Application of CrUGT72B3 gene or related biological materials thereof in improving stress resistance of plants

The invention relates to the technical field of biology, in particular to application of a CrUGT72B3 gene or related biological materials thereof to improvement of plant stress resistance. The biological material is an expression cassette containing the CrUGT72B3 gene, a recombinant vector, a recombinant bacterium or a transgenic cell line, and the sequence of the CrUGT72B3 gene is as shown in SEQ ID NO. 1. According to the application disclosed by the invention, salt tolerance evaluation is carried out on arabidopsis thaliana seeds and seedlings in which the CrUGT72B3 gene is overexpressed, and the fact that the salt sensitivity of arabidopsis thaliana is improved by the CrUGT72B3 gene is found. Meanwhile, in salt stress overexpression of the CrUGT72B3 gene in arabidopsis thaliana, the expression of a stress response related gene and the expression of a phenylpropane metabolic pathway related gene are obviously lower than those of a wild type, and it is speculated that the CrUGT72B3 gene can influence the sa