Screen of Chinese weed species for cadmium tolerance and accumulation characteristics
文献类型：期刊论文
| 作者 | Wei, SH; Zhou, QX; Zhou, QX, Chinese Acad Sci, Inst Appl Ecol, Key Lab Terr Ecol Proc, Shenyang 110016, Peoples R China |
| 刊名 | INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
 |
| 出版日期 | 2008 |
| 卷号 | 10期号:6页码:584-597 |
| 关键词 | Heavy Metal Contaminated Soil Hyperaccumulator Plant Phytoremediation |
| ISSN号 | 1522-6514 |
| 英文摘要 | The cadmium (Cd) tolerance and metal-accumulation characteristics of 29 species (18 families) of weed were studied by using outdoor pot-culture experiments. The results of this screening showed that Bidens pilosa and Kalimeris integrifolia (both Asteraceae) expressed some properties that are characteristic of Cd hyperaccumulators. In 10 mg/kg Cd-spiked soil, they accumulated a good deal of Cd in shoots (28 and 25 mg/kg DW, respectively) with high Cd enrichment factors (EFs; concentration in plant/soil). Cd accumulations in shoots were greater than those in roots (translocation factor (TF) >1, concentration in shoot/root) and the shoot biomasses did not decreased significantly compared to the unspiked control. The other weed species showed little accumulation of Cd, Pb, Cu, or Zn. In a concentration-gradient experiment, the Cd accumulation potentials of B. pilosa and K. integrifolia were examined further. Cd concentrations in leaves of B. pilosa growing in soils spiked with 25, 50, and 100 mg/kg Cd were up to 145, 160, and 192 mg/kg, respectively, and the Cd content in stems in the 100 mg/kg Cd-spiked soil was 115 mg/kg, all greater than the 100 mg/kg notional criterion for Cd hyperaccumulation. The Cd EFs and TFs were all greater than 1. The shoot biomasses did not decrease significantly compared to the controls. B. pilosa was thus shown to have some characteristics of a true Cd hyperaccumulator plant. |
| 学科主题 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000258774100008 |
| 资助机构 | Hi-Tech Research and Development Program of China [2006AA06Z386]; Sino-Russian Joint Research Center for Natural Resources and Eco-Environmental Sciences |
| 公开日期 | 2011-09-23 |
| 源URL | [http://210.72.129.5/handle/321005/54395]  |
| 专题 | 沈阳应用生态研究所_沈阳应用生态研究所 |
| 通讯作者 | Zhou, QX, Chinese Acad Sci, Inst Appl Ecol, Key Lab Terr Ecol Proc, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, SH,Zhou, QX,Zhou, QX, Chinese Acad Sci, Inst Appl Ecol, Key Lab Terr Ecol Proc, Shenyang 110016, Peoples R China. Screen of Chinese weed species for cadmium tolerance and accumulation characteristics[J]. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION,2008,10(6):584-597. |
| APA | Wei, SH,Zhou, QX,&Zhou, QX, Chinese Acad Sci, Inst Appl Ecol, Key Lab Terr Ecol Proc, Shenyang 110016, Peoples R China.(2008).Screen of Chinese weed species for cadmium tolerance and accumulation characteristics.INTERNATIONAL JOURNAL OF PHYTOREMEDIATION,10(6),584-597. |
| MLA | Wei, SH,et al."Screen of Chinese weed species for cadmium tolerance and accumulation characteristics".INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 10.6(2008):584-597. |
入库方式： OAI收割
来源：沈阳应用生态研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。