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Osborne R, Rehneke L, Lehmann S, Roberts J, Altmann M, Altmann S, Zhang Y, Köpff E, Dominguez-Ferreras A, Okechukwu E, Sergaki C, Rich-Griffin C, Ntoukakis V, Eichmann R, Shan W, Falter-Braun P, Schäfer P. Symbiont-host interactome mapping reveals effector-targeted modulation of hormone networks and activation of growth promotion. Nat Commun 2023; 14:4065. [PMID: 37429856 DOI: 10.1038/s41467-023-39885-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 06/27/2023] [Indexed: 07/12/2023] Open
Abstract
Plants have benefited from interactions with symbionts for coping with challenging environments since the colonisation of land. The mechanisms of symbiont-mediated beneficial effects and similarities and differences to pathogen strategies are mostly unknown. Here, we use 106 (effector-) proteins, secreted by the symbiont Serendipita indica (Si) to modulate host physiology, to map interactions with Arabidopsis thaliana host proteins. Using integrative network analysis, we show significant convergence on target-proteins shared with pathogens and exclusive targeting of Arabidopsis proteins in the phytohormone signalling network. Functional in planta screening and phenotyping of Si effectors and interacting proteins reveals previously unknown hormone functions of Arabidopsis proteins and direct beneficial activities mediated by effectors in Arabidopsis. Thus, symbionts and pathogens target a shared molecular microbe-host interface. At the same time Si effectors specifically target the plant hormone network and constitute a powerful resource for elucidating the signalling network function and boosting plant productivity.
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Affiliation(s)
- Rory Osborne
- School of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK
- School of Biosciences, University of Birmingham, Edgbaston, B15 2TT, UK
| | - Laura Rehneke
- Institute of Phytopathology, Research Centre for BioSystems, Land Use and Nutrition, Justus Liebig University, 35392, Giessen, Germany
| | - Silke Lehmann
- School of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK
- Laboratory of Biotechnology and Marine Chemistry LBCM, EA3884, IUEM, Southern Brittany University, 56000, Vannes, France
| | - Jemma Roberts
- School of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK
| | - Melina Altmann
- Institute of Network Biology, Molecular Targets and Therapeutics Center, Helmholtz Munich, 85764, Munich-Neuherberg, Germany
| | - Stefan Altmann
- Institute of Network Biology, Molecular Targets and Therapeutics Center, Helmholtz Munich, 85764, Munich-Neuherberg, Germany
| | - Yingqi Zhang
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, 712100, China
| | - Eva Köpff
- Institute of Molecular Botany, Ulm University, 89069, Ulm, Germany
| | | | - Emeka Okechukwu
- School of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK
| | - Chrysi Sergaki
- School of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK
| | | | - Vardis Ntoukakis
- School of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK
| | - Ruth Eichmann
- Institute of Phytopathology, Research Centre for BioSystems, Land Use and Nutrition, Justus Liebig University, 35392, Giessen, Germany
| | - Weixing Shan
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, 712100, China
| | - Pascal Falter-Braun
- Institute of Network Biology, Molecular Targets and Therapeutics Center, Helmholtz Munich, 85764, Munich-Neuherberg, Germany.
- Microbe-Host Interactions, Faculty of Biology, Ludwig-Maximilians-University München, 82152, Planegg-Martinsried, Germany.
| | - Patrick Schäfer
- Institute of Phytopathology, Research Centre for BioSystems, Land Use and Nutrition, Justus Liebig University, 35392, Giessen, Germany.
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Xu ZX, Zhu XM, Yin H, Li B, Chen XJ, Fan XL, Li NQ, Selosse MA, Gao JY, Han JJ. Symbiosis between Dendrobium catenatum protocorms and Serendipita indica involves the plant hypoxia response pathway. PLANT PHYSIOLOGY 2023; 192:2554-2568. [PMID: 36988071 PMCID: PMC10315314 DOI: 10.1093/plphys/kiad198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 03/07/2023] [Accepted: 03/08/2023] [Indexed: 06/19/2023]
Abstract
Mycorrhizae are ubiquitous symbioses established between fungi and plant roots. Orchids, in particular, require compatible mycorrhizal fungi for seed germination and protocorm development. Unlike arbuscular mycorrhizal fungi, which have wide host ranges, orchid mycorrhizal fungi are often highly specific to their host orchids. However, the molecular mechanism of orchid mycorrhizal symbiosis is largely unknown compared to that of arbuscular mycorrhizal and rhizobial symbiosis. Here, we report that an endophytic Sebacinales fungus, Serendipita indica, promotes seed germination and the development of protocorms into plantlets in several epiphytic Epidendroideae orchid species (6 species in 2 genera), including Dendrobium catenatum, a critically endangered orchid with high medicinal value. Although plant-pathogen interaction and high meristematic activity can induce the hypoxic response in plants, it has been unclear whether interactions with beneficial fungi, especially mycorrhizal ones, also involve the hypoxic response. By studying the symbiotic relationship between D. catenatum and S. indica, we determined that hypoxia-responsive genes, such as those encoding alcohol dehydrogenase (ADH), are highly induced in symbiotic D. catenatum protocorms. In situ hybridization assay indicated that the ADH gene is predominantly expressed in the basal mycorrhizal region of symbiotic protocorms. Additionally, the ADH inhibitors puerarin and 4-methylpyrazole both decreased S. indica colonization in D. catenatum protocorms. Thus, our study reveals that S. indica is widely compatible with orchids and that ADH and its related hypoxia-responsive pathway are involved in establishing successful symbiotic relationships in germinating orchids.
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Affiliation(s)
- Zhi-Xiong Xu
- Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology, Institute of Biodiversity, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, China
- Ministry of Education Key Laboratory for Transboundary Ecosecurity of Southwest China, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650500, China
| | - Xin-Meng Zhu
- Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology, Institute of Biodiversity, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, China
- Ministry of Education Key Laboratory for Transboundary Ecosecurity of Southwest China, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650500, China
| | - Huachun Yin
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, China
| | - Bo Li
- College of Life Sciences, Chongqing Normal University, Chongqing 401331, China
| | - Xiao-Jie Chen
- Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology, Institute of Biodiversity, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, China
- Ministry of Education Key Laboratory for Transboundary Ecosecurity of Southwest China, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650500, China
| | - Xu-Li Fan
- Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology, Institute of Biodiversity, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, China
- Ministry of Education Key Laboratory for Transboundary Ecosecurity of Southwest China, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650500, China
| | - Neng-Qi Li
- Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology, Institute of Biodiversity, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, China
- Ministry of Education Key Laboratory for Transboundary Ecosecurity of Southwest China, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650500, China
| | - Marc-André Selosse
- Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology, Institute of Biodiversity, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, China
- Institut de Systématique, Évolution, Biodiversité (UMR 7205-CNRS, MNHN, UPMC, EPHE), Muséum national d'Histoire naturelle, Sorbonne Universités, 57 rue Cuvier, 75005 Paris, France
- University of Gdańsk, Faculty of Biology, ul. Wita Stwosza 59, 80-308 Gdańsk, Poland
- Institut Universitaire de France (IUF), Paris, France
| | - Jiang-Yun Gao
- Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology, Institute of Biodiversity, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, China
- Ministry of Education Key Laboratory for Transboundary Ecosecurity of Southwest China, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650500, China
| | - Jia-Jia Han
- Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology, Institute of Biodiversity, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, China
- Ministry of Education Key Laboratory for Transboundary Ecosecurity of Southwest China, State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650500, China
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Priyashantha AKH, Dai DQ, Bhat DJ, Stephenson SL, Promputtha I, Kaushik P, Tibpromma S, Karunarathna SC. Plant-Fungi Interactions: Where It Goes? BIOLOGY 2023; 12:809. [PMID: 37372094 DOI: 10.3390/biology12060809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 05/29/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023]
Abstract
Fungi live different lifestyles-including pathogenic and symbiotic-by interacting with living plants. Recently, there has been a substantial increase in the study of phytopathogenic fungi and their interactions with plants. Symbiotic relationships with plants appear to be lagging behind, although progressive. Phytopathogenic fungi cause diseases in plants and put pressure on survival. Plants fight back against such pathogens through complicated self-defense mechanisms. However, phytopathogenic fungi develop virulent responses to overcome plant defense reactions, thus continuing their deteriorative impacts. Symbiotic relationships positively influence both plants and fungi. More interestingly, they also help plants protect themselves from pathogens. In light of the nonstop discovery of novel fungi and their strains, it is imperative to pay more attention to plant-fungi interactions. Both plants and fungi are responsive to environmental changes, therefore construction of their interaction effects has emerged as a new field of study. In this review, we first attempt to highlight the evolutionary aspect of plant-fungi interactions, then the mechanism of plants to avoid the negative impact of pathogenic fungi, and fungal strategies to overcome the plant defensive responses once they have been invaded, and finally the changes of such interactions under the different environmental conditions.
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Affiliation(s)
- A K Hasith Priyashantha
- Center for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing 655011, China
| | - Dong-Qin Dai
- Center for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing 655011, China
| | - Darbhe J Bhat
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
- Biology Division, Vishnugupta Vishwavidyapeetam, Gokarna 581326, India
| | - Steven L Stephenson
- Department of Biological Sciences, University of Arkansas, Fayetteville, AR 72701, USA
| | - Itthayakorn Promputtha
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Prashant Kaushik
- Instituto de ConservaciónyMejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, 46022 Valencia, Spain
| | - Saowaluck Tibpromma
- Center for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing 655011, China
| | - Samantha C Karunarathna
- Center for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing 655011, China
- National Institute of Fundamental Studies (NIFS), Hantana Road, Kandy 20000, Sri Lanka
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Xia X, Tang CM, Chen GZ, Han JJ. Proteasome Dysfunction Leads to Suppression of the Hypoxic Response Pathway in Arabidopsis. Int J Mol Sci 2022; 23:ijms232416148. [PMID: 36555789 PMCID: PMC9785350 DOI: 10.3390/ijms232416148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 12/05/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
Proteasome is a large proteolytic complex that consists of a 20S core particle (20SP) and 19S regulatory particle (19SP) in eukaryotes. The proteasome degrades most cellular proteins, thereby controlling many key processes, including gene expression and protein quality control. Proteasome dysfunction in plants leads to abnormal development and reduced adaptability to environmental stresses. Previous studies have shown that proteasome dysfunction upregulates the gene expression of proteasome subunits, which is known as the proteasome bounce-back response. However, the proteasome bounce-back response cannot explain the damaging effect of proteasome dysfunction on plant growth and stress adaptation. To address this question, we focused on downregulated genes caused by proteasome dysfunction. We first confirmed that the 20SP subunit PBE is an essential proteasome subunit in Arabidopsis and that PBE1 mutation impaired the function of the proteasome. Transcriptome analyses showed that hypoxia-responsive genes were greatly enriched in the downregulated genes in pbe1 mutants. Furthermore, we found that the pbe1 mutant is hypersensitive to waterlogging stress, a typical hypoxic condition, and hypoxia-related developments are impaired in the pbe1 mutant. Meanwhile, the 19SP subunit rpn1a mutant seedlings are also hypersensitive to waterlogging stress. In summary, our results suggested that proteasome dysfunction downregulated the hypoxia-responsive pathway and impaired plant growth and adaptability to hypoxia stress.
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Affiliation(s)
- Xue Xia
- Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology, Institute of Biodiversity, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, China
| | - Chun-Meng Tang
- Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology, Institute of Biodiversity, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, China
| | - Gu-Zi Chen
- Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology, Institute of Biodiversity, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, China
| | - Jia-Jia Han
- Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology, Institute of Biodiversity, School of Ecology and Environmental Science, Yunnan University, Kunming 650500, China
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650500, China
- Correspondence:
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