蒸腾作用对植物中持久性有机污染物/内分泌干扰物积累与转运的影响。
Effect of transpiration on plant accumulation and translocation of PPCP/EDCs.
作者信息
Dodgen Laurel K, Ueda Aiko, Wu Xiaoqin, Parker David R, Gan Jay
机构信息
Department of Environmental Sciences, University of California, Riverside, CA, 92521, USA; Illinois Sustainable Technology Center, University of Illinois, Urbana-Champaign, IL, 61801, USA.
Department of Environmental Sciences, University of California, Riverside, CA, 92521, USA.
出版信息
Environ Pollut. 2015 Mar;198:144-53. doi: 10.1016/j.envpol.2015.01.002. Epub 2015 Jan 13.
The reuse of treated wastewater for agricultural irrigation in arid and hot climates where plant transpiration is high may affect plant accumulation of pharmaceutical and personal care products (PPCPs) and endocrine disrupting chemicals (EDCs). In this study, carrot, lettuce, and tomato plants were grown in solution containing 16 PPCP/EDCs in either a cool-humid or a warm-dry environment. Leaf bioconcentration factors (BCF) were positively correlated with transpiration for chemical groups of different ionized states (p < 0.05). However, root BCFs were correlated with transpiration only for neutral PPCP/EDCs (p < 0.05). Neutral and cationic PPCP/EDCs showed similar accumulation, while anionic PPCP/EDCs had significantly higher accumulation in roots and significantly lower accumulation in leaves (p < 0.05). Results show that plant transpiration may play a significant role in the uptake and translocation of PPCP/EDCs, which may have a pronounced effect in arid and hot climates where irrigation with treated wastewater is common.
在植物蒸腾作用强烈的干旱炎热气候条件下，将经处理的废水用于农业灌溉，可能会影响植物对药品和个人护理产品（PPCP）以及内分泌干扰化学物质（EDC）的积累。在本研究中，胡萝卜、生菜和番茄植株在含有16种PPCP/EDC的溶液中，分别在凉爽湿润或温暖干燥的环境中生长。对于不同离子化状态的化学基团，叶片生物富集因子（BCF）与蒸腾作用呈正相关（p < 0.05）。然而，仅中性PPCP/EDC的根部BCF与蒸腾作用相关（p < 0.05）。中性和阳离子PPCP/EDC表现出相似的积累情况，而阴离子PPCP/EDC在根部的积累显著更高，在叶片中的积累显著更低（p < 0.05）。结果表明，植物蒸腾作用可能在PPCP/EDC的吸收和转运中发挥重要作用，这在常见使用经处理废水进行灌溉的干旱炎热气候中可能产生显著影响。
Zotero 插件