| 引用本文: |
刘湘丹,王志辉,刘笑蓉,彭美晨,王朝晖,周日宝.镉低积累药用植物盆栽及大田筛选试验[J].湖南中医药大学学报,2017,37(3):264-267[点击复制] |
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| 镉低积累药用植物盆栽及大田筛选试验 |
| 刘湘丹,王志辉,刘笑蓉,彭美晨,王朝晖,周日宝 |
| (湖南中医药大学, 湖南 长沙 410208) |
| 摘要: |
| 目的 比较不同植物对重金属镉积累能力差异，筛选出镉低积累药用植物种类。方法 以夏枯草、益母草、薄荷为供试材料，通过盆栽和大田试验，采用原子吸收光谱法测定植物中镉的含量。结果 三种植物积累镉的能力存在差异，益母草 > 薄荷 > 夏枯草。益母草在镉污染土壤中其地上部分镉含量随土壤镉浓度增高而增高，而生长不受影响，属于抗性植物。在镉胁迫下，薄荷、夏枯草生长受到抑制，植物中镉含量较低，且随土壤镉浓度增加植物中镉含量变化较小，属于镉低积累植物。结论 益母草为镉高积累植物，且生长不受影响，可以作为富集植物治理镉污染；薄荷中镉主要积累在地下部分，而其以地上部分入药，夏枯草为镉低积累植物，两者均为可在镉污染地区种植的药用植物。 |
| 关键词: 镉 低积累 药用植物 筛选 夏枯草 益母草 薄荷 |
| DOI：10.3969/j.issn.1674-070X.2017.03.008 |
| 投稿时间：2016-07-02 |
| 基金项目:农业部重点科研项目（湘农业联[2014]88号）；国家中医药管理局“药用植物学”重点学科（国中医药发[2009]30号）；湖南省科技厅重点项目（2015SK2014）；湖湘中药资源保护与利用协同创新中心开放基金项目（HXZY-2015-017）；湖南省研究生创新课题（2016CX10）；湖南省教育厅一般项目（16C1221）。 |
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| Pot and Field Screening Experiment of Low Cadmium Accumulation Medicinal Plants |
| LIU Xiangdan,WANG Zhihui,LIU Xiaorong,PENG Meichen,WANG Zhaohui,ZHOU Ribao |
| (Hunan University of Chinese Medicine, Changsha, Hunan 410208, China) |
| Abstract: |
| Objective The accumulation of heavy metal cadmium capacity of different plants was compared to screening out the low accumulation of cadmium medicinal plants. Methods Choose Prunella vulgaris, motherwort, mint as tested materials, the contents of cadmium in plants were determined by using atomic absorption spectrometry. Results There was a difference in accumulating cadmium of the three plants, motherwort > mint > Prunella vulgaris. The cadmium accumulation in overground part of motherwort was increasing with content of cadmium in soil, while the growth of motherwort, belonging to the resistance plant, was not affected. Under cadmium stress, the growth of mint and Prunella vulgaris, which belong to the low cadmium accumulating plants, was inhibited. Conclusion Motherwort, a high cadmium accumulation plant, can be as hyperaccumulator to govern cadmium pollution, and its growth is not affected. The cadmium accumulation of mint is mainly, the overground part as the medicine, Prunella vulgaris, as low cadmium accumulation plant, both of them is suitable to be planted in cadmium polluted areas. |
| Key words: cadmium low absorption medicinal plants screening Prunella vulgaris motherwort mint |
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