<i>GmNMHC5</i> Modulates Gibberellin Homeostasis to Balance Carbon-Nitrogen Metabolism and Enhance Protein Yield in Soybean.

ABSTRACT: Soybean, a vital source of high-quality plant-based protein and oil, continues to be a focal crop for improving yield and quality. Gibberellins (GAs), as key regulators of plant growth and development, hold significant potential for enhancing these traits in soybean. In this study, previously developed GmNMHC5 mutant lines were utilized to assess GA levels, photosynthetic capacity, carbohydrate and nitrogen accumulation, as well as yield and quality characteristics during the seed-filling stage. Knockout of GmNMHC5 was found to enhance endogenous GA biosynthesis, resulting in increased plant height and improved carbon and nitrogen metabolism. These physiological changes contributed to significant increases in both seed weight and size, leading to higher accumulation of carboh

SUBMITTER: Chen X 

PROVIDER: S-EPMC12329567 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature