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Ye Q, Zheng L, Liu P, Liu Q, Ji T, Liu J, Gao Y, Liu L, Dong J, Wang T. The S-acylation cycle of transcription factor MtNAC80 influences cold stress responses in Medicago truncatula. THE PLANT CELL 2024; 36:2629-2651. [PMID: 38552172 DOI: 10.1093/plcell/koae103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 03/07/2024] [Indexed: 07/04/2024]
Abstract
S-acylation is a reversible post-translational modification catalyzed by protein S-acyltransferases (PATs), and acyl protein thioesterases (APTs) mediate de-S-acylation. Although many proteins are S-acylated, how the S-acylation cycle modulates specific biological functions in plants is poorly understood. In this study, we report that the S-acylation cycle of transcription factor MtNAC80 is involved in the Medicago truncatula cold stress response. Under normal conditions, MtNAC80 localized to membranes through MtPAT9-induced S-acylation. In contrast, under cold stress conditions, MtNAC80 translocated to the nucleus through de-S-acylation mediated by thioesterases such as MtAPT1. MtNAC80 functions in the nucleus by directly binding the promoter of the glutathione S-transferase gene MtGSTU1 and promoting its expression, which enables plants to survive under cold stress by removing excess malondialdehyde and H2O2. Our findings reveal an important function of the S-acylation cycle in plants and provide insight into stress response and tolerance mechanisms.
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Affiliation(s)
- Qinyi Ye
- College of Biological Sciences, China Agricultural University, Beijing 100193, China
- College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China
| | - Lihua Zheng
- College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Peng Liu
- College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Qianwen Liu
- College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Tuo Ji
- College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Jinling Liu
- College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yajuan Gao
- College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Li Liu
- College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Jiangli Dong
- College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Tao Wang
- College of Biological Sciences, China Agricultural University, Beijing 100193, China
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Huang J, Jia P, Zhong X, Guan X, Zhang H, Gao Z. Ectopic expression of the Arabidopsis mutant L3 NB-LRR receptor gene in Nicotiana benthamiana cells leads to cell death. Gene 2024; 906:148256. [PMID: 38341003 DOI: 10.1016/j.gene.2024.148256] [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: 11/17/2023] [Revised: 01/31/2024] [Accepted: 02/05/2024] [Indexed: 02/12/2024]
Abstract
Nucleotide-binding sites and leucine-rich repeat proteins (NLRs) act as critical intracellular immune receptors. Previous studies reported an Arabidopsis-resistant gene L3 (AT1G15890), which encoded a coiled-coil (CC) NLR that conferred cell death in bacteria; however, its function in planta remains unclear. This study describes a comprehensive structure-function analysis of L3 in Nicotiana benthamiana. The results of the transient assay showed that the L3 CC domain is sufficient for cell-death induction. The first 140 amino acid segment constituted the minimal function region that could cause cell death. The YFP-labeled L3 CC domain was localized to the plasma membrane, which was considered crucial for the function and self-interaction of the L3 CC domain. The results of point mutations analysis showed that L3 CC domain function is affected by mutations in some specific residues, and loss-of-function mutations in the CC domain affected the function of full-length L3. These study results offered considerable evidence to understand the activation mechanism of L3.
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Affiliation(s)
- Jianzhong Huang
- Key Laboratory of Chronic Diseases, Fuzhou Medical University, Fuzhou 344000, China; State Key Laboratory of Hybrid Rice, Key Laboratory for Research and Utilization of Heterosis in Indica Rice of Ministry of Agriculture, College of Life Sciences, Wuhan University, Wuhan 430072, China.
| | - Peng Jia
- Key Laboratory of Chronic Diseases, Fuzhou Medical University, Fuzhou 344000, China
| | - Xiaoju Zhong
- Key Laboratory of Chronic Diseases, Fuzhou Medical University, Fuzhou 344000, China
| | - Xiuying Guan
- Key Laboratory of Chronic Diseases, Fuzhou Medical University, Fuzhou 344000, China
| | - Hongbin Zhang
- Key Laboratory of Chronic Diseases, Fuzhou Medical University, Fuzhou 344000, China
| | - Zhiyong Gao
- State Key Laboratory of Hybrid Rice, Key Laboratory for Research and Utilization of Heterosis in Indica Rice of Ministry of Agriculture, College of Life Sciences, Wuhan University, Wuhan 430072, China.
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Chen X, Li WW, Gao J, Wu Z, Du J, Zhang X, Zhu YX. Arabidopsis PDLP7 modulated plasmodesmata function is related to BG10-dependent glucosidase activity required for callose degradation. Sci Bull (Beijing) 2024:S2095-9273(24)00312-8. [PMID: 38735789 DOI: 10.1016/j.scib.2024.04.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 04/01/2024] [Accepted: 04/25/2024] [Indexed: 05/14/2024]
Abstract
The microdomains of plasmodesmata, specialized cell-wall channels responsible for communications between neighboring cells, are composed of various plasmodesmata-located proteins (PDLPs) and lipids. Here, we found that, among all PDLP or homologous proteins in Arabidopsis thaliana genome, PDLP5 and PDLP7 possessed a C-terminal sphingolipid-binding motif, with the latter being the only member that was significantly upregulated upon turnip mosaic virus and cucumber mosaic virus infections. pdlp7 mutant plants exhibited significantly reduced callose deposition, larger plasmodesmata diameters, and faster viral transmission. These plants exhibited increased glucosidase activity but no change in callose synthase activity. PDLP7 interacted specifically with glucan endo-1,3-β-glucosidase 10 (BG10). Consistently, higher levels of callose deposition and slower virus transmission in bg10 mutants were observed. The interaction between PDLP7 and BG10 was found to depend on the presence of the Gnk2-homologous 1 (GnK2-1) domain at the N terminus of PDLP7 with Asp-35, Cys-42, Gln-44, and Leu-116 being essential. In vitro supplementation of callose was able to change the conformation of the GnK2-1 domain. Our data suggest that the GnK2-1 domain of PDLP7, in conjunction with callose and BG10, plays a key role in plasmodesmata opening and closure, which is necessary for intercellular movement of various molecules.
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Affiliation(s)
- Xin Chen
- State Key Laboratory of Protein and Plant Gene Research, College of Life Sciences, Peking University, Beijing 100871, China
| | - Wan-Wan Li
- State Key Laboratory of Protein and Plant Gene Research, College of Life Sciences, Peking University, Beijing 100871, China
| | - Jin Gao
- State Key Laboratory of Protein and Plant Gene Research, College of Life Sciences, Peking University, Beijing 100871, China
| | - Zhiguo Wu
- Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Juan Du
- Chinese Academy of Sciences, Institute of Zoology, State Key Lab Integrated Management Pest Insects, Beijing 100101, China
| | - XiaoMing Zhang
- Chinese Academy of Sciences, Institute of Zoology, State Key Lab Integrated Management Pest Insects, Beijing 100101, China
| | - Yu-Xian Zhu
- State Key Laboratory of Protein and Plant Gene Research, College of Life Sciences, Peking University, Beijing 100871, China; Institute for Advanced Studies, Wuhan University, Wuhan 430072, China.
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Tian Y, Zeng H, Wu JC, Dai GX, Zheng HP, Liu C, Wang Y, Zhou ZK, Tang DY, Deng GF, Tang WB, Liu XM, Lin JZ. The zinc finger protein DHHC09 S-acylates the kinase STRK1 to regulate H2O2 homeostasis and promote salt tolerance in rice. THE PLANT CELL 2024; 36:919-940. [PMID: 38180963 PMCID: PMC10980341 DOI: 10.1093/plcell/koae001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 12/06/2023] [Accepted: 12/29/2023] [Indexed: 01/07/2024]
Abstract
Soil salinity results in oxidative stress and heavy losses to crop production. The S-acylated protein SALT TOLERANCE RECEPTOR-LIKE CYTOPLASMIC KINASE 1 (STRK1) phosphorylates and activates CATALASE C (CatC) to improve rice (Oryza sativa L.) salt tolerance, but the molecular mechanism underlying its S-acylation involved in salt signal transduction awaits elucidation. Here, we show that the DHHC-type zinc finger protein DHHC09 S-acylates STRK1 at Cys5, Cys10, and Cys14 and promotes salt and oxidative stress tolerance by enhancing rice H2O2-scavenging capacity. This modification determines STRK1 targeting to the plasma membrane or lipid nanodomains and is required for its function. DHHC09 promotes salt signaling from STRK1 to CatC via transphosphorylation, and its deficiency impairs salt signal transduction. Our findings demonstrate that DHHC09 S-acylates and anchors STRK1 to the plasma membrane to promote salt signaling from STRK1 to CatC, thereby regulating H2O2 homeostasis and improving salt stress tolerance in rice. Moreover, overexpression of DHHC09 in rice mitigates grain yield loss under salt stress. Together, these results shed light on the mechanism underlying the role of S-acylation in RLK/RLCK-mediated salt signal transduction and provide a strategy for breeding highly salt-tolerant rice.
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Affiliation(s)
- Ye Tian
- Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, 410082, China
| | - Hui Zeng
- Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, 410082, China
| | - Ji-Cai Wu
- Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, 410082, China
| | - Gao-Xing Dai
- Rice Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, 530007, China
| | - He-Ping Zheng
- Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, 410082, China
| | - Cong Liu
- Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, 410082, China
- National Center of Technology Innovation for Saline-Alkali Tolerant Rice, Changsha, 410125, China
| | - Yan Wang
- Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, 410082, China
| | - Zheng-Kun Zhou
- Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, 410082, China
| | - Dong-Ying Tang
- Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, 410082, China
- National Center of Technology Innovation for Saline-Alkali Tolerant Rice, Changsha, 410125, China
| | - Guo-Fu Deng
- Rice Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, 530007, China
| | - Wen-Bang Tang
- State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Hunan Academy of Agricultural Sciences, Changsha, 410125, China
- National Center of Technology Innovation for Saline-Alkali Tolerant Rice, Changsha, 410125, China
| | - Xuan-Ming Liu
- Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, 410082, China
- National Center of Technology Innovation for Saline-Alkali Tolerant Rice, Changsha, 410125, China
| | - Jian-Zhong Lin
- Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, 410082, China
- National Center of Technology Innovation for Saline-Alkali Tolerant Rice, Changsha, 410125, China
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Liu F, Qu PY, Li JP, Yang LN, Geng YJ, Lu JY, Zhang Y, Li S. Arabidopsis protein S-acyl transferases positively mediate BR signaling through S-acylation of BSK1. Proc Natl Acad Sci U S A 2024; 121:e2322375121. [PMID: 38315835 PMCID: PMC10873554 DOI: 10.1073/pnas.2322375121] [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: 12/27/2023] [Accepted: 01/05/2024] [Indexed: 02/07/2024] Open
Abstract
Protein S-acyl transferases (PATs) catalyze S-acylation, a reversible post-translational modification critical for membrane association, trafficking, and stability of substrate proteins. Many plant proteins are potentially S-acylated but few have corresponding PATs identified. By using genomic editing, confocal imaging, pharmacological, genetic, and biochemical assays, we demonstrate that three Arabidopsis class C PATs positively regulate BR signaling through S-acylation of BRASSINOSTEROID-SIGNALING KINASE1 (BSK1). PAT19, PAT20, and PAT22 associate with the plasma membrane (PM) and the trans-Golgi network/early endosome (TGN/EE). Functional loss of all three genes results in a plethora of defects, indicative of reduced BR signaling and rescued by enhanced BR signaling. PAT19, PAT20, and PAT22 interact with BSK1 and are critical for the S-acylation of BSK1, and for BR signaling. The PM abundance of BSK1 was reduced by functional loss of PAT19, PAT20, and PAT22 whereas abolished by its S-acylation-deficient point mutations, suggesting a key role of S-acylation in its PM targeting. Finally, an active BR analog induces vacuolar trafficking and degradation of PAT19, PAT20, or PAT22, suggesting that the S-acylation of BSK1 by the three PATs serves as a negative feedback module in BR signaling.
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Affiliation(s)
- Fei Liu
- Frontiers Science Center for Cell Responses, College of Life Sciences, Nankai University, Tianjin300071, China
| | - Peng-Yu Qu
- Frontiers Science Center for Cell Responses, College of Life Sciences, Nankai University, Tianjin300071, China
| | - Ji-Peng Li
- College of Life Sciences, Shandong Agricultural University, Tai’an271018, China
| | - Li-Na Yang
- College of Life Sciences, Shandong Agricultural University, Tai’an271018, China
| | - Yuan-Jun Geng
- College of Life Sciences, Shandong Agricultural University, Tai’an271018, China
| | - Jin-Yu Lu
- Frontiers Science Center for Cell Responses, College of Life Sciences, Nankai University, Tianjin300071, China
| | - Yan Zhang
- Frontiers Science Center for Cell Responses, College of Life Sciences, Nankai University, Tianjin300071, China
| | - Sha Li
- College of Life Sciences, Shandong Agricultural University, Tai’an271018, China
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Shi S, Wang H, Zha W, Wu Y, Liu K, Xu D, He G, Zhou L, You A. Recent Advances in the Genetic and Biochemical Mechanisms of Rice Resistance to Brown Planthoppers ( Nilaparvata lugens Stål). Int J Mol Sci 2023; 24:16959. [PMID: 38069282 PMCID: PMC10707318 DOI: 10.3390/ijms242316959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 11/26/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
Rice (Oryza sativa L.) is the staple food of more than half of Earth's population. Brown planthopper (Nilaparvata lugens Stål, BPH) is a host-specific pest of rice responsible for inducing major losses in rice production. Utilizing host resistance to control N. lugens is considered to be the most cost-effective method. Therefore, the exploration of resistance genes and resistance mechanisms has become the focus of breeders' attention. During the long-term co-evolution process, rice has evolved multiple mechanisms to defend against BPH infection, and BPHs have evolved various mechanisms to overcome the defenses of rice plants. More than 49 BPH-resistance genes/QTLs have been reported to date, and the responses of rice to BPH feeding activity involve various processes, including MAPK activation, plant hormone production, Ca2+ flux, etc. Several secretory proteins of BPHs have been identified and are involved in activating or suppressing a series of defense responses in rice. Here, we review some recent advances in our understanding of rice-BPH interactions. We also discuss research progress in controlling methods of brown planthoppers, including cultural management, trap cropping, and biological control. These studies contribute to the establishment of green integrated management systems for brown planthoppers.
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Affiliation(s)
- Shaojie Shi
- Laboratory of Crop Molecular Breeding, Ministry of Agriculture and Rural Affairs, Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (S.S.); (H.W.)
| | - Huiying Wang
- Laboratory of Crop Molecular Breeding, Ministry of Agriculture and Rural Affairs, Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (S.S.); (H.W.)
| | - Wenjun Zha
- Laboratory of Crop Molecular Breeding, Ministry of Agriculture and Rural Affairs, Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (S.S.); (H.W.)
| | - Yan Wu
- Laboratory of Crop Molecular Breeding, Ministry of Agriculture and Rural Affairs, Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (S.S.); (H.W.)
| | - Kai Liu
- Laboratory of Crop Molecular Breeding, Ministry of Agriculture and Rural Affairs, Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (S.S.); (H.W.)
| | - Deze Xu
- Laboratory of Crop Molecular Breeding, Ministry of Agriculture and Rural Affairs, Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (S.S.); (H.W.)
| | - Guangcun He
- State Key Laboratory of Hybrid Rice, College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Lei Zhou
- Laboratory of Crop Molecular Breeding, Ministry of Agriculture and Rural Affairs, Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (S.S.); (H.W.)
- Hubei Hongshan Laboratory, Wuhan 430070, China
| | - Aiqing You
- Laboratory of Crop Molecular Breeding, Ministry of Agriculture and Rural Affairs, Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Food Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, China; (S.S.); (H.W.)
- Hubei Hongshan Laboratory, Wuhan 430070, China
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Deng Y, Chen Q, Qu Y. Protein S-Acyl Transferase GhPAT27 Was Associated with Verticillium wilt Resistance in Cotton. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11202758. [PMID: 36297782 PMCID: PMC9611673 DOI: 10.3390/plants11202758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 10/11/2022] [Accepted: 10/15/2022] [Indexed: 05/16/2023]
Abstract
Protein palmitoylation is an ability of the frame of the cell marker protein is one of the most notable reversible changes after translation. However, studies on protein palmitoylation in cotton have not yet been performed. In our current research, the PAT gene family was systematically identified and bioinformatically analyzed in G. arboreum, G. raimondii, G. barbadense and G. hirsutum, and 211 PAT genes were authenticated and classified into six subfamilies. Sixty-nine PAT genes were identified in upland cotton, mainly at the ends of its the 26 chromosomes of upland cotton. The majority of these genes are located in the nucleus of the plant. Gene structure analysis revealed that each member encodes a protein that which contains at least one DHHC structural domain. Cis-acting element analysis indicated that GhPATs genes are mainly involved in hormone production, light response and stress response. Gene expression pattern analysis indicated that most GhPATs genes were differentially expressed upon induction by pathogenic bacteria, drought, salt, hot and cold stresses, and some GhPATs could be induced by multiple abiotic stresses simultaneously. GhPATs genes showed different expression patterns in tissue-specific assays and were found to be preferentially expressed in roots, followed by expression in stems and leaves. Virus-induced gene silencing (VIGS) experiments showed that cotton was significantly less resistant to Verticillium dahliae when GhPAT27 was silenced. We conclude that the GhPAT27 gene, which mediates S-palmitoylation acetylation, may be involved in the regulation of upland cotton resistance to Verticillium wilt (VW). Overall, this work has provided a fundamental framework for understanding the latent capabilities of GhPATs and a solid foundation for molecular breeding and plant pathogen resistance in cotton.
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