KMS Chongqing Institute of Green and Intelligent Technology, CAS
| The logistic growth of duckweed (Lemna minor) and kinetics of ammonium uptake | |
Zhang, Kun1; Chen, You-Peng1,2 ; Zhang, Ting-Ting1; Zhao, Yun1; Shen, Yu2; Huang, Lei1; Gao, Xu1; Guo, Jin-Song1,2
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| 2014-03-04 | |
| 摘要 | Mathematical models have been developed to describe nitrogen uptake and duckweed growth experimentally to study the kinetics of ammonium uptake under various concentrations. The kinetics of duckweed ammonium uptake was investigated using the modified depletion method after plants were grown for two weeks at different ammonium concentrations (0.5-14 mg/L) in the culture medium. The maximum uptake rate and Michaelis-Menten constant for ammonium were estimated as 0.082 mg/(g fresh weighth) and 1.877 mg/L, respectively. Duckweed growth was assessed when supplied at different total nitrogen (TN) concentrations (1-5 mg/L) in the culture medium. The results showed that the intrinsic growth rate was from 0.22 to 0.26 d(-1), and TN concentrations had no significant influence on the duckweed growth rate. |
| 关键词 | duckweed ammonium uptake kinetics growth model logistic |
| DOI | 10.1080/09593330.2013.837937 |
| 发表期刊 | ENVIRONMENTAL TECHNOLOGY
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| ISSN | 0959-3330 |
| 卷号 | 35期号:5页码:562-567 |
| 通讯作者 | Chen, YP (reprint author), Chongqing Univ, Key Lab Three Gorges Reservoir Reg Ecoenvironm MO, Chongqing 400045, Peoples R China. |
| 收录类别 | SCI |
| WOS记录号 | WOS:000329153900004 |
| 语种 | 英语 |
