Does radial oxygen loss and iron plaque formation on roots alter Cd and Pb uptake and distribution in rice plant tissues?
文献类型：期刊论文
| 作者 | Cheng, H ; Wang, MY ; Wong, MH ; Ye, ZH |
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2014 |
| 卷号 | 375期号:41641页码:137-148 |
| 关键词 | Cadmium Iron plaque Lead Radial oxygen loss Rice |
| ISSN号 | 0032-079X |
| 通讯作者 | chenghao@scsio.ac.cn ; morywang@126.com ; mhwong@hkbu.edu.hk ; lssyzhh@mail.sysu.edu.cn |
| 中文摘要 | Metal (e.g. Cd and Pb) pollution in agricultural soils and crops have aroused considerable attention in recent years. This study aimed to evaluate the effects of ROL and Fe plaque on Cd and Pb accumulation and distribution in the rice plant. A rhizobag experiment was employed to investigate the correlations among radial oxygen loss (ROL), Fe plaque formation and uptake and distribution of Cd and Pb in 25 rice cultivars. Large differences between the cultivars were found in rates of ROL (1.55 to 6.88 mmol O-2 kg(-1) root d.w. h(-1)), Fe plaque formation (Fe: 6,117-48,167 mg kg(-1); Mn: 127-1,089 mg kg(-1)), heavy metals in shoot (Cd: 0.13-0.35 mg kg(-1); Pb: 4.8-8.1 mg kg(-1)) and root tissues (Cd: 1.1-3.5 mg kg(-1); Pb: 45-199 mg kg(-1)), and in Fe plaque (Cd: 0.54-2.6 mg kg(-1); Pb: 102-708 mg kg(-1)). Rates of ROL were positively correlated with Fe plaque formation and metal deposition on root surfaces, but negatively correlated with metal transfer factors of root/plaque and distributions in shoot and root tissues. ROL-induced Fe plaque promotes metal deposition on to root surfaces, leading to a limitation of Cd and Pb transfer and distribution in rice plant tissues. |
| 学科主题 | Agriculture ; Plant Sciences |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [30770417, 41106103]; 863 project [2012AA061510, 2013AA062609]; Research Grant Council of Hong Kong [HKBU-262009] |
| 原文出处 | SPRINGER |
| WOS记录号 | WOS:000331204500011 |
| 公开日期 | 2014-12-11 |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/10575]  |
| 专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
| 推荐引用方式 GB/T 7714 | Cheng, H,Wang, MY,Wong, MH,et al. Does radial oxygen loss and iron plaque formation on roots alter Cd and Pb uptake and distribution in rice plant tissues?[J]. PLANT AND SOIL,2014,375(41641):137-148. |
| APA | Cheng, H,Wang, MY,Wong, MH,&Ye, ZH.(2014).Does radial oxygen loss and iron plaque formation on roots alter Cd and Pb uptake and distribution in rice plant tissues?.PLANT AND SOIL,375(41641),137-148. |
| MLA | Cheng, H,et al."Does radial oxygen loss and iron plaque formation on roots alter Cd and Pb uptake and distribution in rice plant tissues?".PLANT AND SOIL 375.41641(2014):137-148. |
入库方式： OAI收割
来源：南海海洋研究所
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