Biotechnology Bulletin ›› 2025, Vol. 41 ›› Issue (3): 90-97.doi: 10.13560/j.cnki.biotech.bull.1985.2024-0435

Previous Articles     Next Articles

Functional Analysis of Soybean GmPM31 Gene Promoter Involvement in Response to High Temperature and Humidity Stress

LIN Zi-yi1,2(), WU Yi-zhou1, YE Fang-xian1, ZHU Shu-ying1, LIU Yan-min1, LIU Su-shuang1()   

  1. 1.Institute of Life and Health, Huzhou College, Huzhou 313000
    2.Institute of Life and Environmental Sciences, Wenzhou University, Wenzhou 325000
  • Received:2024-05-09 Online:2025-03-26 Published:2025-03-20
  • Contact: LIU Su-shuang E-mail:m17280305141@163.com;liu@zjhzu.edu.cn

Abstract:

Objective To study the function of GmPM31 promoter on seed vigor formation in response to high temperature and high humidity stress, and to lay a foundation for comprehensively unravelling the function of soybean small heat shock proteins involved in the response to high temperature and high humidity stress. Method Homozygous T3 transgenic Arabidopsis thaliana with GmPM31 promoter was treated with high temperature and high humidity stress (40℃/100% relative humidity), and wild-type A. thaliana was used as control to detect its tolerance and stomatal opening. Analysis of GUS gene expression driven by the soybean GmPM31 promoter by GUS histochemical staining and quantitative real-time PCR. The seed vigor was detected by 2, 3, 5-triphenyltetrazolium chloride (TTC) staining. Result Compared with the control group, the tolerance of GmPM31-transgenicpromotor A. thaliana to high temperature and high humidity increased. The activity of GUS increased, and they were expressed in the leaves, roots and flowers, and germination rate and vigor increased. Conclusion GmPM31 promoter improve the resistance of seeds to high temperature and high humidity stress and the ability to resist deterioration.

Key words: soybean, promoter, high temperature and high humidity, seed vigor