Overexpression of PeHKT1;1 Improves Salt Tolerance in Populus.

ABSTRACT: Soil salinization is an increasingly serious threat that limits plant growth and development. Class I transporters of the high-affinity K⁺ transporter (HKT) family have been demonstrated to be involved in salt tolerance by contributing to Na⁺ exclusion from roots and shoots. Here, we isolated the PeHKT1;1 gene from hybrid poplar based on the sequences of the Populus trichocarpa genome. The full-length PeHKT1;1 gene was 2173 bp, including a 1608 bp open reading frame (ORF) encoding 535 amino acids and containing eight distinct transmembrane domains. Multiple sequence alignment and phylogenetic analysis suggested that the PeHKT1;1 protein had a typical S⁻G⁻G⁻G signature for the P-loop domains and belonged to class I of HKT transporters. PeHKT1;1 transcripts were m

SUBMITTER: Xu M 

PROVIDER: S-EPMC6210203 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature