Effects of linear alkylbenzene sulfonate (LAS) on the interspecific competition between Microcystis and Scenedesmus
Effects of linear alkylbenzene sulfonate (LAS) on the interspecific competition between Microcystis and Scenedesmus
复制标题
直链烷基苯磺酸盐（LAS）对微囊藻和栅藻种间竞争的影响
DOI：
10.1007/s11356-016-6809-8
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发表时间：
2016-05
影响因子：
5.8
通讯作者：
Li Ming
中科院分区：
文献类型：
--
作者：
Zhu Wei;Chen Huaimin;Guo Lili;Li Ming
The widespread use of detergents increases the concentration of surfactant in lakes and reservoirs. High surfactant loads produces toxicity to algae; however, the influence of the increasing surfactant on the competition between algae is not clear. In this paper, different amounts of linear alkylbenzene sulfonate (LAS) were added to test the effects of LAS on the competition between Microcystis aeruginosa and Scenedesmus obliquus under eutrophic condition. In single culture, the growth of S. obliquus was promoted under lower LAS concentrations (1 and 20 mg L−1), but cell density of S. obliquus reduced when treated with higher LAS concentration (100 mg L−1). The growth of M. aeruginosa was inhibited markedly with 20 and 100 mg L−1 LAS. Compared with single culture, the result was opposite in co-cultures and the cell density of S. obliquus increased significantly when treated with LAS of 1, 20, and 100 mg L−1. The specific growth rates of S. obliquus and M. aeruginosa in both cultures were 0.4–0.5 day−1 and 0.6–0.7 day−1, respectively, except that the specific growth rate of M. aeruginosa in both cultures treated with 100 mg L−1 LAS was about 0.2 day−1. M. aeruginosa dominated over S. obliquus in the co-culture without LAS, while the competition was completely opposite with the addition of 20 mg L−1 LAS. The growth of S. obliquus treated with 20 mg L−1 LAS was not affected significantly in single culture but was promoted by 75 % in co-culture. Moreover, the growth of S. obliquus in co-culture treated with 100 mg L−1 LAS was promoted by more than 97 %. These results suggested that the increasing LAS would overturn the competition of algae in freshwater ecosystems.
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影响因子：
12.8
作者：
M. Lewis;Burt G. Hamm
通讯作者：
M. Lewis;Burt G. Hamm
影响因子：
8.8
作者：
C. Verge;A. Moreno;J. Bravo;J. Berna
通讯作者：
C. Verge;A. Moreno;J. Bravo;J. Berna
影响因子：
12.8
作者：
Atsuko N. Yamane;M. Okada;R. Sudo
通讯作者：
Atsuko N. Yamane;M. Okada;R. Sudo
影响因子：
3.3
作者：
Chen, Weimin;Liu, Hao;Dai, Shugui
通讯作者：
Dai, Shugui
影响因子：
2.9
作者：
Taku Watanabe;T. Miyazaki
通讯作者：
Taku Watanabe;T. Miyazaki