Complete genome analysis of Pseudomonas furukawaii ZS1 isolated from grass carp (Ctenopharyngodon idellus) culture water
文献类型： 外文期刊
作者： Niu, Shuhui 1 ; Gong, Wangbao 1 ; Li, Zhifei 1 ; Zhang, Kai 1 ; Wang, Guangjun 1 ; Yu, Ermeng 1 ; Xia, Yun 1 ; Tian, Jingjing 1 ; Li, Hongyan 1 ; Ni, Jiajia 4 ; Xie, Jun 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, Guangdong, Peoples R China
2.Guangdong Ecol Remediat Aquaculture Pollut Res Ctr, Guangzhou, Peoples R China
3.Shanghai Ocean Univ, Natl Demonstrat Ctr Expt Fisheries Sci Educ, Shanghai, Peoples R China
4.Guangdong Meilikang Biosci Ltd, Res & Dev Ctr, Dongguan, Peoples R China
5.Guangdong Med Univ, Dongguan Key Lab Med Bioact Mol Dev & Translat Res, Dongguan, Peoples R China
关键词： aerobic nitrate reduction; Pseudomonas furukawaii ZS1; culture water; organic nitrogen; aerobic conditions
期刊名称：GENOME （ 影响因子：3.1； 五年影响因子：2.6 ）
ISSN： 0831-2796
年卷期： 2023 年 66 卷 1 期
页码：
收录情况： SCI
摘要： Pseudomonas furukawaii ZS1, isolated from grass carp (Ctenopharyngodon idellus) culture water, exhibits efficient aerobic nitrate reduction without nitrite accumulation; however, the molecular pathway underlying this aerobic nitrate reduction remains unclear. In this study, we constructed a complete genome map of P. furukawaii ZS1 and performed a comparative genomic analysis with a reference strain. The results showed that P. furukawaii ZS1 genome was 6 026 050 bp in size and contained 5427 predicted protein-coding sequences. The genome contained all the necessary genes for the dissimilatory nitrate reduction to ammonia pathway but lacked those for the assimilatory nitrate reduction pathway; additionally, genes that convert ammonia to organic nitrogen were also identified. The presence of putative genes associated with the nitrogen and oxidative phosphorylation pathways implied that ZS1 can perform respiration and nitrate reduction simultaneously under aerobic conditions, so that nitrite is rapidly consumed for detoxication by denitrification. The aim of this study is to indicate the great potential of strain ZS1 for future full-scale applications in aquaculture. This work provided insights at the molecular level on the nitrogen metabolic pathways in Pseudomonas species. The understanding of nitrogen metabolic pathways also provides significant molecular information for further Pseudomonas species modification and development.
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