ANTAGONISTIC POTENTIAL OF THE WEISSELLA CIBARIA STRAIN AGAINST OPPORTUNISTIC PATHOGENIC BACTERIA AND PHYTOPATHOGENIC FUNGI

Objective: The antimicrobial activity of the Weissella cibaria culture against opportunistic bacteria and phytopathogenic fungi was studied. Method: Antimicrobial activity was assessed using the drop-spot method. Antifungal activity was evaluated using the agar block method. Results: High activity was demonstrated against Proteus morganii 399 with a growth inhibition zone of 39 mm, Proteus mirabilis - 42 мм, against Candida albicans 40 mm and Pseudomonas aeruginosa 32 mm. Antagonistic activity against phytopathogenic fungi was noted for Verticillium dahliae – 40 mm, Aspergillus flavus – 32 mm, Alternaria alternata – 30 mm, Aspergillus oryzae – 28 mm, and Aspergillus oryzae – 25 mm. Novelty: These results show that the strain can suppress bacteria, yeasts and filamentous fungi, which makes it a promising candidate for biocontrol agents, food preservation and probiotic development.

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