Do aeration conditions affect arsenic and phosphate accumulation and phosphate transporter expression in rice ( Oryza sativa L.)?
作者: Chuan WuQiongli WangShengguo XueWeisong PanLaiqing LouDaojun LiWilliam Hartley
作者单位: 1School of Metallurgy and Environment, Central South University
2College of Bioscience and Biotechnology, Hunan Agricultural University
3College of Life Sciences, Nanjing Agricultural University
4Crop and Environment Sciences Department, Harper Adams University
刊名: Environmental Science and Pollution Research, 2018, Vol.25 (1), pp.43-51
来源数据库: Springer Journal
DOI: 10.1007/s11356-016-7976-3
关键词: ArsenicAnoxiaRicePhosphate accumulationPhosphate transportation
英文摘要: Abstract(#br)Widespread contamination of rice with arsenic (As) has revealed a major exposure pathway to humans. The present study aimed to investigate the effects of oxygen in the rhizosphere on phosphate (P) transporter (for arsenate transportation) expressions, on As and P accumulation and As speciation in four rice genotypes. Oxygenation marginally increased root and shoot length. Total As concentrations in rice roots were dramatically reduced following aeration compared to stagnant treatments ( p < 0.001). Aeration treatments significantly increased arsenate while reducing arsenite concentrations in roots ( p < 0.001). Root arsenite concentrations were 1.5–2.5 times greater in stagnant than in aeration treatments. Total P concentrations in rice roots were dramatically increased...
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影响因子:2.618 (2012)

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