Ion transport and signal transduction pathways contributing to salt tolerance in plants

Informazioni relative al progetto

ID dell’accordo di sovvenzione: BIO4960775

Progetto chiuso

Data di avvio 1 Ottobre 1996

Data di completamento 30 Settembre 1999

Finanziato da

• Specific research, technological development and demonstration programme in the field of biotechnology, 1994-1998

Costo totale

Nessun dato

Contributo UE

Nessun dato

Coordinato da

ROTHAMSTED RESEARCH LIMITED
United Kingdom

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Risultati finali

A plant gene promoter directing specific expression in root pericycle and xylem parenchyma cells

A promoter directing expression of genes in cells of the stelar tissue of plant roots has been isolated. It normally directs the expression of a stelar-specific potassium channel and is strongly down regulated by water stress. It is exploitable to direct the expression of other genes in the stelar cells of plant roots. The promoter directs the expression of the Arabidopsis SKOR (Stelar K Outward Rectifier) gene that encodes a potassium channel that is important in loading potassium into the xylem. The gene is down-regulated by water stress and the plant hormone abscisic acid. Its cell specificity has been shown using the gus reporter gene.