Physiological plastic responses to acute NH4+-N toxicity in Myriophyllum spicatum L. cultured in high and low nutrient conditions
文献类型：期刊论文
| 作者 | Liu, Fan2; Apudo, Andrew Apudo1,2,4; Cao, Yu2; Wakibia, Joseph3; Li, Wei2 |
| 刊名 | ENVIRONMENTAL AND EXPERIMENTAL BOTANY
 |
| 出版日期 | 2016-10-01 |
| 卷号 | 130页码:79-85 |
| 关键词 | Eutrophication Ammonium toxicity Myriophyllum spicatum Macrophyte Chlorophyll fluorescence |
| ISSN号 | 0098-8472 |
| DOI | 10.1016/j.envexpbot.2016.05.009 |
| 英文摘要 | Eutrophication alters biological and physical characteristics of aquatic freshwater ecosystems, and different macrophytes exhibit variable capacities to tolerate the subsequent stress factors. Myriophyllum spicatum is one of the most eutrophication tolerant submerged macrophyte species. M. spicatum from Fuxian (oligotrophic) and Xingyun (eutrophic) lakes, in South West China, were cultured in water conditions corresponding to their origin and the alternative trophic state (4 treatments) for a year. Each treatment was exposed to NH4+-N (0, 5, 10, 50, 100, and 200 mg/L) for five days (24 treatments) to investigate the effect of the sources and acute NH4+-N enrichment on photosynthetic performance. Both sources and NH4+-N affected photosynthetic performance, and eutrophic source plants in high nutrients and oligotrophic source plants in low nutrients exhibited higher NH4+-N tolerance. High nutrient cultured individuals had higher leaf number, branching, and heights. There were trade-offs between NH4+-N tolerance in turbid high nutrient conditions and photosynthetic performance in low nutrient conditions with high irradiance. Oligotrophic source plants in low nutrients had the highest chlorophyll a levels at <= 10 mg/L, which dropped markedly afterwards. Soluble carbohydrates and starch decreased at >= 50 mg/L and >= 5 mg/L, respectively. Individuals growing in eutrophic conditions could be prone to higher damage in the field owing to potentially weaker stem and leaf biomechanical properties, because of carbohydrate and energy intensive NH4+-N detoxification in higher NH4+-N conditions. (C) 2016 Elsevier B.V. All rights reserved. |
| 资助项目 | National Natural Science Foundation of China[31370262] ; National Natural Science Foundation of China[31500296] |
| WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000381325000008 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/28]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Liu, Fan |
| 作者单位 | 1.Chinese Acad Sci, Sinoafrica Joint Res Ctr, Wuhan 430074, Hubei, Peoples R China 2.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Hubei, Peoples R China 3.Jomo Kenyatta Univ Agr & Technol, POB 62000, Nairobi, Kenya 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Fan,Apudo, Andrew Apudo,Cao, Yu,et al. Physiological plastic responses to acute NH4+-N toxicity in Myriophyllum spicatum L. cultured in high and low nutrient conditions[J]. ENVIRONMENTAL AND EXPERIMENTAL BOTANY,2016,130:79-85. |
| APA | Liu, Fan,Apudo, Andrew Apudo,Cao, Yu,Wakibia, Joseph,&Li, Wei.(2016).Physiological plastic responses to acute NH4+-N toxicity in Myriophyllum spicatum L. cultured in high and low nutrient conditions.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,130,79-85. |
| MLA | Liu, Fan,et al."Physiological plastic responses to acute NH4+-N toxicity in Myriophyllum spicatum L. cultured in high and low nutrient conditions".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 130(2016):79-85. |
入库方式： OAI收割
来源：武汉植物园
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