Rice Na⁺ absorption mediated by OsHKT2;1 affected Cs⁺ translocation from root to shoot under low K⁺ environments.

ABSTRACT: ¹³⁷Cs diffused into the environment due to a nuclear power plant accident has caused serious problems for safe crop production. In plants, Cs⁺ is similar in its ionic form to K⁺. Cs⁺ is absorbed and transported mainly by the K⁺ transport mechanism. However, the full picture of the genes contributing to Cs⁺ transport and the transport mechanism of rice is still unclear. This study focused on OsHKT2;1, a candidate Cs⁺ transporter under low K⁺ conditions. To verify the ability of OsHKT2;1 to transport Cs⁺, the OsHKT2;1 mutant (hkt2;1) was grown in a ¹³⁷Cs-contaminated paddy field in Fukushima. The ¹³⁷Cs concentration in hkt2;1 aboveground was higher tha

SUBMITTER: Kanno S 

PROVIDER: S-EPMC11518805 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature