UM  > 科技學院  > 土木及環境工程系
Effect of Silicon on Arsenic Concentration and Speciation in Different Rice Tissues
Li Gang1,2; Zheng Maozhong1,3; Tang Jianfeng1,2; Shim, Hojae4; Cai Chao1
2018-06
Source PublicationPEDOSPHERE
ISSN1002-0160
Volume28Issue:3Pages:511-520
Abstract

Rice is a major source of inorganic arsenic (As) exposure for billions of people worldwide. Therefore, strategies to reduce As accumulation in rice should be adopted. Silicon (Si) application can effectively mitigate As accumulation in rice. In this study, a pot experiment was performed to investigate the effect of Si on As speciation and distribution in different rice tissues. The results showed that Si addition significantly increased As and Si concentrations in soil solution and Si concentration in iron plaque formed around rice root surface, whereas As in the iron plaque was significantly decreased. Total As concentrations in the stem, leaf, husk, and brown rice were remarkably decreased by 51.9%, 31.9%, 33.8%, and 24.1%, respectively, after Si addition, and inorganic As concentrations were reduced by 52.3%, 35.5%, 50.1%, and 20.1%, respectively. Moreover, both dimethylarsinic acid concentration and percentage in rice grain were significantly elevated by Si application. Therefore, Si application is promising as a way to mitigate inorganic As accumulation in rice and to reduce consumer health risk.

KeywordArsenic Accumulation Contamination Dimethylarsinic Acid Health Risk Inorganic Arsenic Iron Plaque Rice Grain Root Surface
DOI10.1016/S1002-0160(17)60409-0
URLView the original
Indexed BySCI
Language英语
WOS Research AreaAgriculture
WOS SubjectSoil Science
WOS IDWOS:000440647000013
Fulltext Access
Citation statistics
Document TypeJournal article
CollectionDEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING
Corresponding AuthorLi Gang
Affiliation1.Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021 (China)
2.Ningbo Urban Environment Observatory and Monitoring Station, Ningbo 315830 (China)
3.College of Ecology and Resource Engineering, Wuyi University, Wuyishan 354300 (China)
4.University of Macau, Taipa, Macau SAR (China)
Recommended Citation
GB/T 7714
Li Gang,Zheng Maozhong,Tang Jianfeng,et al. Effect of Silicon on Arsenic Concentration and Speciation in Different Rice Tissues[J]. PEDOSPHERE,2018,28(3):511-520.
APA Li Gang,Zheng Maozhong,Tang Jianfeng,Shim, Hojae,&Cai Chao.(2018).Effect of Silicon on Arsenic Concentration and Speciation in Different Rice Tissues.PEDOSPHERE,28(3),511-520.
MLA Li Gang,et al."Effect of Silicon on Arsenic Concentration and Speciation in Different Rice Tissues".PEDOSPHERE 28.3(2018):511-520.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Li Gang]'s Articles
[Zheng Maozhong]'s Articles
[Tang Jianfeng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li Gang]'s Articles
[Zheng Maozhong]'s Articles
[Tang Jianfeng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li Gang]'s Articles
[Zheng Maozhong]'s Articles
[Tang Jianfeng]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.