Abstract：
In recent years, plastic pollution has become a global environmental problem, posing a potential threat to agricultural ecosystems and human health, and may further exacerbate global food security problems. Studies have revealed that exposure to micro/nano-plastics (MPs/NPs) might cause various aspects of physiological toxicities, including plant biomass reduction, intracellular oxidative stress burst, photosynthesis inhibition, water and nutrient absorption reduction, cellular and genotoxicity, seed germination retardation, and that the effects were closely related to MP/NP properties (type, particle size, functional groups), exposure concentration, exposure duration and plant characteristics (species, tissue, growth stage). Based on a brief review of the physiological toxicity of MPs/NPs to plant growth, this paper comprehensively reviews the potential molecular mechanism of MPs/NPs on plant growth from perspectives of multi-omics, including transcriptome, metabolome, proteome and microbiome, thus to reveal the role of MPs/NPs in plant transcriptional regulation, metabolic pathway reprogramming, protein translational and post-translational modification, as well as rhizosphere microbial remodeling at multiple levels. Meanwhile, this paper also provides prospects for future research, and clarifies the future research directions and the technologies adopted.
摘要：
近年来,塑料污染已成为全球性的环境问题,对农业生态系统和人类健康构成潜在威胁，并可能进一步加剧全球粮食安全问题。研究表明，接触微/纳米塑料（MPs/NPs）可能会导致生理毒性的各个方面，包括植物生物量的减少，细胞内氧化应激爆发，光合作用抑制，减少水分和营养吸收，细胞和遗传毒性，种子萌发阻滞,并且这些影响与MP/NP性质密切相关(类型，颗粒大小,功能组)，暴露浓度,暴露持续时间和植物特征(物种，组织,生长阶段)。在简要回顾MPs/NPs对植物生长的生理毒性的基础上，本文从多组学的角度全面综述了MPs/NPs对植物生长的潜在分子机制,包括转录组，代谢组，蛋白质组和微生物组，从而揭示MPs/NPs在植物转录调控中的作用，代谢途径重编程，蛋白质翻译和翻译后修饰，以及根际微生物在多个水平上的重塑。同时,本文还对未来的研究进行了展望，并明确了未来的研究方向和采用的技术。
