Guardiola-Márquez Carlos Esteban, García-Sánchez C Valentina, Sánchez-Arellano Óscar Armando, Bojorquez-Rodríguez Erika Melissa, Jacobo-Velázquez Daniel A
Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Ave. General Ramon Corona 2514, Zapopan 45138, Jalisco, Mexico.
Tecnologico de Monterrey, Institute for Obesity Research, Ave. General Ramon Corona 2514, Zapopan 45201, Jalisco, Mexico.
Foods. 2023 Oct 19;12(20):3826. doi: 10.3390/foods12203826.
There is a severe need to develop a sustainable, affordable, and nutritious food supply system. Broccoli microgreens have attracted attention due to their rich nutritional content and abundant bioactive compounds, constituting an important opportunity to feed the ever-increasing population and fight global health problems. This study aimed to measure the impact of the combined application of biofertilizers and zinc and iron nanofertilizers on plant growth and the biofortification of glucosinolates (GLSs) and micronutrients in broccoli microgreens. Biofertilizers were based on plant growth-promoting (PGP) bacterial consortia previously isolated and characterized for multiple PGP traits. Nanofertilizers consisted of ZnO (77 nm) and γ-FeO (68 nm) nanoparticles synthesized with the coprecipitation method and functionalized with a species preparation. Treatments were evaluated under seedbed conditions. Plant growth parameters of plant height (37.0-59.8%), leaf diameter (57.6-81.1%) and fresh weight (112.1-178.0%), as well as zinc (122.19-363.41%) and iron contents (55.19-161.57%), were mainly increased by nanoparticles subjected to the functionalization process with species and uncapped NPs applied together with the biofertilizer treatment. Regarding GLSs, eight compounds were detected as being most positively influenced by these treatments. This work demonstrated the synergistic interactions of applying ZnO and γ-FeO nanofertilizers combined with biofertilizers to enhance plant growth and biofortify micronutrients and glucosinolates in broccoli microgreens.
迫切需要开发一种可持续、价格合理且营养丰富的食品供应系统。西兰花嫩苗因其丰富的营养成分和大量生物活性化合物而备受关注，这为养活不断增长的人口和应对全球健康问题提供了重要契机。本研究旨在测定生物肥料与锌铁纳米肥料联合施用对西兰花嫩苗植物生长以及芥子油苷（GLSs）和微量营养素生物强化的影响。生物肥料基于先前分离并具有多种促植物生长（PGP）特性的PGP细菌联合体。纳米肥料由采用共沉淀法合成并用一种物种制剂功能化的ZnO（77纳米）和γ-FeO（68纳米）纳米颗粒组成。在苗床条件下对各处理进行评估。植株高度（37.0 - 59.8%）、叶片直径（57.6 - 81.1%）和鲜重（112.1 - 178.0%）等植物生长参数，以及锌含量（122.19 - 363.41%）和铁含量（55.19 - 161.57%），主要因经物种功能化处理的纳米颗粒以及与生物肥料处理一起施用的未封端纳米颗粒而增加。关于芥子油苷，检测到有八种化合物受这些处理的影响最为显著。这项工作证明了联合施用ZnO和γ-FeO纳米肥料与生物肥料在促进西兰花嫩苗植物生长以及生物强化微量营养素和芥子油苷方面的协同相互作用。
