Screen of Low-accumulating Pak Choi（<italic style="font-style: italic">Brassica parachinensis L.</italic>） Cultivar for Perfluorooctanoic Acid and Its Alternative

GU Qian; ZHOU Peng-fei; SONG Chen-zhuo; ZHANG Qian; CUI Xin-yi

doi:10.12452/j.fxcsxb.24052879

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Screen of Low-accumulating Pak Choi（Brassica parachinensis L.） Cultivar for Perfluorooctanoic Acid and Its Alternative

Scientific Papers | 更新时间：2024-08-08

- Screen of Low-accumulating Pak Choi（Brassica parachinensis L.） Cultivar for Perfluorooctanoic Acid and Its Alternative
- Journal of Instrumental Analysis Vol. 43, Issue 8, Pages: 1242-1248(2024)
- 作者机构：
  
  南京大学环境学院，污染控制与资源化研究国家重点实验室，江苏南京 210046
- 作者简介：
- 基金信息：
- DOI：10.12452/j.fxcsxb.24052879
  CLC： O657.63;X132
- Published：15 August 2024，
  
  Received：28 May 2024，
  
  Revised：30 June 2024，
- 稿件说明：
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顾茜,周鹏飞,宋晨卓,张谦,崔昕毅.低富集全氟辛酸及替代物的青菜品种筛选与机制研究[J].分析测试学报,2024,43(08):1242-1248.

GU Qian,ZHOU Peng-fei,SONG Chen-zhuo,ZHANG Qian,CUI Xin-yi.Screen of Low-accumulating Pak Choi（Brassica parachinensis L.） Cultivar for Perfluorooctanoic Acid and Its Alternative[J].Journal of Instrumental Analysis,2024,43(08):1242-1248.
顾茜,周鹏飞,宋晨卓,张谦,崔昕毅.低富集全氟辛酸及替代物的青菜品种筛选与机制研究[J].分析测试学报,2024,43(08):1242-1248. DOI： 10.12452/j.fxcsxb.24052879.

GU Qian,ZHOU Peng-fei,SONG Chen-zhuo,ZHANG Qian,CUI Xin-yi.Screen of Low-accumulating Pak Choi（Brassica parachinensis L.） Cultivar for Perfluorooctanoic Acid and Its Alternative[J].Journal of Instrumental Analysis,2024,43(08):1242-1248. DOI： 10.12452/j.fxcsxb.24052879.

摘要

该研究对比了16种常见青菜品种对全氟辛酸（PFOA）和其替代物六氟环氧丙烷二聚酸（HFPO-DA）的耐受性和富集差异。从16种目前农业上种植较多的青菜品种中筛选出高富集（HACV）和低富集（LACV）的青菜品种，其中高富集品种早生一品的PFOA和HFPO-DA的富集因子（94.7、51.6）分别为低富集品种华青二号（72.9、30.2）的1.3和1.7倍。机理研究表明，较低的蒸腾作用和较高的脂质含量导致了华青二号对PFOA和HFPO-DA的低富集。在亚细胞水平上，细胞壁、细胞核和叶绿体中PFOA和HFPO-DA含量占比越高，其转运到地上部的趋势则更易被限制。该研究筛选出高富集和低富集典型全氟化合物的青菜品种，并从植物生理生化的角度解释了潜在机制，可为农业种植提供指导意见，从而降低农产品中持久性有机污染物的暴露风险。

Abstract

This study compared the tolerance and accumulation differences of 16 common pak choi（

Brassica parachinensis L.

） varieties towards perfluorooctanoic acid（PFOA） and its substitute hexafluoropropylene oxide dimer acid（HFPO-DA）. Among these varieties commonly cultivated in agriculture，high-accumulating crop varieties（HACV） and low-accumulating crop varieties（LACV） were identified. The bioconcentration factor of PFOA and HFPO-DA in HACV（ZS1P）（94.7 and 51.6，respectively） were 1.3 and 1.7 times higher than those in LACV（HQ2H）（72.9 and 30.2，respectively）. Mechanism study showed that lower transpiration and higher lipid content resulted in lower PFOA and HFPO-DA accumulation in LACV. Subcellular analysis indicated that pak choi with higher proportions of PFOA and HFPO-DA in their cell walls，nucleus，and chloroplasts potentially limit the transfer of pollutants to shoots. This study screened pak choi varieties with high and low accumulating per- and polyfluoroalkyl substances and revealed the mechanism from the perspective of ph

ysiological and biochemical，which can provide guidance for agricultural cultivation to mitigate the exposure risk of persistent organic pollutants in crops.

关键词

新型全氟化合物全氟辛酸超高效液相色谱-串联质谱青菜品种筛选

Keywords

emerging per- and polyfluoroalkyl substancesperfluorooctanic acidUPLC-MS/MSselection of pak choi varieties

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Screen of Low-accumulating Pak Choi（Brassica parachinensis L.） Cultivar for Perfluorooctanoic Acid and Its Alternative

DOI：10.12452/j.fxcsxb.24052879

摘要

Abstract

关键词

Keywords

references