Journal of Ecology and Rural Environment ›› 2024, Vol. 40 ›› Issue (3): 293-302.doi: 10.19741/j.issn.1673-4831.2023.0074

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Mechanisms of Uptake,Distribution,and Transformation of Farmland Ionic Emerging Organic Pollutants in Crop:A Review

JIANG Yan-qi1, HUANG Jian1, SHI Ao-ao1, XU Kai-ran1, REN Jun-ming1, NI Zhuo-biao1,2,3, A Dan4, LIN Qing-qi1,2,3, QIU Rong-liang1,2,3,5   

  1. 1. College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China;
    2. Guangdong Provincial Key Laboratory of Agricultural and Rural Pollution Control and Environmental Safety, Guangzhou 510642, China;
    3. Guangdong Laboratory of Lingnan Modern Agriculture, Guangzhou 510642, China;
    4. College of Resources and Environment, Zhongkai University of Agriculture and Engineering/Guangdong Engineering Research Center for Comprehensive Pollution Control of Agricultural Areas, Guangzhou 510225, China;
    5. School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China
  • Received:2023-02-08 Online:2024-03-25 Published:2024-03-18

Abstract: Emerging organic pollutants are taken up by crops, posing a threat to human health via the food chain. The fate of ionic emerging organic pollutants (IEOPs) is more complicated due to their lower volatility and higher polarity. An understanding of the mechanisms of uptake, distribution, and transformation of IEOPs in crops is important for uncovering the fate of IEOPs in farming systems. Here, the crop uptake and translocation processes of IEOPs are reviewed, with a focus on the effects of the physicochemical properties of IEOPs, crop composition, transporters, and controlling genes, etc. The accumulation and distribution patterns of IEOPs in crops are discussed at the organic, tissular, and subcellular levels. Meanwhile, the transformation mechanisms of IEOPs, including the pathways and enzymes involved, are presented. Finally, the directions for future research in this field, e. g., strengthening research on the uptake mechanisms, improving the uptake prediction models, and focusing on in vivo plant transformation, are presented.

Key words: ionic emerging organic pollutant, farmland, crop uptake, distribution, transformation

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