Transcriptional response of Phoebe bournei seedlings under polystyrene nanoplastic treatment (PRJCA042593)

In the context of increasing microplastic pollution of terrestrial ecosystems, woody plants may be potential phytoremediation options. However the uptake, translocation, enrichment and toxic effects of nanoplastics in woody plants remain largely unexplored. In this study, we used fluorescently labeled particles of 30 nm particle size and conducted experiments with Phoebe bournei to investigate the uptake and distribution characteristics as well as the physiological and biochemical responses to NPs, which provided a new perspective to understand the toxic effects and translocation internalization of nanoplastics in response to nanoplastics in perennial woody vascular plants, as well as providing a reference for the further application of woody plants to the remediation mechanism of ecological pollution by microplastics.

随着陆地生态系统微塑料（microplastic）污染问题日益加剧，木本植物或可成为潜在的植物修复（phytoremediation）方案。然而，纳米塑料（nanoplastics）在木本植物体内的吸收、转运、富集及毒性效应，目前仍未得到充分探究。本研究采用粒径30 nm的荧光标记颗粒，以闽楠（Phoebe bournei）为实验材料开展相关试验，旨在探究纳米塑料的吸收与分布特征，以及植物对纳米塑料的生理生化响应。本研究为理解纳米塑料在多年生木本维管植物中的毒性效应与转运内化过程提供了全新视角，同时也为木本植物应用于微塑料污染生态修复机制的后续研究提供了重要参考依据。