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| Arsenic uptake by different species of amaranth and the relationship between arsenic and phosphate in amaranth |
| Received:May 18, 2016 |
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| KeyWord:amaranth;arsenic;low-accumulation;phosphorus;species |
| Author Name | Affiliation | E-mail | | ZHANG Qian | Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Environment, Ministry of Agriculture of China, Beijing 100081, China | | | ZENG Xi-bai | Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Environment, Ministry of Agriculture of China, Beijing 100081, China | zengxibai@caas.cn | | SU Shi-ming | Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Environment, Ministry of Agriculture of China, Beijing 100081, China | | | WANG Ya-nan | Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Environment, Ministry of Agriculture of China, Beijing 100081, China | | | BAI Ling-yu | Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Environment, Ministry of Agriculture of China, Beijing 100081, China | | | WU Cui-xia | Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Environment, Ministry of Agriculture of China, Beijing 100081, China | | | GAO Xue | Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Environment, Ministry of Agriculture of China, Beijing 100081, China | | | JIA Wu-xia | Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Environment, Ministry of Agriculture of China, Beijing 100081, China | |
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| Abstract: |
| In this study, a hydroponic experiment was conducted to investigate the resistance and accumulation of arsenic(As) in five amaranth species at two exposure concentrations of As(2 mg·L-1, 4 mg·L-1) as well as correlation relationship between arsenic and phosphorus contents in amaranth. At the As concentration of 2 mg·L-1, the growths of Huahongliuye and Hongliuye amaranth were improved, but the other three species were inhibited compared with the control without As addition. Differently, the growths of all the five species were significantly inhibited when the concentration of As increased to 4 mg·L-1. For the two investigated As treatments, As accumulation in the shoot of the five amaranth species ranked in the same order as follows:Baiyuanye≈Hongliuye > Huahongliuye > Huahong > Yanxuanhongyuanye. Furthermore,the content of phosphorus in amaranth shoot significantly correlated with that of As(r=0.881) at the As concentration of 2 mg·L-1, but insignificant correlation occurred at the As concentration of 4 mg·L-1(r=0.816). Additionally, significant correlation between phosphorus content in amaranth seed and that of As in amaranth shoot was also observed for the two investigated As treatments at 2 mg·L-1(r=0.937) and 4 mg·L-1(r=0.971). |
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