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Comparative Analysis of the Probiotic Features of Lysinibacillus and Enterobacter Strains Isolated from Gut Tract of Triploid Cyprinid Fish

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Journal Curr Microbiol
Date 2025 Jan 18
PMID 39825897
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Abstract

Gut mucosal immunity of teleost is mainly governed by mucosa-associated lymphoid tissues (MALT) and indigenous microbiota on mucosal surfaces of gut tract, which can confer protection against pathogenic invasion. However, the probiotic features of bacterial isolates from gut tract of triploid cyprinid fish (TCF) were largely unclear. In this study, Lysinibacillus and Enterobacter strains were isolated for probiotic identification. Whole genome sequencing (WGS) analysis indicated that Lysinibacillus and Enterobacter isolates possessed a variety of functional genes associated with probiotic features. Biofilm-forming activity (BFA) were one of the most important probiotic features, which can enable probiotic strains to communicate with indigenous microbiota by forming sessile community and then confer protection against stressors and invading pathogens. In this study, Lysinibacillus and Enterobacter isolates displayed high levels of BFA, hydrophobicity as well as aggregating potentials. Moreover, supernatants of probiotic isolates not only decreased pathogenic BFA and growth activity, but also showed high decomposing activity to macronutrients. These results indicated that probiotic isolates from gut tract of TCFs may pose protective roles in health of farmed fish.

References
1.
Kraemer S, Ramachandran A, Perron G . Antibiotic Pollution in the Environment: From Microbial Ecology to Public Policy. Microorganisms. 2019; 7(6). PMC: 6616856. DOI: 10.3390/microorganisms7060180. View

2.
Xiong N, Kuang X, Fang Z, Ou J, Li S, Zhao J . Transcriptome analysis and co-expression network reveal the mechanism linking mitochondrial function to immune regulation in red crucian carp (Carassius auratus red var) after Aeromonas hydrophila challenge. J Fish Dis. 2022; 45(10):1491-1509. DOI: 10.1111/jfd.13677. View

3.
Salzano F, Marino L, Salzano G, Botta R, Cascone G, Fiorenza U . Microbiota Composition and the Integration of Exogenous and Endogenous Signals in Reactive Nasal Inflammation. J Immunol Res. 2018; 2018:2724951. PMC: 6008798. DOI: 10.1155/2018/2724951. View

4.
Plessas S, Nouska C, Karapetsas A, Kazakos S, Alexopoulos A, Mantzourani I . Isolation, characterization and evaluation of the probiotic potential of a novel Lactobacillus strain isolated from Feta-type cheese. Food Chem. 2017; 226:102-108. DOI: 10.1016/j.foodchem.2017.01.052. View

5.
Soares M, Martinez R, P R Pereira E, Balthazar C, Cruz A, Ranadheera C . The resistance of Bacillus, Bifidobacterium, and Lactobacillus strains with claimed probiotic properties in different food matrices exposed to simulated gastrointestinal tract conditions. Food Res Int. 2019; 125:108542. DOI: 10.1016/j.foodres.2019.108542. View