Physiological and molecular response of soybean to combined drought and heat stresses during flowering.

ABSTRACT:

Background

Soybean (Glycine max. L, Willam 82) is an essential crop for nutrition and biodiesel, but its yield is highly vulnerable to drought and heat stress, especially during flowering. Combined stresses are more frequently encountered than individual stresses in the field, exerting more severe and distinct physiological impacts on plant growth and development.

Results

To elucidate the underlying mechanisms, we conducted comparative physiological, biochemical, and transcriptomic analyses on reproductive stage soybeans under individual and combined drought and heat (DH) stress conditions. The results indicated significant reductions in stomatal conductance, transpiration rate, photosynthesis, and water potential under DH stress. Notably, 9441 differentially expressed genes

SUBMITTER: Xia C 

PROVIDER: S-EPMC12910819 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature