National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China.
Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
J Agric Food Chem. 2024 Feb 7;72(5):2526-2535. doi: 10.1021/acs.jafc.3c08112. Epub 2024 Jan 26.
To promote the growth and yield of crops, it is necessary to develop an effective silicon fertilizer. Herein, a new type of 2 nm silicon quantum dot (SiQD) was developed, and the phenotypic, biochemical, and metabolic responses of rice seedlings treated with SiQDs were investigated. The results indicated that the foliar application of SiQDs could significantly improve the growth of rice seedlings by increasing the uptake of nutrient elements and activating the antioxidative defense system. Furthermore, metabolomics revealed that the supply of SiQDs could significantly up-regulate several antioxidative metabolites (oxalic acid, maleic acid, glycine, lysine, and proline) by reprogramming the nitrogen- and carbon-related biological pathways. The findings provide a new strategy for developing an effective and promising quantum fertilizer in agriculture.
为了促进作物的生长和产量，有必要开发一种有效的硅肥。在此，开发了一种新型的 2nm 硅量子点（SiQD），并研究了 SiQD 处理的水稻幼苗的表型、生化和代谢反应。结果表明，叶面喷施 SiQD 可以通过增加营养元素的吸收和激活抗氧化防御系统来显著促进水稻幼苗的生长。此外，代谢组学研究表明，通过重新编程氮和碳相关的生物途径，SiQD 的供应可以显著上调几种抗氧化代谢物（草酸、马来酸、甘氨酸、赖氨酸和脯氨酸）。这些发现为开发农业中有效且有前途的量子肥料提供了一种新策略。
