Co-expression of SpSOS1 and SpAHA1 in transgenic Arabidopsis plants improves salinity tolerance.

ABSTRACT:

Background

Na⁺ extrusion from cells is important for plant growth in high saline environments. SOS1 (salt overly sensitive 1), an Na⁺/H⁺ antiporter located in the plasma membrane (PM), functions in toxic Na⁺ extrusion from cells using energy from an electrochemical proton gradient produced by a PM-localized H⁺-ATPase (AHA). Therefore, SOS1 and AHA are involved in plant adaption to salt stress.

Results

In this study, the genes encoding SOS1 and AHA from the halophyte Sesuvium portulacastrum (SpSOS1 and SpAHA1, respectively) were introduced together or singly into Arabidopsis plants. The results indicated that either SpSOS1 or SpAHA1 conferred salt tolerance to transgenic plants and, as expected, Arabidopsis plants express

SUBMITTER: Fan Y 

PROVIDER: S-EPMC6376693 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature