大豆(Glycinemax)(V3阶段)用AgO纳米颗粒(NPs)喷洒一次,B,CeO,CuO,MnO,MoO3,SiO,TiO,或ZnO并暴露于镰刀菌,猝死综合症的原因。在温室实验中观察到高达80%的根腐病。然而,NPCuO,B,MoO3或ZnO将根腐病的严重程度降低了17-25%。感染的根和芽在B,Mg,P,S,Si,Zn,但是NP治疗恢复到健康对照的水平。例如,NPB和Mn改良法逆转了病害引起的根系Mg和Mn含量的增加。体外测定发现NP不抑制病原体。这个,随着植物组织中改变的营养水平的恢复,表明调制的植物营养增加了疾病防御。用纳米级微量营养素处理幼苗可能是促进大豆健康的新工具。
Soybeans (Glycine max) (V3 stage) were sprayed once with nanoparticles (NPs) of AgO, B, CeO, CuO, MnO, MoO3, SiO, TiO, or ZnO and exposed to Fusarium virguliforme, the cause of sudden death syndrome. Up to 80% root rot was observed in greenhouse experiments. However, NP CuO, B, MoO3, or ZnO reduced the root rot severity by 17-25%. Infected roots and shoots had significant changes in B, Mg, P, S, Si, and Zn, but NP treatment restored levels to that of the healthy control. For example, the increased root Mg and Mn contents induced by disease were reversed by NP B and Mn amendments. In vitro assays found that the NPs did not inhibit the pathogen. This, along with the restoration of altered nutrient levels in the plant tissue, suggests that modulated plant nutrition increased disease defense. Treatment of seedlings with nanoscale micronutrients may be a new tool in promoting soybean health.