Salt tolerance conferred by overexpression of a vacuolar Na+/H+ antiport in Arabidopsis

Citation
Mp. Apse et al., Salt tolerance conferred by overexpression of a vacuolar Na+/H+ antiport in Arabidopsis, SCIENCE, 285(5431), 1999, pp. 1256-1258
Citations number
18
Categorie Soggetti
Multidisciplinary,Multidisciplinary,Multidisciplinary
Journal title
SCIENCE
ISSN journal
00368075 → ACNP
Volume
285
Issue
5431
Year of publication
1999
Pages
1256 - 1258
Database
ISI
SICI code
0036-8075(19990820)285:5431<1256:STCBOO>2.0.ZU;2-T
Abstract
Agricultural productivity is severely affected by soil salinity, One possib le mechanism by which plants could survive salt stress is to compartmentali ze sodium ions away from the cytosol. Overexpression of a vacuolar Na+/H+ a ntiport from Arabidopsis thaliana in Arabidopsis plants promotes sustained growth and development in soil watered with up to 200 millimolar sodium chl oride. This salinity tolerance was correlated with higher-than-normal level s of AtNHX1 transcripts, protein, and vacuolar Na+/H+ (sodium/proton) antip ort activity, These results demonstrate the feasibility of engineering salt tolerance in plants.