Effects of ammonium on growth, nitrogen and carbohydrate metabolism of Potamogeton maackianus A. Benn
文献类型：期刊论文
| 作者 | Li, Huijuan1,2; Cao, Te1; Ni, Leyi1 |
| 刊名 | FUNDAMENTAL AND APPLIED LIMNOLOGY
 |
| 出版日期 | 2007 |
| 卷号 | 170期号:2页码:141-148 |
| 关键词 | eutrophication ammonium total nitrogen (TN) free amino acid (FAA) protein starch Potamogeton maackianus |
| ISSN号 | 1863-9135 |
| 通讯作者 | Ni, L, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China |
| 中文摘要 | Growth, nitrogen and carbohydrate metabolism in relation to eutrophication were studied for a submerged plant Potamogeton maackianus, a species common in East Asian shallow lakes. The plants were grown in six NH4+-N concentrations (0.05, 0.50, 1.00, 3.50, 5.00 and 10.00 mg/L) for six days. NH4+-N levels in excess of 0.50 mg/L inhibited the plant growth. The relationships between external NH4+-N availability and total nitrogen (TN), protein-N, free amino acid-N (FAA-N) and NH4+-N in plant tissues, respectively, conformed to a logarithmic model suggesting that a feedback inhibition mechanism may exist for ammonium uptake. The response of starch to NH4+-N was fitted with a negative, logarithmic curve. Detailed analysis revealed that the influx NH4+-N had been efficiently incorporated into organic-N and eventually stored as protein at the expense of starch accumulation. These data suggest that this species may be able to tolerate high levels of ammonium when dissolved oxygen is sufficient. |
| 英文摘要 | Growth, nitrogen and carbohydrate metabolism in relation to eutrophication were studied for a submerged plant Potamogeton maackianus, a species common in East Asian shallow lakes. The plants were grown in six NH4+-N concentrations (0.05, 0.50, 1.00, 3.50, 5.00 and 10.00 mg/L) for six days. NH4+-N levels in excess of 0.50 mg/L inhibited the plant growth. The relationships between external NH4+-N availability and total nitrogen (TN), protein-N, free amino acid-N (FAA-N) and NH4+-N in plant tissues, respectively, conformed to a logarithmic model suggesting that a feedback inhibition mechanism may exist for ammonium uptake. The response of starch to NH4+-N was fitted with a negative, logarithmic curve. Detailed analysis revealed that the influx NH4+-N had been efficiently incorporated into organic-N and eventually stored as protein at the expense of starch accumulation. These data suggest that this species may be able to tolerate high levels of ammonium when dissolved oxygen is sufficient. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | Limnology; Marine & Freshwater Biology |
| 类目[WOS] | Limnology ; Marine & Freshwater Biology |
| 研究领域[WOS] | Marine & Freshwater Biology |
| 关键词[WOS] | STRATIOTES-ALOIDES L ; WATER-QUALITY ; DECLINE ; LIGHT ; ACCUMULATION ; RESTORATION ; MACROPHYTES ; RESPONSES ; TOXICITY ; PLANTS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000251958100005 |
| 公开日期 | 2010-10-13 |
| 源URL | [http://ir.ihb.ac.cn/handle/152342/8316]  |
| 专题 | 水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Inst Urban Environm, Xiamen 361003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Huijuan,Cao, Te,Ni, Leyi. Effects of ammonium on growth, nitrogen and carbohydrate metabolism of Potamogeton maackianus A. Benn[J]. FUNDAMENTAL AND APPLIED LIMNOLOGY,2007,170(2):141-148. |
| APA | Li, Huijuan,Cao, Te,&Ni, Leyi.(2007).Effects of ammonium on growth, nitrogen and carbohydrate metabolism of Potamogeton maackianus A. Benn.FUNDAMENTAL AND APPLIED LIMNOLOGY,170(2),141-148. |
| MLA | Li, Huijuan,et al."Effects of ammonium on growth, nitrogen and carbohydrate metabolism of Potamogeton maackianus A. Benn".FUNDAMENTAL AND APPLIED LIMNOLOGY 170.2(2007):141-148. |
入库方式： OAI收割
来源：水生生物研究所
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