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Hu X, Cheng J, Lu M, Fang T, Zhu Y, Li Z, Wang X, Wang Y, Guo Y, Yang S, Gong Z. Ca 2+-independent ZmCPK2 is inhibited by Ca 2+-dependent ZmCPK17 during drought response in maize. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2024; 66:1313-1333. [PMID: 38751035 DOI: 10.1111/jipb.13675] [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: 04/04/2024] [Accepted: 04/16/2024] [Indexed: 07/12/2024]
Abstract
Calcium oscillations are induced by different stresses. Calcium-dependent protein kinases (CDPKs/CPKs) are one major group of the plant calcium decoders that are involved in various processes including drought response. Some CPKs are calcium-independent. Here, we identified ZmCPK2 as a negative regulator of drought resistance by screening an overexpression transgenic maize pool. We found that ZmCPK2 does not bind calcium, and its activity is mainly inhibited during short term abscisic acid (ABA) treatment, and dynamically changed in prolonged treatment. Interestingly, ZmCPK2 interacts with and is inhibited by calcium-dependent ZmCPK17, a positive regulator of drought resistance, which is activated by ABA. ZmCPK17 could prevent the nuclear localization of ZmCPK2 through phosphorylation of ZmCPK2T60. ZmCPK2 interacts with and phosphorylates and activates ZmYAB15, a negative transcriptional factor for drought resistance. Our results suggest that drought stress-induced Ca2+ can be decoded directly by ZmCPK17 that inhibits ZmCPK2, thereby promoting plant adaptation to water deficit.
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Affiliation(s)
- Xiaoying Hu
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, Center for Crop Functional Genomics and Molecular Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Jinkui Cheng
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, Center for Crop Functional Genomics and Molecular Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Minmin Lu
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, Center for Crop Functional Genomics and Molecular Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Tingting Fang
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, Center for Crop Functional Genomics and Molecular Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Yujuan Zhu
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, Center for Crop Functional Genomics and Molecular Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Zhen Li
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, Center for Crop Functional Genomics and Molecular Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Xiqing Wang
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, Center for Crop Functional Genomics and Molecular Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Yu Wang
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, Center for Crop Functional Genomics and Molecular Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Yan Guo
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, Center for Crop Functional Genomics and Molecular Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Shuhua Yang
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, Center for Crop Functional Genomics and Molecular Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Zhizhong Gong
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, Center for Crop Functional Genomics and Molecular Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
- College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, 071002, China
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Wang B, Xue P, Zhang Y, Zhan X, Wu W, Yu P, Chen D, Fu J, Hong Y, Shen X, Sun L, Cheng S, Liu Q, Cao L. OsCPK12 phosphorylates OsCATA and OsCATC to regulate H 2O 2 homeostasis and improve oxidative stress tolerance in rice. PLANT COMMUNICATIONS 2024; 5:100780. [PMID: 38130060 PMCID: PMC10943579 DOI: 10.1016/j.xplc.2023.100780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 12/13/2023] [Accepted: 12/18/2023] [Indexed: 12/23/2023]
Abstract
Calcium-dependent protein kinases (CPKs), the best-characterized calcium sensors in plants, regulate many aspects of plant growth and development as well as plant adaptation to biotic and abiotic stresses. However, how CPKs regulate the antioxidant defense system remains largely unknown. We previously found that impaired function of OsCPK12 leads to oxidative stress in rice, with more H2O2, lower catalase (CAT) activity, and lower yield. Here, we explored the roles of OsCPK12 in oxidative stress tolerance in rice. Our results show that OsCPK12 interacts with and phosphorylates OsCATA and OsCATC at Ser11. Knockout of either OsCATA or OsCATC leads to an oxidative stress phenotype accompanied by higher accumulation of H2O2. Overexpression of the phosphomimetic proteins OsCATAS11D and OsCATCS11D in oscpk12-cr reduced the level of H2O2 accumulation. Moreover, OsCATAS11D and OsCATCS11D showed enhanced catalase activity in vivo and in vitro. OsCPK12-overexpressing plants exhibited higher CAT activity as well as higher tolerance to oxidative stress. Our findings demonstrate that OsCPK12 affects CAT enzyme activity by phosphorylating OsCATA and OsCATC at Ser11 to regulate H2O2 homeostasis, thereby mediating oxidative stress tolerance in rice.
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Affiliation(s)
- Beifang Wang
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 311400, China; Northern Rice Research Center of Bao Qing, Shuangyashan 155600, China; Zhejiang Key Laboratory of Super Rice Research, China National Rice Research Institute, Hangzhou 311400, China
| | - Pao Xue
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 311400, China
| | - Yingxin Zhang
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 311400, China
| | - Xiaodeng Zhan
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 311400, China
| | - Weixun Wu
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 311400, China
| | - Ping Yu
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 311400, China
| | - Daibo Chen
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 311400, China
| | - Junlin Fu
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 311400, China
| | - Yongbo Hong
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 311400, China
| | - Xihong Shen
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 311400, China
| | - Lianping Sun
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 311400, China
| | - Shihua Cheng
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 311400, China.
| | - Qunen Liu
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 311400, China.
| | - Liyong Cao
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 311400, China; Northern Rice Research Center of Bao Qing, Shuangyashan 155600, China; Zhejiang Key Laboratory of Super Rice Research, China National Rice Research Institute, Hangzhou 311400, China.
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3
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Wang C, Luan S. Calcium homeostasis and signaling in plant immunity. CURRENT OPINION IN PLANT BIOLOGY 2024; 77:102485. [PMID: 38043138 DOI: 10.1016/j.pbi.2023.102485] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 10/27/2023] [Accepted: 10/30/2023] [Indexed: 12/05/2023]
Abstract
Calcium (Ca2+) signaling consists of three steps: (1) initiation of a change in cellular Ca2+ concentration in response to a stimulus, (2) recognition of the change through direct binding of Ca2+ by its sensors, (3) transduction of the signal to elicit downstream responses. Recent studies have uncovered a central role for Ca2+ signaling in both layers of immune responses initiated by plasma membrane (PM) and intracellular receptors, respectively. These advances in our understanding are attributed to several lines of research, including invention of genetically-encoded Ca2+ reporters for the recording of intracellular Ca2+ signals, identification of Ca2+ channels and their gating mechanisms, and functional analysis of Ca2+ binding proteins (Ca2+ sensors). This review analyzes the recent literature that illustrates the importance of Ca2+ homeostasis and signaling in plant innate immunity, featuring intricate Ca2+dependent positive and negative regulations.
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Affiliation(s)
- Chao Wang
- Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720, USA
| | - Sheng Luan
- Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720, USA.
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4
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Liese A, Eichstädt B, Lederer S, Schulz P, Oehlschläger J, Matschi S, Feijó JA, Schulze WX, Konrad KR, Romeis T. Imaging of plant calcium-sensor kinase conformation monitors real time calcium-dependent decoding in planta. THE PLANT CELL 2024; 36:276-297. [PMID: 37433056 PMCID: PMC11210078 DOI: 10.1093/plcell/koad196] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 06/14/2023] [Accepted: 07/10/2023] [Indexed: 07/13/2023]
Abstract
Changes in cytosolic calcium (Ca2+) concentration are among the earliest reactions to a multitude of stress cues. While a plethora of Ca2+-permeable channels may generate distinct Ca2+ signatures and contribute to response specificities, the mechanisms by which Ca2+ signatures are decoded are poorly understood. Here, we developed a genetically encoded Förster resonance energy transfer (FRET)-based reporter that visualizes the conformational changes in Ca2+-dependent protein kinases (CDPKs/CPKs). We focused on two CDPKs with distinct Ca2+-sensitivities, highly Ca2+-sensitive Arabidopsis (Arabidopsis thaliana) AtCPK21 and rather Ca2+-insensitive AtCPK23, to report conformational changes accompanying kinase activation. In tobacco (Nicotiana tabacum) pollen tubes, which naturally display coordinated spatial and temporal Ca2+ fluctuations, CPK21-FRET, but not CPK23-FRET, reported oscillatory emission ratio changes mirroring cytosolic Ca2+ changes, pointing to the isoform-specific Ca2+-sensitivity and reversibility of the conformational change. In Arabidopsis guard cells, CPK21-FRET-monitored conformational dynamics suggest that CPK21 serves as a decoder of signal-specific Ca2+ signatures in response to abscisic acid and the flagellin peptide flg22. Based on these data, CDPK-FRET is a powerful approach for tackling real-time live-cell Ca2+ decoding in a multitude of plant developmental and stress responses.
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Affiliation(s)
- Anja Liese
- Department for Biochemistry of Plant Interactions, Leibniz Institute of Plant Biochemistry, D-06120 Halle (Saale), Germany
- Dahlem Centre of Plant Sciences, Freie Universität Berlin, D-14195 Berlin, Germany
| | - Bernadette Eichstädt
- Dahlem Centre of Plant Sciences, Freie Universität Berlin, D-14195 Berlin, Germany
| | - Sarah Lederer
- Department for Biochemistry of Plant Interactions, Leibniz Institute of Plant Biochemistry, D-06120 Halle (Saale), Germany
| | - Philipp Schulz
- Dahlem Centre of Plant Sciences, Freie Universität Berlin, D-14195 Berlin, Germany
| | - Jan Oehlschläger
- Department for Biochemistry of Plant Interactions, Leibniz Institute of Plant Biochemistry, D-06120 Halle (Saale), Germany
| | - Susanne Matschi
- Department for Biochemistry of Plant Interactions, Leibniz Institute of Plant Biochemistry, D-06120 Halle (Saale), Germany
| | - José A Feijó
- Department of Cell Biology & Molecular Genetics, University of Maryland, 2136 Bioscience Research Bldg, College Park, MD 20742-5815, USA
| | - Waltraud X Schulze
- Plant Systems Biology, Universität Hohenheim, D-70593 Stuttgart, Germany
| | - Kai R Konrad
- Julius-Von-Sachs Institute for Biosciences, Julius Maximilians Universität Würzburg, D-97082 Würzburg, Germany
| | - Tina Romeis
- Department for Biochemistry of Plant Interactions, Leibniz Institute of Plant Biochemistry, D-06120 Halle (Saale), Germany
- Dahlem Centre of Plant Sciences, Freie Universität Berlin, D-14195 Berlin, Germany
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5
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Fan W, Liao X, Tan Y, Wang X, Schroeder JI, Li Z. Arabidopsis PLANT U-BOX44 down-regulates osmotic stress signaling by mediating Ca2+-DEPENDENT PROTEIN KINASE4 degradation. THE PLANT CELL 2023; 35:3870-3888. [PMID: 37338064 PMCID: PMC10533340 DOI: 10.1093/plcell/koad173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 04/20/2023] [Accepted: 06/19/2023] [Indexed: 06/21/2023]
Abstract
Calcium (Ca2+)-dependent protein kinases (CPKs) are essential regulators of plant responses to diverse environmental stressors, including osmotic stress. CPKs are activated by an increase in intracellular Ca2+ levels triggered by osmotic stress. However, how the levels of active CPK protein are dynamically and precisely regulated has yet to be determined. Here, we demonstrate that NaCl/mannitol-induced osmotic stress promoted the accumulation of CPK4 protein by disrupting its 26S proteasome-mediated CPK4 degradation in Arabidopsis (Arabidopsis thaliana). We isolated PLANT U-BOX44 (PUB44), a U-box type E3 ubiquitin ligase that ubiquitinates CPK4 and triggers its degradation. A calcium-free or kinase-inactive CPK4 variant was preferentially degraded compared to the Ca2+-bound active form of CPK4. Furthermore, PUB44 exhibited a CPK4-dependent negative role in the response of plants to osmotic stress. Osmotic stress induced the accumulation of CPK4 protein by inhibiting PUB44-mediated CPK4 degradation. The present findings reveal a mechanism for regulating CPK protein levels and establish the relevance of PUB44-dependent CPK4 regulation in modulating plant osmotic stress responses, providing insights into osmotic stress signal transduction mechanisms.
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Affiliation(s)
- Wei Fan
- Joint Center for Single Cell Biology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Xiliang Liao
- Joint Center for Single Cell Biology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yanqiu Tan
- Joint Center for Single Cell Biology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Xiruo Wang
- Joint Center for Single Cell Biology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Julian I Schroeder
- Department of Cell and Developmental Biology, School of Biological Sciences, University of California, San Diego, La Jolla, CA 92093, USA
| | - Zixing Li
- Joint Center for Single Cell Biology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- Department of Cell and Developmental Biology, School of Biological Sciences, University of California, San Diego, La Jolla, CA 92093, USA
- Shanghai Collaborative Innovation Center of Agri-Seeds, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
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6
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Xin X, Wei D, Lei L, Zheng H, Wallace IS, Li S, Gu Y. CALCIUM-DEPENDENT PROTEIN KINASE32 regulates cellulose biosynthesis through post-translational modification of cellulose synthase. THE NEW PHYTOLOGIST 2023; 239:2212-2224. [PMID: 37431066 DOI: 10.1111/nph.19106] [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: 02/14/2023] [Accepted: 06/05/2023] [Indexed: 07/12/2023]
Abstract
Cellulose is an essential component of plant cell walls and an economically important source of food, paper, textiles, and biofuel. Despite its economic and biological significance, the regulation of cellulose biosynthesis is poorly understood. Phosphorylation and dephosphorylation of cellulose synthases (CESAs) were shown to impact the direction and velocity of cellulose synthase complexes (CSCs). However, the protein kinases that phosphorylate CESAs are largely unknown. We conducted research in Arabidopsis thaliana to reveal protein kinases that phosphorylate CESAs. In this study, we used yeast two-hybrid, protein biochemistry, genetics, and live-cell imaging to reveal the role of calcium-dependent protein kinase32 (CPK32) in the regulation of cellulose biosynthesis in A. thaliana. We identified CPK32 using CESA3 as a bait in a yeast two-hybrid assay. We showed that CPK32 phosphorylates CESA3 while it interacts with both CESA1 and CESA3. Overexpressing functionally defective CPK32 variant and phospho-dead mutation of CESA3 led to decreased motility of CSCs and reduced crystalline cellulose content in etiolated seedlings. Deregulation of CPKs impacted the stability of CSCs. We uncovered a new function of CPKs that regulates cellulose biosynthesis and a novel mechanism by which phosphorylation regulates the stability of CSCs.
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Affiliation(s)
- Xiaoran Xin
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, 16802, USA
| | - Donghui Wei
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, 16802, USA
| | - Lei Lei
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, 16802, USA
| | - Haiyan Zheng
- Center for Advanced Biotechnology and Medicine, Rutgers University, Piscataway, NJ, 08854, USA
| | - Ian S Wallace
- Department of Biochemistry and Molecular Biology, University of Nevada, Reno, NV, 89557, USA
| | - Shundai Li
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, 16802, USA
| | - Ying Gu
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, 16802, USA
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Veremeichik GN, Bulgakov DV, Konnova YA, Brodovskaya EV, Grigorchuk VP, Bulgakov VP. Proteome-Level Investigation of Vitis amurensis Calli Transformed with a Constitutively Active, Ca 2+-Independent Form of the Arabidopsis AtCPK1 Gene. Int J Mol Sci 2023; 24:13184. [PMID: 37685990 PMCID: PMC10487732 DOI: 10.3390/ijms241713184] [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: 06/29/2023] [Revised: 08/17/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
Calcium-dependent protein kinases (CDPKs) are one of the main Ca2+ decoders in plants. Among them, Arabidopsis thaliana AtCPK1 is one of the most studied CDPK genes as a positive regulator of plant responses to biotic and abiotic stress. The mutated form of AtCPK1, in which the autoinhibitory domain is inactivated (AtCPK1-Ca), provides constitutive kinase activity by mimicking a stress-induced increase in the Ca2+ flux. In the present study, we performed a proteomic analysis of Vitis amurensis calli overexpressing the AtCPK1-Ca form using untransformed calli as a control. In our previous studies, we have shown that the overexpression of this mutant form leads to the activation of secondary metabolism in plant cell cultures, including an increase in resveratrol biosynthesis in V. amurensis cell cultures. We analyzed upregulated and downregulated proteins in control and transgenic callus cultures using two-dimensional gel electrophoresis, and Matrix-assisted laser desorption and ionization time-of-flight mass spectrometry (MALDI-TOF). In calli transformed with AtCPK1-Ca, an increased amounts of pathogenesis-related proteins were found. A quantitative real-time PCR analysis confirmed this result.
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Affiliation(s)
- Galina N. Veremeichik
- Federal Scientific Centre of the East Asia Terrestrial Biodiversity of the Far East Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russia; (D.V.B.); (V.P.G.); (V.P.B.)
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Kilburn R, Fedosejevs ET, Mehta D, Soleimani F, Ghahremani M, Monaghan J, Thelen JJ, Uhrig RG, Snedden WA, Plaxton WC. Substrate profiling of the Arabidopsis Ca 2+-dependent protein kinase AtCPK4 and its Ricinus communis ortholog RcCDPK1. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 331:111675. [PMID: 36931565 DOI: 10.1016/j.plantsci.2023.111675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 03/10/2023] [Accepted: 03/12/2023] [Indexed: 06/18/2023]
Abstract
AtCPK4 and AtCPK11 are Arabidopsis thaliana Ca2+-dependent protein kinase (CDPK) paralogs that have been reported to positively regulate abscisic acid (ABA) signal transduction by phosphorylating ABA-responsive transcription factor-4 (AtABF4). By contrast, RcCDPK1, their closest Ricinus communis ortholog, participates in the control of anaplerotic carbon flux in developing castor oil seeds by catalyzing inhibitory phosphorylation of bacterial-type phosphoenolpyruvate carboxylase at Ser451. LC-MS/MS revealed that AtCPK4 and RcCDPK1 transphosphorylated several common, conserved residues of AtABF4 and its castor ortholog, TRANSCRIPTION FACTOR RESPONSIBLE FOR ABA REGULATON. Arabidopsis atcpk4/atcpk11 mutants displayed an ABA-insensitive phenotype that corroborated the involvement of AtCPK4/11 in ABA signaling. A kinase-client assay was employed to identify additional AtCPK4/RcCDPK1 targets. Both CDPKs were separately incubated with a library of 2095 peptides representative of Arabidopsis protein phosphosites; five overlapping targets were identified including PLANT INTRACELLULAR RAS-GROUP-RELATED LEUCINE-RICH REPEAT PROTEIN-9 (AtPIRL9) and the E3-ubiquitin ligase ARABIDOPSIS TOXICOS EN LEVADURA 6 (AtATL6). AtPIRL9 and AtATL6 residues phosphorylated by AtCPK4/RcCDPK1 conformed to a CDPK recognition motif that was conserved amongst their respective orthologs. Collectively, this study provides evidence for novel AtCPK4/RcCDPK1 substrates, which may help to expand regulatory networks linked to Ca2+- and ABA-signaling, immune responses, and central carbon metabolism.
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Affiliation(s)
- Ryan Kilburn
- Department of Biology, Queen's University, Kingston, Ontario, Canada K7L 3N6
| | - Eric T Fedosejevs
- Department of Biochemistry, Christopher S. Bond Life Sciences Center, University of Missouri, 1201 Rollins Street, Columbia, MO 65211, USA
| | - Devang Mehta
- Department of Biological Sciences, University of Alberta, 11455 Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2E9
| | - Faranak Soleimani
- Department of Biology, Queen's University, Kingston, Ontario, Canada K7L 3N6
| | - Mina Ghahremani
- Department of Biology, Queen's University, Kingston, Ontario, Canada K7L 3N6
| | - Jacqueline Monaghan
- Department of Biology, Queen's University, Kingston, Ontario, Canada K7L 3N6
| | - Jay J Thelen
- Department of Biochemistry, Christopher S. Bond Life Sciences Center, University of Missouri, 1201 Rollins Street, Columbia, MO 65211, USA
| | - R Glen Uhrig
- Department of Biological Sciences, University of Alberta, 11455 Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2E9
| | - Wayne A Snedden
- Department of Biology, Queen's University, Kingston, Ontario, Canada K7L 3N6
| | - William C Plaxton
- Department of Biology, Queen's University, Kingston, Ontario, Canada K7L 3N6.
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9
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Structural determinants of REMORIN nanodomain formation in anionic membranes. Biophys J 2022:S0006-3495(22)03964-9. [PMID: 36582138 DOI: 10.1016/j.bpj.2022.12.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 12/02/2022] [Accepted: 12/27/2022] [Indexed: 12/30/2022] Open
Abstract
Remorins are a family of multigenic plasma membrane phosphoproteins involved in biotic and abiotic plant interaction mechanisms, partnering in molecular signaling cascades. Signaling activity of remorins depends on their phosphorylation states and subsequent clustering into nanosized membrane domains. The presence of a coiled-coil domain and a C-terminal domain is crucial to anchor remorins to negatively charged membrane domains; however, the exact role of the N-terminal intrinsically disordered domain (IDD) on protein clustering and lipid interactions is largely unknown. Here, we combine chemical biology and imaging approaches to study the partitioning of group 1 remorin into anionic model membranes mimicking the inner leaflet of the plant plasma membrane. Using reconstituted membranes containing a mix of saturated and unsaturated phosphatidylcholine, phosphatidylinositol phosphates, and sterol, we investigate the clustering of remorins to the membrane and monitor the formation of nanosized membrane domains. REM1.3 promoted membrane nanodomain organization on the exposed external leaflet of both spherical lipid vesicles and flat supported lipid bilayers. Our results reveal that REM1.3 drives a mechanism allowing lipid reorganization, leading to the formation of remorin-enriched nanodomains. Phosphorylation of the N-terminal IDD by the calcium protein kinase CPK3 influences this clustering and can lead to the formation of smaller and more disperse domains. Our work reveals the phosphate-dependent involvement of the N-terminal IDD in the remorin-membrane interaction process by driving structural rearrangements at lipid-water interfaces.
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10
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Yang Z, Yuan L, Zhu H, Jiang J, Yang H, Li L. Small RNA profiling reveals the involvement of microRNA-mediated gene regulation in response to symbiosis in raspberry. Front Microbiol 2022; 13:1082494. [PMID: 36620006 PMCID: PMC9810812 DOI: 10.3389/fmicb.2022.1082494] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 11/30/2022] [Indexed: 12/24/2022] Open
Abstract
Dark septate endophytes (DSEs) can form reciprocal symbioses with most terrestrial plants, providing them with mineral nutrients in exchange for photosynthetic products. Although the mechanism of plant-DSEs is well understood at the transcriptional level, little is known about their post-transcriptional regulation, and microRNAs (miRNAs) for the symbiotic process of DSE infestation of raspberry have not been identified. In this study, we comprehensively identified the miRNAs of DSE-infested raspberry symbiosis using Illumina sequencing. A total of 361 known miRNAs and 95 novel miRNAs were identified in the roots. Similar to other dicotyledons, most of the identified raspberry miRNAs were 21 nt in length. Thirty-seven miRNAs were differentially expressed during colonization after inoculation with Phialocephala fortinii F5, suggesting a possible role for these miRNAs in the symbiotic process. Notably, two miRNAs (miR171h and miR396) previously reported to be responsive to symbiotic processes in alfalfa also had altered expression during raspberry symbiosis. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses suggests that miRNAs are mainly involved in regulatory mechanisms, such as biological processes, cellular metabolic processes, biosynthesis of secondary metabolites, plant-pathogen interactions, and phytohormone signaling pathways. This study revealed the potential conservation of miRNA-mediated post-transcriptional regulation in symbiotic processes among plants and provides some novel miRNAs for understanding the regulatory mechanisms of DSE-raspberry symbiosis.
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Affiliation(s)
- Zhiyu Yang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin, China,College of Life Science, Northeast Forestry University, Harbin, China
| | - Lianmei Yuan
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin, China,College of Life Science, Northeast Forestry University, Harbin, China
| | - Haifeng Zhu
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin, China,College of Life Science, Northeast Forestry University, Harbin, China
| | - Jing Jiang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin, China,College of Life Science, Northeast Forestry University, Harbin, China
| | - Hongyi Yang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration (Northeast Forestry University), Ministry of Education, Harbin, China,College of Life Science, Northeast Forestry University, Harbin, China,*Correspondence: Hongyi Yang,
| | - Lili Li
- Institute of Forestry Science of Heilongjiang Province, Harbin, China,Lili Li,
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11
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Li H, Zhang Y, Wu C, Bi J, Chen Y, Jiang C, Cui M, Chen Y, Hou X, Yuan M, Xiong L, Yang Y, Xie K. Fine-tuning OsCPK18/OsCPK4 activity via genome editing of phosphorylation motif improves rice yield and immunity. PLANT BIOTECHNOLOGY JOURNAL 2022; 20:2258-2271. [PMID: 35984919 PMCID: PMC9674324 DOI: 10.1111/pbi.13905] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 07/27/2022] [Accepted: 07/27/2022] [Indexed: 06/15/2023]
Abstract
Plants have evolved complex signalling networks to regulate growth and defence responses under an ever-changing environment. However, the molecular mechanisms underlying the growth-defence tradeoff are largely unclear. We previously reported that rice CALCIUM-DEPENDENT PROTEIN KINASE 18 (OsCPK18) and MITOGEN-ACTIVATED PROTEIN KINASE 5 (OsMPK5) mutually phosphorylate each other and that OsCPK18 phosphorylates and positively regulates OsMPK5 to suppress rice immunity. In this study, we found that OsCPK18 and its paralog OsCPK4 positively regulate plant height and yield-related traits. Further analysis reveals that OsCPK18 and OsMPK5 synergistically regulate defence-related genes but differentially regulate development-related genes. In vitro and in vivo kinase assays demonstrated that OsMPK5 phosphorylates C-terminal threonine (T505) and serine (S512) residues of OsCPK18 and OsCPK4, respectively. The kinase activity of OsCPK18T505D , in which T505 was replaced by aspartic acid to mimic T505 phosphorylation, displayed less calcium sensitivity than that of wild-type OsCPK18. Interestingly, editing the MAPK phosphorylation motif in OsCPK18 and its paralog OsCPK4, which deprives OsMPK5-mediated phosphorylation but retains calcium-dependent activation of kinase activity, simultaneously increases rice yields and immunity. This editing event also changed the last seven amino acid residues of OsCPK18 and attenuated its binding with OsMPK5. This study presents a new regulatory circuit that fine tunes the growth-defence tradeoff by modulating OsCPK18/4 activity and suggests that CRISPR/Cas9-mediated engineering phosphorylation pathways could simultaneously improve crop yield and immunity.
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Affiliation(s)
- Hong Li
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhanChina
- Hubei Key Laboratory of Plant PathologyHuazhong Agricultural UniversityWuhanChina
- Shenzhen Institute of Nutrition and HealthHuazhong Agricultural UniversityWuhanChina
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhenChina
| | - Yun Zhang
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhanChina
- Hubei Key Laboratory of Plant PathologyHuazhong Agricultural UniversityWuhanChina
| | - Caiyun Wu
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhanChina
- Hubei Key Laboratory of Plant PathologyHuazhong Agricultural UniversityWuhanChina
| | - Jinpeng Bi
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhanChina
- Hubei Key Laboratory of Plant PathologyHuazhong Agricultural UniversityWuhanChina
| | - Yache Chen
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhanChina
- Hubei Key Laboratory of Plant PathologyHuazhong Agricultural UniversityWuhanChina
| | - Changjin Jiang
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhanChina
- Hubei Key Laboratory of Plant PathologyHuazhong Agricultural UniversityWuhanChina
| | - Miaomiao Cui
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhanChina
- Hubei Key Laboratory of Plant PathologyHuazhong Agricultural UniversityWuhanChina
| | - Yuedan Chen
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhanChina
- Hubei Key Laboratory of Plant PathologyHuazhong Agricultural UniversityWuhanChina
| | - Xin Hou
- State Key Laboratory of Hybrid RiceWuhan UniversityWuhanChina
| | - Meng Yuan
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhanChina
| | - Lizhong Xiong
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhanChina
| | - Yinong Yang
- Department of Plant Pathology and Environmental Microbiology, The Huck Institutes of Life SciencesThe Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA
| | - Kabin Xie
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhanChina
- Hubei Key Laboratory of Plant PathologyHuazhong Agricultural UniversityWuhanChina
- Shenzhen Institute of Nutrition and HealthHuazhong Agricultural UniversityWuhanChina
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhenChina
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12
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Parmagnani AS, Maffei ME. Calcium Signaling in Plant-Insect Interactions. PLANTS (BASEL, SWITZERLAND) 2022; 11:2689. [PMID: 36297718 PMCID: PMC9609891 DOI: 10.3390/plants11202689] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/09/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
In plant-insect interactions, calcium (Ca2+) variations are among the earliest events associated with the plant perception of biotic stress. Upon herbivory, Ca2+ waves travel long distances to transmit and convert the local signal to a systemic defense program. Reactive oxygen species (ROS), Ca2+ and electrical signaling are interlinked to form a network supporting rapid signal transmission, whereas the Ca2+ message is decoded and relayed by Ca2+-binding proteins (including calmodulin, Ca2+-dependent protein kinases, annexins and calcineurin B-like proteins). Monitoring the generation of Ca2+ signals at the whole plant or cell level and their long-distance propagation during biotic interactions requires innovative imaging techniques based on sensitive sensors and using genetically encoded indicators. This review summarizes the recent advances in Ca2+ signaling upon herbivory and reviews the most recent Ca2+ imaging techniques and methods.
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13
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Bredow M, Monaghan J. Cross-kingdom regulation of calcium- and/or calmodulin-dependent protein kinases by phospho-switches that relieve autoinhibition. CURRENT OPINION IN PLANT BIOLOGY 2022; 68:102251. [PMID: 35767936 DOI: 10.1016/j.pbi.2022.102251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 05/04/2022] [Accepted: 05/26/2022] [Indexed: 06/15/2023]
Abstract
Mechanisms to sense and respond to calcium have evolved in all organisms. Calmodulin is a universal calcium sensor across eukaryotes that directly binds calcium and associates with many downstream signal transducers including protein kinases. All eukaryotes encode calcium-dependent and/or calmodulin-dependent kinases, however there are distinct protein families across kingdoms. Here, we compare the activation mechanisms of calmodulin-dependent protein kinases (CaMKs), calcium- and calmodulin-dependent protein kinases (CCaMKs) and calcium-dependent protein kinases (CDPKs), noting striking similarities regarding phosphorylation in a regulatory segment known as the autoinhibitory junction. We thus propose that conserved regulation by phosphorylation underlies the activation of calcium-responsive proteins from different kingdoms.
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Affiliation(s)
- Melissa Bredow
- Department of Plant Pathology and Microbiology, Iowa State University, Ames IA, USA.
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14
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Wang R, Himschoot E, Chen J, Boudsocq M, Geelen D, Friml J, Beeckman T, Vanneste S. Constitutive Active CPK30 Interferes With Root Growth and Endomembrane Trafficking in Arabidopsis thaliana. FRONTIERS IN PLANT SCIENCE 2022; 13:862398. [PMID: 35783951 PMCID: PMC9245594 DOI: 10.3389/fpls.2022.862398] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 05/02/2022] [Indexed: 06/15/2023]
Abstract
Calcium-dependent protein kinases (CPK) are key components of a wide array of signaling pathways, translating stress and nutrient signaling into the modulation of cellular processes such as ion transport and transcription. However, not much is known about CPKs in endomembrane trafficking. Here, we screened for CPKs that impact on root growth and gravitropism, by overexpressing constitutively active forms of CPKs under the control of an inducible promoter in Arabidopsis thaliana. We found that inducible overexpression of an constitutive active CPK30 (CA-CPK30) resulted in a loss of root gravitropism and ectopic auxin accumulation in the root tip. Immunolocalization revealed that CA-CPK30 roots have reduced PIN protein levels, PIN1 polarity defects and impaired Brefeldin A (BFA)-sensitive trafficking. Moreover, FM4-64 uptake was reduced, indicative of a defect in endocytosis. The effects on BFA-sensitive trafficking were not specific to PINs, as BFA could not induce aggregation of ARF1- and CHC-labeled endosomes in CA-CPK30. Interestingly, the interference with BFA-body formation, could be reverted by increasing the extracellular pH, indicating a pH-dependence of this CA-CPK30 effect. Altogether, our data reveal an important role for CPK30 in root growth regulation and endomembrane trafficking in Arabidopsis thaliana.
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Affiliation(s)
- Ren Wang
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Ellie Himschoot
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Jian Chen
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Marie Boudsocq
- Université Paris-Saclay, CNRS, INRAE, Univ. Evry, Institute of Plant Sciences Paris-Saclay (IPS2), Orsay, France
- Université de Paris, Institute of Plant Sciences Paris-Saclay (IPS2), Orsay, France
| | - Danny Geelen
- Department of Plants and Crops, Ghent University, Ghent, Belgium
| | - Jiří Friml
- Institute of Science and Technology Austria, Klosterneuburg, Austria
| | - Tom Beeckman
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
| | - Steffen Vanneste
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
- VIB Center for Plant Systems Biology, Ghent, Belgium
- Department of Plants and Crops, Ghent University, Ghent, Belgium
- Lab of Plant Growth Analysis, Ghent University Global Campus, Incheon, South Korea
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15
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Dekomah SD, Wang Y, Qin T, Xu D, Sun C, Yao P, Liu Y, Bi Z, Bai J. Identification and Expression Analysis of Calcium-Dependent Protein Kinases Gene Family in Potato Under Drought Stress. Front Genet 2022; 13:874397. [PMID: 35669192 PMCID: PMC9164159 DOI: 10.3389/fgene.2022.874397] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Accepted: 04/20/2022] [Indexed: 12/13/2022] Open
Abstract
Calcium-dependent protein kinases (CDPKs) are a class of serine/threonine protein kinases encoded by several gene families that play key roles in stress response and plant growth and development. In this study, the BLAST method was used to search for protein sequences of the potato Calcium-dependent protein kinase gene family. The chromosome location, phylogeny, gene structures, gene duplication, cis-acting elements, protein-protein interaction, and expression profiles were analyzed. Twenty-five CDPK genes in the potato genome were identified based on RNA-seq data and were clustered into four groups (I-IV) based on their structural features and phylogenetic analysis. The result showed the composition of the promoter region of the StCDPKs gene, including light-responsive elements such as Box4, hormone-responsive elements such as ABRE, and stress-responsive elements such as MBS. Four pairs of segmental duplications were found in StCDPKs genes and the Ka/Ks ratios were below 1, indicating a purifying selection of the genes. The protein-protein interaction network revealed defense-related proteins such as; respiratory burst oxidase homologs (RBOHs) interacting with potato CDPKs. Transcript abundance was measured via RT-PCR between the two cultivars and their relative expression of CDPK genes was analyzed after 15, 20, and 25 days of drought. There were varied expression patterns of StCDPK3/13/21 and 23, between the two potato cultivars under mannitol induced-drought conditions. Correlation analysis showed that StCDPK21/22 and StCDPK3 may be the major differentially expressed genes involved in the regulation of malondialdehyde (MDA) and proline content in response to drought stress, opening a new research direction for genetic improvement of drought resistance in potato.
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Affiliation(s)
- Simon Dontoro Dekomah
- College of Agronomy, Gansu Agricultural University, Lanzhou, China
- Gansu Provincial Key Laboratory of Aridland Crop Science, Lanzhou, China
| | - Yihao Wang
- College of Agronomy, Gansu Agricultural University, Lanzhou, China
- Gansu Provincial Key Laboratory of Aridland Crop Science, Lanzhou, China
| | - Tianyuan Qin
- College of Agronomy, Gansu Agricultural University, Lanzhou, China
- Gansu Provincial Key Laboratory of Aridland Crop Science, Lanzhou, China
| | - Derong Xu
- College of Agronomy, Gansu Agricultural University, Lanzhou, China
- Gansu Provincial Key Laboratory of Aridland Crop Science, Lanzhou, China
| | - Chao Sun
- College of Agronomy, Gansu Agricultural University, Lanzhou, China
- Gansu Provincial Key Laboratory of Aridland Crop Science, Lanzhou, China
| | - Panfeng Yao
- Gansu Provincial Key Laboratory of Aridland Crop Science, Lanzhou, China
| | - Yuhui Liu
- Gansu Provincial Key Laboratory of Aridland Crop Science, Lanzhou, China
| | - Zhenzhen Bi
- College of Agronomy, Gansu Agricultural University, Lanzhou, China
- Gansu Provincial Key Laboratory of Aridland Crop Science, Lanzhou, China
- *Correspondence: Zhenzhen Bi, ; Jiangping Bai,
| | - Jiangping Bai
- College of Agronomy, Gansu Agricultural University, Lanzhou, China
- Gansu Provincial Key Laboratory of Aridland Crop Science, Lanzhou, China
- *Correspondence: Zhenzhen Bi, ; Jiangping Bai,
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16
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Yip Delormel T, Avila-Ospina L, Davanture M, Zivy M, Lang J, Valentin N, Rayapuram N, Hirt H, Colcombet J, Boudsocq M. In vivo identification of putative CPK5 substrates in Arabidopsis thaliana. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 314:111121. [PMID: 34895550 DOI: 10.1016/j.plantsci.2021.111121] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 11/12/2021] [Accepted: 11/15/2021] [Indexed: 06/14/2023]
Abstract
Calcium signaling mediates most developmental processes and stress responses in plants. Among plant calcium sensors, the calcium-dependent protein kinases display a unique structure harboring both calcium sensing and kinase responding activities. AtCPK5 is an essential member of this family in Arabidopsis that regulates immunity and abiotic stress tolerance. To understand the underlying molecular mechanisms, we implemented a biochemical approach to identify in vivo substrates of AtCPK5. We generated transgenic lines expressing a constitutively active form of AtCPK5 under the control of a dexamethasone-inducible promoter. Lines expressing a kinase-dead version were used as a negative control. By comparing the phosphoproteome of the kinase-active and kinase-dead lines upon dexamethasone treatment, we identified 5 phosphopeptides whose abundance increased specifically in the kinase-active lines. Importantly, we showed that all 5 proteins were phosphorylated in vitro by AtCPK5 in a calcium-dependent manner, suggesting that they are direct targets of AtCPK5. We also detected several interaction patterns between the kinase and the candidates in the cytosol, membranes or nucleus, consistent with the ubiquitous localization of AtCPK5. Finally, we further validated the two phosphosites S245 and S280 targeted by AtCPK5 in the E3 ubiquitin ligase ATL31. Altogether, those results open new perspectives to decipher AtCPK5 biological functions.
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Affiliation(s)
- Tiffany Yip Delormel
- Université Paris-Saclay, CNRS, INRAE, Univ Evry, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France; Université de Paris, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France.
| | - Liliana Avila-Ospina
- Université Paris-Saclay, CNRS, INRAE, Univ Evry, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France; Université de Paris, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France.
| | - Marlène Davanture
- Université Paris-Saclay, INRAE, CNRS, AgroParisTech, Génétique Quantitative et Évolution (GQE) - Le Moulon, 91190, Gif-sur-Yvette, France.
| | - Michel Zivy
- Université Paris-Saclay, INRAE, CNRS, AgroParisTech, Génétique Quantitative et Évolution (GQE) - Le Moulon, 91190, Gif-sur-Yvette, France.
| | - Julien Lang
- Université Paris-Saclay, CNRS, INRAE, Univ Evry, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France; Université de Paris, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France.
| | - Nicolas Valentin
- Université Paris-Saclay, CNRS, INRAE, Univ Evry, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France; Université de Paris, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France.
| | - Naganand Rayapuram
- Center for Desert Agriculture, 4700 King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia.
| | - Heribert Hirt
- Center for Desert Agriculture, 4700 King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia.
| | - Jean Colcombet
- Université Paris-Saclay, CNRS, INRAE, Univ Evry, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France; Université de Paris, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France.
| | - Marie Boudsocq
- Université Paris-Saclay, CNRS, INRAE, Univ Evry, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France; Université de Paris, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France.
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17
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Kashtoh H, Baek KH. Structural and Functional Insights into the Role of Guard Cell Ion Channels in Abiotic Stress-Induced Stomatal Closure. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10122774. [PMID: 34961246 PMCID: PMC8707303 DOI: 10.3390/plants10122774] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 11/25/2021] [Accepted: 12/07/2021] [Indexed: 06/14/2023]
Abstract
A stomatal pore is formed by a pair of specialized guard cells and serves as a major gateway for water transpiration and atmospheric CO2 influx for photosynthesis in plants. These pores must be tightly controlled, as inadequate CO2 intake and excessive water loss are devastating for plants. When the plants are exposed to extreme weather conditions such as high CO2 levels, O3, low air humidity, and drought, the turgor pressure of the guard cells exhibits an appropriate response against these stresses, which leads to stomatal closure. This phenomenon involves a complex network of ion channels and their regulation. It is well-established that the turgor pressure of guard cells is regulated by ions transportation across the membrane, such as anions and potassium ions. In this review, the guard cell ion channels are discussed, highlighting the structure and functions of key ion channels; the SLAC1 anion channel and KAT1 potassium channel, and their regulatory components, emphasizing their significance in guard cell response to various stimuli.
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18
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Veremeichik GN, Shkryl YN, Silantieva SA, Gorpenchenko TY, Brodovskaya EV, Yatsunskaya MS, Bulgakov VP. Managing activity and Ca 2+ dependence through mutation in the Junction of the AtCPK1 coordinates the salt tolerance in transgenic tobacco plants. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 165:104-113. [PMID: 34034156 DOI: 10.1016/j.plaphy.2021.05.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 05/17/2021] [Indexed: 06/12/2023]
Abstract
Calcium-dependent protein kinases (CDPKs) are Ca2+ decoders in plants. AtCPK1 is a positive regulator in the plant response to biotic and abiotic stress. Inactivation of the autoinhibitory domain of AtCPK1 in the mutated form KJM23 provides constitutive activity of the kinase. In the present study, we investigated the effect of overexpressed native and mutant KJM23 forms on salinity tolerance in Nicotiana tabacum. Overexpression of native AtCPK1 provided tobacco resistance to 120 mM NaCl during germination and 180 mM NaCl during long-term growth, while the resistance of plants increased to 240 mM NaCl during both phases of plant development when transformed with KJM23. Mutation in the junction KJM4, which disrupted Ca2+ induced activation, completely nullified the acquired salt tolerance up to levels of normal plants. Analysis by confocal microscopy showed that under high salinity conditions, overexpression of AtCPK1 and KJM23 inhibited reactive oxygen species (ROS) accumulation to levels observed in untreated plants. Quantitative real-time PCR analysis showed that overexpression of AtCPK1 and KJM23 was associated with changes in expression of genes encoding heat shock factors. In all cases, the KJM23 mutation enhanced the effect of AtCPK1, while the KJM4 mutation reduced it to the control level. We suggest that the autoinhibitory domains in CDPKs could be promising targets for manipulation in engineering salt-tolerant plants.
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Affiliation(s)
- G N Veremeichik
- Federal Scientific Centre of the East Asia Terrestrial Biodiversity of the Far East Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia.
| | - Y N Shkryl
- Federal Scientific Centre of the East Asia Terrestrial Biodiversity of the Far East Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - S A Silantieva
- Federal Scientific Centre of the East Asia Terrestrial Biodiversity of the Far East Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - T Y Gorpenchenko
- Federal Scientific Centre of the East Asia Terrestrial Biodiversity of the Far East Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - E V Brodovskaya
- Federal Scientific Centre of the East Asia Terrestrial Biodiversity of the Far East Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - M S Yatsunskaya
- Federal Scientific Centre of the East Asia Terrestrial Biodiversity of the Far East Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - V P Bulgakov
- Federal Scientific Centre of the East Asia Terrestrial Biodiversity of the Far East Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia
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19
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Li K, Prada J, Damineli DSC, Liese A, Romeis T, Dandekar T, Feijó JA, Hedrich R, Konrad KR. An optimized genetically encoded dual reporter for simultaneous ratio imaging of Ca 2+ and H + reveals new insights into ion signaling in plants. THE NEW PHYTOLOGIST 2021; 230:2292-2310. [PMID: 33455006 PMCID: PMC8383442 DOI: 10.1111/nph.17202] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 12/23/2020] [Indexed: 05/07/2023]
Abstract
Whereas the role of calcium ions (Ca2+ ) in plant signaling is well studied, the physiological significance of pH-changes remains largely undefined. Here we developed CapHensor, an optimized dual-reporter for simultaneous Ca2+ and pH ratio-imaging and studied signaling events in pollen tubes (PTs), guard cells (GCs), and mesophyll cells (MCs). Monitoring spatio-temporal relationships between membrane voltage, Ca2+ - and pH-dynamics revealed interconnections previously not described. In tobacco PTs, we demonstrated Ca2+ -dynamics lag behind pH-dynamics during oscillatory growth, and pH correlates more with growth than Ca2+ . In GCs, we demonstrated abscisic acid (ABA) to initiate stomatal closure via rapid cytosolic alkalization followed by Ca2+ elevation. Preventing the alkalization blocked GC ABA-responses and even opened stomata in the presence of ABA, disclosing an important pH-dependent GC signaling node. In MCs, a flg22-induced membrane depolarization preceded Ca2+ -increases and cytosolic acidification by c. 2 min, suggesting a Ca2+ /pH-independent early pathogen signaling step. Imaging Ca2+ and pH resolved similar cytosol and nuclear signals and demonstrated flg22, but not ABA and hydrogen peroxide to initiate rapid membrane voltage-, Ca2+ - and pH-responses. We propose close interrelation in Ca2+ - and pH-signaling that is cell type- and stimulus-specific and the pH having crucial roles in regulating PT growth and stomata movement.
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Affiliation(s)
- Kunkun Li
- Department of Botany I, Julius-Von-Sachs Institute for Biosciences, University of Wuerzburg, Wuerzburg 97082, Germany
| | - Juan Prada
- Department of Bioinformatics, University of Wuerzburg, Wuerzburg 97074, Germany
| | - Daniel S. C. Damineli
- Department of Cell Biology & Molecular Genetics, University of Maryland, 2136 Bioscience Research Bldg, College Park, MD 20742-5815, USA
- Department of Pediatrics, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP 01246-903, Brazil
| | - Anja Liese
- Leibniz Institute of Plant Biochemistry, Halle (Saale) 06120, Germany
| | - Tina Romeis
- Leibniz Institute of Plant Biochemistry, Halle (Saale) 06120, Germany
| | - Thomas Dandekar
- Department of Bioinformatics, University of Wuerzburg, Wuerzburg 97074, Germany
| | - José A. Feijó
- Department of Cell Biology & Molecular Genetics, University of Maryland, 2136 Bioscience Research Bldg, College Park, MD 20742-5815, USA
| | - Rainer Hedrich
- Department of Botany I, Julius-Von-Sachs Institute for Biosciences, University of Wuerzburg, Wuerzburg 97082, Germany
| | - Kai Robert Konrad
- Department of Botany I, Julius-Von-Sachs Institute for Biosciences, University of Wuerzburg, Wuerzburg 97082, Germany
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20
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Bredow M, Bender KW, Johnson Dingee A, Holmes DR, Thomson A, Ciren D, Tanney CAS, Dunning KE, Trujillo M, Huber SC, Monaghan J. Phosphorylation-dependent subfunctionalization of the calcium-dependent protein kinase CPK28. Proc Natl Acad Sci U S A 2021; 118:e2024272118. [PMID: 33941701 PMCID: PMC8126791 DOI: 10.1073/pnas.2024272118] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Calcium (Ca2+)-dependent protein kinases (CDPKs or CPKs) are a unique family of Ca2+ sensor/kinase-effector proteins with diverse functions in plants. In Arabidopsis thaliana, CPK28 contributes to immune homeostasis by promoting degradation of the key immune signaling receptor-like cytoplasmic kinase BOTRYTIS-INDUCED KINASE 1 (BIK1) and additionally functions in vegetative-to-reproductive stage transition. How CPK28 controls these seemingly disparate pathways is unknown. Here, we identify a single phosphorylation site in the kinase domain of CPK28 (Ser318) that is differentially required for its function in immune homeostasis and stem elongation. We show that CPK28 undergoes intermolecular autophosphorylation on Ser318 and can additionally be transphosphorylated on this residue by BIK1. Analysis of several other phosphorylation sites demonstrates that Ser318 phosphorylation is uniquely required to prime CPK28 for Ca2+ activation at physiological concentrations of Ca2+, possibly through stabilization of the Ca2+-bound active state as indicated by intrinsic fluorescence experiments. Together, our data indicate that phosphorylation of Ser318 is required for the activation of CPK28 at low intracellular [Ca2+] to prevent initiation of an immune response in the absence of infection. By comparison, phosphorylation of Ser318 is not required for stem elongation, indicating pathway-specific requirements for phosphorylation-based Ca2+-sensitivity priming. We additionally provide evidence for a conserved function for Ser318 phosphorylation in related group IV CDPKs, which holds promise for biotechnological applications by generating CDPK alleles that enhance resistance to microbial pathogens without consequences to yield.
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Affiliation(s)
- Melissa Bredow
- Department of Biology, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Kyle W Bender
- Department of Plant Biology, School of Integrative Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801
| | | | - Danalyn R Holmes
- Department of Biology, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Alysha Thomson
- Department of Biology, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Danielle Ciren
- Department of Biology, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Cailun A S Tanney
- Department of Biology, Queen's University, Kingston, ON K7L 3N6, Canada
| | - Katherine E Dunning
- Department of Biology, Queen's University, Kingston, ON K7L 3N6, Canada
- Department of Cell Biology, University of Freiburg, Freiburg 79104, Germany
| | - Marco Trujillo
- Department of Cell Biology, University of Freiburg, Freiburg 79104, Germany
| | - Steven C Huber
- Department of Plant Biology, School of Integrative Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801
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21
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Sciorra MD, Fantino E, Grossi CEM, Ulloa RM. Characterization of two group III potato CDPKs, StCDPK22 and StCDPK24, that contain three EF-Hand motifs in their CLDs. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 162:716-729. [PMID: 33799183 DOI: 10.1016/j.plaphy.2021.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 03/05/2021] [Indexed: 06/12/2023]
Abstract
Four members of the potato (Solanum tuberosum L.) calcium-dependent protein kinase (CDPK) family StCDPK22/23/24 and StCDPK27, present three functional EF-hands motifs in their calmodulin-like domain (CLD). StCDPK22/23/24 are clustered in clade III-b1 with tomato and Arabidopsis CDPKs that lack the first EF-hand motif, while StCDPK27 is clustered in clade III-b3 with CDPKs that lack EF-hand 2. Members of each clade share similar intron-exon structures and acylation profiles. 3D model predictions suggested that StCDPK22 and StCDPK24 are active kinases that undergo a conformational switch in the presence of Ca2+ even when lacking one functional EF-hand motif; however, assays performed with recombinant proteins indicated that StCDPK24:6xHis was active in all the conditions tested, and its activity was enhanced in the presence of Ca2+, but StCDPK22:6xHis had scarce or null activity. Both kinases share with AtCPK8 the same autophosphorylation pattern in the autoinhibitory (AD) and C-terminal variable (CTV) domains, suggesting that it could be a characteristic of clade III-b1. RT-qPCR analysis revealed that StCDPK22 is mainly expressed in early stages of tuberization, but not limited to, while StCDPK24 expression is more ubiquitous. In silico analysis predicted several abiotic stress-responsive elements in its promoters. Accordingly, StCDPK24 expression peaked at 10 h in in vitro plants exposed to salt shock and then declined. Moreover, a significant increase was observed at 2 h in stems of salt-treated greenhouse plants, suggesting that this CDPK could participate in the early events of the signaling cascade triggered in response to salt.
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Affiliation(s)
- Marcelo Daniel Sciorra
- Laboratorio de Transducción de Señales en Plantas, Instituto de Investigaciones en Ingeniería Genética y Biología Molecular (INGEBI), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad Autónoma de Buenos Aires (C.A.B.A.), Argentina
| | - Elisa Fantino
- Laboratorio de Transducción de Señales en Plantas, Instituto de Investigaciones en Ingeniería Genética y Biología Molecular (INGEBI), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad Autónoma de Buenos Aires (C.A.B.A.), Argentina
| | - Cecilia Eugenia María Grossi
- Laboratorio de Transducción de Señales en Plantas, Instituto de Investigaciones en Ingeniería Genética y Biología Molecular (INGEBI), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad Autónoma de Buenos Aires (C.A.B.A.), Argentina
| | - Rita María Ulloa
- Laboratorio de Transducción de Señales en Plantas, Instituto de Investigaciones en Ingeniería Genética y Biología Molecular (INGEBI), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad Autónoma de Buenos Aires (C.A.B.A.), Argentina; Departamento de Química Biológica, UBA, C.A.B.A, Argentina.
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22
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Ca 2+-regulated mitochondrial carriers of ATP-Mg 2+/Pi: Evolutionary insights in protozoans. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2021; 1868:119038. [PMID: 33839167 DOI: 10.1016/j.bbamcr.2021.119038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/30/2021] [Accepted: 03/31/2021] [Indexed: 11/23/2022]
Abstract
In addition to its uptake across the Ca2+ uniporter, intracellular calcium signals can stimulate mitochondrial metabolism activating metabolite exchangers of the inner mitochondrial membrane belonging to the mitochondrial carrier family (SLC25). One of these Ca2+-regulated mitochondrial carriers (CaMCs) are the reversible ATP-Mg2+/Pi transporters, or SCaMCs, required for maintaining optimal adenine nucleotide (AdN) levels in the mitochondrial matrix representing an alternative transporter to the ADP/ATP translocases (AAC). This CaMC has a distinctive Calmodulin-like (CaM-like) domain fused to the carrier domain that makes its transport activity strictly dependent on cytosolic Ca2+ signals. Here we investigate about its origin analysing its distribution and features in unicellular eukaryotes. Unexpectedly, we find two types of ATP-Mg2+/Pi carriers, the canonical ones and shortened variants lacking the CaM-like domain. Phylogenetic analysis shows that both SCaMC variants have a common origin, unrelated to AACs, suggesting in turn that recurrent losses of the regulatory module have occurred in the different phyla. They are excluding variants that show a more limited distribution and less conservation than AACs. Interestingly, these truncated variants of SCaMC are found almost exclusively in parasitic protists, such as apicomplexans, kinetoplastides or animal-patogenic oomycetes, and in green algae, suggesting that its lost could be related to certain life-styles. In addition, we find an intricate structural diversity in these variants that may be associated with their pathogenicity. The consequences on SCaMC functions of these new SCaMC-b variants are discussed.
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23
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Ronzier E, Corratgé-Faillie C, Sanchez F, Brière C, Xiong TC. Ca 2+-Dependent Protein Kinase 6 Enhances KAT2 Shaker Channel Activity in Arabidopsis thaliana. Int J Mol Sci 2021; 22:ijms22041596. [PMID: 33562460 PMCID: PMC7914964 DOI: 10.3390/ijms22041596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/25/2021] [Accepted: 02/01/2021] [Indexed: 11/16/2022] Open
Abstract
Post-translational regulations of Shaker-like voltage-gated K+ channels were reported to be essential for rapid responses to environmental stresses in plants. In particular, it has been shown that calcium-dependent protein kinases (CPKs) regulate Shaker channels in plants. Here, the focus was on KAT2, a Shaker channel cloned in the model plant Arabidopsis thaliana, where is it expressed namely in the vascular tissues of leaves. After co-expression of KAT2 with AtCPK6 in Xenopuslaevis oocytes, voltage-clamp recordings demonstrated that AtCPK6 stimulates the activity of KAT2 in a calcium-dependent manner. A physical interaction between these two proteins has also been shown by Förster resonance energy transfer by fluorescence lifetime imaging (FRET-FLIM). Peptide array assays support that AtCPK6 phosphorylates KAT2 at several positions, also in a calcium-dependent manner. Finally, K+ fluorescence imaging in planta suggests that K+ distribution is impaired in kat2 knock-out mutant leaves. We propose that the AtCPK6/KAT2 couple plays a role in the homeostasis of K+ distribution in leaves.
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Affiliation(s)
- Elsa Ronzier
- BPMP, University Montpellier, CNRS, INRAE, Institut Agro, 34060 Montpellier, France; (E.R.); (C.C.-F.); (F.S.)
| | - Claire Corratgé-Faillie
- BPMP, University Montpellier, CNRS, INRAE, Institut Agro, 34060 Montpellier, France; (E.R.); (C.C.-F.); (F.S.)
| | - Frédéric Sanchez
- BPMP, University Montpellier, CNRS, INRAE, Institut Agro, 34060 Montpellier, France; (E.R.); (C.C.-F.); (F.S.)
- BIOM 7232, Avenue Pierre Fabre, 66650 Banyuls-Sur-Mer, France
| | - Christian Brière
- Laboratoire de Recherche en Sciences Végétales, UMR CNRS/UPS 5546, 24 chemin de Borde Rouge, 31326 Castanet-Tolosan, France;
| | - Tou Cheu Xiong
- BPMP, University Montpellier, CNRS, INRAE, Institut Agro, 34060 Montpellier, France; (E.R.); (C.C.-F.); (F.S.)
- Correspondence:
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24
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Wu Y, Zhang L, Zhou J, Zhang X, Feng Z, Wei F, Zhao L, Zhang Y, Feng H, Zhu H. Calcium-Dependent Protein Kinase GhCDPK28 Was Dentified and Involved in Verticillium Wilt Resistance in Cotton. FRONTIERS IN PLANT SCIENCE 2021; 12:772649. [PMID: 34975954 PMCID: PMC8715758 DOI: 10.3389/fpls.2021.772649] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 11/17/2021] [Indexed: 05/12/2023]
Abstract
Verticillium dahliae is a soil-borne fungus that causes vascular wilt through the roots of plants. Verticillium wilt caused by V. dahliae is one of the main diseases in cotton producing areas of the world, resulting in huge economic losses. Breeding resistant varieties is the most economical and effective method to control Verticillium wilt. Calcium-dependent protein kinases (CDPKs) play a pivotal role in plant innate immunity, including regulation of oxidative burst, gene expression as well as hormone signal transduction. However, the function of cotton CDPKs in response to V. dahliae stress remains unexplored. In this study, 96, 44 and 57 CDPKs were identified from Gossypium hirsutum, Gossypium raimondii and Gossypium arboretum, respectively. Phylogenetic analysis showed that these CDPKs could be divided into four branches. All GhCDPKs of the same clade are generally similar in gene structure and conserved domain arrangement. Cis-acting elements related to hormones, stress response, cell cycle and development were predicted in the promoter region. The expression of GhCDPKs could be regulated by various stresses. Gh_D11G188500.1 and Gh_A11G186100.1 was up-regulated under Vd0738 and Vd991 stress. Further phosphoproteomics analysis showed that Gh_A11G186100.1 (named as GhCDPK28-6) was phosphorylated under the stress of V. dahliae. Knockdown of GhCDPK28-6 expression, the content of reactive oxygen species was increased, a series of defense responses were enhanced, and the sensitivity of cotton to V. dahliae was reduced. Moreover, overexpression of GhCDPK28-6 in Arabidopsis thaliana weakened the resistance of plants to this pathogen. Subcellular localization revealed that GhCDPK28-6 was localized in the cell membrane. We also found that GhPBL9 and GhRPL12C may interact with GhCDPK28-6. These results indicate that GhCDPK28-6 is a potential molecular target for improving resistance to Verticillium wilt in cotton. This lays a foundation for breeding disease-resistant varieties.
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Affiliation(s)
- Yajie Wu
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China
| | - Lei Zhang
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, China
| | - Jinglong Zhou
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, China
| | - Xiaojian Zhang
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China
| | - Zili Feng
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, China
| | - Feng Wei
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, China
| | - Lihong Zhao
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, China
| | - Yalin Zhang
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, China
| | - Hongjie Feng
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, China
- *Correspondence: Hongjie Feng,
| | - Heqin Zhu
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou, China
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou, China
- State Key Laboratory of Cotton Biology, Institute of Cotton Research of CAAS, Anyang, China
- Heqin Zhu,
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25
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Zhou Q, Meng Q, Tan X, Ding W, Ma K, Xu Z, Huang X, Gao H. Protein Phosphorylation Changes During Systemic Acquired Resistance in Arabidopsis thaliana. FRONTIERS IN PLANT SCIENCE 2021; 12:748287. [PMID: 34858456 PMCID: PMC8632492 DOI: 10.3389/fpls.2021.748287] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 10/08/2021] [Indexed: 05/03/2023]
Abstract
Systemic acquired resistance (SAR) in plants is a defense response that provides resistance against a wide range of pathogens at the whole-plant level following primary infection. Although the molecular mechanisms of SAR have been extensively studied in recent years, the role of phosphorylation that occurs in systemic leaves of SAR-induced plants is poorly understood. We used a data-independent acquisition (DIA) phosphoproteomics platform based on high-resolution mass spectrometry in an Arabidopsis thaliana model to identify phosphoproteins related to SAR establishment. A total of 8011 phosphorylation sites from 3234 proteins were identified in systemic leaves of Pseudomonas syringae pv. maculicola ES4326 (Psm ES4326) and mock locally inoculated plants. A total of 859 significantly changed phosphoproteins from 1119 significantly changed phosphopeptides were detected in systemic leaves of Psm ES4326 locally inoculated plants, including numerous transcription factors and kinases. A variety of defense response-related proteins were found to be differentially phosphorylated in systemic leaves of Psm ES4326 locally inoculated leaves, suggesting that these proteins may be functionally involved in SAR through phosphorylation or dephosphorylation. Significantly changed phosphoproteins were enriched mainly in categories related to response to abscisic acid, regulation of stomatal movement, plant-pathogen interaction, MAPK signaling pathway, purine metabolism, photosynthesis-antenna proteins, and flavonoid biosynthesis. A total of 28 proteins were regulated at both protein and phosphorylation levels during SAR. RT-qPCR analysis revealed that changes in phosphorylation levels of proteins during SAR did not result from changes in transcript abundance. This study provides comprehensive details of key phosphoproteins associated with SAR, which will facilitate further research on the molecular mechanisms of SAR.
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Affiliation(s)
- Qingfeng Zhou
- College of Biology and Food, Shangqiu Normal University, Shangqiu, China
| | - Qi Meng
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Provincial Key Laboratory of Biotechnology, College of Life Sciences, Northwest University, Xi’an, China
| | - Xiaomin Tan
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Provincial Key Laboratory of Biotechnology, College of Life Sciences, Northwest University, Xi’an, China
| | - Wei Ding
- Shanghai Omicsspace Biotechnology Co., Ltd., Shanghai, China
| | - Kang Ma
- College of Biology and Food, Shangqiu Normal University, Shangqiu, China
| | - Ziqin Xu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Provincial Key Laboratory of Biotechnology, College of Life Sciences, Northwest University, Xi’an, China
| | - Xuan Huang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Provincial Key Laboratory of Biotechnology, College of Life Sciences, Northwest University, Xi’an, China
- *Correspondence: Xuan Huang,
| | - Hang Gao
- College of Biology and Food, Shangqiu Normal University, Shangqiu, China
- Hang Gao,
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26
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Li GZ, Li HX, Xu MJ, Wang PF, Xiao XH, Kang GZ. Functional characterization and regulatory mechanism of wheat CPK34 kinase in response to drought stress. BMC Genomics 2020; 21:577. [PMID: 32831009 PMCID: PMC7444251 DOI: 10.1186/s12864-020-06985-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 08/12/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Drought is one of the most adverse environmental factors limiting crop productions and it is important to identify key genetic determinants for food safety. Calcium-dependent protein kinases (CPKs) are known to be involved in plant growth, development, and environmental stresses. However, biological functions and regulatory mechanisms of many plant CPKs have not been explored. In our previous study, abundance of the wheat CPK34 (TaCPK34) protein was remarkably upregulated in wheat plants suffering from drought stress, inferring that it could be involved in this stress. Therefore, here we further detected its function and mechanism in response to drought stress. RESULTS Transcripts of the TaCPK34 gene were significantly induced after PEG-stimulated water deficiency (20% PEG6000) or 100 μM abscisic acid (ABA) treatments. The TaCPK34 gene was transiently silenced in wheat genome by using barley stripe mosaic virus-induced silencing (BSMV-VIGS) method. After 14 days of drought stress, the transiently TaCPK34-silenced wheat seedlings showed more sensitivity compared with control, and the plant biomasses and relative water contents significantly decreased, whereas soluble sugar and MDA contents increased. The iTRAQ-based quantitative proteomics was employed to measure the protein expression profiles in leaves of the transiently TaCPK34-silenced wheat plants after drought stress. There were 6103 proteins identified, of these, 51 proteins exhibited significantly altered abundance, they were involved in diverse function. And sequence analysis on the promoters of genes, which encoded the above identified proteins, indicated that some promoters harbored some ABA-responsive elements. We determined the interactions between TaCPK34 and three identified proteins by using bimolecular fluorescent complementation (BiFC) method and our data indicated that TaCPK34directly interacted with the glutathione S-transferase 1 and prx113, respectively. CONCLUSIONS Our study suggested that the TaCPK34 gene played positive roles in wheat response to drought stress through directly or indirectly regulating the expression of ABA-dependent manner genes, which were encoding identified proteins from iTRAQ-based quantitative proteomics. And it could be used as one potential gene to develop crop cultivars with improved drought tolerance.
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Affiliation(s)
- Ge-Zi Li
- National Engineering Research Centre for Wheat, Henan Agricultural University, #15 Longzihu College District, Zhengzhou, 450046, Henan Province, People's Republic of China
| | - Han-Xiao Li
- National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, #15 Longzihu College District, Zhengzhou, 450046, Henan Province, People's Republic of China
| | - Meng-Jun Xu
- National Engineering Research Centre for Wheat, Henan Agricultural University, #15 Longzihu College District, Zhengzhou, 450046, Henan Province, People's Republic of China
| | - Peng-Fei Wang
- National Engineering Research Centre for Wheat, Henan Agricultural University, #15 Longzihu College District, Zhengzhou, 450046, Henan Province, People's Republic of China
| | - Xiang-Hong Xiao
- National Engineering Research Centre for Wheat, Henan Agricultural University, #15 Longzihu College District, Zhengzhou, 450046, Henan Province, People's Republic of China
| | - Guo-Zhang Kang
- National Engineering Research Centre for Wheat, Henan Agricultural University, #15 Longzihu College District, Zhengzhou, 450046, Henan Province, People's Republic of China. .,National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, #15 Longzihu College District, Zhengzhou, 450046, Henan Province, People's Republic of China.
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27
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Liu KH, Diener A, Lin Z, Liu C, Sheen J. Primary nitrate responses mediated by calcium signalling and diverse protein phosphorylation. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:4428-4441. [PMID: 31985788 PMCID: PMC7382375 DOI: 10.1093/jxb/eraa047] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 01/24/2020] [Indexed: 05/04/2023]
Abstract
Nitrate, the major source of inorganic nitrogen for plants, is a critical signal controlling nutrient transport and assimilation and adaptive growth responses throughout the plant. Understanding how plants perceive nitrate and how this perception is transduced into responses that optimize growth are important for the rational improvement of crop productivity and for mitigating pollution from the use of fertilizers. This review highlights recent findings that reveal key roles of cytosolic-nuclear calcium signalling and dynamic protein phosphorylation via diverse mechanisms in the primary nitrate response (PNR). Nitrate-triggered calcium signatures as well as the critical functions of subgroup III calcium-sensor protein kinases, a specific protein phosphatase 2C, and RNA polymerase II C-terminal domain phosphatase-like 3 are discussed. Moreover, genome-wide meta-analysis of nitrate-regulated genes encoding candidate protein kinases and phosphatases for modulating critical phosphorylation events in the PNR are elaborated. We also consider how phosphoproteomics approaches can contribute to the identification of putative regulatory protein kinases in the PNR. Exploring and integrating experimental strategies, new methodologies, and comprehensive datasets will further advance our understanding of the molecular and cellular mechanisms underlying the complex regulatory processes in the PNR.
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Affiliation(s)
- Kun-Hsiang Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest Agriculture & Forestry University, Yangling, Shaanxi, China
- Department of Molecular Biology and Centre for Computational and Integrative Biology, Massachusetts General Hospital, and Department of Genetics, Harvard Medical School, Boston, MA, USA
- Correspondence:
| | - Andrew Diener
- Department of Molecular Biology and Centre for Computational and Integrative Biology, Massachusetts General Hospital, and Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Ziwei Lin
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest Agriculture & Forestry University, Yangling, Shaanxi, China
| | - Cong Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest Agriculture & Forestry University, Yangling, Shaanxi, China
| | - Jen Sheen
- Department of Molecular Biology and Centre for Computational and Integrative Biology, Massachusetts General Hospital, and Department of Genetics, Harvard Medical School, Boston, MA, USA
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28
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Guerra T, Schilling S, Hake K, Gorzolka K, Sylvester FP, Conrads B, Westermann B, Romeis T. Calcium-dependent protein kinase 5 links calcium signaling with N-hydroxy-l-pipecolic acid- and SARD1-dependent immune memory in systemic acquired resistance. THE NEW PHYTOLOGIST 2020; 225:310-325. [PMID: 31469917 DOI: 10.1111/nph.16147] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 08/14/2019] [Indexed: 05/20/2023]
Abstract
Systemic acquired resistance (SAR) prepares infected plants for faster and stronger defense activation upon subsequent attacks. SAR requires an information relay from primary infection to distal tissue and the initiation and maintenance of a self-maintaining phytohormone salicylic acid (SA)-defense loop. In spatial and temporal resolution, we show that calcium-dependent protein kinase CPK5 contributes to immunity and SAR. In local basal resistance, CPK5 functions upstream of SA synthesis, perception, and signaling. In systemic tissue, CPK5 signaling leads to accumulation of SAR-inducing metabolite N-hydroxy-L-pipecolic acid (NHP) and SAR marker genes, including Systemic Acquired Resistance Deficient 1 (SARD1) Plants of increased CPK5, but not CPK6, signaling display an 'enhanced SAR' phenotype towards a secondary bacterial infection. In the sard1-1 background, CPK5-mediated basal resistance is still mounted, but NHP concentration is reduced and enhanced SAR is lost. The biochemical analysis estimated CPK5 half maximal kinase activity for calcium, K50 [Ca2+ ], to be c. 100 nM, close to the cytoplasmic resting level. This low threshold uniquely qualifies CPK5 to decode subtle changes in calcium, a prerequisite to signal relay and onset and maintenance of priming at later time points in distal tissue. Our data explain why CPK5 functions as a hub in basal and systemic plant immunity.
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Affiliation(s)
- Tiziana Guerra
- Department of Plant Biochemistry, Dahlem Centre of Plant Sciences, Institute for Biology, Freie Universität Berlin, Berlin, 14195, Germany
| | - Silke Schilling
- Department of Plant Biochemistry, Dahlem Centre of Plant Sciences, Institute for Biology, Freie Universität Berlin, Berlin, 14195, Germany
| | - Katharina Hake
- Department of Plant Biochemistry, Dahlem Centre of Plant Sciences, Institute for Biology, Freie Universität Berlin, Berlin, 14195, Germany
| | - Karin Gorzolka
- Leibniz Institute of Plant Biochemistry, Halle (Saale), 06120, Germany
| | - Fabian-Philipp Sylvester
- Department of Plant Biochemistry, Dahlem Centre of Plant Sciences, Institute for Biology, Freie Universität Berlin, Berlin, 14195, Germany
| | - Benjamin Conrads
- Department of Plant Biochemistry, Dahlem Centre of Plant Sciences, Institute for Biology, Freie Universität Berlin, Berlin, 14195, Germany
| | | | - Tina Romeis
- Department of Plant Biochemistry, Dahlem Centre of Plant Sciences, Institute for Biology, Freie Universität Berlin, Berlin, 14195, Germany
- Leibniz Institute of Plant Biochemistry, Halle (Saale), 06120, Germany
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29
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Zhu L, Zheng B, Song W, Li H, Jin X. Evolutionary Analysis of Calcium-Dependent Protein Kinase in Five Asteraceae Species. PLANTS (BASEL, SWITZERLAND) 2019; 9:plants9010032. [PMID: 31878291 PMCID: PMC7020201 DOI: 10.3390/plants9010032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 12/17/2019] [Accepted: 12/21/2019] [Indexed: 05/23/2023]
Abstract
Calcium-dependent protein kinase (CPK) is crucial in Ca2+ signal transduction, and is a large gene family in plants. In our previous work, we reported Hevea brasiliensis CPKs were important for natural rubber biosynthesis. However, this CPK gene family in other rubber producing plants has not been investigated. Here, we report the CPKs in five representative Asteraceae species, including three rubber-producing and two non-rubber species. A total of 34, 34, 40, 34 and 30 CPKs were identified from Taraxacum koksaghyz, Lactuca sativa, Helianthus annuus, Chrysanthemum nankingense and Cynara cardunculus, respectively. All CPKs were classified into four individual groups (group I to IV). In addition, 10 TkCPKs, 11 LsCPKs, 20 HaCPKs, 13 CnCPKs and 7 CcCPKs duplicated paralogs were identified. Further evolutionary analysis showed that, compared to other subfamilies, the group III had been expanded in the Asteraceae species, especially in the rubber-producing species. Meanwhile, the CPKs in group III from Asteraceae species tend to expand with low calcium binding capacity. This study provides a systematical evolutionary investigation of the CPKs in five representative Asteraceae species, suggesting that the sub-family specific expansion of CPKs might be related to natural rubber producing.
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Affiliation(s)
- Liping Zhu
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou 571158, China; (L.Z.); (B.Z.); (W.S.)
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, College of Life Sciences, Shihezi University, Shihezi 832003, China
| | - Bowen Zheng
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou 571158, China; (L.Z.); (B.Z.); (W.S.)
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, College of Life Sciences, Shihezi University, Shihezi 832003, China
| | - Wangyang Song
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou 571158, China; (L.Z.); (B.Z.); (W.S.)
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, College of Life Sciences, Shihezi University, Shihezi 832003, China
| | - Hongbin Li
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou 571158, China; (L.Z.); (B.Z.); (W.S.)
- Correspondence: (H.L.); (X.J.)
| | - Xiang Jin
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou 571158, China; (L.Z.); (B.Z.); (W.S.)
- Key Laboratory of Xinjiang Phytomedicine Resource and Utilization of Ministry of Education, College of Life Sciences, Shihezi University, Shihezi 832003, China
- Correspondence: (H.L.); (X.J.)
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Khalid MHB, Raza MA, Yu HQ, Khan I, Sun FA, Feng LY, Qu JT, Fu FL, Li WC. Expression, Subcellular Localization, and Interactions of CPK Family Genes in Maize. Int J Mol Sci 2019; 20:E6173. [PMID: 31817801 PMCID: PMC6940914 DOI: 10.3390/ijms20246173] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 11/30/2019] [Accepted: 12/05/2019] [Indexed: 12/20/2022] Open
Abstract
Calcium-dependent protein kinase (CPKs) is a key player in the calcium signaling pathway to decode calcium signals into various physiological responses. cDNA sequences of 9 ZmCPK genes were successfully cloned from all four phylogenetic groups in maize. qRT-PCR analysis showed the expression variation of these selected genes under abscisic acid (ABA) and calcium chloride (CaCl2) treatment. Due to the presence of N-myristoylation/palmitoylation sites, the selected ZmCPK members were localized in a plasma membrane. To clarify whether ZmCPK, a key player in calcium signaling, interacts with key players of ABA, protein phosphatase 2Cs (PP2Cs) and the SNF1-related protein kinase 2s (SnRK2s) and mitogen-activated protein kinase (MAPK) signaling pathways in maize, we examined the interaction between 9 CPKs, 8 PP2Cs, 5 SnRKs, and 20 members of the MPK family in maize by using yeast two-hybrid assay. Our results showed that three ZmCPKs interact with three different members of ZmSnRKs while four ZmCPK members had a positive interaction with 13 members of ZmMPKs in different combinations. These four ZmCPK proteins are from three different groups in maize. These findings of physical interactions between ZmCPKs, ZmSnRKs, and ZmMPKs suggested that these signaling pathways do not only have indirect influence but also have direct crosstalk that may involve the defense mechanism in maize. The present study may improve the understanding of signal transduction in plants.
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Affiliation(s)
- Muhammad Hayder Bin Khalid
- Maize Research Institute, Sichuan Agricultural University, Chengdu 611130, China; (M.H.B.K.); (H.Q.Y.); (F.A.S.); (J.T.Q.)
| | - Muhammad Ali Raza
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China; (M.A.R.); (L.Y.F.)
| | - Hao Qiang Yu
- Maize Research Institute, Sichuan Agricultural University, Chengdu 611130, China; (M.H.B.K.); (H.Q.Y.); (F.A.S.); (J.T.Q.)
| | - Imran Khan
- Department of Grassland Science, Sichuan Agricultural University, Chengdu 611130, China;
| | - Fu Ai Sun
- Maize Research Institute, Sichuan Agricultural University, Chengdu 611130, China; (M.H.B.K.); (H.Q.Y.); (F.A.S.); (J.T.Q.)
| | - Ling Yang Feng
- College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China; (M.A.R.); (L.Y.F.)
| | - Jing Tao Qu
- Maize Research Institute, Sichuan Agricultural University, Chengdu 611130, China; (M.H.B.K.); (H.Q.Y.); (F.A.S.); (J.T.Q.)
| | - Feng Ling Fu
- Maize Research Institute, Sichuan Agricultural University, Chengdu 611130, China; (M.H.B.K.); (H.Q.Y.); (F.A.S.); (J.T.Q.)
| | - Wan Chen Li
- Maize Research Institute, Sichuan Agricultural University, Chengdu 611130, China; (M.H.B.K.); (H.Q.Y.); (F.A.S.); (J.T.Q.)
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Zhang W, Cochet F, Ponnaiah M, Lebreton S, Matheron L, Pionneau C, Boudsocq M, Resentini F, Huguet S, Blázquez MÁ, Bailly C, Puyaubert J, Baudouin E. The MPK8-TCP14 pathway promotes seed germination in Arabidopsis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2019; 100:677-692. [PMID: 31325184 DOI: 10.1111/tpj.14461] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 06/26/2019] [Accepted: 07/09/2019] [Indexed: 05/25/2023]
Abstract
The accurate control of dormancy release and germination is critical for successful plantlet establishment. Investigations in cereals hypothesized a crucial role for specific MAP kinase (MPK) pathways in promoting dormancy release, although the identity of the MPK involved and the downstream events remain unclear. In this work, we characterized mutants for Arabidopsis thaliana MAP kinase 8 (MPK8). Mpk8 seeds presented a deeper dormancy than wild-type (WT) at harvest that was less efficiently alleviated by after-ripening and gibberellic acid treatment. We identified Teosinte Branched1/Cycloidea/Proliferating cell factor 14 (TCP14), a transcription factor regulating germination, as a partner of MPK8. Mpk8 tcp14 double-mutant seeds presented a deeper dormancy at harvest than WT and mpk8, but similar to that of tcp14 seeds. MPK8 interacted with TCP14 in the nucleus in vivo and phosphorylated TCP14 in vitro. Furthermore, MPK8 enhanced TCP14 transcriptional activity when co-expressed in tobacco leaves. Nevertheless, the stimulation of TCP14 transcriptional activity by MPK8 could occur independently of TCP14 phosphorylation. The comparison of WT, mpk8 and tcp14 transcriptomes evidenced that whereas no effect was observed in dry seeds, mpk8 and tcp14 mutants presented dramatic transcriptomic alterations after imbibition with a sustained expression of genes related to seed maturation. Moreover, both mutants exhibited repression of genes involved in cell wall remodeling and cell cycle G1/S transition. As a whole, this study unraveled a role for MPK8 in promoting seed germination, and suggested that its interaction with TCP14 was critical for regulating key processes required for germination completion.
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Affiliation(s)
- Wei Zhang
- Sorbonne Université, CNRS UMR7622, Institut de Biologie Paris-Seine-Laboratoire de Biologie du Développement (IBPS-LBD), 75005, Paris, France
| | - Françoise Cochet
- Sorbonne Université, CNRS UMR7622, Institut de Biologie Paris-Seine-Laboratoire de Biologie du Développement (IBPS-LBD), 75005, Paris, France
| | - Maharajah Ponnaiah
- Sorbonne Université, CNRS UMR7622, Institut de Biologie Paris-Seine-Laboratoire de Biologie du Développement (IBPS-LBD), 75005, Paris, France
| | - Sandrine Lebreton
- Sorbonne Université, Université Paris Est Créteil, Université Paris Diderot, CNRS, IRD, INRA, Institute of Ecology and Environmental Sciences of Paris (iEES), Paris, 75005, France
| | - Lucrèce Matheron
- Sorbonne Université, Institut de Biologie Paris-Seine, Paris, 75005, France
| | - Cédric Pionneau
- Sorbonne Université, INSERM, UMS 37 PASS, Plateforme Post-génomique de la Pitié-Salpêtrière (P3S), F-75013, Paris, France
| | - Marie Boudsocq
- Institute of Plant Sciences Paris-Saclay IPS2, CNRS, INRA, Univ Paris Sud, Univ Evry, Université Paris-Saclay, Univ Paris-Diderot, Sorbonne Paris-Cite, Rue de Noetzlin, 91190, Gif-sur-Yvette, France
| | - Francesca Resentini
- Instituto de Biología Molecular y Celular de Plantas, CSIC-U Politécnica de Valencia, 46022, Valencia, Spain
| | - Stéphanie Huguet
- Institute of Plant Sciences Paris-Saclay IPS2, CNRS, INRA, Univ Paris Sud, Univ Evry, Université Paris-Saclay, Univ Paris-Diderot, Sorbonne Paris-Cite, Rue de Noetzlin, 91190, Gif-sur-Yvette, France
| | - Miguel Á Blázquez
- Instituto de Biología Molecular y Celular de Plantas, CSIC-U Politécnica de Valencia, 46022, Valencia, Spain
| | - Christophe Bailly
- Sorbonne Université, CNRS UMR7622, Institut de Biologie Paris-Seine-Laboratoire de Biologie du Développement (IBPS-LBD), 75005, Paris, France
| | - Juliette Puyaubert
- Sorbonne Université, CNRS UMR7622, Institut de Biologie Paris-Seine-Laboratoire de Biologie du Développement (IBPS-LBD), 75005, Paris, France
| | - Emmanuel Baudouin
- Sorbonne Université, CNRS UMR7622, Institut de Biologie Paris-Seine-Laboratoire de Biologie du Développement (IBPS-LBD), 75005, Paris, France
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Ding C, Lei L, Yao L, Wang L, Hao X, Li N, Wang Y, Yin P, Guo G, Yang Y, Wang X. The involvements of calcium-dependent protein kinases and catechins in tea plant [Camellia sinensis (L.) O. Kuntze] cold responses. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2019; 143:190-202. [PMID: 31518850 DOI: 10.1016/j.plaphy.2019.09.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 09/03/2019] [Accepted: 09/04/2019] [Indexed: 05/23/2023]
Abstract
Temperature is one of the most important environmental factors limiting tea plant growth and tea production. Previously we reported that both Ca2+ and ROS signals play important roles in tea plant cold acclimation. Here, we identified 26 CsCPK transcripts, analyzed their phylogenetic and sequence characters, and detected their transcriptions to monitor Ca2+ signaling status. Tissue-specific expression profiles indicated that most CsCPK genes were constitutively expressed in tested tissues, suggesting their possible roles in development. Cold along with calcium inhibitor assays suggested that CsCPKs are important cold regulators and CsCPK30/5/4/9 maybe the key members. Moreover, LaCl3 or EGTA pre-treatment could result in impaired Ca2+ signaling and compromised cold-responding network, but higher catechins accumulation revealed their potential positive roles in cold responses. Those findings indicated that catechins and other secondary metabolites in tea plant may form an alternative cold-responding network that closely correlated with Ca2+ signaling status.
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Affiliation(s)
- Changqing Ding
- Tea Research Institute, Chinese Academy of Agricultural Sciences/National Center for Tea Improvement/Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture and Rural Affairs, Hangzhou, 310008, People's Republic of China
| | - Lei Lei
- Tea Research Institute, Chinese Academy of Agricultural Sciences/National Center for Tea Improvement/Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture and Rural Affairs, Hangzhou, 310008, People's Republic of China
| | - Lina Yao
- Tea Research Institute, Chinese Academy of Agricultural Sciences/National Center for Tea Improvement/Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture and Rural Affairs, Hangzhou, 310008, People's Republic of China
| | - Lu Wang
- Tea Research Institute, Chinese Academy of Agricultural Sciences/National Center for Tea Improvement/Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture and Rural Affairs, Hangzhou, 310008, People's Republic of China
| | - Xinyuan Hao
- Tea Research Institute, Chinese Academy of Agricultural Sciences/National Center for Tea Improvement/Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture and Rural Affairs, Hangzhou, 310008, People's Republic of China
| | - Nana Li
- Tea Research Institute, Chinese Academy of Agricultural Sciences/National Center for Tea Improvement/Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture and Rural Affairs, Hangzhou, 310008, People's Republic of China
| | - Yuchun Wang
- Tea Research Institute, Chinese Academy of Agricultural Sciences/National Center for Tea Improvement/Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture and Rural Affairs, Hangzhou, 310008, People's Republic of China
| | - Peng Yin
- Henan Key Laboratory of Tea Comprehensive Utilization in South Henan, Xinyang Agriculture and Forestry University, Xinyang, 464000, Henan, People's Republic of China
| | - Guiyi Guo
- Henan Key Laboratory of Tea Comprehensive Utilization in South Henan, Xinyang Agriculture and Forestry University, Xinyang, 464000, Henan, People's Republic of China.
| | - Yajun Yang
- Tea Research Institute, Chinese Academy of Agricultural Sciences/National Center for Tea Improvement/Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture and Rural Affairs, Hangzhou, 310008, People's Republic of China.
| | - Xinchao Wang
- Tea Research Institute, Chinese Academy of Agricultural Sciences/National Center for Tea Improvement/Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture and Rural Affairs, Hangzhou, 310008, People's Republic of China.
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Yip Delormel T, Boudsocq M. Properties and functions of calcium-dependent protein kinases and their relatives in Arabidopsis thaliana. THE NEW PHYTOLOGIST 2019; 224:585-604. [PMID: 31369160 DOI: 10.1111/nph.16088] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 07/19/2019] [Indexed: 05/20/2023]
Abstract
Calcium is a ubiquitous second messenger that mediates plant responses to developmental and environmental cues. Calcium-dependent protein kinases (CDPKs) are key actors of plant signaling that convey calcium signals into physiological responses by phosphorylating various substrates including ion channels, transcription factors and metabolic enzymes. This large diversity of targets confers pivotal roles of CDPKs in shoot and root development, pollen tube growth, stomatal movements, hormonal signaling, transcriptional reprogramming and stress tolerance. On the one hand, specificity in CDPK signaling is achieved by differential calcium sensitivities, expression patterns, subcellular localizations and substrates. On the other hand, CDPKs also target some common substrates to ensure key cellular processes indispensable for plant growth and survival in adverse environmental conditions. In addition, the CDPK-related protein kinases (CRKs) might be closer to some CDPKs than previously anticipated and could contribute to calcium signaling despite their inability to bind calcium. This review highlights the regulatory properties of Arabidopsis CDPKs and CRKs that coordinate their multifaceted functions in development, immunity and abiotic stress responses.
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Affiliation(s)
- Tiffany Yip Delormel
- Institute of Plant Sciences Paris-Saclay (IPS2), CNRS, INRA, Université Paris-Sud, Université d'Evry Val d'Essonne, Université Paris-Diderot, Sorbonne Paris-Cité, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Marie Boudsocq
- Institute of Plant Sciences Paris-Saclay (IPS2), CNRS, INRA, Université Paris-Sud, Université d'Evry Val d'Essonne, Université Paris-Diderot, Sorbonne Paris-Cité, Université Paris-Saclay, Gif-sur-Yvette, France
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Marcec MJ, Gilroy S, Poovaiah BW, Tanaka K. Mutual interplay of Ca 2+ and ROS signaling in plant immune response. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2019; 283:343-354. [PMID: 31128705 DOI: 10.1016/j.plantsci.2019.03.004] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 03/07/2019] [Accepted: 03/08/2019] [Indexed: 05/20/2023]
Abstract
Second messengers are cellular chemicals that act as "language codes", allowing cells to pass outside information to the cell interior. The cells then respond through triggering downstream reactions, including transcriptional reprograming to affect appropriate adaptive responses. The spatiotemporal patterning of these stimuli-induced signal changes has been referred to as a "signature", which is detected, decoded, and transmitted to elicit these downstream cellular responses. Recent studies have suggested that dynamic changes in second messengers, such as calcium (Ca2+), reactive oxygen species (ROS), and nitric oxide (NO), serve as signatures for both intracellular signaling and cell-to-cell communications. These second messenger signatures work in concert with physical signal signatures (such as electrical and hydraulic waves) to create a "lock and key" mechanism that triggers appropriate response to highly varied stresses. In plants, detailed information of how these signatures deploy their downstream signaling networks remains to be elucidated. Recent evidence suggests a mutual interplay between Ca2+ and ROS signaling has important implications for fine-tuning cellular signaling networks in plant immunity. These two signaling mechanisms amplify each other and this interaction may be a critical element of their roles in information processing for plant defense responses.
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Affiliation(s)
- Matthew J Marcec
- Department of Plant Pathology, Washington State University, Pullman, WA, 99164, USA; Molecular Plant Sciences Program, Washington State University, Pullman, WA, 99164, USA
| | - Simon Gilroy
- Department of Botany, University of Wisconsin, Madison, WI, 53706, USA
| | - B W Poovaiah
- Molecular Plant Sciences Program, Washington State University, Pullman, WA, 99164, USA; Department of Horticulture, Washington State University, Pullman, WA, 99164, USA
| | - Kiwamu Tanaka
- Department of Plant Pathology, Washington State University, Pullman, WA, 99164, USA; Molecular Plant Sciences Program, Washington State University, Pullman, WA, 99164, USA.
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Li Y, Fei X, Dai H, Li J, Zhu W, Deng X. Genome-Wide Identification of Calcium-Dependent Protein Kinases in Chlamydomonas reinhardtii and Functional Analyses in Nitrogen Deficiency-Induced Oil Accumulation. FRONTIERS IN PLANT SCIENCE 2019; 10:1147. [PMID: 31695707 PMCID: PMC6818280 DOI: 10.3389/fpls.2019.01147] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 08/22/2019] [Indexed: 05/15/2023]
Abstract
Calcium-dependent protein kinases (CDPKs) are recognized as important calcium (Ca2+) sensors in signal transduction and play multiple roles in plant growth and developmental processes, as well as in response to various environmental stresses. However, little information is available about the CDPK family in the green microalga Chlamydomonas reinhardtii. In this study, 15 CrCDPK genes were identified in C. reinhardtii genome, and their functions in nitrogen (N) deficiency-induced oil accumulation were analyzed. Our results showed that all CrCDPK proteins harbored the typical elongation factor (EF)-hand Ca2+-binding and protein kinase domains. Phylogenetic analysis revealed that these CrCDPKs were clustered into one group together with a subclade of several CPKs from Arabidopsis and rice, clearly separating from the remaining AtCPKs and OsCPKs. These genes were located in 10 chromosomes and one scaffold of C. reinhardtii and contained 6-17 exons. RNA sequencing and quantitative reverse transcription (qRT)-PCR assays indicated that most of these CrCDPKs were significantly induced by N deficiency and salt stress. Lanthanum chloride (LaCl3), a plasma membrane Ca2+ channel blocker, limited oil accumulation in C. reinhardtii under N-deficient conditions, suggesting that Ca2+ was involved in N deficiency-induced oil accumulation. Furthermore, RNA interference (RNAi) silencing analyses demonstrated that six CrCDPKs played positive roles and three CrCDPKs played negative roles in N deficiency-induced oil accumulation in C. reinhardtii.
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Affiliation(s)
- Yajun Li
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Bioscience and Biotechnology, Hainan Academy of Tropical Agricultural Resource, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Xiaowen Fei
- Biochemistry and Molecular Biology Department, Hainan Medical College, Haikou, China
| | - Haofu Dai
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Bioscience and Biotechnology, Hainan Academy of Tropical Agricultural Resource, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Jiangyue Li
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Bioscience and Biotechnology, Hainan Academy of Tropical Agricultural Resource, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Weiju Zhu
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Bioscience and Biotechnology, Hainan Academy of Tropical Agricultural Resource, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
| | - Xiaodong Deng
- Hainan Provincial Key Laboratory for Functional Components Research and Utilization of Marine Bio-resources, Institute of Tropical Bioscience and Biotechnology, Hainan Academy of Tropical Agricultural Resource, Chinese Academy of Tropical Agricultural Sciences, Haikou, China
- *Correspondence: Xiaodong Deng,
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Bredow M, Monaghan J. Regulation of Plant Immune Signaling by Calcium-Dependent Protein Kinases. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2019; 32:6-19. [PMID: 30299213 DOI: 10.1094/mpmi-09-18-0267-fi] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Activation of Ca2+ signaling is a universal response to stress that allows cells to quickly respond to environmental cues. Fluctuations in cytosolic Ca2+ are decoded in plants by Ca2+-sensing proteins such as Ca2+-dependent protein kinases (CDPKs). The perception of microbes results in an influx of Ca2+ that activates numerous CDPKs responsible for propagating immune signals required for resistance against disease-causing pathogens. This review describes our current understanding of CDPK activation and regulation, and provides a comprehensive overview of CDPK-mediated immune signaling through interaction with various substrates.
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Affiliation(s)
- Melissa Bredow
- Biology Department, Queen's University, Kingston ON K7L 3N6, Canada
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REM1.3's phospho-status defines its plasma membrane nanodomain organization and activity in restricting PVX cell-to-cell movement. PLoS Pathog 2018; 14:e1007378. [PMID: 30419072 PMCID: PMC6258466 DOI: 10.1371/journal.ppat.1007378] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 11/26/2018] [Accepted: 10/03/2018] [Indexed: 12/15/2022] Open
Abstract
Plants respond to pathogens through dynamic regulation of plasma membrane-bound signaling pathways. To date, how the plant plasma membrane is involved in responses to viruses is mostly unknown. Here, we show that plant cells sense the Potato virus X (PVX) COAT PROTEIN and TRIPLE GENE BLOCK 1 proteins and subsequently trigger the activation of a membrane-bound calcium-dependent kinase. We show that the Arabidopsis thaliana CALCIUM-DEPENDENT PROTEIN KINASE 3-interacts with group 1 REMORINs in vivo, phosphorylates the intrinsically disordered N-terminal domain of the Group 1 REMORIN REM1.3, and restricts PVX cell-to-cell movement. REM1.3's phospho-status defines its plasma membrane nanodomain organization and is crucial for REM1.3-dependent restriction of PVX cell-to-cell movement by regulation of callose deposition at plasmodesmata. This study unveils plasma membrane nanodomain-associated molecular events underlying the plant immune response to viruses. Viruses propagate in plants through membranous channels, called plasmodesmata, linking each cell to its neighboring cell. In this work, we challenge the role of the plasma membrane in the regulation of virus propagation. By studying the dynamics and the activation of a plant-specific protein called REMORIN, we found that the way this protein is organized inside the membrane is crucial to fulfill its function in the immunity of plants against viruses.
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Shi S, Li S, Asim M, Mao J, Xu D, Ullah Z, Liu G, Wang Q, Liu H. The Arabidopsis Calcium-Dependent Protein Kinases (CDPKs) and Their Roles in Plant Growth Regulation and Abiotic Stress Responses. Int J Mol Sci 2018; 19:E1900. [PMID: 29958430 PMCID: PMC6073581 DOI: 10.3390/ijms19071900] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 06/21/2018] [Indexed: 02/06/2023] Open
Abstract
As a ubiquitous secondary messenger in plant signaling systems, calcium ions (Ca2+) play essential roles in plant growth and development. Within the cellular signaling network, the accurate decoding of diverse Ca2+ signal is a fundamental molecular event. Calcium-dependent protein kinases (CDPKs), identified commonly in plants, are a kind of vital regulatory protein deciphering calcium signals triggered by various developmental and environmental stimuli. This review chiefly introduces Ca2+ distribution in plant cells, the classification of Arabidopsis thaliana CDPKs (AtCDPKs), the identification of the Ca2+-AtCDPK signal transduction mechanism and AtCDPKs’ functions involved in plant growth regulation and abiotic stress responses. The review presents a comprehensive overview of AtCDPKs and may contribute to the research of CDPKs in other plants.
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Affiliation(s)
- Sujuan Shi
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
| | - Shugui Li
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
- College of Agriculture, Qingdao Agricultural University, Qingdao 266109, China.
| | - Muhammad Asim
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
| | - Jingjing Mao
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
| | - Dizhi Xu
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
| | - Zia Ullah
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
| | - Guanshan Liu
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
| | - Qian Wang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
| | - Haobao Liu
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China.
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De Vriese K, Costa A, Beeckman T, Vanneste S. Pharmacological Strategies for Manipulating Plant Ca 2+ Signalling. Int J Mol Sci 2018; 19:E1506. [PMID: 29783646 PMCID: PMC5983822 DOI: 10.3390/ijms19051506] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 05/10/2018] [Accepted: 05/12/2018] [Indexed: 11/20/2022] Open
Abstract
Calcium is one of the most pleiotropic second messengers in all living organisms. However, signalling specificity is encoded via spatio-temporally regulated signatures that act with surgical precision to elicit highly specific cellular responses. How this is brought about remains a big challenge in the plant field, in part due to a lack of specific tools to manipulate/interrogate the plant Ca2+ toolkit. In many cases, researchers resort to tools that were optimized in animal cells. However, the obviously large evolutionary distance between plants and animals implies that there is a good chance observed effects may not be specific to the intended plant target. Here, we provide an overview of pharmacological strategies that are commonly used to activate or inhibit plant Ca2+ signalling. We focus on highlighting modes of action where possible, and warn for potential pitfalls. Together, this review aims at guiding plant researchers through the Ca2+ pharmacology swamp.
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Affiliation(s)
- Kjell De Vriese
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 927, 9052 Ghent, Belgium.
- VIB Center for Plant Systems Biology, VIB, Technologiepark 927, 9052 Ghent, Belgium.
| | - Alex Costa
- Department of Biosciences, University of Milan, 20133 Milan, Italy.
- Instititute of Biophysics, Consiglio Nazionale delle Ricerche, 20133 Milan, Italy.
| | - Tom Beeckman
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 927, 9052 Ghent, Belgium.
- VIB Center for Plant Systems Biology, VIB, Technologiepark 927, 9052 Ghent, Belgium.
| | - Steffen Vanneste
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 927, 9052 Ghent, Belgium.
- VIB Center for Plant Systems Biology, VIB, Technologiepark 927, 9052 Ghent, Belgium.
- Lab of Plant Growth Analysis, Ghent University Global Campus, Songdomunhwa-Ro, 119, Yeonsu-gu, Incheon 21985, Korea.
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Gutermuth T, Herbell S, Lassig R, Brosché M, Romeis T, Feijó JA, Hedrich R, Konrad KR. Tip-localized Ca 2+ -permeable channels control pollen tube growth via kinase-dependent R- and S-type anion channel regulation. THE NEW PHYTOLOGIST 2018; 218:1089-1105. [PMID: 29522235 DOI: 10.1111/nph.15067] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 01/18/2018] [Indexed: 05/26/2023]
Abstract
Pollen tubes (PTs) are characterized by having tip-focused cytosolic calcium ion (Ca2+ ) concentration ([Ca2+ ]cyt ) gradients, which are believed to control PT growth. However, the mechanisms by which the apical [Ca2+ ]cyt orchestrates PT growth are not well understood. Here, we aimed to identify these mechanisms by combining reverse genetics, cell biology, electrophysiology, and live-cell Ca2+ and anion imaging. We triggered Ca2+ -channel activation by applying hyperpolarizing voltage pulses and observed that the evoked [Ca2+ ]cyt increases were paralleled by high anion channel activity and a decrease in the cytosolic anion concentration at the PT tip. We confirmed a functional correlation between these patterns by showing that inhibition of Ca2+ -permeable channels eliminated the [Ca2+ ]cyt increase, resulting in the abrogation of anion channel activity via Ca2+ -dependent protein kinases (CPKs). Functional characterization of CPK and anion-channel mutants revealed a CPK2/20/6-dependent activation of SLAH3 and ALMT12/13/14 anion channels. The impaired growth phenotypes of anion channel and CPK mutants support the physiological significance of a kinase- and Ca2+ -dependent pathway to control PT growth via anion channel activation. Other than unveiling this functional link, our membrane hyperpolarization method allows for unprecedented manipulation of the [Ca2+ ]cyt gradient or oscillations in the PT tips and opens an array of opportunities for channel screenings.
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Affiliation(s)
- Timo Gutermuth
- Department of Botany I, Julius-Von-Sachs Institute for Biosciences, University of Wuerzburg, 97082, Wuerzburg, Germany
| | - Sarah Herbell
- Department of Botany I, Julius-Von-Sachs Institute for Biosciences, University of Wuerzburg, 97082, Wuerzburg, Germany
| | - Roman Lassig
- Plant Biochemistry, Dahlem Centre of Plant Sciences, FU Berlin, Königin-Luise-Straße 12/16, 14195, Berlin, Germany
| | - Mikael Brosché
- Organismal and Evolutionary Biology Research Programme, Faculty of Biological and Environmental Sciences, University of Helsinki, 00014, Helsinki, Finland
- Institute of Technology, University of Tartu, Nooruse 1, 50411, Tartu, Estonia
| | - Tina Romeis
- Plant Biochemistry, Dahlem Centre of Plant Sciences, FU Berlin, Königin-Luise-Straße 12/16, 14195, Berlin, Germany
| | - José Alberto Feijó
- Department of Cell Biology & Molecular Genetics, University of Maryland, 2136 Bioscience Research Building, College Park, MD, 20742-5815, USA
| | - Rainer Hedrich
- Department of Botany I, Julius-Von-Sachs Institute for Biosciences, University of Wuerzburg, 97082, Wuerzburg, Germany
| | - Kai Robert Konrad
- Department of Botany I, Julius-Von-Sachs Institute for Biosciences, University of Wuerzburg, 97082, Wuerzburg, Germany
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Konrad KR, Maierhofer T, Hedrich R. Spatio-temporal Aspects of Ca2+ Signalling: Lessons from Guard Cells and Pollen Tubes. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:4986225. [PMID: 29701811 DOI: 10.1093/jxb/ery154] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Indexed: 05/06/2023]
Abstract
Changes in cytosolic Ca2+ concentration ([Ca2+]cyt) serve to transmit information in eukaryotic cells. The involvement of this second messenger in plant cell growth as well as osmotic- and water relations is well established. After almost 40 years of intense research on the coding and decoding of plant Ca2+ signals, numerous proteins involved in Ca2+ action have been identified. However, we are still far from understanding the complexity of Ca2+ networks. New in vivo Ca2+ imaging techniques combined with molecular genetics allow visualisation of spatio-temporal aspects of Ca2+ signalling. In parallel, cell biology together with protein biochemistry and electrophysiology are able to dissect information processing by this second messenger in space and time. Here we focus on the time-resolved changes in cellular events upon Ca2+ signals, concentrating on the two best-studied cell types, pollen tubes and guard cells. We put their signalling networks side by side, compare them with those of other cell types and discuss rapid signalling in the context of Ca2+ transients and oscillations to regulate ion homeostasis.
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Affiliation(s)
- K R Konrad
- University of Wuerzburg, Julius-Von-Sachs Institute for Biosciences, Department of Botany I, Wuerzburg, Germany
| | - T Maierhofer
- University of Wuerzburg, Julius-Von-Sachs Institute for Biosciences, Department of Botany I, Wuerzburg, Germany
| | - R Hedrich
- University of Wuerzburg, Julius-Von-Sachs Institute for Biosciences, Department of Botany I, Wuerzburg, Germany
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42
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van Kleeff PJM, Gao J, Mol S, Zwart N, Zhang H, Li KW, de Boer AH. The Arabidopsis GORK K +-channel is phosphorylated by calcium-dependent protein kinase 21 (CPK21), which in turn is activated by 14-3-3 proteins. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2018; 125:219-231. [PMID: 29475088 DOI: 10.1016/j.plaphy.2018.02.013] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 02/11/2018] [Accepted: 02/13/2018] [Indexed: 05/23/2023]
Abstract
Potassium (K+) is a vital ion for many processes in the plant and fine-tuned ion channels control the K+-fluxes across the plasma membrane. GORK is an outward-rectifying K+-channel with important functions in stomatal closure and in root K+-homeostasis. In this study, post-translational modification of the Arabidopsis GORK ion channel and its regulation by 14-3-3 proteins was investigated. To investigate the possible interaction between GORK and 14-3-3s an in vivo pull-down from an Arabidopsis protein extract with recombinant GORK C-terminus (GORK-C) indeed identified endogenous 14-3-3s (LAMBDA, CHI, NU) as binding partners in a phosphorylation dependent manner. However, a direct interaction between 14-3-3's and GORK-C could not be demonstrated. Since the pull-down of 14-3-3s was phosphorylation dependent, we determined GORK-C as substrate for CPK21 phosphorylation and identified three CPK21 phospho-sites in the GORK protein (T344, S518 and S649). Moreover, interaction of 14-3-3 to CPK21 strongly stimulates its kinase activity; an effect that can result in increased GORK phosphorylation and change in activity. Using the non-invasive vibrating probe technique, we measured the predominantly GORK mediated salt induced K+-efflux from wild-type, gork, cpk21, aha2 and 14-3-3 mutant roots. The mutants cpk21 and aha2 did not show statistical significant differences compared to WT. However, two (out of six) 14-3-3 isoforms, CHI and PHI, have a clear function in the salt induced K+-efflux. In conclusion, our results show that GORK can be phosphorylated by CPK21 and suggest that 14-3-3 proteins control GORK activity through binding with and activation of CPK21.
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Affiliation(s)
- P J M van Kleeff
- Department of Structural Biology, Faculty of Earth and Life Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081 HV, Amsterdam, The Netherlands.
| | - J Gao
- Department of Structural Biology, Faculty of Earth and Life Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081 HV, Amsterdam, The Netherlands.
| | - S Mol
- Department of Structural Biology, Faculty of Earth and Life Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081 HV, Amsterdam, The Netherlands.
| | - N Zwart
- Department of Structural Biology, Faculty of Earth and Life Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081 HV, Amsterdam, The Netherlands.
| | - H Zhang
- Netherlands Proteomics Centre, Utrecht University - H.R. Kruyt gebouw, Padualaan 8, 3584 CH, Utrecht, The Netherlands.
| | - K W Li
- Department of Molecular and Cellular Neurobiology, Faculty of Earth and Life Sciences, Center for Neurogenomics and Cognitive Research, Neuroscience Campus, Amsterdam, The Netherlands.
| | - A H de Boer
- Department of Structural Biology, Faculty of Earth and Life Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081 HV, Amsterdam, The Netherlands.
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Kudla J, Becker D, Grill E, Hedrich R, Hippler M, Kummer U, Parniske M, Romeis T, Schumacher K. Advances and current challenges in calcium signaling. THE NEW PHYTOLOGIST 2018; 218:414-431. [PMID: 29332310 DOI: 10.1111/nph.14966] [Citation(s) in RCA: 320] [Impact Index Per Article: 53.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 11/21/2017] [Indexed: 05/21/2023]
Abstract
Content Summary 414 I. Introduction 415 II. Ca2+ importer and exporter in plants 415 III. The Ca2+ decoding toolkit in plants 415 IV. Mechanisms of Ca2+ signal decoding 417 V. Immediate Ca2+ signaling in the regulation of ion transport 418 VI. Ca2+ signal integration into long-term ABA responses 419 VII Integration of Ca2+ and hormone signaling through dynamic complex modulation of the CCaMK/CYCLOPS complex 420 VIII Ca2+ signaling in mitochondria and chloroplasts 422 IX A view beyond recent advances in Ca2+ imaging 423 X Modeling approaches in Ca2+ signaling 424 XI Conclusions: Ca2+ signaling a still young blooming field of plant research 424 Acknowledgements 425 ORCID 425 References 425 SUMMARY: Temporally and spatially defined changes in Ca2+ concentration in distinct compartments of cells represent a universal information code in plants. Recently, it has become evident that Ca2+ signals not only govern intracellular regulation but also appear to contribute to long distance or even organismic signal propagation and physiological response regulation. Ca2+ signals are shaped by an intimate interplay of channels and transporters, and during past years important contributing individual components have been identified and characterized. Ca2+ signals are translated by an elaborate toolkit of Ca2+ -binding proteins, many of which function as Ca2+ sensors, into defined downstream responses. Intriguing progress has been achieved in identifying specific modules that interconnect Ca2+ decoding proteins and protein kinases with downstream target effectors, and in characterizing molecular details of these processes. In this review, we reflect on recent major advances in our understanding of Ca2+ signaling and cover emerging concepts and existing open questions that should be informative also for scientists that are currently entering this field of ever-increasing breath and impact.
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Affiliation(s)
- Jörg Kudla
- Institut für Biologie und Biotechnologie der Pflanzen, Universität Münster, Schlossplatz 7/8, 48149, Münster, Germany
| | - Dirk Becker
- Department of Molecular Plant Physiology and Biophysics, University Würzburg, Julius-von-Sachs Platz 2, 97082, Würzburg, Germany
| | - Erwin Grill
- Lehrstuhl für Botanik, Technische Universität München, Am Hochanger 4, D-85354, Freising, Germany
| | - Rainer Hedrich
- Department of Molecular Plant Physiology and Biophysics, University Würzburg, Julius-von-Sachs Platz 2, 97082, Würzburg, Germany
| | - Michael Hippler
- Institut für Biologie und Biotechnologie der Pflanzen, Universität Münster, Schlossplatz 7/8, 48149, Münster, Germany
| | - Ursula Kummer
- Department of Modeling of Biological Processes, COS Heidelberg/Bioquant, Heidelberg University, Im Neuenheimer Feld 267, 69120, Heidelberg, Germany
| | - Martin Parniske
- Institute of Genetics, Biocenter University of Munich (LMU), Großhaderner Straße 4, 82152, Martinsried, Germany
| | - Tina Romeis
- Department of Plant Biochemistry, Dahlem Center of Plant Sciences, Freie Universität Berlin, 14195, Berlin, Germany
| | - Karin Schumacher
- Department of Developmental Biology, Centre for Organismal Studies (COS), University of Heidelberg, Im Neuenheimer Feld 230, 69120, Heidelberg, Germany
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Aldon D, Mbengue M, Mazars C, Galaud JP. Calcium Signalling in Plant Biotic Interactions. Int J Mol Sci 2018; 19:E665. [PMID: 29495448 PMCID: PMC5877526 DOI: 10.3390/ijms19030665] [Citation(s) in RCA: 152] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 02/21/2018] [Accepted: 02/22/2018] [Indexed: 12/31/2022] Open
Abstract
Calcium (Ca2+) is a universal second messenger involved in various cellular processes, leading to plant development and to biotic and abiotic stress responses. Intracellular variation in free Ca2+ concentration is among the earliest events following the plant perception of environmental change. These Ca2+ variations differ in their spatio-temporal properties according to the nature, strength and duration of the stimulus. However, their conversion into biological responses requires Ca2+ sensors for decoding and relaying. The occurrence in plants of calmodulin (CaM) but also of other sets of plant-specific Ca2+ sensors such as calmodulin-like proteins (CMLs), Ca2+-dependent protein kinases (CDPKs) and calcineurin B-like proteins (CBLs) indicate that plants possess specific tools and machineries to convert Ca2+ signals into appropriate responses. Here, we focus on recent progress made in monitoring the generation of Ca2+ signals at the whole plant or cell level and their long distance propagation during biotic interactions. The contribution of CaM/CMLs and CDPKs in plant immune responses mounted against bacteria, fungi, viruses and insects are also presented.
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Affiliation(s)
- Didier Aldon
- Laboratoire de Recherche en Sciences Vegetales, Universite de Toulouse, CNRS, UPS, 24, Chemin de Borde-Rouge, Auzeville, BP 42617, 31326 Castanet-Tolosan, France.
| | - Malick Mbengue
- Laboratoire de Recherche en Sciences Vegetales, Universite de Toulouse, CNRS, UPS, 24, Chemin de Borde-Rouge, Auzeville, BP 42617, 31326 Castanet-Tolosan, France.
| | - Christian Mazars
- Laboratoire de Recherche en Sciences Vegetales, Universite de Toulouse, CNRS, UPS, 24, Chemin de Borde-Rouge, Auzeville, BP 42617, 31326 Castanet-Tolosan, France.
| | - Jean-Philippe Galaud
- Laboratoire de Recherche en Sciences Vegetales, Universite de Toulouse, CNRS, UPS, 24, Chemin de Borde-Rouge, Auzeville, BP 42617, 31326 Castanet-Tolosan, France.
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Liu Y, Xu C, Zhu Y, Zhang L, Chen T, Zhou F, Chen H, Lin Y. The calcium-dependent kinase OsCPK24 functions in cold stress responses in rice. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2018; 60:173-188. [PMID: 29193704 DOI: 10.1111/jipb.12614] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 11/23/2017] [Indexed: 05/08/2023]
Abstract
Calcium-dependent protein kinases (CPKs) are serine/threonine protein kinases that function in plant stress responses. Although CPKs are recognized as key messengers in signal transduction, the specific roles of CPKs and the molecular mechanisms underlying their activity remain largely unknown. Here, we characterized the function of OsCPK24, a cytosol-localized calcium-dependent protein kinase in rice. OsCPK24 was universally and highly expressed in rice plants and was induced by cold treatment. Whereas OsCPK24 knockdown plants exhibited increased sensitivity to cold compared to wild type (WT), OsCPK24-overexpressing plants exhibited increased cold tolerance. Plants overexpressing OsCPK24 exhibited increased accumulation of proline (an osmoprotectant) and glutathione (an antioxidant) and maintained a higher GSH/GSSG (reduced glutathione to oxidized glutathione) ratio during cold stress compared to WT. In addition to these effects in response to cold stress, we observed the kinase activity of OsCPK24 varied under different calcium concentrations. Further, OsCPK24 phosphorylated OsGrx10, a glutathione-dependent thioltransferase, at rates modulated by changes in calcium concentration. Together, our results support the hypothesis that OsCPK24 functions as a positive regulator of cold stress tolerance in rice, a process mediated by calcium signaling and involving phosphorylation and the inhibition of OsGrx10 to sustain higher glutathione levels.
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Affiliation(s)
- Yu Liu
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Chunjue Xu
- Shenzhen Institute of Molecular Crop Design, Shenzhen 518107, China
| | - Yanfen Zhu
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Lina Zhang
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Taiyu Chen
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Fei Zhou
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Hao Chen
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Yongjun Lin
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
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Revisiting paradigms of Ca2+ signaling protein kinase regulation in plants. Biochem J 2018; 475:207-223. [DOI: 10.1042/bcj20170022] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 12/07/2017] [Accepted: 12/08/2017] [Indexed: 12/15/2022]
Abstract
Calcium (Ca2+) serves as a universal second messenger in eukaryotic signal transduction. Understanding the Ca2+ activation kinetics of Ca2+ sensors is critical to understanding the cellular signaling mechanisms involved. In this review, we discuss the regulatory properties of two sensor classes: the Ca2+-dependent protein kinases (CPKs/CDPKs) and the calcineurin B-like (CBL) proteins that control the activity of CBL-interacting protein kinases (CIPKs) and identify emerging topics and some foundational points that are not well established experimentally. Most plant CPKs are activated by physiologically relevant Ca2+ concentrations except for those with degenerate EF hands, and new results suggest that the Ca2+-dependence of kinase activation may be modulated by both protein–protein interactions and CPK autophosphorylation. Early results indicated that activation of plant CPKs by Ca2+ occurred by relief of autoinhibition. However, recent studies of protist CDPKs suggest that intramolecular interactions between CDPK domains contribute allosteric control to CDPK activation. Further studies are required to elucidate the mechanisms regulating plant CPKs. With CBL–CIPKs, the two major activation mechanisms are thought to be (i) binding of Ca2+-bound CBL to the CIPK and (ii) phosphorylation of residues in the CIPK activation loop. However, the relative importance of these two mechanisms in regulating CIPK activity is unclear. Furthermore, information detailing activation by physiologically relevant [Ca2+] is lacking, such that the paradigm of CBLs as Ca2+ sensors still requires critical, experimental validation. Developing models of CPK and CIPK regulation is essential to understand how these kinases mediate Ca2+ signaling and to the design of experiments to test function in vivo.
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47
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Xu W, Huang W. Calcium-Dependent Protein Kinases in Phytohormone Signaling Pathways. Int J Mol Sci 2017; 18:ijms18112436. [PMID: 29156607 PMCID: PMC5713403 DOI: 10.3390/ijms18112436] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 11/07/2017] [Accepted: 11/12/2017] [Indexed: 02/06/2023] Open
Abstract
Calcium-dependent protein kinases (CPKs/CDPKs) are Ca2+-sensors that decode Ca2+ signals into specific physiological responses. Research has reported that CDPKs constitute a large multigene family in various plant species, and play diverse roles in plant growth, development, and stress responses. Although numerous CDPKs have been exhaustively studied, and many of them have been found to be involved in plant hormone biosynthesis and response mechanisms, a comprehensive overview of the manner in which CDPKs participate in phytohormone signaling pathways, regulating nearly all aspects of plant growth, has not yet been undertaken. In this article, we reviewed the structure of CDPKs and the mechanism of their subcellular localization. Some CDPKs were elucidated to influence the intracellular localization of their substrates. Since little work has been done on the interaction between CDPKs and cytokinin signaling pathways, or on newly defined phytohormones such as brassinosteroids, strigolactones and salicylic acid, this paper mainly focused on discussing the integral associations between CDPKs and five plant hormones: auxins, gibberellins, ethylene, jasmonates, and abscisic acid. A perspective on future work is provided at the end.
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Affiliation(s)
- Wuwu Xu
- State Key Laboratory of Hybrid Rice, Key Laboratory for Research and Utilization of Heterosis in Indica Rice, the Ministry of Agriculture, The Yangtze River Valley Hybrid Rice Collaboration & Innovation Center, College of Life Sciences, Wuhan University, Wuhan 430072, China.
| | - Wenchao Huang
- State Key Laboratory of Hybrid Rice, Key Laboratory for Research and Utilization of Heterosis in Indica Rice, the Ministry of Agriculture, The Yangtze River Valley Hybrid Rice Collaboration & Innovation Center, College of Life Sciences, Wuhan University, Wuhan 430072, China.
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48
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Almadanim MC, Gonçalves NM, Rosa MTG, Alexandre BM, Cordeiro AM, Rodrigues M, Saibo NJM, Soares CM, Romão CV, Oliveira MM, Abreu IA. The rice cold-responsive calcium-dependent protein kinase OsCPK17 is regulated by alternative splicing and post-translational modifications. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2017; 1865:231-246. [PMID: 29100789 DOI: 10.1016/j.bbamcr.2017.10.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 10/16/2017] [Accepted: 10/29/2017] [Indexed: 12/12/2022]
Abstract
Plant calcium-dependent protein kinases (CDPKs) are key proteins implicated in calcium-mediated signaling pathways of a wide range of biological events in the organism. The action of each particular CDPK is strictly regulated by many mechanisms in order to ensure an accurate signal translation and the activation of the adequate response processes. In this work, we investigated the regulation of a CDPK involved in rice cold stress response, OsCPK17, to better understand its mode of action. We identified two new alternative splicing (AS) mRNA forms of OsCPK17 encoding truncated versions of the protein, missing the CDPK activation domain. We analyzed the expression patterns of all AS variants in rice tissues and examined their subcellular localization in onion epidermal cells. The results indicate that the AS of OsCPK17 putatively originates truncated forms of the protein with distinct functions, and different subcellular and tissue distributions. Additionally, we addressed the regulation of OsCPK17 by post-translational modifications in several in vitro experiments. Our analysis indicated that OsCPK17 activity depends on its structural rearrangement induced by calcium binding, and that the protein can be autophosphorylated. The identified phosphorylation sites mostly populate the OsCPK17 N-terminal domain. Exceptions are phosphosites T107 and S136 in the kinase domain and S558 in the C-terminal domain. These phosphosites seem conserved in CDPKs and may reflect a common regulatory mechanism for this protein family.
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Affiliation(s)
- M Cecília Almadanim
- ITQB-NOVA, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República, 2780-157 Oeiras, Portugal
| | - Nuno M Gonçalves
- ITQB-NOVA, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República, 2780-157 Oeiras, Portugal
| | - Margarida T G Rosa
- ITQB-NOVA, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República, 2780-157 Oeiras, Portugal
| | - Bruno M Alexandre
- IBET, Instituto de Biologia Experimental e Tecnológica, 2780-157 Oeiras, Portugal
| | - André M Cordeiro
- ITQB-NOVA, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República, 2780-157 Oeiras, Portugal
| | - Mafalda Rodrigues
- ITQB-NOVA, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República, 2780-157 Oeiras, Portugal
| | - Nelson J M Saibo
- ITQB-NOVA, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República, 2780-157 Oeiras, Portugal; IBET, Instituto de Biologia Experimental e Tecnológica, 2780-157 Oeiras, Portugal
| | - Cláudio M Soares
- ITQB-NOVA, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República, 2780-157 Oeiras, Portugal
| | - Célia V Romão
- ITQB-NOVA, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República, 2780-157 Oeiras, Portugal
| | - M Margarida Oliveira
- ITQB-NOVA, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República, 2780-157 Oeiras, Portugal; IBET, Instituto de Biologia Experimental e Tecnológica, 2780-157 Oeiras, Portugal
| | - Isabel A Abreu
- ITQB-NOVA, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Avenida da República, 2780-157 Oeiras, Portugal; IBET, Instituto de Biologia Experimental e Tecnológica, 2780-157 Oeiras, Portugal.
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Almadanim MC, Alexandre BM, Rosa MTG, Sapeta H, Leitão AE, Ramalho JC, Lam TT, Negrão S, Abreu IA, Oliveira MM. Rice calcium-dependent protein kinase OsCPK17 targets plasma membrane intrinsic protein and sucrose-phosphate synthase and is required for a proper cold stress response. PLANT, CELL & ENVIRONMENT 2017; 40:1197-1213. [PMID: 28102545 DOI: 10.1111/pce.12916] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 01/10/2017] [Accepted: 01/15/2017] [Indexed: 05/20/2023]
Abstract
Calcium-dependent protein kinases (CDPKs) are involved in plant tolerance mechanisms to abiotic stresses. Although CDPKs are recognized as key messengers in signal transduction, the specific role of most members of this family remains unknown. Here, we test the hypothesis that OsCPK17 plays a role in rice cold stress response by analysing OsCPK17 knockout, silencing and overexpressing rice lines under low temperature. Altered OsCPK17 gene expression compromises cold tolerance performance, without affecting the expression of key cold stress-inducible genes. A comparative phosphoproteomic approach led to the identification of six potential in vivo OsCPK17 targets, which are associated with sugar and nitrogen metabolism, and with osmotic regulation. To test direct interaction, in vitro kinase assays were performed, showing that the sucrose-phosphate synthase OsSPS4 and the aquaporin OsPIP2;1/OsPIP2;6 are phosphorylated by OsCPK17 in a calcium-dependent manner. Altogether, our data indicates that OsCPK17 is required for a proper cold stress response in rice, likely affecting the activity of membrane channels and sugar metabolism.
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Affiliation(s)
- M Cecília Almadanim
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157, Oeiras, Portugal
| | - Bruno M Alexandre
- Instituto de Biologia Experimental e Tecnológica, 2780-157, Oeiras, Portugal
| | - Margarida T G Rosa
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157, Oeiras, Portugal
| | - Helena Sapeta
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157, Oeiras, Portugal
| | - António E Leitão
- Plant Stress and Biodiversity, Linking Landscape, Environment, Agriculture and Food (LEAF), Dept. Recursos Naturais, Ambiente e Território (DRAT), Instituto Superior de Agronomia, Universidade de Lisboa, 2784-505, Oeiras, Portugal
| | - José C Ramalho
- Plant Stress and Biodiversity, Linking Landscape, Environment, Agriculture and Food (LEAF), Dept. Recursos Naturais, Ambiente e Território (DRAT), Instituto Superior de Agronomia, Universidade de Lisboa, 2784-505, Oeiras, Portugal
| | - TuKiet T Lam
- Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT, 06520-8024, USA
- MS and Proteomics Resource, WM Keck Foundation Biotechnology Resource Laboratory, Yale University, New Haven, CT, 06520-8024, USA
| | - Sónia Negrão
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157, Oeiras, Portugal
- Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Isabel A Abreu
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157, Oeiras, Portugal
- Instituto de Biologia Experimental e Tecnológica, 2780-157, Oeiras, Portugal
| | - M Margarida Oliveira
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157, Oeiras, Portugal
- Instituto de Biologia Experimental e Tecnológica, 2780-157, Oeiras, Portugal
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Corratgé-Faillie C, Ronzier E, Sanchez F, Prado K, Kim JH, Lanciano S, Leonhardt N, Lacombe B, Xiong TC. The Arabidopsis guard cell outward potassium channel GORK is regulated by CPK33. FEBS Lett 2017; 591:1982-1992. [PMID: 28543075 DOI: 10.1002/1873-3468.12687] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 05/10/2017] [Accepted: 05/12/2017] [Indexed: 11/10/2022]
Abstract
A complex signaling network involving voltage-gated potassium channels from the Shaker family contributes to the regulation of stomatal aperture. Several kinases and phosphatases have been shown to be crucial for ABA-dependent regulation of the ion transporters. To date, the Ca2+ -dependent regulation of Shaker channels by Ca2+ -dependent protein kinases (CPKs) is still elusive. A functional screen in Xenopus oocytes was launched to identify such CPKs able to regulate the three main guard cell Shaker channels KAT1, KAT2, and GORK. Seven guard cell CPKs were tested and multiple CPK/Shaker couples were identified. Further work on CPK33 indicates that GORK activity is enhanced by CPK33 and unaffected by a nonfunctional CPK33 (CPK33-K102M). Furthermore, Ca2+ -induced stomatal closure is impaired in two cpk33 mutant plants.
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Affiliation(s)
- Claire Corratgé-Faillie
- Biochimie et Physiologie Moléculaire des Plantes, UMR CNRS/INRA/Montpellier SupAgro/UM, Montpellier, France
| | - Elsa Ronzier
- Biochimie et Physiologie Moléculaire des Plantes, UMR CNRS/INRA/Montpellier SupAgro/UM, Montpellier, France
| | - Frédéric Sanchez
- Biochimie et Physiologie Moléculaire des Plantes, UMR CNRS/INRA/Montpellier SupAgro/UM, Montpellier, France
| | - Karine Prado
- Biochimie et Physiologie Moléculaire des Plantes, UMR CNRS/INRA/Montpellier SupAgro/UM, Montpellier, France
| | - Jeong-Hyeon Kim
- Biochimie et Physiologie Moléculaire des Plantes, UMR CNRS/INRA/Montpellier SupAgro/UM, Montpellier, France
| | - Sophie Lanciano
- Biochimie et Physiologie Moléculaire des Plantes, UMR CNRS/INRA/Montpellier SupAgro/UM, Montpellier, France
| | - Nathalie Leonhardt
- UMR7265, Laboratoire de Biologie du Développement des Plantes, Service de Biologie Végétale et de Microbiologie Environnementales, Institut de Biologie Environnementale et Biotechnologie, CNRS-CEA-Université Aix-Marseille, Saint-Paul-lez-Durance, France
| | - Benoît Lacombe
- Biochimie et Physiologie Moléculaire des Plantes, UMR CNRS/INRA/Montpellier SupAgro/UM, Montpellier, France
| | - Tou Cheu Xiong
- Biochimie et Physiologie Moléculaire des Plantes, UMR CNRS/INRA/Montpellier SupAgro/UM, Montpellier, France
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