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Effect of the Aerobic Denitrifying Bacterium Pseudomonas furukawaii ZS1 on Microbiota Compositions in Grass Carp Culture Water

文献类型： 外文期刊

作者： Gong, Wangbao 1 ; Gao, Shuwei 1 ; Zhu, Yun 1 ; Wang, Guangjun 1 ; Zhang, Kai 1 ; Li, Zhifei 1 ; Yu, Ermeng 1 ; Tian, Jing 1 ;

作者机构： 1.Chinese Acad Fishery Sci, Pearl River Fisheries Res Inst, Key Lab Trop & Subtrop Fishery Resource Applicat, Minist Agr, Guangzhou 510380, Peoples R China

2.Guangdong Ecol Remediat Aquaculture Pollut Res Ct, Guangzhou 510380, Peoples R China

3.Guangdong Med Univ, Dongguan Key Lab Med Bioact Mol Dev & Translat Re, Dongguan 523808, Peoples R China

4.Guangdong Meilikang Biosci Ltd, Res & Dev Ctr, Dongguan 523808, Peoples R China

关键词： pond microbiota; Pseudomonas furukawaii; nitrogen cycle; grass carp culture; high-throughput sequencing; aquaculture

期刊名称：WATER （ 影响因子：3.103； 五年影响因子：3.229 ）

ISSN：

年卷期： 2021 年 13 卷 10 期

页码：

收录情况： SCI

摘要： Background: Although functional bacteria are widely used in aquaculture water treatment, whether they affect the indigenous microbiota and whether the impact is persistent remain unclear. Therefore, we aimed to explore the denitrification effect of Pseudomonas furukawaii ZS1 isolated from a grass carp culture pond in nitrogen-rich aquaculture water, and determine whether its effect on the microbiota structure of the aquaculture water was persistent. Methods: Three each of treatment and control groups were set up, and P. furukawaii ZS1 was added to the treatment group. The concentrations of ammonia nitrogen, nitrite, and nitrate, and the pH of each sample were measured for eight consecutive days. Changes of microbiota composition in the water were analysed via high-throughput sequencing. Results: Ammonia, nitrite, and nitrate concentrations were substantially lower in the treatment group than in the control group. There were significant differences in the microbiota structure between treatment and control groups, especially on days 2-7 after adding P. furukawaii ZS1. Furthermore, significantly enriched bacterial genera in the treatment group were initially higher in number than inhibited genera, but subsequently reverted to being lower in number. Conclusions: These results provide theoretical guidance for the effective use of P. furukawaii ZS1 to control aquaculture water.

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