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Accumulation and effects of perfluoroalkyl substances in three hydroponically grown Salix L. species.
Ecotoxicology and Environmental Safety ( IF 6.2 ) Pub Date : 2020-01-14 , DOI: 10.1016/j.ecoenv.2019.110150 Nisha Sharma 1 , Giuseppe Barion 1 , Inisa Shrestha 1 , Leonard Barnabas Ebinezer 1 , Anna Rita Trentin 1 , Teofilo Vamerali 1 , Giustino Mezzalira 2 , Antonio Masi 1 , Rossella Ghisi 1
Ecotoxicology and Environmental Safety ( IF 6.2 ) Pub Date : 2020-01-14 , DOI: 10.1016/j.ecoenv.2019.110150 Nisha Sharma 1 , Giuseppe Barion 1 , Inisa Shrestha 1 , Leonard Barnabas Ebinezer 1 , Anna Rita Trentin 1 , Teofilo Vamerali 1 , Giustino Mezzalira 2 , Antonio Masi 1 , Rossella Ghisi 1
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The potential of young rooted cuttings of three Salix L. species plants to accumulate a mixture of eleven perfluoroalkyl substances (PFASs), in particular, perfluoroalkyl acids (PFAAs), from the nutrient solution and their effects on plant growth and photosynthesis were assessed in an 8-day experiment. The growth rate of the willow plants exposed to the PFAA mixture was not much affected except for S. triandra. Regarding photosynthesis, the gas exchange parameters were affected more than those related to chlorophyll fluorescence, with significant increase of the net CO2 assimilation rate and parameters related to stomatal conductance. A decreasing trend in the PFAA concentration in leaves with increasing carbon chain length was observed, whereas long-chain PFAAs showed higher concentrations in roots. Accordingly, the foliage to root concentration factor highlighted that PFAAs with shorter carbon chain length (C ≤ 7) translocated and accumulated relatively more in leaves compared to roots. Removal efficiency of individual PFAAs for leaves and roots were comparatively higher with S. eleagnos and S. purpurea than S. triandra, with mean removal values at the whole plant level ranging around 10% of the amount initially spiked, suggesting their potential for phytoremediation of PFASs.
中文翻译：
全氟烷基物质在三种水培柳柳属植物中的积累和影响。
评估了三棵柳属植物的年轻生根插条从营养液中累积11种全氟烷基物质（PFAS），特别是全氟烷基酸（PFAAs）的混合物的可能性及其对植物生长和光合作用的影响。 8天的实验。暴露于PFAA混合物中的柳树植物的生长速度除了三链球菌外没有受到太大的影响。关于光合作用，气体交换参数受到的影响比叶绿素荧光相关的影响更大，净CO2同化率和与气孔导度相关的参数显着增加。随着碳链长度的增加，叶片中PFAA浓度呈下降趋势，而长链PFAA的根部浓度升高。因此，叶对根的浓度因子突显出，与根相比，碳链长度较短（C≤7）的PFAA在叶中移位和积累相对更多。S. eleagnos和S. purpurea对单个PFAA的叶和根的去除效率比S. triandra更高，在整个植物水平上的平均去除值约为最初加标量的10％，表明它们对植物进行了植物修复。 PFAS。
更新日期：2020-01-15
中文翻译：
全氟烷基物质在三种水培柳柳属植物中的积累和影响。
评估了三棵柳属植物的年轻生根插条从营养液中累积11种全氟烷基物质（PFAS），特别是全氟烷基酸（PFAAs）的混合物的可能性及其对植物生长和光合作用的影响。 8天的实验。暴露于PFAA混合物中的柳树植物的生长速度除了三链球菌外没有受到太大的影响。关于光合作用，气体交换参数受到的影响比叶绿素荧光相关的影响更大，净CO2同化率和与气孔导度相关的参数显着增加。随着碳链长度的增加，叶片中PFAA浓度呈下降趋势，而长链PFAA的根部浓度升高。因此，叶对根的浓度因子突显出，与根相比，碳链长度较短（C≤7）的PFAA在叶中移位和积累相对更多。S. eleagnos和S. purpurea对单个PFAA的叶和根的去除效率比S. triandra更高，在整个植物水平上的平均去除值约为最初加标量的10％，表明它们对植物进行了植物修复。 PFAS。
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