RESULTS: The results indicated that P. polymyxa and B. cereus co-bacterial agent (PB) treatment improved ginseng yield, ginsenoside accumulation, disease prevention, and pesticide degradation. The mechanism is that PB treatment increased the abundance of beneficial microorganisms, including Rhodanobacter, Pseudolabrys, Gemmatimonas, Bacillus, Paenibacillus, Cortinarius, Russula, Paecilomyces, and Trechispora, and decreased the abundance of pathogenic microorganisms, including Ellin6067, Acidibacter, Fusarium, Tetracladium, Alternaria, and Ilyonectria in ginseng rhizosphere soil. PB co-bacterial agents enhanced the function of microbial metabolic pathways, biosynthesis of secondary metabolites, biosynthesis of antibiotics, biosynthesis of amino acids, carbon fixation pathways in prokaryotes, DNA replication, and terpenoid backbone biosynthesis, and decreased the function of microbial plant pathogens and animal pathogens.
CONCLUSIONS: The combination of P. polymyxa and B. cereus may be a potential biocontrol agent to promote the resistance of ginseng to disease and improve the yield, quality, and pesticide degradation.
结果:结果表明,多粘菌和蜡样芽孢杆菌(PB)处理提高了人参产量,人参皂苷积累,疾病预防,和农药降解。其机制是PB处理增加了有益微生物的丰度,包括罗丹菌,伪装者,Gemmatatimonas,芽孢杆菌,拟芽孢杆菌,Cortinarius,Russula,拟青霉,和Trechispora,减少了病原微生物的丰度,包括Ellin6067酸性杆菌,镰刀菌,四片,Alternaria,人参根际土壤中的Ilyonectria。PB助细菌剂增强了微生物代谢途径的功能,次级代谢产物的生物合成,抗生素的生物合成,氨基酸的生物合成,原核生物的碳固定途径,DNA复制,和萜类骨架生物合成,并降低了微生物植物病原体和动物病原体的功能。
结论:多粘菌和蜡样芽孢杆菌的组合可能是促进人参抗病性和提高产量的潜在生物防治剂,质量,和农药降解。