Abstract
Abstract A newly characterized actinobacterial strain, designated B20, displayed remarkable tolerance to extreme pH and NaCl conditions, while showcasing a diversity in carbon source utilization. Phylogenetic analysis confirmed its taxonomic assignment within the genus Nocardiopsis. However, several physiological features were found to differentiate B20 from its most closely related Nocardiopsis species. Notably, Nocardiopsis sp. B20 demonstrated potent and selective antifungal activity against various micro-fungi, suggesting its potential as a valuable source for targeted antifungal compounds. Ethyl acetate extract contains a bioactive compound, B20-1, displaying antifungal properties. Chemical revelations indicated the presence of sugars and polycyclic aromatic hydrocarbons (PAHs) in B20-1 compound. The discovery of antifungal PAHs derived from natural sources presents promising opportunity for addressing fungal infections while mitigating environmental concerns and resistance risks associated with synthetic fungicides. However, further research is warranted to evaluate efficacy, assess ecological impacts, and explore potential applications across diverse industries.
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