Light Stress-dependent Elicition of Soil Disease Suppressive Mediated by Root Flavonoids Secretion_2

Suboptimal low and high light stresses alleviated root rot disease in P. notoginseng by enriching the rhizosphere beneficial microbiota. Both low and high light stresses enhanced the secondary metabolism profile, particularly the flavonoid pathway, in fibrous roots. Notably, high light stress demonstrates a robust ability to promote flavonoid metabolism and secretion, resulting in the enrichment of more beneficial microbiota for the suppression of soil-borne pathogens.