Long-distance transport of cadmium from roots to leaves of Solanum melongena
文献类型：期刊论文
| 作者 | Qin, Qin2,3; Li, Xuemei4; Zhuang, Jie5; Weng, Liping1; Liu, Wan2; Tai, Peidong2 |
| 刊名 | ECOTOXICOLOGY
 |
| 出版日期 | 2015-12-01 |
| 卷号 | 24期号:10页码:2224-2232 |
| 关键词 | Eggplant (Solanum Melongena) Grafting Girdling Heavy Metals Phloem Transport |
| ISSN号 | 0963-9292 |
| DOI | 10.1007/s10646-015-1546-1 |
| 英文摘要 | In this study, the characteristics of cadmium (Cd) uptake by roots and translocation from roots to leaves of two eggplant species (Solanum melongena and Solanum torvum) under relatively low Cd concentrations were investigated using stable Cd-108 isotope through a number of hydroponic experiments. The uptake and translocation of Cd-108 was compared with those of Zn-70 and N-15. The results showed more Cd-108 was loaded to the vascular channels and translocated upward to the leaves in S. melongena than in S. torvum, while the Cd-108 concentrations were significantly lower in the roots of S. melongena than in S. torvum. When the phloem and xylem were wounded by grafting treatments, the foliar Cd-108 concentrations were decreased by more than 66 % regardless of the rootstock species, whereas the uptake of Cd-108 in the root was not inhibited by grafting. Similar grafting effects were observed for Zn-70. Hence, wounding phloem and xylem by grafting disturbed the upward transport of Cd-108 and Zn-70 to the eggplant leaves. Similarly, interruption of the phloem by the girdling treatment reduced the concentrations of Cd-108 in the leaves of S. melongena by approximately 51 %, though the uptake of Cd-108 by roots was not reduced by the interruption of phloem. In contrast, neither Zn-70 concentrations nor stable N isotope ratio (delta N-15) values in the roots and leaves of S. melongena were significantly influenced by the interruption of phloem. In conclusion, the phloem played a dominant role in the long-distance transport of Cd from the root to the leaf of S. melongena, whereas the xylem was the main channel for the translocation of Zn and N. |
| WOS研究方向 | Environmental Sciences & Ecology ; Toxicology |
| 语种 | 英语 |
| WOS记录号 | WOS:000365758200021 |
| 出版者 | SPRINGER |
| 源URL | [http://210.72.129.5/handle/321005/122309]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Tai, Peidong |
| 作者单位 | 1.Wageningen Univ, Dept Soil Qual, NL-6700 AA Wageningen, Netherlands 2.Chinese Acad Sci, Inst Appl Ecol, Key Lab Pollut Ecol & Environm Engn, Shenyang 110016, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Shenyang Normal Univ, Coll Chem & Life Sci, Shenyang 110034, Peoples R China 5.Univ Tennessee, Inst Secure & Sustainable Environm, Dept Biosyst Engn & Soil Sci, Knoxville, TN 37996 USA |
| 推荐引用方式 GB/T 7714 | Qin, Qin,Li, Xuemei,Zhuang, Jie,et al. Long-distance transport of cadmium from roots to leaves of Solanum melongena[J]. ECOTOXICOLOGY,2015,24(10):2224-2232. |
| APA | Qin, Qin,Li, Xuemei,Zhuang, Jie,Weng, Liping,Liu, Wan,&Tai, Peidong.(2015).Long-distance transport of cadmium from roots to leaves of Solanum melongena.ECOTOXICOLOGY,24(10),2224-2232. |
| MLA | Qin, Qin,et al."Long-distance transport of cadmium from roots to leaves of Solanum melongena".ECOTOXICOLOGY 24.10(2015):2224-2232. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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