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| 植物吸收全氟/多氟化合物的机制及其相互影响研究进展 |
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黄赞唐1, 赵丹妮1, 潘烨鑫1, 罗启哲1, 敬雪皎1, 孙洁婷1, 向垒3, 莫测辉3*, 侯学文1,2*
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1. 华南农业大学 生命科学学院光合作用与植物逆境生物学研究中心,广州 510642；2. 华南农业大学 生命科学学院亚热带农业生物资源保护与利用国家重点实验室,广州 510642；3. 暨南大学 生命科学技术学院广东省环境污染控制与修复材料工程中心,广州 510632
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| 摘要: |
| 全氟辛酸(perfluorooctanoic acid, PFOA)和全氟辛烷磺酸(perfluorooctane sulfonate, PFOS)是典型的全氟/多氟化合物(per/polyfluoroalkyl substances，PFAS)，因具有优良的表面活性和极高稳定性等理化特性而应用广泛，但在其生产、使用及废弃过程中通常因进入环境而造成污染。土壤是PFAS的重要汇，土壤中的PFAS在被植物吸收、转运及积累后通过食物链在生物中富集并产生危害；且PFAS在环境中具有高持久性，因此其在土壤-作物系统造成的污染风险和潜在危害越来越受到人们的关注，但目前对植物吸收积累PFAS的机制和效应的认识尚不系统。通过对相关文献的梳理表明，PFAS对植物的生长发育、代谢及基因表达会产生影响，反过来植物通过对PFAS的吸收、转运与富集也将对其环境化学行为产生影响。本文先简要介绍PFAS的理化性质、用途及危害，然后从植物影响PFAS在土壤中的分布、植物从土壤中吸收PFAS并在植物中转运积累、不同植物种类及作物品种对PFAS吸收积累的差异、PFAS对植物代谢及生长发育的影响和植物响应PFAS胁迫等方面系统地阐述植物吸收积累PFAS的机制和效应。该文有助于人们全面了解植物与PFAS间的互作关系，并为PFAS污染土壤的治理和利用提供基于植物的解决方案。 |
| 关键词: 全氟辛酸，全氟辛烷磺酸，全氟/多氟化合物，环境化学，植物，相互作用 |
| DOI：10.11931/guihaia.gxzw202410002 |
| 分类号:Q89 |
| Fund project:国家自然科学基金 (42077300, 42030713, 42177187) |
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| Research progress on the mechanisms of plant uptake of per/polyfluoroalkyl compounds and their mutual impacts |
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HUANG Zantang1, ZHAO Danni1, PAN Yexin1, LUO Qizhe1, JING Xuejiao1, SUN Jieting1, XIANG Lei3, MO Cehui3*, HOU Xuewen1,2*
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1. Center for Photosynthesis and Plant Stress Biology, College of Life Sciences, South China Agricultural University, Guangzhou 510642, China; 2. State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou 510642, China; 3. Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, College of Life Science and Technology, Jinan University, Guangzhou 510632, China
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| Abstract: |
| Perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) are two representative per/polyfluoroalkyl substances (PFAS). Due to their excellent physical-chemical characteristics, including surface activity and high stability, these chemicals have found widespread applications in many industries. However, during their production, use, and disposal, some PFAS would enter environment as pollutants inevitably. Soil is the final and largest sink of PFAS. PFAS in soil could be absorbed, translocated, and accumulated by plants, and then enriched in organisms through the food chain and posing serious risks to animals and humans. Moreover, owing to their chemical stability, PFAS persist in the environment for extended periods, leading to their classification as persistent organic pollutants (POPs) and attracting increasing attention. However, the current understanding of the impacts and mechanisms of plant uptake and accumulation of per/polyfluoroalkyl compounds is not well documented. Literature mining indicates that PFAS not only affect plant growth, development, metabolism, and genes expression, but also significantly influence the environmental chemistry of PFAS through absorption, transportation, and enrichment by plants. This review aims to focus on several key topics, such as the influence of plants on PFAS distribution in soil, the mechanisms of PFAS uptake and translocation/accumulation in plants, the effect of PFAS on plant metabolism and growth, and plant response to PFAS stress. This review will promote our understanding of how plants affect the environmental chemical behaviors of PFAS, and provide insights into plant-based solutions for the remediation and utilization of PFAS-contaminated soils. |
| Key words: perfluorooctanoic acid (PFOA), perfluorooctane sulfonate (PFOS), per/polyfluoroalkyl substances (PFAS), environmental chemical behaviors, plant, interaction |
