文献类型：期刊文献

英文题名：Real-Time Monitoring of Translocation, Dissipation, and Cumulative Risk of Maleic Hydrazide in Potato Plants and Tubers by Ion Exclusion Chromatography

作者：Luan, Shaorong[1];Cai, Danni[1];Zhang, Dandan[1];Hou, Chang[1];Meng, Lingling[1];Xu, Jialin[2];Yan, Dongmei[2];Zheng, Hongguo[3];Huang, Qingchun[2]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Pharm, Shanghai Key Lab Chem Biol, Shanghai 200237, Peoples R China;[3]Thermo Fisher Sci, Shanghai 201203, Peoples R China

年份：2023

卷号：71

期号：42

起止页码：15855

外文期刊名：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY

收录：;EI(收录号：20234715083193);WOS:【SCI-EXPANDED(收录号:WOS:001090125100001)】；

基金：This work was partially supported by the National Natural Science Foundation (32372588) and the projects of Science and Technology Plan of Shanghai Municipal in China (19391902400, 21S11901400, 22N41900100).

语种：英文

外文关键词：maleic hydrazide; translocation behavior; dissipation; accumulation; ion exclusion chromatography

摘要：In this paper, a high-performance ion exclusion chromatographic (ICE) method was developed and applied for monitoring maleic hydrazide (MH) translocation in complex potato plant tissue and tuber matrices. After middle leaf uptake, most MH was trapped and dissipated in the middle leaf, and the rest was transported to other parts mainly through the phloem. Soil absorption significantly reduced the uptake efficiency of the root system, in which MH was partitioned to dissipate in root protoplasts or transfer through the xylem and persisted in the plant. Tuber uptake enabled MH to remain in the flesh and maintain stable levels under storage conditions, but during germination, MH was translocated from the flesh to the growing buds, where it dissipated through the short-day photoperiodic regime. The results demonstrated successful application of the ICE method and provided necessary insights for real-time monitoring of MH translocation behavior to effectively improve potato edible safety.