GENETIC AND PHYSIOLOGICAL CHARACTERISTICS OF LACTOBACTERIA

Lactic acid bacteria (LAB) are a diverse group of microorganisms widely recognized for their significant roles in food fermentation, biotechnology, and human health. This study examines the genetic and physiological characteristics of LAB, emphasizing their metabolic diversity, adaptability, and functional properties. Recent advances in genomics and omics technologies have revealed that LAB possess specialized gene clusters responsible for carbohydrate metabolism, stress tolerance, and the production of bioactive compounds such as bacteriocins. These genetic features directly influence their physiological behavior, enabling survival in harsh environments and enhancing their probiotic potential. Furthermore, LAB contribute to food safety, quality, and preservation through the synthesis of antimicrobial metabolites. Their interaction with the gut microbiota also supports immune modulation and intestinal health. Overall, understanding the genetic and physiological mechanisms of LAB provides a foundation for their effective application in food, medical, and biotechnological industries.