Antibacterial activity and genomic characterisation of a novel Brevibacillus laterosporus XJ-24-3 isolated from Xinjiang, China

Brevibacillus laterosporus is a significant probiotic with notable antimicrobial activity. This study employs a genome-guided discovery strategy to elucidate the molecular mechanisms and antimicrobial potential of a novel B. laterosporus isolate against multidrug-resistant pathogens.

Material and Methods

A B. laterosporus strain designated XJ-24-3 was isolated from the soil of a pasture area in Xinjiang, China using the dilution plate method. The XJ-24-3 isolate was identified and characterised by morphology, biochemical properties and 16S rRNA gene sequencing.

Results

The bacterium exhibited bactericidal activity against diverse foodborne pathogens, including methicillin-resistant Staphylococcus aureus. Functional genome annotation revealed catalytic activity and molecular binding domains, signifying energy metabolism and environmental adaptability. Carbohydrate-Active Enzyme profiling demonstrated polysaccharide-processing proficiency, corroborated by Cluster of Orthologous Groups classification finding numerous instances of metabolic gene enrichment. Transporter Classification Database analysis indicated the strain predominantly employed active transport mechanisms for substrate translocation. Bioinformatic mining predicted biosynthetic potential for antimicrobial compounds – bogorol A, laterosporulin and linear azol(in)e-containing peptides – positing XJ-24-3 as a promising source of novel broad-spectrum antimicrobial agents.

Conclusion

This study elucidated the genomic characteristics of the novel XJ-24-3 isolate and uncovered the genetic basis for its antibacterial properties, thereby providing a theoretical foundation for the development of novel antibacterial proteins.

Idioma:: Inglés

Calendario de la edición:: 4 veces al año
Temas de la revista:: Ciencias de la vida, Biología molecular, Microbiología y virología, Ciencias de la vida, otros, Medicina, Medicina veterinaria

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Antibacterial activity and genomic characterisation of a novel Brevibacillus laterosporus XJ-24-3 isolated from Xinjiang, China

Ming Wu

Shuang Chen

Guofei Li

Huimei Zhang

Fushuang Duan

Yufei Zuo

Xuepeng Cai

Jie Li

Qingling Meng

Jun Qiao

Publicado en línea: 17 sept 2025

Recibido: 10 ene 2025

Aceptado: 12 sept 2025

DOI: https://doi.org/10.2478/jvetres-2025-0039

Palabras claveantibacterial activity, biological characterisation, MRSA, whole genome

© 2025 Ming Wu et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Introduction

Material and Methods

Results

Conclusion

Palabras clave
antibacterial activity, biological characterisation, MRSA, whole genome