Botany and Microbiology Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt.
Doctoral School of Biology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary.
Int J Phytoremediation. 2024;26(14):2278-2289. doi: 10.1080/15226514.2024.2387219. Epub 2024 Aug 7.
This study explores the use of algae for phycoremediation, focusing on how and detoxify water contaminated with captan, a common fungicide. The efficiency of these species in absorbing captan and the associated biochemical changes were evaluated to assess their potential for environmental protection. Microalgae were exposed to captan concentrations of 15 and 30 mg/L, and various parameters, including captan uptake, chlorophyll (Chl) a, carotenoid levels, and changes in metabolic profiles (soluble carbohydrates, organic acids, amino acids, and fatty acids), were measured. Results showed had a higher captan absorption capacity (141.7 µg/g at 15 mg/L and 239.3 µg/g at 30 mg/L) compared to Chlorella (74.43 µg/g and 162 µg/g). Increased captan uptake reduced the growth of both species, as indicated by lower Chl a levels. Both species accumulated osmo-protectants and antioxidants as defense mechanisms, with soluble sugars increasing by 83.49% in and 68.87% in , and carotenoids increasing by 60.42% and 46.24%, respectively. Principal component analysis revealed distinct species-level responses, with showing greater tolerance. The study concludes that both species can effectively remediate captan, with being more efficient, indicating their potential for mitigating agrochemical impacts in aquatic environments and promoting sustainable agriculture and water management.
本研究探讨了藻类在光生物修复中的应用，重点研究了它们如何以及去除水培中敌菌丹（一种常见的杀菌剂）的毒性。评估了这些物种吸收敌菌丹的效率以及相关的生化变化，以评估它们在环境保护方面的潜力。将微藻暴露于 15 和 30mg/L 的敌菌丹浓度下，并测量了各种参数，包括敌菌丹的吸收、叶绿素（Chl）a、类胡萝卜素水平以及代谢谱的变化（可溶性碳水化合物、有机酸、氨基酸和脂肪酸）。结果表明，与小球藻相比， 具有更高的敌菌丹吸收能力（15mg/L 时为 141.7µg/g，30mg/L 时为 239.3µg/g）。更高的敌菌丹吸收量降低了两种物种的生长，表现为 Chl a 水平降低。两种物种都积累了渗透保护剂和抗氧化剂作为防御机制，其中 中的可溶性糖增加了 83.49%， 中的增加了 68.87%，类胡萝卜素分别增加了 60.42%和 46.24%。主成分分析显示出明显的物种水平响应， 表现出更高的耐受性。研究得出结论，两种物种都可以有效地修复敌菌丹， 更有效，表明它们在减轻水生环境中农用化学品的影响以及促进可持续农业和水管理方面具有潜力。
