农业环境科学学报2025，Vol.44Issue(5)：1208-1216,9.DOI:10.11654/jaes.2024-0424
微塑料-Cd胁迫对蔬菜发芽和幼苗的毒性效应
Toxic effects of microplastics-cadmium stress on vegetable germination and seedlings
摘要
Abstract
To explore the single and combined effects of microplastics and cadmium(Cd)on vegetable germination and seedlings,three typical daily vegetables including Chinese cabbage(Brassica chinensis L.),radish(Raphanus sativus L.)and lettuce(Lactuca sativa L.)were selected to study the impacts of polyethylene(PE)and polyvinyl chloride(PVC)microplastics at different concentrations(1 000 mg·L-1,2 000 mg·L-1)with Cd(2 mg·L-1)on germination,morphological and growth indexes of vegetables.The results showed that microplastics,Cd and their combination had no significant effects on vegetable germination,but different treatments reduced the root length,shoot length and fresh weight of vegetables to different degrees.The toxicity of PVC-Cd treatment to vegetable seedlings was greater than that of PE-Cd treatment,and the sensitivity of vegetables to microplastics and Cd was in the order of lettuce＞radish＞cabbage.Besides,the presence of PE microplastics inhibited the accumulation of Cd by lettuce seedlings,which was greater than PVC microplastics.The present study revealed that the toxic effects of microplastics and Cd were dependent on the types of microplastics and vegetables.关键词
聚乙烯/聚氯乙烯/Cd/复合作用/蔬菜Key words
polyethylene/polyvinyl chloride/cadmium/combined effects/vegetables分类
资源环境引用本文复制引用
姚宇,梁小莹,徐乔,王小治,许美玲..微塑料-Cd胁迫对蔬菜发芽和幼苗的毒性效应[J].农业环境科学学报,2025,44(5):1208-1216,9.基金项目
国家自然科学基金项目(42207014)National Natural Science Foundation of China(42207014) （42207014）
