Characterization of rice KT/HAK/KUP potassium transporters and K⁺ uptake by HAK1 from Oryza sativa.

ABSTRACT: Plant high-affinity K⁺ (HAK) transporters are divided into four major clusters. Cluster I transporters, in particular, are thought to have high-affinity for K⁺. Of the 27 HAK genes in rice, eight HAK transporters belong to cluster I. In this study, we investigated the temporal expression patterns during K⁺ deficiency and K⁺ transport activity of these eight HAK transporters. The expression of seven HAK genes except OsHAK20 was detected. Expression of OsHAK1, OsHAK5 and OsHAK21 was induced in response to K⁺ deficiency; however, that of other genes was not. Six of the eight HAK transporters-OsHAK1, OsHAK5, OsHAK19, OsHAK20, OsHAK21, and OsHAK27-complemented the K⁺-transporter-deficient

SUBMITTER: Okada T 

PROVIDER: S-EPMC6879396 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature