农业环境科学学报2025，Vol.44Issue(3)：594-604,11.DOI:10.11654/jaes.2024-1146
土壤中微囊藻毒素的污染特征及其对作物的危害
Pollution characteristics of microcystins in soil and their harm to crops
摘要
Abstract
Microcystins(MCs)are a class of biotoxins that are released in large quantities during the occurrence of harmful cyanobacterial blooms,and it can enter the soil through irrigation,overflow,algal fertilizer application.MCs are easily absorbed and enriched by crops,and could migrate to human body through the food chain,which seriously threatening the environment and human health.In this paper,the source and pollution characteristics of MCs in soil were analyzed,and it was found that irrigation was the main way for MCs to enter the soil,and the accumulation concentration in soil was as high as 276 μg·kg-1.MCs pollution in soil is pervasive,persistent and difficult to removal.The accumulation,migration and harm of MCs in soil and crops were explored.It was found that MCs in the soil could be absorbed and accumulated in all crop growth cycles,and the accumulation content of MCs in brassica chinensis and brassica napus was relatively high,especially in the edible parts of mature crops,and the accumulation in crops often shows the law of roots>leaves>stems.MCs in crops can reduce the germination rate of crop seeds,inhibit individual growth,change individual morphology,and it also can change physiological and biochemical properties of crops by reducing the activities of superoxide dismutase,peroxidase and other enzymes.Moreover,the effect of MCs on seedlings is more serious than that on mature plants.It is proposed that the rhizosphere effect may be the main reason that affecting MCs migration from soil to crops,which is a worthy research direction in the future,and this work provides new ideas for studying the pollution of MCs and reducing the environment risk.关键词
蓝藻水华/土壤污染/蔬菜/根际效应/迁移Key words
cyanobacterial blooms/soil pollution/vegetable/rhizosphere effect/migrate分类
环境科学引用本文复制引用
汪彤馨,宋伟杰,周娈,陈旭文,高彦征..土壤中微囊藻毒素的污染特征及其对作物的危害[J].农业环境科学学报,2025,44(3):594-604,11.基金项目
国家自然科学基金项目(42307031) （42307031）
中国博士后科学基金项目(2024T170417,2023M731723) （2024T170417,2023M731723）
江苏省卓越博士后计划项目(2023ZB478) （2023ZB478）
国家重点研发计划项目(2023YFC3708100) National Natural Science Foundation of China(42307031) （2023YFC3708100）
China Postdoctoral Science Foundation(2024T170417,2023M731723) （2024T170417,2023M731723）
Jiangsu Funding Program for Excellent Postdoctoral Talent(2023ZB478) （2023ZB478）
National Key Research and Development Program of China(2023YFC3708100) （2023YFC3708100）
