Skip to main content
European Commission logo
italiano italiano
CORDIS - Risultati della ricerca dell’UE
CORDIS
CORDIS Web 30th anniversary CORDIS Web 30th anniversary

Investigation of host factors regulating virus proliferation in plant stem cells and germline

Descrizione del progetto

Comprensione a livello molecolare della proliferazione dei virus nelle piante

I virus vegetali rappresentano una minaccia significativa per l’agricoltura, pertanto il loro studio è fondamentale per il controllo delle malattie delle piante. Nonostante gli elevati tassi di replicazione nei tessuti somatici, alcuni virus vengono esclusi dalle cellule staminali e dalla progenie, indicando un efficiente meccanismo di difesa antivirale. Finanziato dal programma di azioni Marie Skłodowska-Curie, il progetto VirITAS cerca di scoprire le basi molecolari di questo meccanismo, concentrandosi sull’interferenza dell’RNA e sugli ormoni vegetali come fattori cardine. Utilizzando l’analisi trascrittomica dei gameti e gli studi di associazione genomica, i ricercatori sperano di identificare i candidati regolatori e i polimorfismi genomici che influenzano l’esclusione del virus e la trasmissione dei semi. Le conoscenze acquisite potrebbero rivoluzionare le strategie antivirali in agricoltura.

Obiettivo

With this proposal I will address a long-known but still not understood phenomenon in plant virology. Despite extreme replication rates in infected somatic tissues, many plant viruses are excluded from stem cells in the shoot apical meristem and subsequently from the progeny of flowering plants, suggesting that reproductive cells possess an exceptionally efficient antiviral defense. Yet some viruses overcome this barrier and pose a substantial agricultural risk of spreading viral diseases through seeds over great distances. Insight into the molecular basis of virus exclusion from stem cells and germline/progeny is therefore of utmost importance. Recent work by the host group leader indicates that RNA interference and plant defense hormones prevent viruses from entering the meristematic stem cells. If this exclusion is sufficient to prevent virus entry to the germline, which factors restrict seed transmission of different viruses, and at what stage of development they are relevant, will be addressed in this action by two independent unbiased screens. First, I will identify candidates regulating virus exclusion from plant germlines and vertical transmission by performing cell-specific transcriptomic analysis of gametes from healthy and infected plants aiming to identify enriched and depleted transcripts suggesting involvement of their products in antiviral defense. Second, I will compare viral seed transmission rates in natural accessions of Arabidopsis to perform a genome-wide association study and identify underlying genomic polymorphisms. The proposed work is expected to deliver ground-breaking insight into the mechanisms of transgenerational antiviral defense and novel mechanisms of antiviral immunity, with a high potential to contribute to disease control in plants.

Campo scientifico (EuroSciVoc)

CORDIS classifica i progetti con EuroSciVoc, una tassonomia multilingue dei campi scientifici, attraverso un processo semi-automatico basato su tecniche NLP.

È necessario effettuare l’accesso o registrarsi per utilizzare questa funzione

Coordinatore

MAX-PLANCK-GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN EV
Contribution nette de l'UE
€ 173 847,36
Indirizzo
HOFGARTENSTRASSE 8
80539 Munchen
Germania

Mostra sulla mappa

Regione
Bayern Oberbayern München, Kreisfreie Stadt
Tipo di attività
Research Organisations
Collegamenti
Costo totale
Nessun dato