The invention discloses a pugionium cornutum cation-Cl-co-
transporter protein coding
gene PcCCC1 and application thereof. The
nucleotide sequence of the cation-Cl-co-
transporter protein coding
gene PcCCC1 is as shown in SEQ ID No.1, the
amino acid sequence of the coding
protein of the cation-Cl-co-
transporter protein coding gene PcCCC1 is as shown in SEQ ID No.2, and the sequence of a specific
promoter of the cation-Cl-co-transporter
protein coding gene PcCCC1 is as shown in SEQ ID No.3. The invention further discloses an application of the cation-Cl-co-transporter
protein coding gene PcCCC1. Experiments prove that after the gene is driven by a specific
promoter of the gene to be overexpressed in
arabidopsis thaliana, accumulation of Na < + > and Cl <-> of the overground part under salt stress can be reduced, so that the salt tolerance of the
plant is improved, a gene resource is provided for improvement of the salt tolerance of the
plant, and the gene has a wide application value.