Accumulation and phytotoxicity of perfluorooctanoic acid and 2,3,3,3-tetrafluoro-2-(heptafluoropropoxy)propanoate in Arabidopsis thaliana and Nicotiana benthamiana

被引：39

作者：

Chen, Chih-Hung ^{[1
,2
]}

Yang, Shih-Hung ^{[1
]}

Liu, Yina ^{[3
]}

Jamieson, Pierce ^{[4
]}

Shan, Libo ^{[4
]}

Chu, Kung-Hui ^{[1
]}

机构：

[1] Texas A&M Univ, Zachry Dept Civil & Environm Engn, 3136 TAMU, College Stn, TX 77843 USA

[2] Natl Cheng Kung Univ, Dept Environm Engn, Tainan 70101, Taiwan

[3] Texas A&M Univ, Geochem & Environm Res Grp, College Stn, TX 77845 USA

[4] Texas A&M Univ, Inst Plant Genom & Biotechnol, Dept Plant Pathol & Microbiol, College Stn, TX 77845 USA

来源：

ENVIRONMENTAL POLLUTION | 2020年 / 259卷

基金：

美国国家科学基金会;

关键词：

GenX; PFOA; Bioaccumulation; Translocation; Biomarkers; PERFLUORINATED ALKYL ACIDS; PERFLUOROALKYL SUBSTANCES; ASCORBATE PEROXIDASE; SULFONATE PFOS; PLANT; ABSORPTION; BIOCONCENTRATION; BIOACCUMULATION; METABOLISM; TOLERANCE;

D O I：

10.1016/j.envpol.2019.113817

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

2,3,3,3-Tetrafluoro-2-(heptafluoropropoxy)propanoate (known as GenX) has been used as an alternative to perfluorooctanoic acid (PFOA) which was phased out of formulations for industrial and consumer product applications in 2015. While the effects of GenX on lab animals have been studied, little is known about its effects on plants. This study examined and compared the accumulation and toxicity of GenX and PFOA in the model plants Arabidopsis thaliana and Nicotiana benthamiana. Both plants showed reduction in biomass and root growth following exposure to PFOA or GenX in a dosage-dependent manner. The bioaccumulation factors (BFs) of GenX and PFOA were plant species-dependent, with higher BFs in A. thaliana compared to N. bethanminana. Additionally, GenX and PFOA were more readily accumulated into shoot tissues of A. thaliana than in N. bethanminana. Exposure to GenX also caused a reduction in chlorophyll content (18%) and total phenolic compounds (26%). However, GenX exposure increased superoxide dismutase activity and H2O2 content (1.6 and 2.6 folds increase, respectively) in N. benthamiana. Overall, our result suggest that GenX is bioaccumulative, and that its accumulation likely inhibits plant growth and photosynthesis as well as inducing oxidative stress. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页数：9

共 42 条

[1]

ADAM AL, 1995, PLANTA, V197, P240, DOI 10.1007/BF00202643

[2]

[Anonymous], 2005, J. Uni. Chem. Tech. Metallurgy

[3] COPPER ENZYMES IN ISOLATED CHLOROPLASTS - POLYPHENOLOXIDASE IN BETA-VULGARIS [J].

ARNON, DI .

PLANT PHYSIOLOGY, 1949, 24 (01) :1-15

[4]

Arnot JA, 2006, ENVIRON REV, V14, P257, DOI [10.1139/A06-005, 10.1139/a06-005]

[5] Uptake of Perfluoroalkyl Acids into Edible Crops via Land Applied Biosolids: Field and Greenhouse Studies [J].

Blaine, Andrea C. ;

Rich, Courtney D. ;

Hundal, Lakhwinder S. ;

Lau, Christopher ;

Mills, Marc A. ;

Harris, Kimberly M. ;

Higgins, Christopher P. .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2013, 47 (24) :14062-14069

[6]

DuPont, 2010, DUPONTTM GENX PROC A

[7]

ECHA, 2014, AMM 2 3 3 3 TETR 2 H

[8]

Environmental Protection Agency (EPA), 2017, TECHN FACT SHEET PER

[9]

EPA, 2018, FACT SHEET DRAFT TOX

[10]

EPA, 2006, 2010 15 PFOA STEW PR

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