农业环境科学学报2025，Vol.44Issue(12)：3061-3069,9.DOI:10.11654/jaes.2024-1108
3种氯代烷基有机磷酸酯对土壤白符跳(Folsomia candida)的毒性效应
Toxic effects of three chlorinated alkyl organic phosphate esters on Folsomia candida in soil
摘要
Abstract
To clarify the toxicity differences of different chloroalkyl organic phosphate esters on soil-dwelling invertebrate springtail,survival rates,reproduction number,and changes in antioxidant enzyme activity were measured as the evaluation endpoints to study the toxicity effects of three exogenous organic phosphate esters(tri(2-chloroethyl)phosphate ester(TCEP),tri-(2-chloropropyl)phosphate ester(TCPP),and tri(1,3-dichloro-2-propyl)phosphate ester(TDCPP))on model organism Folsomia candida in black.The results showed that the LC50(median lethal concentration)of TCEP and TCPP for acute toxicity(7 days)to Folsomia candida were less than 1 000 mg·kg-1,respectively,while the LC50 of TDCPP exceeded 1 000 mg·kg-1.The EC50(half effect concentration)of TCEP,TCPP,and TDCPP for the chronic toxicity of Folsomia candida(28 days)were 52.8,9.0 mg·kg-1,and 12.3 mg·kg-1,respectively.TCPP had a significant inducing effect on SOD activity(P＜0.05)in chronic toxicity,and the activity of CAT was most affected by TDCPP,showing an inhibitory effect(P＜0.05).TCEP significantly induced the activities of SOD and CAT activity at a low concentration(6 mg·kg-1),while it inhibits them at a high concentration(48 mg·kg-1).The results of this study provide data support and theoretical basis for evaluating the ecological risks of chloroalkyl organic phosphate esters on soil invertebrates.Based on the toxicity thresholds,it can be inferred that the chronic toxicity of the three chloroalkyl organic phosphate esters decreased in the following order:TCPP＞TDCPP＞TCEP.关键词
有机磷酸酯/无脊椎动物/毒性效应/酶活性/土壤Key words
organic phosphate esters/invertebrate/toxic effects/enzyme activity/soil分类
资源环境引用本文复制引用
刘鹏,魏歆倪,石佳悦,高歌,祝航,赵龙,党秀丽..3种氯代烷基有机磷酸酯对土壤白符跳(Folsomia candida)的毒性效应[J].农业环境科学学报,2025,44(12):3061-3069,9.基金项目
国家重点研发计划项目(2022YFC3703205)National Key Research and Development Program of China(2022YFC3703205) （2022YFC3703205）
