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Cui L, Sun M, Zhang L, Zhu H, Kong Q, Dong L, Liu X, Zeng X, Sun Y, Zhang H, Duan L, Li W, Zou C, Zhang Z, Cai W, Ming Y, Lübberstedt T, Liu H, Yang X, Li X. Quantitative trait locus analysis of gray leaf spot resistance in the maize IBM Syn10 DH population. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2024; 137:183. [PMID: 39002016 DOI: 10.1007/s00122-024-04694-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 07/04/2024] [Indexed: 07/15/2024]
Abstract
KEY MESSAGE The exploration and dissection of a set of QTLs and candidate genes for gray leaf spot disease resistance using two fully assembled parental genomes may help expedite maize resistance breeding. The fungal disease of maize known as gray leaf spot (GLS), caused by Cercospora zeae-maydis and Cercospora zeina, is a significant concern in China, Southern Africa, and the USA. Resistance to GLS is governed by multiple genes with an additive effect and is influenced by both genotype and environment. The most effective way to reduce the cost of production is to develop resistant hybrids. In this study, we utilized the IBM Syn 10 Doubled Haploid (IBM Syn10 DH) population to identify quantitative trait loci (QTLs) associated with resistance to gray leaf spot (GLS) in multiple locations. Analysis of seven distinct environments revealed a total of 58 QTLs, 49 of which formed 12 discrete clusters distributed across chromosomes 1, 2, 3, 4, 8 and 10. By comparing these findings with published research, we identified colocalized QTLs or GWAS loci within eleven clustering intervals. By integrating transcriptome data with genomic structural variations between parental individuals, we identified a total of 110 genes that exhibit both robust disparities in gene expression and structural alterations. Further analysis revealed 19 potential candidate genes encoding conserved resistance gene domains, including putative leucine-rich repeat receptors, NLP transcription factors, fucosyltransferases, and putative xyloglucan galactosyltransferases. Our results provide a valuable resource and linked loci for GLS marker resistance selection breeding in maize.
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Affiliation(s)
- Lina Cui
- Institute of Plant Protection, Sichuan Academy of Agricultural Sciences, Chengdu, 610066, China
- Key Laboratory of Integrated Pest Management on Crops in Southwest China, Ministry of Agriculture, Chengdu, 610066, China
| | - Mingfei Sun
- State Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China
| | - Lin Zhang
- Department of Agronomy, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Hongjie Zhu
- State Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China
| | - Qianqian Kong
- School of Agriculture, Shenzhen Campus of Sun Yat-Sen University, Sun Yat-Sen University, Shenzhen, 518107, China
| | - Ling Dong
- Department of Agronomy, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Xianjun Liu
- Department of Agronomy, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Xing Zeng
- Department of Agronomy, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Yanjie Sun
- Suihua Branch, Heilongjiang Academy of Agricultural Sciences, Suihua, 152052, China
| | - Haiyan Zhang
- Institute of Plant Protection, Sichuan Academy of Agricultural Sciences, Chengdu, 610066, China
- Key Laboratory of Integrated Pest Management on Crops in Southwest China, Ministry of Agriculture, Chengdu, 610066, China
| | - Luyao Duan
- Institute of Plant Protection, Sichuan Academy of Agricultural Sciences, Chengdu, 610066, China
- Key Laboratory of Integrated Pest Management on Crops in Southwest China, Ministry of Agriculture, Chengdu, 610066, China
| | - Wenyi Li
- Institute of Plant Protection, Sichuan Academy of Agricultural Sciences, Chengdu, 610066, China
- Key Laboratory of Integrated Pest Management on Crops in Southwest China, Ministry of Agriculture, Chengdu, 610066, China
| | - Chengjia Zou
- Institute of Plant Protection, Sichuan Academy of Agricultural Sciences, Chengdu, 610066, China
- Key Laboratory of Integrated Pest Management on Crops in Southwest China, Ministry of Agriculture, Chengdu, 610066, China
| | - Zhenyu Zhang
- Institute of Plant Protection, Sichuan Academy of Agricultural Sciences, Chengdu, 610066, China
- Key Laboratory of Integrated Pest Management on Crops in Southwest China, Ministry of Agriculture, Chengdu, 610066, China
| | - WeiLi Cai
- Institute of Plant Protection, Sichuan Academy of Agricultural Sciences, Chengdu, 610066, China
- Key Laboratory of Integrated Pest Management on Crops in Southwest China, Ministry of Agriculture, Chengdu, 610066, China
| | - Yulin Ming
- Liangshan Seed Management Station, Xichang, 615000, China
| | | | - Hongjun Liu
- State Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China
| | - Xuerong Yang
- State Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China.
| | - Xiao Li
- Institute of Plant Protection, Sichuan Academy of Agricultural Sciences, Chengdu, 610066, China.
- Key Laboratory of Integrated Pest Management on Crops in Southwest China, Ministry of Agriculture, Chengdu, 610066, China.
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Zhang Y, Yang Z, Yang Y, Han A, Rehneke L, Ding L, Wei Y, Liu Z, Meng Y, Schäfer P, Shan W. A symbiont fungal effector relocalizes a plastidic oxidoreductase to nuclei to induce resistance to pathogens and salt stress. Curr Biol 2024; 34:2957-2971.e8. [PMID: 38917798 DOI: 10.1016/j.cub.2024.05.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 04/24/2024] [Accepted: 05/29/2024] [Indexed: 06/27/2024]
Abstract
The root endophytic fungus Serendipita indica establishes beneficial symbioses with a broad spectrum of plants and enhances host resilience against biotic and abiotic stresses. However, little is known about the mechanisms underlying S. indica-mediated plant protection. Here, we report S. indica effector (SIE) 141 and its host target CDSP32, a conserved thioredoxin-like protein, and underlying mechanisms for enhancing pathogen resistance and abiotic salt tolerance in Arabidopsis thaliana. SIE141 binding interfered with canonical targeting of CDSP32 to chloroplasts, leading to its re-location into the plant nucleus. This nuclear translocation is essential for both their interaction and resistance function. Furthermore, SIE141 enhanced oxidoreductase activity of CDSP32, leading to CDSP32-mediated monomerization and activation of NON-EXPRESSOR OF PATHOGENESIS-RELATED 1 (NPR1), a key regulator of systemic resistance. Our findings provide functional insights on how S. indica transfers well-known beneficial effects to host plants and indicate CDSP32 as a genetic resource to improve plant resilience to abiotic and biotic stresses.
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Affiliation(s)
- Yingqi Zhang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Ziran Yang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yang Yang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China; State Key Laboratory for Crop Stress Resistance and High-Efficiency Production and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Aiping Han
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Laura Rehneke
- Institute of Phytopathology, Land Use and Nutrition, Research Centre for BioSystems, Justus Liebig University, 35392 Giessen, Germany
| | - Liwen Ding
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yushu Wei
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zeming Liu
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yuling Meng
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Patrick Schäfer
- Institute of Phytopathology, Land Use and Nutrition, Research Centre for BioSystems, Justus Liebig University, 35392 Giessen, Germany
| | - Weixing Shan
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production and College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China; State Key Laboratory for Crop Stress Resistance and High-Efficiency Production and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China.
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Patel J, Allen TW, Buckley B, Chen P, Clubb M, Mozzoni LA, Orazaly M, Florez L, Moseley D, Rupe JC, Shrestha BK, Price PP, Ward BM, Koebernick J. Deciphering genetic factors contributing to enhanced resistance against Cercospora leaf blight in soybean ( Glycine max L.) using GWAS analysis. Front Genet 2024; 15:1377223. [PMID: 38798696 PMCID: PMC11116733 DOI: 10.3389/fgene.2024.1377223] [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: 01/27/2024] [Accepted: 04/24/2024] [Indexed: 05/29/2024] Open
Abstract
Cercospora leaf blight (CLB), caused by Cercospora cf. flagellaris, C. kikuchii, and C. cf. sigesbeckiae, is a significant soybean [Glycine max (L.) Merr.] disease in regions with hot and humid conditions causing yield loss in the United States and Canada. There is limited information regarding resistant soybean cultivars, and there have been marginal efforts to identify the genomic regions underlying resistance to CLB. A Genome-Wide Association Study was conducted using a diverse panel of 460 soybean accessions from maturity groups III to VII to identify the genomic regions associated to the CLB disease. These accessions were evaluated for CLB in different regions of the southeastern United States over 3 years. In total, the study identified 99 Single Nucleotide Polymorphism (SNPs) associated with the disease severity and 85 SNPs associated with disease incidence. Across multiple environments, 47 disease severity SNPs and 23 incidence SNPs were common. Candidate genes within 10 kb of these SNPs were involved in biotic and abiotic stress pathways. This information will contribute to the development of resistant soybean germplasm. Further research is warranted to study the effect of pyramiding desirable genomic regions and investigate the role of identified genes in soybean CLB resistance.
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Affiliation(s)
- Jinesh Patel
- Department of Crop, Soil, and Environmental Sciences, Auburn University, Auburn, AL, United States
| | - Tom W. Allen
- Delta Research and Extension Center, Mississippi State University, Stoneville, MS, United States
| | - Blair Buckley
- LSU AgCenter, Red River Research Station, Bossier City, LA, United States
| | - Pengyin Chen
- Fisher Delta Research Center, MO University of Missouri, Portageville, MO, United States
| | - Michael Clubb
- Fisher Delta Research Center, MO University of Missouri, Portageville, MO, United States
| | - Leandro A. Mozzoni
- Department of Crop, Soil, and Environmental Science, University of Arkansas, Fayetteville, AR, United States
| | - Moldir Orazaly
- Department of Crop, Soil, and Environmental Science, University of Arkansas, Fayetteville, AR, United States
| | - Liliana Florez
- Department of Crop, Soil, and Environmental Science, University of Arkansas, Fayetteville, AR, United States
| | - David Moseley
- Department of Crop, Soil, and Environmental Science, University of Arkansas, Fayetteville, AR, United States
| | - John C. Rupe
- Department of Plant Pathology, University of Arkansas, Fayetteville, AR, United States
| | - Bishnu K. Shrestha
- LSU AgCenter, Macon Ridge Research Station, Winnsboro, LA, United States
| | - Paul P. Price
- LSU AgCenter, Macon Ridge Research Station, Winnsboro, LA, United States
| | - Brian M. Ward
- Department of Plant Pathology and Crop Physiology, LSU AgCenter, Baton Rouge, LA, United States
| | - Jenny Koebernick
- Department of Crop, Soil, and Environmental Sciences, Auburn University, Auburn, AL, United States
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Testi S, Kuhn ML, Allasia V, Auroy P, Kong F, Peltier G, Pagnotta S, Cazareth J, Keller H, Panabières F. The Phytophthora parasitica effector AVH195 interacts with ATG8, attenuates host autophagy, and promotes biotrophic infection. BMC Biol 2024; 22:100. [PMID: 38679707 PMCID: PMC11057187 DOI: 10.1186/s12915-024-01899-w] [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: 01/05/2024] [Accepted: 04/22/2024] [Indexed: 05/01/2024] Open
Abstract
BACKGROUND Plant pathogens secrete effector proteins into host cells to suppress immune responses and manipulate fundamental cellular processes. One of these processes is autophagy, an essential recycling mechanism in eukaryotic cells that coordinates the turnover of cellular components and contributes to the decision on cell death or survival. RESULTS We report the characterization of AVH195, an effector from the broad-spectrum oomycete plant pathogen, Phytophthora parasitica. We show that P. parasitica expresses AVH195 during the biotrophic phase of plant infection, i.e., the initial phase in which host cells are maintained alive. In tobacco, the effector prevents the initiation of cell death, which is caused by two pathogen-derived effectors and the proapoptotic BAX protein. AVH195 associates with the plant vacuolar membrane system and interacts with Autophagy-related protein 8 (ATG8) isoforms/paralogs. When expressed in cells from the green alga, Chlamydomonas reinhardtii, the effector delays vacuolar fusion and cargo turnover upon stimulation of autophagy, but does not affect algal viability. In Arabidopsis thaliana, AVH195 delays the turnover of ATG8 from endomembranes and promotes plant susceptibility to P. parasitica and the obligate biotrophic oomycete pathogen Hyaloperonospora arabidopsidis. CONCLUSIONS Taken together, our observations suggest that AVH195 targets ATG8 to attenuate autophagy and prevent associated host cell death, thereby favoring biotrophy during the early stages of the infection process.
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Affiliation(s)
- Serena Testi
- Université Côte d'Azur, INRAE, CNRS, Institut Sophia Agrobiotech, 06903, Sophia Antipolis, France
- Present Address: Station Biologique de Roscoff, UMR8227 LBI2M, CNRS-Sorbonne Unversité, 29680, Roscoff, France
| | - Marie-Line Kuhn
- Université Côte d'Azur, INRAE, CNRS, Institut Sophia Agrobiotech, 06903, Sophia Antipolis, France
| | - Valérie Allasia
- Université Côte d'Azur, INRAE, CNRS, Institut Sophia Agrobiotech, 06903, Sophia Antipolis, France
| | - Pascaline Auroy
- Aix Marseille Université, CEA, CNRS, Institut de Biosciences et Biotechnologies Aix-Marseille, CEA Cadarache, 13108, Saint Paul-Lez-Durance, France
| | - Fantao Kong
- Aix Marseille Université, CEA, CNRS, Institut de Biosciences et Biotechnologies Aix-Marseille, CEA Cadarache, 13108, Saint Paul-Lez-Durance, France
- Present address: School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Gilles Peltier
- Aix Marseille Université, CEA, CNRS, Institut de Biosciences et Biotechnologies Aix-Marseille, CEA Cadarache, 13108, Saint Paul-Lez-Durance, France
| | - Sophie Pagnotta
- Université Côte d'Azur, Centre Commun de Microscopie Appliquée, 06108, Nice, France
| | - Julie Cazareth
- Université Côte d'Azur, CNRS, Institut de Pharmacologie Moléculaire et Cellulaire, 06903, Sophia Antipolis, France
| | - Harald Keller
- Université Côte d'Azur, INRAE, CNRS, Institut Sophia Agrobiotech, 06903, Sophia Antipolis, France.
| | - Franck Panabières
- Université Côte d'Azur, INRAE, CNRS, Institut Sophia Agrobiotech, 06903, Sophia Antipolis, France
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Li Y, Hu Y, Jiang Y, Zhou Q, He Y, He J, Chen X, Chen X, Jiang B, Hao M, Ning S, Yuan Z, Zhang J, Xia C, Wu B, Feng L, Zhang L, Liu D, Huang L. Identification and fine-mapping of QYrAS286-2BL conferring adult-plant resistance to stripe rust in cultivated emmer wheat. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2023; 137:5. [PMID: 38091074 DOI: 10.1007/s00122-023-04505-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 11/15/2023] [Indexed: 12/18/2023]
Abstract
KEY MESSAGE A novel major adult-plant stripe rust resistance QTL derived from cultivated emmer wheat was mapped to a 123.6-kb region on wheat chromosome 2BL. Stripe rust, caused by the fungal pathogen Puccinia striiformis f. sp. tritici (Pst), is one of the most devastating diseases of wheat. Identification of new sources of resistance and their utilization in breeding programs is the effectively control strategy. The objective of this study was to identify and genetically characterize the stripe rust resistance derived from the cultivated emmer accession AS286. A recombinant inbred line population, developed from a cross between the susceptible durum wheat line langdon and AS286, was genotyped using the Wheat55K single nucleotide polymorphism array and evaluated in field conditions with a mixture of the prevalent Chinese Pst races (CYR32, CYR33, CYR34, Zhong4, and HY46) and in growth chamber with race CYR34. Three QTLs conferring resistance were mapped on chromosomes 1BS, 2BL, and 5BL, respectively. The QYrAS286-1BS and QYrAS286-2BL were stable with major effects, explaining 12.91% to 18.82% and 11.31% to 31.43% of phenotypic variation, respectively. QYrAS286-5BL was only detected based on growth chamber seedling data. RILs harboring both QYrAS286-1BS and QYrAS286-2BL showed high levels of stripe rust resistance equal to the parent AS286. The QYrAS286-2BL was only detected at the adult-plant stage, which is different from previously named Yr genes and inherited as a single gene. It was further mapped to a 123.6-kb region using KASP markers derived from SNPs identified by bulked segregant RNA sequencing (BSR-Seq). The identified loci enrich our stripe rust resistance gene pool, and the flanking markers developed here could be useful in marker-assisted selection for incorporating QYrAS286-2BL into wheat cultivars.
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Affiliation(s)
- Yuqin Li
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Yanling Hu
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Yun Jiang
- Biotechnology and Nuclear Technology Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, 610061, Sichuan, China
| | - Qiang Zhou
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, Sichuan, China
| | - Yu He
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Jingshu He
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Xuejiao Chen
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Xue Chen
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Bo Jiang
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Ming Hao
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Shunzong Ning
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Zhongwei Yuan
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Jinrui Zhang
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Chongjing Xia
- Wheat Research Institute, School of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, China
| | - Bihua Wu
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Lihua Feng
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Lianquan Zhang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.
| | - Dengcai Liu
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.
| | - Lin Huang
- Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.
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Kileeg Z, Haldar A, Khan H, Qamar A, Mott GA. Differential expansion and retention patterns of LRR-RLK genes across plant evolution. PLANT DIRECT 2023; 7:e556. [PMID: 38145254 PMCID: PMC10739070 DOI: 10.1002/pld3.556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 11/03/2023] [Accepted: 11/28/2023] [Indexed: 12/26/2023]
Abstract
To maximize overall fitness, plants must accurately respond to a host of growth, developmental, and environmental signals throughout their life. Many of these internal and external signals are perceived by the leucine-rich repeat receptor-like kinases, which play roles in regulating growth, development, and immunity. This largest family of receptor kinases in plants can be divided into subfamilies based on the conservation of the kinase domain, which demonstrates that shared evolutionary history often indicates shared molecular function. Here we investigate the evolutionary history of this family across the evolution of 112 plant species. We identify lineage-specific expansions of the malectin-domain containing subfamily LRR subfamily I primarily in the Brassicales and bryophytes. Most other plant lineages instead show a large expansion in LRR subfamily XII, which in Arabidopsis is known to contain key receptors in pathogen perception. This striking asymmetric expansion may reveal a dichotomy in the evolutionary history and adaptation strategies employed by plants. A greater understanding of the evolutionary pressures and adaptation strategies acting on members of this receptor family offers a way to improve functional predictions for orphan receptors and simplify the identification of novel stress-related receptors.
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Affiliation(s)
- Zachary Kileeg
- Department of Biological SciencesUniversity of Toronto ‐ ScarboroughTorontoCanada
- Department of Cell and Systems BiologyUniversity of TorontoTorontoCanada
| | - Aparna Haldar
- Department of Biological SciencesUniversity of Toronto ‐ ScarboroughTorontoCanada
- Department of Cell and Systems BiologyUniversity of TorontoTorontoCanada
| | - Hasna Khan
- Department of Biological SciencesUniversity of Toronto ‐ ScarboroughTorontoCanada
- Department of Cell and Systems BiologyUniversity of TorontoTorontoCanada
| | - Arooj Qamar
- Department of Biological SciencesUniversity of Toronto ‐ ScarboroughTorontoCanada
| | - G. Adam Mott
- Department of Biological SciencesUniversity of Toronto ‐ ScarboroughTorontoCanada
- Department of Cell and Systems BiologyUniversity of TorontoTorontoCanada
- Centre for the Analysis of Genome Evolution & FunctionUniversity of TorontoTorontoCanada
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Xiong W, van Workum DJM, Berke L, Bakker LV, Schijlen E, Becker FFM, van de Geest H, Peters S, Michelmore R, van Treuren R, Jeuken M, Smit S, Schranz ME. Genome assembly and analysis of Lactuca virosa: implications for lettuce breeding. G3 (BETHESDA, MD.) 2023; 13:jkad204. [PMID: 37740775 PMCID: PMC10627274 DOI: 10.1093/g3journal/jkad204] [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: 05/26/2023] [Revised: 07/16/2023] [Accepted: 07/19/2023] [Indexed: 09/25/2023]
Abstract
Lettuce (Lactuca sativa L.) is a leafy vegetable crop with ongoing breeding efforts related to quality, resilience, and innovative production systems. To breed resilient and resistant lettuce in the future, valuable genetic variation found in close relatives could be further exploited. Lactuca virosa (2x = 2n = 18), a wild relative assigned to the tertiary lettuce gene pool, has a much larger genome (3.7 Gbp) than Lactuca sativa (2.5 Gbp). It has been used in interspecific crosses and is a donor to modern crisphead lettuce cultivars. Here, we present a de novo reference assembly of L. virosa with high continuity and complete gene space. This assembly facilitated comparisons to the genome of L. sativa and to that of the wild species L. saligna, a representative of the secondary lettuce gene pool. To assess the diversity in gene content, we classified the genes of the 3 Lactuca species as core, accessory, and unique. In addition, we identified 3 interspecific chromosomal inversions compared to L. sativa, which each may cause recombination suppression and thus hamper future introgression breeding. Using 3-way comparisons in both reference-based and reference-free manners, we show that the proliferation of long-terminal repeat elements has driven the genome expansion of L. virosa. Further, we performed a genome-wide comparison of immune genes, nucleotide-binding leucine-rich repeat, and receptor-like kinases among Lactuca spp. and indicated the evolutionary patterns and mechanisms behind their expansions. These genome analyses greatly facilitate the understanding of genetic variation in L. virosa, which is beneficial for the breeding of improved lettuce varieties.
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Affiliation(s)
- Wei Xiong
- Biosystematics Group, Wageningen University & Research, P.O. Box 16, Wageningen, 6700 AA, The Netherlands
| | - Dirk-Jan M van Workum
- Bioinformatics Group, Wageningen University & Research, P.O. Box 633, Wageningen, 6700 AP, The Netherlands
| | - Lidija Berke
- Biosystematics Group, Wageningen University & Research, P.O. Box 16, Wageningen, 6700 AA, The Netherlands
| | - Linda V Bakker
- Bioscience, Wageningen University & Research, P.O. Box 16, Wageningen, 6700 AA, The Netherlands
| | - Elio Schijlen
- Bioscience, Wageningen University & Research, P.O. Box 16, Wageningen, 6700 AA, The Netherlands
| | - Frank F M Becker
- Biosystematics Group, Wageningen University & Research, P.O. Box 16, Wageningen, 6700 AA, The Netherlands
- Laboratory of Genetics, Wageningen University & Research, P.O. Box 16, Wageningen, 6700 AA, The Netherlands
| | - Henri van de Geest
- Bioscience, Wageningen University & Research, P.O. Box 16, Wageningen, 6700 AA, The Netherlands
| | - Sander Peters
- Bioscience, Wageningen University & Research, P.O. Box 16, Wageningen, 6700 AA, The Netherlands
| | - Richard Michelmore
- The Genome Center, Genome & Biomedical Sciences Facility, University of California, Davis, 451 East Health Sciences Drive, Davis, CA 95616-8816, USA
| | - Rob van Treuren
- Centre for Genetic Resources, the Netherlands (CGN), Wageningen University & Research, P.O. Box 16, Wageningen, 6700 AA, The Netherlands
| | - Marieke Jeuken
- Plant Breeding Group, Wageningen University & Research, P.O. Box 386, Wageningen, 6700 AJ, The Netherlands
| | - Sandra Smit
- Bioinformatics Group, Wageningen University & Research, P.O. Box 633, Wageningen, 6700 AP, The Netherlands
| | - M Eric Schranz
- Biosystematics Group, Wageningen University & Research, P.O. Box 16, Wageningen, 6700 AA, The Netherlands
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8
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Patel S, Patel J, Bowen K, Koebernick J. Deciphering the genetic architecture of resistance to Corynespora cassiicola in soybean ( Glycine max L.) by integrating genome-wide association mapping and RNA-Seq analysis. FRONTIERS IN PLANT SCIENCE 2023; 14:1255763. [PMID: 37828935 PMCID: PMC10565807 DOI: 10.3389/fpls.2023.1255763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 09/04/2023] [Indexed: 10/14/2023]
Abstract
Target spot caused by Corynespora cassiicola is a problematic disease in tropical and subtropical soybean (Glycine max) growing regions. Although resistant soybean genotypes have been identified, the genetic mechanisms underlying target spot resistance has not yet been studied. To address this knowledge gap, this is the first genome-wide association study (GWAS) conducted using the SoySNP50K array on a panel of 246 soybean accessions, aiming to unravel the genetic architecture of resistance. The results revealed significant associations of 14 and 33 loci with resistance to LIM01 and SSTA C. cassiicola isolates, respectively, with six loci demonstrating consistent associations across both isolates. To identify potential candidate genes within GWAS-identified loci, dynamic transcriptome profiling was conducted through RNA-Seq analysis. The analysis involved comparing gene expression patterns between resistant and susceptible genotypes, utilizing leaf tissue collected at different time points after inoculation. Integrating results of GWAS and RNA-Seq analyses identified 238 differentially expressed genes within a 200 kb region encompassing significant quantitative trait loci (QTLs) for disease severity ratings. These genes were involved in defense response to pathogen, innate immune response, chitinase activity, histone H3-K9 methylation, salicylic acid mediated signaling pathway, kinase activity, and biosynthesis of flavonoid, jasmonic acid, phenylpropanoid, and wax. In addition, when combining results from this study with previous GWAS research, 11 colocalized regions associated with disease resistance were identified for biotic and abiotic stress. This finding provides valuable insight into the genetic resources that can be harnessed for future breeding programs aiming to enhance soybean resistance against target spot and other diseases simultaneously.
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Affiliation(s)
- Sejal Patel
- Department of Crop, Soil and Environmental Sciences, Auburn University, Auburn, AL, United States
| | - Jinesh Patel
- Department of Crop, Soil and Environmental Sciences, Auburn University, Auburn, AL, United States
| | - Kira Bowen
- Department of Entomology and Plant Pathology, Auburn University, Auburn, AL, United States
| | - Jenny Koebernick
- Department of Crop, Soil and Environmental Sciences, Auburn University, Auburn, AL, United States
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9
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Rachowka J, Anielska-Mazur A, Bucholc M, Stephenson K, Kulik A. SnRK2.10 kinase differentially modulates expression of hub WRKY transcription factors genes under salinity and oxidative stress in Arabidopsis thaliana. FRONTIERS IN PLANT SCIENCE 2023; 14:1135240. [PMID: 37621885 PMCID: PMC10445769 DOI: 10.3389/fpls.2023.1135240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 05/30/2023] [Indexed: 08/26/2023]
Abstract
In nature, all living organisms must continuously sense their surroundings and react to the occurring changes. In the cell, the information about these changes is transmitted to all cellular compartments, including the nucleus, by multiple phosphorylation cascades. Sucrose Non-Fermenting 1 Related Protein Kinases (SnRK2s) are plant-specific enzymes widely distributed across the plant kingdom and key players controlling abscisic acid (ABA)-dependent and ABA-independent signaling pathways in the plant response to osmotic stress and salinity. The main deleterious effects of salinity comprise water deficiency stress, disturbances in ion balance, and the accompanying appearance of oxidative stress. The reactive oxygen species (ROS) generated at the early stages of salt stress are involved in triggering intracellular signaling required for the fast stress response and modulation of gene expression. Here we established in Arabidopsis thaliana that salt stress or induction of ROS accumulation by treatment of plants with H2O2 or methyl viologen (MV) induces the expression of several genes encoding transcription factors (TFs) from the WRKY DNA-Binding Protein (WRKY) family. Their induction by salinity was dependent on SnRK2.10, an ABA non-activated kinase, as it was strongly reduced in snrk2.10 mutants. The effect of ROS was clearly dependent on their source. Following the H2O2 treatment, SnRK2.10 was activated in wild-type (wt) plants and the induction of the WRKY TFs expression was only moderate and was enhanced in snrk2.10 lines. In contrast, MV did not activate SnRK2.10 and the WRKY induction was very strong and was similar in wt and snrk2.10 plants. A bioinformatic analysis indicated that the WRKY33, WRKY40, WRKY46, and WRKY75 transcription factors have a similar target range comprising numerous stress-responsive protein kinases. Our results indicate that the stress-related functioning of SnRK2.10 is fine-tuned by the source and intracellular distribution of ROS and the co-occurrence of other stress factors.
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Affiliation(s)
| | | | | | | | - Anna Kulik
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
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10
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Xiong W, Berke L, Michelmore R, van Workum DJM, Becker FFM, Schijlen E, Bakker LV, Peters S, van Treuren R, Jeuken M, Bouwmeester K, Schranz ME. The genome of Lactuca saligna, a wild relative of lettuce, provides insight into non-host resistance to the downy mildew Bremia lactucae. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 115:108-126. [PMID: 36987839 DOI: 10.1111/tpj.16212] [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: 10/29/2022] [Revised: 02/20/2023] [Accepted: 02/27/2023] [Indexed: 06/19/2023]
Abstract
Lactuca saligna L. is a wild relative of cultivated lettuce (Lactuca sativa L.), with which it is partially interfertile. Hybrid progeny suffer from hybrid incompatibility (HI), resulting in reduced fertility and distorted transmission ratios. Lactuca saligna displays broad-spectrum resistance against lettuce downy mildew caused by Bremia lactucae Regel and is considered a non-host species. This phenomenon of resistance in L. saligna is called non-host resistance (NHR). One possible mechanism behind this NHR is through the plant-pathogen interaction triggered by pathogen recognition receptors, including nucleotide-binding leucine-rich repeat (NLR) proteins and receptor-like kinases (RLKs). We report a chromosome-level genome assembly of L. saligna (accession CGN05327), leading to the identification of two large paracentric inversions (>50 Mb) between L. saligna and L. sativa. Genome-wide searches delineated the major resistance clusters as regions enriched in NLRs and RLKs. Three of the enriched regions co-locate with previously identified NHR intervals. RNA-seq analysis of Bremia-infected lettuce identified several differentially expressed RLKs in NHR regions. Three tandem wall-associated kinase-encoding genes (WAKs) in the NHR8 interval display particularly high expression changes at an early stage of infection. We propose RLKs as strong candidates for determinants of the NHR phenotype of L. saligna.
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Affiliation(s)
- Wei Xiong
- Biosystematics Group, Wageningen University and Research, Wageningen, The Netherlands
| | - Lidija Berke
- Biosystematics Group, Wageningen University and Research, Wageningen, The Netherlands
| | - Richard Michelmore
- Genome Center and Department of Plant Sciences, University of California, Davis, CA, USA
| | | | - Frank F M Becker
- Biosystematics Group, Wageningen University and Research, Wageningen, The Netherlands
| | - Elio Schijlen
- Bioscience, Wageningen University and Research, Wageningen, The Netherlands
| | - Linda V Bakker
- Bioscience, Wageningen University and Research, Wageningen, The Netherlands
| | - Sander Peters
- Bioscience, Wageningen University and Research, Wageningen, The Netherlands
| | - Rob van Treuren
- Centre for Genetic Resources, The Netherlands (CGN), Wageningen University and Research, Wageningen, The Netherlands
| | - Marieke Jeuken
- Plant Breeding, Wageningen University and Research, Wageningen, The Netherlands
| | - Klaas Bouwmeester
- Biosystematics Group, Wageningen University and Research, Wageningen, The Netherlands
| | - M Eric Schranz
- Biosystematics Group, Wageningen University and Research, Wageningen, The Netherlands
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11
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Osman MEM, Osman RSH, Elmubarak SA, Dirar AI, Konozy EHE. Phoenix dactylifera (date palm; Arecaceae) putative lectin homologs: Genome-wide search, architecture analysis, and evolutionary relationship. Saudi J Biol Sci 2023; 30:103676. [PMID: 37213699 PMCID: PMC10197109 DOI: 10.1016/j.sjbs.2023.103676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 04/10/2023] [Accepted: 04/27/2023] [Indexed: 05/23/2023] Open
Abstract
The date palm, Phoenix dactylifera, is a vital crop in nations in the Middle East and North Africa. The date palm was thought to have outstanding traditional medicinal value because it was abundant in phytochemicals with diverse chemical structures. The date palm's ability to withstand harsh environments could be partly attributed to a class of proteins known as lectins, which are carbohydrate-binding proteins that can bind sugar moieties reversibly and without changing their chemical structures. After scanning the genome of P. dactylifera (GCF 009389715.1), this in silico study discovered 196 possible lectin homologs from 11 different families, some specific to plants. At the same time, others could also be found in other kingdoms of life. Their domain architectures and functional amino acid residues were investigated, and they yielded a 40% true-lectin with known conserved carbohydrate-binding residues. Further, their probable subcellular localization, physiochemical and phylogenetic analyses were also performed. Scanning all putative lectin homologs against the anticancer peptide (ACP) dataset found in the AntiCP2.0 webpage identified 26 genes with protein kinase receptors (Lec-KRs) belonging to 5 lectin families, which are reported to have at least one ACP motif. Our study offers the first account of Phoenix-lectins and their organization that can be used for further structural and functional analysis and investigating their potential as anticancer proteins.
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Affiliation(s)
| | | | - Sara A.A Elmubarak
- Department of Biotechnology, Africa City of Technology (ACT), Khartoum, Sudan
| | - Amina I. Dirar
- Medicinal, Aromatic Plants and Traditional Medicine Research Institute (MAPTRI), National Center for Research, Mek Nimr Street, Khartoum, Sudan
| | - Emadeldin Hassan E. Konozy
- Department of Biotechnology, Africa City of Technology (ACT), Khartoum, Sudan
- Pharmaceutical Research and Development, Centre Faculty of Pharmacy, Karary University, Omdurman, Khartoum State, Sudan
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12
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Oelmüller R, Tseng YH, Gandhi A. Signals and Their Perception for Remodelling, Adjustment and Repair of the Plant Cell Wall. Int J Mol Sci 2023; 24:ijms24087417. [PMID: 37108585 PMCID: PMC10139151 DOI: 10.3390/ijms24087417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/04/2023] [Accepted: 04/08/2023] [Indexed: 04/29/2023] Open
Abstract
The integrity of the cell wall is important for plant cells. Mechanical or chemical distortions, tension, pH changes in the apoplast, disturbance of the ion homeostasis, leakage of cell compounds into the apoplastic space or breakdown of cell wall polysaccharides activate cellular responses which often occur via plasma membrane-localized receptors. Breakdown products of the cell wall polysaccharides function as damage-associated molecular patterns and derive from cellulose (cello-oligomers), hemicelluloses (mainly xyloglucans and mixed-linkage glucans as well as glucuronoarabinoglucans in Poaceae) and pectins (oligogalacturonides). In addition, several types of channels participate in mechanosensing and convert physical into chemical signals. To establish a proper response, the cell has to integrate information about apoplastic alterations and disturbance of its wall with cell-internal programs which require modifications in the wall architecture due to growth, differentiation or cell division. We summarize recent progress in pattern recognition receptors for plant-derived oligosaccharides, with a focus on malectin domain-containing receptor kinases and their crosstalk with other perception systems and intracellular signaling events.
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Affiliation(s)
- Ralf Oelmüller
- Matthias Schleiden Institute of Genetics, Bioinformatics and Molecular Botany, Department of Plant Physiology, Friedrich-Schiller-University, 07743 Jena, Germany
| | - Yu-Heng Tseng
- Matthias Schleiden Institute of Genetics, Bioinformatics and Molecular Botany, Department of Plant Physiology, Friedrich-Schiller-University, 07743 Jena, Germany
| | - Akanksha Gandhi
- Matthias Schleiden Institute of Genetics, Bioinformatics and Molecular Botany, Department of Plant Physiology, Friedrich-Schiller-University, 07743 Jena, Germany
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13
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Kim HJ, Liu Y, Thyssen GN, Naoumkina M, Frelichowski J. Phenomics and transcriptomics analyses reveal deposition of suberin and lignin in the short fiber cell walls produced from a wild cotton species and two mutants. PLoS One 2023; 18:e0282799. [PMID: 36893139 PMCID: PMC9997941 DOI: 10.1371/journal.pone.0282799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 02/22/2023] [Indexed: 03/10/2023] Open
Abstract
Fiber length is one of the major properties determining the quality and commercial value of cotton. To understand the mechanisms regulating fiber length, genetic variations of cotton species and mutants producing short fibers have been compared with cultivated cottons generating long and normal fibers. However, their phenomic variation other than fiber length has not been well characterized. Therefore, we compared physical and chemical properties of the short fibers with the long fibers. Fiber characteristics were compared in two sets: 1) wild diploid Gossypium raimondii Ulbrich (short fibers) with cultivated diploid G. arboreum L and tetraploid G. hirsutum L. (long fibers); 2) G. hirsutum short fiber mutants, Ligon-lintless 1 (Li1) and 2 (Li2) with their near isogenic line (NIL), DP-5690 (long fibers). Chemical analyses showed that the short fibers commonly consisted of greater non-cellulosic components, including lignin and suberin, than the long fibers. Transcriptomic analyses also identified up-regulation of the genes related to suberin and lignin biosynthesis in the short fibers. Our results may provide insight on how high levels of suberin and lignin in cell walls can affect cotton fiber length. The approaches combining phenomic and transcriptomic analyses of multiple sets of cotton fibers sharing a common phenotype would facilitate identifying genes and common pathways that significantly influence cotton fiber properties.
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Affiliation(s)
- Hee Jin Kim
- USDA-ARS, Southern Regional Research Center, Cotton Fiber Bioscience Research Unit, New Orleans, LA, United States of America
- * E-mail:
| | - Yongliang Liu
- USDA-ARS, Southern Regional Research Center, Cotton Structure and Quality Research Unit, New Orleans, LA, United States of America
| | - Gregory N. Thyssen
- USDA-ARS, Southern Regional Research Center, Cotton Fiber Bioscience Research Unit, New Orleans, LA, United States of America
| | - Marina Naoumkina
- USDA-ARS, Southern Regional Research Center, Cotton Fiber Bioscience Research Unit, New Orleans, LA, United States of America
| | - James Frelichowski
- USDA-ARS-SPARC, Crop Germplasm Research Unit, College Station, TX, United States of America
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14
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Vuong UT, Iswanto ABB, Nguyen Q, Kang H, Lee J, Moon J, Kim SH. Engineering plant immune circuit: walking to the bright future with a novel toolbox. PLANT BIOTECHNOLOGY JOURNAL 2023; 21:17-45. [PMID: 36036862 PMCID: PMC9829404 DOI: 10.1111/pbi.13916] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 08/20/2022] [Accepted: 08/23/2022] [Indexed: 06/15/2023]
Abstract
Plant pathogens destroy crops and cause severe yield losses, leading to an insufficient food supply to sustain the human population. Apart from relying on natural plant immune systems to combat biological agents or waiting for the appropriate evolutionary steps to occur over time, researchers are currently seeking new breakthrough methods to boost disease resistance in plants through genetic engineering. Here, we summarize the past two decades of research in disease resistance engineering against an assortment of pathogens through modifying the plant immune components (internal and external) with several biotechnological techniques. We also discuss potential strategies and provide perspectives on engineering plant immune systems for enhanced pathogen resistance and plant fitness.
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Affiliation(s)
- Uyen Thi Vuong
- Division of Applied Life Science (BK21 Four Program), Plant Molecular Biology and Biotechnology Research CenterGyeongsang National UniversityJinjuRepublic of Korea
| | - Arya Bagus Boedi Iswanto
- Division of Applied Life Science (BK21 Four Program), Plant Molecular Biology and Biotechnology Research CenterGyeongsang National UniversityJinjuRepublic of Korea
| | - Quang‐Minh Nguyen
- Division of Applied Life Science (BK21 Four Program), Plant Molecular Biology and Biotechnology Research CenterGyeongsang National UniversityJinjuRepublic of Korea
| | - Hobin Kang
- Division of Applied Life Science (BK21 Four Program), Plant Molecular Biology and Biotechnology Research CenterGyeongsang National UniversityJinjuRepublic of Korea
| | - Jihyun Lee
- Division of Applied Life Science (BK21 Four Program), Plant Molecular Biology and Biotechnology Research CenterGyeongsang National UniversityJinjuRepublic of Korea
| | - Jiyun Moon
- Division of Applied Life Science (BK21 Four Program), Plant Molecular Biology and Biotechnology Research CenterGyeongsang National UniversityJinjuRepublic of Korea
| | - Sang Hee Kim
- Division of Applied Life Science (BK21 Four Program), Plant Molecular Biology and Biotechnology Research CenterGyeongsang National UniversityJinjuRepublic of Korea
- Division of Life ScienceGyeongsang National UniversityJinjuRepublic of Korea
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15
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Giordano L, Schimmerling M, Panabières F, Allasia V, Keller H. The exodomain of the impaired oomycete susceptibility 1 receptor mediates both endoplasmic reticulum stress responses and abscisic acid signalling during downy mildew infection of Arabidopsis. MOLECULAR PLANT PATHOLOGY 2022; 23:1783-1791. [PMID: 36103373 PMCID: PMC9644275 DOI: 10.1111/mpp.13265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/13/2022] [Accepted: 08/18/2022] [Indexed: 06/15/2023]
Abstract
The phytohormone abscisic acid (ABA) regulates cell growth and plant development, and contributes to defence responses to pathogens. We previously showed that the Arabidopsis malectin-like domain leucine-rich repeat receptor-like kinase (MLD-LRR-RLK) impaired oomycete susceptibility 1 (IOS1) attenuates ABA signalling during infection with the oomycete downy mildew pathogen Hyaloperonospora arabidopsidis. The exodomain of IOS1 with its MLD retains the receptor in the endoplasmic reticulum (ER), where it interacts with the ribophorin HAP6 to dampen a pathogen-induced ER stress response called the unfolded protein response (UPR). The down-regulation of both ABA and UPR signalling probably provides the pathogen with an advantage for infection. Here, we show that ABA-related phenotypes of the ios1-1 mutant, such as up-regulated expression of ABA-responsive genes and hypersensitivity to exogenous ABA application, were reverted by expression of the IOS1 exodomain in the mutant background. Furthermore, knockdown mutants for ER-resident HAP6 showed similarly reduced UPR and ABA signalling, indicating that HAP6 positively regulates both pathways. Our data suggest that the IOS1 exodomain and HAP6 contribute in the ER to the IOS1-mediated interference with ABA and UPR signalling.
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Affiliation(s)
- Laïla Giordano
- Université Côte d'Azur, INRAE, CNRS, UMR1355‐7254, ISASophia AntipolisFrance
| | - Marion Schimmerling
- Université Côte d'Azur, INRAE, CNRS, UMR1355‐7254, ISASophia AntipolisFrance
| | - Franck Panabières
- Université Côte d'Azur, INRAE, CNRS, UMR1355‐7254, ISASophia AntipolisFrance
| | - Valérie Allasia
- Université Côte d'Azur, INRAE, CNRS, UMR1355‐7254, ISASophia AntipolisFrance
| | - Harald Keller
- Université Côte d'Azur, INRAE, CNRS, UMR1355‐7254, ISASophia AntipolisFrance
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16
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Giordano L, Allasia V, Cremades A, Hok S, Panabières F, Bailly-Maître B, Keller H. A plant receptor domain with functional analogies to animal malectin disables ER stress responses upon infection. iScience 2022; 25:103877. [PMID: 35243239 PMCID: PMC8861646 DOI: 10.1016/j.isci.2022.103877] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 01/06/2022] [Accepted: 02/02/2022] [Indexed: 11/16/2022] Open
Abstract
Malectins from the oligosaccharyltransferase (OST) complex in the endoplasmic reticulum (ER) of animal cells are involved in ER quality control and contribute to the Unfolded Protein Response (UPR). Malectins are not found in plant cells, but malectin-like domains (MLDs) are constituents of many membrane-bound receptors. In Arabidopsis thaliana, the MLD-containing receptor IOS1 promotes successful infection by filamentous plant pathogens. We show that the MLD of its exodomain retains IOS1 in the ER of plant cells and attenuates the infection-induced UPR. Expression of the MLD in the ios1-1 knockout background is sufficient to complement infection-related phenotypes of the mutant, such as increased UPR and reduced disease susceptibility. IOS1 interacts with the ER membrane-associated ribophorin HAP6 from the OST complex, and hap6 mutants show decreased pathogen-responsive UPR and increased disease susceptibility. Altogether, this study revealed a previously uncharacterized role of a plant receptor domain in the regulation of ER stress during infection. The Unfolded Protein Response (UPR) in plants impairs downy mildew infection The pathogen exploits a molecular mechanism of the host cell to promote disease The extracellular domain of the receptor IOS1 attenuates the pathogen-induced UPR IOS1 interacts with the ribophorin HAP6 in the ER to fine-tune the UPR
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17
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Jing XQ, Li WQ, Zhou MR, Shi PT, Zhang R, Shalmani A, Muhammad I, Wang GF, Liu WT, Chen KM. Rice Carbohydrate-Binding Malectin-Like Protein, OsCBM1, Contributes to Drought-Stress Tolerance by Participating in NADPH Oxidase-Mediated ROS Production. RICE (NEW YORK, N.Y.) 2021; 14:100. [PMID: 34874506 PMCID: PMC8651890 DOI: 10.1186/s12284-021-00541-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Accepted: 11/28/2021] [Indexed: 05/13/2023]
Abstract
Carbohydrate-binding malectin/malectin-like domain-containing proteins (CBMs) are a recently identified protein subfamily of lectins that participates various functional bioprocesses in the animal, bacterial, and plant kingdoms. However, little is known the roles of CBMs in rice development and stress response. In this study, OsCBM1, which encodes a protein containing only one malectin-like domain, was cloned and characterized. OsCBM1 is localized in both the endoplasmic reticulum and plasma membrane. Its transcripts are dominantly expressed in leaves and could be significantly stimulated by a number of phytohormone applications and abiotic stress treatments. Overexpression of OsCBM1 increased drought tolerance and reactive oxygen species production in rice, whereas the knockdown of the gene decreased them. OsCBM1 physically interacts with OsRbohA, a NADPH oxidase, and the expression of OsCBM1 in osrbohA, an OsRbohA-knockout mutant, is significantly downregulated under both normal growth and drought stress conditions. Meanwhile, OsCBM1 can also physically interacts with OsRacGEF1, a specific guanine nucleotide exchange factor for the Rop/Rac GTPase OsRac1, and transient coexpression of OsCBM1 with OaRacGEF1 significantly enhanced ROS production. Further transcriptome analysis showed that multiple signaling regulatory mechanisms are involved in the OsCBM1-mediated processes. All these results suggest that OsCBM1 participates in NADPH oxidase-mediated ROS production by interacting with OsRbohA and OsRacGEF1, contributing to drought stress tolerance of rice. Multiple signaling pathways are likely involved in the OsCBM1-mediated stress tolerance in rice.
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Affiliation(s)
- Xiu-Qing Jing
- State Key Laboratory of Crop Stress Biology in Arid Area, College of Life Sciences, Northwest A&F University, Yangling, 712100 Shaanxi China
- Department of Biology, Taiyuan Normal University, Taiyuan, 030619 Shanxi China
| | - Wen-Qiang Li
- State Key Laboratory of Crop Stress Biology in Arid Area, College of Life Sciences, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Meng-Ru Zhou
- State Key Laboratory of Crop Stress Biology in Arid Area, College of Life Sciences, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Peng-Tao Shi
- State Key Laboratory of Crop Stress Biology in Arid Area, College of Life Sciences, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Ran Zhang
- State Key Laboratory of Crop Stress Biology in Arid Area, College of Life Sciences, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Abdullah Shalmani
- State Key Laboratory of Crop Stress Biology in Arid Area, College of Life Sciences, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Izhar Muhammad
- State Key Laboratory of Crop Stress Biology in Arid Area, College of Life Sciences, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Gang-Feng Wang
- State Key Laboratory of Crop Stress Biology in Arid Area, College of Life Sciences, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Wen-Ting Liu
- State Key Laboratory of Crop Stress Biology in Arid Area, College of Life Sciences, Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Kun-Ming Chen
- State Key Laboratory of Crop Stress Biology in Arid Area, College of Life Sciences, Northwest A&F University, Yangling, 712100 Shaanxi China
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18
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Yang H, Wang D, Guo L, Pan H, Yvon R, Garman S, Wu HM, Cheung AY. Malectin/Malectin-like domain-containing proteins: A repertoire of cell surface molecules with broad functional potential. Cell Surf 2021; 7:100056. [PMID: 34308005 PMCID: PMC8287233 DOI: 10.1016/j.tcsw.2021.100056] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 06/06/2021] [Accepted: 06/18/2021] [Indexed: 11/26/2022] Open
Abstract
Cell walls are at the front line of interactions between walled-organisms and their environment. They support cell expansion, ensure cell integrity and, for multicellular organisms such as plants, they provide cell adherence, support cell shape morphogenesis and mediate cell-cell communication. Wall-sensing, detecting perturbations in the wall and signaling the cell to respond accordingly, is crucial for growth and survival. In recent years, plant signaling research has suggested that a large family of receptor-like kinases (RLKs) could function as wall sensors partly because their extracellular domains show homology with malectin, a diglucose binding protein from the endoplasmic reticulum of animal cells. Studies of several malectin/malectin-like (M/ML) domain-containing RLKs (M/MLD-RLKs) from the model plant Arabidopsis thaliana have revealed an impressive array of biological roles, controlling growth, reproduction and stress responses, processes that in various ways rely on or affect the cell wall. Malectin homologous sequences are widespread across biological kingdoms, but plants have uniquely evolved a highly expanded family of proteins with ML domains embedded within various protein contexts. Here, we present an overview on proteins with malectin homologous sequences in different kingdoms, discuss the chromosomal organization of Arabidopsis M/MLD-RLKs and the phylogenetic relationship between these proteins from several model and crop species. We also discuss briefly the molecular networks that enable the diverse biological roles served by M/MLD-RLKs studied thus far.
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Affiliation(s)
- He Yang
- Department of Biochemistry and Molecular Biology, University of Massachusetts, USA
- Molecular and Cellular Biology Program, University of Massachusetts, USA
| | - Dong Wang
- Department of Biochemistry and Molecular Biology, University of Massachusetts, USA
- Molecular and Cellular Biology Program, University of Massachusetts, USA
- Plant Biology Graduate Program, University of Massachusetts, Amherst, MA 01003, USA
| | - Li Guo
- Molecular and Cellular Biology Program, University of Massachusetts, USA
- Faculty of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China
| | - Huairong Pan
- Molecular and Cellular Biology Program, University of Massachusetts, USA
- College of Biology, Hunan University, Changsha 410082, China
| | - Robert Yvon
- Department of Biochemistry and Molecular Biology, University of Massachusetts, USA
- Molecular and Cellular Biology Program, University of Massachusetts, USA
| | - Scott Garman
- Department of Biochemistry and Molecular Biology, University of Massachusetts, USA
- Molecular and Cellular Biology Program, University of Massachusetts, USA
| | - Hen-Ming Wu
- Department of Biochemistry and Molecular Biology, University of Massachusetts, USA
- Molecular and Cellular Biology Program, University of Massachusetts, USA
| | - Alice Y. Cheung
- Department of Biochemistry and Molecular Biology, University of Massachusetts, USA
- Molecular and Cellular Biology Program, University of Massachusetts, USA
- Plant Biology Graduate Program, University of Massachusetts, Amherst, MA 01003, USA
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19
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Dominguez PG, Conti G, Duffy T, Insani M, Alseekh S, Asurmendi S, Fernie AR, Carrari F. Multiomics analyses reveal the roles of the ASR1 transcription factor in tomato fruits. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:6490-6509. [PMID: 34100923 DOI: 10.1093/jxb/erab269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 06/05/2021] [Indexed: 06/12/2023]
Abstract
The transcription factor ASR1 (ABA, STRESS, RIPENING 1) plays multiple roles in plant responses to abiotic stresses as well as being involved in the regulation of central metabolism in several plant species. However, despite the high expression of ASR1 in tomato fruits, large scale analyses to uncover its function in fruits are still lacking. In order to study its function in the context of fruit ripening, we performed a multiomics analysis of ASR1-antisense transgenic tomato fruits at the transcriptome and metabolome levels. Our results indicate that ASR1 is involved in several pathways implicated in the fruit ripening process, including cell wall, amino acid, and carotenoid metabolism, as well as abiotic stress pathways. Moreover, we found that ASR1-antisense fruits are more susceptible to the infection by the necrotrophic fungus Botrytis cinerea. Given that ASR1 could be regulated by fruit ripening regulators such as FRUITFULL1/FRUITFULL2 (FUL1/FUL2), NON-RIPENING (NOR), and COLORLESS NON-RIPENING (CNR), we positioned it in the regulatory cascade of red ripe tomato fruits. These data extend the known range of functions of ASR1 as an important auxiliary regulator of tomato fruit ripening.
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Affiliation(s)
- Pia Guadalupe Dominguez
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Hurlingham, Buenos Aires, Argentina
| | - Gabriela Conti
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Hurlingham, Buenos Aires, Argentina
- Facultad de Agronomía. Cátedra de Genética. Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Tomás Duffy
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Hurlingham, Buenos Aires, Argentina
| | - Marina Insani
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Hurlingham, Buenos Aires, Argentina
| | - Saleh Alseekh
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
- Center of Plant Systems Biology and Biotechnology, 4000 Plovdiv, Bulgaria
| | - Sebastián Asurmendi
- Instituto de Agrobiotecnología y Biología Molecular (IABIMO), Instituto Nacional de Tecnología Agropecuaria (INTA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Hurlingham, Buenos Aires, Argentina
| | - Alisdair R Fernie
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476 Potsdam-Golm, Germany
- Center of Plant Systems Biology and Biotechnology, 4000 Plovdiv, Bulgaria
| | - Fernando Carrari
- Facultad de Agronomía. Cátedra de Genética. Universidad de Buenos Aires, Buenos Aires, Argentina
- Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE-UBA-CONICET), Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
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20
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Wei X, Mira A, Yu Q, Gmitter FG. The Mechanism of Citrus Host Defense Response Repression at Early Stages of Infection by Feeding of Diaphorina citri Transmitting Candidatus Liberibacter asiaticus. FRONTIERS IN PLANT SCIENCE 2021; 12:635153. [PMID: 34168662 PMCID: PMC8218908 DOI: 10.3389/fpls.2021.635153] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 04/29/2021] [Indexed: 06/01/2023]
Abstract
Citrus Huanglongbing (HLB) is the most devastating disease of citrus, presumably caused by "Candidatus Liberibacter asiaticus" (CaLas). Although transcriptomic profiling of HLB-affected citrus plants has been studied extensively, the initial steps in pathogenesis have not been fully understood. In this study, RNA sequencing (RNA-seq) was used to compare very early transcriptional changes in the response of Valencia sweet orange (VAL) to CaLas after being fed by the vector, Diaphorina citri (Asian citrus psyllid, or ACP). The results suggest the existence of a delayed defense reaction against the infective vector in VAL, while the attack by the healthy vector prompted immediate and substantial transcriptomic changes that led to the rapid erection of active defenses. Moreover, in the presence of CaLas-infected psyllids, several downregulated differentially expressed genes (DEGs) were identified on the pathways, such as signaling, transcription factor, hormone, defense, and photosynthesis-related pathways at 1 day post-infestation (dpi). Surprisingly, a burst of DEGs (6,055) was detected at 5 dpi, including both upregulated and downregulated DEGs on the defense-related and secondary metabolic pathways, and severely downregulated DEGs on the photosynthesis-related pathways. Very interestingly, a significant number of those downregulated DEGs required ATP binding for the activation of phosphate as substrate; meanwhile, abundant highly upregulated DEGs were detected on the ATP biosynthetic and glycolytic pathways. These findings highlight the energy requirement of CaLas virulence processes. The emerging picture is that CaLas not only employs virulence strategies to subvert the host cell immunity, but the fast-replicating CaLas also actively rewires host cellular metabolic pathways to obtain the necessary energy and molecular building blocks to support virulence and the replication process. Taken together, the very early response of citrus to the CaLas, vectored by infective ACP, was evaluated for the first time, thus allowing the changes in gene expression relating to the primary mechanisms of susceptibility and host-pathogen interactions to be studied, and without the secondary effects caused by the development of complex whole plant symptoms.
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Affiliation(s)
- Xu Wei
- Citrus Research and Education Center, University of Florida, Lake Alfred, FL, United States
- College of Horticulture and Landscape, Southwest University, Chongqing, China
| | - Amany Mira
- Citrus Research and Education Center, University of Florida, Lake Alfred, FL, United States
- Department of Horticulture, Faculty of Agriculture, Tanta University, Tanta, Egypt
| | - Qibin Yu
- Citrus Research and Education Center, University of Florida, Lake Alfred, FL, United States
| | - Fred G. Gmitter
- Citrus Research and Education Center, University of Florida, Lake Alfred, FL, United States
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21
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Yu TY, Sun MK, Liang LK. Receptors in the Induction of the Plant Innate Immunity. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2021; 34:587-601. [PMID: 33512246 DOI: 10.1094/mpmi-07-20-0173-cr] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Plants adjust amplitude and duration of immune responses via different strategies to maintain growth, development, and resistance to pathogens. Pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI) and effector-triggered immunity (ETI) play vital roles. Pattern recognition receptors, comprising a large number of receptor-like protein kinases and receptor-like proteins, recognize related ligands and trigger immunity. PTI is the first layer of the innate immune system, and it recognizes PAMPs at the plasma membrane to prevent infection. However, pathogens exploit effector proteins to bypass or directly inhibit the PTI immune pathway. Consistently, plants have evolved intracellular nucleotide-binding domain and leucine-rich repeat-containing proteins to detect pathogenic effectors and trigger a hypersensitive response to activate ETI. PTI and ETI work together to protect plants from infection by viruses and other pathogens. Diverse receptors and the corresponding ligands, especially several pairs of well-studied receptors and ligands in PTI immunity, are reviewed to illustrate the dynamic process of PTI response here.[Formula: see text] Copyright © 2021 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)
- Tian-Ying Yu
- College of Life Sciences, Yantai University, Yantai 264005, China
| | - Meng-Kun Sun
- College of Life Sciences, Yantai University, Yantai 264005, China
| | - Li-Kun Liang
- College of Life Sciences, Yantai University, Yantai 264005, China
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22
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Zhang C, Badri Anarjan M, Win KT, Begum S, Lee S. QTL-seq analysis of powdery mildew resistance in a Korean cucumber inbred line. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2021; 134:435-451. [PMID: 33070226 DOI: 10.1007/s00122-020-03705-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 10/08/2020] [Indexed: 06/11/2023]
Abstract
QTL mapping and RT-PCR analyses identified the CsGy5G015660 as a strong powdery mildew resistance candidate gene and natural variation of CsGy5G015660 allele was observed using 115 core germplasm. Powdery mildew (PM) is among the most serious fungal diseases encountered in the cultivation of cucurbits. The development of PM-resistant inbred lines is thus of considerable significance for cucumber breeding programs. In this study, we applied bulked segregant analysis combined with QTL-seq to identify PM resistance loci using F2 population derived from a cross between two Korean cucumber inbred lines, PM-R (resistant) and PM-S (susceptible). Genome-wide SNP profiling using bulks of the two extreme phenotypes identified two QTLs on chromosomes 5 and 6, designated pm5.2 and pm6.1, respectively. The two PM resistance loci were validated using molecular marker-based classical QTL analysis: pm5.2 (30% R2 at LOD 11) and pm6.1 (11% R2 at LOD 3.2). Furthermore, reverse transcriptase-PCR analyses, using genes found to be polymorphic between PM-R and PM-S, were conducted to identify the candidate gene(s) responsible for PM resistance. We found that transcripts of the gene CsGy5G015660, encoding a putative leucine-rich repeat receptor-like serine/threonine-protein kinase (RPK2), showed specific accumulation in PM-R prior to the appearance of disease symptoms, and was accordingly considered a strong candidate gene for PM resistance. In addition, cleaved amplified polymorphic sequence markers from CsGy5G015660 were developed and used to screen 35 inbred lines. Natural variation in the CsGy5G015660 allele was also observed based on analysis of a core collection of 115 cucumber accessions. Our results provide new genetic insights for gaining a better understanding of the genetic basis of PM resistance in cucumber, and pave the way for further utilization in cucumber PM resistance breeding programs.
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Affiliation(s)
- Chunying Zhang
- Plant Genomics Laboratory, Department of Bio-Resource Engineering, College of Life Sciences, Sejong University, 209 Neungdong-ro, Gwanjing-gu, Seoul, 05006, Republic of Korea
- Department of Integrated Bioindustry, Graduate School of Hanseo University, 46 hanseo 1-ro, Haemi-myun, Seosan-si, Chungcheongnam-do, 31962, Republic of Korea
| | - Mahdi Badri Anarjan
- Plant Genomics Laboratory, Department of Bio-Resource Engineering, College of Life Sciences, Sejong University, 209 Neungdong-ro, Gwanjing-gu, Seoul, 05006, Republic of Korea
| | - Khin Thanda Win
- Plant Genomics Laboratory, Department of Bio-Resource Engineering, College of Life Sciences, Sejong University, 209 Neungdong-ro, Gwanjing-gu, Seoul, 05006, Republic of Korea
| | - Shahida Begum
- Plant Genomics Laboratory, Department of Bio-Resource Engineering, College of Life Sciences, Sejong University, 209 Neungdong-ro, Gwanjing-gu, Seoul, 05006, Republic of Korea
| | - Sanghyeob Lee
- Plant Genomics Laboratory, Department of Bio-Resource Engineering, College of Life Sciences, Sejong University, 209 Neungdong-ro, Gwanjing-gu, Seoul, 05006, Republic of Korea.
- Plant Engineering Research Institute, Sejong University, 209 Neungdong-ro, Gwanjing-gu, Seoul, 05006, Republic of Korea.
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23
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Genome-Wide Characterization, Evolution, and Expression Analysis of the Leucine-Rich Repeat Receptor-Like Protein Kinase (LRR-RLK) Gene Family in Medicago truncatula. Life (Basel) 2020; 10:life10090176. [PMID: 32899802 PMCID: PMC7555646 DOI: 10.3390/life10090176] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 08/28/2020] [Accepted: 09/02/2020] [Indexed: 11/23/2022] Open
Abstract
Leucine-rich repeat receptor-like kinases (LRR-RLKs) constitute the largest subfamily of receptor-like kinases (RLKs) in plants. They play roles in plant growth and developmental and physiological processes, but less is known about the functions of LRR-RLKs in Medicago truncatula. Our genome-wide analysis revealed 329 LRR-RLK genes in the M.truncatula genome. Phylogenetic and classification analysis suggested that these genes could be classified into 15 groups and 24 subgroups. A total of 321 genes were mapped onto all chromosomes, and 23 tandem duplications (TDs) involving 56 genes were distributed on each chromosome except 4. Twenty-seven M.truncatula LRR-RLK segmental duplication gene pairs were colinearly related. The exon/intron organization, motif composition and arrangements were relatively conserved among members of the same groups or subgroups. Using publicly available RNAseq data and quantitative real-time polymerase chain reaction (qRT-PCR), expression profiling suggested that LRR-RLKs were differentially expressed among different tissues, while some were expressed specifically in the roots and nodules. The expression of LRR-RLKs in A17 and 4 nodule mutants under rhizobial infection showed that 36 LRR-RKLs were highly upregulated in the sickle (skl) mutant [an ethylene (ET)-insensitive, Nod factor-hypersensitive mutant] after 12 h of rhizobium inoculation. Among these LRR-RLKs, six genes were also expressed specifically in the roots and nodules, which might be specific to the Nod factor and involved in autoregulation of the nodulation signal. Our results provide information on the LRR-RLK gene family in M. truncatula and serve as a guide for functional research of the LRR-RLKs.
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24
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Navet N, Tian M. Efficient targeted mutagenesis in allotetraploid sweet basil by CRISPR/Cas9. PLANT DIRECT 2020; 4:e00233. [PMID: 32537560 PMCID: PMC7287412 DOI: 10.1002/pld3.233] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 05/14/2020] [Accepted: 05/15/2020] [Indexed: 05/25/2023]
Abstract
Sweet basil (Ocimum basilicum) is an economically important herb and its global production is threatened by basil downy mildew caused by the obligate biotrophic oomycete Peronospora belbahrii. Effective tools are required for functional understanding of its genes involved in synthesis of valuable secondary metabolites in essential oil and disease resistance, and breeding for varieties with improved traits. Clustered regularly interspaced short palindromic repeat (CRISPR)/Cas9 gene editing technology has revolutionized crop breeding and functional genomics. The applicability and efficacy of this genomic tool in the allotetraploid sweet basil were tested by editing a potential susceptibility (S) gene ObDMR1, the basil homolog of Arabidopsis DMR1 (Downy Mildew Resistant 1) whose mutations conferred nearly complete resistance against Arabidopsis downy mildew pathogen, Hyaloperonospora arabidopsidis. Two single guide RNAs targeting two different sites of the ObDMR1 coding sequence were designed. A total of 56 transgenic lines were obtained via Agrobacterium-mediated stable transformation. Mutational analysis of 54 T0 transgenic lines identified 92.6% lines carrying mutations at target 1 site, while a very low mutation frequency was detected at target 2 site. Deep sequencing of six T0 lines revealed various mutations at target 1 site, with a complete knockout of all alleles in one line. ObDMR1 homozygous mutant plants with some being transgene free were identified from T1 segregating populations. T2 homozygous mutant plants with 1-bp frameshift mutations exhibited a dwarf phenotype at young seedling stage. In summary, this study established a highly efficient CRISPR/Cas9-mediated gene editing system for targeted mutagenesis in sweet basil. This system has the capacity to generate complete knockout mutants in this allotetraploid species at the first generation of transgenic plants and transgene-free homozygous mutants in the second generation. The establishment of this system is expected to accelerate basil functional genomics and breeding.
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Affiliation(s)
- Natasha Navet
- Department of Plant and Environmental Protection SciencesUniversity of Hawaii at ManoaHonoluluHIUSA
| | - Miaoying Tian
- Department of Plant and Environmental Protection SciencesUniversity of Hawaii at ManoaHonoluluHIUSA
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25
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Zhang M, Liu Q, Yang X, Xu J, Liu G, Yao X, Ren R, Xu J, Lou L. CRISPR/Cas9-mediated mutagenesis of Clpsk1 in watermelon to confer resistance to Fusarium oxysporum f.sp. niveum. PLANT CELL REPORTS 2020; 39:589-595. [PMID: 32152696 DOI: 10.1007/s00299-020-02516-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 02/02/2020] [Indexed: 05/20/2023]
Abstract
CRISPR/Cas9-mediated editing of Clpsk1 enhanced watermelon resistance to Fusarium oxysporum. The clustered regularly interspaced short palindromic repeats (CRISPR)/Cas9 system has proven to be an effective genome-editing tool for crop improvement. Previous studies described that Phytosulfokine (PSK) signalling attenuates plant immune response. In this work, we employed the CRISPR/Cas9 system to knockout Clpsk1 gene, encoding the PSK precursor, to confer enhanced watermelon resistance to Fusarium oxysporum f.sp. niveum (FON). Interactions between PSK and FON were analysed and it was found that transcript of Clpsk1 was significantly induced upon FON infection. Meanwhile, application of exogenous PSK increased the pathogen growth. Then, one sgRNA, which targeted the first exon of Clpsk1, was selected for construction of pRGEB32-CAS9-gRNA-Clpsk1 expression cassette. The construct was then transformed to watermelon through Agrobacterium tumefaciens-mediated transformation method. Six mutant plants were obtained and three types of mutations at the expected position were identified based on Sanger sequencing. Resistance evaluation indicated that Clpsk1 loss-of-function rendered watermelon seedlings more resistant to infection by FON. These results indicate that CRISPR/Cas9-mediated gene modification is an effective approach for watermelon improvement.
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Affiliation(s)
- Man Zhang
- Institute of Vegetable, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China
- Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Nanjing, 210014, Jiangsu, China
| | - Qiling Liu
- Institute of Vegetable, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China
- Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Nanjing, 210014, Jiangsu, China
| | - Xingping Yang
- Institute of Vegetable, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China.
- Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Nanjing, 210014, Jiangsu, China.
| | - Jinhua Xu
- Institute of Vegetable, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China
- Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Nanjing, 210014, Jiangsu, China
| | - Guang Liu
- Institute of Vegetable, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China
- Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Nanjing, 210014, Jiangsu, China
| | - Xiefeng Yao
- Institute of Vegetable, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China
- Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Nanjing, 210014, Jiangsu, China
| | - Runsheng Ren
- Institute of Vegetable, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China
- Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Nanjing, 210014, Jiangsu, China
| | - Jian Xu
- Institute of Vegetable, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China
- Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Nanjing, 210014, Jiangsu, China
| | - Lina Lou
- Institute of Vegetable, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China
- Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Nanjing, 210014, Jiangsu, China
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26
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Dievart A, Gottin C, Périn C, Ranwez V, Chantret N. Origin and Diversity of Plant Receptor-Like Kinases. ANNUAL REVIEW OF PLANT BIOLOGY 2020; 71:131-156. [PMID: 32186895 DOI: 10.1146/annurev-arplant-073019-025927] [Citation(s) in RCA: 117] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Because of their high level of diversity and complex evolutionary histories, most studies on plant receptor-like kinase subfamilies have focused on their kinase domains. With the large amount of genome sequence data available today, particularly on basal land plants and Charophyta, more attention should be paid to primary events that shaped the diversity of the RLK gene family. We thus focus on the motifs and domains found in association with kinase domains to illustrate their origin, organization, and evolutionary dynamics. We discuss when these different domain associations first occurred and how they evolved, based on a literature review complemented by some of our unpublished results.
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Affiliation(s)
- Anne Dievart
- CIRAD, UMR AGAP, F-34398 Montpellier, France;
- AGAP, Université de Montpellier, CIRAD, INRA, Montpellier SupAgro, F-34060 Montpellier, France
| | - Céline Gottin
- CIRAD, UMR AGAP, F-34398 Montpellier, France;
- AGAP, Université de Montpellier, CIRAD, INRA, Montpellier SupAgro, F-34060 Montpellier, France
| | - Christophe Périn
- CIRAD, UMR AGAP, F-34398 Montpellier, France;
- AGAP, Université de Montpellier, CIRAD, INRA, Montpellier SupAgro, F-34060 Montpellier, France
| | - Vincent Ranwez
- AGAP, Université de Montpellier, CIRAD, INRA, Montpellier SupAgro, F-34060 Montpellier, France
| | - Nathalie Chantret
- AGAP, Université de Montpellier, CIRAD, INRA, Montpellier SupAgro, F-34060 Montpellier, France
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27
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Kim HC, Kim KH, Song K, Kim JY, Lee BM. Identification and Validation of Candidate Genes Conferring Resistance to Downy Mildew in Maize ( Zea mays L.). Genes (Basel) 2020; 11:E191. [PMID: 32053973 PMCID: PMC7074223 DOI: 10.3390/genes11020191] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 02/05/2020] [Accepted: 02/05/2020] [Indexed: 11/16/2022] Open
Abstract
Downy mildew (DM) is a major disease of maize that causes significant yield loss in subtropical and tropical regions around the world. A variety of DM strains have been reported, and the resistance to them is polygenically controlled. In this study, we analyzed the quantitative trait loci (QTLs) involved in resistance to Peronosclerospora sorghi (sorghum DM), P. maydis (Java DM), and Sclerophthora macrospora (crazy top DM) using a recombinant inbred line (RIL) from a cross between B73 (susceptible) and Ki11 (resistant), and the candidate genes for P. sorghi, P. maydis, and S. macrospora resistance were discovered. The linkage map was constructed with 234 simple sequence repeat (SSR) and restriction fragment length polymorphism (RFLP) markers, which was identified seven QTLs (chromosomes 2, 3, 6, and 9) for three DM strains. The major QTL, located on chromosome 2, consists of 12.95% of phenotypic variation explained (PVE) and a logarithm of odds (LOD) score of 14.12. Sixty-two candidate genes for P. sorghi, P. maydis, and S. macrospora resistance were obtained between the flanked markers in the QTL regions. The relative expression level of candidate genes was evaluated by quantitative real-time polymerase chain reaction (qRT-PCR) using resistant (CML228, Ki3, and Ki11) and susceptible (B73 and CML270) genotypes. For the 62 candidate genes, 15 genes were upregulated in resistant genotypes. Among these, three (GRMZM2G028643, GRMZM2G128315, and GRMZM2G330907) and AC210003.2_FG004 were annotated as leucine-rich repeat (LRR) and peroxidase (POX) genes, respectively. These candidate genes in the QTL regions provide valuable information for further studies related to P. sorghi, P. maydis, and S. macrospora resistance.
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Affiliation(s)
- Hyo Chul Kim
- Department of Life Science, Dongguk University-Seoul, Seoul 04620, Korea; (H.C.K.); (K.-H.K.); (K.S.)
| | - Kyung-Hee Kim
- Department of Life Science, Dongguk University-Seoul, Seoul 04620, Korea; (H.C.K.); (K.-H.K.); (K.S.)
| | - Kitae Song
- Department of Life Science, Dongguk University-Seoul, Seoul 04620, Korea; (H.C.K.); (K.-H.K.); (K.S.)
| | - Jae Yoon Kim
- Department of Plant Resources, College of Industrial Science, Kongju National University, Yesan 32439, Korea;
| | - Byung-Moo Lee
- Department of Life Science, Dongguk University-Seoul, Seoul 04620, Korea; (H.C.K.); (K.-H.K.); (K.S.)
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28
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Kant R, Tyagi K, Ghosh S, Jha G. Host Alternative NADH:Ubiquinone Oxidoreductase Serves as a Susceptibility Factor to Promote Pathogenesis of Rhizoctonia solani in Plants. PHYTOPATHOLOGY 2019; 109:1741-1750. [PMID: 31179856 DOI: 10.1094/phyto-02-19-0055-r] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Phytopathogens have evolved mechanisms to utilize host genes (commonly known as susceptibility factors) to promote their pathogenesis. Rhizoctonia solani is a highly destructive fungal pathogen of various plants, including rice. We previously reported rice genes that were differentially regulated during R. solani pathogenesis. In this study, we analyzed the role of tomato homologs of two rice genes, isoflavone reductase (IFR) and alternative NADH:ubiquinone oxidoreductase (NUOR), as potential susceptibility factors for R. solani. Virus-induced gene silencing of NUOR in tomato resulted in compromised susceptibility against R. solani, whereas IFR-silenced plants demonstrated susceptibility similar to that of control plants. NUOR silencing in tomato led to homogenous accumulation of reactive oxygen species (optimum range) upon R. solani infection. In addition, the expression and enzyme activity of some host defense and antioxidant genes was enhanced, whereas H2O2 content, lipid peroxidation, and electrolyte leakage were reduced in NUOR-silenced plants. Similarly, transient silencing of OsNUOR provided tolerance against R. solani infection in rice. Overall, the data presented in this study suggest that NUOR serves as a host susceptibility factor to promote R. solani pathogenesis.
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Affiliation(s)
- Ravi Kant
- Plant Microbe Interactions Laboratory, National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Kriti Tyagi
- Plant Microbe Interactions Laboratory, National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Srayan Ghosh
- Plant Microbe Interactions Laboratory, National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi 110067, India
| | - Gopaljee Jha
- Plant Microbe Interactions Laboratory, National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi 110067, India
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Niño-González M, Novo-Uzal E, Richardson DN, Barros PM, Duque P. More Transporters, More Substrates: The Arabidopsis Major Facilitator Superfamily Revisited. MOLECULAR PLANT 2019; 12:1182-1202. [PMID: 31330327 DOI: 10.1016/j.molp.2019.07.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 07/10/2019] [Accepted: 07/11/2019] [Indexed: 05/20/2023]
Abstract
The Major Facilitator Superfamily (MFS) is ubiquitous in living organisms and represents the largest group of secondary active membrane transporters. In plants, significant research efforts have focused on the role of specific families within the MFS, particularly those transporting macronutrients (C, N, and P) that constitute the vast majority of the members of this superfamily. Other MFS families remain less explored, although a plethora of additional substrates and physiological functions have been uncovered. Nevertheless, the lack of a systematic approach to analyzing the MFS as a whole has obscured the high diversity and versatility of these transporters. Here, we present a phylogenetic analysis of all annotated MFS domain-containing proteins encoded in the Arabidopsis thaliana genome and propose that this superfamily of transporters consists of 218 members, clustered in 22 families. In reviewing the available information regarding the diversity in biological functions and substrates of Arabidopsis MFS members, we provide arguments for intensified research on these membrane transporters to unveil the breadth of their physiological relevance, disclose the molecular mechanisms underlying their mode of action, and explore their biotechnological potential.
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Affiliation(s)
| | | | | | - Pedro M Barros
- Genomics of Plant Stress Unit, ITQB NOVA - Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal
| | - Paula Duque
- Instituto Gulbenkian de Ciência, 2780-156 Oeiras, Portugal.
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A set of Arabidopsis genes involved in the accommodation of the downy mildew pathogen Hyaloperonospora arabidopsidis. PLoS Pathog 2019; 15:e1007747. [PMID: 31299058 PMCID: PMC6625732 DOI: 10.1371/journal.ppat.1007747] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Accepted: 04/03/2019] [Indexed: 12/14/2022] Open
Abstract
The intracellular accommodation structures formed by plant cells to host arbuscular mycorrhiza fungi and biotrophic hyphal pathogens are cytologically similar. Therefore we investigated whether these interactions build on an overlapping genetic framework. In legumes, the malectin-like domain leucine-rich repeat receptor kinase SYMRK, the cation channel POLLUX and members of the nuclear pore NUP107-160 subcomplex are essential for symbiotic signal transduction and arbuscular mycorrhiza development. We identified members of these three groups in Arabidopsis thaliana and explored their impact on the interaction with the oomycete downy mildew pathogen Hyaloperonospora arabidopsidis (Hpa). We report that mutations in the corresponding genes reduced the reproductive success of Hpa as determined by sporangiophore and spore counts. We discovered that a developmental transition of haustorial shape occurred significantly earlier and at higher frequency in the mutants. Analysis of the multiplication of extracellular bacterial pathogens, Hpa-induced cell death or callose accumulation, as well as Hpa- or flg22-induced defence marker gene expression, did not reveal any traces of constitutive or exacerbated defence responses. These findings point towards an overlap between the plant genetic toolboxes involved in the interaction with biotrophic intracellular hyphal symbionts and pathogens in terms of the gene families involved. Our work reveals genetic commonalities between biotrophic intracellular interactions with symbiotic and pathogenic hyphal microbes. The majority of land plants engages in arbuscular mycorrhiza (AM) symbiosis with phosphate-acquiring arbuscular mycorrhizal fungi to avoid phosphate starvation. Nutrient exchange in this interaction occurs via arbuscules, tree-shaped fungal structures, hosted within plant root cells. A series of plant genes including the Symbiosis Receptor-like kinase (SYMRK), members of the NUP107-160 subcomplex and nuclear envelope localised cation channels are required for a signalling process leading to the development of AM. The model plant Arabidopsis thaliana lost the ability to form AM. Although the ortholog of SYMRK was deleted during evolution, members of the malectin-like domain leucine-rich repeat receptor kinase (MLD-LRR-RK) gene family, components of the NUP107-160 subcomplex, and an ortholog of the nuclear envelope-localized cation channel POLLUX, are still present in the Arabidopsis genome, and Arabidopsis leaf cells retained the ability to accommodate haustoria, presumed feeding structures of the obligate biotrophic downy mildew pathogen Hyaloperonospora arabidopsidis. We discovered that both of these plant-microbe interactions utilize a corresponding set of genes including the ortholog of POLLUX, members of the NUP107-160 subcomplex and members of the MLD-LRR-RK gene family, thus revealing similarities in the plant program for the intracellular accommodation of biotrophic organisms in symbiosis and disease.
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Mou S, Gao F, Shen L, Yang S, He W, Cheng W, Wu Y, He S. CaLRR-RLK1, a novel RD receptor-like kinase from Capsicum annuum and transcriptionally activated by CaHDZ27, act as positive regulator in Ralstonia solanacearum resistance. BMC PLANT BIOLOGY 2019; 19:28. [PMID: 30654746 PMCID: PMC6337819 DOI: 10.1186/s12870-018-1609-6] [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: 12/04/2018] [Accepted: 12/19/2018] [Indexed: 05/13/2023]
Abstract
BACKGROUND Bacterial wilt caused by Ralstonia solanacearum is one of the most important diseases in pepper worldwide, however, the molecular mechanism underlying pepper resistance to bacterial wilt remains poorly understood. RESULTS Herein, a novel RD leucine-rich repeat receptor-like kinase, CaLRR-RLK1, was functionally characterized in immunity against R. solanacearum. CaLRR-RLK1 was targeted exclusively to plasma membrane and was up-regulated by R. solanacearum inoculation (RSI) as well as by the exogenous application of salicylic acid (SA), methyl jasmonate (MeJA) or ethephon (ETH). The silencing of CaLRR-RLK1 led to enhanced susceptibility of pepper plants to RSI, accompanied by down-regulation of immunity-related genes including CaACO1, CaHIR1, CaPR4 and CaPO2. In contrast, transient overexpression of CaLRR-RLK1 triggered hypersensitive response (HR)-like cell death and H2O2 accumulation in pepper leaves, manifested by darker trypan blue and DAB staining respectively. In addition, the ectopic overexpression of CaLRR-RLK1 in tobacco plants enhanced resistance R. solanacearum, accompanied with the immunity associated marker genes including NtPR2, NtPR2, NtHSR203 and NtHSR515. Furthermore, it was found that CaHDZ27, a positive regulator in pepper response to RSI in our previous study, transcriptionally activated CaLRR-RLK1 by direct targeting its promoter probably in a CAATTATTG dependent manner. CONCLUSION The study revealed that CaLRR-RLK1 confers pepper resistance to R. solanacearum as the direct targeting of CaHDZ27.
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Affiliation(s)
- Shaoliang Mou
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 People’s Republic of China
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 People’s Republic of China
- National Education Ministry Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 People’s Republic of China
| | - Feng Gao
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 People’s Republic of China
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 People’s Republic of China
- National Education Ministry Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 People’s Republic of China
| | - Lei Shen
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 People’s Republic of China
- National Education Ministry Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 People’s Republic of China
- College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 People’s Republic of China
| | - Sheng Yang
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 People’s Republic of China
- National Education Ministry Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 People’s Republic of China
- College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 People’s Republic of China
| | - Weihong He
- College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 People’s Republic of China
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 People’s Republic of China
- National Education Ministry Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 People’s Republic of China
| | - Wei Cheng
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 People’s Republic of China
- National Education Ministry Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 People’s Republic of China
- College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 People’s Republic of China
| | - Yang Wu
- College of Life Science, Jinggangshan University, Ji’an, Jiangxi 343000 People’s Republic of China
| | - Shuilin He
- Key Laboratory of Applied Genetics of Universities in Fujian Province, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 People’s Republic of China
- National Education Ministry Key Laboratory of Plant Genetic Improvement and Comprehensive Utilization, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 People’s Republic of China
- College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002 People’s Republic of China
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In silico Analysis of qBFR4 and qLBL5 in Conferring Quantitative Resistance Against Rice Blast. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2018. [DOI: 10.22207/jpam.12.4.03] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
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Sharma C, Saripalli G, Kumar S, Gautam T, Kumar A, Rani S, Jain N, Prasad P, Raghuvanshi S, Jain M, Sharma JB, Prabhu KV, Sharma PK, Balyan HS, Gupta PK. A study of transcriptome in leaf rust infected bread wheat involving seedling resistance gene Lr28. FUNCTIONAL PLANT BIOLOGY : FPB 2018; 45:1046-1064. [PMID: 32291004 DOI: 10.1071/fp17326] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Accepted: 04/09/2018] [Indexed: 05/02/2023]
Abstract
Leaf rust disease causes severe yield losses in wheat throughout the world. During the present study, high-throughput RNA-Seq analysis was used to gain insights into the role of Lr28 gene in imparting seedling leaf rust resistance in wheat. Differential expression analysis was conducted using a pair of near-isogenic lines (NILs) (HD 2329 and HD 2329+Lr28) at early (0h before inoculation (hbi), 24 and 48h after inoculation (hai)) and late stages (72, 96 and 168 hai) after inoculation with a virulent pathotype of pathogen Puccinia triticina. Expression of a large number of genes was found to be affected due to the presence/absence of Lr28. Gene ontology analysis of the differentially expressed transcripts suggested enrichment of transcripts involved in carbohydrate and amino acid metabolism, oxidative stress and hormone metabolism, in resistant and/or susceptible NILs. Genes encoding receptor like kinases (RLKs) (including ATP binding; serine threonine kinases) and other kinases were the most abundant class of genes, whose expression was affected. Genes involved in reactive oxygen species (ROS) homeostasis and several genes encoding transcription factors (TFs) (most abundant being WRKY TFs) were also identified along with some ncRNAs and histone variants. Quantitative real-time PCR was also used for validation of 39 representative selected genes. In the long term, the present study should prove useful in developing leaf rust resistant wheat cultivars through molecular breeding.
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Affiliation(s)
- Chanchal Sharma
- Department of Genetics and Plant Breeding, Ch.Charan Singh University, Meerut, 250004, India
| | - Gautam Saripalli
- Department of Genetics and Plant Breeding, Ch.Charan Singh University, Meerut, 250004, India
| | - Santosh Kumar
- Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, 110021, India
| | - Tinku Gautam
- Department of Genetics and Plant Breeding, Ch.Charan Singh University, Meerut, 250004, India
| | - Avneesh Kumar
- Department of Genetics and Plant Breeding, Ch.Charan Singh University, Meerut, 250004, India
| | - Sushma Rani
- Division of Genetics, Indian Agricultural Research Institute (IARI), Pusa, New Delhi, 110022, India
| | - Neelu Jain
- Division of Genetics, Indian Agricultural Research Institute (IARI), Pusa, New Delhi, 110022, India
| | - Pramod Prasad
- Regional Station, Indian Institute of Wheat and Barley Research, Flowerdale, Shimla, 171002, India
| | - Saurabh Raghuvanshi
- Department of Plant Molecular Biology, University of Delhi South Campus, New Delhi, 110021, India
| | - Mukesh Jain
- School of Computational and Integrative Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - J B Sharma
- Division of Genetics, Indian Agricultural Research Institute (IARI), Pusa, New Delhi, 110022, India
| | - K V Prabhu
- Division of Genetics, Indian Agricultural Research Institute (IARI), Pusa, New Delhi, 110022, India
| | - P K Sharma
- Department of Genetics and Plant Breeding, Ch.Charan Singh University, Meerut, 250004, India
| | - H S Balyan
- Department of Genetics and Plant Breeding, Ch.Charan Singh University, Meerut, 250004, India
| | - P K Gupta
- Department of Genetics and Plant Breeding, Ch.Charan Singh University, Meerut, 250004, India
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Yuan N, Rai KM, Balasubramanian VK, Upadhyay SK, Luo H, Mendu V. Genome-wide identification and characterization of LRR-RLKs reveal functional conservation of the SIF subfamily in cotton (Gossypium hirsutum). BMC PLANT BIOLOGY 2018; 18:185. [PMID: 30189845 PMCID: PMC6128003 DOI: 10.1186/s12870-018-1395-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 08/27/2018] [Indexed: 05/12/2023]
Abstract
BACKGROUND As one of the largest subfamilies of the receptor-like protein kinases (RLKs) in plants, Leucine Rich Repeats-RLKs (LRR-RLKs) are involved in many critical biological processes including growth, development and stress responses in addition to various physiological roles. Arabidopsis contains 234 LRR-RLKs, and four members of Stress Induced Factor (SIF) subfamily (AtSIF1-AtSIF4) which are involved in abiotic and biotic stress responses. Herein, we aimed at identification and functional characterization of SIF subfamily in cultivated tetraploid cotton Gossypium hirsutum. RESULTS Genome-wide analysis of cotton LRR-RLK gene family identified 543 members and phylogenetic analysis led to the identification of 6 cotton LRR-RLKs with high homology to Arabidopsis SIFs. Of the six SIF homologs, GhSIF1 is highly conserved exhibiting 46-47% of homology with AtSIF subfamily in amino acid sequence. The GhSIF1 was transiently silenced using Virus-Induced Gene Silencing system specifically targeting the 3' Untranslated Region. The transiently silenced cotton seedlings showed enhanced salt tolerance compared to the control plants. Further, the transiently silenced plants showed better growth, lower electrolyte leakage, and higher chlorophyll and biomass contents. CONCLUSIONS Overall, 543 LRR-RLK genes were identified using genome-wide analysis in cultivated tetraploid cotton G. hirsutum. The present investigation also demonstrated the conserved salt tolerance function of SIF family member in cotton. The GhSIF1 gene can be knocked out using genome editing technologies to improve salt tolerance in cotton.
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Affiliation(s)
- Ning Yuan
- Fiber and Biopolymer Research Institute (FBRI), Department of Plant and Soil Science, Texas Tech University, Lubbock, TX 79409 USA
| | - Krishan Mohan Rai
- Fiber and Biopolymer Research Institute (FBRI), Department of Plant and Soil Science, Texas Tech University, Lubbock, TX 79409 USA
| | - Vimal Kumar Balasubramanian
- Fiber and Biopolymer Research Institute (FBRI), Department of Plant and Soil Science, Texas Tech University, Lubbock, TX 79409 USA
| | | | - Hong Luo
- Department of Genetics and Biochemistry, Clemson University, Clemson, SC 29634 USA
| | - Venugopal Mendu
- Fiber and Biopolymer Research Institute (FBRI), Department of Plant and Soil Science, Texas Tech University, Lubbock, TX 79409 USA
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Jamieson PA, Shan L, He P. Plant cell surface molecular cypher: Receptor-like proteins and their roles in immunity and development. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2018; 274:242-251. [PMID: 30080610 PMCID: PMC6297115 DOI: 10.1016/j.plantsci.2018.05.030] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 05/03/2018] [Accepted: 05/26/2018] [Indexed: 05/21/2023]
Abstract
Plant receptor-like proteins (RLPs) are a family of transmembrane receptors which are distinguished from receptor-like kinases (RLKs) by their lack of a cytoplasmic kinase domain. RLPs continue to be implicated in a broad range of plant immunological and developmental processes as critical sensors or participants in receptor complexes on the plasma membrane. RLPs often associate with RLKs to activate or attenuate signal perception and relay. Some RLPs also physically cluster with RLKs and bear similar expression patterns. Here, we discuss the characteristics, function, and expression of characterized RLPs in the context of their associated RLKs in plant immunity and development.
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Affiliation(s)
- Pierce A Jamieson
- Department of Plant Pathology and Microbiology, and Institute for Plant Genomics and Biotechnology, Texas A&M University, College Station, TX 77843, USA
| | - Libo Shan
- Department of Plant Pathology and Microbiology, and Institute for Plant Genomics and Biotechnology, Texas A&M University, College Station, TX 77843, USA
| | - Ping He
- Department of Biochemistry and Biophysics, and Institute for Plant Genomics and Biotechnology, Texas A&M University, College Station, TX 77843, USA.
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36
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Good Riddance? Breaking Disease Susceptibility in the Era of New Breeding Technologies. AGRONOMY-BASEL 2018. [DOI: 10.3390/agronomy8070114] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Iizasa S, Iizasa E, Watanabe K, Nagano Y. Transcriptome analysis reveals key roles of AtLBR-2 in LPS-induced defense responses in plants. BMC Genomics 2017; 18:995. [PMID: 29284410 PMCID: PMC5747113 DOI: 10.1186/s12864-017-4372-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 12/08/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Lipopolysaccharide (LPS) from Gram-negative bacteria cause innate immune responses in animals and plants. The molecules involved in LPS signaling in animals are well studied, whereas those in plants are not yet as well documented. Recently, we identified Arabidopsis AtLBR-2, which binds to LPS from Pseudomonas aeruginosa (pLPS) directly and regulates pLPS-induced defense responses, such as pathogenesis-related 1 (PR1) expression and reactive oxygen species (ROS) production. In this study, we investigated the pLPS-induced transcriptomic changes in wild-type (WT) and the atlbr-2 mutant Arabidopsis plants using RNA-Seq technology. RESULTS RNA-Seq data analysis revealed that pLPS treatment significantly altered the expression of 2139 genes, with 605 up-regulated and 1534 down-regulated genes in WT. Gene ontology (GO) analysis on these genes showed that GO terms, "response to bacterium", "response to salicylic acid (SA) stimulus", and "response to abscisic acid (ABA) stimulus" were enriched amongst only in up-regulated genes, as compared to the genes that were down-regulated. Comparative analysis of differentially expressed genes between WT and the atlbr-2 mutant revealed that 65 genes were up-regulated in WT but not in the atlbr-2 after pLPS treatment. Furthermore, GO analysis on these 65 genes demonstrated their importance for the enrichment of several defense-related GO terms, including "response to bacterium", "response to SA stimulus", and "response to ABA stimulus". We also found reduced levels of pLPS-induced conjugated SA glucoside (SAG) accumulation in atlbr-2 mutants, and no differences were observed in the gene expression levels in SA-treated WT and the atlbr-2 mutants. CONCLUSION These 65 AtLBR-2-dependent up-regulated genes appear to be important for the enrichment of some defense-related GO terms. Moreover, AtLBR-2 might be a key molecule that is indispensable for the up-regulation of defense-related genes and for SA signaling pathway, which is involved in defense against pathogens containing LPS.
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Affiliation(s)
- Sayaka Iizasa
- Analytical Research Center for Experimental Sciences, Saga University, Saga, Japan.,Department of Biological Resource Sciences, Graduate School of Agriculture, Saga University, Saga, Japan.,Department of Biological Science and Technology, The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan
| | - Ei'ichi Iizasa
- Department of Immunology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Keiichi Watanabe
- Department of Biological Resource Sciences, Graduate School of Agriculture, Saga University, Saga, Japan.,Department of Biological Science and Technology, The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan
| | - Yukio Nagano
- Analytical Research Center for Experimental Sciences, Saga University, Saga, Japan. .,Department of Biological Science and Technology, The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan.
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Le Berre JY, Gourgues M, Samans B, Keller H, Panabières F, Attard A. Transcriptome dynamic of Arabidopsis roots infected with Phytophthora parasitica identifies VQ29, a gene induced during the penetration and involved in the restriction of infection. PLoS One 2017; 12:e0190341. [PMID: 29281727 PMCID: PMC5744986 DOI: 10.1371/journal.pone.0190341] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 12/13/2017] [Indexed: 12/30/2022] Open
Abstract
Little is known about the responses of plant roots to filamentous pathogens, particularly to oomycetes. To assess the molecular dialog established between the host and the pathogen during early stages of infection, we investigated the overall changes in gene expression in A. thaliana roots challenged with P. parasitica. We analyzed various infection stages, from penetration and establishment of the interaction to the switch from biotrophy to necrotrophy. We identified 3390 genes for which expression was modulated during the infection. The A. thaliana transcriptome displays a dynamic response to P. parasitica infection, from penetration onwards. Some genes were specifically coregulated during penetration and biotrophic growth of the pathogen. Many of these genes have functions relating to primary metabolism, plant growth, and defense responses. In addition, many genes encoding VQ motif-containing proteins were found to be upregulated in plant roots, early in infection. Inactivation of VQ29 gene significantly increased susceptibility to P. parasitica during the late stages of infection. This finding suggests that the gene contributes to restricting oomycete development within plant tissues. Furthermore, the vq29 mutant phenotype was not associated with an impairment of plant defenses involving SA-, JA-, and ET-dependent signaling pathways, camalexin biosynthesis, or PTI signaling. Collectively, the data presented here thus show that infection triggers a specific genetic program in roots, beginning as soon as the pathogen penetrates the first cells.
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Affiliation(s)
| | | | - Birgit Samans
- Department of Plant Breeding, Institute of Agronomy and Plant Breeding, Giessen, Germany
| | | | | | - Agnes Attard
- INRA, Université Côte d'Azur, CNRS, ISA, France
- * E-mail:
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Jiang Z, He F, Zhang Z. Large-scale transcriptome analysis reveals arabidopsis metabolic pathways are frequently influenced by different pathogens. PLANT MOLECULAR BIOLOGY 2017; 94:453-467. [PMID: 28540497 DOI: 10.1007/s11103-017-0617-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 05/03/2017] [Indexed: 05/26/2023]
Abstract
Through large-scale transcriptional data analyses, we highlighted the importance of plant metabolism in plant immunity and identified 26 metabolic pathways that were frequently influenced by the infection of 14 different pathogens. Reprogramming of plant metabolism is a common phenomenon in plant defense responses. Currently, a large number of transcriptional profiles of infected tissues in Arabidopsis (Arabidopsis thaliana) have been deposited in public databases, which provides a great opportunity to understand the expression patterns of metabolic pathways during plant defense responses at the systems level. Here, we performed a large-scale transcriptome analysis based on 135 previously published expression samples, including 14 different pathogens, to explore the expression pattern of Arabidopsis metabolic pathways. Overall, metabolic genes are significantly changed in expression during plant defense responses. Upregulated metabolic genes are enriched on defense responses, and downregulated genes are enriched on photosynthesis, fatty acid and lipid metabolic processes. Gene set enrichment analysis (GSEA) identifies 26 frequently differentially expressed metabolic pathways (FreDE_Paths) that are differentially expressed in more than 60% of infected samples. These pathways are involved in the generation of energy, fatty acid and lipid metabolism as well as secondary metabolite biosynthesis. Clustering analysis based on the expression levels of these 26 metabolic pathways clearly distinguishes infected and control samples, further suggesting the importance of these metabolic pathways in plant defense responses. By comparing with FreDE_Paths from abiotic stresses, we find that the expression patterns of 26 FreDE_Paths from biotic stresses are more consistent across different infected samples. By investigating the expression correlation between transcriptional factors (TFs) and FreDE_Paths, we identify several notable relationships. Collectively, the current study will deepen our understanding of plant metabolism in plant immunity and provide new insights into disease-resistant crop improvement.
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Affiliation(s)
- Zhenhong Jiang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Fei He
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
- Biology Department, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Ziding Zhang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China.
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Plant cell wall signalling and receptor-like kinases. Biochem J 2017; 474:471-492. [PMID: 28159895 DOI: 10.1042/bcj20160238] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 12/12/2016] [Accepted: 12/20/2016] [Indexed: 12/12/2022]
Abstract
Communication between the extracellular matrix and the cell interior is essential for all organisms as intrinsic and extrinsic cues have to be integrated to co-ordinate development, growth, and behaviour. This applies in particular to plants, the growth and shape of which is governed by deposition and remodelling of the cell wall, a rigid, yet dynamic, extracellular network. It is thus generally assumed that cell wall surveillance pathways exist to monitor the state of the wall and, if needed, elicit compensatory responses such as altered expression of cell wall remodelling and biosynthesis genes. Here, I highlight recent advances in the field of cell wall signalling in plants, with emphasis on the role of plasma membrane receptor-like kinase complexes. In addition, possible roles for cell wall-mediated signalling beyond the maintenance of cell wall integrity are discussed.
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Xu Q, Xu X, Shi Y, Qi X, Chen X. Elucidation of the molecular responses of a cucumber segment substitution line carrying Pm5.1 and its recurrent parent triggered by powdery mildew by comparative transcriptome profiling. BMC Genomics 2017; 18:21. [PMID: 28056792 PMCID: PMC5217421 DOI: 10.1186/s12864-016-3438-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 12/19/2016] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Powdery mildew (PM) is one of the most severe fungal diseases of cucurbits, but the molecular mechanisms underlying PM resistance in cucumber remain elusive. In this study, we developed a PM resistant segment substitution line SSL508-28 that carried a segment on chromosome five representing the Pm5.1 locus from PM resistant donor Jin5-508 using marker-assisted backcrossing of an elite PM susceptible cucumber inbred line D8. RESULTS Whole-genome resequencing of SSL508-28, Jin5-508 and D8 was performed to identify the exact boundaries of the breakpoints for this introgression because of the low density of available single sequence repeat markers. This led to the identification of a ~6.8 Mb substituted segment predicted to contain 856 genes. RNA-seq was used to study gene expression differences in PM treated (plants harvested 48 h after inoculation) and untreated (control) SSL508-28 and D8 lines. Exactly 1,248 and 1,325 differentially expressed genes (DEGs) were identified in SSL508-28 and D8, respectively. Of those, 88 DEGs were located in the ~6.8 Mb segment interval. Based on expression data and annotation, we identified 8 potential candidate genes that may participate in PM resistance afforded by Pm5.1, including two tandemly arrayed genes encoding receptor protein kinases, two transcription factors, two genes encoding remorin proteins, one gene encoding a P-type ATPase and one gene encoding a 70 kDa heat shock protein. The transcriptome data also revealed a complex regulatory network for Pm5.1-mediated PM resistance that may involve multiple signal regulators and transducers, cell wall modifications and the salicylic acid signaling pathway. CONCLUSION These findings shed light on the cucumber PM defense mechanisms mediated by Pm5.1 and provided valuable information for the fine mapping of Pm5.1 and breeding of cucumber with enhanced resistance to PM.
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Affiliation(s)
- Qiang Xu
- Department of horticulture, School of horticulture and plant protection, Yangzhou University, 48 east wenhui road, Yangzhou, Jiangsu 225009 China
| | - Xuewen Xu
- Department of horticulture, School of horticulture and plant protection, Yangzhou University, 48 east wenhui road, Yangzhou, Jiangsu 225009 China
| | - Yang Shi
- Department of horticulture, School of horticulture and plant protection, Yangzhou University, 48 east wenhui road, Yangzhou, Jiangsu 225009 China
| | - Xiaohua Qi
- Department of horticulture, School of horticulture and plant protection, Yangzhou University, 48 east wenhui road, Yangzhou, Jiangsu 225009 China
| | - Xuehao Chen
- Department of horticulture, School of horticulture and plant protection, Yangzhou University, 48 east wenhui road, Yangzhou, Jiangsu 225009 China
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Dufayard JF, Bettembourg M, Fischer I, Droc G, Guiderdoni E, Périn C, Chantret N, Diévart A. New Insights on Leucine-Rich Repeats Receptor-Like Kinase Orthologous Relationships in Angiosperms. FRONTIERS IN PLANT SCIENCE 2017; 8:381. [PMID: 28424707 PMCID: PMC5380761 DOI: 10.3389/fpls.2017.00381] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 03/06/2017] [Indexed: 05/18/2023]
Abstract
Leucine-Rich Repeats Receptor-Like Kinase (LRR-RLK) genes represent a large and complex gene family in plants, mainly involved in development and stress responses. These receptors are composed of an LRR-containing extracellular domain (ECD), a transmembrane domain (TM) and an intracellular kinase domain (KD). To provide new perspectives on functional analyses of these genes in model and non-model plant species, we performed a phylogenetic analysis on 8,360 LRR-RLK receptors in 31 angiosperm genomes (8 monocots and 23 dicots). We identified 101 orthologous groups (OGs) of genes being conserved among almost all monocot and dicot species analyzed. We observed that more than 10% of these OGs are absent in the Brassicaceae species studied. We show that the ECD structural features are not always conserved among orthologs, suggesting that functions may have diverged in some OG sets. Moreover, we looked at targets of positive selection footprints in 12 pairs of OGs and noticed that depending on the subgroups, positive selection occurred more frequently either in the ECDs or in the KDs.
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Affiliation(s)
| | | | | | | | | | | | - Nathalie Chantret
- INRA, UMR AGAPMontpellier, France
- *Correspondence: Anne Diévart, Nathalie Chantret,
| | - Anne Diévart
- CIRAD, UMR AGAPMontpellier, France
- *Correspondence: Anne Diévart, Nathalie Chantret,
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Venkatesh J, Jahn M, Kang BC. Genome-Wide Analysis and Evolution of the Pto-Like Protein Kinase (PLPK) Gene Family in Pepper. PLoS One 2016; 11:e0161545. [PMID: 27536870 PMCID: PMC4990186 DOI: 10.1371/journal.pone.0161545] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 08/08/2016] [Indexed: 11/19/2022] Open
Abstract
The tomato Pto gene, which encodes a serine/threonine kinase (STK) domain-containing protein, confers resistance to bacterial speck disease caused by Pseudomonas syringae pv. tomato (Pst). In this study, in vivo recognition assays using PVX constructs showed that AvrPto was specifically recognized in the pepper genotypes. This AvrPto recognition caused a nonhost hypersensitive response (HR) and localization of the PVX::AvrPto fusion protein to inoculated pepper leaf tissues, which indicates the presence of a similar Pto recognition mechanism in pepper as in tomato. However, genome-wide analysis in pepper revealed no Pto clade corresponding to that in tomato, suggesting an alternative system for Pto recognition in pepper. Nevertheless, 25 Pto-like protein kinases (PLPKs) with a highly conserved STK domain have been identified in the pepper genome. For the majority of the amino acid sites in the STK domain of Ptos and PLPKs, nonsynonymous (dN) to synonymous (dS) nucleotide substitution ratios (ω) were less than one, suggesting that purifying selection played a predominant role in the evolutionary process. However, some amino acid sites were found to be subjected to episodic positive selection in the course of evolution of Pto homologs, and, thus, different evolutionary processes might have shaped the Pto gene family in plants. Based on RNA-seq data, PLPK genes and other Pto pathway genes, such as Prf, Pti1, Pti5, and Pti6 were expressed in all tested pepper genotypes. Therefore, the nonhost HR against Pst in pepper may be due to the recognition of the AvrPto effector by a PLPK homolog, and subsequent action of downstream components of the Pto signaling pathway. However, the possibility remains that the recognition of AvrPto in pepper plants may involve activities of other receptor like kinases (RLKs). The identification of the PLPKs in this study will serve as a foundation for further efforts to understand the roles of PLPKs in nonhost resistance.
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Affiliation(s)
- Jelli Venkatesh
- Department of Plant Science and Plant Genomics and Breeding Institute, Vegetable Breeding Research Center, Seoul National University, Seoul, 151–921, Korea
| | - Molly Jahn
- University of Wisconsin, Madison, Wisconsin, WI 53706, United States of America
| | - Byoung-Cheorl Kang
- Department of Plant Science and Plant Genomics and Breeding Institute, Vegetable Breeding Research Center, Seoul National University, Seoul, 151–921, Korea
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Magalhães DM, Scholte LLS, Silva NV, Oliveira GC, Zipfel C, Takita MA, De Souza AA. LRR-RLK family from two Citrus species: genome-wide identification and evolutionary aspects. BMC Genomics 2016; 17:623. [PMID: 27515968 PMCID: PMC4982124 DOI: 10.1186/s12864-016-2930-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 07/12/2016] [Indexed: 11/17/2022] Open
Abstract
Background Leucine-rich repeat receptor-like kinases (LRR-RLKs) represent the largest subfamily of plant RLKs. The functions of most LRR-RLKs have remained undiscovered, and a few that have been experimentally characterized have been shown to have important roles in growth and development as well as in defense responses. Although RLK subfamilies have been previously studied in many plants, no comprehensive study has been performed on this gene family in Citrus species, which have high economic importance and are frequent targets for emerging pathogens. In this study, we performed in silico analysis to identify and classify LRR-RLK homologues in the predicted proteomes of Citrus clementina (clementine) and Citrus sinensis (sweet orange). In addition, we used large-scale phylogenetic approaches to elucidate the evolutionary relationships of the LRR-RLKs and further narrowed the analysis to the LRR-XII group, which contains several previously described cell surface immune receptors. Results We built integrative protein signature databases for Citrus clementina and Citrus sinensis using all predicted protein sequences obtained from whole genomes. A total of 300 and 297 proteins were identified as LRR-RLKs in C. clementina and C. sinensis, respectively. Maximum-likelihood phylogenetic trees were estimated using Arabidopsis LRR-RLK as a template and they allowed us to classify Citrus LRR-RLKs into 16 groups. The LRR-XII group showed a remarkable expansion, containing approximately 150 paralogs encoded in each Citrus genome. Phylogenetic analysis also demonstrated the existence of two distinct LRR-XII clades, each one constituted mainly by RD and non-RD kinases. We identified 68 orthologous pairs from the C. clementina and C. sinensis LRR-XII genes. In addition, among the paralogs, we identified a subset of 78 and 62 clustered genes probably derived from tandem duplication events in the genomes of C. clementina and C. sinensis, respectively. Conclusions This work provided the first comprehensive evolutionary analysis of the LRR-RLKs in Citrus. A large expansion of LRR-XII in Citrus genomes suggests that it might play a key role in adaptive responses in host-pathogen co-evolution, related to the perennial life cycle and domestication of the citrus crop species. Electronic supplementary material The online version of this article (doi:10.1186/s12864-016-2930-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Diogo M Magalhães
- Instituto Agronômico, Centro de Citricultura Sylvio Moreira, Cordeirópolis, São Paulo, Brazil.,Departamento de Genética e Biologia Molecular, Universidade Estadual de Campinas, Campinas, São Paulo, Brazil
| | - Larissa L S Scholte
- Instituto Nacional de Ciência e Tecnologia em Doenças Tropicais, Grupo de Genômica e Biologia Computacional, Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
| | - Nicholas V Silva
- Instituto Agronômico, Centro de Citricultura Sylvio Moreira, Cordeirópolis, São Paulo, Brazil
| | - Guilherme C Oliveira
- Instituto Nacional de Ciência e Tecnologia em Doenças Tropicais, Grupo de Genômica e Biologia Computacional, Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil.,Instituto Tecnológico Vale - ITV, Belém, Pará, Brazil
| | - Cyril Zipfel
- The Sainsbury Laboratory, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Marco A Takita
- Instituto Agronômico, Centro de Citricultura Sylvio Moreira, Cordeirópolis, São Paulo, Brazil
| | - Alessandra A De Souza
- Instituto Agronômico, Centro de Citricultura Sylvio Moreira, Cordeirópolis, São Paulo, Brazil.
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Toljamo A, Blande D, Kärenlampi S, Kokko H. Reprogramming of Strawberry (Fragaria vesca) Root Transcriptome in Response to Phytophthora cactorum. PLoS One 2016; 11:e0161078. [PMID: 27518577 PMCID: PMC4982697 DOI: 10.1371/journal.pone.0161078] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 07/29/2016] [Indexed: 01/17/2023] Open
Abstract
Crown rot (Phytophthora cactorum) causes significant economic losses in strawberry production. The best control strategy would be to use resistant cultivars, but polygenically inherited resistance makes the breeding of the garden strawberry (Fragaria × ananassa) challenging. The diploid wild strawberry Fragaria vesca Hawaii 4 genotype was shown previously to have resistance against crown rot. To explore the resistance mechanisms, we inoculated the roots of Hawaii 4 with P. cactorum in a novel in vitro hydroponic system to minimize interference caused by other microbes. Major reprogramming of the root transcriptome occurred, involving 30% of the genes. The surveillance system of the plant shifted from the development mode to the defense mode. Furthermore, the immune responses as well as many genes involved in the biosynthesis of the defense hormones jasmonic acid, ethylene and salicylic acid were up-regulated. Several major allergen-like genes encoding PR-10 proteins were highly expressed in the inoculated plants, suggesting that they also have a crucial role in the defense responses against P. cactorum. Additionally, flavonoids and terpenoids may be of vital importance, as several genes involved in their biosynthesis were up-regulated. The cell wall biosynthesis and developmental processes were down-regulated, possibly as a result of the down-regulation of the key genes involved in the biosynthesis of growth-promoting hormones brassinosteroids and auxin. Of particular interest was the expression of potential resistance genes in the recently identified P. cactorum resistance locus RPc-1. These new findings help to target the breeding efforts aiming at more resistant strawberry cultivars.
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Affiliation(s)
- Anna Toljamo
- Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio, Finland
| | - Daniel Blande
- Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio, Finland
| | - Sirpa Kärenlampi
- Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio, Finland
| | - Harri Kokko
- Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio, Finland
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Rodiuc N, Barlet X, Hok S, Perfus-Barbeoch L, Allasia V, Engler G, Séassau A, Marteu N, de Almeida-Engler J, Panabières F, Abad P, Kemmerling B, Marco Y, Favery B, Keller H. Evolutionarily distant pathogens require the Arabidopsis phytosulfokine signalling pathway to establish disease. PLANT, CELL & ENVIRONMENT 2016; 39:1396-407. [PMID: 26290138 DOI: 10.1111/pce.12627] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 08/04/2015] [Accepted: 08/10/2015] [Indexed: 05/10/2023]
Abstract
Secreted peptides and their specific receptors frequently orchestrate cell-to-cell communication in plants. Phytosulfokines (PSKs) are secreted tyrosine-sulphated peptide hormones, which trigger cellular dedifferentiation and redifferentiation upon binding to their membrane receptor. Biotrophic plant pathogens frequently trigger the differentiation of host cells into specialized feeding structures, which are essential for successful infection. We found that oomycete and nematode infections were characterized by the tissue-specific transcriptional regulation of genes encoding Arabidopsis PSKs and the PSK receptor 1 (PSKR1). Subcellular analysis of PSKR1 distribution showed that the plasma membrane-bound receptor internalizes after binding of PSK-α. Arabidopsis pskr1 knockout mutants were impaired in their susceptibility to downy mildew infection. Impaired disease susceptibility depends on functional salicylic acid (SA) signalling, but not on the massive up-regulation of SA-associated defence-related genes. Knockout pskr1 mutants also displayed a major impairment of root-knot nematode reproduction. In the absence of functional PSKR1, giant cells arrested their development and failed to fully differentiate. Our findings indicate that the observed restriction of PSK signalling to cells surrounding giant cells contributes to the isotropic growth and maturation of nematode feeding sites. Taken together, our data suggest that PSK signalling in Arabidopsis promotes the differentiation of host cells into specialized feeding cells.
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Affiliation(s)
- Natalia Rodiuc
- INRA, Univ. Nice Sophia Antipolis, CNRS, UMR 1355-7254 Institut Sophia Agrobiotech, 06900, Sophia Antipolis, France
| | - Xavier Barlet
- Laboratoire des Interactions Plantes-Microorganismes, UMR CNRS 2594 - INRA 441, 31326, Castanet Tolosan, France
| | - Sophie Hok
- INRA, Univ. Nice Sophia Antipolis, CNRS, UMR 1355-7254 Institut Sophia Agrobiotech, 06900, Sophia Antipolis, France
| | - Laetitia Perfus-Barbeoch
- INRA, Univ. Nice Sophia Antipolis, CNRS, UMR 1355-7254 Institut Sophia Agrobiotech, 06900, Sophia Antipolis, France
| | - Valérie Allasia
- INRA, Univ. Nice Sophia Antipolis, CNRS, UMR 1355-7254 Institut Sophia Agrobiotech, 06900, Sophia Antipolis, France
| | - Gilbert Engler
- INRA, Univ. Nice Sophia Antipolis, CNRS, UMR 1355-7254 Institut Sophia Agrobiotech, 06900, Sophia Antipolis, France
| | - Aurélie Séassau
- INRA, Univ. Nice Sophia Antipolis, CNRS, UMR 1355-7254 Institut Sophia Agrobiotech, 06900, Sophia Antipolis, France
| | - Nathalie Marteu
- INRA, Univ. Nice Sophia Antipolis, CNRS, UMR 1355-7254 Institut Sophia Agrobiotech, 06900, Sophia Antipolis, France
| | - Janice de Almeida-Engler
- INRA, Univ. Nice Sophia Antipolis, CNRS, UMR 1355-7254 Institut Sophia Agrobiotech, 06900, Sophia Antipolis, France
| | - Franck Panabières
- INRA, Univ. Nice Sophia Antipolis, CNRS, UMR 1355-7254 Institut Sophia Agrobiotech, 06900, Sophia Antipolis, France
| | - Pierre Abad
- INRA, Univ. Nice Sophia Antipolis, CNRS, UMR 1355-7254 Institut Sophia Agrobiotech, 06900, Sophia Antipolis, France
| | - Birgit Kemmerling
- Department of Plant Biochemistry, Center for Plant Molecular Biology, University of Tübingen, 72076, Tübingen, Germany
| | - Yves Marco
- Laboratoire des Interactions Plantes-Microorganismes, UMR CNRS 2594 - INRA 441, 31326, Castanet Tolosan, France
| | - Bruno Favery
- INRA, Univ. Nice Sophia Antipolis, CNRS, UMR 1355-7254 Institut Sophia Agrobiotech, 06900, Sophia Antipolis, France
| | - Harald Keller
- INRA, Univ. Nice Sophia Antipolis, CNRS, UMR 1355-7254 Institut Sophia Agrobiotech, 06900, Sophia Antipolis, France
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Hanemian M, Barlet X, Sorin C, Yadeta KA, Keller H, Favery B, Simon R, Thomma BPHJ, Hartmann C, Crespi M, Marco Y, Tremousaygue D, Deslandes L. Arabidopsis CLAVATA1 and CLAVATA2 receptors contribute to Ralstonia solanacearum pathogenicity through a miR169-dependent pathway. THE NEW PHYTOLOGIST 2016; 211:502-15. [PMID: 26990325 DOI: 10.1111/nph.13913] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Accepted: 01/22/2016] [Indexed: 05/21/2023]
Abstract
Bacterial wilt caused by Ralstonia solanacearum is one of the most destructive bacterial plant diseases. Although many molecular determinants involved in R. solanacearum adaptation to hosts and pathogenesis have been described, host components required for disease establishment remain poorly characterized. Phenotypical analysis of Arabidopsis mutants for leucine-rich repeat (LRR)-receptor-like proteins revealed that mutations in the CLAVATA1 (CLV1) and CLAVATA2 (CLV2) genes confer enhanced disease resistance to bacterial wilt. We further investigated the underlying mechanisms using genetic, transcriptomic and molecular approaches. The enhanced resistance of both clv1 and clv2 mutants to the bacteria did not require the well characterized CLV signalling modules involved in shoot meristem homeostasis, and was conditioned by neither salicylic acid nor ethylene defence-related hormones. Gene expression microarray analysis performed on clv1 and clv2 revealed deregulation of genes encoding nuclear transcription factor Y subunit alpha (NF-YA) transcription factors whose post-transcriptional regulation is known to involve microRNAs from the miR169 family. Both clv mutants showed a defect in miR169 accumulation. Conversely, overexpression of miR169 abrogated the resistance phenotype of clv mutants. We propose that CLV1 and CLV2, two receptors involved in CLV3 perception during plant development, contribute to bacterial wilt through a signalling pathway involving the miR169/NF-YA module.
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Affiliation(s)
- Mathieu Hanemian
- Laboratoire des Interactions Plantes-Microorganismes (LIPM), INRA, UMR441, Chemin de Borde Rouge, F-31326, Castanet-Tolosan, France
- Laboratoire des Interactions Plantes-Microorganismes (LIPM), CNRS, UMR2594, Chemin de Borde Rouge, F-31326, Castanet-Tolosan, France
| | - Xavier Barlet
- Laboratoire des Interactions Plantes-Microorganismes (LIPM), INRA, UMR441, Chemin de Borde Rouge, F-31326, Castanet-Tolosan, France
- Laboratoire des Interactions Plantes-Microorganismes (LIPM), CNRS, UMR2594, Chemin de Borde Rouge, F-31326, Castanet-Tolosan, France
| | - Céline Sorin
- CNRS, Institut des Sciences du Végétal, Saclay Plant Sciences, UPR2355, 91198, Gif-sur-Yvette, France
| | - Koste A Yadeta
- Laboratory of Phytopathology, Wageningen University, Droevendaalsesteeg 1, 6708 PB, Wageningen, the Netherlands
| | - Harald Keller
- INRA, Univ. Nice Sophia Antipolis, CNRS, UMR 1355-7254 Institut Sophia Agrobiotech, 06900, Sophia Antipolis, France
| | - Bruno Favery
- INRA, Univ. Nice Sophia Antipolis, CNRS, UMR 1355-7254 Institut Sophia Agrobiotech, 06900, Sophia Antipolis, France
| | - Rüdiger Simon
- Institut für Entwicklungsgenetik, Heinrich-Heine-Universität, Universitätstr. 1, 40225, Düsseldorf, Germany
| | - Bart P H J Thomma
- Laboratory of Phytopathology, Wageningen University, Droevendaalsesteeg 1, 6708 PB, Wageningen, the Netherlands
| | - Caroline Hartmann
- Université Paris Diderot, 5 rue Thomas Mann, 75205, Paris Cedex 13, France
| | - Martin Crespi
- CNRS, Institut des Sciences du Végétal, Saclay Plant Sciences, UPR2355, 91198, Gif-sur-Yvette, France
| | - Yves Marco
- Laboratoire des Interactions Plantes-Microorganismes (LIPM), INRA, UMR441, Chemin de Borde Rouge, F-31326, Castanet-Tolosan, France
- Laboratoire des Interactions Plantes-Microorganismes (LIPM), CNRS, UMR2594, Chemin de Borde Rouge, F-31326, Castanet-Tolosan, France
| | - Dominique Tremousaygue
- Laboratoire des Interactions Plantes-Microorganismes (LIPM), INRA, UMR441, Chemin de Borde Rouge, F-31326, Castanet-Tolosan, France
- Laboratoire des Interactions Plantes-Microorganismes (LIPM), CNRS, UMR2594, Chemin de Borde Rouge, F-31326, Castanet-Tolosan, France
| | - Laurent Deslandes
- Laboratoire des Interactions Plantes-Microorganismes (LIPM), INRA, UMR441, Chemin de Borde Rouge, F-31326, Castanet-Tolosan, France
- Laboratoire des Interactions Plantes-Microorganismes (LIPM), CNRS, UMR2594, Chemin de Borde Rouge, F-31326, Castanet-Tolosan, France
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Portieles R, Canales E, Chacon O, Silva Y, Hernández I, López Y, Rodríguez M, Terauchi R, Matsumura H, Borroto C, Walton JD, Santos R, Borrás-Hidalgo O. Expression of a Nicotiana tabacum pathogen-induced gene is involved in the susceptibility to black shank. FUNCTIONAL PLANT BIOLOGY : FPB 2016; 43:534-541. [PMID: 32480483 DOI: 10.1071/fp15350] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 03/22/2016] [Indexed: 06/11/2023]
Abstract
Many host genes induced during compatible plant-pathogen interactions constitute targets of pathogen virulence factors that act to suppress host defenses. In order to identify Nicotiana tabacum L. genes for pathogen-induced proteins involved in susceptibility to the oomycete Phytophthora parasitica var. nicotianae, we used SuperSAGE technology combined with next-generation sequencing to identify transcripts that were differentially upregulated during a compatible interaction. We identified a pathogen-induced gene (NtPIP) that was rapidly induced only during the compatible interaction. Virus-induced gene silencing of NtPIP reduced the susceptibility of N. tabacum to P. parasitica var. nicotianae. Additionally, transient expression of NtPIP in the resistant species Nicotiana megalosiphon Van Heurck & Mull. Arg. compromised the resistance to P. parasitica var. nicotianae. This pathogen-induced protein is therefore a positive regulator of the susceptibility response against an oomycete pathogen in tobacco.
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Affiliation(s)
- Roxana Portieles
- Centre for Genetic Engineering and Biotechnology, PO Box 6162, Havana, 10600, Cuba
| | - Eduardo Canales
- Centre for Genetic Engineering and Biotechnology, PO Box 6162, Havana, 10600, Cuba
| | - Osmani Chacon
- Tobacco Research Institute, Carretera de Tumbadero 8, PO Box 6063, Havana, Cuba
| | - Yussuan Silva
- Tobacco Research Institute, Carretera de Tumbadero 8, PO Box 6063, Havana, Cuba
| | - Ingrid Hernández
- Centre for Genetic Engineering and Biotechnology, PO Box 6162, Havana, 10600, Cuba
| | - Yunior López
- Centre for Genetic Engineering and Biotechnology, PO Box 6162, Havana, 10600, Cuba
| | - Mayra Rodríguez
- Centre for Genetic Engineering and Biotechnology, PO Box 6162, Havana, 10600, Cuba
| | - Ryohei Terauchi
- Iwate Biotechnology Research Centre, Kitakami, Iwate, 024-0003, Japan
| | - Hideo Matsumura
- Gene Research Center, Shinshu University, Ueda 386-8567, Japan
| | - Carlos Borroto
- Centro de Investigación Científica de Yucatán, Calle 43 No. 130, Colonia Chuburná de Hidalgo, 97200 Mérida, Yucatán, México
| | - Jonathan D Walton
- Department of Energy Plant Research Laboratory, Michigan State University, East Lansing, USA 48824
| | - Ramon Santos
- Centro de Bioplantas, Carretera de Morón Km 9, Ciego de Avila, C. P. 69450, Cuba
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Tunc-Ozdemir M, Urano D, Jaiswal DK, Clouse SD, Jones AM. Direct Modulation of Heterotrimeric G Protein-coupled Signaling by a Receptor Kinase Complex. J Biol Chem 2016; 291:13918-13925. [PMID: 27235398 DOI: 10.1074/jbc.c116.736702] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Indexed: 01/17/2023] Open
Abstract
Plants and some protists have heterotrimeric G protein complexes that activate spontaneously without canonical G protein-coupled receptors (GPCRs). In Arabidopsis, the sole 7-transmembrane regulator of G protein signaling 1 (AtRGS1) modulates the G protein complex by keeping it in the resting state (GDP-bound). However, it remains unknown how a myriad of biological responses is achieved with a single G protein modulator. We propose that in complete contrast to G protein activation in animals, plant leucine-rich repeat receptor-like kinases (LRR RLKs), not GPCRs, provide this discrimination through phosphorylation of AtRGS1 in a ligand-dependent manner. G protein signaling is directly activated by the pathogen-associated molecular pattern flagellin peptide 22 through its LRR RLK, FLS2, and co-receptor BAK1.
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Affiliation(s)
- Meral Tunc-Ozdemir
- Department of Biology, University of North Carolina, Chapel Hill, North Carolina 27599
| | - Daisuke Urano
- Department of Biology, University of North Carolina, Chapel Hill, North Carolina 27599
| | - Dinesh Kumar Jaiswal
- Department of Biology, University of North Carolina, Chapel Hill, North Carolina 27599
| | - Steven D Clouse
- Department of Horticultural Science, North Carolina State University, Raleigh, North Carolina 27695-7609
| | - Alan M Jones
- Department of Biology, University of North Carolina, Chapel Hill, North Carolina 27599; Department of Pharmacology, University of North Carolina, Chapel Hill, North Carolina 27599.
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He H, Zhu S, Jiang Z, Ji Y, Wang F, Zhao R, Bie T. Comparative mapping of powdery mildew resistance gene Pm21 and functional characterization of resistance-related genes in wheat. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2016; 129:819-829. [PMID: 26791837 DOI: 10.1007/s00122-016-2668-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 01/09/2016] [Indexed: 05/09/2023]
Abstract
The powdery mildew resistance gene Pm21 was physically and comparatively mapped by newly developed markers. Seven candidate genes were verified to be required for Pm21 -mediated resistance to wheat powdery mildew. Pm21, a gene derived from wheat wild relative Dasypyrum villosum, has been transferred into common wheat and widely utilized in wheat resistance breeding for powdery mildew. Previously, Pm21 has been located to the bin FL0.45-0.58 of 6VS by using deletion stocks. However, its fine mapping is still a hard work. In the present study, 30 gene-derived 6VS-specific markers were obtained based on the collinearity among genomes of Brachypodium distachyon, Oryza and Triticeae, and then physically and comparatively mapped in the bin FL0.45-0.58 and its nearby chromosome region. According to the maps, the bin FL0.45-0.58 carrying Pm21 was closely flanked by the markers 6VS-03 and 6VS-23, which further narrowed the orthologous regions to 1.06 Mb in Brachypodium and 1.38 Mb in rice, respectively. Among the conserved genes shared by Brachypodium and rice, four serine/threonine protein kinase genes (DvMPK1, DvMLPK, DvUPK and DvPSYR1), one protein phosphatase gene (DvPP2C) and two transcription factor genes (DvGATA and DvWHY) were confirmed to be required for Pm21-mediated resistance to wheat powdery mildew by barley stripe mosaic virus-induced gene silencing (BSMV-VIGS) and transcriptional pattern analyses. In summary, this study gives new insights into the genetic basis of the Pm21 locus and the disease resistance pathways mediated by Pm21.
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Affiliation(s)
- Huagang He
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu, China.
- Key Laboratory of Wheat Biology and Genetic Improvement On Low and Middle Yangtze River Valley Wheat Region (Ministry of Agriculture), Yangzhou Academy of Agricultural Sciences, Yangzhou, 225007, Jiangsu, China.
| | - Shanying Zhu
- School of Environment, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Zhengning Jiang
- Key Laboratory of Wheat Biology and Genetic Improvement On Low and Middle Yangtze River Valley Wheat Region (Ministry of Agriculture), Yangzhou Academy of Agricultural Sciences, Yangzhou, 225007, Jiangsu, China
| | - Yaoyong Ji
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Feng Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Renhui Zhao
- Key Laboratory of Wheat Biology and Genetic Improvement On Low and Middle Yangtze River Valley Wheat Region (Ministry of Agriculture), Yangzhou Academy of Agricultural Sciences, Yangzhou, 225007, Jiangsu, China
| | - Tongde Bie
- Key Laboratory of Wheat Biology and Genetic Improvement On Low and Middle Yangtze River Valley Wheat Region (Ministry of Agriculture), Yangzhou Academy of Agricultural Sciences, Yangzhou, 225007, Jiangsu, China.
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