磺胺嘧啶（SDZ）与镉毒性在菠菜（Spinacia oleracea L.）中的作用机制及协同效应及其通过锌强化的缓解作用。
Mechanism and synergistic effect of sulfadiazine (SDZ) and cadmium toxicity in spinach (Spinacia oleracea L.) and its alleviation through zinc fortification.
机构信息
State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China.
Department of Biology, College of Science and Arts, Najran University, Najran 66252, Saudi Arabia.
出版信息
J Hazard Mater. 2024 Feb 15;464:132903. doi: 10.1016/j.jhazmat.2023.132903. Epub 2023 Nov 2.
Cadmium (Cd) and antibiotic's tendency to accumulate in edible plant parts and fertile land is a worldwide issue. The combined effect of antibiotics and heavy metals on crops was analyzed, but not mitigation of their toxicity. This study investigated the potential of zinc oxide nanoparticles (ZnO NPs) to alleviate the SDZ and Cd toxicity (alone/combined) to promote spinach growth. Results revealed that the ZnO 200 mg L spray decreased the malondialdehyde (MDA) 14%, hydrogen peroxide (HO) 13%, and electrolyte leakage (EL) 7%, and increased the superoxide dismutase (SOD) 8%, peroxidase (POD) 25%, catalase (CAT) 39% and ascorbate peroxidase (APX) 12% in spinach leaves under combined SDZ+Cd (25 mg Kg +50 mg Kg) stress compared to ZnO 100 mg L spray. Likewise, ZnO NPs 200 mg L spray enhanced the zinc (Zn) 97%, iron (Fe) 86%, magnesium (Mg) 35%, manganese (Mn) 8%, and potassium (K) 23% in shoots under combined SDZ+Cd (25 mg Kg +50 mg Kg) stress compared to ZnO 100 mg L spray. Further, ZnO 200 mg L spray reduced Cd uptake in roots by 9% and shoots 15% under combined SDZ+Cd (25 mg Kg +50 mg Kg) stress compared to ZnO 100 mg L. Overall, ZnO NPs alleviated the SDZ and Cd toxicity and enhanced spinach growth in all treatments.
镉 (Cd) 和抗生素在可食用植物部分和肥沃土地中的积累是一个全球性问题。分析了抗生素和重金属对作物的联合效应，但没有减轻它们毒性的方法。本研究调查了氧化锌纳米粒子 (ZnO NPs) 减轻 SDZ 和 Cd 单独/联合毒性以促进菠菜生长的潜力。结果表明，200 mg L ZnO 喷雾降低了 MDA（丙二醛）14%、HO（过氧化氢）13%和 EL（电解质渗漏）7%，并提高了 SOD（超氧化物歧化酶）8%、POD（过氧化物酶）25%、CAT（过氧化氢酶）39%和 APX（抗坏血酸过氧化物酶）12%在组合 SDZ+Cd（25 mg Kg +50 mg Kg）胁迫下的菠菜叶片中，与 100 mg L ZnO 喷雾相比。同样，ZnO NPs 200 mg L 喷雾提高了 Zn（锌）97%、Fe（铁）86%、Mg（镁）35%、Mn（锰）8%和 K（钾）23%在组合 SDZ+Cd（25 mg Kg +50 mg Kg）胁迫下的喷头上，与 100 mg L ZnO 喷雾相比。此外，与 100 mg L ZnO 喷雾相比，ZnO 200 mg L 喷雾在组合 SDZ+Cd（25 mg Kg +50 mg Kg）胁迫下降低了根部 Cd 吸收 9%和地上部 15%。总体而言，ZnO NPs 减轻了 SDZ 和 Cd 毒性，并在所有处理中增强了菠菜的生长。
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