Cadmium accumulation in relation to organic acids in leaves of Solanum nigrum L. as a newly found cadmium hyperaccumulator
文献类型：期刊论文
| 作者 | Sun, RL ; Zhou, QX ; Jin, CX |
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2006 |
| 卷号 | 285期号:1-2页码:125-134 |
| 关键词 | cadmium hyperaccumulation organic acid phytoremediation Solanum nigrum Solanum melongena tolerance |
| ISSN号 | 0032-079X |
| 通讯作者 | Zhou, QX, Nankai Univ, Coll Environm Sci & Engn, Tianjin 300071, Peoples R China |
| 中文摘要 | The influence of various cadmium concentrations on organic acid levels in leaves of the Cd hyperaccumulator, Solanum nigrum L. and a closely related species, Solanum melongena L., were investigated. In particular, the relationship of organic acids with Cd accumulation in the two plants was investigated. The results showed that Cd accumulation in the shoots of S. nigrum was significantly higher than that of S. melongena. The accumulation of Cd in the leaves of S. nigrum ranged from 2.0 to 167.8 mu g g(-1) dry weight (DW), but only from 1.2 to 64.0 mu g g(-1) DW in S. melongena. Solanum melongena was considerably less tolerant to Cd than S. nigrum. Approximately 20% of the total Cd in S. nigrum leaves was water-soluble, suggesting that some accumulated Cd was associated with water-soluble compounds such as organic acids. Malic acid in the leaves of S. nigrum was the most abundant organic acid [up to 115.6-145.7 mu mol g(-1) fresh weight (FW)], but this acid was not significantly affected by the Cd concentration in soil. However, the level of malic acid in S. melongena plants was much lower, only 16.3-75.4 mu mol g(-1) FW. The significant positive correlations between total Cd and water-soluble Cd concentrations and both acetic and citric acid concentrations in the leaves of S. nigrum were observed. In contrast, there was no correlation between concentrations of the two acids and Cd concentrations in the leaves of S. melongena. These results indicated that acetic and citric acids in the leaves of S. nigrum might be related to its Cd hyperaccumulation. |
| 学科主题 | Agronomy; Plant Sciences; Soil Science |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000240532200011 |
| 公开日期 | 2011-09-23 |
| 源URL | [http://210.72.129.5/handle/321005/54855]  |
| 专题 | 沈阳应用生态研究所_沈阳应用生态研究所_期刊论文 |
| 推荐引用方式 GB/T 7714 | Sun, RL,Zhou, QX,Jin, CX. Cadmium accumulation in relation to organic acids in leaves of Solanum nigrum L. as a newly found cadmium hyperaccumulator[J]. PLANT AND SOIL,2006,285(1-2):125-134. |
| APA | Sun, RL,Zhou, QX,&Jin, CX.(2006).Cadmium accumulation in relation to organic acids in leaves of Solanum nigrum L. as a newly found cadmium hyperaccumulator.PLANT AND SOIL,285(1-2),125-134. |
| MLA | Sun, RL,et al."Cadmium accumulation in relation to organic acids in leaves of Solanum nigrum L. as a newly found cadmium hyperaccumulator".PLANT AND SOIL 285.1-2(2006):125-134. |
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。