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Liu Q, Wang T, Ke M, Qian C, Li J, Huang X, Gao Z, Chen X, Tu T. UV-B Radiation Disrupts Membrane Lipid Organization and Suppresses Protein Mobility of GmNARK in Arabidopsis. PLANTS (BASEL, SWITZERLAND) 2024; 13:1536. [PMID: 38891343 PMCID: PMC11174901 DOI: 10.3390/plants13111536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/23/2024] [Accepted: 05/30/2024] [Indexed: 06/21/2024]
Abstract
While it is well known that plants interpret UV-B as an environmental cue and a potential stressor influencing their growth and development, the specific effects of UV-B-induced oxidative stress on the dynamics of membrane lipids and proteins remain underexplored. Here, we demonstrate that UV-B exposure notably increases the formation of ordered lipid domains on the plasma membrane (PM) and significantly alters the behavior of the Glycine max nodule autoregulation receptor kinase (GmNARK) protein in Arabidopsis leaves. The GmNARK protein was located on the PM and accumulated as small particles in the cytoplasm. We found that UV-B irradiation interrupted the lateral diffusion of GmNARK proteins on the PM. Furthermore, UV-B light decreases the efficiency of surface molecule internalization by clathrin-mediated endocytosis (CME). In brief, UV-B irradiation increased the proportion of the ordered lipid phase and disrupted clathrin-dependent endocytosis; thus, the endocytic trafficking and lateral mobility of GmNARK protein on the plasma membrane are crucial for nodule formation tuning. Our results revealed a novel role of low-intensity UV-B stress in altering the organization of the plasma membrane and the dynamics of membrane-associated proteins.
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Affiliation(s)
- Qiulin Liu
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (Q.L.); (T.W.); (M.K.); (Z.G.)
- Horticultural Plant Biology and Metabolomics Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Tianyu Wang
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (Q.L.); (T.W.); (M.K.); (Z.G.)
- Horticultural Plant Biology and Metabolomics Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Meiyu Ke
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (Q.L.); (T.W.); (M.K.); (Z.G.)
- Horticultural Plant Biology and Metabolomics Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Chongzhen Qian
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China; (C.Q.); (X.H.)
| | - Jiejie Li
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Science, Beijing Normal University, Beijing 100875, China;
| | - Xi Huang
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen 361102, China; (C.Q.); (X.H.)
| | - Zhen Gao
- Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (Q.L.); (T.W.); (M.K.); (Z.G.)
- Horticultural Plant Biology and Metabolomics Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xu Chen
- Horticultural Plant Biology and Metabolomics Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Tianli Tu
- Horticultural Plant Biology and Metabolomics Center, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
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Sun N, Zhou J, Liu Y, Li D, Xu X, Zhu Z, Xu X, Zhan R, Zhang H, Wang L. Genome-wide characterization of Remorin gene family and their responsive expression to abiotic stresses and plant hormone in Brassica napus. PLANT CELL REPORTS 2024; 43:155. [PMID: 38814469 DOI: 10.1007/s00299-024-03240-9] [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: 03/11/2024] [Accepted: 05/22/2024] [Indexed: 05/31/2024]
Abstract
KEY MESSAGE Remorin proteins could be positively related to salt and osmotic stress resistance in rapeseed. Remorins (REMs) play a crucial role in adaptations to adverse environments. However, their roles in abiotic stress and phytohormone responses in oil crops are still largely unknown. In this study, we identified 47 BnaREM genes in the B.napus genome. Phylogenetic relationship and synteny analysis revealed that they were categorized into 5 distinct groups and have gone through 55 segmental duplication events under purifying selection. Gene structure and conserved domains analysis demonstrated that they were highly conserved and all BnaREMs contained a conserved Remorin_C domain, with a variable N-terminal region. Promoter sequence analysis showed that BnaREM gene promoters contained various hormones and stress-related cis-acting elements. Transcriptome data from BrassicaEDB database exhibited that all BnaREMs were ubiquitously expressed in buds, stamens, inflorescences, young leaves, mature leaves, roots, stems, seeds, silique pericarps, embryos and seed coats. The qRT-PCR analysis indicated that most of them were responsive to ABA, salt and osmotic treatments. Further mutant complementary experiments revealed that the expression of BnaREM1.3-4C-1 in the Arabidopsis rem1.3 mutant restored the retarded growth phenotype and the ability to resistance to salt and osmotic stresses. Our findings provide fundamental information on the structure and evolutionary relationship of the BnaREM family genes in rapeseed, and reveal the potential function of BnaREM1.3-4C-1 in stress and hormone response.
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Affiliation(s)
- Nan Sun
- The Engineering Research Institute of Agriculture and Forestry, Ludong University, 186 Hongqizhong Road, Yantai, 264025, People's Republic of China
| | - Jiale Zhou
- The Engineering Research Institute of Agriculture and Forestry, Ludong University, 186 Hongqizhong Road, Yantai, 264025, People's Republic of China
- College of Agriculture, Ludong University, Yantai, 264025, People's Republic of China
| | - Yanfeng Liu
- The Engineering Research Institute of Agriculture and Forestry, Ludong University, 186 Hongqizhong Road, Yantai, 264025, People's Republic of China
| | - Dong Li
- The Engineering Research Institute of Agriculture and Forestry, Ludong University, 186 Hongqizhong Road, Yantai, 264025, People's Republic of China
| | - Xin Xu
- The Engineering Research Institute of Agriculture and Forestry, Ludong University, 186 Hongqizhong Road, Yantai, 264025, People's Republic of China
- College of Agriculture, Ludong University, Yantai, 264025, People's Republic of China
| | - Zihao Zhu
- The Engineering Research Institute of Agriculture and Forestry, Ludong University, 186 Hongqizhong Road, Yantai, 264025, People's Republic of China
- College of Agriculture, Ludong University, Yantai, 264025, People's Republic of China
| | - Xuesheng Xu
- Zhaoyuan Shenghui Agricultural Technology Development Co., Ltd, North of Beiyuanzhuang Village, Fushan County, Zhaoyuan, 265400, Shandong, People's Republic of China
| | - Renhui Zhan
- School of Pharmacy, Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, Shandong, People's Republic of China
| | - Hongxia Zhang
- The Engineering Research Institute of Agriculture and Forestry, Ludong University, 186 Hongqizhong Road, Yantai, 264025, People's Republic of China
| | - Limin Wang
- The Engineering Research Institute of Agriculture and Forestry, Ludong University, 186 Hongqizhong Road, Yantai, 264025, People's Republic of China.
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Ge P, Lu H, Wang W, Ma Y, Li Y, Zhou T, Wei T, Wu J, Cui F. Plasmodesmata-associated Flotillin positively regulates broad-spectrum virus cell-to-cell trafficking. PLANT BIOTECHNOLOGY JOURNAL 2024; 22:1387-1401. [PMID: 38130080 PMCID: PMC11022789 DOI: 10.1111/pbi.14274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 11/30/2023] [Accepted: 12/09/2023] [Indexed: 12/23/2023]
Abstract
Viral diseases seriously threaten rice production. Plasmodesmata (PD)-associated proteins are deemed to play a key role in viral infection in host plants. However, few PD-associated proteins have been discovered in rice to afford viral infection. Here, inspired by the infection mechanism in insect vectors, we identified a member of the Flotillin family taking part in the cell-to-cell transport of rice stripe virus (RSV) in rice. Flotillin1 interacted with RSV nucleocapsid protein (NP) and was localized on PD. In flotillin1 knockout mutant rice, which displayed normal growth, RSV intercellular movement was retarded, leading to significantly decreased disease incidence. The PD pore sizes of the mutant rice were smaller than those of the wild type due to more callose deposits, which was closely related to the upregulation of two callose synthase genes. RSV infection stimulated flotillin1 expression and enlarged the PD aperture via RSV NP. In addition, flotillin1 knockout decreased disease incidences of southern rice black-streaked dwarf virus (SRBSDV) and rice dwarf virus (RDV) in rice. Overall, our study reveals a new PD-associated protein facilitating virus cell-to-cell trafficking and presents the potential of flotillin1 as a target to produce broad-spectrum antiviral rice resources in the future.
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Affiliation(s)
- Panpan Ge
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of ZoologyChinese Academy of SciencesBeijingChina
- University of Chinese Academy of SciencesBeijingChina
| | - Hong Lu
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of ZoologyChinese Academy of SciencesBeijingChina
| | - Wei Wang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of ZoologyChinese Academy of SciencesBeijingChina
| | - Yonghuan Ma
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of ZoologyChinese Academy of SciencesBeijingChina
- University of Chinese Academy of SciencesBeijingChina
| | - Yi Li
- State Key Laboratory of Protein and Plant Gene Research, College of Life SciencesPeking UniversityBeijingChina
| | - Tong Zhou
- Key Laboratory of Food Quality and Safety, Institute of Plant ProtectionJiangsu Academy of Agricultural SciencesNanjingChina
| | - Taiyun Wei
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Vector‐borne Virus Research Center, Institute of Plant VirologyFujian Agriculture and Forestry UniversityFuzhouChina
| | - Jianguo Wu
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Vector‐borne Virus Research Center, Institute of Plant VirologyFujian Agriculture and Forestry UniversityFuzhouChina
| | - Feng Cui
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of ZoologyChinese Academy of SciencesBeijingChina
- University of Chinese Academy of SciencesBeijingChina
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Yang Z, Cheng G, Yu Q, Jiao W, Zeng K, Luo T, Zhang H, Shang H, Huang G, Wang F, Guo Y, Xu J. Identification and characterization of the Remorin gene family in Saccharum and the involvement of ScREM1.5e-1/-2 in SCMV infection on sugarcane. FRONTIERS IN PLANT SCIENCE 2024; 15:1365995. [PMID: 38463560 PMCID: PMC10920289 DOI: 10.3389/fpls.2024.1365995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 02/08/2024] [Indexed: 03/12/2024]
Abstract
Introduction Remorins (REMs) are plant-specific membrane-associated proteins that play important roles in plant-pathogen interactions and environmental adaptations. Group I REMs are extensively involved in virus infection. However, little is known about the REM gene family in sugarcane (Saccharum spp. hyrid), the most important sugar and energy crop around world. Methods Comparative genomics were employed to analyze the REM gene family in Saccharum spontaneum. Transcriptomics or RT-qPCR were used to analyze their expression files in different development stages or tissues under different treatments. Yeast two hybrid, bimolecular fluorescence complementation and co-immunoprecipitation assays were applied to investigate the protein interaction. Results In this study, 65 REMs were identified from Saccharum spontaneum genome and classified into six groups based on phylogenetic tree analysis. These REMs contain multiple cis-elements associated with growth, development, hormone and stress response. Expression profiling revealed that among different SsREMs with variable expression levels in different developmental stages or different tissues. A pair of alleles, ScREM1.5e-1/-2, were isolated from the sugarcane cultivar ROC22. ScREM1.5e-1/-2 were highly expressed in leaves, with the former expressed at significantly higher levels than the latter. Their expression was induced by treatment with H2O2, ABA, ethylene, brassinosteroid, SA or MeJA, and varied upon Sugarcane mosaic virus (SCMV) infection. ScREM1.5e-1 was localized to the plasma membrane (PM), while ScREM1.5e-2 was localized to the cytoplasm or nucleus. ScREM1.5e-1/-2 can self-interact and interact with each other, and interact with VPgs from SCMV, Sorghum mosaic virus, or Sugarcane streak mosaic virus. The interactions with VPgs relocated ScREM1.5e-1 from the PM to the cytoplasm. Discussion These results reveal the origin, distribution and evolution of the REM gene family in sugarcane and may shed light on engineering sugarcane resistance against sugarcane mosaic pathogens.
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Affiliation(s)
- Zongtao Yang
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, National Engineering Research Center for Sugarcane, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Guangyuan Cheng
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, National Engineering Research Center for Sugarcane, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Quanxin Yu
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, National Engineering Research Center for Sugarcane, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Wendi Jiao
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, National Engineering Research Center for Sugarcane, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Kang Zeng
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, National Engineering Research Center for Sugarcane, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Tingxu Luo
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, National Engineering Research Center for Sugarcane, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Hai Zhang
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, National Engineering Research Center for Sugarcane, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Heyang Shang
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, National Engineering Research Center for Sugarcane, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Guoqiang Huang
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, National Engineering Research Center for Sugarcane, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Fengji Wang
- Key Laboratory of Ministry of Education for Genetics, Breeding and Multiple Utilization of Crops, College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Ying Guo
- Fujian Key Laboratory of Subtropical Plant Physiology and Biochemistry, Fujian Institute of Subtropical Botany, Xiamen, Fujian, China
| | - Jingsheng Xu
- Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, National Engineering Research Center for Sugarcane, College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
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Hsiao AS. Protein Disorder in Plant Stress Adaptation: From Late Embryogenesis Abundant to Other Intrinsically Disordered Proteins. Int J Mol Sci 2024; 25:1178. [PMID: 38256256 PMCID: PMC10816898 DOI: 10.3390/ijms25021178] [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: 10/29/2023] [Revised: 01/15/2024] [Accepted: 01/16/2024] [Indexed: 01/24/2024] Open
Abstract
Global climate change has caused severe abiotic and biotic stresses, affecting plant growth and food security. The mechanical understanding of plant stress responses is critical for achieving sustainable agriculture. Intrinsically disordered proteins (IDPs) are a group of proteins without unique three-dimensional structures. The environmental sensitivity and structural flexibility of IDPs contribute to the growth and developmental plasticity for sessile plants to deal with environmental challenges. This article discusses the roles of various disordered proteins in plant stress tolerance and resistance, describes the current mechanistic insights into unstructured proteins such as the disorder-to-order transition for adopting secondary structures to interact with specific partners (i.e., cellular membranes, membrane proteins, metal ions, and DNA), and elucidates the roles of liquid-liquid phase separation driven by protein disorder in stress responses. By comparing IDP studies in animal systems, this article provides conceptual principles of plant protein disorder in stress adaptation, reveals the current research gaps, and advises on the future research direction. The highlighting of relevant unanswered questions in plant protein disorder research aims to encourage more studies on these emerging topics to understand the mechanisms of action behind their stress resistance phenotypes.
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Affiliation(s)
- An-Shan Hsiao
- Department of Biochemistry and Metabolism, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
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Sood S, Bhardwaj V, Bairwa A, Dalamu, Sharma S, Sharma AK, Kumar A, Lal M, Kumar V. Genome-wide association mapping and genomic prediction for late blight and potato cyst nematode resistance in potato ( Solanum tuberosum L.). FRONTIERS IN PLANT SCIENCE 2023; 14:1211472. [PMID: 37860256 PMCID: PMC10582711 DOI: 10.3389/fpls.2023.1211472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 09/12/2023] [Indexed: 10/21/2023]
Abstract
Potatoes are an important source of food for millions of people worldwide. Biotic stresses, notably late blight and potato cyst nematodes (PCN) pose a major threat to potato production worldwide, and knowledge of genes controlling these traits is limited. A genome-wide association mapping study was conducted to identify the genomic regulators controlling these biotic stresses, and the genomic prediction accuracy was worked out using the GBLUP model of genomic selection (GS) in a panel of 222 diverse potato accessions. The phenotype data on resistance to late blight and two PCN species (Globodera pallida and G. rostochiensis) were recorded for three and two consecutive years, respectively. The potato panel was genotyped using genotyping by sequencing (GBS), and 1,20,622 SNP markers were identified. A total of 7 SNP associations for late blight resistance, 9 and 11 for G. pallida and G. rostochiensis, respectively, were detected by additive and simplex dominance models of GWAS. The associated SNPs were distributed across the chromosomes, but most of the associations were found on chromosomes 5, 10 and 11, which have been earlier reported as the hotspots of disease-resistance genes. The GS prediction accuracy estimates were low to moderate for resistance to G. pallida (0.04-0.14) and G. rostochiensis (0.14-0.21), while late blight resistance showed a high prediction accuracy of 0.42-0.51. This study provides information on the complex genetic nature of these biotic stress traits in potatoes and putative SNP markers for resistance breeding.
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Affiliation(s)
- Salej Sood
- Indian Council of Agricultural Research (ICAR)-Central Potato Research Institute, Shimla, HP, India
| | - Vinay Bhardwaj
- Indian Council of Agricultural Research (ICAR)-Central Potato Research Institute, Shimla, HP, India
| | - Aarti Bairwa
- Indian Council of Agricultural Research (ICAR)-Central Potato Research Institute, Shimla, HP, India
| | - Dalamu
- Indian Council of Agricultural Research (ICAR)-Central Potato Research Institute, Shimla, HP, India
| | - Sanjeev Sharma
- Indian Council of Agricultural Research (ICAR)-Central Potato Research Institute, Shimla, HP, India
| | - Ashwani K. Sharma
- Indian Council of Agricultural Research (ICAR)-Central Potato Research Institute, Shimla, HP, India
| | - Ashwani Kumar
- Indian Council of Agricultural Research (ICAR)-Central Potato Research Institute, Shimla, HP, India
| | - Mehi Lal
- ICAR-Central Potato Research Institute, Regional Station, Modipuram, UP, India
| | - Vinod Kumar
- Indian Council of Agricultural Research (ICAR)-Central Potato Research Institute, Shimla, HP, India
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7
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Li H, Wang X, Zhuo Y, Chen S, Lin J, Ma H, Zhong M. Molecular characterization and expression analysis of the remorin genes in tomato ( Solanum lycopersicum L.). FRONTIERS IN PLANT SCIENCE 2023; 14:1175153. [PMID: 37229123 PMCID: PMC10203495 DOI: 10.3389/fpls.2023.1175153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 04/17/2023] [Indexed: 05/27/2023]
Abstract
Remorin (REMs) are plant-specific and plasma membrane-associated proteins that play an essential role in the growth and development of plants and adaptations to adverse environments. To our knowledge, a genome-scale investigation of the REM genes in tomato has never been systematically studied. In this study, a total of 17 SlREM genes were identified in the tomato genome using bioinformatics methods. Our results demonstrated that the 17 members of SlREM were classified into 6 groups based on phylogenetic analysis and unevenly distributed on the eight chromosomes of tomato. There were 15 REM homologous gene pairs between tomato and Arabidopsis. The SlREM gene structures and motif compositions were similar. Promoter sequence analysis showed that the SlREM gene promoters contained some tissue-specific, hormones and stress-related cis-regulatory elements. Expression analysis based on qRT-PCR (Real-time quantitative PCR) analysis showed that SlREM family genes were were differentially expressed in different tissues, and they responded to ABA, MeJA, SA, low-temperature, drought and NaCl treatments. These results potentially provide relevant information for further research on the biological functions of SlREM family genes.
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Affiliation(s)
| | | | | | | | | | - Hui Ma
- *Correspondence: Hui Ma, ; Ming Zhong,
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Zhang Y, Guo S, Zhang F, Gan P, Li M, Wang C, Li H, Gao G, Wang X, Kang Z, Zhang X. CaREM1.4 interacts with CaRIN4 to regulate Ralstonia solanacearum tolerance by triggering cell death in pepper. HORTICULTURE RESEARCH 2023; 10:uhad053. [PMID: 37213684 PMCID: PMC10199716 DOI: 10.1093/hr/uhad053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 03/17/2023] [Indexed: 05/23/2023]
Abstract
Remorins, plant-specific proteins, have a significant role in conferring on plants the ability to adapt to adverse environments. However, the precise function of remorins in resistance to biological stress remains largely unknown. Eighteen CaREM genes were identified in pepper genome sequences based on the C-terminal conserved domain that is specific to remorin proteins in this research. Phylogenetic relations, chromosomal localization, motif, gene structures, and promoter regions of these remorins were analyzed and a remorin gene, CaREM1.4, was cloned for further study. The transcription of CaREM1.4 in pepper was induced by infection with Ralstonia solanacearum. Knocking down CaREM1.4 in pepper using virus-induced gene silencing (VIGS) technologies reduced the resistance of pepper plants to R. solanacearum and downregulated the expression of immunity-associated genes. Conversely, transient overexpression of CaREM1.4 in pepper and Nicotiana benthamiana plants triggered hypersensitive response-mediated cell death and upregulated expression of defense-related genes. In addition, CaRIN4-12, which interacted with CaREM1.4 at the plasma membrane and cell nucleus, was knocked down with VIGS, decreasing the susceptibility of Capsicum annuum to R. solanacearum. Furthermore, CaREM1.4 reduced ROS production by interacting with CaRIN4-12 upon co-injection in pepper. Taken together, our findings suggest that CaREM1.4 may function as a positive regulator of the hypersensitive response, and it interacts with CaRIN4-12, which negatively regulates plant immune responses of pepper to R. solanacearum. Our study provides new evidence for comprehending the molecular regulatory network of plant cell death.
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Affiliation(s)
- Yanqin Zhang
- College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Shuangyuan Guo
- College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Feng Zhang
- College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Pengfei Gan
- College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Min Li
- College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Cong Wang
- College of Life Sciences, Shanxi Normal University, Taiyuan 030000, Shanxi, China
| | - Huankun Li
- College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, 712100 Shaanxi, China
| | - Gang Gao
- College of Life Sciences, Shanxi Normal University, Taiyuan 030000, Shanxi, China
| | - Xiaojie Wang
- College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, 712100 Shaanxi, China
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Zarreen F, Kumar K, Chakraborty S. Phosphoinositides in plant-pathogen interaction: trends and perspectives. STRESS BIOLOGY 2023; 3:4. [PMID: 37676371 PMCID: PMC10442044 DOI: 10.1007/s44154-023-00082-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 02/15/2023] [Indexed: 09/08/2023]
Abstract
Phosphoinositides are important regulatory membrane lipids, with a role in plant development and cellular function. Emerging evidence indicates that phosphoinositides play crucial roles in plant defence and are also utilized by pathogens for infection. In this review, we highlight the role of phosphoinositides in plant-pathogen interaction and the implication of this remarkable convergence in the battle against plant diseases.
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Affiliation(s)
- Fauzia Zarreen
- Molecular Virology Laboratory, School of Life Science, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Kamal Kumar
- Molecular Virology Laboratory, School of Life Science, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Supriya Chakraborty
- Molecular Virology Laboratory, School of Life Science, Jawaharlal Nehru University, New Delhi, 110067, India.
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Su C, Rodriguez-Franco M, Lace B, Nebel N, Hernandez-Reyes C, Liang P, Schulze E, Mymrikov EV, Gross NM, Knerr J, Wang H, Siukstaite L, Keller J, Libourel C, Fischer AAM, Gabor KE, Mark E, Popp C, Hunte C, Weber W, Wendler P, Stanislas T, Delaux PM, Einsle O, Grosse R, Römer W, Ott T. Stabilization of membrane topologies by proteinaceous remorin scaffolds. Nat Commun 2023; 14:323. [PMID: 36658193 PMCID: PMC9852587 DOI: 10.1038/s41467-023-35976-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 01/10/2023] [Indexed: 01/20/2023] Open
Abstract
In plants, the topological organization of membranes has mainly been attributed to the cell wall and the cytoskeleton. Additionally, few proteins, such as plant-specific remorins have been shown to function as protein and lipid organizers. Root nodule symbiosis requires continuous membrane re-arrangements, with bacteria being finally released from infection threads into membrane-confined symbiosomes. We found that mutations in the symbiosis-specific SYMREM1 gene result in highly disorganized perimicrobial membranes. AlphaFold modelling and biochemical analyses reveal that SYMREM1 oligomerizes into antiparallel dimers and may form a higher-order membrane scaffolding structure. This was experimentally confirmed when expressing this and other remorins in wall-less protoplasts is sufficient where they significantly alter and stabilize de novo membrane topologies ranging from membrane blebs to long membrane tubes with a central actin filament. Reciprocally, mechanically induced membrane indentations were equally stabilized by SYMREM1. Taken together we describe a plant-specific mechanism that allows the stabilization of large-scale membrane conformations independent of the cell wall.
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Affiliation(s)
- Chao Su
- Faculty of Biology, University of Freiburg, 79104, Freiburg, Germany
| | | | - Beatrice Lace
- Faculty of Biology, University of Freiburg, 79104, Freiburg, Germany
| | - Nils Nebel
- Faculty of Biology, University of Freiburg, 79104, Freiburg, Germany
| | - Casandra Hernandez-Reyes
- Faculty of Biology, University of Freiburg, 79104, Freiburg, Germany.,CIBSS - Centre of Integrative Biological Signalling Studies, University of Freiburg, 79104, Freiburg, Germany
| | - Pengbo Liang
- Faculty of Biology, University of Freiburg, 79104, Freiburg, Germany
| | - Eija Schulze
- Faculty of Biology, University of Freiburg, 79104, Freiburg, Germany
| | - Evgeny V Mymrikov
- CIBSS - Centre of Integrative Biological Signalling Studies, University of Freiburg, 79104, Freiburg, Germany.,Institute for Biochemistry and Molecular Biology, ZBMZ, Faculty of Medicine, University of Freiburg, 79104, Freiburg, Germany
| | - Nikolas M Gross
- CIBSS - Centre of Integrative Biological Signalling Studies, University of Freiburg, 79104, Freiburg, Germany.,Institute for Biochemistry and Molecular Biology, ZBMZ, Faculty of Medicine, University of Freiburg, 79104, Freiburg, Germany.,Spemann Graduate School of Biology and Medicine (SGBM), University of Freiburg, 79104, Freiburg, Germany
| | - Julian Knerr
- Institute of Pharmacology, Medical Faculty, University of Freiburg, 79104, Freiburg, Germany
| | - Hong Wang
- CIBSS - Centre of Integrative Biological Signalling Studies, University of Freiburg, 79104, Freiburg, Germany.,Institute of Pharmacology, Medical Faculty, University of Freiburg, 79104, Freiburg, Germany
| | - Lina Siukstaite
- Faculty of Biology, University of Freiburg, 79104, Freiburg, Germany.,BIOSS - Centre for Biological Signalling Studies, University of Freiburg, 79104, Freiburg, Germany
| | - Jean Keller
- Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, INP Toulouse, Castanet Tolosan, France
| | - Cyril Libourel
- Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, INP Toulouse, Castanet Tolosan, France
| | - Alexandra A M Fischer
- CIBSS - Centre of Integrative Biological Signalling Studies, University of Freiburg, 79104, Freiburg, Germany.,Spemann Graduate School of Biology and Medicine (SGBM), University of Freiburg, 79104, Freiburg, Germany.,BIOSS - Centre for Biological Signalling Studies, University of Freiburg, 79104, Freiburg, Germany.,Division of Synthetic Biology, Faculty of Biology, University of Freiburg, 79104, Freiburg, Germany
| | - Katharina E Gabor
- Center for Plant Molecular Biology (ZMBP), University of Tübingen, 72076, Tübingen, Germany
| | - Eric Mark
- Institute of Biochemistry and Biology, Department of Biochemistry, University of Potsdam, 14476, Potsdam-Golm, Germany
| | - Claudia Popp
- Ludwig-Maximilians-University (LMU) Munich, Institute of Genetics, 82152, Martinsried, Germany
| | - Carola Hunte
- CIBSS - Centre of Integrative Biological Signalling Studies, University of Freiburg, 79104, Freiburg, Germany.,Institute for Biochemistry and Molecular Biology, ZBMZ, Faculty of Medicine, University of Freiburg, 79104, Freiburg, Germany.,BIOSS - Centre for Biological Signalling Studies, University of Freiburg, 79104, Freiburg, Germany
| | - Wilfried Weber
- CIBSS - Centre of Integrative Biological Signalling Studies, University of Freiburg, 79104, Freiburg, Germany.,BIOSS - Centre for Biological Signalling Studies, University of Freiburg, 79104, Freiburg, Germany.,Division of Synthetic Biology, Faculty of Biology, University of Freiburg, 79104, Freiburg, Germany
| | - Petra Wendler
- Institute of Biochemistry and Biology, Department of Biochemistry, University of Potsdam, 14476, Potsdam-Golm, Germany
| | - Thomas Stanislas
- Center for Plant Molecular Biology (ZMBP), University of Tübingen, 72076, Tübingen, Germany
| | - Pierre-Marc Delaux
- Laboratoire de Recherche en Sciences Végétales (LRSV), Université de Toulouse, CNRS, UPS, INP Toulouse, Castanet Tolosan, France
| | - Oliver Einsle
- Institute of Biochemistry, Faculty of Chemistry, University of Freiburg, 79104, Freiburg, Germany
| | - Robert Grosse
- CIBSS - Centre of Integrative Biological Signalling Studies, University of Freiburg, 79104, Freiburg, Germany.,Institute of Pharmacology, Medical Faculty, University of Freiburg, 79104, Freiburg, Germany
| | - Winfried Römer
- Faculty of Biology, University of Freiburg, 79104, Freiburg, Germany.,CIBSS - Centre of Integrative Biological Signalling Studies, University of Freiburg, 79104, Freiburg, Germany.,BIOSS - Centre for Biological Signalling Studies, University of Freiburg, 79104, Freiburg, Germany
| | - Thomas Ott
- Faculty of Biology, University of Freiburg, 79104, Freiburg, Germany. .,CIBSS - Centre of Integrative Biological Signalling Studies, University of Freiburg, 79104, Freiburg, Germany.
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11
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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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12
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Ahmad M. Genomics and transcriptomics to protect rice ( Oryza sativa. L.) from abiotic stressors: -pathways to achieving zero hunger. FRONTIERS IN PLANT SCIENCE 2022; 13:1002596. [PMID: 36340401 PMCID: PMC9630331 DOI: 10.3389/fpls.2022.1002596] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
More over half of the world's population depends on rice as a major food crop. Rice (Oryza sativa L.) is vulnerable to abiotic challenges including drought, cold, and salinity since it grown in semi-aquatic, tropical, or subtropical settings. Abiotic stress resistance has bred into rice plants since the earliest rice cultivation techniques. Prior to the discovery of the genome, abiotic stress-related genes were identified using forward genetic methods, and abiotic stress-tolerant lines have developed using traditional breeding methods. Dynamic transcriptome expression represents the degree of gene expression in a specific cell, tissue, or organ of an individual organism at a specific point in its growth and development. Transcriptomics can reveal the expression at the entire genome level during stressful conditions from the entire transcriptional level, which can be helpful in understanding the intricate regulatory network relating to the stress tolerance and adaptability of plants. Rice (Oryza sativa L.) gene families found comparatively using the reference genome sequences of other plant species, allowing for genome-wide identification. Transcriptomics via gene expression profiling which have recently dominated by RNA-seq complements genomic techniques. The identification of numerous important qtl,s genes, promoter elements, transcription factors and miRNAs involved in rice response to abiotic stress was made possible by all of these genomic and transcriptomic techniques. The use of several genomes and transcriptome methodologies to comprehend rice (Oryza sativa, L.) ability to withstand abiotic stress have been discussed in this review.
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Affiliation(s)
- Mushtaq Ahmad
- Visiting Scientist Plant Sciences, University of Nebraska, Lincoln, NE, United States
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13
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Fan W, Xia C, Wang S, Liu J, Deng L, Sun S, Wang X. Rhizobial infection of 4C cells triggers their endoreduplication during symbiotic nodule development in soybean. THE NEW PHYTOLOGIST 2022; 234:1018-1030. [PMID: 35175637 DOI: 10.1111/nph.18036] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 01/25/2022] [Indexed: 06/14/2023]
Abstract
Symbiosis between legumes and rhizobia results in the formation of nitrogen-fixing root nodules. Endoreduplication is essential for nodule development and efficient nitrogen fixation; however, the cellular mechanism by which rhizobial infection causes endoreduplication in symbiotic nodules and the roles of the resulting polyploid cells in nitrogen fixation remain largely unknown. Here, we developed a series of different approaches to separate infected cells (ICs) and uninfected cells (UCs) and determined their ploidy levels in soybean (Glycine max) developing nodules. We demonstrated that 4C nuclei exist in both UCs and ICs of developing nodules and that these 4C cells are primarily invaded by rhizobia and subsequently undergo endoreduplication. Furthermore, RNA-sequencing analysis of nuclei with different ploidy levels from soybean nodules at 12 d post-infection (dpi) and 20 dpi showed that 4C cells are predominantly ICs in 12-dpi nodules but UCs in 20-dpi nodules. We conclude that the infection of 4C cells by rhizobia is critical for initiating endoreduplication. These findings provide significant insight into rhizobial infection, nodule endoreduplication and nitrogen fixation in symbiotic nodules.
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Affiliation(s)
- Wei Fan
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan University, Kaifeng, 475004, China
| | - Chunjiao Xia
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Shixiang Wang
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
| | - Jing Liu
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan University, Kaifeng, 475004, China
| | - Lijun Deng
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan University, Kaifeng, 475004, China
| | - Shiyong Sun
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan University, Kaifeng, 475004, China
| | - Xuelu Wang
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan University, Kaifeng, 475004, China
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14
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Rocher M, Simon V, Jolivet MD, Sofer L, Deroubaix AF, Germain V, Mongrand S, German-Retana S. StREM1.3 REMORIN Protein Plays an Agonistic Role in Potyvirus Cell-to-Cell Movement in N. benthamiana. Viruses 2022; 14:574. [PMID: 35336981 PMCID: PMC8951588 DOI: 10.3390/v14030574] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/10/2022] [Accepted: 03/10/2022] [Indexed: 02/04/2023] Open
Abstract
REMORIN proteins belong to a plant-specific multigene family that localise in plasma membrane nanodomains and in plasmodesmata. We previously showed that in Nicotiana benthamiana, group 1 StREM1.3 limits the cell-to-cell spread of a potexvirus without affecting viral replication. This prompted us to check whether an effect on viral propagation could apply to potyvirus species Turnip mosaic virus (TuMV) and Potato virus A (PVA). Our results show that StREM1.3 transient or stable overexpression in transgenic lines increases potyvirus propagation, while it is slowed down in transgenic lines underexpressing endogenous NbREMs, without affecting viral replication. TuMV and PVA infection do not alter the membranous localisation of StREM1.3. Furthermore, StREM1.3-membrane anchoring is necessary for its agonist effect on potyvirus propagation. StREM1.3 phosphocode seems to lead to distinct plant responses against potexvirus and potyvirus. We also showed that StREM1.3 interacts in yeast and in planta with the key potyviral movement protein CI (cylindrical inclusion) at the level of the plasma membrane but only partially at plasmodesmata pit fields. TuMV infection also counteracts StREM1.3-induced plasmodesmata callose accumulation at plasmodesmata. Altogether, these results showed that StREM1.3 plays an agonistic role in potyvirus cell-to-cell movement in N. benthamiana.
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Affiliation(s)
- Marion Rocher
- Laboratoire de Biogenèse Membranaire, UMR 5200, CNRS Université Bordeaux, 71 Av. E. Bourlaux, 33140 Villenave d’Ornon, France; (M.R.); (M.-D.J.); (A.-F.D.); (V.G.); (S.M.)
| | - Vincent Simon
- UMR 1332 Biologie du Fruit et Pathologie, INRAE Université Bordeaux, 71 Av. E. Bourlaux, CS20032, CEDEX, 33882 Villenave d’Ornon, France; (V.S.); (L.S.)
| | - Marie-Dominique Jolivet
- Laboratoire de Biogenèse Membranaire, UMR 5200, CNRS Université Bordeaux, 71 Av. E. Bourlaux, 33140 Villenave d’Ornon, France; (M.R.); (M.-D.J.); (A.-F.D.); (V.G.); (S.M.)
| | - Luc Sofer
- UMR 1332 Biologie du Fruit et Pathologie, INRAE Université Bordeaux, 71 Av. E. Bourlaux, CS20032, CEDEX, 33882 Villenave d’Ornon, France; (V.S.); (L.S.)
| | - Anne-Flore Deroubaix
- Laboratoire de Biogenèse Membranaire, UMR 5200, CNRS Université Bordeaux, 71 Av. E. Bourlaux, 33140 Villenave d’Ornon, France; (M.R.); (M.-D.J.); (A.-F.D.); (V.G.); (S.M.)
| | - Véronique Germain
- Laboratoire de Biogenèse Membranaire, UMR 5200, CNRS Université Bordeaux, 71 Av. E. Bourlaux, 33140 Villenave d’Ornon, France; (M.R.); (M.-D.J.); (A.-F.D.); (V.G.); (S.M.)
| | - Sébastien Mongrand
- Laboratoire de Biogenèse Membranaire, UMR 5200, CNRS Université Bordeaux, 71 Av. E. Bourlaux, 33140 Villenave d’Ornon, France; (M.R.); (M.-D.J.); (A.-F.D.); (V.G.); (S.M.)
| | - Sylvie German-Retana
- UMR 1332 Biologie du Fruit et Pathologie, INRAE Université Bordeaux, 71 Av. E. Bourlaux, CS20032, CEDEX, 33882 Villenave d’Ornon, France; (V.S.); (L.S.)
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15
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Zhang Y, Wang Y, Zhou W, Zheng S, Ye R. Detection of candidate gene networks involved in resistance to Sclerotinia sclerotiorum in soybean. J Appl Genet 2022; 63:1-14. [PMID: 34510383 PMCID: PMC8755693 DOI: 10.1007/s13353-021-00654-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 06/30/2021] [Accepted: 07/17/2021] [Indexed: 11/25/2022]
Abstract
Quantitative trait locus (QTL) mapping often yields associations with dissimilar loci/genes as a consequence of diverse factors. One trait for which very limited agreement between mapping studies has been observed is resistance to white mold in soybean. To explore whether different approaches applied to a single data set could lead to more consistent results, haplotype-trait association and epistasis interaction effects were explored as a complement to a more conventional marker-trait analysis. At least 10 genomic regions were significantly associated with Sclerotinia sclerotiorum resistance in soybean, which have not been previously reported. At a significance level of α = 0.05, haplotype-trait association showed that the most prominent signal originated from a haplotype with 4-SNP (single nucleotide polymorphism) on chromosome 17, and single SNP-trait analysis located a nucleotide polymorphism at position rs34387780 on chromosome 3. All of the peak-SNPs (p-value < 0.05) of each chromosome also appeared in their respective haplotypes. Samples with extreme phenotypes were singled-out for association studies, 25-30% from each end of the phenotypic spectrum appeared in the present investigation to be the most appropriate sample size. Some key genes were identified by epistasis interaction analysis. By combining information on the nearest positional genes indicated that most loci have not been previously reported. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses suggest potential candidate genes underlying callose deposition in the cell wall and mitogen-activated protein kinase (MAPK) signaling pathway-plant, as well as plant-pathogen interaction pathway, were activated. Integration of multi-method genome-wide association study (GWAS) revealed novel genomic regions and promising candidate genes in novel regions, which include Glyma.01g048500, Glyma.03g129100, Glyma.17g072200, and the Dishevelled (Dvl) family of proteins on chromosomes 1, 3, 17, and 20, respectively.
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Affiliation(s)
- Yu Zhang
- School of Biological Sciences and Engineering, Shaanxi University of Technology, Hanzhong, 72300 Shaanxi China
| | - Yuexing Wang
- College of Agronomy, Xinjiang Agricultural University, Urumqi, 830052 China
| | - Wanying Zhou
- School of Biological Sciences and Engineering, Shaanxi University of Technology, Hanzhong, 72300 Shaanxi China
| | - Shimao Zheng
- School of Biological Sciences and Engineering, Shaanxi University of Technology, Hanzhong, 72300 Shaanxi China
| | - Runzhou Ye
- Faculté de Médecine Et Des Sciences de La Santé, Université de Sherbrooke, Sherbrooke, QC J1H 5N4 Canada
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16
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Xu X, Chen Y, Li B, Zhang Z, Qin G, Chen T, Tian S. Molecular mechanisms underlying multi-level defense responses of horticultural crops to fungal pathogens. HORTICULTURE RESEARCH 2022; 9:uhac066. [PMID: 35591926 PMCID: PMC9113409 DOI: 10.1093/hr/uhac066] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 03/07/2022] [Indexed: 05/21/2023]
Abstract
The horticultural industry helps to enrich and improve the human diet while contributing to growth of the agricultural economy. However, fungal diseases of horticultural crops frequently occur during pre- and postharvest periods, reducing yields and crop quality and causing huge economic losses and wasted food. Outcomes of fungal diseases depend on both horticultural plant defense responses and fungal pathogenicity. Plant defense responses are highly sophisticated and are generally divided into preformed and induced defense responses. Preformed defense responses include both physical barriers and phytochemicals, which are the first line of protection. Induced defense responses, which include innate immunity (pattern-triggered immunity and effector-triggered immunity), local defense responses, and systemic defense signaling, are triggered to counterstrike fungal pathogens. Therefore, to develop regulatory strategies for horticultural plant resistance, a comprehensive understanding of defense responses and their underlying mechanisms is critical. Recently, integrated multi-omics analyses, CRISPR-Cas9-based gene editing, high-throughput sequencing, and data mining have greatly contributed to identification and functional determination of novel phytochemicals, regulatory factors, and signaling molecules and their signaling pathways in plant resistance. In this review, research progress on defense responses of horticultural crops to fungal pathogens and novel regulatory strategies to regulate induction of plant resistance are summarized, and then the problems, challenges, and future research directions are examined.
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Affiliation(s)
- Xiaodi Xu
- Key Laboratory of Plant Resources, Institute of Botany, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100093, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yong Chen
- Key Laboratory of Plant Resources, Institute of Botany, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100093, China
| | - Boqiang Li
- Key Laboratory of Plant Resources, Institute of Botany, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100093, China
| | - Zhanquan Zhang
- Key Laboratory of Plant Resources, Institute of Botany, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100093, China
| | - Guozheng Qin
- Key Laboratory of Plant Resources, Institute of Botany, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100093, China
| | - Tong Chen
- Key Laboratory of Plant Resources, Institute of Botany, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100093, China
- Corresponding authors. E-mail: ;
| | - Shiping Tian
- Key Laboratory of Plant Resources, Institute of Botany, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100093, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
- Corresponding authors. E-mail: ;
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17
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Transcriptome analysis of Kentucky bluegrass subject to drought and ethephon treatment. PLoS One 2021; 16:e0261472. [PMID: 34914788 PMCID: PMC8675742 DOI: 10.1371/journal.pone.0261472] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 12/03/2021] [Indexed: 11/19/2022] Open
Abstract
Kentucky bluegrass (Poa pratensis L.) is an excellent cool-season turfgrass utilized widely in Northern China. However, turf quality of Kentucky bluegrass declines significantly due to drought. Ethephon seeds-soaking treatment has been proved to effectively improve the drought tolerance of Kentucky bluegrass seedlings. In order to investigate the effect of ethephon leaf-spraying method on drought tolerance of Kentucky bluegrass and understand the underlying mechanism, Kentucky bluegrass plants sprayed with and without ethephon are subjected to either drought or well watered treatments. The relative water content and malondialdehyde conent were measured. Meanwhile, samples were sequenced through Illumina. Results showed that ethephon could improve the drought tolerance of Kentucky bluegrass by elevating relative water content and decreasing malondialdehyde content under drought. Transcriptome analysis showed that 58.43% transcripts (254,331 out of 435,250) were detected as unigenes. A total of 9.69% (24,643 out of 254,331) unigenes were identified as differentially expressed genes in one or more of the pairwise comparisons. Differentially expressed genes due to drought stress with or without ethephon pre-treatment showed that ethephon application affected genes associated with plant hormone, signal transduction pathway and plant defense, protein degradation and stabilization, transportation and osmosis, antioxidant system and the glyoxalase pathway, cell wall and cuticular wax, fatty acid unsaturation and photosynthesis. This study provides a theoretical basis for revealing the mechanism for how ethephon regulates drought response and improves drought tolerance of Kentucky bluegrass.
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18
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Gorelova V, Sprakel J, Weijers D. Plant cell polarity as the nexus of tissue mechanics and morphogenesis. NATURE PLANTS 2021; 7:1548-1559. [PMID: 34887521 DOI: 10.1038/s41477-021-01021-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 10/13/2021] [Indexed: 05/20/2023]
Abstract
How reproducible body patterns emerge from the collective activity of individual cells is a key question in developmental biology. Plant cells are encaged in their walls and unable to migrate. Morphogenesis thus relies on directional cell division, by precise positioning of division planes, and anisotropic cellular growth, mediated by regulated mechanical inhomogeneity of the walls. Both processes require the prior establishment of cell polarity, marked by the formation of polar domains at the plasma membrane, in a number of developmental contexts. The establishment of cell polarity involves biochemical cues, but increasing evidence suggests that mechanical forces also play a prominent instructive role. While evidence for mutual regulation between cell polarity and tissue mechanics is emerging, the nature of this bidirectional feedback remains unclear. Here we review the role of cell polarity at the interface of tissue mechanics and morphogenesis. We also aim to integrate biochemistry-centred insights with concepts derived from physics and physical chemistry. Lastly, we propose a set of questions that will help address the fundamental nature of cell polarization and its mechanistic basis.
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Affiliation(s)
- Vera Gorelova
- Laboratory of Biochemistry, Wageningen University and Research, Wageningen, the Netherlands
| | - Joris Sprakel
- Physical Chemistry and Soft Matter, Wageningen University and Research, Wageningen, the Netherlands
| | - Dolf Weijers
- Laboratory of Biochemistry, Wageningen University and Research, Wageningen, the Netherlands.
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19
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Reimer JJ, Thiele B, Biermann RT, Junker-Frohn LV, Wiese-Klinkenberg A, Usadel B, Wormit A. Tomato leaves under stress: a comparison of stress response to mild abiotic stress between a cultivated and a wild tomato species. PLANT MOLECULAR BIOLOGY 2021; 107:177-206. [PMID: 34677706 PMCID: PMC8553704 DOI: 10.1007/s11103-021-01194-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 09/16/2021] [Indexed: 05/03/2023]
Abstract
Tomato is one of the most produced crop plants on earth and growing in the fields and greenhouses all over the world. Breeding with known traits of wild species can enhance stress tolerance of cultivated crops. In this study, we investigated responses of the transcriptome as well as primary and secondary metabolites in leaves of a cultivated and a wild tomato to several abiotic stresses such as nitrogen deficiency, chilling or warmer temperatures, elevated light intensities and combinations thereof. The wild species responded different to varied temperature conditions compared to the cultivated tomato. Nitrogen deficiency caused the strongest responses and induced in particular the secondary metabolism in both species but to much higher extent in the cultivated tomato. Our study supports the potential of a targeted induction of valuable secondary metabolites in green residues of horticultural production, that will otherwise only be composted after fruit harvest. In particular, the cultivated tomato showed a strong induction in the group of mono caffeoylquinic acids in response to nitrogen deficiency. In addition, the observed differences in stress responses between cultivated and wild tomato can lead to new breeding targets for better stress tolerance.
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Affiliation(s)
- Julia J Reimer
- Institute for Biology I, RWTH Aachen University, Worringer Weg 3, 52074, Aachen, Germany
- Bioeconomy Science Center, c/o Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
- Forschungszentrum Jülich GmbH, PtJ, 52425, Jülich, Germany
| | - Björn Thiele
- Forschungszentrum Jülich GmbH, Institute of Bio- and Geosciences, Plant Sciences (IBG-2), 52425, Jülich, Germany
- Forschungszentrum Jülich GmbH, Institute of Bio- and Geosciences, Agrosphere (IBG-3), 52425, Jülich, Germany
- Bioeconomy Science Center, c/o Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
| | - Robin T Biermann
- Institute for Biology I, RWTH Aachen University, Worringer Weg 3, 52074, Aachen, Germany
- Leibniz Institute of Vegetable and Ornamental Crops (IGZ) e.V., 14979, Großbeeren, Germany
| | - Laura V Junker-Frohn
- Forschungszentrum Jülich GmbH, Institute of Bio- and Geosciences, Plant Sciences (IBG-2), 52425, Jülich, Germany
- Bioeconomy Science Center, c/o Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
| | - Anika Wiese-Klinkenberg
- Forschungszentrum Jülich GmbH, Institute of Bio- and Geosciences, Plant Sciences (IBG-2), 52425, Jülich, Germany
- Forschungszentrum Jülich GmbH, Institute of Bio- and Geosciences, Bioinformatics (IBG-4), 52425, Jülich, Germany
- Bioeconomy Science Center, c/o Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
| | - Björn Usadel
- Institute for Biology I, RWTH Aachen University, Worringer Weg 3, 52074, Aachen, Germany
- Forschungszentrum Jülich GmbH, Institute of Bio- and Geosciences, Plant Sciences (IBG-2), 52425, Jülich, Germany
- Forschungszentrum Jülich GmbH, Institute of Bio- and Geosciences, Bioinformatics (IBG-4), 52425, Jülich, Germany
- Bioeconomy Science Center, c/o Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
- Heinrich-Heine-University, Chair of Biological Data Science, 40225, Düsseldorf, Germany
| | - Alexandra Wormit
- Institute for Biology I, RWTH Aachen University, Worringer Weg 3, 52074, Aachen, Germany.
- Bioeconomy Science Center, c/o Forschungszentrum Jülich GmbH, 52425, Jülich, Germany.
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20
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Fratini M, Krishnamoorthy P, Stenzel I, Riechmann M, Matzner M, Bacia K, Heilmann M, Heilmann I. Plasma membrane nano-organization specifies phosphoinositide effects on Rho-GTPases and actin dynamics in tobacco pollen tubes. THE PLANT CELL 2021; 33:642-670. [PMID: 33955493 PMCID: PMC8136918 DOI: 10.1093/plcell/koaa035] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 11/23/2020] [Indexed: 05/04/2023]
Abstract
Pollen tube growth requires coordination of cytoskeletal dynamics and apical secretion. The regulatory phospholipid phosphatidylinositol 4,5-bisphosphate (PtdIns(4,5)P2) is enriched in the subapical plasma membrane of pollen tubes of Arabidopsis thaliana and tobacco (Nicotiana tabacum) and can influence both actin dynamics and secretion. How alternative PtdIns(4,5)P2 effects are specified is unclear. In tobacco pollen tubes, spinning disc microscopy (SD) reveals dual distribution of a fluorescent PtdIns(4,5)P2-reporter in dynamic plasma membrane nanodomains vs. apparent diffuse membrane labeling, consistent with spatially distinct coexisting pools of PtdIns(4,5)P2. Several PI4P 5-kinases (PIP5Ks) can generate PtdIns(4,5)P2 in pollen tubes. Despite localizing to one membrane region, the PIP5Ks AtPIP5K2-EYFP and NtPIP5K6-EYFP display distinctive overexpression effects on cell morphologies, respectively related to altered actin dynamics or membrane trafficking. When analyzed by SD, AtPIP5K2-EYFP associated with nanodomains, whereas NtPIP5K6-EYFP localized diffusely. Chimeric AtPIP5K2-EYFP and NtPIP5K6-EYFP variants with reciprocally swapped membrane-associating domains evoked reciprocally shifted effects on cell morphology upon overexpression. Overall, active PI4P 5-kinase variants stabilized actin when targeted to nanodomains, suggesting a role of nanodomain-associated PtdIns(4,5)P2 in actin regulation. This notion is further supported by interaction and proximity of nanodomain-associated AtPIP5K2 with the Rho-GTPase NtRac5, and by its functional interplay with elements of Rho of plants signaling. Plasma membrane nano-organization may thus aid the specification of PtdIns(4,5)P2 functions to coordinate cytoskeletal dynamics and secretion.
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Affiliation(s)
- Marta Fratini
- Department of Plant Biochemistry, Institute of Biochemistry and Biotechnology, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Praveen Krishnamoorthy
- Department of Plant Biochemistry, Institute of Biochemistry and Biotechnology, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Irene Stenzel
- Department of Plant Biochemistry, Institute of Biochemistry and Biotechnology, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Mara Riechmann
- Department of Plant Biochemistry, Institute of Biochemistry and Biotechnology, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Monique Matzner
- Department of Plant Biochemistry, Institute of Biochemistry and Biotechnology, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Kirsten Bacia
- Department of Biophysical Chemistry, Institute of Chemistry, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Mareike Heilmann
- Department of Plant Biochemistry, Institute of Biochemistry and Biotechnology, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - Ingo Heilmann
- Department of Plant Biochemistry, Institute of Biochemistry and Biotechnology, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
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21
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Gouguet P, Gronnier J, Legrand A, Perraki A, Jolivet MD, Deroubaix AF, German-Retana S, Boudsocq M, Habenstein B, Mongrand S, Germain V. Connecting the dots: from nanodomains to physiological functions of REMORINs. PLANT PHYSIOLOGY 2021; 185:632-649. [PMID: 33793872 PMCID: PMC8133660 DOI: 10.1093/plphys/kiaa063] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 10/31/2020] [Indexed: 05/11/2023]
Abstract
REMORINs (REMs) are a plant-specific protein family, proposed regulators of membrane-associated molecular assemblies and well-established markers of plasma membrane nanodomains. REMs play a diverse set of functions in plant interactions with pathogens and symbionts, responses to abiotic stresses, hormone signaling and cell-to-cell communication. In this review, we highlight the established and more putative roles of REMs throughout the literature. We discuss the physiological functions of REMs, the mechanisms underlying their nanodomain-organization and their putative role as regulators of nanodomain-associated molecular assemblies. Furthermore, we discuss how REM phosphorylation may regulate their functional versatility. Overall, through data-mining and comparative analysis of the literature, we suggest how to further study the molecular mechanisms underpinning the functions of REMs.
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Affiliation(s)
- Paul Gouguet
- Laboratoire de Biogenèse Membranaire (LBM), Unité Mixte de Recherche UMR 5200, CNRS, Université de Bordeaux, Villenave d’Ornon, France
- ZMBP, Universität Tübingen, Auf der Morgenstelle 32 72076 Tübingen, Germany
| | - Julien Gronnier
- Department of Plant and Microbial Biology University of Zürich, Zollikerstrasse, Zürich, Switzerland
| | - Anthony Legrand
- Laboratoire de Biogenèse Membranaire (LBM), Unité Mixte de Recherche UMR 5200, CNRS, Université de Bordeaux, Villenave d’Ornon, France
- Institute of Chemistry & Biology of Membranes & Nanoobjects (UMR5248 CBMN), IECB, CNRS, Université de Bordeaux, Institut Polytechnique de Bordeaux, A11, Geoffroy Saint-Hilaire, Pessac, France
| | - Artemis Perraki
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge, UK
- Present address: Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology – Hellas, Heraklion, Crete, Greece
| | - Marie-Dominique Jolivet
- Laboratoire de Biogenèse Membranaire (LBM), Unité Mixte de Recherche UMR 5200, CNRS, Université de Bordeaux, Villenave d’Ornon, France
| | - Anne-Flore Deroubaix
- Laboratoire de Biogenèse Membranaire (LBM), Unité Mixte de Recherche UMR 5200, CNRS, Université de Bordeaux, Villenave d’Ornon, France
| | - Sylvie German-Retana
- Equipe de Virologie, Institut Scientifique de Recherche Agronomique and Université de Bordeaux, BP81, 33883 Villenave d’Ornon, France
| | - Marie Boudsocq
- Université Paris-Saclay, CNRS, INRAE, Université d’Evry, Institute of Plant Sciences Paris Saclay (IPS2), Université de Paris, Orsay, France
| | - Birgit Habenstein
- Institute of Chemistry & Biology of Membranes & Nanoobjects (UMR5248 CBMN), IECB, CNRS, Université de Bordeaux, Institut Polytechnique de Bordeaux, A11, Geoffroy Saint-Hilaire, Pessac, France
| | - Sébastien Mongrand
- Laboratoire de Biogenèse Membranaire (LBM), Unité Mixte de Recherche UMR 5200, CNRS, Université de Bordeaux, Villenave d’Ornon, France
- Author for communication: (S.M.)
| | - Véronique Germain
- Laboratoire de Biogenèse Membranaire (LBM), Unité Mixte de Recherche UMR 5200, CNRS, Université de Bordeaux, Villenave d’Ornon, France
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22
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Assembly of pathway enzymes by engineering functional membrane microdomain components for improved N-acetylglucosamine synthesis in Bacillus subtilis. Metab Eng 2020; 61:96-105. [DOI: 10.1016/j.ymben.2020.05.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 05/12/2020] [Accepted: 05/25/2020] [Indexed: 12/16/2022]
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23
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Yu Y. Remorins: Essential Regulators in Plant-Microbe Interaction and Cell Death Induction. PLANT PHYSIOLOGY 2020; 183:435-436. [PMID: 32493806 PMCID: PMC7271777 DOI: 10.1104/pp.20.00490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Affiliation(s)
- Yunqing Yu
- Donald Danforth Plant Science Center, Saint Louis, Missouri 63132
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24
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Cai J, Chen T, Wang Y, Qin G, Tian S. SlREM1 Triggers Cell Death by Activating an Oxidative Burst and Other Regulators. PLANT PHYSIOLOGY 2020; 183:717-732. [PMID: 32317359 PMCID: PMC7271787 DOI: 10.1104/pp.20.00120] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 03/23/2020] [Indexed: 05/18/2023]
Abstract
Programmed cell death (PCD), a highly regulated feature of the plant immune response, involves multiple molecular players. Remorins (REMs) are plant-specific proteins with varied biological functions, but their function in PCD and plant defense remains largely unknown. Here, we report a role for remorin in disease resistance, immune response, and PCD regulation. Overexpression of tomato (Solanum lycopersicum) REMORIN1 (SlREM1) increased susceptibility of tomato to the necrotrophic fungus Botrytis cinerea and heterologous expression of this gene triggered cell death in Nicotiana benthamiana leaves. Further investigation indicated that amino acids 173 to 187 and phosphorylation of SlREM1 played key roles in SlREM1-triggered cell death. Intriguingly, multiple tomato REMs induced cell death in N benthamiana leaves. Yeast two-hybrid, split luciferase complementation, and coimmunoprecipitation assays all demonstrated that remorin proteins could form homo- and heterocomplexes. Using isobaric tags for relative and absolute quantitative proteomics, we identified that some proteins related to cell death regulation, as well as N benthamiana RESPIRATORY BURST OXIDASE HOMOLOG B (which is essential for reactive oxygen species production), were notably upregulated in SlREM1-expressing leaves. Heterologous expression of SlREM1 increased reactive oxygen species accumulation and triggered other cell death regulators. Our findings indicate that SlREM1 is a positive regulator of plant cell death and provide clues for understanding the PCD molecular regulatory network in plants.
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Affiliation(s)
- Jianghua Cai
- Key Laboratory of Plant Resources, Institute of Botany, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100093, China
- University of Chinese Academy of Sciences, Yuquanlu, Beijing 100049, China
| | - Tong Chen
- Key Laboratory of Plant Resources, Institute of Botany, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100093, China
| | - Ying Wang
- Key Laboratory of Plant Resources, Institute of Botany, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100093, China
- University of Chinese Academy of Sciences, Yuquanlu, Beijing 100049, China
| | - Guozheng Qin
- Key Laboratory of Plant Resources, Institute of Botany, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100093, China
- University of Chinese Academy of Sciences, Yuquanlu, Beijing 100049, China
| | - Shiping Tian
- Key Laboratory of Plant Resources, Institute of Botany, Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing 100093, China
- University of Chinese Academy of Sciences, Yuquanlu, Beijing 100049, China
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25
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Zhang H, Deng C, Wu X, Yao J, Zhang Y, Zhang Y, Deng S, Zhao N, Zhao R, Zhou X, Lu C, Lin S, Chen S. Populus euphratica remorin 6.5 activates plasma membrane H+-ATPases to mediate salt tolerance. TREE PHYSIOLOGY 2020; 40:731-745. [PMID: 32159803 DOI: 10.1093/treephys/tpaa022] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 02/20/2020] [Indexed: 06/10/2023]
Abstract
Remorins (REMs) play an important role in the ability of plants to adapt to adverse environments. PeREM6.5, a protein of the REM family in Populus euphratica (salt-resistant poplar), was induced by NaCl stress in callus, roots and leaves. We cloned the full-length PeREM6.5 from P. euphratica and transformed it into Escherichia coli and Arabidopsis thaliana. PeREM6.5 recombinant protein significantly increased the H+-ATPase hydrolytic activity and H+ transport activity in P. euphratica plasma membrane (PM) vesicles. Yeast two-hybrid assay showed that P. euphratica REM6.5 interacted with RPM1-interacting protein 4 (PeRIN4). Notably, the PeREM6.5-induced increase in PM H+-ATPase activity was enhanced by PeRIN4 recombinant protein. Overexpression of PeREM6.5 in Arabidopsis significantly improved salt tolerance in transgenic plants in terms of survival rate, root growth, electrolyte leakage and malondialdehyde content. Arabidopsis plants overexpressing PeREM6.5 retained high PM H+-ATPase activity in both in vivo and in vitro assays. PeREM6.5-transgenic plants had reduced accumulation of Na+ due to the Na+ extrusion promoted by the H+-ATPases. Moreover, the H+ pumps caused hyperpolarization of the PM, which reduced the K+ loss mediated by the depolarization-activated channels in the PM of salinized roots. Therefore, we conclude that PeREM6.5 regulated H+-ATPase activity in the PM, thus enhancing the plant capacity to maintain ionic homeostasis under salinity.
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Affiliation(s)
- Huilong Zhang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology (Box 162), Beijing Forestry University, Beijing 100083, China
- Tianjin Research Institute of Forestry of Chinese Academy of Forestry, Tianjin 300450, China
| | - Chen Deng
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology (Box 162), Beijing Forestry University, Beijing 100083, China
| | - Xia Wu
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology (Box 162), Beijing Forestry University, Beijing 100083, China
| | - Jun Yao
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology (Box 162), Beijing Forestry University, Beijing 100083, China
| | - Yanli Zhang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology (Box 162), Beijing Forestry University, Beijing 100083, China
| | - Yinan Zhang
- Forestry Institute of New Technology, Chinese Academy of Forestry, Beijing 100091, China
| | - Shurong Deng
- State Key Laboratory of Tree Genetics and Breeding, The Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
| | - Nan Zhao
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology (Box 162), Beijing Forestry University, Beijing 100083, China
| | - Rui Zhao
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology (Box 162), Beijing Forestry University, Beijing 100083, China
| | - Xiaoyang Zhou
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology (Box 162), Beijing Forestry University, Beijing 100083, China
| | - Cunfu Lu
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology (Box 162), Beijing Forestry University, Beijing 100083, China
| | - Shanzhi Lin
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology (Box 162), Beijing Forestry University, Beijing 100083, China
| | - Shaoliang Chen
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, College of Biological Sciences and Technology (Box 162), Beijing Forestry University, Beijing 100083, China
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26
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Didelon M, Khafif M, Godiard L, Barbacci A, Raffaele S. Patterns of Sequence and Expression Diversification Associate Members of the PADRE Gene Family With Response to Fungal Pathogens. Front Genet 2020; 11:491. [PMID: 32547597 PMCID: PMC7272662 DOI: 10.3389/fgene.2020.00491] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 04/20/2020] [Indexed: 12/31/2022] Open
Abstract
Pathogen infection triggers extensive reprogramming of the plant transcriptome, including numerous genes the function of which is unknown. Due to their wide taxonomic distribution, genes encoding proteins with Domains of Unknown Function (DUFs) activated upon pathogen challenge likely play important roles in disease. In Arabidopsis thaliana, we identified thirteen genes harboring a DUF4228 domain in the top 10% most induced genes after infection by the fungal pathogen Sclerotinia sclerotiorum. Based on functional information collected through homology and contextual searches, we propose to refer to this domain as the pathogen and abiotic stress response, cadmium tolerance, disordered region-containing (PADRE) domain. Genome-wide and phylogenetic analyses indicated that PADRE is specific to plants and diversified into 10 subfamilies early in the evolution of Angiosperms. PADRE typically occurs in small single-domain proteins with a bipartite architecture. PADRE N-terminus harbors conserved sequence motifs, while its C-terminus includes an intrinsically disordered region with multiple phosphorylation sites. A pangenomic survey of PADRE genes expression upon S. sclerotiorum inoculation in Arabidopsis, castor bean, and tomato indicated consistent expression across species within phylogenetic groups. Multi-stress expression profiling and co-expression network analyses associated AtPADRE genes with the induction of anthocyanin biosynthesis and responses to chitin and to hypoxia. Our analyses reveal patterns of sequence and expression diversification consistent with the evolution of a role in disease resistance for an uncharacterized family of plant genes. These findings highlight PADRE genes as prime candidates for the functional dissection of mechanisms underlying plant disease resistance to fungi.
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Affiliation(s)
| | | | | | | | - Sylvain Raffaele
- Université de Toulouse, Laboratoire des Interactions Plantes Micro-organismes (LIPM), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) – Centre National de la Recherche Scientifique (CNRS), Castanet-Tolosan, France
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27
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Lv X, Wu Y, Tian R, Gu Y, Liu Y, Li J, Du G, Ledesma-Amaro R, Liu L. Synthetic metabolic channel by functional membrane microdomains for compartmentalized flux control. Metab Eng 2020; 59:106-118. [DOI: 10.1016/j.ymben.2020.02.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 02/17/2020] [Accepted: 02/17/2020] [Indexed: 10/24/2022]
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28
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Jaillais Y, Ott T. The Nanoscale Organization of the Plasma Membrane and Its Importance in Signaling: A Proteolipid Perspective. PLANT PHYSIOLOGY 2020; 182:1682-1696. [PMID: 31857424 PMCID: PMC7140965 DOI: 10.1104/pp.19.01349] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 12/09/2019] [Indexed: 05/12/2023]
Abstract
Plasma membranes provide a highly selective environment for a large number of transmembrane and membrane-associated proteins. Whereas lateral movement of proteins in this lipid bilayer is possible, it is rather limited in turgid and cell wall-shielded plant cells. However, membrane-resident signaling processes occur on subsecond scales that cannot be explained by simple diffusion models. Accordingly, several receptors and other membrane-associated proteins are organized and functional in membrane nanodomains. Although the general presence of membrane nanodomains has become widely accepted as fact, fundamental functional aspects, the roles of individual lipid species and their interplay with proteins, and aspects of nanodomain maintenance and persistence remain poorly understood. Here, we review the current knowledge of nanodomain organization and function, with a particular focus on signaling processes involving proteins, lipids, and their interactions. Furthermore, we propose new and hypothetical aspects of plant membrane biology that we consider important for future research.
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Affiliation(s)
- Yvon Jaillais
- Laboratoire Reproduction et Développement des Plantes, Université de Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRAE, F-69342 Lyon, France
| | - Thomas Ott
- Cell Biology, Faculty of Biology, Centre for Integrative Biological Signalling Studies (CIBSS), University of Freiburg, 79104 Freiburg, Germany
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29
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Internalization of miPEP165a into Arabidopsis Roots Depends on Both Passive Diffusion and Endocytosis-Associated Processes. Int J Mol Sci 2020; 21:ijms21072266. [PMID: 32218176 PMCID: PMC7178249 DOI: 10.3390/ijms21072266] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 03/21/2020] [Accepted: 03/22/2020] [Indexed: 12/12/2022] Open
Abstract
MiPEPs are short natural peptides encoded by microRNAs in plants. Exogenous application of miPEPs increases the expression of their corresponding miRNA and, consequently, induces consistent phenotypical changes. Therefore, miPEPs carry huge potential in agronomy as gene regulators that do not require genome manipulation. However, to this end, it is necessary to know their mode of action, including where they act and how they enter the plants. Here, after analyzing the effect of Arabidopsis thaliana miPEP165a on root and aerial part development, we followed the internalization of fluorescent-labelled miPEP165a into roots and compared its uptake into endocytosis-altered mutants to that observed in wild-type plants treated or not with endocytosis inhibitors. The results show that entry of miPEP165a involves both a passive diffusion at the root apex and endocytosis-associated internalization in the differentiation and mature zones. Moreover, miPEP165a is unable to enter the central cylinder and does not migrate from the roots to the aerial part of the plant, suggesting that miPEPs have no systemic effect.
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30
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Cheng G, Yang Z, Zhang H, Zhang J, Xu J. Remorin interacting with PCaP1 impairs Turnip mosaic virus intercellular movement but is antagonised by VPg. THE NEW PHYTOLOGIST 2020; 225:2122-2139. [PMID: 31657467 DOI: 10.1111/nph.16285] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 10/18/2019] [Indexed: 06/10/2023]
Abstract
Group 1 Remorins (REMs) are extensively involved in virus trafficking through plasmodesmata (PD). However, their roles in Potyvirus cell-to-cell movement are not known. The plasma membrane (PM)-associated Ca2+ binding protein 1 (PCaP1) interacts with the P3N-PIPO of Turnip mosaic virus (TuMV) and is required for TuMV cell-to-cell movement, but the underlying mechanism remains elusive. The mutant plants with overexpression or knockout of REM1.2 were used to investigate its role in TuMV cell-to-cell movement. Arabidopsis thaliana complementary mutants of pcap1 were used to investigate the role of PCaP1 in TuMV cell-to-cell movement. Yeast-two-hybrid, bimolecular fluorescence complementation, co-immunoprecipitation and RT-qPCR assays were employed to investigate the underlying molecular mechanism. The results show that TuMV-P3N-PIPO recruits PCaP1 to PD and the actin filament-severing activity of PCaP1 is required for TuMV intercellular movement. REM1.2 negatively regulates the cell-to-cell movement of TuMV via competition with PCaP1 for binding actin filaments. As a counteractive response, TuMV mediates REM1.2 degradation via both 26S ubiquitin-proteasome and autophagy pathways through the interaction of VPg with REM1.2 to establish systemic infection in Arabidopsis. This work unveils the actin cytoskeleton and PM nanodomain-associated molecular events underlying the cell-to-cell movement of potyviruses.
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Affiliation(s)
- Guangyuan Cheng
- National Engineering Research Center for Sugarcane, Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Jinshan, Fuzhou, 350002, China
| | - Zongtao Yang
- National Engineering Research Center for Sugarcane, Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Jinshan, Fuzhou, 350002, China
| | - Hai Zhang
- National Engineering Research Center for Sugarcane, Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Jinshan, Fuzhou, 350002, China
| | - Jisen Zhang
- National Engineering Research Center for Sugarcane, Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Jinshan, Fuzhou, 350002, China
- Center for Genomics and Biotechnology, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Haixia Institute of Science and Technology (HIST), Fujian Agriculture and Forestry University, Jinshan, Fuzhou, 350002, China
| | - Jingsheng Xu
- National Engineering Research Center for Sugarcane, Key Laboratory of Sugarcane Biology and Genetic Breeding, Ministry of Agriculture, Fujian Agriculture and Forestry University, Jinshan, Fuzhou, 350002, China
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31
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Hou XM, Zhang HF, Liu SY, Wang XK, Zhang YM, Meng YC, Luo D, Chen RG. The NAC transcription factor CaNAC064 is a regulator of cold stress tolerance in peppers. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2020; 291:110346. [PMID: 31928677 DOI: 10.1016/j.plantsci.2019.110346] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 10/26/2019] [Accepted: 11/02/2019] [Indexed: 05/18/2023]
Abstract
NAC (NAM, ATAF1/2 and CUC2) proteins are plant-specific transcription factors (TFs) that are important in plant abiotic stress responses. In this study we isolated a NAC gene from Capsicum annuum leaves, designated as CaNAC064. We characterized the amino acid sequence of CaNAC064 and found that it contain conserved domains of the NAC family, including a highly conserved N-terminus domain and a highly variable C-terminus domain. Expression analysis showed that the 40C, 400C, salicylic acid (SA) and abscisic acid (ABA) treatments strongly induced the expression of CaNAC064 through silencing of CaNAC064 in pepper and overexpressing in Arabidopsis. CaNAC064-silenced pepper plants exhibited more serious wilting, higher MDA contents and chilling injury index, lower proline content, and more accumulation of ROS in the leaves after cold stress. The CaNAC064-overexpressing Arabidopsis plants exhibited lower MDA content, chilling injury index and relative electrolyte leakage content as compared to WT plants under cold stress. Transcriptional activation activity analysis indicated that CaNAC064 has transcriptional activation activity in the 691-1071 bp key region. We identified 45 proteins that putatively interact with CaNAC064 using the Yeast Two-Hybrid method. According to the Yeast Two-Hybrid and BIFC results, CaNAC064 interacted with low temperature-induced haplo-proteinase proteins in plant cell. These results suggested that CaNAC064 positively modulates plant cold-tolerance, laying the foundation for future investigations into the role of NACs as regulatory proteins of cold tolerance in plants.
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Affiliation(s)
- Xiao-Ming Hou
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Hua-Feng Zhang
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Su-Ya Liu
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xin-Ke Wang
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yu-Meng Zhang
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yuan-Cheng Meng
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Dan Luo
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Ru-Gang Chen
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, 712100, China.
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The Origin of Land Plants Is Rooted in Two Bursts of Genomic Novelty. Curr Biol 2020; 30:530-536.e2. [DOI: 10.1016/j.cub.2019.11.090] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 10/15/2019] [Accepted: 11/29/2019] [Indexed: 12/22/2022]
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Yu M, Cui Y, Zhang X, Li R, Lin J. Organization and dynamics of functional plant membrane microdomains. Cell Mol Life Sci 2020; 77:275-287. [PMID: 31422442 PMCID: PMC11104912 DOI: 10.1007/s00018-019-03270-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 07/29/2019] [Accepted: 08/09/2019] [Indexed: 02/07/2023]
Abstract
Plasma membranes are heterogeneous and laterally compartmentalized into distinct microdomains. These membrane microdomains consist of special lipids and proteins and are thought to act as signaling platforms. In plants, membrane microdomains have been detected by super-resolution microscopy, and there is evidence that they play roles in several biological processes. Here, we review current knowledge about the lipid and protein components of membrane microdomains. Furthermore, we summarize the dynamics of membrane microdomains in response to different stimuli. We also explore the biological functions associated with membrane microdomains as signal integration hubs. Finally, we outline challenges and questions for further studies.
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Affiliation(s)
- Meng Yu
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, 100083, China
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China
| | - Yaning Cui
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China
| | - Xi Zhang
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China
| | - Ruili Li
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, 100083, China.
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China.
| | - Jinxing Lin
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing, 100083, China.
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China.
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Reagan BC, Burch-Smith TM. Viruses Reveal the Secrets of Plasmodesmal Cell Biology. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2020; 33:26-39. [PMID: 31715107 DOI: 10.1094/mpmi-07-19-0212-fi] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Plasmodesmata (PD) are essential for intercellular trafficking of molecules required for plant life, from small molecules like sugars and ions to macromolecules including proteins and RNA molecules that act as signals to regulate plant development and defense. As obligate intracellular pathogens, plant viruses have evolved to manipulate this communication system to facilitate the initial cell-to-cell and eventual systemic spread in their plant hosts. There has been considerable interest in how viruses manipulate the PD that connect the protoplasts of neighboring cells, and viruses have yielded invaluable tools for probing the structure and function of PD. With recent advances in biochemistry and imaging, we have gained new insights into the composition and structure of PD in the presence and absence of viruses. Here, we first discuss viral strategies for manipulating PD for their intercellular movement and examine how this has shed light on our understanding of native PD function. We then address the controversial role of the cytoskeleton in trafficking to and through PD. Finally, we address how viruses could alter PD structure and consider possible mechanisms of the phenomenon described as 'gating'. This discussion supports the significance of virus research in elucidating the properties of PD, these persistently enigmatic plant organelles.
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Affiliation(s)
- Brandon C Reagan
- Department of Biochemistry & Cellular and Molecular Biology, University of Tennessee, Knoxville, TN 37996, U.S.A
| | - Tessa M Burch-Smith
- Department of Biochemistry & Cellular and Molecular Biology, University of Tennessee, Knoxville, TN 37996, U.S.A
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Wang S, Chen Z, Tian L, Ding Y, Zhang J, Zhou J, Liu P, Chen Y, Wu L. Comparative proteomics combined with analyses of transgenic plants reveal ZmREM1.3 mediates maize resistance to southern corn rust. PLANT BIOTECHNOLOGY JOURNAL 2019; 17:2153-2168. [PMID: 30972847 PMCID: PMC6790363 DOI: 10.1111/pbi.13129] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 03/08/2019] [Accepted: 04/02/2019] [Indexed: 05/25/2023]
Abstract
Southern corn rust (SCR), which is a destructive disease caused by Puccinia polysora Underw. (P. polysora), commonly occurs in warm-temperate and tropical regions. To identify candidate proteins related to SCR resistance and characterize the molecular mechanisms underlying the maize-P. polysora interaction, a comparative proteomic analysis of susceptible and resistant maize lines was performed. Statistical analyses revealed 1489 differentially abundant proteins in the resistant line, as well as 1035 differentially abundant proteins in the susceptible line. After the P. polysora infection, the abundance of one remorin protein (ZmREM1.3) increased in the resistant genotype, but decreased in the susceptible genotype. Plant-specific remorins are important for responses to microbial infections as well as plant signalling processes. In this study, transgenic maize plants overexpressing ZmREM1.3 exhibited enhanced resistance to the biotrophic P. polysora. In contrast, homozygous ZmREM1.3 UniformMu mutant plants were significantly more susceptible to P. polysora than wild-type plants. Additionally, the ZmREM1.3-overexpressing plants accumulated more salicylic acid (SA) and jasmonic acid (JA). Moreover, the expression levels of defence-related genes were higher in ZmREM1.3-overexpressing maize plants than in non-transgenic control plants in response to the P. polysora infection. Overall, our results provide evidence that ZmREM1.3 positively regulates maize defences against P. polysora likely via SA/JA-mediated defence signalling pathways. This study represents the first large-scale proteomic analysis of the molecular mechanisms underlying the maize-P. polysora interaction. This is also the first report confirming the remorin protein family affects plant resistance to SCR.
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Affiliation(s)
- Shunxi Wang
- Synergetic Innovation Center of Henan Grain CropsHenan Agricultural UniversityZhengzhouChina
- Key Laboratory of Physiological Ecology and Genetic Improvement of Food Crops in Henan ProvinceZhengzhouChina
| | - Zan Chen
- Synergetic Innovation Center of Henan Grain CropsHenan Agricultural UniversityZhengzhouChina
- Key Laboratory of Physiological Ecology and Genetic Improvement of Food Crops in Henan ProvinceZhengzhouChina
| | - Lei Tian
- Synergetic Innovation Center of Henan Grain CropsHenan Agricultural UniversityZhengzhouChina
- Key Laboratory of Physiological Ecology and Genetic Improvement of Food Crops in Henan ProvinceZhengzhouChina
| | - Yezhang Ding
- Section of Cell and Developmental BiologyUniversity of California at San DiegoLa JollaCAUSA
| | - Jun Zhang
- Cereal Crop Research InstituteHenan Academy of Agricultural SciencesZhengzhouChina
| | - Jinlong Zhou
- Synergetic Innovation Center of Henan Grain CropsHenan Agricultural UniversityZhengzhouChina
- Key Laboratory of Physiological Ecology and Genetic Improvement of Food Crops in Henan ProvinceZhengzhouChina
| | - Ping Liu
- Synergetic Innovation Center of Henan Grain CropsHenan Agricultural UniversityZhengzhouChina
- Key Laboratory of Physiological Ecology and Genetic Improvement of Food Crops in Henan ProvinceZhengzhouChina
| | - Yanhui Chen
- Synergetic Innovation Center of Henan Grain CropsHenan Agricultural UniversityZhengzhouChina
- Key Laboratory of Physiological Ecology and Genetic Improvement of Food Crops in Henan ProvinceZhengzhouChina
| | - Liuji Wu
- Synergetic Innovation Center of Henan Grain CropsHenan Agricultural UniversityZhengzhouChina
- Key Laboratory of Physiological Ecology and Genetic Improvement of Food Crops in Henan ProvinceZhengzhouChina
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Tan QW, Mutwil M. Inferring biosynthetic and gene regulatory networks from Artemisia annua RNA sequencing data on a credit card-sized ARM computer. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2019; 1863:194429. [PMID: 31634636 DOI: 10.1016/j.bbagrm.2019.194429] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 09/06/2019] [Accepted: 09/06/2019] [Indexed: 02/05/2023]
Abstract
Prediction of gene function and gene regulatory networks is one of the most active topics in bioinformatics. The accumulation of publicly available gene expression data for hundreds of plant species, together with advances in bioinformatical methods and affordable computing, sets ingenuity as one of the major bottlenecks in understanding gene function and regulation. Here, we show how a credit card-sized computer retailing for <50 USD can be used to rapidly predict gene function and infer regulatory networks from RNA sequencing data. To achieve this, we constructed a bioinformatical pipeline that downloads and allows quality-control of RNA sequencing data; and generates a gene co-expression network that can reveal enzymes and transcription factors participating and controlling a given biosynthetic pathway. We exemplify this by first identifying genes and transcription factors involved in the biosynthesis of secondary cell wall in the plant Artemisia annua, the main natural source of the anti-malarial drug artemisinin. Networks were then used to dissect the artemisinin biosynthesis pathway, which suggest potential transcription factors regulating artemisinin biosynthesis. We provide the source code of our pipeline (https://github.com/mutwil/LSTrAP-Lite) and envision that the ubiquity of affordable computing, availability of biological data and increased bioinformatical training of biologists will transform the field of bioinformatics. This article is part of a Special Issue entitled: Transcriptional Profiles and Regulatory Gene Networks edited by Dr. Dr. Federico Manuel Giorgi and Dr. Shaun Mahony.
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Affiliation(s)
- Qiao Wen Tan
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore
| | - Marek Mutwil
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore.
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Legrand A, Martinez D, Grélard A, Berbon M, Morvan E, Tawani A, Loquet A, Mongrand S, Habenstein B. Nanodomain Clustering of the Plant Protein Remorin by Solid-State NMR. Front Mol Biosci 2019; 6:107. [PMID: 31681795 PMCID: PMC6803476 DOI: 10.3389/fmolb.2019.00107] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 09/30/2019] [Indexed: 11/24/2022] Open
Abstract
Nanodomains are dynamic membrane subcompartments, enriched in specific lipid, and protein components that act as functional platforms to manage an abundance of cellular processes. The remorin protein of plants is a well-established nanodomain marker and widely serves as a paradigm to study nanodomain clustering. Located at the inner leaflet of the plasma membrane, remorins perform essential functions during signaling. Using deuterium and phosphorus solid-state NMR, we inquire on the molecular determinants of the lipid-protein and protein-protein interactions driving nanodomain clustering. By monitoring thermotropism properties, lipid acyl chain order and membrane thickness, we report the effects of phosphoinositides and sterols on the interaction of various remorin peptides and protein constructs with the membrane. We probed several critical residues involved in this interaction and the involvement of the coiled-coil homo-oligomerisation domain into the formation of remorin nanodomains. We trace the essential role of the pH in nanodomain clustering based on anionic lipids such as phosphoinositides. Our results reveal a complex interplay between specific remorin residues and domains, the environmental pH and their resulting effects on the lipid dynamics for phosphoinositide-enriched membranes.
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Affiliation(s)
- Anthony Legrand
- Institute of Chemistry & Biology of Membranes & Nanoobjects (UMR5248 CBMN), IECB, CNRS, Université Bordeaux, Institut Polytechnique Bordeaux, Pessac, France.,Laboratoire de Biogenèse Membranaire - UMR 5200 - CNRS, Université de Bordeaux, Villenave-d'Ornon, France
| | - Denis Martinez
- Institute of Chemistry & Biology of Membranes & Nanoobjects (UMR5248 CBMN), IECB, CNRS, Université Bordeaux, Institut Polytechnique Bordeaux, Pessac, France
| | - Axelle Grélard
- Institute of Chemistry & Biology of Membranes & Nanoobjects (UMR5248 CBMN), IECB, CNRS, Université Bordeaux, Institut Polytechnique Bordeaux, Pessac, France
| | - Melanie Berbon
- Institute of Chemistry & Biology of Membranes & Nanoobjects (UMR5248 CBMN), IECB, CNRS, Université Bordeaux, Institut Polytechnique Bordeaux, Pessac, France
| | - Estelle Morvan
- European Institute of Chemistry and Biology - UMS3033/US001, Pessac, France
| | - Arpita Tawani
- Institute of Chemistry & Biology of Membranes & Nanoobjects (UMR5248 CBMN), IECB, CNRS, Université Bordeaux, Institut Polytechnique Bordeaux, Pessac, France
| | - Antoine Loquet
- Institute of Chemistry & Biology of Membranes & Nanoobjects (UMR5248 CBMN), IECB, CNRS, Université Bordeaux, Institut Polytechnique Bordeaux, Pessac, France
| | - Sébastien Mongrand
- Laboratoire de Biogenèse Membranaire - UMR 5200 - CNRS, Université de Bordeaux, Villenave-d'Ornon, France
| | - Birgit Habenstein
- Institute of Chemistry & Biology of Membranes & Nanoobjects (UMR5248 CBMN), IECB, CNRS, Université Bordeaux, Institut Polytechnique Bordeaux, Pessac, France
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Salicylic acid-mediated plasmodesmal closure via Remorin-dependent lipid organization. Proc Natl Acad Sci U S A 2019; 116:21274-21284. [PMID: 31575745 PMCID: PMC6800329 DOI: 10.1073/pnas.1911892116] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Plasmodesmata (PD) create cytoplasmic and membrane continuities between adjacent cells to facilitate cell–cell communication and virus movement. Plant cells have evolved diverse mechanisms to regulate PD plasticity against plant pathogens, including the accumulation of the defense hormone, salicylic acid (SA). However, the mechanism of how this occurs is not well understood. Here, we uncover a mechanism by which SA triggers Remorin-dependent membrane lipid nanodomain assembly, leading to enhancement of the liquid-ordered phase. The higher-ordered lipids, which are particularly enriched at PD membrane, decreased PD membrane plasticity, and thus restricted PD opening and impeded virus spreading. Our findings address a knowledge gap in plant defense mechanisms at the membrane level that rely on SA-controlled lipid order and PD closure. Plasmodesmata (PD) are plant-specific membrane-lined channels that create cytoplasmic and membrane continuities between adjacent cells, thereby facilitating cell–cell communication and virus movement. Plant cells have evolved diverse mechanisms to regulate PD plasticity in response to numerous environmental stimuli. In particular, during defense against plant pathogens, the defense hormone, salicylic acid (SA), plays a crucial role in the regulation of PD permeability in a callose-dependent manner. Here, we uncover a mechanism by which plants restrict the spreading of virus and PD cargoes using SA signaling by increasing lipid order and closure of PD. We showed that exogenous SA application triggered the compartmentalization of lipid raft nanodomains through a modulation of the lipid raft-regulatory protein, Remorin (REM). Genetic studies, superresolution imaging, and transmission electron microscopy observation together demonstrated that Arabidopsis REM1.2 and REM1.3 are crucial for plasma membrane nanodomain assembly to control PD aperture and functionality. In addition, we also found that a 14-3-3 epsilon protein modulates REM clustering and membrane nanodomain compartmentalization through its direct interaction with REM proteins. This study unveils a molecular mechanism by which the key plant defense hormone, SA, triggers membrane lipid nanodomain reorganization, thereby regulating PD closure to impede virus spreading.
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Grison MS, Kirk P, Brault ML, Wu XN, Schulze WX, Benitez-Alfonso Y, Immel F, Bayer EM. Plasma Membrane-Associated Receptor-like Kinases Relocalize to Plasmodesmata in Response to Osmotic Stress. PLANT PHYSIOLOGY 2019; 181:142-160. [PMID: 31300470 PMCID: PMC6716232 DOI: 10.1104/pp.19.00473] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 07/02/2019] [Indexed: 05/17/2023]
Abstract
Plasmodesmata act as key elements in intercellular communication, coordinating processes related to plant growth, development, and responses to environmental stresses. While many of the developmental, biotic, and abiotic signals are primarily perceived at the plasma membrane (PM) by receptor proteins, plasmodesmata also cluster receptor-like activities; whether these two pathways interact is currently unknown. Here, we show that specific PM-located Leu-rich-repeat receptor-like-kinases, Qiān Shŏu kinase (QSK1) and inflorescence meristem kinase2, which under optimal growth conditions are absent from plasmodesmata, rapidly relocate and cluster to the pores in response to osmotic stress. This process is remarkably fast, is not a general feature of PM-associated proteins, and is independent of sterol and sphingolipid membrane composition. Focusing on QSK1, previously reported to be involved in stress responses, we show that relocalization in response to mannitol depends on QSK1 phosphorylation. Loss-of-function mutation in QSK1 results in delayed lateral root (LR) development, and the mutant is affected in the root response to mannitol stress. Callose-mediated plasmodesmata regulation is known to regulate LR development. We found that callose levels are reduced in the qsk1 mutant background with a root phenotype resembling ectopic expression of PdBG1, an enzyme that degrades callose at the pores. Both the LR and callose phenotypes can be complemented by expression of wild-type and phosphomimic QSK1 variants, but not by phosphodead QSK1 mutant, which fails to relocalize at plasmodesmata. Together, the data indicate that reorganization of receptor-like-kinases to plasmodesmata is important for the regulation of callose and LR development as part of the plant response to osmotic stress.
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Affiliation(s)
- Magali S Grison
- Laboratoire de Biogenèse Membranaire, UMR5200 Centre National de la Recherche Scientifique, Université de Bordeaux, 71 Avenue Edouard Bourlaux, 33883 Villenave d'Ornon cedex, France
| | - Philip Kirk
- Centre for Plant Science, School of Biology, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Marie L Brault
- Laboratoire de Biogenèse Membranaire, UMR5200 Centre National de la Recherche Scientifique, Université de Bordeaux, 71 Avenue Edouard Bourlaux, 33883 Villenave d'Ornon cedex, France
| | - Xu Na Wu
- Department of Plant Systems Biology, University of Hohenheim, 70593 Stuttgart, Germany
| | - Waltraud X Schulze
- Department of Plant Systems Biology, University of Hohenheim, 70593 Stuttgart, Germany
| | - Yoselin Benitez-Alfonso
- Centre for Plant Science, School of Biology, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Françoise Immel
- Laboratoire de Biogenèse Membranaire, UMR5200 Centre National de la Recherche Scientifique, Université de Bordeaux, 71 Avenue Edouard Bourlaux, 33883 Villenave d'Ornon cedex, France
| | - Emmanuelle M Bayer
- Laboratoire de Biogenèse Membranaire, UMR5200 Centre National de la Recherche Scientifique, Université de Bordeaux, 71 Avenue Edouard Bourlaux, 33883 Villenave d'Ornon cedex, France
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Albers P, Üstün S, Witzel K, Kraner M, Börnke F. A Remorin from Nicotiana benthamiana Interacts with the Pseudomonas Type-III Effector Protein HopZ1a and is Phosphorylated by the Immune-Related Kinase PBS1. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2019; 32:1229-1242. [PMID: 31012804 DOI: 10.1094/mpmi-04-19-0105-r] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The plasma membrane (PM) is at the interface of plant-pathogen interactions and, thus, many bacterial type-III effector (T3E) proteins target membrane-associated processes to interfere with immunity. The Pseudomonas syringae T3E HopZ1a is a host cell PM-localized effector protein that has several immunity-associated host targets but also activates effector-triggered immunity in resistant backgrounds. Although HopZ1a has been shown to interfere with early defense signaling at the PM, no dedicated PM-associated HopZ1a target protein has been identified until now. Here, we show that HopZ1a interacts with the PM-associated remorin protein NbREM4 from Nicotiana benthamiana in several independent assays. NbREM4 relocalizes to membrane nanodomains after treatment with the bacterial elicitor flg22 and transient overexpression of NbREM4 in N. benthamiana induces the expression of a subset of defense-related genes. We can further show that NbREM4 interacts with the immune-related receptor-like cytoplasmic kinase avrPphB-susceptible 1 (PBS1) and is phosphorylated by PBS1 on several residues in vitro. Thus, we conclude that NbREM4 is associated with early defense signaling at the PM. The possible relevance of the HopZ1a-NbREM4 interaction for HopZ1a virulence and avirulence functions is discussed.Copyright © 2019 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.
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Affiliation(s)
- Philip Albers
- Plant Metabolism, Leibniz-Institute of Vegetable and Ornamental Crops (IGZ), 14979 Großbeeren, Germany
| | - Suayib Üstün
- Plant Metabolism, Leibniz-Institute of Vegetable and Ornamental Crops (IGZ), 14979 Großbeeren, Germany
| | - Katja Witzel
- Principles of Integrated Pest Management, Leibniz-Institute of Vegetable and Ornamental Crops (IGZ), 14979 Großbeeren, Germany
| | - Max Kraner
- Friedrich-Alexander-Universität, Department of Biology, Division of Biochemistry, 91058 Erlangen, Germany
| | - Frederik Börnke
- Plant Metabolism, Leibniz-Institute of Vegetable and Ornamental Crops (IGZ), 14979 Großbeeren, Germany
- Institute of Biochemistry and Biology, University of Potsdam, 14476 Potsdam, Germany
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Ray SK, Macoy DM, Kim WY, Lee SY, Kim MG. Role of RIN4 in Regulating PAMP-Triggered Immunity and Effector-Triggered Immunity: Current Status and Future Perspectives. Mol Cells 2019; 42:503-511. [PMID: 31362467 PMCID: PMC6681865 DOI: 10.14348/molcells.2019.2433] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 06/24/2019] [Accepted: 06/24/2019] [Indexed: 12/21/2022] Open
Abstract
As sessile organisms, plants have developed sophisticated system to defend themselves against microbial attack. Since plants do not have specialized immune cells, all plant cells appear to have the innate ability to recognize pathogens and turn on an appropriate defense response. The plant innate immune system has two major branches: PAMPs (pathogen associated molecular patterns)-triggered immunity (PTI) and effector-triggered immunity (ETI). The ability to discriminate between self and non-self is a fundamental feature of living organisms, and it is a prerequisite for the activation of plant defenses specific to microbial infection. Arabidopsis cells express receptors that detect extracellular molecules or structures of the microbes, which are called collectively PAMPs and activate PTI. However, nucleotidebinding site leucine-rich repeats (NB-LRR) proteins mediated ETI is induced by direct or indirect recognition of effector molecules encoded by avr genes. In Arabidopsis, plasmamembrane localized multifunctional protein RIN4 (RPM1interacting protein 4) plays important role in both PTI and ETI. Previous studies have suggested that RIN4 functions as a negative regulator of PTI. In addition, many different bacterial effector proteins modify RIN4 to destabilize plant immunity and several NB-LRR proteins, including RPM1 (resistance to Pseudomonas syringae pv. maculicola 1), RPS2 (resistance to P. syringae 2) guard RIN4. This review summarizes the current studies that have described signaling mechanism of RIN4 function, modification of RIN4 by bacterial effectors and different interacting partner of RIN4 in defense related pathway. In addition, the emerging role of the RIN4 in plant physiology and intercellular signaling as it presents in exosomes will be discussed.
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Affiliation(s)
- Sujit Kumar Ray
- College of Pharmacy, Research Institute of Pharmaceutical Science, and Plant Molecular Biology and Biotechnology Research Center (PMBBRC), Gyeongsang National University, Jinju 52828,
Korea
| | - Donah Mary Macoy
- College of Pharmacy, Research Institute of Pharmaceutical Science, and Plant Molecular Biology and Biotechnology Research Center (PMBBRC), Gyeongsang National University, Jinju 52828,
Korea
| | - Woe-Yeon Kim
- Division of Applied Life Science (BK21 Plus), Plant Molecular Biology and Biotechnology Research Center (PMBBRC), Research Institute of Life Science (RILS), Gyeongsang National University, Jinju 52828,
Korea
| | - Sang Yeol Lee
- Division of Applied Life Sciences (BK21 Plus), Graduate School of Gyeongsang National University, Jinju 52828,
Korea
| | - Min Gab Kim
- College of Pharmacy, Research Institute of Pharmaceutical Science, and Plant Molecular Biology and Biotechnology Research Center (PMBBRC), Gyeongsang National University, Jinju 52828,
Korea
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Hu X, Puri KD, Gurung S, Klosterman SJ, Wallis CM, Britton M, Durbin-Johnson B, Phinney B, Salemi M, Short DPG, Subbarao KV. Proteome and metabolome analyses reveal differential responses in tomato -Verticillium dahliae-interactions. J Proteomics 2019; 207:103449. [PMID: 31323424 DOI: 10.1016/j.jprot.2019.103449] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 06/11/2019] [Accepted: 07/11/2019] [Indexed: 01/15/2023]
Abstract
Verticillium dahliae colonizes vascular tissue and causes vascular discoloration in susceptible hosts. Two well-defined races exist in V. dahliae populations from tomato and lettuce. In this study, proteins and metabolites obtained from stems of race 1-incompatible (Beefsteak) and -compatible (Early Pak) tomato cultivars were characterized. A total of 814 and 584 proteins in Beefsteak; and 456 and 637 proteins in Early Pak were identified in stem extracts of plants inoculated with races 1 and 2, respectively. A significant number of defense-related proteins were expressed in each tomato-V. dahliae interaction, as anticipated. However, phenylalanine ammonia-lyase (PAL), an important defense-associated enzyme of the phenylpropanoid pathway, in addition to remorin 1, NAD-dependent epimerase/dehydratase, and polyphenol oxidase were uniquely expressed in the incompatible interaction. Compared with the uninoculated control, significant overexpression of gene ontology terms associated with lignin biosynthesis, phenylpropanoid pathway and carbohydrate methylation were identified exclusively in the incompatible interaction. Phenolic compounds known to be involved in plant defense mechanisms were at higher levels in the incompatible relative to the compatible interactions. Based on our findings, PAL and enzymes involved defense-related secondary metabolism and the strengthening of cell walls is likely critical to confer resistance to race 1 of V. dahliae in tomato. SIGNIFICANCE: Verticillium dahliae, a soilborne fungal pathogen and a widely distributed fungal pathogen, colonizes vascular tissue and causes vascular discoloration in roots and stems, leaf wilting, and death of susceptible plant hosts. It causes billions of dollars in annual crop losses all over the world. The study focused on the proteomic and metabalomic of V. dahliae interactions (incompatible with Beefsteak and compatible with Early Pak tomato cultivars). Based on our findings, PAL and enzymes involved defense-related secondary metabolism and the strengthening of cell walls is likely critical to confer resistance to race 1 of V. dahliae in tomato.
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Affiliation(s)
- Xiaoping Hu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling 712100, China
| | | | | | - Steven J Klosterman
- United States Department of Agriculture, Agricultural Research Service (USDA-ARS), Salinas, CA 93905, USA
| | - Christopher M Wallis
- USDA-ARS San Joaquin Valley Agricultural Sciences Center, Crop Diseases, Pests and Genetics Research Unit, 9611 S. Riverbend Ave, Parlier, CA 93648, USA
| | - Monica Britton
- Genome Center and Bioinformatics Core Facility, University of California, Davis, CA 95616, USA
| | - Blythe Durbin-Johnson
- Genome Center and Bioinformatics Core Facility, University of California, Davis, CA 95616, USA
| | - Brett Phinney
- Genome Center and Bioinformatics Core Facility, University of California, Davis, CA 95616, USA
| | - Michelle Salemi
- Genome Center and Bioinformatics Core Facility, University of California, Davis, CA 95616, USA
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Super-Resolution Microscopy of Phloem Proteins. Methods Mol Biol 2019. [PMID: 31197788 DOI: 10.1007/978-1-4939-9562-2_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Super-resolution microscopy bridges the gap between light and electron microscopy and gives new opportunities for the study of proteins that contribute to phloem function. The established super-resolution techniques are derived from fluorescence microscopy and depend on fluorescent dyes, proteins tagged with GFP variants or fluorochrome-decorated antibodies. Compared with confocal microscopy they improve the resolution between 2.5 and 10 times and, thus, allow a much more precise (co-) localization of membranes, plasmodesmata, and structural proteins. However, they are limited to thin tissue slices rather than intact plant organs and can only show immobilized or only slowly moving targets. Accordingly, the first super-resolution micrographs of the phloem were recorded from fixed tissue which was sectioned using a vibratome or microtome. As with transmission electron microscopy, preparation of phloem tissue for super-resolution microscopy is challenged by the sudden pressures release when dissecting the functional tissue (see Chapter 2 ).This chapter describes a protocol for investigation of proteins in the plasma membranes of sieve elements and companion cells. It illustrates how high-resolution fluorescence imaging can provide information that could not be obtained with confocal or electron microscopy. Further, a brief introduction outlines the theoretical background of super-resolution techniques suitable for phloem imaging and summarizes the findings of the first available super-resolution studies on the phloem. The protocol focusses on the crucial steps for super-resolution microscopy of immunolocalized phloem proteins, adjusted to the use of three-dimensional structured illumination microscopy (3D-SIM).
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Badawi MA, Agharbaoui Z, Zayed M, Li Q, Byrns B, Zou J, Fowler DB, Danyluk J, Sarhan F. Genome-Wide Identification and Characterization of the Wheat Remorin ( TaREM) Family during Cold Acclimation. THE PLANT GENOME 2019; 12:180040. [PMID: 31290927 DOI: 10.3835/plantgenome2018.06.0040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Remorins (REMs) are plant-specific proteins that play an essential role in plant-microbe interactions. However, their roles in vernalization and abiotic stress responses remain speculative. Most remorins have a variable proline-rich -half and a more conserved -half that is predicted to form coils. A search of the wheat ( L.) database revealed the existence of 20 different genes, which we classified into six groups on the basis of whether they shared a common phylogenetic and structural origin. Analysis of the physical genomic distributions demonstrated that genes are dispersed in the wheat genome and have one to seven introns. Promoter analysis of genes revealed the presence of putative -elements related to diverse functions like development, hormonal regulation, and biotic and abiotic stress responsiveness. Expression levels of genes were measured in plants grown under field and controlled conditions and in response to hormone treatment. Our analyses revealed that 12 members of the REM family are regulated during cold acclimation in wheat in four different tissues (roots, crowns, stems, and leaves), with the highest expression in roots. Differential gene expression was found between wheat cultivars with contrasting degrees of cold tolerance, suggesting the implication of genes in cold response and tolerance. Additionally, eight genes were induced in response to abscisic acid and methyl jasmonate treatment. This genome-wide analysis of genes provides valuable resources for functional analysis aimed at understanding their role in stress adaptation.
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Ahmed N, Darshanee HLC, Khan IA, Zhang ZF, Liu TX. Host Selection Behavior of the Green Peach Aphid, Myzus persicae, in Response to Volatile Organic Compounds and Nitrogen Contents of Cabbage Cultivars. FRONTIERS IN PLANT SCIENCE 2019; 10:79. [PMID: 30930910 PMCID: PMC6424066 DOI: 10.3389/fpls.2019.00079] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 01/17/2019] [Indexed: 05/22/2023]
Abstract
Plants emit volatile organic compounds (VOCs) in response to herbivore attack. VOCs emitted from the Chinese cabbage cultivars in response to the damage by the green peach aphid, Myzus persicae, were unknown. Using a solid-phase microextraction-based headspace collection method, we investigated and compared the emissions of VOCs from seven Chinese cabbage cultivars (Qibao, Qingan 80, Lvlong, Yuanbao, Qingan 70, Jinlv, and Lvqiu 66) in response to M. persicae attack. Our results showed that the VOCs emitted from the cultivars Qingan 80 and Yuanbao differed significantly from the other cultivars in response to the attraction of wingless M. persicae. Most importantly, out of the 27 detected compounds, α-caryophyllene was detected only in Qingan 80 and Qibao, but not in the other five cultivars. Among the compounds detected, 2 monoterpene and 12 terpenes were predominant in all cabbage cultivars. Furthermore, the wingless M. persicae showed preference to Qingan 80 while it had the highest nitrogen content among the tested cultivars. Moreover, we found a remarkable relationship among M. persicae attraction, plant nitrogen content, and total volatile emissions. Nitrogen content of the plants has a significant impact on volatile emission and preference behavior of M. persicae. Our results indicate that the wingless M. persicae were efficient in their interspecific host selection with an ability to distinguish plant cultivar differences by leaf nitrogen content. This study will be helpful in understanding aphid host selection, and sets a stage to further study the attractant-based integrated aphid management programs.
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Affiliation(s)
- Nazeer Ahmed
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, China
- Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, Northwest A&F University, Yangling, China
- Department of Agriculture, University of Swabi, Swabi, Pakistan
| | - Hewa Lunuwilage Chamila Darshanee
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, China
- Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, Northwest A&F University, Yangling, China
- Graduate Research School, University of Southern Queensland, Toowoomba, QLD, Australia
| | - Imtiaz Ali Khan
- Department of Entomology, The University of Agriculture, Peshawar, Pakistan
| | - Zhan-Feng Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, China
- Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, Northwest A&F University, Yangling, China
| | - Tong-Xian Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, China
- Key Laboratory of Integrated Pest Management on the Loess Plateau of Ministry of Agriculture, Northwest A&F University, Yangling, China
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Tao K, Waletich JR, Wise H, Arredondo F, Tyler BM. Tethering of Multi-Vesicular Bodies and the Tonoplast to the Plasma Membrane in Plants. FRONTIERS IN PLANT SCIENCE 2019; 10:636. [PMID: 31396242 PMCID: PMC6662526 DOI: 10.3389/fpls.2019.00636] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 04/26/2019] [Indexed: 05/05/2023]
Abstract
UNLABELLED Tethering of the plasma membrane (PM) and many organelles to the endoplasmic reticulum (ER) for communication and lipid exchange has been widely reported. However, despite growing interest in multi-vesicular bodies (MVBs) as possible sources of exosomes, tethering of MVBs to the PM has not been reported. Here we show that MVBs and the vacuolar membrane (tonoplast) could be tethered to the PM (PM-MVB/TP tethering) by artificial protein fusions or bimolecular fluorescence complementation (BiFC) complexes that contain a peripheral membrane protein that binds the PM and also a protein that binds MVBs or the tonoplast. PM-binding proteins capable of participating in PM-MVB/TP tethering included StRem1.3, BIK1, PBS1, CPK21, and the PtdIns(4)-binding proteins FAPP1 and Osh2. MVB/TP-binding proteins capable of participating in tethering included ARA6, ARA7, RHA1, RABG3f, and the PtdIns(3)P-binding proteins Vam7p and Hrs-2xFYVE. BiFC complexes or protein fusions capable of producing PM-MVB/TP tethering were visualized as large well-defined patches of fluorescence on the PM that could displace PM proteins such as AtFlotillin1 and also could displace cytoplasmic proteins such as soluble GFP. Furthermore, we identified paralogous ubiquitin E3 ligase proteins, SAUL1 (AtPUB44), and AtPUB43 that could produce PM-MVB/TP tethering. SAUL1 and AtPUB43 could produce tethering in uninfected tissue when paired with MVB-binding proteins or when their E3 ligase domain was deleted. When Nicotiana benthamiana leaf tissue was infected with Phytophthora capsici, full length SAUL1 and AtPUB43 localized in membrane patches consistent with PM-MVB/TP tethering. Our findings define new tools for studying PM-MVB/TP tethering and its possible role in plant defense. SIGNIFICANCE STATEMENT Although not previously observed, the tethering of multi-vesicular bodies to the plasma membrane is of interest due to the potential role of this process in producing exosomes in plants. Here we describe tools for observing and manipulating the tethering of multi-vesicular bodies and the tonoplast to the plant plasma membrane, and describe two plant proteins that may naturally regulate this process during infection.
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Affiliation(s)
- Kai Tao
- Molecular and Cellular Biology Program, Oregon State University, Corvallis, OR, United States
- Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR, United States
| | - Justin R. Waletich
- Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR, United States
| | - Hua Wise
- Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR, United States
| | - Felipe Arredondo
- Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR, United States
| | - Brett M. Tyler
- Molecular and Cellular Biology Program, Oregon State University, Corvallis, OR, United States
- Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR, United States
- Center for Genome Research and Biocomputing, Oregon State University, Corvallis, OR, United States
- *Correspondence: Brett M. Tyler
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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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Cai J, Qin G, Chen T, Tian S. The mode of action of remorin1 in regulating fruit ripening at transcriptional and post-transcriptional levels. THE NEW PHYTOLOGIST 2018; 219:1406-1420. [PMID: 29978907 DOI: 10.1111/nph.15264] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 05/08/2018] [Indexed: 05/24/2023]
Abstract
Remorins are plant-specific and plasma membrane-associated proteins that display a variety of functions in plant growth, development, biotic and abiotic stresses, and signal transduction. However, little information is available for understanding their role in fruit ripening. Here, remorin 1 (SlREM1) is cloned from tomato and its localization is examined by co-localization analysis and immunoblotting. Functions of SlREM1 in fruit ripening are characterized based on gene expression, co-immunoprecipitation coupled with mass spectroscopy and split luciferase complementation imaging assays in SlREM1 overexpression and RNA interference (RNAi) lines. The results indicate that SlREM1 is localized at the plasma membrane. Overexpression of SlREM1 in tomato stimulates fruit ripening with an increase in ethylene production and lycopene accumulation as compared to the wild-type. Consistently, these genes involved in ethylene and lycopene biosynthesis and ripening regulators also are upregulated in SlREM1 overexpression lines. SlREM1 can interact with ethylene biosynthesis proteins SAM1, ACO1 and ACS2 and is degraded by ubiquitin-mediated proteolysis. Our findings reveal that SlREM1 serves as a positive regulator of fruit ripening and provide novel cues for understanding of the molecular regulation network of fruit ripening.
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Affiliation(s)
- Jianghua Cai
- Key Laboratory of Plant Resources, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Guozheng Qin
- Key Laboratory of Plant Resources, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- Key Laboratory of Post-Harvest Handing of Fruits, Ministry of Agriculture, Beijing, 100093, China
| | - Tong Chen
- Key Laboratory of Plant Resources, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- Key Laboratory of Post-Harvest Handing of Fruits, Ministry of Agriculture, Beijing, 100093, China
| | - Shiping Tian
- Key Laboratory of Plant Resources, Institute of Botany, The Chinese Academy of Sciences, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Key Laboratory of Post-Harvest Handing of Fruits, Ministry of Agriculture, Beijing, 100093, China
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Cheng L, Wang Y, Liu Y, Zhang Q, Gao H, Zhang F. Comparative proteomics illustrates the molecular mechanism of potato (Solanum tuberosum L.) tuberization inhibited by exogenous gibberellins in vitro. PHYSIOLOGIA PLANTARUM 2018; 163:103-123. [PMID: 29135031 DOI: 10.1111/ppl.12670] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Revised: 10/31/2017] [Accepted: 11/08/2017] [Indexed: 05/24/2023]
Abstract
Among the multiple environmental signals and hormonal factors regulating potato tuberization, gibberellins (GAs) are important components of the signaling pathways in these processes. To understand the GAs-signaling response mechanism of potato tuberization, a comparative proteomics approach was applied to analyze proteome change of potato tuberization in vitro subjected to a range of exogenous GA3 treatments (0, 0.01, 0.1 and 1.0 μM) using two-dimensional gel electrophoresis. Quantitative image analyses showed that a total of 37 protein spots have their abundance significantly altered more than 2-fold. Among these proteins, 13 proteins were up-regulated, 13 proteins were down-regulated, one protein was absent and 10 proteins were induced after treatment by exogenous GA3 . The MALDI-TOF/TOF MS analyses led to the identification of differentially abundant proteins that are mainly involved in bioenergy and metabolism, storage, signaling, cell defense and rescue, transcription, chaperones, transport. Furthermore, the comparative analysis of GA3 -responsive proteome allowed for general elucidation of underlying molecular mechanisms of potato tuberization inhibited by exogenous GA3 . Most of these cellular processes were not conducive to the transition from stolon elongation to tuber formation, including a blockage of starch and storage protein accumulation, the accelerated carbohydrate catabolism, a blockage of JA biosynthesis but an elevated endogenous GAs level, the amplification of GA3 signal transduction by other signaling pathways, and the regulation of cellular RNA metabolism for controlling tuberization. Our results firstly integrated physiology and proteome data to provide new insights into GA3 -signaling response mechanisms of potato tuberization in vitro.
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Affiliation(s)
- Lixiang Cheng
- College of Agronomy, Gansu Provincial Key Laboratory of Aridland Crop Science, Gansu Key Laboratory of Crop Improvement & Germplasm Enhancement, Gansu Agricultural University, Lanzhou, China
| | - Yuping Wang
- College of Agronomy, Gansu Provincial Key Laboratory of Aridland Crop Science, Gansu Key Laboratory of Crop Improvement & Germplasm Enhancement, Gansu Agricultural University, Lanzhou, China
| | - Yueshan Liu
- College of Agronomy, Gansu Provincial Key Laboratory of Aridland Crop Science, Gansu Key Laboratory of Crop Improvement & Germplasm Enhancement, Gansu Agricultural University, Lanzhou, China
| | - Qingquan Zhang
- College of Agronomy, Gansu Provincial Key Laboratory of Aridland Crop Science, Gansu Key Laboratory of Crop Improvement & Germplasm Enhancement, Gansu Agricultural University, Lanzhou, China
| | - Huihui Gao
- College of Agronomy, Gansu Provincial Key Laboratory of Aridland Crop Science, Gansu Key Laboratory of Crop Improvement & Germplasm Enhancement, Gansu Agricultural University, Lanzhou, China
| | - Feng Zhang
- College of Agronomy, Gansu Provincial Key Laboratory of Aridland Crop Science, Gansu Key Laboratory of Crop Improvement & Germplasm Enhancement, Gansu Agricultural University, Lanzhou, China
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou, China
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50
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Martinez D, Legrand A, Gronnier J, Decossas M, Gouguet P, Lambert O, Berbon M, Verron L, Grélard A, Germain V, Loquet A, Mongrand S, Habenstein B. Coiled-coil oligomerization controls localization of the plasma membrane REMORINs. J Struct Biol 2018; 206:12-19. [PMID: 29481850 DOI: 10.1016/j.jsb.2018.02.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Revised: 01/25/2018] [Accepted: 02/12/2018] [Indexed: 12/20/2022]
Abstract
REMORINs are nanodomain-organized proteins located in the plasma membrane and involved in cellular responses in plants. The dynamic assembly of the membrane nanodomains represents an essential tool of the versatile membrane barriers to control and modulate cellular functions. Nevertheless, the assembly mechanisms and protein organization strategies of nanodomains are poorly understood and many structural aspects are difficult to visualize. Using an ensemble of biophysical approaches, including solid-state nuclear magnetic resonance, cryo-electron microscopy and in vivo confocal imaging, we provide first insights on the role and the structural mechanisms of REMORIN trimerization. Our results suggest that the formation of REMORIN coiled-coil trimers is essential for membrane recruitment and promotes REMORIN assembly in vitro into long filaments by trimer-trimer interactions that might participate in nanoclustering into membrane domains in vivo.
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Affiliation(s)
- Denis Martinez
- Institute of Chemistry & Biology of Membranes & Nanoobjects (UMR5248 CBMN), IECB, CNRS, Universite Bordeaux, Institut Polytechnique Bordeaux, All. Geoffroy Saint-Hilaire, 33600 Pessac, France
| | - Anthony Legrand
- Institute of Chemistry & Biology of Membranes & Nanoobjects (UMR5248 CBMN), IECB, CNRS, Universite Bordeaux, Institut Polytechnique Bordeaux, All. Geoffroy Saint-Hilaire, 33600 Pessac, France
| | - Julien Gronnier
- Laboratoire de Biogènese Membranaire - UMR 5200 - CNRS, Université de Bordeaux, 71 Avenue Edouard Bourlaux, 33883 Villenave d'Ornon Cédex, France
| | - Marion Decossas
- Institute of Chemistry & Biology of Membranes & Nanoobjects (UMR5248 CBMN), CNRS, Universite Bordeaux, Institut Polytechnique Bordeaux, 14 All. Geoffroy Saint-Hilaire, 33600 Pessac, France
| | - Paul Gouguet
- Laboratoire de Biogènese Membranaire - UMR 5200 - CNRS, Université de Bordeaux, 71 Avenue Edouard Bourlaux, 33883 Villenave d'Ornon Cédex, France
| | - Olivier Lambert
- Institute of Chemistry & Biology of Membranes & Nanoobjects (UMR5248 CBMN), CNRS, Universite Bordeaux, Institut Polytechnique Bordeaux, 14 All. Geoffroy Saint-Hilaire, 33600 Pessac, France
| | - Mélanie Berbon
- Institute of Chemistry & Biology of Membranes & Nanoobjects (UMR5248 CBMN), IECB, CNRS, Universite Bordeaux, Institut Polytechnique Bordeaux, All. Geoffroy Saint-Hilaire, 33600 Pessac, France
| | - Loris Verron
- Institute of Chemistry & Biology of Membranes & Nanoobjects (UMR5248 CBMN), IECB, CNRS, Universite Bordeaux, Institut Polytechnique Bordeaux, All. Geoffroy Saint-Hilaire, 33600 Pessac, France
| | - Axelle Grélard
- Institute of Chemistry & Biology of Membranes & Nanoobjects (UMR5248 CBMN), IECB, CNRS, Universite Bordeaux, Institut Polytechnique Bordeaux, All. Geoffroy Saint-Hilaire, 33600 Pessac, France
| | - Veronique Germain
- Laboratoire de Biogènese Membranaire - UMR 5200 - CNRS, Université de Bordeaux, 71 Avenue Edouard Bourlaux, 33883 Villenave d'Ornon Cédex, France
| | - Antoine Loquet
- Institute of Chemistry & Biology of Membranes & Nanoobjects (UMR5248 CBMN), IECB, CNRS, Universite Bordeaux, Institut Polytechnique Bordeaux, All. Geoffroy Saint-Hilaire, 33600 Pessac, France.
| | - Sébastien Mongrand
- Laboratoire de Biogènese Membranaire - UMR 5200 - CNRS, Université de Bordeaux, 71 Avenue Edouard Bourlaux, 33883 Villenave d'Ornon Cédex, France.
| | - Birgit Habenstein
- Institute of Chemistry & Biology of Membranes & Nanoobjects (UMR5248 CBMN), IECB, CNRS, Universite Bordeaux, Institut Polytechnique Bordeaux, All. Geoffroy Saint-Hilaire, 33600 Pessac, France.
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