| 苗期小麦和水稻对硒酸盐/亚硒酸盐的吸收及转运机制 |
| |
| 引用本文： | 陈思杨,江荣风,李花粉.苗期小麦和水稻对硒酸盐/亚硒酸盐的吸收及转运机制[J].环境科学,2011,32(1):284-289. |
| |
| 作者姓名： | 陈思杨 江荣风 李花粉 |
| |
| 作者单位： | 中国农业大学资源与环境学院,北京,100193 |
| |
| 基金项目： | 公益性行业科研专项(2008030030); 国家科技支撑计划项目(2008BADA4B01); 国家自然科学基金项目(41073094) |
| |
| 摘 要： | 采用营养液培养方法研究了苗期小麦和水稻对硒酸盐(Na2SeO4)和亚硒酸盐(Na2SeO3)的吸收及转运机制.营养液中供给Na2SeO4时,正常培养的水稻地上部和根中硒的含量分别30.3 mg·kg-1和39.0 mg·kg-1,水稻吸收的硒有80%从根转移到了地上部;小麦地上部和根中硒的含量分别为1.76 mg·kg...
|
| 关 键 词： | 硒酸盐 亚硒酸盐 植物 吸收 转运 |
| 收稿时间： | 2010/1/26 0:00:00 |
| 修稿时间： | 2010/3/30 0:00:00 |
Uptake and Translocation of Selenate or Selenite by Wheat and Rice Seedlings |
| |
| CHEN Si-yang,JIANG Rong-feng and LI Hua-fen.Uptake and Translocation of Selenate or Selenite by Wheat and Rice Seedlings[J].Chinese Journal of Environmental Science,2011,32(1):284-289. |
| |
| Authors: | CHEN Si-yang JIANG Rong-feng and LI Hua-fen |
| |
| Institution: | CHEN Si-yang,JIANG Rong-feng,LI Hua-fen(College of Resources and Environmental Sciences,China Agricultural University,Beijing 100193,China) |
| |
| Abstract: | Solution culture experiments were carried out to study the uptake and translocation of selenate(Na2SeO4) or selenite(Na2SeO3) by wheat and rice seedlings.When supplied with Na2SeO4 in nutrient solution,the concentrations of selenium(Se) in normal shoots and roots of rice were 30.3 mg.kg-1 and 39.0 mg.kg-1 respectively,and the absorbed Se was quickly translocated to shoots accounting for 80% of the total uptake.Se concentrations in wheat shoots and roots were 1.76 mg.kg-1 and 6.99 mg.kg-1 respectively,accoun... |
| |
| Keywords: | selenate selenite plants uptake transport |
| 本文献已被 CNKI 万方数据 PubMed 等数据库收录！ |
| 点击此处可从《环境科学》浏览原始摘要信息 |
| 点击此处可从《环境科学》下载免费的PDF全文 |
