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Improving stress memory and salt tolerance in barley

Descrizione del progetto

Migliorare la memoria dello stress e la tolleranza al sale delle colture

Gli stress ripetuti forniscono alle piante una memoria per aumentare la tolleranza, ma i meccanismi alla base di questo processo non sono stati ben compresi. Il progetto SaToBa, finanziato dall’UE, esaminerà il ruolo degli ormoni a base vegetale, chiamati giasmonati, nel priming della memoria dello stress salino nell’orzo, uno dei più importanti cereali al mondo per impiego alimentare, malto e alimenti per animali. Inoltre, stabilirà l’adattamento allo stress salino attivato dai giasmonati e i meccanismi di bilanciamento dell’adattamento allo stress e della crescita. SaToBa si avvarrà dell’impiego della genetica e della genomica per migliorare la tolleranza al sale, stabilendo la correlazione tra trascrittoma e translatoma nel corso della crescita (inibizione) associata all’adattamento allo stress. Inoltre, caratterizzerà la dipendenza delle risposte dai cambiamenti epigenetici e il recettore COI1 di giasmonato dell’orzo non caratterizzato.

Obiettivo

The improvement of crop salt tolerance is a pressing agricultural challenge because salt stress poses a major threat to global food supply. The problem is topical in India where salinity-induced yield losses are increasing for several crops. Compelling evidence indicates that repeated stresses provide a memory to increase tolerance, but the mechanisms are not well understood. This project studies the role of jasmonates (JAs) in priming salt stress memory in barley, one of the most important cereals worldwide for food, malt and animal feed. The main objective is to determine how JAs prime plant salt stress tolerance to overcome the limits imposed on growth and yield. The study will enable the effective use of genetics and genomics to improve salt tolerance by 1) determining the correlation between transcriptome and translatome during growth (inhibition) associated with stress adaptation; 2) characterization of the dependency of the responses from epigenetic changes and the uncharacterized barley JAs receptor COI1, and from the ribosome inactivating protein JIP60. The research will characterize, (A) JAs-primed salt stress adaptation; (B) the mechanisms balancing stress adaptation and growth.
To achieve the aims, controlled JAs/salt stress will be applied to monitor organ growth. Growth and cell cycle analyses, alongside RNA-Seq, genome-wide analysis of mRNA translation during development and analysis of specific histone markers will be performed. This will demonstrate how poised gene expression and translation work together to set up stress memory. Plant response to salinity and its impact on yield and metabolism will also be analyzed. This multidisciplinary project will enhance the researcher career prospects when returning to India to establish their own lab continuing work in the same area. Overall, the success of this research will be applicable to other economically important crops worldwide with positive impact on the cultivation of crops during climate change.

Campo scientifico (EuroSciVoc)

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

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Coordinatore

ROYAL HOLLOWAY AND BEDFORD NEW COLLEGE
Contribution nette de l'UE
€ 224 933,76
Indirizzo
EGHAM HILL UNIVERSITY OF LONDON
TW20 0EX Egham
Regno Unito

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Tipo di attività
Higher or Secondary Education Establishments
Collegamenti
Costo totale
€ 224 933,76