Effect of exogenous amino acids on Cu uptake and translocation in maize seedlings
文献类型：期刊论文
| 作者 | Zhou, Zhigao; Zhou, Jianmin; Li, Renying; Wang, Huoyan; Wang, Jinfang |
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2007-03-01 |
| 卷号 | 292期号:1-2页码:105-117 |
| 关键词 | amino acids Cu translocation Cu uptake maize oxidation state |
| ISSN号 | 0032-079X |
| DOI | 10.1007/s11104-007-9206-8 |
| 通讯作者 | Zhou, Zhigao(phosphor@issas.ac.cn) |
| 英文摘要 | This study aimed to assess the effects of four contrasting proteinogenic amino acids on copper (Cu) uptake and translocation in maize (Zea mays L.) seedlings grown in a modified Hoagland solution. Glycine, aspartic acid and lysine at three concentrations (10, 25 and 100 mu M) did not have any significant effect on Cu uptake and translocation in maize seedlings over a two-day experimental period. However, cysteine (a reductive amino acid) at the three concentrations increased very significantly (P < 0.01) Cu accumulations in the root symplast and the shoots of maize seedlings in comparison to the control. Cu uptake in the whole plant and Cu translocation from root to shoot were also increased in the cysteine treatments. In the 25 mu M cysteine treatment, where cysteine was in moderate excess, the Cu uptake in the whole plant and Cu translocation from root to shoot were significantly (P < 0.01) higher than those of the 10 or 100 mu M cysteine treatments, where the concentration of cysteine was equivalent to that of Cu(II) or in great excess according to the stoichiometry of the redox reaction of cysteine with Cu(II). It is hypothesized that the cysteine-induced oxidation state alteration from Cu(II) to Cu(I) could be responsible for the increased Cu uptake and Cu translocation, on the ground that Cu(I), as free cuprous ion or cysteine cuprous complex, may be more available to maize roots than Cu(II). |
| 收录类别 | SCI |
| WOS关键词 | ZEA-MAYS L ; CV GRASSLANDS PUNA ; ROOT CELL-WALLS ; ORGANIC NITROGEN ; COPPER UPTAKE ; RONDY PLANTS ; NFT SYSTEM ; RED-CLOVER ; RHIZOSPHERE ; L. |
| 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:000245121900008 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558631 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Zhou, Zhigao |
| 作者单位 | 1.Chinese Acad Sci, Nanjing Inst Soil Sci, Nanjing 210008, Peoples R China 2.Nanjing Univ Informat Sci & Technol, Nanjing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Zhigao,Zhou, Jianmin,Li, Renying,et al. Effect of exogenous amino acids on Cu uptake and translocation in maize seedlings[J]. PLANT AND SOIL,2007,292(1-2):105-117. |
| APA | Zhou, Zhigao,Zhou, Jianmin,Li, Renying,Wang, Huoyan,&Wang, Jinfang.(2007).Effect of exogenous amino acids on Cu uptake and translocation in maize seedlings.PLANT AND SOIL,292(1-2),105-117. |
| MLA | Zhou, Zhigao,et al."Effect of exogenous amino acids on Cu uptake and translocation in maize seedlings".PLANT AND SOIL 292.1-2(2007):105-117. |
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来源：南京土壤研究所
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