Reflection of Stereoselectivity during the Uptake and Acropetal Translocation of Chiral PCBs in Plants in the Presence of Copper.
作者： Shaorui Wang , Chunling Luo , Dayi Zhang , Yan Wang , Mengke Song
关键词: Copper 、 Environmental chemistry 、 Enantiomer 、 Sunflower 、 Shoot 、 Chromosomal translocation 、 Botany 、 Biotransformation 、 Chemistry 、 Hydroponics 、 Stereoselectivity
摘要: Plant uptake and acropetal translocation of polychlorinated biphenyls (PCBs) is a major concern, with many uncertainties, especially when plants are exposed to coexisting PCBs metals. Studying atropisomer selectivity behavior well-proven method for identifying the biotransformation process chiral in plants. This study investigated uptake, translocation, stereoselectivity PCB95 PCB136 (3 μg/L hydroponics 200 μg/kg pot experiment) by monocot corn dicot sunflower after copper (Cu) exposure (50 μmol/L 400 mg/kg experiment). Cu led significantly increased accumulation roots enhanced their from shoots, attributed Cu-induced root damage. In absence Cu, first-eluting enantiomer second-eluting were preferentially enriched shoots both dicot, enantioselectivity was more pronounced...
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