Project description
How plants learn to live with viruses
Plant viruses can be destructive, causing losses in agricultural crops. However, in wild plants, the same virus may accumulate without inducing disease symptoms. With this in mind, the EU-funded TolGreen project explores the natural mechanisms that allow certain plants to tolerate viruses such as tobacco mosaic virus (TMV) and oilseed rape mosaic virus (ORMV). By studying how these viruses interact with Arabidopsis plants at the molecular level, the project aims to identify the genetic and protein factors that enable this resilience. Using molecular genetics and proteomics, TolGreen’s goal is to uncover how plants can maintain health despite infection, paving the way for breeding virus-tolerant crops.
Objective
Viral diseases cause severe damage to cultivated plants, resulting in global crop losses. In the wild, however, plants are typically free of viral disease symptoms despite recurrent infection. Naturally tolerant plants have a significant viral load, but their growth, development and reproduction are only minimally affected. The aim of the TolGreen project is to identify viral and host determinants of tolerance by using Arabidopsis-infecting RNA viruses such as Tobacco mosaic virus (TMV) and the related Oilseed rape mosaic virus (ORMV) as models. Certain natural accessions of A. thaliana (Col-0) are tolerant to TMV whereas other ecotypes (Sha) show disease. By contrast, Col-0 plants infected with ORMV are initially symptomatic but develop tolerance in the new leaves. The host laboratory demonstrated that this latter tolerance phenotype depends on genes required for the production of primary and secondary siRNAs and also correlates with the loss of the activity of the viral RNA silencing suppressor (VSR). The tobamoviral VSR proteins inhibit antiviral RNA silencing by sequestration of small interfering RNAs (siRNAs), which inhibits the assembly of the antiviral RNA-induced silencing complex (RISC). Therefore, tolerance may occur when the VSR siRNA binding activity is saturated by host- or virus-derived siRNAs. Using the latest tools of molecular genetics and proteomics, TolGreen will determine Arabidopsis genes, viral and host-derived siRNAs as well as VSR-interacting proteins that control VSR activity and are involved in tolerance. Understanding the molecular mechanism of tolerance will provide important tools for the breeding of resilient, virus-tolerant crops for a more sustainable agriculture.
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 biochemistry biomolecules proteins proteomics
- natural sciences biological sciences microbiology virology
- agricultural sciences agriculture, forestry, and fisheries agriculture grains and oilseeds oilseeds
- natural sciences biological sciences genetics RNA
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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)
MAIN PROGRAMME
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Topic(s)
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.
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
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.
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
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) HORIZON-MSCA-2022-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.
75794 Paris
France
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.