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

被引：1474

作者：

Apse, MP ^{[1
]}

Aharon, GS ^{[1
]}

Snedden, WA ^{[1
]}

Blumwald, E ^{[1
]}

机构：

[1] Univ Toronto, Dept Bot, Toronto, ON M5S 3B2, Canada

来源：

SCIENCE | 1999年 / 285卷 / 5431期

关键词：

D O I：

10.1126/science.285.5431.1256

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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.

引用

页码：1256 / 1258

页数：3

共 18 条

[1]

APSE MP, 1998, P 11 INT WORKSH PLAN, P84

[2] Physiology of ion transport across the tonoplast of higher plants [J].