Project description
Plant ubiquitinome dynamics and proteasome activation after viral infection
The degradation of cellular proteins (proteolysis) via ubiquitin-proteasome system (UPS) is a highly complex and tightly regulated process that is important in cellular processes including plant immunity and antiviral defence. The interplay between UPS and plant viruses is poorly understood and increasingly important considering the impacts of climate change and globalisation on viral diseases that affect the world’s food crops. With the support of the Marie Skłodowska-Curie Actions programme, the VIRUPS project aims to shed light on this. It plans to characterise plant ubiquitinome dynamics after infection with three different viruses to identify common and virus-specific responses. It will also investigate proteasome activation and correlations with disease intensity indicators.
Objective
The ubiquitin-proteasome system (UPS) is the primary eukaryotic pathway for selective protein degradation and plays a central role in various cellular processes, including plant immunity and antiviral defense. The UPS is a double-edged sword as it provides important services to viral infections but likewise is part of orchestrating a proper immune response, both driving virus evolution towards UPS manipulation and exploitation. Despite this exiting constellation, the interplay between UPS and plant viruses has remained poorly studied. Along increased globalization in agriculture and the ongoing climate change, new viral diseases affecting various crops have emerged globally with negative socioeconomic impacts. The VIRUPS project will be conducted at the Swedish University of Agricultural Sciences (SLU) under Dr. Hafrn's supervision, aiming to address the knowledge gap in the UPS-virus interplay in plants. Our preliminary data shows that plant viruses enhance proteasome activity and induce different changes to UPS components and ubiquitination, together conveying a detailed response of the UPS to viruses. The project will characterize plant ubiquitinome dynamics upon infection with three different viruses in comparative virology to identify virus common and specific responses with details on differentially ubiquitinated proteins (DUPs) and targeted cellular pathways. A parallel approach will exploit one of our viruses (CaMV) capacity to activate the proteasome, because this phenotype shows wide variation among Arabidopsis natural accessions. This offers an exceptional opportunity to address correlations between proteasome activation and various disease intensity parameters, in addition to forming the basis for a genome-wide association study (GWAS) for identifying UPS regulators. UPS regulators, components, and targets obtained through this diverse set of approaches, will fuel the discovery of novel UPS-related mechanisms in disease and crop protection strategies.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences biological sciences microbiology virology
- natural sciences biological sciences biochemistry biomolecules proteins
- agricultural sciences agriculture, forestry, and fisheries agriculture
- social sciences other social sciences development studies development theories global development studies globalization
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
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Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) HORIZON-MSCA-2023-PF-01
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
750 07 Uppsala
Sweden
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