The kinetics of aluminum adsorption and desorption by root cell walls of an aluminum resistant wheat (Triticum aestivum L.) cultivar
文献类型：期刊论文
| 作者 | Zheng, SJ; Lin, XY; Yang, JL; Liu, Q; Tang, CX |
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2004-04-01 |
| 卷号 | 261期号:1-2页码:85-90 |
| 关键词 | adsorption and desorption Al cell wall kinetics organic acid pectin |
| ISSN号 | 0032-079X |
| 通讯作者 | Zheng, SJ(sjzheng@zju.edu.cn) |
| 英文摘要 | In the present study, root cell walls were extracted from an Al-resistant wheat (Triticum aestivum L.) cultivar, Atlas 66 to investigate the effect of cell-wall properties on the kinetics of Al adsorption and desorption. Nearly all the Al adsorbed was desorbed by 2.5 mM CaCl2 at pH 4.5, indicating that most of Al ions were electrically bound to cell wall materials. After the cell walls were treated with 1% pectinase for 30 min to degrade part of pectin, the total amount of Al absorbed was decreased by about 50%, indicating that pectin in the cell walls played an important role in binding Al. When the cell walls were preincubated in 1 and 10 mM malate solution overnight to mimic the organic acid secretion by the roots of wheat, the total amount of Al adsorbed was decreased by 60 and 80%, respectively, suggesting that the malate secreted in response to Al stress not only detoxifies Al by its chelating effect, but also reduce the cell walls' capacity to bind Al. |
| 收录类别 | SCI |
| WOS关键词 | HIGHER-PLANTS ; TOLERANCE ; ACID ; AL ; TOXICITY ; SECRETION ; STRESS ; APICES |
| WOS研究方向 | Agriculture ; Plant Sciences |
| WOS类目 | Agronomy ; Plant Sciences ; Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000222815300010 |
| 出版者 | KLUWER ACADEMIC PUBL |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2559309 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Zheng, SJ |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Mat Cycling Pedosphgere, Nanjing Inst Soil Sci, Beijing 100864, Peoples R China 2.La Trobe Univ, Dept Agr Sci, Bundoora, Vic 3086, Australia 3.Zhejiang Univ, Res Inst Agrochem, Hangzhou 310029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, SJ,Lin, XY,Yang, JL,et al. The kinetics of aluminum adsorption and desorption by root cell walls of an aluminum resistant wheat (Triticum aestivum L.) cultivar[J]. PLANT AND SOIL,2004,261(1-2):85-90. |
| APA | Zheng, SJ,Lin, XY,Yang, JL,Liu, Q,&Tang, CX.(2004).The kinetics of aluminum adsorption and desorption by root cell walls of an aluminum resistant wheat (Triticum aestivum L.) cultivar.PLANT AND SOIL,261(1-2),85-90. |
| MLA | Zheng, SJ,et al."The kinetics of aluminum adsorption and desorption by root cell walls of an aluminum resistant wheat (Triticum aestivum L.) cultivar".PLANT AND SOIL 261.1-2(2004):85-90. |
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来源：南京土壤研究所
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