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<p>Bisphenol A (BPA) is a ubiquitous toxicant with endocrine-disrupting properties. Owing to its extensive industrial application, BPA is frequently detected in water environments, posing a phytotoxic threat to aquatic plants. Acetylsalicylic acid (ASA), a derivative of the natural phenolic compound salicylic acid (SA), has been shown to mimic SA’s role and significantly enhance plant tolerance to biotic and abiotic stresses. In this study, we administered ASA to investigate its role on the <i>Vallisneria natans</i> (Lour.) under 14 days of BPA treatment. The outcomes of BPA exposure manifested that it significantly impeded the growth of <i>V. natans</i>, as reflected by reduced fresh weight and root length. Chlorophyll content of <i>V. natans</i> was also greatly declined. Although the antioxidative enzyme system was modulated in response to BPA stress, the marked accumulation of thiobarbituric acid reactive substances (TBARS) and hydrogen peroxide (H₂O₂) indicated the induction of severe oxidative damage. Conversely, the addition of ASA alleviated the adverse effects of BPA on <i>V. natans</i> by enhancing its antioxidant capacity, elevating soluble protein content, and reducing levels of TBARS and H₂O₂. This study indicated that the ASA could attenuate the oxidation stress induced by BPA in <i>V. natans</i>, despite the absence of anticipated alterations in chlorophyll contents and leaf numbers. The results will guide the ecological risk assessments of water exposed to BPA as well as the choice of exogenous phytoremediation techniques for aquatic plants.</p>

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Effects of exogenous acetylsalicylic acid on growth and physiological characteristics of Vallisneria natans (Lour.) Hara under bisphenol a stress

  • 期刊论文

  • 发表日期：

    2026年4月6日

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  • Qi Liang,
  • Zhen Ke,
  • Zhonghua Wu

摘要

Bisphenol A (BPA) is a ubiquitous toxicant with endocrine-disrupting properties. Owing to its extensive industrial application, BPA is frequently detected in water environments, posing a phytotoxic threat to aquatic plants. Acetylsalicylic acid (ASA), a derivative of the natural phenolic compound salicylic acid (SA), has been shown to mimic SA’s role and significantly enhance plant tolerance to biotic and abiotic stresses. In this study, we administered ASA to investigate its role on the Vallisneria natans (Lour.) under 14 days of BPA treatment. The outcomes of BPA exposure manifested that it significantly impeded the growth of V. natans, as reflected by reduced fresh weight and root length. Chlorophyll content of V. natans was also greatly declined. Although the antioxidative enzyme system was modulated in response to BPA stress, the marked accumulation of thiobarbituric acid reactive substances (TBARS) and hydrogen peroxide (H₂O₂) indicated the induction of severe oxidative damage. Conversely, the addition of ASA alleviated the adverse effects of BPA on V. natans by enhancing its antioxidant capacity, elevating soluble protein content, and reducing levels of TBARS and H₂O₂. This study indicated that the ASA could attenuate the oxidation stress induced by BPA in V. natans, despite the absence of anticipated alterations in chlorophyll contents and leaf numbers. The results will guide the ecological risk assessments of water exposed to BPA as well as the choice of exogenous phytoremediation techniques for aquatic plants.