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Distribution Patterns of Inorganic Mercury and Methylmercury in Tissues of Rice (Oryza sativa L.) Plants and Possible Bioaccumulation Pathways
Bo Meng; Xinbin Feng; Guangle Qiu; Yong Cai; Dingyong Wang; Ping Li; Lihai Shang; Jonas Sommar
2010
Source PublicationJournal of Agricultural and Food Chemistry
Volume58Issue:8Pages:4951–4958
AbstractWhole rice plants (Oryza sativa L.) were collected at different typical mercury (Hg) contaminated sites during regular harvest periods to investigate the distribution of inorganic mercury (IHg) and methylmercury (MeHg) in tissues. The whole rice plants were divided into rice seed (brown rice), hull, root, stalk and leaf. Elevated IHg and MeHg concentrations were observed in rice plants cultivated in Hg mining area compared to those obtained from the control site, which attributed to the Hg contamination of soil compartments by the historical large-scale Hg mining/smelting and ongoing artisanal Hg smelting activities. Our observations showed that Hg in ambient air was the potential source of IHg to the above ground parts, whereas IHg concentrations in root were restricted to Hg concentrations in paddy soil. The rice seed has the highest ability to accumulate MeHg compared to the other tissues. MeHg in paddy soil is a potential source to tissues of rice plant. Our study suggested that newly deposited Hg is comparatively more easily methylated than old mercury in soil.
KeywordDistribution Inorganic Mercury Methylmercury Rice PL.nt (Oryza Sativa L.) Tissues
Subject Area环境地球化学
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/352002/6875
Collection环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文
Recommended Citation
GB/T 7714
Bo Meng,Xinbin Feng,Guangle Qiu,et al. Distribution Patterns of Inorganic Mercury and Methylmercury in Tissues of Rice (Oryza sativa L.) Plants and Possible Bioaccumulation Pathways[J]. Journal of Agricultural and Food Chemistry,2010,58(8):4951–4958.
APA Bo Meng.,Xinbin Feng.,Guangle Qiu.,Yong Cai.,Dingyong Wang.,...&Jonas Sommar.(2010).Distribution Patterns of Inorganic Mercury and Methylmercury in Tissues of Rice (Oryza sativa L.) Plants and Possible Bioaccumulation Pathways.Journal of Agricultural and Food Chemistry,58(8),4951–4958.
MLA Bo Meng,et al."Distribution Patterns of Inorganic Mercury and Methylmercury in Tissues of Rice (Oryza sativa L.) Plants and Possible Bioaccumulation Pathways".Journal of Agricultural and Food Chemistry 58.8(2010):4951–4958.
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