genetics, Development and Cell BiologyIowa State UniversityAmesIA50011USA
| | - Diane C. Bassham
- Department of Genetics, Development and Cell BiologyIowa State UniversityAmesIA50011USA
| | - Yanhai Yin
- Department of Genetics, Development and Cell BiologyIowa State UniversityAmesIA50011USA
- Plant Sciences InstituteIowa State UniversityAmesIA50011USA
| | - Justin W. Walley
- Department of Plant Pathology and MicrobiologyIowa State UniversityAmesIA50011USA
- Plant Sciences InstituteIowa State UniversityAmesIA50011USA
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Han Q, Tan W, Zhao Y, Yang F, Yao X, Lin H, Zhang D. Salicylic acid-activated BIN2 phosphorylation of TGA3 promotes Arabidopsis PR gene expression and disease resistance. EMBO J 2022; 41:e110682. [PMID: 35950443 PMCID: PMC9531300 DOI: 10.15252/embj.2022110682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 06/28/2022] [Accepted: 07/21/2022] [Indexed: 11/09/2022] Open
Abstract
The plant defense hormone, salicylic acid (SA), plays essential roles in immunity and systemic acquired resistance. Salicylic acid induced by the pathogen is perceived by the receptor nonexpressor of pathogenesis-related genes 1 (NPR1), which is recruited by TGA transcription factors to induce the expression of pathogenesis-related (PR) genes. However, the mechanism by which post-translational modifications affect TGA's transcriptional activity by salicylic acid signaling/pathogen infection is not well-established. Here, we report that the loss-of-function mutant of brassinosteroid insensitive2 (BIN2) and its homologs, bin2-3 bil1 bil2, causes impaired pathogen resistance and insensitivity to SA-induced PR gene expression, whereas the gain-of-function mutant, bin2-1, exhibited enhanced SA signaling and immunity against the pathogen. Our results demonstrate that salicylic acid activates BIN2 kinase, which in turn phosphorylates TGA3 at Ser33 to enhance TGA3 DNA binding ability and NPR1-TGA3 complex formation, leading to the activation of PR gene expression. These findings implicate BIN2 as a new component of salicylic acid signaling, functioning as a key node in balancing brassinosteroid-mediated plant growth and SA-induced immunity.
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Affiliation(s)
- Qing Han
- Ministry of Education Key Laboratory for Bio‐Resource and Eco‐Environment, College of Life Science, State Key Laboratory of Hydraulics and Mountain River EngineeringSichuan UniversityChengduChina
| | - Wenrong Tan
- Ministry of Education Key Laboratory for Bio‐Resource and Eco‐Environment, College of Life Science, State Key Laboratory of Hydraulics and Mountain River EngineeringSichuan UniversityChengduChina
- School of Life Science and EngineeringSouthwest University of Science and TechnologyMianyangChina
| | - Yuqing Zhao
- Ministry of Education Key Laboratory for Bio‐Resource and Eco‐Environment, College of Life Science, State Key Laboratory of Hydraulics and Mountain River EngineeringSichuan UniversityChengduChina
| | - Feng Yang
- Ministry of Education Key Laboratory for Bio‐Resource and Eco‐Environment, College of Life Science, State Key Laboratory of Hydraulics and Mountain River EngineeringSichuan UniversityChengduChina
| | - Xiuhong Yao
- Ministry of Education Key Laboratory for Bio‐Resource and Eco‐Environment, College of Life Science, State Key Laboratory of Hydraulics and Mountain River EngineeringSichuan UniversityChengduChina
| | - Honghui Lin
- Ministry of Education Key Laboratory for Bio‐Resource and Eco‐Environment, College of Life Science, State Key Laboratory of Hydraulics and Mountain River EngineeringSichuan UniversityChengduChina
| | - Dawei Zhang
- Ministry of Education Key Laboratory for Bio‐Resource and Eco‐Environment, College of Life Science, State Key Laboratory of Hydraulics and Mountain River EngineeringSichuan UniversityChengduChina
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Li C, Dong S, Beckles DM, Miao H, Sun J, Liu X, Wang W, Zhang S, Gu X. The qLTG1.1 candidate gene CsGAI regulates low temperature seed germination in cucumber. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2022; 135:2593-2607. [PMID: 35764690 DOI: 10.1007/s00122-022-04097-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Accepted: 04/07/2022] [Indexed: 06/15/2023]
Abstract
The CsGAI gene, identified by map-based, was involved in regulating seed germination in low temperature via the GA and ABA signaling pathways. Low temperature reduces the percentage of seeds germinating and delays seed germinating time, thus posing a threat to cucumber production. However, the molecular mechanism regulating low temperature germination in cucumber is unknown. We here dissected a major quantitative trait locus qLTG1.1 that controls seed germination at low temperature in cucumber. First, we fine-mapped qLTG1.1 to a 46.3-kb interval, containing three candidate genes. Sequence alignment and gene expression analysis identified Csa1G408720 as the gene of interest that was highly expressed in seeds, and encoded a highly conserved, low temperature-regulated DELLA family protein CsGAI. GUS expression analysis indicated that higher promoter activity underscored higher transcriptional expression of the CsGAI gene. Consistent with the known roles of GAI in ABA and GA signaling during germination, genes involved in the GA (CsGA2ox, CsGA3ox) and ABA biosynthetic pathways (CsABA1, CsABA2, CsAAO3 and CsNCED) were found to be differently regulated in the tolerant and sensitive genotypes under low temperatures, and this was reflected in differences in their ratio of GA-to-ABA. Based on these data, we proposed a working model explaining how CsGAI integrates the GA and ABA signaling pathways, to regulate cucumber seed germination at low temperature, thus providing new insights into this mechanism.
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Affiliation(s)
- Caixia Li
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Shaoyun Dong
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Diane M Beckles
- Department of Plant Sciences, University of California, One Shield Avenue, Dav is Davis, CA, 95616, USA
| | - Han Miao
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Jiaqiang Sun
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xiaoping Liu
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Weiping Wang
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Shengping Zhang
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| | - Xingfang Gu
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
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Farooq MA, Ma W, Shen S, Gu A. Underlying Biochemical and Molecular Mechanisms for Seed Germination. Int J Mol Sci 2022; 23:ijms23158502. [PMID: 35955637 PMCID: PMC9369107 DOI: 10.3390/ijms23158502] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 07/24/2022] [Accepted: 07/29/2022] [Indexed: 02/01/2023] Open
Abstract
With the burgeoning population of the world, the successful germination of seeds to achieve maximum crop production is very important. Seed germination is a precise balance of phytohormones, light, and temperature that induces endosperm decay. Abscisic acid and gibberellins—mainly with auxins, ethylene, and jasmonic and salicylic acid through interdependent molecular pathways—lead to the rupture of the seed testa, after which the radicle protrudes out and the endosperm provides nutrients according to its growing energy demand. The incident light wavelength and low and supra-optimal temperature modulates phytohormone signaling pathways that induce the synthesis of ROS, which results in the maintenance of seed dormancy and germination. In this review, we have summarized in detail the biochemical and molecular processes occurring in the seed that lead to the germination of the seed. Moreover, an accurate explanation in chronological order of how phytohormones inside the seed act in accordance with the temperature and light signals from outside to degenerate the seed testa for the thriving seed’s germination has also been discussed.
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Gong D, He F, Liu J, Zhang C, Wang Y, Tian S, Sun C, Zhang X. Understanding of Hormonal Regulation in Rice Seed Germination. LIFE (BASEL, SWITZERLAND) 2022; 12:life12071021. [PMID: 35888110 PMCID: PMC9324290 DOI: 10.3390/life12071021] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/01/2022] [Accepted: 07/02/2022] [Indexed: 01/06/2023]
Abstract
Seed germination is a critical stage during the life cycle of plants. It is well known that germination is regulated by a series of internal and external factors, especially plant hormones. In Arabidopsis, many germination-related factors have been identified, while in rice, the important crop and monocot model species and the further molecular mechanisms and regulatory networks controlling germination still need to be elucidated. Hormonal signals, especially those of abscisic acid (ABA) and gibberellin (GA), play a dominant role in determining whether a seed germinates or not. The balance between the content and sensitivity of these two hormones is the key to the regulation of germination. In this review, we present the foundational knowledge of ABA and GA pathways obtained from germination research in Arabidopsis. Then, we highlight the current advances in the identification of the regulatory genes involved in ABA- or GA-mediated germination in rice. Furthermore, other plant hormones regulate seed germination, most likely by participating in the ABA or GA pathways. Finally, the results from some regulatory layers, including transcription factors, post-transcriptional regulations, and reactive oxygen species, are also discussed. This review aims to summarize our current understanding of the complex molecular networks involving the key roles of plant hormones in regulating the seed germination of rice.
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Affiliation(s)
- Diankai Gong
- Liaoning Rice Research Institute, Shenyang 110115, China; (D.G.); (C.Z.); (Y.W.); (S.T.); (C.S.)
| | - Fei He
- Tianjin Key Laboratory of Crop Genetics and Breeding, Tianjin Crop Research Institute, Tianjin Academy of Agricultural Sciences, Tianjin 300384, China; (F.H.); (J.L.)
| | - Jingyan Liu
- Tianjin Key Laboratory of Crop Genetics and Breeding, Tianjin Crop Research Institute, Tianjin Academy of Agricultural Sciences, Tianjin 300384, China; (F.H.); (J.L.)
| | - Cheng Zhang
- Liaoning Rice Research Institute, Shenyang 110115, China; (D.G.); (C.Z.); (Y.W.); (S.T.); (C.S.)
| | - Yanrong Wang
- Liaoning Rice Research Institute, Shenyang 110115, China; (D.G.); (C.Z.); (Y.W.); (S.T.); (C.S.)
| | - Shujun Tian
- Liaoning Rice Research Institute, Shenyang 110115, China; (D.G.); (C.Z.); (Y.W.); (S.T.); (C.S.)
| | - Chi Sun
- Liaoning Rice Research Institute, Shenyang 110115, China; (D.G.); (C.Z.); (Y.W.); (S.T.); (C.S.)
| | - Xue Zhang
- Liaoning Rice Research Institute, Shenyang 110115, China; (D.G.); (C.Z.); (Y.W.); (S.T.); (C.S.)
- Correspondence: ; Tel.: +86-150-4020-6835
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Nemati I, Sedghi M, Hosseini Salekdeh G, Tavakkol Afshari R, Naghavi MR, Gholizadeh S. DELAY OF GERMINATION 1 ( DOG1) regulates dormancy in dimorphic seeds of Xanthium strumarium. FUNCTIONAL PLANT BIOLOGY : FPB 2022; 49:742-758. [PMID: 35569923 DOI: 10.1071/fp21315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 03/23/2022] [Indexed: 06/15/2023]
Abstract
Seed dormancy ensures plant survival but many mechanisms remain unclear. A high-throughput RNA-seq analysis investigated the mechanisms involved in the establishment of dormancy in dimorphic seeds of Xanthium strumarium (L.) developing in one single burr. Results showed that DOG1 , the main dormancy gene in Arabidopsis thaliana L., was over-represented in the dormant seed leading to the formation of two seeds with different cell wall properties. Less expression of DME /EMB1649 , UBP26 , EMF2, MOM, SNL2, and AGO4 in the non-dormant seed was observed, which function in the chromatin remodelling of dormancy-associated genes through DNA methylation. However, higher levels of ATXR7 /SDG25, ELF6 , and JMJ16/PKDM7D in the non-dormant seed that act at the level of histone demethylation and activate germination were found. Dramatically lower expression in the splicing factors SUA, PWI , and FY in non-dormant seed may indicate that variation in RNA splicing for ABA sensitivity and transcriptional elongation control of DOG1 is of importance for inducing seed dormancy. Seed size and germination may be influenced by respiratory factors, and alterations in ABA content and auxin distribution and responses. TOR (a serine/threonine-protein kinase) is likely at the centre of a regulatory hub controlling seed metabolism, maturation, and germination. Over-representation of the respiration-associated genes (ACO3 , PEPC3 , and D2HGDH ) was detected in non-dormant seed, suggesting differential energy supplies in the two seeds. Degradation of ABA biosynthesis and/or proper auxin signalling in the large seed may control germinability, and suppression of endoreduplication in the small seed may be a mechanism for cell differentiation and cell size determination.
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Affiliation(s)
- Iman Nemati
- Department of Plant Production and Genetics Engineering, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Mohammad Sedghi
- Department of Plant Production and Genetics Engineering, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Ghasem Hosseini Salekdeh
- Department of Molecular Sciences, Macquarie University, Sydney, NSW 2109, Australia; and Department of Systems and Synthetic Biology, Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research Education and Extension Organization (AREEO), Karaj, Iran
| | - Reza Tavakkol Afshari
- Department of Agronomy, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
| | | | - Somayeh Gholizadeh
- Department of Plant Breeding and Biotechnology, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
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Wu Q, Liu Y, Xie Z, Yu B, Sun Y, Huang J. OsNAC016 regulates plant architecture and drought tolerance by interacting with the kinases GSK2 and SAPK8. PLANT PHYSIOLOGY 2022; 189:1296-1313. [PMID: 35333328 PMCID: PMC9237679 DOI: 10.1093/plphys/kiac146] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 03/04/2022] [Indexed: 05/04/2023]
Abstract
Ideal plant architecture and drought tolerance are important determinants of yield potential in rice (Oryza sativa). Here, we found that OsNAC016, a rice NAC (NAM, ATAF, and CUC) transcription factor, functions as a regulator in the crosslink between brassinosteroid (BR)-mediated plant architecture and abscisic acid (ABA)-regulated drought responses. The loss-of-function mutant osnac016 exhibited erect leaves and shortened internodes, but OsNAC016-overexpressing plants had opposite phenotypes. Further investigation revealed that OsNAC016 regulated the expression of the BR biosynthesis gene D2 by binding to its promoter. Moreover, OsNAC016 interacted with and was phosphorylated by GSK3/SHAGGY-LIKE KINASE2 (GSK2), a negative regulator in the BR pathway. Meanwhile, the mutant osnac016 had improved drought stress tolerance, supported by a decreased water loss rate and enhanced stomatal closure in response to exogenous ABA, but OsNAC016-overexpressing plants showed attenuated drought tolerance and reduced ABA sensitivity. Further, OSMOTIC STRESS/ABA-ACTIVATED PROTEIN KINASE8 (SAPK8) phosphorylated OsNAC016 and reduced its stability. The ubiquitin/26S proteasome system is an important degradation pathway of OsNAC016 via the interaction with PLANT U-BOX PROTEIN43 (OsPUB43) that mediates the ubiquitination of OsNAC016. Notably, RNA-sequencing analysis revealed global roles of OsNAC016 in promoting BR-mediated gene expression and repressing ABA-dependent drought-responsive gene expression, which was confirmed by chromatin immunoprecipitation quantitative PCR analysis. Our findings establish that OsNAC016 is positively involved in BR-regulated rice architecture, negatively modulates ABA-mediated drought tolerance, and is regulated by GSK2, SAPK8, and OsPUB43 through posttranslational modification. Our data provide insights into how plants balance growth and survival by coordinately regulating the growth-promoting signaling pathway and response under abiotic stresses.
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Affiliation(s)
- Qi Wu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, China
| | - Yingfan Liu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, China
| | - Zizhao Xie
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, China
| | - Bo Yu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, China
| | - Ying Sun
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, China
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Deng J, Kong L, Zhu Y, Pei D, Chen X, Wang Y, Qi J, Song C, Yang S, Gong Z. BAK1 plays contrasting roles in regulating abscisic acid-induced stomatal closure and abscisic acid-inhibited primary root growth in Arabidopsis. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2022; 64:1264-1280. [PMID: 35352463 DOI: 10.1111/jipb.13257] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 03/25/2022] [Indexed: 05/26/2023]
Abstract
The mechanisms that balance plant growth and stress responses are poorly understood, but they appear to involve abscisic acid (ABA) signaling mediated by protein kinases. Here, to explore these mechanisms, we examined the responses of Arabidopsis thaliana protein kinase mutants to ABA treatment. We found that mutants of BRASSINOSTEROID INSENSITIVE 1-ASSOCIATED RECEPTOR KINASE 1 (BAK1) were hypersensitive to the effects of ABA on both seed germination and primary root growth. The kinase OPEN STOMATA 1 (OST1) was more highly activated by ABA in bak1 mutant than the wild type. BAK1 was not activated by ABA treatment in the dominant negative mutant abi1-1 or the pyr1 pyl4 pyl5 pyl8 quadruple mutant, but it was more highly activated by this treatment in the abi1-2 abi2-2 hab1-1 loss-of-function triple mutant than the wild type. BAK1 phosphorylates OST1 T146 and inhibits its activity. Genetic analyses suggested that BAK1 acts at or upstream of core components in the ABA signaling pathway, including PYLs, PP2Cs, and SnRK2s, during seed germination and primary root growth. Although the upstream brassinosteroid (BR) signaling components BAK1 and BR INSENSITIVE 1 (BRI1) positively regulate ABA-induced stomatal closure, mutations affecting downstream components of BR signaling, including BRASSINOSTEROID-SIGNALING KINASEs (BSKs) and BRASSINOSTEROID-INSENSITIVE 2 (BIN2), did not affect ABA-mediated stomatal movement. Thus, our study uncovered an important role of BAK1 in negatively regulating ABA signaling during seed germination and primary root growth, but positively modulating ABA-induced stomatal closure, thus optimizing the plant growth under drought stress.
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Affiliation(s)
- Jinping Deng
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Lingyao Kong
- College of Life Sciences, Qingdao University, Qingdao, 266071, China
| | - Yinhua Zhu
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Dan Pei
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Xuexue Chen
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Yu Wang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Junsheng Qi
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Chunpeng Song
- Collaborative Innovation Center of Crop Stress Biology, Institute of Plant Stress Biology, Henan University, Kaifeng, 475001, Henan, China
| | - Shuhua Yang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Zhizhong Gong
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
- Institute of Life Science and Green Development, School of Life Sciences, Hebei University, Baoding, 071002, China
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Xiong M, Yu J, Wang J, Gao Q, Huang L, Chen C, Zhang C, Fan X, Zhao D, Liu QQ, Li QF. Brassinosteroids regulate rice seed germination through the BZR1-RAmy3D transcriptional module. PLANT PHYSIOLOGY 2022; 189:402-418. [PMID: 35139229 PMCID: PMC9070845 DOI: 10.1093/plphys/kiac043] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 01/07/2022] [Indexed: 05/03/2023]
Abstract
Seed dormancy and germination, two physiological processes unique to seed-bearing plants, are critical for plant growth and crop production. The phytohormone brassinosteroid (BR) regulates many aspects of plant growth and development, including seed germination. The molecular mechanisms underlying BR control of rice (Oryza sativa) seed germination are mostly unknown. We investigated the molecular regulatory cascade of BR in promoting rice seed germination and post-germination growth. Physiological assays indicated that blocking BR signaling, including introducing defects into the BR-insensitive 1 (BRI1) receptor or overexpressing the glycogen synthase kinase 2 (GSK2) kinase delayed seed germination and suppressed embryo growth. Our results also indicated that brassinazole-resistant 1 (BZR1) is the key downstream transcription factor that mediates BR regulation of seed germination by binding to the alpha-Amylase 3D (RAmy3D) promoter, which affects α-amylase expression and activity and the degradation of starch in the endosperm. The BZR1-RAmy3D module functions independently from the established Gibberellin MYB-alpha-amylase 1A (RAmy1A) module of the gibberellin (GA) pathway. We demonstrate that the BZR1-RAmy3D module also functions in embryo-related tissues. Moreover, RNA-sequencing (RNA-seq) analysis identified more potential BZR1-responsive genes, including those involved in starch and sucrose metabolism. Our study successfully identified the role of the BZR1-RAmy3D transcriptional module in regulating rice seed germination.
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Affiliation(s)
| | | | | | - Qiang Gao
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Jiangsu Key Laboratory of Crop Genetics and Physiology/Sate Key Laboratory of Hybrid Rice, College of Agriculture, Yangzhou University, Yangzhou 225009, Jiangsu, China
| | - Lichun Huang
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Jiangsu Key Laboratory of Crop Genetics and Physiology/Sate Key Laboratory of Hybrid Rice, College of Agriculture, Yangzhou University, Yangzhou 225009, Jiangsu, China
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, Jiangsu, China
| | - Chen Chen
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, Jiangsu, China
| | - Changquan Zhang
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Jiangsu Key Laboratory of Crop Genetics and Physiology/Sate Key Laboratory of Hybrid Rice, College of Agriculture, Yangzhou University, Yangzhou 225009, Jiangsu, China
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, Jiangsu, China
| | - Xiaolei Fan
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Jiangsu Key Laboratory of Crop Genetics and Physiology/Sate Key Laboratory of Hybrid Rice, College of Agriculture, Yangzhou University, Yangzhou 225009, Jiangsu, China
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, Jiangsu, China
| | - Dongsheng Zhao
- Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Jiangsu Key Laboratory of Crop Genetics and Physiology/Sate Key Laboratory of Hybrid Rice, College of Agriculture, Yangzhou University, Yangzhou 225009, Jiangsu, China
- Co-Innovation Center for Modern Production Technology of Grain Crops of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education, Yangzhou University, Yangzhou 225009, Jiangsu, China
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Wang Y, Xu J, Yu J, Zhu D, Zhao Q. Maize GSK3-like kinase ZmSK2 is involved in embryonic development. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 318:111221. [PMID: 35351312 DOI: 10.1016/j.plantsci.2022.111221] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 02/09/2022] [Accepted: 02/11/2022] [Indexed: 05/28/2023]
Abstract
Grain size and weight are closely related to the yield of cereal crops. Abnormal development of the embryo, an important part of the grain, not only affects crop yield but also impacts next-generation survival. Here, we found that maize GSK3-like kinase ZmSK2, a homolog of BIN2 in Arabidopsis, is involved in embryonic development. ZmSK2 overexpression resulted in severe BR defective phenotypes and arrested embryonic development at the transition stage, while the zmsk2 knockout lines showed enlarged embryos. ZmSK2 interacts with Aux/IAA-transcription factor 28 (ZmIAA28), a negative regulator of auxin signaling, and the interaction region is the auxin degron "GWPPV" motif of ZmIAA28 domain II. Coexpression of ZmSK2 with ZmIAA28 increased the accumulation of ZmIAA28 in maize protoplasts, which may have been due to phosphorylation by ZmSK2. In conclusion, this study reveals the function of ZmSK2 in maize embryonic development and proposes that ZmSK2-ZmIAA28 may be another link in the signaling pathway that integrates BR and auxin.
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Affiliation(s)
- Yan Wang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, 100193, Beijing, China
| | - Jianghai Xu
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, 100193, Beijing, China
| | - Jingjuan Yu
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, 100193, Beijing, China
| | - Dengyun Zhu
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, 100193, Beijing, China
| | - Qian Zhao
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, 100193, Beijing, China.
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Jiang J, Yang N, Li L, Qin G, Ren K, Wang H, Deng J, Ding D. Tetraploidy in Citrus wilsonii Enhances Drought Tolerance via Synergistic Regulation of Photosynthesis, Phosphorylation, and Hormonal Changes. FRONTIERS IN PLANT SCIENCE 2022; 13:875011. [PMID: 35574073 PMCID: PMC9096895 DOI: 10.3389/fpls.2022.875011] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 03/25/2022] [Indexed: 06/15/2023]
Abstract
Polyploidy varieties have been reported to exhibit higher stress tolerance relative to their diploid relatives, however, the underlying molecular and physiological mechanisms remain poorly understood. In this study, a batch of autotetraploid Citrus wilsonii were identified from a natural seedling population, and these tetraploid seedlings exhibited greater tolerance to drought stress than their diploids siblings. A global transcriptome analysis revealed that a large number of genes involved in photosynthesis response were enriched in tetraploids under drought stress, which was consistent with the changes in photosynthetic indices including Pn, gs, Tr, Ci, and chlorophyll contents. Compared with diploids, phosphorylation was also modified in the tetraploids after drought stress, as detected through tandem mass tag (TMT)-labeled proteomics. Additionally, tetraploids prioritized the regulation of plant hormone signal transduction at the transcriptional level after drought stress, which was also demonstrated by increased levels of IAA, ABA, and SA and reduced levels of GA3 and JA. Collectively, our results confirmed that the synergistic regulation of photosynthesis response, phosphorylation modification and plant hormone signaling resulted in drought tolerance of autotetraploid C. wilsonii germplasm.
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Affiliation(s)
- Jinglong Jiang
- School of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong, China
| | - Ni Yang
- School of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong, China
| | - Li Li
- School of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong, China
| | - Gongwei Qin
- School of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong, China
| | - Kexin Ren
- School of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong, China
| | - Haotian Wang
- School of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong, China
| | - Jiarui Deng
- Chenggu Fruit Industry Technical Guidance Station, Chenggu, China
| | - Dekuan Ding
- Chenggu Fruit Industry Technical Guidance Station, Chenggu, China
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Paes de Melo B, Carpinetti PDA, Fraga OT, Rodrigues-Silva PL, Fioresi VS, de Camargos LF, Ferreira MFDS. Abiotic Stresses in Plants and Their Markers: A Practice View of Plant Stress Responses and Programmed Cell Death Mechanisms. PLANTS (BASEL, SWITZERLAND) 2022; 11:1100. [PMID: 35567101 PMCID: PMC9103730 DOI: 10.3390/plants11091100] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/06/2022] [Accepted: 04/07/2022] [Indexed: 05/12/2023]
Abstract
Understanding how plants cope with stress and the intricate mechanisms thereby used to adapt and survive environmental imbalances comprise one of the most powerful tools for modern agriculture. Interdisciplinary studies suggest that knowledge in how plants perceive, transduce and respond to abiotic stresses are a meaningful way to design engineered crops since the manipulation of basic characteristics leads to physiological remodeling for plant adaption to different environments. Herein, we discussed the main pathways involved in stress-sensing, signal transduction and plant adaption, highlighting biochemical, physiological and genetic events involved in abiotic stress responses. Finally, we have proposed a list of practice markers for studying plant responses to multiple stresses, highlighting how plant molecular biology, phenotyping and genetic engineering interconnect for creating superior crops.
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Affiliation(s)
- Bruno Paes de Melo
- Trait Development Department, LongPing HighTech, Cravinhos 14140-000, SP, Brazil
| | - Paola de Avelar Carpinetti
- Genetics and Breeding Program, Universidade Federal do Espírito Santo, Alegre 29500-000, ES, Brazil; (P.d.A.C.); (V.S.F.); (M.F.d.S.F.)
| | - Otto Teixeira Fraga
- Applied Biochemistry Program, Universidade Federal de Viçosa, Viçosa 36570-000, MG, Brazil;
| | | | - Vinícius Sartori Fioresi
- Genetics and Breeding Program, Universidade Federal do Espírito Santo, Alegre 29500-000, ES, Brazil; (P.d.A.C.); (V.S.F.); (M.F.d.S.F.)
| | | | - Marcia Flores da Silva Ferreira
- Genetics and Breeding Program, Universidade Federal do Espírito Santo, Alegre 29500-000, ES, Brazil; (P.d.A.C.); (V.S.F.); (M.F.d.S.F.)
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50
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Mildaziene V, Ivankov A, Sera B, Baniulis D. Biochemical and Physiological Plant Processes Affected by Seed Treatment with Non-Thermal Plasma. PLANTS (BASEL, SWITZERLAND) 2022; 11:856. [PMID: 35406836 PMCID: PMC9003542 DOI: 10.3390/plants11070856] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/16/2022] [Accepted: 03/17/2022] [Indexed: 12/22/2022]
Abstract
Among the innovative technologies being elaborated for sustainable agriculture, one of the most rapidly developing fields relies on the positive effects of non-thermal plasma (NTP) treatment on the agronomic performance of plants. A large number of recent publications have indicated that NTP effects are far more persistent and complex than it was supposed before. Knowledge of the molecular basis and the resulting outcomes of seed treatment with NTP is rapidly accumulating and requires to be analyzed and presented in a systematic way. This review focuses on the biochemical and physiological processes in seeds and plants affected by seed treatment with NTP and the resulting impact on plant metabolism, growth, adaptability and productivity. Wide-scale changes evolving at the epigenomic, transcriptomic, proteomic and metabolic levels are triggered by seed irradiation with NTP and contribute to changes in germination, early seedling growth, phytohormone amounts, metabolic and defense enzyme activity, secondary metabolism, photosynthesis, adaptability to biotic and abiotic stress, microbiome composition, and increased plant fitness, productivity and growth on a longer time scale. This review highlights the importance of these novel findings, as well as unresolved issues that remain to be investigated.
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Affiliation(s)
- Vida Mildaziene
- Faculty of Natural Sciences, Vytautas Magnus University, LT-44404 Kaunas, Lithuania;
| | - Anatolii Ivankov
- Faculty of Natural Sciences, Vytautas Magnus University, LT-44404 Kaunas, Lithuania;
| | - Bozena Sera
- Department of Environmental Ecology and Landscape Management, Faculty of Natural Sciences, Comenius University in Bratislava, 84215 Bratislava, Slovakia;
| | - Danas Baniulis
- Institute of Horticulture, Lithuanian Research Centre for Agriculture and Forestry, LT-54333 Babtai, Lithuania;
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