A newly characterized strain, Bacillus safensis LG01, is emerging as a high-value microbial candidate for biotechnology, sustainable agriculture, and probiotic development. According to a comprehensive genomic and phenotypic study, this strain possesses an exceptional arsenal of metabolic, antimicrobial, and ecological adaptation features.
Researchers sequenced the complete circular chromosome of B. safensis LG01 and uncovered 13 secondary metabolite biosynthetic gene clusters, including pathways linked to lipopeptides, β-lactones, terpenes, and ribosomally synthesized peptides. Genome mining also revealed 144 carbohydrate-active enzymes, highlighting its strong ability to degrade complex carbohydrates and thrive in demanding environments.
Phenotypically, LG01 displayed broad-spectrum antifungal and selective antibacterial activity, showing strong inhibition of Legionella pneumophila, Listeria monocytogenes, and Ralstonia solanacearum. The strain also demonstrated powerful protease and cellulase activity, along with robust biofilm formation—key traits for colonization and ecological persistence.
Further comparative genomic analysis revealed 78 strain-specific genes, many associated with sporulation, bacteriocin immunity, and metabolic adaptability. The study also identified positive selection signals in membrane- and transcription-related genes, indicating evolutionary fine-tuning for ecological fitness.
Importantly, LG01 harbors only two intrinsic antibiotic resistance loci and lacks plasmids, reducing risks related to horizontal gene transfer. Safety assessments predicted the strain to be non-pathogenic to humans.
Overall, Bacillus safensis LG01 stands out as a highly promising candidate for biocontrol applications, plant-associated probiotics, and potential industrial enzyme production. The study highlights its versatility and sets the stage for future in-field trials and commercial exploration.
Reference
Yang, L., Shuai, Y., Ren, J., Yang, Y., Jiang, Z., Lu, Y., & Ge, Z. (2025). Integrated Genomic and Phenotypic Analysis of Bacillus safensis LG01 Highlights Its Prospects in Biotechnology and Biocontrol. Microorganisms, 13(11), 2605. https://doi.org/10.3390/microorganisms13112605
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