PRJNA761507
Panax notoginseng Raw sequence reads
Applying bioorganic fertilizer could alleviate (a)biotic stresses and increase crop productivity. The effect of bioorganic fertilizer on relationship between rhizosphere bacterial community of Panax notoginseng and soil metabolism remains unknown. Here, we tracked changes in soil physicochemical properties, bacterial microbiota responses and soil metabolic functions after addition of bioorganic fertilizer compared to non-fertilizer treatment. Bioorganic fertilizer reduced soil acidification, improved organic matter and increased the contents of total/available soil nutrients. Soil amendment of bioorganic fertilizer significantly affected rhizosphere bacterial community structure leading to the enrichment of specific bacterial consortia such as, Rhodanobacter, Arthrobacter, Sphingomonas, Devosia, Pseudolabrys, Luteimonas, Lysobacter, Nitrosospira and Nakamurella, in the rhizosphere of P. notoginseng. Previously, many of these genera have been reported to be associated with nutrient cycling, plant productivity and disease suppression. Metabolome analysis further highlighted that the class of phenolic acids and flavonoids, especially the compounds p-Coumaric acid and caffeic acid, were highly abundant in the rhizosphere of P. notoginseng grown in non-fertilizer treatments, suggesting the poor plant performance due to a(biotic) stresses. However, organic acids, saccharides and alcohols, and amino acids were highly abundant in bioorganic fertilizer treatment along with low level of phenolic acids and flavonoids, indicating good survival of bacterial microbiota in the rhizosphere and sufficient available nutrients for P. notoginseng growth. Our results provide evidence that bioorganic fertilizer significantly improves soil health status, changes soil metabolic functions and stimulates a specific subset of rhizosphere microbiota for nutrient cycling and disease protection.