Pujicic Andrijana, Agachi Bianca-Vanesa, Vulpe Constantina-Bianca, Isvoran Adriana
Department of Biology, West University of Timisoara, Blvd. V Parvan 4, 300223 Timisoara, Romania.
Department of Biology, Advanced Environmental Research Institute, Oituz, 4, 300086 Timisoara, Romania.
Toxics. 2025 Aug 8;13(8):668. doi: 10.3390/toxics13080668.
Tarragon extracts, especially from , have shown their potential as natural pesticides and can harm aquatic ecosystems. In addition, waste from tarragon essential oil production can also contribute to aquatic pollution if not properly managed. In this study, a hydrodistillate and a commercial tarragon essential oil were considered to evaluate their effects on aquatic ecosystems. A growth inhibition test was performed using to evaluate the potential ecotoxicity of tarragon extracts, and a biochemical test was performed to investigate the potential effects of the lowest volume of oil, which did not cause any visible impact on this organism. The results showed that the hydrodistillate did not show toxic effects on , but the essential oil demonstrated potential ecotoxicity, with volumes of 0.5 µL and above leading to percentage reductions in frond numbers of 50% and higher. The biochemical assay revealed no significant differences between the negative control and the lowest volume of oil tested, suggesting the absence of biochemical effects at low exposure levels. The effects of compounds identified at higher concentrations in the tarragon extracts on other aquatic organisms were predicted using the admetSAR3.0 tool, and potential toxicity against numerous aquatic organisms was emphasized, particularly for cis-beta-ocimene, trans-beta-ocimene, and caryophyllene oxide. These findings emphasize the need for careful consideration of both the application dose and disposal practices of tarragon-based products.
龙蒿提取物，尤其是来自[具体来源未提及]的提取物，已显示出其作为天然杀虫剂的潜力，但可能会对水生生态系统造成危害。此外，如果管理不当，龙蒿精油生产过程中的废物也会导致水污染。在本研究中，对一种水蒸馏物和一种市售龙蒿精油进行了评估，以考察它们对水生生态系统的影响。使用[具体生物未提及]进行了生长抑制试验，以评估龙蒿提取物的潜在生态毒性，并进行了生化试验，以研究最低剂量的精油（该剂量对该生物未产生任何可见影响）的潜在影响。结果表明，水蒸馏物对[具体生物未提及]未显示出毒性作用，但精油表现出潜在的生态毒性，0.5微升及以上的剂量会导致叶片数量减少50%及以上。生化分析显示，阴性对照与测试的最低剂量精油之间没有显著差异，这表明在低暴露水平下不存在生化效应。使用admetSAR3.0工具预测了龙蒿提取物中高浓度鉴定出的化合物对其他水生生物的影响，并强调了对许多水生生物的潜在毒性，特别是对顺式-β-罗勒烯、反式-β-罗勒烯和氧化石竹烯。这些发现强调了在使用基于龙蒿的产品时，需要仔细考虑施用剂量和处置方式。
