| 摘要 |
PROBLEM TO BE SOLVED: To obtain a new thionine gene having improving effects on salt stress resistance of plant, capable of contributing to agricultural production, comprising a gene encoding a specific amino acid sequence or a gene having homology to the gene on an amino acid base. SOLUTION: This new thionine gene is a gene encoding an amino acid sequence of the formula or a gene having >=70% homology to the gene on an amino acid base, has improving effects on salt stress resistance of plant, is effective for improving salt resistance of plant and consequently is capable of contributing agricultural production. The new thionine gene is obtained by extracting the whole RNA from a green leaf tissue of Nicotiana excelsior subjected to salt stress, separating a mRNA by a routine procedure, preparing a cDNA library using the mRNA and screening the library by a differential screening method. |
