Allelopathic interference of Ambrosia trifida with wheat (Triticum aestivum)
文献类型：期刊论文
| 作者 | Kong, CH ; Wang, P ; Xu, XH |
| 刊名 | AGRICULTURE ECOSYSTEMS & ENVIRONMENT
 |
| 出版日期 | 2007 |
| 卷号 | 119期号:3-4页码:416-420 |
| 关键词 | allelopathy Ambrosia trifida Triticum aestivum allelochemical amended soil Northeast China |
| ISSN号 | 0167-8809 |
| 通讯作者 | Kong, CH, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China |
| 中文摘要 | Ambrosia trifida is worldwide spreading in ecological terms as pioneer species and is one of the most economically destructive weeds occurring on arable lands in North China. It has long been suspected of using allelopathy to interfere with the growth and establishment of crop plants, but the mechanisms involved in allelopathy is largely unknown. In this study, a series of experiments were conducted to assess the phytotoxicity and to identify the allelochemicals of A. trifida against wheat (Triticum aestivum). The results showed that wheat growth could be significantly inhibited in A. trifida infested or residue amended soils in Northeast China. Two carotane-type sesquiterpenes, 1 alpha-angeloyloxy-carotol and 1 alpha-(2-methylbutyroyloxy)-carotol, were subsequently isolated and identified from the toxic soils. Both compounds had high inhibitory activity on wheat growth. Their inhibition thresholds were 11.5 mu g/g soil for 1 alpha-angeloyloxycarotol) and 16.3 mu g/g soil for 1 alpha-(2-methylbutyroyloxy)-carotol. Furthermore, these two compounds were detected from A. trifida infested and residue amended soils. Their amounts ranged from 13.7 to 43.2 mu g/g soil. As a result, A. trifida could release sufficient quantities of 1 alpha-angeloyloxycarotol and 1 alpha-(2-methylbutyloyloxy)-carotol into the soil to act as allelochemicals inhibiting the growth of wheat. The study suggested that 1 alpha-angeloyloxy-carotol and 1 alpha-(2-methylbutyroyloxy)-carotol could be key allelochemicals in A. trifida infested wheat fields and that A. trifida interferes with wheat growth via allelopathy. (c) 2006 Elsevier B.V. All rights reserved. |
| 学科主题 | Agriculture, Multidisciplinary; Ecology; Environmental Sciences |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000244015100022 |
| 公开日期 | 2011-09-23 |
| 源URL | [http://210.72.129.5/handle/321005/54765]  |
| 专题 | 沈阳应用生态研究所_沈阳应用生态研究所_期刊论文 |
| 推荐引用方式 GB/T 7714 | Kong, CH,Wang, P,Xu, XH. Allelopathic interference of Ambrosia trifida with wheat (Triticum aestivum)[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2007,119(3-4):416-420. |
| APA | Kong, CH,Wang, P,&Xu, XH.(2007).Allelopathic interference of Ambrosia trifida with wheat (Triticum aestivum).AGRICULTURE ECOSYSTEMS & ENVIRONMENT,119(3-4),416-420. |
| MLA | Kong, CH,et al."Allelopathic interference of Ambrosia trifida with wheat (Triticum aestivum)".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 119.3-4(2007):416-420. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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