Scholarlink

<p>Remediation of soils contaminated by the globally concerning per- and polyfluoroalkyl substances (PFAS) is imperative yet challenging. Herein, we identify a PFAS hyperaccumulator, the herbaceous <i>Oenothera rosea</i>, in soil near a fluorochemical facility and demonstrate root-to-shoot translocation factors of 3.07 − 58.6 for 18 distinct PFAS. Comparative hydroponic/pot experiments using conspecifics from non-polluted areas confirm that hyperaccumulation arises from domestication after prolonged PFAS exposure. Root cell wall pectin and hemicellulose are critical PFAS binding sites, significantly affecting root-to-shoot translocation. Subcellular and transcriptomic analyses reveal that the hyperaccumulating <i>O. rosea</i> undergoes minimal cell wall remodeling under PFAS stress, a signature of adaptive evolution. Life cycle assessment further validates the environmental superiority of an integrated strategy combining <i>O. rosea</i> phytoremediation with biomass pyrolysis for PFAS destruction and biochar production, achieving a net-negative carbon footprint (–17.9 kg CO<sub>2</sub>/ton soil). Our work provides a comprehensive framework for PFAS remediation, from hyperaccumulator identification to sustainable field application.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Identification of a PFAS hyperaccumulator and elucidation of its translocation mechanism for sustainable phytoremediation

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年11月21日

查看全文
  • Xinyu Guo,
  • Xinxin Zhang,
  • Jie Chen,
  • Wenyu Shan,
  • Runyun Wang,
  • Ke Wang,
  • Zhenhuan Chen,
  • Lei Wang,
  • Yanyan Zhang

摘要

Remediation of soils contaminated by the globally concerning per- and polyfluoroalkyl substances (PFAS) is imperative yet challenging. Herein, we identify a PFAS hyperaccumulator, the herbaceous Oenothera rosea, in soil near a fluorochemical facility and demonstrate root-to-shoot translocation factors of 3.07 − 58.6 for 18 distinct PFAS. Comparative hydroponic/pot experiments using conspecifics from non-polluted areas confirm that hyperaccumulation arises from domestication after prolonged PFAS exposure. Root cell wall pectin and hemicellulose are critical PFAS binding sites, significantly affecting root-to-shoot translocation. Subcellular and transcriptomic analyses reveal that the hyperaccumulating O. rosea undergoes minimal cell wall remodeling under PFAS stress, a signature of adaptive evolution. Life cycle assessment further validates the environmental superiority of an integrated strategy combining O. rosea phytoremediation with biomass pyrolysis for PFAS destruction and biochar production, achieving a net-negative carbon footprint (–17.9 kg CO2/ton soil). Our work provides a comprehensive framework for PFAS remediation, from hyperaccumulator identification to sustainable field application.