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Seth T, Asija S, Umar S, Gupta R. The intricate role of lipids in orchestrating plant defense responses. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 338:111904. [PMID: 37925973 DOI: 10.1016/j.plantsci.2023.111904] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 10/08/2023] [Accepted: 10/20/2023] [Indexed: 11/07/2023]
Abstract
Plants are exposed to a variety of pests and pathogens that reduce crop productivity. Plants respond to such attacks by activating a sophisticated signaling cascade that initiates with the recognition of pests/pathogens and may culminate into a resistance response. Lipids, being the structural components of cellular membranes, function as mediators of these signaling cascades and thus are instrumental in the regulation of plant defense responses. Accumulating evidence indicates that various lipids such as oxylipins, phospholipids, glycolipids, glycerolipids, sterols, and sphingolipids, among others, are involved in mediating cell signaling during plant-pathogen interaction with each lipid exhibiting a specific biological relevance, follows a distinct biosynthetic mechanism, and contributes to specific signaling cascade(s). Omics studies have further confirmed the involvement of lipid biosynthetic enzymes including the family of phospholipases in the production of defense signaling molecules subsequent to pathogen attack. Lipids participate in stress signaling by (1) mediating the signal transduction, (2) acting as precursors for bioactive molecules, (3) regulating ROS formation, and (4) interacting with various phytohormones to orchestrate the defense response in plants. In this review, we present the biosynthetic pathways of different lipids, their specific functions, and their intricate roles upstream and downstream of phytohormones under pathogen attack to get a deeper insight into the molecular mechanism of lipids-mediated regulation of defense responses in plants.
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Affiliation(s)
- Tanashvi Seth
- Department of Botany, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India
| | - Sejal Asija
- Department of Botany, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India
| | - Shahid Umar
- Department of Botany, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110062, India
| | - Ravi Gupta
- College of General Education, Kookmin University, Seoul 02707, South Korea.
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Takasato S, Bando T, Ohnishi K, Tsuzuki M, Hikichi Y, Kiba A. Phosphatidylinositol-phospholipase C3 negatively regulates the hypersensitive response via complex signaling with MAP kinase, phytohormones, and reactive oxygen species in Nicotiana benthamiana. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:4721-4735. [PMID: 37191942 PMCID: PMC10433933 DOI: 10.1093/jxb/erad184] [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: 08/31/2022] [Accepted: 05/15/2023] [Indexed: 05/17/2023]
Abstract
Phospholipid signaling plays important roles in plant immune responses. Here, we focused on two phospholipase C3 (PLC3) orthologs in the Nicotiana benthamiana genome, NbPLC3-1 and NbPLC3-2. We generated NbPLC3-1 and NbPLC3-2-double-silenced plants (NbPLC3s-silenced plants). In NbPLC3s-silenced plants challenged with Ralstonia solanacearum 8107, induction of hypersensitive response (HR)-related cell death and bacterial population reduction was accelerated, and the expression level of Nbhin1, a HR marker gene, was enhanced. Furthermore, the expression levels of genes involved in salicylic acid and jasmonic acid signaling drastically increased, reactive oxygen species production was accelerated, and NbMEK2-induced HR-related cell death was also enhanced. Accelerated HR-related cell death was also observed by bacterial pathogens Pseudomonas cichorii, P. syringae, bacterial AvrA, oomycete INF1, and TMGMV-CP with L1 in NbPLC3s-silenced plants. Although HR-related cell death was accelerated, the bacterial population was not reduced in double NbPLC3s and NbCoi1-suppressed plants nor in NbPLC3s-silenced NahG plants. HR-related cell death acceleration and bacterial population reduction resulting from NbPLC3s-silencing were compromised by the concomitant suppression of either NbPLC3s and NbrbohB (respiratory oxidase homolog B) or NbPLC3s and NbMEK2 (mitogen activated protein kinase kinase 2). Thus, NbPLC3s may negatively regulate both HR-related cell death and disease resistance through MAP kinase- and reactive oxygen species-dependent signaling. Disease resistance was also regulated by NbPLC3s through jasmonic acid- and salicylic acid-dependent pathways.
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Affiliation(s)
- Shiori Takasato
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture and Marine Science Kochi University, Nankoku, Kochi 783-8502, Japan
| | - Takuya Bando
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture and Marine Science Kochi University, Nankoku, Kochi 783-8502, Japan
| | - Kouhei Ohnishi
- Laboratory of Defense in Plant–Pathogen Interactions, Research Institute of Molecular Genetics, Kochi University, Nankoku, Kochi 783-8502, Japan
| | - Masayuki Tsuzuki
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture and Marine Science Kochi University, Nankoku, Kochi 783-8502, Japan
| | - Yasufumi Hikichi
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture and Marine Science Kochi University, Nankoku, Kochi 783-8502, Japan
| | - Akinori Kiba
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture and Marine Science Kochi University, Nankoku, Kochi 783-8502, Japan
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Pei M, Xie X, Peng B, Chen X, Chen Y, Li Y, Wang Z, Lu G. Identification and Expression Analysis of Phosphatidylinositol Transfer Proteins Genes in Rice. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12112122. [PMID: 37299101 DOI: 10.3390/plants12112122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/22/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023]
Abstract
The family of phosphatidylinositol transfer proteins (PITPs) is able to bind specific lipids to carry out various biological functions throughout different stages of plant life. But the function of PITPs in rice plant is unclear. In this study, 30 PITPs were identified from rice genome, which showed differences in physicochemical properties, gene structure, conservation domains, and subcellular localization. The promoter region of the OsPITPs genes included at least one type of hormone response element, such as methyl jasmonate (Me JA) and salicylic acid (SA). Furthermore, the expression level of OsML-1, OsSEC14-3, OsSEC14-4, OsSEC14-15, and OsSEC14-19 genes were significantly affected by infection of rice blast fungus Magnaporthe oryzae. Based on these findings, it is possible that OsPITPs may be involved in rice innate immunity in response to M. oryzae infection through the Me JA and SA pathway.
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Affiliation(s)
- Mengtian Pei
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xuze Xie
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Baoyi Peng
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xinchi Chen
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yixuan Chen
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Ya Li
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Zonghua Wang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Institute of Oceanography, Minjiang University, Fuzhou 350108, China
| | - Guodong Lu
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou 350002, China
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Mora-Ocampo IY, Pirovani CP, Luz EDMN, Rêgo APB, Silva EMA, Rhodes-Valbuena M, Corrêa RX. Ceratocystis cacaofunesta differentially modulates the proteome in xylem-enriched tissue of cocoa genotypes with contrasting resistance to Ceratocystis wilt. PLANTA 2021; 254:94. [PMID: 34642817 DOI: 10.1007/s00425-021-03747-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 09/26/2021] [Indexed: 06/13/2023]
Abstract
Decreased accumulation of polyphenol oxidase, H2O2 accumulation, effective regulation of programmed cell death, and a protein predicted as allergenic can play key roles in cacao defense against Ceratocystis cacaofunesta. Ceratocystis wilt, caused by the fungus Ceratocystis cacaofunesta, has destroyed millions of Theobroma cacao trees in several countries of the Americas. Through proteomics, systems biology, and enzymatic analyses of infected stems, it was possible to infer mechanisms used by resistant (TSH1188) and susceptible (CCN51) cacao genotypes during infection. Protein extraction from xylem-enriched tissue of stems inoculated with the fungus and their controls 1 day after inoculation was carried out, followed by separation through two-dimensional gel electrophoresis and identification by mass spectrometry. Enzyme activity was determined at 1, 3, 7 and 15 days after inoculation. A total of 50 differentially accumulated distinct proteins were identified in the treatments of both genotypes and were classified into 10 different categories. An interaction network between homologous proteins from Arabidospsis thaliana was generated for each genotype, using the STRING database and Cytoscape software. Primary metabolism processes were apparently repressed in both genotypes. The resistance factors suggested for genotype TSH1188 were: H2O2 accumulation, effective regulation of programmed cell death, production of phytoalexins derived from tryptophan and furanocoumarins, and participation of a predicted allergenic protein with probable ribonuclease function inhibiting the germination and propagation of the fungus. In the susceptible genotype, it is possible that its recognition and signaling mechanism through proteins from the SEC14 family is easily overcome by the pathogen. Our results will help to better understand the interaction between cacao and one of its most aggressive pathogens, to create disease control strategies.
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Affiliation(s)
- Irma Y Mora-Ocampo
- Departamento de Ciências Biológicas (DCB), Centro de Biotecnologia e Genética (CBG), Universidade Estadual de Santa Cruz (UESC), Ilhéus, BA, 45662-900, Brazil
| | - Carlos P Pirovani
- Departamento de Ciências Biológicas (DCB), Centro de Biotecnologia e Genética (CBG), Universidade Estadual de Santa Cruz (UESC), Ilhéus, BA, 45662-900, Brazil
| | - Edna D M N Luz
- Comissão Executiva de Planejamento da Lavoura Cacaueira (CEPLAC), Centro de Pesquisas do Cacau (CEPEC), Itabuna, BA, 45600-919, Brazil
| | - Angra P B Rêgo
- Departamento de Ciências Biológicas (DCB), Centro de Biotecnologia e Genética (CBG), Universidade Estadual de Santa Cruz (UESC), Ilhéus, BA, 45662-900, Brazil
| | - Edson M A Silva
- Departamento de Ciências Biológicas (DCB), Centro de Biotecnologia e Genética (CBG), Universidade Estadual de Santa Cruz (UESC), Ilhéus, BA, 45662-900, Brazil
| | - Mateo Rhodes-Valbuena
- Departamento de Ciências Biológicas (DCB), Centro de Biotecnologia e Genética (CBG), Universidade Estadual de Santa Cruz (UESC), Ilhéus, BA, 45662-900, Brazil
| | - Ronan X Corrêa
- Departamento de Ciências Biológicas (DCB), Centro de Biotecnologia e Genética (CBG), Universidade Estadual de Santa Cruz (UESC), Ilhéus, BA, 45662-900, Brazil.
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Tagami S, Ohnishi K, Hikichi Y, Kiba A. Trigalactosyldiacylglycerol 3 protein orthologs are required for basal disease resistance in Nicotiana benthamiana. PLANT BIOTECHNOLOGY (TOKYO, JAPAN) 2021; 38:373-378. [PMID: 34782825 PMCID: PMC8562578 DOI: 10.5511/plantbiotechnology.21.0624a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 06/24/2021] [Indexed: 06/13/2023]
Abstract
Phosphatidic acid plays an important role in Nicotiana benthamiana immune responses against phytopathogenic bacteria. We analyzed the contributions of endoplasmic reticulum-derived chloroplast phospholipids, including phosphatidic acid, to the resistance of N. benthamiana against Ralstonia solanacearum. Here, we focused on trigalactosyldiacylglycerol 3 (TGD3) protein as a candidate required for phosphatidic acid signaling. On the basis of Arabidopsis thaliana TGD3 sequences, we identified two putative TGD3 orthologs in the N. benthamiana genome, NbTGD3-1 and NbTGD3-2. To address the role of TGD3s in plant defense responses, we created double NbTGD3-silenced plants using virus-induced gene silencing. The NbTGD3-silenced plants showed a moderately reduced growth phenotype. Bacterial growth and the appearance of bacterial wilt disease were accelerated in NbTGD3-silenced plants, compared with control plants, challenged with R. solanacearum. The NbTGD3-silenced plants showed reduced both expression of allene oxide synthase that encoded jasmonic acid biosynthetic enzyme and NbPR-4, a marker gene for jasmonic acid signaling, after inoculation with R. solanacearum. Thus, NbTGD3-mediated endoplasmic reticulum-chloroplast lipid transport might be required for jasmonic acid signaling-mediated basal disease resistance in N. benthamiana.
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Affiliation(s)
- Shuhei Tagami
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku, Kochi 783-8502, Japan
| | - Kouhei Ohnishi
- Research Institute of Molecular Genetics, Kochi University, Nankoku, Kochi 783-8502, Japan
| | - Yasufumi Hikichi
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku, Kochi 783-8502, Japan
| | - Akinori Kiba
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku, Kochi 783-8502, Japan
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Wu Q, Fu J, Sun J, Wang X, Tang X, Lu W, Tan C, Li L, Deng X, Xu Q. A plant CitPITP1 protein-coding exon sequence serves as a promoter in bacteria. J Biotechnol 2021; 339:1-13. [PMID: 34298024 DOI: 10.1016/j.jbiotec.2021.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 07/17/2021] [Accepted: 07/18/2021] [Indexed: 11/19/2022]
Abstract
Genetic manipulation of plant genes in prokaryotes has been widely used in molecular biology, but the function of a DNA sequence is far from being fully known. Here, we discovered that a plant protein-coding gene containing the CRAL_TRIO domain serves as a promoter in bacteria. We firstly characterized CitPITP1 from Citrus, which contains the CRAL_TRIO domain, and identified a 64-bp sequence (key64) that is critical for prokaryotic promoter activity. In vitro experiments indicated that the bacterial RNA polymerase subunit RpoD specifically binds to key64. We then expanded our research to fungi, plant and animal species to identify key64-like sequences. Five such prokaryotic promoters were isolated from Amborella, Rice, Arabidopsis and Citrus. Two conserved motifs were identified, and mutation analysis indicated that the nucleotides at positions 7, 29 and 30 are crucial for key64-like transcription activity. We detected full-length recombinant CitPITP1 from E. coli, and visualized a CitPITP1-GFP fusion protein in plant cells, supporting the idea that CitPITP1 encodes a protein. However, although exon 4 of CitPITP1 contained key64, it did not demonstrate promoter activity in plants. Our study describes a new basal promoter, provides evidence for neofunction of gene elements across different kingdoms, and provides new knowledge for the modular design of promoters.
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Affiliation(s)
- Qingjiang Wu
- Key Laboratory of Horticultural Plant Biology of Ministry of Education, Huazhong Agricultural University, Wuhan, 430000, China
| | - Jialing Fu
- Key Laboratory of Horticultural Plant Biology of Ministry of Education, Huazhong Agricultural University, Wuhan, 430000, China
| | - Juan Sun
- Key Laboratory of Horticultural Plant Biology of Ministry of Education, Huazhong Agricultural University, Wuhan, 430000, China
| | - Xia Wang
- Key Laboratory of Horticultural Plant Biology of Ministry of Education, Huazhong Agricultural University, Wuhan, 430000, China
| | - Xiaomei Tang
- Key Laboratory of Horticultural Plant Biology of Ministry of Education, Huazhong Agricultural University, Wuhan, 430000, China
| | - Wenjia Lu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430000, China
| | - Chen Tan
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, 430000, China
| | - Li Li
- Plant Breeding and Genetics Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA; Robert W. Holley Center for Agriculture and Health, USDA-Agricultural Research Service, Cornell University, Ithaca, NY, 14853, USA
| | - Xiuxin Deng
- Key Laboratory of Horticultural Plant Biology of Ministry of Education, Huazhong Agricultural University, Wuhan, 430000, China
| | - Qiang Xu
- Key Laboratory of Horticultural Plant Biology of Ministry of Education, Huazhong Agricultural University, Wuhan, 430000, China.
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Cavaco AR, Matos AR, Figueiredo A. Speaking the language of lipids: the cross-talk between plants and pathogens in defence and disease. Cell Mol Life Sci 2021; 78:4399-4415. [PMID: 33638652 PMCID: PMC11073031 DOI: 10.1007/s00018-021-03791-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 01/21/2021] [Accepted: 02/12/2021] [Indexed: 12/26/2022]
Abstract
Lipids and fatty acids play crucial roles in plant immunity, which have been highlighted over the past few decades. An increasing number of studies have shown that these molecules are pivotal in the interactions between plants and their diverse pathogens. The roles played by plant lipids fit in a wide spectrum ranging from the first physical barrier encountered by the pathogens, the cuticle, to the signalling pathways that trigger different immune responses and expression of defence-related genes, mediated by several lipid molecules. Moreover, lipids have been arising as candidate biomarkers of resistance or susceptibility to different pathogens. Studies on the apoplast and extracellular vesicles have been highlighting the possible role of lipids in the intercellular communication and the establishment of systemic acquired resistance during plant-pathogen interactions. From the pathogen perspective, lipid metabolism and specific lipid molecules play pivotal roles in the pathogen's life cycle completion, being crucial during recognition by the plant and evasion from the host immune system, therefore potentiating infection. Studies conducted in the last years have contributed to a better understanding of the language of lipids during the cross-talk between plants and pathogens. However, it is essential to continue exploring the knowledge brought up to light by transcriptomics and proteomics studies towards the elucidation of lipid signalling processes during defence and disease. In this review, we present an updated overview on lipids associated to plant-pathogen interactions, exploiting their roles from the two sides of this battle.
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Affiliation(s)
- Ana Rita Cavaco
- Biosystems and Integrative Sciences Institute (BioISI), Faculty of Science, University of Lisbon, Lisbon, Portugal
| | - Ana Rita Matos
- Biosystems and Integrative Sciences Institute (BioISI), Faculty of Science, University of Lisbon, Lisbon, Portugal
| | - Andreia Figueiredo
- Biosystems and Integrative Sciences Institute (BioISI), Faculty of Science, University of Lisbon, Lisbon, Portugal.
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Kiba A, Fukui K, Mitani M, Galis I, Hojo Y, Shinya T, Ohnishi K, Hikichi Y. Silencing of phosphoinositide dependent protein kinase orthologs reduces hypersensitive cell death in Nicotiana benthamiana. PLANT BIOTECHNOLOGY (TOKYO, JAPAN) 2020; 37:363-367. [PMID: 33088202 PMCID: PMC7557664 DOI: 10.5511/plantbiotechnology.20.0511b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 05/11/2020] [Indexed: 05/27/2023]
Abstract
Phosphatidic acid plays an important role in plant immune responses against phytopathogenic bacteria in Nicotiana benthamiana. Here we focused on phosphoinositide dependent protein kinases (PDKs) as a candidate required for phosphatidic acid signaling. Based on Arabidopsis PDK sequences, we identified four putative PDK orthologs in N. benthamiana genome. To address the role of PDKs in plant defense responses, we created all four NbPDKs-silenced plants by virus-induced gene silencing. the NbPDKs-silenced plants showed a moderately reduced growth phenotype. Induction of hypersensitive cell death was compromised in the NbPDKs-silenced plants challenged with Ralstonia solanacearum. The hypersensitive cell death induced by bacterial effectors was also reduced in the NbPDKs-silenced plants. the NbPDKs-silenced plants showed decreased production of salicylic acid, jasmonic acid and jasmonoyl-L-isoleucine, as well as hydrogen peroxide after inoculation with R. solanacearum. These results suggest that NbPDKs might have an important role in the regulation of the hypersensitive cell death via plant hormone signaling and oxidative burst.
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Affiliation(s)
- Akinori Kiba
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku, Kochi 783-8502, Japan
| | - Kotoko Fukui
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku, Kochi 783-8502, Japan
| | - Maki Mitani
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku, Kochi 783-8502, Japan
| | - Ivan Galis
- Institute of Plant Science and Resources, Okayama University, Okayama 710-0046, Japan
| | - Yuko Hojo
- Institute of Plant Science and Resources, Okayama University, Okayama 710-0046, Japan
| | - Tomonori Shinya
- Institute of Plant Science and Resources, Okayama University, Okayama 710-0046, Japan
| | - Kouhei Ohnishi
- Research Institute of Molecular Genetics, Kochi University, Nankoku, Kochi 783-8502, Japan
| | - Yasufumi Hikichi
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku, Kochi 783-8502, Japan
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Kiba A, Nakano M, Hosokawa M, Galis I, Nakatani H, Shinya T, Ohnishi K, Hikichi Y. Phosphatidylinositol-phospholipase C2 regulates pattern-triggered immunity in Nicotiana benthamiana. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:5027-5038. [PMID: 32412590 PMCID: PMC7410187 DOI: 10.1093/jxb/eraa233] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 05/11/2020] [Indexed: 05/27/2023]
Abstract
Phospholipid signaling plays an important role in plant immune responses against phytopathogenic bacteria in Nicotiana benthamiana. Here, we isolated two phospholipase C2 (PLC2) orthologs in the N. benthamiana genome, designated as PLC2-1 and 2-2. Both NbPLC2-1 and NbPLC2-2 were expressed in most tissues and were induced by infiltration with bacteria and flg22. NbPLC2-1 and NbPLC2-2 (NbPLC2s) double-silenced plants showed a moderately reduced growth phenotype. The induction of the hypersensitive response was not affected, but bacterial growth and the appearance of bacterial wilt were accelerated in NbPLC2s-silenced plants when they were challenged with a virulent strain of Ralstonia solanacearum that was compatible with N. benthamiana. NbPLC2s-silenced plants showed reduced expression levels of NbPR-4, a marker gene for jasmonic acid signaling, and decreased jasmonic acid and jasmonoyl-L-isoleucine contents after inoculation with R. solanacearum. The induction of pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI) marker genes was reduced in NbPLC2s-silenced plants after infiltration with R. solanacearum or Pseudomonas fluorescens. Accordingly, the resistance induced by flg22 was compromised in NbPLC2s-silenced plants. In addition, the expression of flg22-induced PTI marker genes, the oxidative burst, stomatal closure, and callose deposition were all reduced in the silenced plants. Thus, NbPLC2s might have important roles in pre- and post-invasive defenses, namely in the induction of PTI.
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Affiliation(s)
- Akinori Kiba
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku, Kochi, Japan
| | - Masahito Nakano
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku, Kochi, Japan
- Okayama Prefectural Technology Center for Agriculture, Forestry, and Fisheries, 7549–1 Kibichuo-cho, Kaga-gun, Okayama, Japan
| | - Miki Hosokawa
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku, Kochi, Japan
| | - Ivan Galis
- Institute of Plant Science and Resources, Okayama University, Okayama, Japan
| | - Hiroko Nakatani
- Institute of Plant Science and Resources, Okayama University, Okayama, Japan
| | - Tomonori Shinya
- Institute of Plant Science and Resources, Okayama University, Okayama, Japan
| | - Kouhei Ohnishi
- Laboratory of Defense in Plant–Pathogen Interactions, Research Institute of Molecular Genetics, Kochi University, Nankoku, Kochi, Japan
| | - Yasufumi Hikichi
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku, Kochi, Japan
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10
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Hua-Ying M, Wen-Ju W, Wei-Hua S, Ya-Chun S, Feng L, Cong-Na L, Ling W, Xu Z, Li-Ping X, You-Xiong Q. Genome-wide identification, phylogeny, and expression analysis of Sec14-like PITP gene family in sugarcane. PLANT CELL REPORTS 2019; 38:637-655. [PMID: 30747272 DOI: 10.1007/s00299-019-02394-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 02/02/2019] [Indexed: 06/09/2023]
Abstract
Six Sec14-like PITP genes from sugarcane were identified, two of them were cloned, and their biological functions were characterized indicating their involvement in plant defense against biotic and abiotic stresses. Sec14, a phosphatidylinositol transfer protein (PITP) is widely present in eukaryotes. In this study, the structure and expression patterns of six Sec14-like PITP genes (ScSEC14-1, ScSEC14p, ScSFH1, ScSFH2, ScPATL1, and ScPATL2) from sugarcane were analyzed, and two of them (ScSEC14-1 and ScSEC14p) were cloned and functionally verified. Phylogenetic analysis divided these genes into four groups, including group I (ScSFH1 and ScSFH2), group II (ScPATL1 and ScPATL2), Group III (ScSEC14p), and group V (ScSEC14-1). qRT-PCR analysis showed tissue-specific expression of these genes, primarily in the root, leaf, and bud tissues. They responded differently to SA, MeJA, and ABA stresses. ScSEC14-1, ScSEC14p, and ScSFH2 were upregulated by CuCl2 and CdCl2, while ScSEC14-1, ScSFH1, ScSFH2, and ScPATL1 were upregulated by PEG and NaCl. When infected by Sporisorium scitamineum, the transcripts of ScSFH1, ScSFH2, ScPATL1, and ScPATL2 were upregulated in the resistant genotype Yacheng 05-179, while those of ScSEC14-1 and ScSEC14p were upregulated in the susceptible genotype ROC22. Subcellular localization showed that ScSEC14-1 and ScSEC14p were mainly localized in the plasma membrane and cytoplasm. Enhanced growth of Escherichia coli BL21 cells expressing ScSEC14-1 and ScSEC14p showed high tolerance to NaCl and mannitol stresses. The transient overexpression of ScSEC14-1 and ScSEC14p in Nicotiana benthamiana leaves enhanced its resistance to the infection of tobacco pathogens Ralstonia solanacearum and Fusarium solani var. coeruleum. We can conclude the involvement of ScSEC14-1 and ScSEC14p in the defense against biotic and abiotic stresses, which should facilitate further research on Sec14-like PITP gene family, especially its regulatory mechanisms in sugarcane.
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Affiliation(s)
- Mao Hua-Ying
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Wang Wen-Ju
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Su Wei-Hua
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Su Ya-Chun
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Liu Feng
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Li Cong-Na
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Wang Ling
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Zhang Xu
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Xu Li-Ping
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Que You-Xiong
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
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11
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Zhou H, Duan H, Liu Y, Sun X, Zhao J, Lin H. Patellin protein family functions in plant development and stress response. JOURNAL OF PLANT PHYSIOLOGY 2019; 234-235:94-97. [PMID: 30690193 DOI: 10.1016/j.jplph.2019.01.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 01/21/2019] [Accepted: 01/22/2019] [Indexed: 05/24/2023]
Abstract
The plant patellin (PATL) proteins are yeast Sec14 protein (Sec14p)-like phosphatidylinositol transfer proteins (PITPs), which are widely distributed across the plant kingdom. The model plant Arabidopsis has six PATL members (designated as PATL1-PATL6). Accumulated evidence has indicated the involvement of Arabidopsis PATLs in various biological processes. This mini-review briefly summarizes our current knowledge on individual PATLs regarding their roles in plant development and stress tolerance regulation. The elucidation of PATLs' biological function in plants will provide new insights on plant membrane trafficking and its regulatory roles in either plant growth or environmental stress response signaling networks.
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Affiliation(s)
- Huapeng Zhou
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610064, China.
| | - Hongqin Duan
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610064, China
| | - Yunhong Liu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610064, China
| | - Xia Sun
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610064, China
| | - Jinfeng Zhao
- National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Honghui Lin
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610064, China.
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12
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Kiba A, Nakano M, Ohnishi K, Hikichi Y. The SEC14 phospholipid transfer protein regulates pathogen-associated molecular pattern-triggered immunity in Nicotiana benthamiana. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2018; 125:212-218. [PMID: 29475087 DOI: 10.1016/j.plaphy.2018.02.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 01/31/2018] [Accepted: 02/02/2018] [Indexed: 06/08/2023]
Abstract
We previously revealed that the SEC14 phospholipid transfer protein from Nicotiana benthamiana (NbSEC14) has a role in plant immune responses against phytopathogenic bacteria in a hypersensitive response-independent manner. To characterize the role of NbSEC14 on plant immunity, we analyzed the relationship between NbSEC14 and pathogen-associated molecular pattern-triggered immunity (PTI). NbSEC14-silenced plants exhibited down-regulated expression of PTI marker genes (NbAcre31 and NbPti5) after being inoculated with Pseudomonas syringae pv. tabaci. Additionally, we observed accelerated bacterial growth and inhibited expression of PTI marker genes in NbSEC14-silenced plants infected with the hrp-deficient P. syringae pv. tabaci mutant. We used Pseudomonas fluorescens and flg22 as PTI inducers to further examine the association between NbSEC14 and the induction of PTI. The expression of PTI marker genes was compromised in NbSEC14-silenced plants infiltrated with P. fluorescens and flg22. Meanwhile, a cell death-based PTI assay indicated NbSEC14 was required for PTI. Furthermore, callose deposition and disease resistance induced by flg22 were compromised in NbSEC14-silenced plants. These results suggest that NbSEC14 may help regulate the induction of PTI.
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Affiliation(s)
- Akinori Kiba
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku, Kochi 783-8502, Japan.
| | - Masahito Nakano
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku, Kochi 783-8502, Japan; Okayama Prefectural Technology Center for Agriculture, Forestry, and Fisheries, Nankoku, Kochi 783-8502, Japan
| | - Kouhei Ohnishi
- Research Institute of Molecular Genetics, Kochi University, Nankoku, Kochi 783-8502, Japan
| | - Yasufumi Hikichi
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku, Kochi 783-8502, Japan
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13
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Tejos R, Rodriguez-Furlán C, Adamowski M, Sauer M, Norambuena L, Friml J. PATELLINS are regulators of auxin-mediated PIN1 relocation and plant development in Arabidopsis thaliana. J Cell Sci 2018; 131:jcs.204198. [PMID: 28687624 DOI: 10.1242/jcs.204198] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 07/05/2017] [Indexed: 01/02/2023] Open
Abstract
Coordinated cell polarization in developing tissues is a recurrent theme in multicellular organisms. In plants, a directional distribution of the plant hormone auxin is at the core of many developmental programs. A feedback regulation of auxin on the polarized localization of PIN auxin transporters in individual cells has been proposed as a self-organizing mechanism for coordinated tissue polarization, but the molecular mechanisms linking auxin signalling to PIN-dependent auxin transport remain unknown. We used a microarray-based approach to find regulators of the auxin-induced PIN relocation in Arabidopsis thaliana root, and identified a subset of a family of phosphatidylinositol transfer proteins (PITPs), the PATELLINs (PATLs). Here, we show that PATLs are expressed in partially overlapping cell types in different tissues going through mitosis or initiating differentiation programs. PATLs are plasma membrane-associated proteins accumulated in Arabidopsis embryos, primary roots, lateral root primordia and developing stomata. Higher order patl mutants display reduced PIN1 repolarization in response to auxin, shorter root apical meristem, and drastic defects in embryo and seedling development. This suggests that PATLs play a redundant and crucial role in polarity and patterning in Arabidopsis.
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Affiliation(s)
- Ricardo Tejos
- Facultad de Recursos Naturales Renovables, Universidad Arturo Prat, 111093 Iquique, Chile
| | - Cecilia Rodriguez-Furlán
- Plant Molecular Biology Centre, Biology Department, Faculty of Sciences, Universidad de Chile, 7800024 Santiago, Chile
| | - Maciej Adamowski
- Institute of Science and Technology (IST) Austria, 3400 Klosterneuburg, Austria
| | - Michael Sauer
- Department of Plant Physiology, University of Potsdam, D-14476 Potsdam, Germany
| | - Lorena Norambuena
- Plant Molecular Biology Centre, Biology Department, Faculty of Sciences, Universidad de Chile, 7800024 Santiago, Chile
| | - Jiří Friml
- Institute of Science and Technology (IST) Austria, 3400 Klosterneuburg, Austria
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14
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Sumida S, Ito M, Galis I, Nakatani H, Shinya T, Ohnishi K, Hikichi Y, Kiba A. Phosphoinositide 3-kinase participates in l-methionine sulfoximine-induced cell death via salicylic acid mediated signaling in Nicotiana benthamiana. JOURNAL OF PLANT PHYSIOLOGY 2017; 218:167-170. [PMID: 28866325 DOI: 10.1016/j.jplph.2017.07.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 07/26/2017] [Accepted: 07/26/2017] [Indexed: 06/07/2023]
Abstract
Pseudomonas syringae pv. tabaci causes wildfire disease by the action of tabtoxinine-β-lactam (TβL), a non-specific bacterial toxin. To better understand the molecular mechanisms of wildfire disease and its development, we focused on the phosphoinositide 3-kinase in Nicotiana benthamiana (NbPI3K) and its potential role in the disease outbreak, using l-methionine sulfoximine (MSX) as an easily accessible mimic of the TβL action. The NbPI3K-silenced plants showed accelerated induction of cell death and necrotic lesion formation by MSX, and the expression of hin1, marker gene for the programmed cell death, was strongly induced in the plants. However, the accumulation of ammonium ions, caused by MSX inhibition of glutamine sythetase activity, was not affected by the NbPI3K-silencing. Interestingly, the expression of PR-1a, a marker gene for salicylic acid (SA) innate immunity signaling, and accumulation of SA were both enhanced in the NbPI3K-silenced plants. Accordingly, the acceleration of MSX-induced cell death by NbPI3K-silencing was reduced in NahG plants, and by double silencing of NbPI3K together with the NbICS1 encoding a SA-biosynthetic enzyme. As silencing of NbPI3K accelerated the TβL-induced necrotic lesions, and lesions of wildfire disease caused by P. syringae pv. tabaci, these results suggest that the NbPI3K-related pathway might act as a negative regulator of cell death during development of wildfire disease that involves SA-dependent signaling pathway downstream of TβL action in N. benthamiana.
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Affiliation(s)
- Sayuri Sumida
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku 783-8502, Japan
| | - Makoto Ito
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku 783-8502, Japan
| | - Ivan Galis
- Institute of Plant Science and Resources, Okayama University, Okayama 710-0046, Japan
| | - Hiroko Nakatani
- Institute of Plant Science and Resources, Okayama University, Okayama 710-0046, Japan
| | - Tomonori Shinya
- Institute of Plant Science and Resources, Okayama University, Okayama 710-0046, Japan
| | - Kouhei Ohnishi
- Research Institute of Molecular Genetics, Kochi University, Nankoku, Kochi 783-8502, Japan
| | - Yasufumi Hikichi
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku 783-8502, Japan
| | - Akinori Kiba
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku 783-8502, Japan.
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15
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Hikichi Y, Mori Y, Ishikawa S, Hayashi K, Ohnishi K, Kiba A, Kai K. Regulation Involved in Colonization of Intercellular Spaces of Host Plants in Ralstonia solanacearum. FRONTIERS IN PLANT SCIENCE 2017; 8:967. [PMID: 28642776 PMCID: PMC5462968 DOI: 10.3389/fpls.2017.00967] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 05/23/2017] [Indexed: 05/25/2023]
Abstract
A soil-borne bacterium Ralstonia solanacearum invading plant roots first colonizes the intercellular spaces of the root, and eventually enters xylem vessels, where it replicates at high levels leading to wilting symptoms. After invasion into intercellular spaces, R. solanacearum strain OE1-1 attaches to host cells and expression of the hrp genes encoding components of the type III secretion system (T3SS). OE1-1 then constructs T3SS and secrets effectors into host cells, inducing expression of the host gene encoding phosphatidic acid phosphatase. This leads to suppressing plant innate immunity. Then, OE1-1 grows on host cells, inducing quorum sensing (QS). The QS contributes to regulation of OE1-1 colonization of intercellular spaces including mushroom-type biofilm formation on host cells, leading to its virulence. R. solanacearum strains AW1 and K60 produce methyl 3-hydroxypalmitate (3-OH PAME) as a QS signal. The methyltransferase PhcB synthesizes 3-OH PAME. When 3-OH PAME reaches a threshold level, it increases the ability of the histidine kinase PhcS to phosphorylate the response regulator PhcR. This results in elevated levels of functional PhcA, the global virulence regulator. On the other hand, strains OE1-1 and GMI1000 produce methyl 3-hydroxymyristate (3-OH MAME) as a QS signal. Among R. solanacearum strains, the deduced PhcB and PhcS amino acid sequences are related to the production of QS signals. R. solanacearum produces aryl-furanone secondary metabolites, ralfuranones, which are extracellularly secreted and required for its virulence, dependent on the QS. Interestingly, ralfuranones affect the QS feedback loop. Taken together, integrated signaling via ralfuranones influences the QS, contributing to pathogen virulence.
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Affiliation(s)
- Yasufumi Hikichi
- Laboratory of Plant Pathology and Biotechnology, Kochi UniversityKochi, Japan
| | - Yuka Mori
- Laboratory of Plant Pathology and Biotechnology, Kochi UniversityKochi, Japan
| | - Shiho Ishikawa
- Laboratory of Plant Pathology and Biotechnology, Kochi UniversityKochi, Japan
| | - Kazusa Hayashi
- Laboratory of Plant Pathology and Biotechnology, Kochi UniversityKochi, Japan
| | - Kouhei Ohnishi
- Research Institute of Molecular Genetics, Kochi UniversityKochi, Japan
| | - Akinori Kiba
- Laboratory of Plant Pathology and Biotechnology, Kochi UniversityKochi, Japan
| | - Kenji Kai
- Graduate School of Life and Environmental Sciences, Osaka Prefecture UniversityOsaka, Japan
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16
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Wang X, Shan X, Xue C, Wu Y, Su S, Li S, Liu H, Jiang Y, Zhang Y, Yuan Y. Isolation and functional characterization of a cold responsive phosphatidylinositol transfer-associated protein, ZmSEC14p, from maize (Zea may L.). PLANT CELL REPORTS 2016; 35:1671-86. [PMID: 27061906 DOI: 10.1007/s00299-016-1980-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 03/31/2016] [Indexed: 05/10/2023]
Abstract
A Sec14-like protein, ZmSEC14p , from maize was structurally analyzed and functionally tested. Overexpression of ZmSEC14p in transgenic Arabidopsis conferred tolerance to cold stress. Sec14-like proteins are involved in essential biological processes, such as phospholipid metabolism, signal transduction, membrane trafficking, and stress response. Here, we reported a phosphatidylinositol transfer-associated protein, ZmSEC14p (accession no. KT932998), isolated from a cold-tolerant maize inbred line using the cDNA-AFLP approach and RACE-PCR method. Full-length cDNA that consisted of a single open reading frame (ORF) encoded a putative polypeptide of 295 amino acids. The ZmSEC14p protein was mainly localized in the nucleus, and its transcript was induced by cold, salt stresses, and abscisic acid (ABA) treatment in maize leaves and roots. Overexpression of ZmSEC14p in transgenic Arabidopsis conferred tolerance to cold stress. This tolerance was primarily displayed by the increased germination rate, root length, plant survival rate, accumulation of proline, activities of antioxidant enzymes, and the reduction of oxidative damage by reactive oxygen species (ROS). ZmSEC14p overexpression regulated the expression of phosphoinositide-specific phospholipase C, which cleaves phosphatidylinositol 4,5-bisphosphate (PIP2) and generates second messengers (inositol 1,4,5-trisphosphate and 1,2-diacylglycerol) in the phosphoinositide signal transduction pathways. Moreover, up-regulation of some stress-responsive genes such as CBF3, COR6.6, and RD29B in transgenic plants under cold stress could be a possible mechanism for enhancing cold tolerance. Taken together, this study strongly suggests that ZmSEC14p plays an important role in plant tolerance to cold stress.
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Affiliation(s)
- Xiaoyu Wang
- College of Plant Science, Jilin University, Changchun, 130062, China
| | - Xiaohui Shan
- College of Plant Science, Jilin University, Changchun, 130062, China
| | - Chunmei Xue
- College of Plant Science, Jilin University, Changchun, 130062, China
| | - Ying Wu
- College of Plant Science, Jilin University, Changchun, 130062, China
| | - Shengzhong Su
- College of Plant Science, Jilin University, Changchun, 130062, China
| | - Shipeng Li
- College of Plant Science, Jilin University, Changchun, 130062, China
| | - Hongkui Liu
- College of Plant Science, Jilin University, Changchun, 130062, China
| | - Yuan Jiang
- College of Plant Science, Jilin University, Changchun, 130062, China
| | - Yanfei Zhang
- College of Plant Science, Jilin University, Changchun, 130062, China
| | - Yaping Yuan
- College of Plant Science, Jilin University, Changchun, 130062, China.
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17
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Suzuki T, Matsushima C, Nishimura S, Higashiyama T, Sasabe M, Machida Y. Identification of Phosphoinositide-Binding Protein PATELLIN2 as a Substrate of Arabidopsis MPK4 MAP Kinase during Septum Formation in Cytokinesis. PLANT & CELL PHYSIOLOGY 2016; 57:1744-55. [PMID: 27335345 PMCID: PMC4970614 DOI: 10.1093/pcp/pcw098] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 05/05/2016] [Indexed: 05/19/2023]
Abstract
The phosphorylation of proteins by protein kinases controls many cellular and physiological processes, which include intracellular signal transduction. However, the underlying molecular mechanisms of such controls and numerous substrates of protein kinases remain to be characterized. The mitogen-activated protein kinase (MAPK) cascade is of particular importance in a variety of extracellular and intracellular signaling processes. In plant cells, the progression of cytokinesis is an excellent example of an intracellular phenomenon that requires the MAPK cascade. However, the way in which MAPKs control downstream processes during cytokinesis in plant cells remains to be fully determined. We show here that comparisons, by two-dimensional difference gel electrophoresis, of phosphorylated proteins from wild-type Arabidopsis thaliana and mutant plants defective in a MAPK cascade allow identification of substrates of a specific MAPK. Using this method, we identified the PATELLIN2 (PATL2) protein, which has a SEC14 domain, as a substrate of MPK4 MAP kinase. PATL2 was concentrated at the cell division plane, as is MPK4, and had binding affinity for phosphoinositides. This binding affinity was altered after phosphorylation of PATL2 by MPK4, suggesting a role for the MAPK cascade in the formation of cell plates via regeneration of membranes during cytokinesis.
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Affiliation(s)
- Takamasa Suzuki
- Division of Biological Sciences, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602 Japan Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601 Japan JST, ERATO, Higashiyama Live-Holonics Project, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602 Japan Present address: College of Bioscience and Biotechnology, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi 487-8501 Japan
| | - Chiyuki Matsushima
- Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601 Japan
| | - Shingo Nishimura
- Division of Biological Sciences, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602 Japan
| | - Tetsuya Higashiyama
- Division of Biological Sciences, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602 Japan JST, ERATO, Higashiyama Live-Holonics Project, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602 Japan Institute of Transformative Bio-Molecules, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602 Japan
| | - Michiko Sasabe
- Department of Biology, Faculty of Agriculture and Life Science, Hirosaki University, 3 Bunkyo-cho, Hirosaki, 036-8561 Japan
| | - Yasunori Machida
- Division of Biological Sciences, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602 Japan
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18
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Mori Y, Inoue K, Ikeda K, Nakayashiki H, Higashimoto C, Ohnishi K, Kiba A, Hikichi Y. The vascular plant-pathogenic bacterium Ralstonia solanacearum produces biofilms required for its virulence on the surfaces of tomato cells adjacent to intercellular spaces. MOLECULAR PLANT PATHOLOGY 2016; 17:890-902. [PMID: 26609568 PMCID: PMC6638453 DOI: 10.1111/mpp.12335] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 10/08/2015] [Accepted: 10/13/2015] [Indexed: 05/18/2023]
Abstract
The mechanism of colonization of intercellular spaces by the soil-borne and vascular plant-pathogenic bacterium Ralstonia solanacearum strain OE1-1 after invasion into host plants remains unclear. To analyse the behaviour of OE1-1 cells in intercellular spaces, tomato leaves with the lower epidermis layers excised after infiltration with OE1-1 were observed under a scanning electron microscope. OE1-1 cells formed microcolonies on the surfaces of tomato cells adjacent to intercellular spaces, and then aggregated surrounded by an extracellular matrix, forming mature biofilm structures. Furthermore, OE1-1 cells produced mushroom-type biofilms when incubated in fluids of apoplasts including intercellular spaces, but not xylem fluids from tomato plants. This is the first report of biofilm formation by R. solanacearum on host plant cells after invasion into intercellular spaces and mushroom-type biofilms produced by R. solanacearum in vitro. Sugar application led to enhanced biofilm formation by OE1-1. Mutation of lecM encoding a lectin, RS-IIL, which reportedly exhibits affinity for these sugars, led to a significant decrease in biofilm formation. Colonization in intercellular spaces was significantly decreased in the lecM mutant, leading to a loss of virulence on tomato plants. Complementation of the lecM mutant with native lecM resulted in the recovery of mushroom-type biofilms and virulence on tomato plants. Together, our findings indicate that OE1-1 produces mature biofilms on the surfaces of tomato cells after invasion into intercellular spaces. RS-IIL may contribute to biofilm formation by OE1-1, which is required for OE1-1 virulence.
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Affiliation(s)
- Yuka Mori
- Laboratory of Plant Pathology and Biotechnology, Kochi University, Nankoku, Kochi 783-8502, Japan
| | - Kanako Inoue
- Research Center for Ultra-High Voltage Electron Microscopy, Osaka University, Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Kenichi Ikeda
- Graduate School of Agricultural Science, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe, Hyogo 657-8501, Japan
| | - Hitoshi Nakayashiki
- Graduate School of Agricultural Science, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe, Hyogo 657-8501, Japan
| | - Chikaki Higashimoto
- Laboratory of Plant Pathology and Biotechnology, Kochi University, Nankoku, Kochi 783-8502, Japan
| | - Kouhei Ohnishi
- Research Institute of Molecular Genetics, Kochi University, Nankoku, Kochi 783-8502, Japan
| | - Akinori Kiba
- Laboratory of Plant Pathology and Biotechnology, Kochi University, Nankoku, Kochi 783-8502, Japan
| | - Yasufumi Hikichi
- Laboratory of Plant Pathology and Biotechnology, Kochi University, Nankoku, Kochi 783-8502, Japan
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19
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Kiełbowicz-Matuk A, Banachowicz E, Turska-Tarska A, Rey P, Rorat T. Expression and characterization of a barley phosphatidylinositol transfer protein structurally homologous to the yeast Sec14p protein. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2016; 246:98-111. [PMID: 26993240 DOI: 10.1016/j.plantsci.2016.02.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 02/16/2016] [Accepted: 02/20/2016] [Indexed: 06/05/2023]
Abstract
Phosphatidylinositol transfer proteins (PITPs) include a large group of proteins implicated in the non-vesicular traffic of phosphatidylinositol (PI) between membranes. In yeast, the structure and function of the PITP Sec14-p protein have been well characterized. In contrast, the knowledge on plant PITP proteins is very scarce. In this work, we characterized a novel type of PITP protein in barley named HvSec14p and related to the yeast Sec14-p protein. Our data reveal that HvSec14p consists of only the Sec14p-domain structurally homologous to the yeast phosphoinositide binding domain. We show that HvSec14p expression is up-regulated at both transcript and protein levels at specific stages of development during seed formation and germination, and in leaves of a drought-tolerant barley genotype under osmotic constraints. Modeling analyses of the protein three-dimensional structure revealed its capacity to dock the phosphoinositides, PtdIns(3)P, PtdIns(4)P, PtdIns(5)P and PtdIns(3,5)P2. Consistently, the recombinant HvSec14p protein is able to bind in vitro most PIP types, the highest affinity being observed with PtdIns(3,5)P2. Based on the high gene expression at specific developmental stages and in drought-tolerant barley genotypes, we propose that HvSec14p plays essential roles in the biogenesis of membranes in expanding cells and in their preservation under osmotic stress conditions.
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Affiliation(s)
| | - Ewa Banachowicz
- Molecular Biophysics Department, Faculty of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland.
| | - Anna Turska-Tarska
- Institute of Plant Genetics, Polish Academy of Sciences, Strzeszyńska 34, 60-479 Poznań, Poland.
| | - Pascal Rey
- CEA, DSV, IBEB, Laboratoire d'Ecophysiologie Moléculaire des Plantes, Saint-Paul-lez-Durance, F-13108, France; CNRS, UMR 7265 Biologie Végétale & Microbiologie Environnementale, Saint-Paul-lez-Durance, F-13108, France; Aix-Marseille Université, Saint-Paul-lez-Durance, F-13108, France.
| | - Tadeusz Rorat
- Institute of Plant Genetics, Polish Academy of Sciences, Strzeszyńska 34, 60-479 Poznań, Poland.
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20
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Huang J, Ghosh R, Bankaitis VA. Sec14-like phosphatidylinositol transfer proteins and the biological landscape of phosphoinositide signaling in plants. Biochim Biophys Acta Mol Cell Biol Lipids 2016; 1861:1352-1364. [PMID: 27038688 DOI: 10.1016/j.bbalip.2016.03.027] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 03/21/2016] [Accepted: 03/23/2016] [Indexed: 01/01/2023]
Abstract
Phosphoinositides and soluble inositol phosphates are essential components of a complex intracellular chemical code that regulates major aspects of lipid signaling in eukaryotes. These involvements span a broad array of biological outcomes and activities, and cells are faced with the problem of how to compartmentalize and organize these various signaling events into a coherent scheme. It is in the arena of how phosphoinositide signaling circuits are integrated and, and how phosphoinositide pools are functionally defined and channeled to privileged effectors, that phosphatidylinositol (PtdIns) transfer proteins (PITPs) are emerging as critical players. As plant systems offer some unique advantages and opportunities for study of these proteins, we discuss herein our perspectives regarding the progress made in plant systems regarding PITP function. We also suggest interesting prospects that plant systems hold for interrogating how PITPs work, particularly in multi-domain contexts, to diversify the biological outcomes for phosphoinositide signaling. This article is part of a Special Issue entitled: Plant Lipid Biology edited by Kent D. Chapman and Ivo Feussner.
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Affiliation(s)
- Jin Huang
- Department of Molecular & Cellular Medicine, Texas A&M Health Sciences Center, College Station, TX 77843-1114 USA.
| | - Ratna Ghosh
- Department of Molecular & Cellular Medicine, Texas A&M Health Sciences Center, College Station, TX 77843-1114 USA
| | - Vytas A Bankaitis
- Department of Molecular & Cellular Medicine, Texas A&M Health Sciences Center, College Station, TX 77843-1114 USA; Department of Biochemistry & Biophysics, Texas A&M University, College Station, TX 77843-1114 USA; Department of Chemistry, Texas A&M University, College Station, TX 77843-1114 USA.
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21
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Kiba A, Galis I, Hojo Y, Ohnishi K, Yoshioka H, Hikichi Y. SEC14 phospholipid transfer protein is involved in lipid signaling-mediated plant immune responses in Nicotiana benthamiana. PLoS One 2014; 9:e98150. [PMID: 24845602 PMCID: PMC4028302 DOI: 10.1371/journal.pone.0098150] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Accepted: 04/29/2014] [Indexed: 11/19/2022] Open
Abstract
We previously identified a gene related to the SEC14-gene phospholipid transfer protein superfamily that is induced in Nicotiana benthamiana (NbSEC14) in response to infection with Ralstonia solanacearum. We here report that NbSEC14 plays a role in plant immune responses via phospholipid-turnover. NbSEC14-silencing compromised expression of defense-related PR-4 and accumulation of jasmonic acid (JA) and its derivative JA-Ile. Transient expression of NbSEC14 induced PR-4 gene expression. Activities of diacylglycerol kinase, phospholipase C and D, and the synthesis of diacylglycerol and phosphatidic acid elicited by avirulent R. solanacearum were reduced in NbSEC14-silenced plants. Accumulation of signaling lipids and activation of diacylglycerol kinase and phospholipases were enhanced by transient expression of NbSEC14. These results suggest that the NbSEC14 protein plays a role at the interface between lipid signaling-metabolism and plant innate immune responses.
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Affiliation(s)
- Akinori Kiba
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku, Kochi, Japan
| | - Ivan Galis
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Japan
| | - Yuko Hojo
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Japan
| | - Kouhei Ohnishi
- Research Institute of Molecular Genetics, Kochi University, Nankoku, Kochi, Japan
| | - Hirofumi Yoshioka
- Laboratory of Defense in Plant-Pathogen Interactions, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa-ku, Nagoya, Japan
| | - Yasufumi Hikichi
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku, Kochi, Japan
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Wang X, Yin J, Shi L, Zhang G, Song B. Design, synthesis, and antibacterial activity of novel Schiff base derivatives of quinazolin-4(3H)-one. Eur J Med Chem 2014; 77:65-74. [PMID: 24607590 DOI: 10.1016/j.ejmech.2014.02.053] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Novel imine derivatives of quinazolin-4(3H)-one were designed and synthesized by using aminoethyl moieties to increase the amine bridge of quinazolin-4(3H)-one amine and then introducing various aromatic aldehydes. The target compounds were characterized by proton nuclear magnetic resonance spectroscopy ((1)H NMR), carbon nuclear magnetic resonance spectroscopy ((13)C NMR), mass spectrometry (MS), infrared spectroscopy (IR), elemental analysis, and X-ray diffraction crystallography. Bioassay results indicated that some of the compounds showed good to excellent antibacterial activities against tobacco bacterial wilt and tomato bacterial wilt. The 50% effective concentrations (EC50) of the compounds against tobacco and tomato bacterial wilts ranged from 63.73 μg/mL to 201.52 μg/mL and 38.64 μg/mL to 81.39 μg/mL, respectively, which are lower than that the positive control thiodiazole copper (216.70 and 99.80 μg/mL). These results indicated that novel Schiff base derivatives containing the 4(3H)-quinazolinone moiety can effectively control tobacco and tomato bacterial wilts.
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Affiliation(s)
- Xiang Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research, and Development Center for Fine Chemicals, Guizhou University, Guiyang 550025, People's Republic of China; College of Chemistry and Materials Engineering, Kaili University, Kaili 556011, People's Republic of China
| | - Juan Yin
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research, and Development Center for Fine Chemicals, Guizhou University, Guiyang 550025, People's Republic of China
| | - Li Shi
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research, and Development Center for Fine Chemicals, Guizhou University, Guiyang 550025, People's Republic of China
| | - Guoping Zhang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research, and Development Center for Fine Chemicals, Guizhou University, Guiyang 550025, People's Republic of China
| | - Baoan Song
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Research, and Development Center for Fine Chemicals, Guizhou University, Guiyang 550025, People's Republic of China.
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23
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Nakano M, Nishihara M, Yoshioka H, Takahashi H, Sawasaki T, Ohnishi K, Hikichi Y, Kiba A. Suppression of DS1 phosphatidic acid phosphatase confirms resistance to Ralstonia solanacearum in Nicotiana benthamiana. PLoS One 2013; 8:e75124. [PMID: 24073238 PMCID: PMC3779229 DOI: 10.1371/journal.pone.0075124] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Accepted: 08/10/2013] [Indexed: 12/21/2022] Open
Abstract
Nicotianabenthamiana is susceptible to Ralstonia solanacearum. To analyze molecular mechanisms for disease susceptibility, we screened a gene-silenced plant showing resistance to R. solanacearum, designated as DS1 (Disease suppression 1). The deduced amino acid sequence of DS1 cDNA encoded a phosphatidic acid phosphatase (PAP) 2. DS1 expression was induced by infection with a virulent strain of R. solanacearum in an hrp-gene-dependent manner. DS1 rescued growth defects of the temperature-sensitive ∆lpp1∆dpp1∆pah1 mutant yeast. Recombinant DS1 protein showed Mg(2+)-independent PAP activity. DS1 plants showed reduced PAP activity and increased phosphatidic acid (PA) content. After inoculation with R. solanacearum, DS1 plants showed accelerated cell death, over-accumulation of reactive oxygen species (ROS), and hyper-induction of PR-4 expression. In contrast, DS1-overexpressing tobacco plants showed reduced PA content, greater susceptibility to R. solanacearum, and reduced ROS production and PR-4 expression. The DS1 phenotype was partially compromised in the plants in which both DS1 and NbCoi1 or DS1 and NbrbohB were silenced. These results show that DS1 PAP may affect plant immune responses related to ROS and JA cascades via regulation of PA levels. Suppression of DS1 function or DS1 expression could rapidly activate plant defenses to achieve effective resistance against Ralstonia solanacearum.
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Affiliation(s)
- Masahito Nakano
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku, Kochi, Japan
| | | | - Hirofumi Yoshioka
- Laboratory of Defense in Plant-Pathogen Interactions, Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa-ku, Nagoya, Japan
| | - Hirotaka Takahashi
- Division of Proteomedical Sciences, Cell-Free Science and Technology Research Center, Ehime University, Matsuyama, Japan
| | - Tatsuya Sawasaki
- Division of Proteomedical Sciences, Cell-Free Science and Technology Research Center, Ehime University, Matsuyama, Japan
| | - Kouhei Ohnishi
- Research Institute of Molecular Genetics, Kochi University, Nankoku, Kochi, Japan
| | - Yasufumi Hikichi
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku, Kochi, Japan
| | - Akinori Kiba
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku, Kochi, Japan
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Gupta M, Yoshioka H, Ohnishi K, Mizumoto H, Hikichi Y, Kiba A. A translationally controlled tumor protein negatively regulates the hypersensitive response in Nicotiana benthamiana. PLANT & CELL PHYSIOLOGY 2013; 54:1403-14. [PMID: 23788648 DOI: 10.1093/pcp/pct090] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
We have been isolating and characterizing Ralstonia solanacearum-responsive genes (RsRGs) in Nicotiana plants. In this study we focused on RsRG308, which we renamed NbTCTP (N. benthamiana translationally controlled tumor protein) because it encodes a polypeptide showing similarity to translationally controlled tumor proteins. Induction of the hypersensitive response (HR) was accelerated in NbTCTP-silenced N. benthamiana plants challenged with R. solanacearum 8107 (Rs8107). The Rs8107 population decreased significantly, whereas hin1 gene expression was enhanced in the silenced plant. Accelerated induction of HR was observed in NbTCTP-silenced plants inoculated with Pseudomonas cichorii and P. syringae pv. syringae. Silencing of NbTCTP also accelerated the induction of HR cell death by Agrobacterium-mediated transient expression of HR inducers, such as AvrA, BAX, INF1 and NbMEK2(DD). NbTCTP silencing enhanced NbrbohB- and NbMEK2-mediated reactive oxygen species production, leading to HR. Transient expression of both the full-length sequence and the Bcl-xL domain of NbTCTP decreased HR cell death induced by Agrobacterium-mediated transient expression of HR inducers. NbTCTP-silenced plants also showed slightly dwarf phenotypes. Therefore, NbTCTP might have a role in cell death regulation during HR to fine-tune programmed cell death-associated plant defense responses.
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Affiliation(s)
- Meenu Gupta
- Laboratory of Plant Pathology and Biotechnology, Faculty of Agriculture, Kochi University, Nankoku, Kochi 783-8502, Japan
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