title: In vivo tracing of organochloride and organophosphorus pesticides in different organs of hydroponically grown malabar spinach (Basella alba L.).
abstract: An in vivo uptake and elimination tracing study based on solid phase microextraction (SPME) was conducted to investigate the accumulation, persistence and distribution of organochloride pesticides (OCPs) and organophosphorus pesticides (OPPs) in malabar spinach (Basella alba L.) plants. Uptake and elimination of the pesticides were traced in leaves, stems and roots of living malabar spinach plants. Root concentration factor (RCF), distribution concentration factor (DCF) and transpiration stream concentration factor (TSCF) were calculated based on the in vivo tracing data. The tracing data showed that the OCPs were much more accumulative and persistent than the OPPs in roots, while they were similarly accumulative and persistent in leaves and stems. RCF values of the OPPs or OCPs were likely to increase with the increase in LogKow values except fenthion. Obtained DCF values indicated that OPPs and OCPs were more accumulative in the organs containing more lipids. TSCF values showed that the translocation of OPPs and OCPs from roots to foliage was firstly dependent on the hydrophobicity of the compounds, but also significantly affected by the water solubility. This is the first study of generating RCF, DCF and TSCF data in living plants by in vivo sampling method, which provides a foundation to promote the application of in vivo SPME and improve understanding of contaminant behaviors in living plants.
authors.affiliation: MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
authors.forename: Junlang
authors.initials: J
authors.lastname: Qiu
authors.affiliation: MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
authors.forename: Guosheng
authors.initials: G
authors.lastname: Chen
authors.affiliation: MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
authors.forename: Jianqiao
authors.initials: J
authors.lastname: Xu
authors.affiliation: MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
authors.forename: Erlun
authors.initials: E
authors.lastname: Luo
authors.affiliation: MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Liu
authors.affiliation: MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
authors.forename: Fuxin
authors.initials: F
authors.lastname: Wang
authors.affiliation: MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
authors.forename: Hong
authors.initials: H
authors.lastname: Zhou
authors.affiliation: Department of Food Science and Technology, College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Liu
authors.affiliation: MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China. Electronic address: ceszf@mail.sysu.edu.cn.
authors.forename: Fang
authors.initials: F
authors.lastname: Zhu
authors.affiliation: MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China. Electronic address: cesoygf@mail.sysu.edu.cn.
authors.forename: Gangfeng
authors.initials: G
authors.lastname: Ouyang
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry; D018527:Hydroponics; D007287:Inorganic Chemicals; D008055:Lipids / Q000737:chemistry; D009930:Organic Chemicals / Q000737:chemistry; D009943:Organophosphorus Compounds / Q000737:chemistry; D010575:Pesticides / Q000032:analysis*; D018515:Plant Leaves / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry*; D052617:Solid Phase Microextraction; D012995:Solubility; D013045:Species Specificity; D018724:Spinacia oleracea / Q000737:chemistry*; D014867:Water / Q000737:chemistry
chemical_list: D007287:Inorganic Chemicals; D008055:Lipids; D009930:Organic Chemicals; D009943:Organophosphorus Compounds; D010575:Pesticides; D014867:Water
keywords: Different organs; In vivo tracing; Malabar spinach; Organochloride/organophosphorus pesticides; Solid-phase microextraction