Dechlorination and chlorine rearrangement of 1,2,5,5,6,9,10-heptachlorodecane mediated by the whole pumpkin seedlings

Yanlin Li; Xingwang Hou; Miao Yu; Qunfang Zhou; Jiyan Liu; Jerald L Schnoor; Guibin Jiang

doi:10.1016/j.envpol.2017.02.035

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Dechlorination and chlorine rearrangement of 1,2,5,5,6,9,10-heptachlorodecane mediated by the whole pumpkin seedlings

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Dechlorination and chlorine rearrangement of 1,2,5,5,6,9,10-heptachlorodecane mediated by the whole pumpkin seedlings

Yanlin Li, Xingwang Hou, Miao Yu, Qunfang Zhou, Jiyan Liu, Jerald L Schnoor and Guibin Jiang

Environmental pollution (1987), Vol.224, pp.524-531

05/2017

DOI: 10.1016/j.envpol.2017.02.035

PMCID: PMC6351073

PMID: 28242253

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Abstract

Short chain chlorinated paraffins (SCCPs) are ubiquitously present as persistent organic pollutants in the environment. However, little information on the interaction of SCCPs with plants is currently available. In this work, young pumpkin plants (Cucurbita maxima × C. Moschata) were hydroponically exposed to the congener of chlorinated decane, 1,2,5,5,6,9,10-heptachlorodecane (1,2,5,5,6,9,10-HepCD), to investigate the uptake, translocation and transformation of chlorinated decanes in the intact plants. It was found that parent HepCD was taken up by the pumpkin roots, translocated from root to shoots, and phytovolatilized from pumpkin plants to air via the plant transpiration flux. Our data suggested that dechlorination of 1,2,5,5,6,9,10-HepCD to lower chlorinated decanes and rearrangement of chlorine atoms in the molecule were all mediated by the whole pumpkin seedlings. Chlorinated decanes were found in the shoots and roots of blank controls, indicating that chlorinated decanes in the air could be absorbed by leaves and translocated from shoots to roots. Lower chlorinated congeners (C10H17Cl5) tended to detain in air compared to higher chlorinated congeners (C10H16Cl6 and other C10H15Cl7). Potential transformation pathway and behavior of 1,2,5,5,6,9,10-HepCD in pumpkin were proposed based on these experiments.

ISRP Project 5 2015-2020

Research Center for EcoEnvironmental Science, Chinese Academy of Science, Beijing collaboration

Details

Title: Subtitle: Dechlorination and chlorine rearrangement of 1,2,5,5,6,9,10-heptachlorodecane mediated by the whole pumpkin seedlings
Creators: Yanlin Li
Xingwang Hou
Miao Yu
Qunfang Zhou
Jiyan Liu
Jerald L Schnoor
Guibin Jiang
Resource Type: Journal article
Publication Details: Environmental pollution (1987), Vol.224, pp.524-531
DOI: 10.1016/j.envpol.2017.02.035
PMID: 28242253
PMCID: PMC6351073
NLM abbreviation: Environ Pollut
ISSN: 0269-7491
eISSN: 1873-6424
Grant note: DOI: 10.13039/501100001809, name: National Natural Science Foundation of China, award: 21337002; name: National Key Basic Research Program of China, award: 2014CB441105; DOI: 10.13039/501100001809, name: National Natural Science Foundation of China, award: 21621064; DOI: 10.13039/501100002367, name: Chinese Academy of Science, award: XDB14010400; name: Iowa Superfund Research Program, award: P42ES013661; DOI: 10.13039/100000066, name: National Institute of Environmental Health Science
Language: English
Date published: 05/2017
Academic Unit: Civil and Environmental Engineering; Occupational and Environmental Health; IIHR--Hydroscience and Engineering; Iowa Superfund Research Program
Record Identifier: 9983997424902771

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