Effect of indole-3-acetic acid on lead accumulation in maize (Zea mays L.) seedlings and the relevant antioxidant response
文献类型：期刊论文
| 作者 | Wang, Huan-Hua ; Shan, Xiao-Quan ; Wen, Bei ; Owens, Gary ; Fang, Jing ; Zhang, Shu-Zhen |
| 刊名 | ENVIRONMENTAL AND EXPERIMENTAL BOTANY
 |
| 出版日期 | 2007-12 |
| 卷号 | 61期号:3页码:246-253 |
| 关键词 | Ca2+ and K+ channels antioxidant enzyme activity lipid peroxidation mineral nutrition fourier transform infrared spectroscopy |
| 英文摘要 | The effect of indole-3-acetic acid (IAA) on lead (Pb) accumulation in maize (Zea mays L. cv. TY2) seedlings, and the responses of maize to Pb, IAA or Pb + IAA stress were investigated under hydroponic conditions. Exogenous IAA significantly increased Pb accumulation in roots, but significantly decreased Pb accumulation in shoots over the culture period of 5 days. Increased Pb uptake in maize roots partly took place through calcium and potassium channels, and also depended upon membrane potential. Lipid peroxidation in terms of malondialdehyde (MDA) content was enhanced, indicating that Pb and/or IAA caused oxidative stress in maize seedlings. Under stress conditions the antioxidant defense mechanism was activated. Some antioxidant enzymes such as superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) were up-regulated compared to the control. Pb, IAA or Pb + IAA treatments resulted in a general reduction of macro- and micronutrient contents, especially of K, Ca and Mn. Compared to a single Pb or IAA treatment, treatment with a combination of Pb + IAA induced more severe oxidative stress on maize roots and shoots as inferred from the higher observed MDA and lower nutrient contents. A Fourier transform infrared (FTIR) spectroscopic study indicated that Pb reacted with the carboxylic acid group of the IAA pyrrole cycle. (C) 2007 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000250910300004 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/22450]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Huan-Hua,Shan, Xiao-Quan,Wen, Bei,et al. Effect of indole-3-acetic acid on lead accumulation in maize (Zea mays L.) seedlings and the relevant antioxidant response[J]. ENVIRONMENTAL AND EXPERIMENTAL BOTANY,2007,61(3):246-253. |
| APA | Wang, Huan-Hua,Shan, Xiao-Quan,Wen, Bei,Owens, Gary,Fang, Jing,&Zhang, Shu-Zhen.(2007).Effect of indole-3-acetic acid on lead accumulation in maize (Zea mays L.) seedlings and the relevant antioxidant response.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,61(3),246-253. |
| MLA | Wang, Huan-Hua,et al."Effect of indole-3-acetic acid on lead accumulation in maize (Zea mays L.) seedlings and the relevant antioxidant response".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 61.3(2007):246-253. |
入库方式： OAI收割
来源：生态环境研究中心
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