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- Title
Salt tolerance conferred by overexpression of a vacuolar Na+/H+ antiport in Arabidopsis.
- Authors
Apse, M P; Aharon, G S; Snedden, W A; Blumwald, E
- Abstract
Agricultural productivity is severely affected by soil salinity. One possible mechanism by which plants could survive salt stress is to compartmentalize sodium ions away from the cytosol. Overexpression of a vacuolar Na+/H+ antiport from Arabidopsis thaliana in Arabidopsis plants promotes sustained growth and development in soil watered with up to 200 millimolar sodium chloride. This salinity tolerance was correlated with higher-than-normal levels of AtNHX1 transcripts, protein, and vacuolar Na+/H+ (sodium/proton) antiport activity. These results demonstrate the feasibility of engineering salt tolerance in plants.
- Publication
Science (New York, N.Y.), 1999, Vol 285, Issue 5431, p1256
- ISSN
0036-8075
- Publication type
Journal Article
- DOI
10.1126/science.285.5431.1256