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Kreynes AE, Yong Z, Liu XM, Wong DCJ, Castellarin SD, Ellis BE. Biological impacts of phosphomimic AtMYB75. PLANTA 2020; 251:60. [PMID: 32030477 DOI: 10.1007/s00425-020-03350-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Accepted: 01/27/2020] [Indexed: 05/04/2023]
Abstract
The phosphorylation status of MYB75 at T-131 affects protein stability, flavonoid profiles, and patterns of gene expression. The Arabidopsis transcription factor Myeloblastosis protein 75 (MYB75, AT1G56650) is known to act as a positive transcriptional regulator of genes required for flavonoid and anthocyanin biosynthesis. MYB75 was also shown to negatively regulate lignin and other secondary cell wall biosynthetic genes (Bhargava et al. in Plant Physiol 154(3):1428-1438, 2010). While transcriptional regulation of MYB75 has been described in numerous publications, little is known about post-translational control of MYB75 protein function. In a recent publication, light-induced activation of a MAP kinase (MPK4, AT4G01370) in Arabidopsis was reported to lead to MYB75 phosphorylation at two canonical MPK target sites, threonines, T-126 and T-131. This double phosphorylation event positively influenced MYB75 protein stability (Li et al. in Plant Cell 28(11):2866-2883, 2016). We have examined this phenomenon through use of phosphomutant forms of MYB75 and found that MYB75 is phosphorylated primarily at T-131, and that the phosphorylation of MYB75 recombinant protein in vitro can be catalyzed by multiple MAP kinases, including MPK3 (AT3G45640), MPK6 (AT2G43790), MPK4 and MPK11 (AT1G01560). We also demonstrate that MYB75 can bind to a large number of Arabidopsis MPK's in vitro, suggesting it could be a target of multiple signalling pathways. The impact of MYB75 phosphorylation at T-131 on the function of this transcription factor, in terms of localization, stability, and protein-protein interactions with known binding partners was examined in transgenic lines expressing phosphomimic and phosphonull versions of MYB75, to capture the behaviour of permanently phosphorylated and unphosphorylated MYB75 protein, respectively. In addition, we describe how ectopic over-expression of different phosphovariant forms of MYB75 (MYB75WT, MYB75T131A, and MYB75T131E) affects flavonoid biochemical profiles and global changes of gene expression in the corresponding transgenic Arabidopsis plants.
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Affiliation(s)
- Anna E Kreynes
- Michael Smith Laboratories, Department of Botany, and Wine Research Centre, University of British Columbia, Vancouver, British Columbia, Canada.
| | - Zhenhua Yong
- Michael Smith Laboratories, Department of Botany, and Wine Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Xiao-Min Liu
- Michael Smith Laboratories, Department of Botany, and Wine Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Darren C J Wong
- Michael Smith Laboratories, Department of Botany, and Wine Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Simone D Castellarin
- Michael Smith Laboratories, Department of Botany, and Wine Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Brian E Ellis
- Michael Smith Laboratories, Department of Botany, and Wine Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
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Ding H, Wu Y, Yuan G, Mo S, Chen Q, Xu X, Wu X, Ge C. In-depth proteome analysis reveals multiple pathways involved in tomato SlMPK1-mediated high-temperature responses. PROTOPLASMA 2020; 257:43-59. [PMID: 31359223 DOI: 10.1007/s00709-019-01419-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 07/11/2019] [Indexed: 06/10/2023]
Abstract
High temperature (HT) is one of the major environmental factors which limits plant growth and yield. The mitogen-activated protein kinase (MAPK) plays vital roles in environmental stress responses. However, the mechanisms triggered by MAPKs in plants in response to HT are still extremely limited. In this study, the proteomic data of differences between SlMPK1 RNA-interference mutant (SlMPK1i) and wild type and of tomato (Solanum lycopersicum) plants under HT stress using isobaric tags for relative and absolute quantitation (iTRAQ) was re-analyzed in depth. In total, 168 differently expressed proteins (DEPs) were identified in response to HT stress, including 38 DEPs only found in wild type, and 84 DEPs specifically observed in SlMPK1i after HT treatment. The majority of higher expression of 84 DEPs were annotated into photosynthesis, oxidation-reduction process, protein folding, translation, proteolysis, stress response, and amino acid biosynthetic process. More importantly, SlMPK1-mediated photosynthesis was confirmed by the physiological characterization of SlMPK1i with a higher level of photosynthetic capacity under HT stress. Overall, the results reveal a set of potential candidate proteins helping to further understand the intricate regulatory network regulated by SlMPK1 in response to HT.
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Affiliation(s)
- Haidong Ding
- Co-Innovation Center for Modern Production Technology of Grain Crops/Jiangsu Key Laboratory of Crop Genetics and Physiology, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, 225009, China.
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou, China.
| | - Yuan Wu
- Co-Innovation Center for Modern Production Technology of Grain Crops/Jiangsu Key Laboratory of Crop Genetics and Physiology, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, 225009, China
| | - Guibo Yuan
- Co-Innovation Center for Modern Production Technology of Grain Crops/Jiangsu Key Laboratory of Crop Genetics and Physiology, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, 225009, China
| | - Shuangrong Mo
- Co-Innovation Center for Modern Production Technology of Grain Crops/Jiangsu Key Laboratory of Crop Genetics and Physiology, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, 225009, China
| | - Qi Chen
- Co-Innovation Center for Modern Production Technology of Grain Crops/Jiangsu Key Laboratory of Crop Genetics and Physiology, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, 225009, China
| | - Xiaoying Xu
- Co-Innovation Center for Modern Production Technology of Grain Crops/Jiangsu Key Laboratory of Crop Genetics and Physiology, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Xiaoxia Wu
- Co-Innovation Center for Modern Production Technology of Grain Crops/Jiangsu Key Laboratory of Crop Genetics and Physiology, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Cailin Ge
- Co-Innovation Center for Modern Production Technology of Grain Crops/Jiangsu Key Laboratory of Crop Genetics and Physiology, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou, China
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Lau BYC, Othman A, Ramli US. Application of Proteomics Technologies in Oil Palm Research. Protein J 2018; 37:473-499. [DOI: 10.1007/s10930-018-9802-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Ding H, He J, Wu Y, Wu X, Ge C, Wang Y, Zhong S, Peiter E, Liang J, Xu W. The Tomato Mitogen-Activated Protein Kinase SlMPK1 Is as a Negative Regulator of the High-Temperature Stress Response. PLANT PHYSIOLOGY 2018; 177:633-651. [PMID: 29678861 PMCID: PMC6001329 DOI: 10.1104/pp.18.00067] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 03/27/2018] [Indexed: 05/19/2023]
Abstract
High-temperature (HT) stress is a major environmental stress that limits plant growth and development. MAPK cascades play key roles in plant growth and stress signaling, but their involvement in the HT stress response is poorly understood. Here, we describe a 47-kD MBP-phosphorylated protein (p47-MBPK) activated in tomato (Solanum lycopersicum) leaves under HT and identify it as SlMPK1 by tandem mass spectrometry analysis. Silencing of SlMPK1 in transgenic tomato plants resulted in enhanced tolerance to HT, while overexpression resulted in reduced tolerance. Proteomic analysis identified a set of proteins involved in antioxidant defense that are significantly more abundant in RNA interference-SlMPK1 plants than nontransgenic plants under HT stress. RNA interference-SlMPK1 plants also showed changes in membrane lipid peroxidation and antioxidant enzyme activities. Furthermore, using yeast two-hybrid screening, we identified a serine-proline-rich protein homolog, SlSPRH1, which interacts with SlMPK1 in yeast, in plant cells, and in vitro. We demonstrate that SlMPK1 can directly phosphorylate SlSPRH1. Furthermore, the serine residue serine-44 of SlSPRH1 is a crucial phosphorylation site in the SlMPK1-mediated antioxidant defense mechanism activated during HT stress. We also demonstrate that heterologous expression of SlSPRH1 in Arabidopsis (Arabidopsis thaliana) led to a decrease in thermotolerance and lower antioxidant capacity. Taken together, our results suggest that SlMPK1 is a negative regulator of thermotolerance in tomato plants. SlMPK1 acts by regulating antioxidant defense, and its substrate SlSPRH1 is involved in this pathway.
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Affiliation(s)
- Haidong Ding
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
| | - Jie He
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
| | - Yuan Wu
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
| | - Xiaoxia Wu
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
| | - Cailin Ge
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
| | - Yijun Wang
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
| | - Silin Zhong
- School of Life Sciences, Chinese University of Hong Kong, Shatin, NT, Hong Kong, China
| | - Edgar Peiter
- Plant Nutrition Laboratory, Institute of Agricultural and Nutritional Sciences, Faculty of Natural Sciences III, Martin Luther University Halle-Wittenberg, Halle (Saale) D-06099, Germany
| | - Jiansheng Liang
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
- Department of Biology, Southern University of Science and Technology, Shenzhen 518055, China
| | - Weifeng Xu
- Center for Plant Water Use and Nutrition Regulation and College of Life Sciences, Joint International Research Laboratory of Water and Nutrient in Crops, Fujian Agriculture and Forestry University, Jinshan Fuzhou 350002, China
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Liu Y, He C. A review of redox signaling and the control of MAP kinase pathway in plants. Redox Biol 2016; 11:192-204. [PMID: 27984790 PMCID: PMC5157795 DOI: 10.1016/j.redox.2016.12.009] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 12/08/2016] [Indexed: 02/02/2023] Open
Abstract
Mitogen-activated protein kinase (MAPK) cascades are evolutionarily conserved modules among eukaryotic species that range from yeast, plants, flies to mammals. In eukaryotic cells, reactive oxygen species (ROS) has both physiological and toxic effects. Both MAPK cascades and ROS signaling are involved in plant response to various biotic and abiotic stresses. It has been observed that not only can ROS induce MAPK activation, but also that disturbing MAPK cascades can modulate ROS production and responses. This review will discuss the potential mechanisms by which ROS may activate and/or regulate MAPK cascades in plants. The role of MAPK cascades and ROS signaling in regulating gene expression, stomatal function, and programmed cell death (PCD) is also discussed. In addition, the relationship between Rboh-dependent ROS production and MAPK activation in PAMP-triggered immunity will be reviewed.
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Affiliation(s)
- Yukun Liu
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, College of Forestry, Southwest Forestry University, 300 Bailong Si, Kunming 650224, Yunnan, People's Republic of China; Key Laboratory for Forest Genetic and Tree Improvement & Propagation in Universities of Yunnan Province, College of Forestry, Southwest Forestry University, 300 Bailong Si, Kunming 650224, Yunnan, People's Republic of China.
| | - Chengzhong He
- Key Laboratory for Forest Genetic and Tree Improvement & Propagation in Universities of Yunnan Province, College of Forestry, Southwest Forestry University, 300 Bailong Si, Kunming 650224, Yunnan, People's Republic of China
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Takáč T, Šamaj J. Advantages and limitations of shot-gun proteomic analyses on Arabidopsis plants with altered MAPK signaling. FRONTIERS IN PLANT SCIENCE 2015; 6:107. [PMID: 25763005 PMCID: PMC4340173 DOI: 10.3389/fpls.2015.00107] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Accepted: 02/09/2015] [Indexed: 05/27/2023]
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Abdallah C, Dumas-Gaudot E, Renaut J, Sergeant K. Gel-based and gel-free quantitative proteomics approaches at a glance. INTERNATIONAL JOURNAL OF PLANT GENOMICS 2012; 2012:494572. [PMID: 23213324 PMCID: PMC3508552 DOI: 10.1155/2012/494572] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Accepted: 10/12/2012] [Indexed: 05/06/2023]
Abstract
Two-dimensional gel electrophoresis (2-DE) is widely applied and remains the method of choice in proteomics; however, pervasive 2-DE-related concerns undermine its prospects as a dominant separation technique in proteome research. Consequently, the state-of-the-art shotgun techniques are slowly taking over and utilising the rapid expansion and advancement of mass spectrometry (MS) to provide a new toolbox of gel-free quantitative techniques. When coupled to MS, the shotgun proteomic pipeline can fuel new routes in sensitive and high-throughput profiling of proteins, leading to a high accuracy in quantification. Although label-based approaches, either chemical or metabolic, gained popularity in quantitative proteomics because of the multiplexing capacity, these approaches are not without drawbacks. The burgeoning label-free methods are tag independent and suitable for all kinds of samples. The challenges in quantitative proteomics are more prominent in plants due to difficulties in protein extraction, some protein abundance in green tissue, and the absence of well-annotated and completed genome sequences. The goal of this perspective assay is to present the balance between the strengths and weaknesses of the available gel-based and -free methods and their application to plants. The latest trends in peptide fractionation amenable to MS analysis are as well discussed.
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Affiliation(s)
- Cosette Abdallah
- Environment and Agro-Biotechnologies Department, Centre de Recherche Public-Gabriel Lippmann, 41 rue du Brill, 4422 Belvaux, Luxembourg
- UMR Agroécologie INRA 1347/Agrosup/Université de Bourgogne, Pôle Interactions Plantes Microorganismes ERL 6300 CNRS, Boite Postal 86510, 21065 Dijon Cedex, France
| | - Eliane Dumas-Gaudot
- UMR Agroécologie INRA 1347/Agrosup/Université de Bourgogne, Pôle Interactions Plantes Microorganismes ERL 6300 CNRS, Boite Postal 86510, 21065 Dijon Cedex, France
| | - Jenny Renaut
- Environment and Agro-Biotechnologies Department, Centre de Recherche Public-Gabriel Lippmann, 41 rue du Brill, 4422 Belvaux, Luxembourg
| | - Kjell Sergeant
- Environment and Agro-Biotechnologies Department, Centre de Recherche Public-Gabriel Lippmann, 41 rue du Brill, 4422 Belvaux, Luxembourg
- *Kjell Sergeant:
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Proteomic complex detection using sedimentation (ProCoDeS): screening for proteins in stable complexes and their candidate interaction partners. Biochem Soc Trans 2010; 38:923-7. [PMID: 20658978 DOI: 10.1042/bst0380923] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Over the last few years, our view of cellular organization has changed from one in which enzymes and proteins usually act independently to the situation at present where we commonly accept that many, if not all, enzymes act in close association with others. Co-precipitation using an antibody against a test protein is the standard assay for the identification of members of protein complexes [Musso, Zhang and Emili (2007) Chem. Rev. 107, 3585-3600]. The introduction of TAP (tandem affinity purification) tagging enhanced original approaches in order to analyse protein complexes on a larger scale with reduced false discoveries of interacting partners due to more efficient purification of complexes. However, this technique has some limitations as a high-throughput tool for systems biology: the requirement for genetic manipulation to express the tagged protein excludes studies of non-transformable organisms and intact tissue. In those cases where TAP is applicable, a considerable amount of work is required to generate the baits and to optimize experimental conditions. A technique developed in our laboratories, ProCoDeS (Proteomic Complex Detection using Sedimentation), focuses on the detection of endogenous complexes. Protein samples are separated by centrifugation and then different fractions from the resulting gradient are analysed using quantitative MS. The identification of possible protein partners is based on statistical analysis of the co-fractionation of proteins, without any need for purification of individual complexes. The prospects of ProCoDeS and similar techniques based on quantitative MS for measurement of protein complex composition are reviewed in the present article.
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Andreasson E, Ellis B. Convergence and specificity in the Arabidopsis MAPK nexus. TRENDS IN PLANT SCIENCE 2010; 15:106-13. [PMID: 20047850 DOI: 10.1016/j.tplants.2009.12.001] [Citation(s) in RCA: 151] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2009] [Revised: 12/01/2009] [Accepted: 12/07/2009] [Indexed: 05/04/2023]
Abstract
Although mitogen-activated protein kinase (MAPK) signal transduction cascades are known regulators of various aspects of plant biology, our knowledge of these systems has been largely restricted to a small subset of the MAPKs. However, global analyses are now revealing that many more of these kinases are probably engaged in modulating developmental and fitness adaptation processes in the plant kingdom. In this review, we show how these new findings are beginning to define the overall architecture of plant MAPK signaling, with a particular focus on the interplay between the terminal MPKs and their activators, inactivators and cellular targets.
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Affiliation(s)
- Erik Andreasson
- Department of Cell and Organism Biology, Lund University, SE-223 62 Lund, Sweden
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