Metabolic Changes of Soyasaponins Leaf Content in Soybean Plants Under Potassium Starved

Potassium nutrition is associated with plants that are more resistant to biotic and abiotic stresses. We investigated metabolic changes in soybean plants grown under four potassium (K+) soil fertilization rates. Untargeted metabolomic analysis revealed that soyasaponins contents are responsive to K+ status in soybean leaves and acts as phytoalexin when chemometrics analysis showed higher levels of DDMP-soyasaponins evidently accumulated in trifoliate leaves severely K+ deficient.