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Galli M, Jacob S, Zheng Y, Ghezellou P, Gand M, Albuquerque W, Imani J, Allasia V, Coustau C, Spengler B, Keller H, Thines E, Kogel KH. MIF-like domain containing protein orchestrates cellular differentiation and virulence in the fungal pathogen Magnaporthe oryzae. iScience 2023; 26:107565. [PMID: 37664630 PMCID: PMC10474474 DOI: 10.1016/j.isci.2023.107565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 05/20/2023] [Accepted: 08/03/2023] [Indexed: 09/05/2023] Open
Abstract
Macrophage migration inhibitory factor (MIF) is a pleiotropic protein with chemotactic, pro-inflammatory, and growth-promoting activities first discovered in mammals. In parasites, MIF homologs are involved in immune evasion and pathogenesis. Here, we present the first comprehensive analysis of an MIF protein from the devastating plant pathogen Magnaporthe oryzae (Mo). The fungal genome encodes a single MIF protein (MoMIF1) that, unlike the human homolog, harbors multiple low-complexity regions (LCRs) and is unique to Ascomycota. Following infection, MoMIF1 is expressed in the biotrophic phase of the fungus, and is strongly down-regulated during subsequent necrotrophic growth in leaves and roots. We show that MoMIF1 is secreted during plant infection, affects the production of the mycotoxin tenuazonic acid and inhibits plant cell death. Our results suggest that MoMIF1 is a novel key regulator of fungal virulence that maintains the balance between biotrophy and necrotrophy during the different phases of fungal infection.
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Affiliation(s)
- Matteo Galli
- Institute of Phytopathology, Research Centre for BioSystems, Land Use and Nutrition, Justus Liebig University Giessen, Heinrich-Buff-Ring 26, 35392 Giessen, Germany
| | - Stefan Jacob
- Institute of Biotechnology and Drug Research GmbH, Hanns-Dieter-Hüsch-Weg 17, 55128 Mainz, Germany
| | - Ying Zheng
- Institute of Phytopathology, Research Centre for BioSystems, Land Use and Nutrition, Justus Liebig University Giessen, Heinrich-Buff-Ring 26, 35392 Giessen, Germany
| | - Parviz Ghezellou
- Institute of Inorganic and Analytical Chemistry, Justus Liebig University Giessen, Heinrich-Buff-Ring 17, 35392, Giessen, Germany
| | - Martin Gand
- Institute of Food Chemistry and Food Biotechnology, Justus Liebig University Giessen, Heinrich-Buff-Ring 17, 35392, Giessen, Germany
| | - Wendell Albuquerque
- Institute of Food Chemistry and Food Biotechnology, Justus Liebig University Giessen, Heinrich-Buff-Ring 17, 35392, Giessen, Germany
| | - Jafargholi Imani
- Institute of Phytopathology, Research Centre for BioSystems, Land Use and Nutrition, Justus Liebig University Giessen, Heinrich-Buff-Ring 26, 35392 Giessen, Germany
| | - Valérie Allasia
- Université Côte d'Azur, INRAE, CNRS, UMR1355-7254, ISA, 06903 Sophia Antipolis, France
| | - Christine Coustau
- Université Côte d'Azur, INRAE, CNRS, UMR1355-7254, ISA, 06903 Sophia Antipolis, France
| | - Bernhard Spengler
- Institute of Inorganic and Analytical Chemistry, Justus Liebig University Giessen, Heinrich-Buff-Ring 17, 35392, Giessen, Germany
| | - Harald Keller
- Université Côte d'Azur, INRAE, CNRS, UMR1355-7254, ISA, 06903 Sophia Antipolis, France
| | - Eckhard Thines
- Institute of Biotechnology and Drug Research GmbH, Hanns-Dieter-Hüsch-Weg 17, 55128 Mainz, Germany
- Johannes Gutenberg-University Mainz, Microbiology and Biotechnology at the Institute of Molecular Physiology, Hanns-Dieter-Hüsch-Weg 17, 55128 Mainz, Germany
| | - Karl-Heinz Kogel
- Institute of Phytopathology, Research Centre for BioSystems, Land Use and Nutrition, Justus Liebig University Giessen, Heinrich-Buff-Ring 26, 35392 Giessen, Germany
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Wang L, Yang J, Tan W, Guo Y, Li J, Duan C, Wei G, Chou M. Macrophage migration inhibitory factor MtMIF3 prevents the premature aging of Medicago truncatula nodules. PLANT, CELL & ENVIRONMENT 2023; 46:1004-1017. [PMID: 36515398 DOI: 10.1111/pce.14515] [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: 05/13/2022] [Revised: 12/01/2022] [Accepted: 12/09/2022] [Indexed: 06/17/2023]
Abstract
Macrophage migration inhibitory factor (MIF) is a proinflammatory cytokine involved in immune response in animals. However, the role of MIFs in plants such as Medicago truncatula, particularly in symbiotic nitrogen fixation, remains unclear. An investigation of M. truncatula-Sinorhizobium meliloti symbiosis revealed that MtMIF3 was mainly expressed in the nitrogen-fixing zone of the nodules. Silencing MtMIF3 using RNA interference (Ri) technology resulted in increased nodule numbers but higher levels of bacteroid degradation in the infected cells of the nitrogen-fixing zone, suggesting that premature aging was induced in MtMIF3-Ri nodules. In agreement with this conclusion, the activities of nitrogenase, superoxide dismutase and catalase were lower than those in controls, but cysteine proteinase activity was increased in nodulated roots at 28 days postinoculation. In contrast, the overexpression of MtMIF3 inhibited nodule senescence. MtMIF3 is localized in the plasma membrane, nucleus, and cytoplasm, where it interacts with methionine sulfoxide reductase B (MsrB), which is also localized in the chloroplasts of tobacco leaf cells. Taken together, these results suggest that MtMIF3 prevents premature nodule aging and protects against oxidation by interacting with MtMsrB.
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Affiliation(s)
- Li Wang
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Jieyu Yang
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Wenjun Tan
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Yile Guo
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Jiaqi Li
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Chuntao Duan
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Gehong Wei
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Minxia Chou
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
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Campos MD, Félix MDR. Advances in Plant-Pathogen Interaction: New Challenges for Sustainable Disease Management. BIOLOGY 2023; 12:biology12020203. [PMID: 36829483 PMCID: PMC9953138 DOI: 10.3390/biology12020203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 01/26/2023] [Indexed: 01/31/2023]
Abstract
Plant pathogens cause huge losses and have been an important constraint to a worldwide increase in crop production and productivity [...].
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Affiliation(s)
- Maria Doroteia Campos
- MED—Mediterranean Institute for Agriculture, Environment and Development & CHANGE—Global Change and Sustainability Institute, Institute for Advanced Studies and Research, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
- Correspondence:
| | - Maria do Rosário Félix
- MED—Mediterranean Institute for Agriculture, Environment and Development & CHANGE—Global Change and Sustainability Institute, Departamento de Fitotecnia, Escola de Ciências e Tecnologia, Universidade de Évora, Pólo da Mitra, Ap. 94, 7006-554 Évora, Portugal
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Salgado FF, da Silva TLC, Vieira LR, Silva VNB, Leão AP, Costa MMDC, Togawa RC, de Sousa CAF, Grynberg P, Souza MT. The early response of oil palm ( Elaeis guineensis Jacq.) plants to water deprivation: Expression analysis of miRNAs and their putative target genes, and similarities with the response to salinity stress. FRONTIERS IN PLANT SCIENCE 2022; 13:970113. [PMID: 36212369 PMCID: PMC9539919 DOI: 10.3389/fpls.2022.970113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 08/25/2022] [Indexed: 06/09/2023]
Abstract
Oil palm (Elaeis guineensis Jacq.) is a oilseed crop of great economic importance drastically affected by abiotic stresses. MicroRNAs (miRNAs) play crucial roles in transcription and post-transcription regulation of gene expression, being essential molecules in the response of plants to abiotic stress. To better understand the molecular mechanisms behind the response of young oil palm plants to drought stress, this study reports on the prediction and characterization of miRNAs and their putative target genes in the apical leaf of plants subjected to 14 days of water deprivation. Then, the data from this study were compared to the data from a similar study that focused on salinity stress. Both, the drought-and salt-responsive miRNAs and their putative target genes underwent correlation analysis to identify similarities and dissimilarities among them. Among the 81 identified miRNAs, 29 are specific for oil palm, including two (egu-miR28ds and egu-miR29ds) new ones - described for the first time. As for the expression profile, 62 miRNAs were significantly differentially expressed under drought stress, being five up-regulated (miR396e, miR159b, miR529b, egu-miR19sds, and egu-miR29ds) and 57 down-regulated. Transcription factors, such as MYBs, HOXs, and NF-Ys, were predicted as putative miRNA-target genes in oil palm under water deprivation; making them the most predominant group of such genes. Finally, the correlation analysis study revealed a group of putative target genes with similar behavior under salt and drought stresses. Those genes that are upregulated by these two abiotic stresses encode lncRNAs and proteins linked to stress tolerance, stress memory, modulation of ROS signaling, and defense response regulation to abiotic and biotic stresses. In summary, this study provides molecular evidence for the possible involvement of miRNAs in the drought stress response in oil palm. Besides, it shows that, at the molecular level, there are many similarities in the response of young oil palm plants to these two abiotic stresses.
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Affiliation(s)
| | | | - Letícia Rios Vieira
- Graduate Program of Plant Biotechnology, Federal University of Lavras, Lavras, MG, Brazil
| | | | - André Pereira Leão
- The Brazilian Agricultural Research Corporation, Embrapa Agroenergy, Brasília, DF, Brazil
| | - Marcos Mota do Carmo Costa
- The Brazilian Agricultural Research Corporation, Embrapa Genetic Resources and Biotechnology, Brasília, DF, Brazil
| | - Roberto Coiti Togawa
- The Brazilian Agricultural Research Corporation, Embrapa Genetic Resources and Biotechnology, Brasília, DF, Brazil
| | | | - Priscila Grynberg
- The Brazilian Agricultural Research Corporation, Embrapa Genetic Resources and Biotechnology, Brasília, DF, Brazil
| | - Manoel Teixeira Souza
- Graduate Program of Plant Biotechnology, Federal University of Lavras, Lavras, MG, Brazil
- The Brazilian Agricultural Research Corporation, Embrapa Agroenergy, Brasília, DF, Brazil
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