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标题：Impact of 17β-Estradiol on Natural Water’s Heterotrophic Nitrifying Bacteria
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作者：Ziyi Dong ; Changhao Xiao ; Weihua Zeng 等
期刊名称：International Journal of Environmental Science and Development
印刷版ISSN：2010-0264
出版年度：2021
卷号：12
期号：1
页码：7-22
DOI：10.18178/ijesd.2021.12.1.1312
摘要：Impact of 17β-Estradiol on Natural Water’s Heterotrophic Nitrifying Bacteria Ziyi Dong, Changhao Xiao, Weihua Zeng, and Jinbo Zhao In this research, bottom water samples were collected from nature water. After cultivating and selecting, bacteria which could use (NH 4 ) 2 SO4 as the only nitrogen source had been selected. The bacteria in different cultures with different concentration of 17β-estradiol (E2) were cultivated, and every group’s concentration of N-NH 4 , N-NO 3 - and OD600 were measured. The result shows that compare with the control group, in which no E2 was added, the growth of heterotrophic nitrifying bacteria had been promoted when the concentration of E2 was in range of 1-100 ng/L. In addition, heterotrophic nitrifying bacteria’s growing speed has a positive correlation between the E2’s concentration. However, low concentration of E2 (like 0.1 ng/L), could inhibit the growth of heterotrophic nitrifying bacteria. Considering the impact of E2 on heterotrophic nitrifying bacteria, it is necessary to intensify the detection to E2 in the future.
关键词：17β-estradiol; nitration; heterotrophic nitrifying bacteria