IGSNRR OpenIR
Micro-distribution of arsenic species in tissues of hyperaccumulator Pteris vittata L.
Wan, Xiaoming1; Lei, Mei1; Chen, Tongbin1; Ma, Jie2,3
2017
Source PublicationCHEMOSPHERE
ISSN0045-6535
Volume166Pages:389-399
Corresponding AuthorLei, Mei(leim@igsnrr.ac.cn)
AbstractArsenic (As) contamination and its harmful consequences have gained increasing attention in research. Phytoextraction, which uses the As hyperaccumulator Pteris vittata L., is a well-established technology adopted in many countries. However, the hyperaccumulation mechanisms of this plant remain controversial. This study investigated the species and the micro-distribution of As species in three P. vittata L ecotypes after exposure to arsenite (AsIII) and arsenate (AsV) for 7d. Arsenic-accumulating abilities and preferences to As species varied among different ecotypes. The reduction of AsV into AsIII, oxidation of AsIII into AsV, and chelation of AsIII with thiols were all observed in P. vittata. The reduction of As mainly occurred in the rhizoid, whereas oxidation and chelation mainly occurred in the above ground parts. Correlation analyses showed that the As concentration in pinna was significantly correlated with the AsV percentage in paraxial and abaxial epidermis (positive), AsIII-GSH percentage in paraxial epidermis (positive), and AsIII percentage in paraxial and abaxial epidermis (negative). Results indicated that oxidation and chelation reactions contributed to the accumulation of As in P. vittata. (C) 2016 Elsevier Ltd. All rights reserved.
KeywordArsenic species Micro-distribution Oxidation Pteris vittata Reduction Thiol
DOI10.1016/j.chemosphere.2016.09.115
WOS KeywordRAY-ABSORPTION SPECTROSCOPY ; CHINESE BRAKE FERN ; PITYROGRAMMA-CALOMELANOS ; SPATIAL-DISTRIBUTION ; PROTEOMIC ANALYSIS ; PADDY SOIL ; SPECIATION ; RICE ; PLANTS ; ACCUMULATION
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41301547] ; Program for Bingwei Excellent Talents of the Institute of Geographic Sciences and Natural Resources Research, CAS
Funding OrganizationNational Natural Science Foundation of China ; Program for Bingwei Excellent Talents of the Institute of Geographic Sciences and Natural Resources Research, CAS
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000386186400042
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/66074
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLei, Mei
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.China Univ Geosci, Sch Water Resources & Environm, Beijing 100083, Peoples R China
3.China Univ Geosci, State Key Lab Biogeol & Environm & Geol, Beijing 100083, Peoples R China
Recommended Citation
GB/T 7714
Wan, Xiaoming,Lei, Mei,Chen, Tongbin,et al. Micro-distribution of arsenic species in tissues of hyperaccumulator Pteris vittata L.[J]. CHEMOSPHERE,2017,166:389-399.
APA Wan, Xiaoming,Lei, Mei,Chen, Tongbin,&Ma, Jie.(2017).Micro-distribution of arsenic species in tissues of hyperaccumulator Pteris vittata L..CHEMOSPHERE,166,389-399.
MLA Wan, Xiaoming,et al."Micro-distribution of arsenic species in tissues of hyperaccumulator Pteris vittata L.".CHEMOSPHERE 166(2017):389-399.
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