Effects of phenolics on seedling growth and N-15 nitrate absorption of Cunninghamia lanceolata
文献类型：期刊论文
| 作者 | Chen, LC ; Wang, SL ; Yu, XJ |
| 刊名 | ALLELOPATHY JOURNAL
 |
| 出版日期 | 2005 |
| 卷号 | 15期号:1页码:57-65 |
| 关键词 | allelochemicals Chinese fir p-hydroxybenzoic acid N-15 phenolics total N content tracer vanillic acid |
| ISSN号 | 0971-4693 |
| 通讯作者 | Wang, SL, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China |
| 中文摘要 | Chinese fir (Cunninghamia lanceolata) has replant problem under field conditions and has been attributed to phenolic allelochemicals, which cause its autotoxicity. To determine the mechanism of inhibitory effects of phenolics on Chinese fir, we studied their effects on growth and N-15 nitrate absorption by each organ of its seedlings, cultured in pots using N-15-labelled isotope trace technique. The 1x10(-3) mol(.)L(-1) vanillic acid and phenolics mixture (0.5x10(-3) mol(.)L(-1) vanillic acid and 0.5x10(-3) mol(.)L(-1) rho-hydroxybenzoic acid) significantly inhibited the seedling growth of Chinese fir. Phenolics solution of 1x10(-2) mol(.)L(-1) concentration decreased total N content of roots, stems and leaves. N-15 derived from the fertilizer (NDFF) in roots, stems and leaves treated with I x 10(-2) mol(.)L(-1) vanillic acid was 36.1, 42.7 and 38.5% less, respectively, and corresponding values for phenolics mixture at the same concentration were 14.1, 17.2, and 17.0% lower, respectively, compared to control. In contrast, vanillic acid and p-hydroxybenzoic acid at 1x10(-5) mol(.)L(-1) stimulated the seedling growth, enhanced total N-15 content and increased N-15 nitrate absorption. These treatments also increased the N-15 nitrate distribution in roots and reduced its distribution in stems and leaves. We suggest that accumulated phenolics in soil could inhibit seedling growth through reducing nutrient absorption by Chinese fir and consequently leading to low productivity of replanted Chinese fir. |
| 学科主题 | Agronomy |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000227143900009 |
| 公开日期 | 2011-09-23 |
| 源URL | [http://210.72.129.5/handle/321005/55191]  |
| 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 | Chen, LC,Wang, SL,Yu, XJ. Effects of phenolics on seedling growth and N-15 nitrate absorption of Cunninghamia lanceolata[J]. ALLELOPATHY JOURNAL,2005,15(1):57-65. |
| APA | Chen, LC,Wang, SL,&Yu, XJ.(2005).Effects of phenolics on seedling growth and N-15 nitrate absorption of Cunninghamia lanceolata.ALLELOPATHY JOURNAL,15(1),57-65. |
| MLA | Chen, LC,et al."Effects of phenolics on seedling growth and N-15 nitrate absorption of Cunninghamia lanceolata".ALLELOPATHY JOURNAL 15.1(2005):57-65. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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