Improving salt tolerance in potato through overexpression of AtHKT1 gene.

ABSTRACT:

Background

Survival of plants in response to salinity stress is typically related to Na⁺ toxicity, but little is known about how heterologous high-affinity potassium transporter (HKT) may help alleviate salt-induced damages in potato (Solanum tuberosum L.).

Results

In this study, we used the Arabidopsis thaliana high-affinity potassium transporter gene (AtHKT1) to enhance the capacity of potato plants to tolerate salinity stress by decreasing Na⁺ content and improving K⁺/Na⁺ ratio in plant leaves, while maintaining osmotic balance. Seven AtHKT1 transformed potato lines (namely T1, T2, T3, T5, T11, T13 and T15) were compared with non-transgenic control plant at molecule and whole-plant levels. The lines T3 and T13 had the highest At

SUBMITTER: Wang L 

PROVIDER: S-EPMC6697938 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature