ABSTRACT
Arsenic (As) as a kind of carcinogen, raises a worldwide concern due to its threats to plants and human health via the food chains. In this research, the effects of selenite [Se(IV)] on arsenic uptake and translocation in rice seedlings (Oryza sativa L.) were investigated through hydroponic experiments in greenhouse. The results showed that compared to the As(III) or As(V) treatment alone, application of Se(IV) significantly increased the As content in rice roots by 94.9% or 54.2%, while dramatically decreased its content in shoots by 48.9% or 52.4%, respectively. Accordingly, As accumulation in above-ground parts of rice dropped significantly when Se(IV) presented in the culture solution. Our results demonstrated that Se(IV) could mitigate As translocation from roots to shoots in rice plants.
