Environmental Engineering Division, Department of Civil Engineering, Indian Institute of Technology Hyderabad (IITH), Kandi, Sangareddy, Telangana, 502285, India.
Bull Environ Contam Toxicol. 2023 Jun 22;111(1):4. doi: 10.1007/s00128-023-03767-9.
Wetland plants are gaining interest as potential agents for removing emerging contaminants. However, there have been limited studies examining the ability of these plant species to remove antibiotics and their tolerance to stress. This study aimed to investigate the potential of Canna indica, an indigenous wetland plant species in India, for tetracycline-induced oxidative stress, antioxidant activity, and removal of antibiotics from nutrient media and domestic wastewater. Canna indica exhibited a removal rate of approximately 91.05 ± 0.18% for tetracycline in antibiotic containing nutrient media and 87.97 ± 0.39% in domestic wastewater. Notably, the exposure to the drug during the 30 d reaction period led to the accumulation of reactive oxygen species in the plant tissues. Consequently, there was a decline in chlorophyll content, alongside an increase in antioxidant activity, membrane permeability, and K ion leakage. These findings emphasize the importance of monitoring tolerance levels induced by antibiotics in plant species. Thus, monitoring the antibiotic-induced-tolerance levels in plant species is crucial for maintaining plant health and effectively managing abiotic stress, ensuring efficient recovery and facilitating an effective wetland treatment system.
湿地植物作为去除新兴污染物的潜在剂越来越受到关注。然而，目前很少有研究探讨这些植物物种去除抗生素的能力及其对胁迫的耐受性。本研究旨在探讨印度本土湿地植物美人蕉（Canna indica）去除抗生素和缓解四环素诱导的氧化应激、抗氧化活性的潜力，以及从营养介质和生活废水中去除抗生素的潜力。在含抗生素的营养介质中，美人蕉对四环素的去除率约为 91.05±0.18%，在生活废水中的去除率为 87.97±0.39%。值得注意的是，在 30 d 的反应期内，药物暴露导致植物组织中活性氧的积累。因此，叶绿素含量下降，同时抗氧化活性、膜通透性和 K+离子泄漏增加。这些发现强调了监测抗生素诱导的植物物种耐受性水平的重要性。因此，监测植物物种中抗生素诱导的耐受性水平对于维持植物健康和有效管理非生物胁迫、确保有效回收以及促进有效的湿地处理系统至关重要。
