Insight into the Fate of the Novel SDHI Pesticide Flubeneteram in Cucumber: Multiposition Carbon-14 Labeling Assistance
文献类型： 外文期刊
作者： Zheng, Ruonan 1 ; Zhou, Xin 4 ; Cheng, Xi 3 ; Wang, Binjie 1 ; Wang, Jiye 1 ; Ye, Qingfu 2 ;
作者机构： 1.Zhejiang Police Coll, Dept Criminal Sci & Technol, Key Lab Drug Prevent & Control Technol Zhejiang P, Hangzhou 310051, Zhejiang, Peoples R China
2.Zhejiang Univ, Inst Nucl Agr Sci, Key Lab Nucl Agr Sci, Minist Agr PRC & Zhejiang Prov, Hangzhou 310058, Zhejiang, Peoples R China
3.Zhejiang Acad Agr Sci, Inst Agroprod Safety & Nutr, State Key Lab Qual & Safety Agroprod, Key Lab Pesticide Residue Detect,Minist Agr & Rura, Hangzhou 310021, Peoples R China
4.Zhejiang Isotope Technol Co Ltd, Hangzhou 310007, Zhejiang, Peoples R China
关键词： C-14-flubeneeteram; absorption; Translocation; metabolites; residue
期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.2； 五年影响因子：6.4 ）
ISSN： 0021-8561
年卷期： 2025 年 73 卷 32 期
页码：
收录情况： SCI
摘要： Flubeneteram is a new type of SDHI fungicide. This study simulated the application of pesticides in the field and used carbon-14 isotope tracing to investigate the absorption, transport, and accumulation of flubeneteram in its registered cucumber crop. Most of the flubeneteram residue remains on cucumber stems and leaves throughout spraying, and a very small portion can be transported to cucumber roots and fruits. Qualitative and quantitative analyses of highly specific metabolites of C-14-flueniferam in cucumber tissues were conducted via high-performance liquid chromatography-quadrupole time-of-flight (HPLC-QTOF-MS) with two different labeled positions, and their metabolic pathways were elucidated. In the leaves and stems, flubeneteram undergoes phase I and II metabolism, resulting in the production of a total of four metabolites. The proportions and concentrations of these four metabolites met the residual standards. Moreover, only two metabolites are present in cucumber fruit, and their proportions and concentrations also met the residue standards. Overall, our research findings provide relatively accurate predictions for the risk assessment of flubeneteram, which can guide its rational use and ensure its ecological safety and human health.
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