The increasing number of pharmaceuticals in the environment and their difficult biodegradation, can lead to bioaccumulation in different trophic compartments. Their bioaccumulation can have negative consequences, especially in the generation of bacterial resistance by antibiotics, but also in the impairment of plant and animal metabolism. The Tejo estuary in Portugal is the habitat for many plant and animal species, which are also prone to this type of contamination. Therefore, in the present study different classes of emerging pollutants (EPs) were surveyed in water samples in the Tejo estuary, including antibiotics, anticonvulsants, antidepressants, lipid-lowering drugs, anti-inflammatory drugs, beta-blockers and analgesics. According to the results, only four compounds were detected in water samples collected at the three selected salt marshes, including carbamazepine, fluoxetine hydrochloride, venlafaxine hydrochloride and acetaminophen. Having the detected substances as a basis, a subsequent study was performed aiming to investigate the uptake and biodegradation capacity of halophytes, using Tripolium pannonicum as a model plant cultivated under controlled conditions with different concentrations of the found EPs. This experimental approach showed that T. pannonicum was able to uptake and degrade xenobiotics. Moreover, the application of sulfamethazine, as a model antibiotic, showed also that this species can uptake and degrade this compound, although the degradation rate and process proved to be compound-specific. This was also confirmed using crude plant extracts spiked with the different EPs. Thus this species is a potential candidate for the remediation of marine water and sediments contaminated with environmentally-significant EPs.

中文翻译：

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受控条件下河口水中新兴污染物的筛选和三角叶雷公藤的植物修复能力

环境中越来越多的药物及其难于降解的生物，可能导致不同营养区室的生物蓄积。它们的生物蓄积可能产生负面影响，尤其是在抗生素产生细菌抗药性时，以及在动植物代谢受损时。葡萄牙的特茹河口是许多动植物物种的栖息地，它们也容易受到此类污染。因此，在本研究中，在Tejo河口的水样中调查了不同类别的新兴污染物（EP），包括抗生素，抗惊厥药，抗抑郁药，降脂药，抗炎药，β受体阻滞剂和镇痛药。根据结果​​，在三个选定的盐沼收集的水样中仅检测到四种化合物，包括卡马西平，盐酸氟西汀，盐酸文拉法辛和对乙酰氨基酚。以检测到的物质为基础，进行了随后的研究，旨在研究盐生植物的吸收和生物降解能力，方法是使用雷公藤作为模型植物，在受控条件下用不同浓度的所发现的EP进行栽培。该实验方法表明，棉铃虫能够摄取和降解异种生物。此外，磺胺二甲嘧啶作为模型抗生素的应用也表明该物种可以摄取和降解该化合物，尽管降解速率和过程证明是特定于化合物的。使用掺有不同EP的粗植物提取物也证实了这一点。因此，该物种是修复受环境重要EP污染的海水和沉积物的潜在候选者。