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Exploring the Application Potential of Aquaculture Sewage Treatment of Pseudomonas chengduensis Strain WD211 Based on Its Complete Genome

文献类型： 外文期刊

作者： Peng, Huanlong 1 ; Wu, Hangtao 1 ; Gu, Wenjie 1 ; Lu, Yusheng 1 ; Qin, Hongjie 3 ; You, Yi 3 ; Zhou, Donglai 4 ; Wang, Dan 1 ; Sun, Lili 1 ; Zhou, Changmin 1 ; Zheng, Yanling 1 ;

作者机构： 1.Guangdong Acad Agr Sci, Inst Agr Resources & Environm, Key Lab Nutrient Cycling & Farmland Conservat Guan, Minist Agr,Key Lab Plant Nutr & Fertilizer South R, Guangzhou 510640, Peoples R China

2.Maoming Branch, Guangdong Lab Lingnan Modern Agr, Maoming 525000, Peoples R China

3.Guangdong Acad Agr Sci, Environm Hort Res Inst, Guangzhou 510640, Peoples R China

4.Guangdong Acad Agr Sci, Sericultural & Agrifood Res Inst, Guangzhou 510610, Peoples R China

关键词： Pseudomonas chengduensis; complete genome; purification capability; antibiotic resistance; aquaculture sewage

期刊名称：GENES （ 影响因子：3.5； 五年影响因子：3.9 ）

ISSN：

年卷期： 2023 年 14 卷 12 期

页码：

收录情况： SCI

摘要： Pseudomonas chengduensis is a new species of Pseudomonas discovered in 2014, and currently, there is a scarcity of research on this bacterium. The P. chengduensis strain WD211 was isolated from a fish pond. This study investigated the purification capability and environmental adaptability of strain WD211 in wastewater and described the basic features and functional genes of its complete genome. According to the results, the sewage treated with strain WD211 showed a decrease in concentration of 18.12% in total nitrogen, 89.39% in NH4+, 62.16% in NO3-, 79.97% in total phosphorus, and 71.41% in COD after 24 h. Strain WD211 is able to survive in a pH range of 6-11. It shows resistance to 7% sodium chloride and different types of antibiotics. Genomic analysis showed that strain WD211 may remove nitrogen and phosphorus through the metabolic pathway of nitrogen assimilation and phosphorus accumulation, and that it can promote organic decomposition through oxygenase. Strain WD211 possesses genes for producing betaine, trehalose, and sodium ion transport, which provide it with salt tolerance. It also has genes for antibiotic efflux and multiple oxidases, which give it antibiotic resistance. This study contributes to the understanding of the sewage treatment ability and potential applications of P. chengduensis.

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