Arsenic Contents, Speciation and Toxicity in Germinated Rice Alleviated by Selenium

Rice can accumulate more organic and inorganic arsenic (iAs) than other crop plants. In this study, the localization of As in rice grains was investigated using High Performance Liquid Chromatography-Inductively Coupled Plasma Mass Spectrometry (HPLC-ICP-MS) based on 26 varieties collected from two provinces. all samples, total contents polished were 0.03–0.37 mg/kg, with average values 0.28 0.21 mg/kg for sample sets. The results determination speciation different components grain showed that brown mean value arsenite (As(III)) nearly twice arsenate (As(V)). regional difference observed both speciation. reason may be As(III) is mobile As(V) a dissociated form because soil properties, varieties, growing environment. proportion iAs bran higher rice, tends between husk endosperm. our selenium could alleviate risk toxicity at primary stage growth. Co-exposure to Se germinated indicated reduction accumulation reached 73.8%, 76.8%, 78.3% As, As(III), when compared treated alone. addition (0.3 mg/kg) along significantly reduced amount parts rice. Our biofortification crops.