期刊
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
卷 74, 期 3, 页码 219-224出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ecoenv.2010.10.015
关键词
Cyanobacteria; Antibiotics; Toxicity; Minocycline; Algae; Antibiotic degradation products
资金
- Fundacao para a Ciencia e a Tecnologia, Portugal [SFRH/BPD/32700/2006, SFRH/BD/16292/2004]
- [REEQ/304/QUI/2005]
- Fundação para a Ciência e a Tecnologia [SFRH/BD/16292/2004, SFRH/BPD/32700/2006] Funding Source: FCT
This work aimed to investigate the influence of Microcystis aeruginosa on the rate of minocycline (MNC) removal (abiotic degradation, physical binding or chemical transformation by cells) and the toxicity of MNC and its degradation products to the cyanobacterium. Most of the work was carried out in culture media in the presence or in the absence of M. aeruginosa. The rate of the MNC abiotic degradation in culture media strongly decreased with the increase of the MNC initial concentration. The exudates did not influence the rate of MNC degradation in the media. For concentrations >= 0.48 mu M, the rate of the MNC removal from the media was faster in the presence of M. aeruginosa. Biotic MNC removal occurs by both physical binding by the cells (10%) and chemical transformations. EC50 and EC20 for MNC on the growth of M. aeruginosa were 0.92 and 0.13 mu M, respectively. Interestingly, MNC degradation products might promote M. aeruginosa growth. (C) 2010 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据