College of Pharmacy, Jilin Medical University, Jilin 132013, Jilin, China.
Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun 130117, Jilin, China.
Sci Total Environ. 2024 Nov 15;951:175581. doi: 10.1016/j.scitotenv.2024.175581. Epub 2024 Aug 15.
To meet societal needs, a large number of medicinal plants are cultivated artificially. However, issues such as diseases and continuous cropping obstacles (CCO) have severely impacted their quality and yield. Exploring and innovating the cultivation technology for medicinal plants is essential to meet their high demand and ensure sustainable development. The role of titanium dioxide nanoparticles (nano-TiO) in medicinal plant cultivation remains unclear. To advance the application of nanotechnology in this field, a comprehensive exploration of its potential benefits is necessary. In this study, nano-TiO was applied to ginseng (Panax ginseng C.A. Meyer) to acquire a holistic comprehension of its impact on ginseng growth, rhizosphere, and ginseng-used soil. Our findings reveal that nano-TiO significantly enhances ginseng root activity and has notable effects on antioxidant enzyme systems. The two concentrations of nano-TiO markedly influenced the structure and composition of microbial communities in the rhizosphere and ginseng-used soil, including key microorganisms such as Chloroflexi and Acidobacteriota, which are closely involved in soil function. Furthermore, nano-TiO altered the competitive and cooperative relationships within microbial networks. Nano-TiO application significantly increased soil organic matter (SOM) content in rhizosphere and ginseng-used soils and affected the activities of several important soil enzymes. Environmental factors, such as EC, pH, and soil nutrients, were found to be the main factors influencing the microbial community. In conclusion, our findings illuminate the complex effects of nano-TiO on the "plant-microbial-soil" system in the context of ginseng cultivation. This work offers novel strategies for optimizing medicinal plant growth and development, as well as improving cultivated soil by using nanomaterials.
为了满足社会需求，大量药用植物被人工种植。然而，疾病和连作障碍（CCO）等问题严重影响了它们的质量和产量。探索和创新药用植物的栽培技术对于满足其高需求和确保可持续发展至关重要。二氧化钛纳米颗粒（nano-TiO）在药用植物栽培中的作用尚不清楚。为了推进纳米技术在该领域的应用，有必要全面探索其潜在的益处。在这项研究中，将 nano-TiO 应用于人参（Panax ginseng C.A. Meyer），以全面了解其对人参生长、根际和人参用土壤的影响。我们的研究结果表明，nano-TiO 显著增强了人参根的活力，对抗氧化酶系统有显著影响。两种浓度的 nano-TiO 显著影响了根际和人参用土壤中微生物群落的结构和组成，包括与土壤功能密切相关的 Chloroflexi 和 Acidobacteriota 等关键微生物。此外，nano-TiO 改变了微生物网络中的竞争和合作关系。nano-TiO 的应用显著增加了根际和人参用土壤中土壤有机质（SOM）的含量，并影响了几种重要土壤酶的活性。环境因素，如 EC、pH 值和土壤养分，被发现是影响微生物群落的主要因素。总之，我们的研究结果阐明了 nano-TiO 在人参栽培背景下对“植物-微生物-土壤”系统的复杂影响。这项工作为利用纳米材料优化药用植物生长和发育以及改善栽培土壤提供了新的策略。
