Metalloid and metal oxide nanoparticles suppress Sudden Death Syndrome of soybean
Metalloid and metal oxide nanoparticles suppress Sudden Death Syndrome of soybean
复制标题
类金属和金属氧化物纳米粒子抑制大豆猝死综合症
DOI：
10.1021/acs.jafc.9b06082
复制
发表时间：
2019
影响因子：
6.1
通讯作者：
Elmer, Wade
中科院分区：
文献类型：
--
作者：
Perez, Cristian;De La Torre Roche, Roberto;Zuverza-Mena, Nubia;Ma, Chuanxin;Shen, Yu;White, Jason C.;Pozza, Edson;Pozza, Adélia;Elmer, Wade
将大豆 (Glycine max)（V3 阶段）喷洒一次 AgO、B、CeO、CuO、MnO、MoO3、SiO、TiO 或 ZnO 纳米颗粒 (NP)，并暴露于镰刀菌（猝死综合症的病因）。在温室实验中观察到高达 80% 的根腐病。然而，NP CuO、B、MoO3 或 ZnO 可将根腐病的严重程度降低 17-25%。受感染的根和芽的 B、Mg、P、S、Si 和 Zn 发生显着变化，但 NP 处理恢复到健康对照的水平。例如，NP B 和 Mn 改良剂可以逆转由疾病引起的根部 Mg 和 Mn 含量的增加。体外试验发现纳米颗粒不抑制病原体。这与植物组织中改变的营养水平的恢复一起表明，调节植物营养可以增强疾病防御能力。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 toFusarium 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.