Ostmt1 gene involved in vacuolar sugar transport from rice

PURPOSE: An Oryza sativa L.-derived OsTMT1 gene is provided to detect a novel gene relating to plant growth, development, and environmental stress. CONSTITUTION: An Oryza sativa L.-derived OsTMT1(Oryza sativa tonoplast monosaccharide transporter 1) relating vaculolar sugar transport contains an amino acid sequence of sequence number 2. A gene encoding OsTMT1 protein contains a base sequence of sequence number 1. A recombinant vector contains the OsTMT1 gene. A transgenic plant is prepared using the recombinant vector. The plant is Oryza sativa L. or Arabidopsis thaliana. A composition for enhancing vacuolar sugar transport contains OsTMT1 gene.