Excessive sulfur supply reduces arsenic accumulation in brown rice

	Excessive sulfur supply reduces arsenic accumulation in brown rice
	Fan, J.1; Xia, X.2; Hu, Z.3; Ziadi, N.4; Liu, C.5
刊名	PLANT SOIL AND ENVIRONMENT
	2013
卷号	59 期号:4 页码:169-174
关键词	arsenic toxicity glutathione iron plaque Oryza sativa L. plant uptake
ISSN号	1214-1178
通讯作者	Fan, J.
英文摘要	The objective of this study was to investigate the influence of excessive sulfur (S) supply on iron plaque formation and arsenic (As) accumulation in rice plants. A combined soil-sand pot experiment was conducted by using two As levels (0, 20 mg/kg) combined with three S concentrations (0, 60, 120 mg/kg). The results showed that excessive S supply significantly decreased As concentration in brown rice, but As concentration in root increased with increasing rate of S supply. Moreover, bioconcentration factors for leaves and stems were 8-35 fold of that for brown rice, indicating that As was mainly accumulated in rice leaves and stems instead of brown rice. Furthermore, excessive S supply significantly decreased translocation factor of As compared to treatment without S supply. These results indicated that excessive S may reduce As translocation from soils and roots to grain. The mechanism could be ascribed to excessive S that induced the decrease of As availability, the increase of iron plaque formation under As stress, and the increase of glutathione in rice leaves and roots. Therefore, excessive S can reduce As accumulation in brown rice exposed to As contaminated soils though it may result in loss of rice yield.
学科主题	Agronomy ; AGRONOMY
语种	英语
出版者	CZECH ACADEMY AGRICULTURAL SCIENCES
WOS记录号	WOS:000317967400005
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/19867]
专题	农业环境与可持续发展研究所
作者单位	1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing, Jiangsu, Peoples R China 2.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100193, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 4.Agr & Agri Food Canada, Soils & Crops Res & Dev Ctr, Quebec City, PQ, Canada 5.Nanjing Univ Informat Sci & Technol, Coll Appl Meteorol, Jiangsu Key Lab Agr Meteorol, Nanjing, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Fan, J.,Xia, X.,Hu, Z.,et al. Excessive sulfur supply reduces arsenic accumulation in brown rice[J]. PLANT SOIL AND ENVIRONMENT,2013,59(4):169-174.
APA	Fan, J.,Xia, X.,Hu, Z.,Ziadi, N.,&Liu, C..(2013).Excessive sulfur supply reduces arsenic accumulation in brown rice.PLANT SOIL AND ENVIRONMENT,59(4),169-174.
MLA	Fan, J.,et al."Excessive sulfur supply reduces arsenic accumulation in brown rice".PLANT SOIL AND ENVIRONMENT 59.4(2013):169-174.