Fačkovcová Zuzana, Vannini Andrea, Monaci Fabrizio, Grattacaso Martina, Paoli Luca, Loppi Stefano
Department of Life Sciences, University of Siena, via Pier Andrea Mattioli 4, I-53100 Siena, Italy.
Institute of Botany, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Dúbravská cesta 9, SK-84523 Bratislava, Slovakia.
Plants (Basel). 2020 Sep 11;9(9):1179. doi: 10.3390/plants9091179.
Treatments of crops with additives to increase their productivity may pose environmental risks and induce negative effects also on non-target organisms. In this study, we investigated the potential effect of chestnut wood distillate (pyroligneous acid) used in agriculture, on the accumulation of trace elements in aquatic plants. As a model species, the common water fern Lam. was selected, being often used also in phytoremediation processes. The content of selected elements of toxicological concern (As, Ba, Cd, Cu, Fe, Mn, Ni, Pb, Zn) was assessed in the fern after short-term treatments (1-3 days) over a range of wood distillate concentrations 1:300 (3.33 mL/L), 1:500 (2.00 mL/L), 1:700 (1.43 mL/L). A statistically significant accumulation of Cd, Cu, Mn, Pb, Zn (1:700) and Pb (1:300) was recorded after three days of incubation, despite the concentrations remained overall low. Using treatment vs. control ratios, a trend of increasing temporal uptake was detected for As, Ba, Fe, Mn, Pb (1:700); Mn, Pb (1:500), and only Pb at 1:300. The results suggested that, under the experimental conditions, element uptake is positively influenced by time and negatively by increasing concentrations of wood distillate, likely due to the acidification of the medium. On the whole, the element concentrations measured in were low and did not pose any toxicological concern.
用添加剂处理作物以提高其产量可能会带来环境风险，并且对非目标生物也会产生负面影响。在本研究中，我们调查了农业中使用的栗木馏出液（焦木酸）对水生植物中微量元素积累的潜在影响。作为模式物种，选择了常见的水蕨菜，它也常用于植物修复过程。在一系列栗木馏出液浓度1:300（3.33 mL/L）、1:500（2.00 mL/L）、1:700（1.43 mL/L）下进行短期处理（1 - 3天）后，评估了蕨菜中具有毒理学关注的选定元素（砷、钡、镉、铜、铁、锰、镍、铅、锌）的含量。孵育三天后，尽管浓度总体较低，但记录到镉、铜、锰、铅、锌（1:700）和铅（1:300）有统计学显著的积累。使用处理组与对照组的比率，检测到砷、钡、铁、锰、铅（1:700）；锰、铅（1:500）以及仅1:300的铅有随时间增加的吸收趋势。结果表明，在实验条件下，元素吸收受到时间的正向影响，并受到栗木馏出液浓度增加的负向影响，这可能是由于培养基的酸化。总体而言，在[此处原文缺失具体内容]中测得的元素浓度较低，未引起任何毒理学关注。
