Isolation, Molecular Identification and Antibacterial Potential of Marine Bacteria from Deep Atlantic Ocean of Morocco

en Isolation, Molecular Identification and Antibacterial Potential of Marine Bacteria from Deep Atlantic Ocean of Morocco Background: Antibiotic resistance is an important concern for the public health authorities at global level. It is detrimental to human and environmental ecosystems, thus, there is a big need for natural bioactive compounds. In this work, we aimed to find out biomolecules derived from marine bacteria that may constitute an alternative to antibiotics. Methods: We isolated and identified thirty one marine bacteria collected from deep ocean water in central coast of Safi city, Morocco. Then, we induced biomolecules production in six marine bacterial strains. The extracts were tested for their antibacterial activity against gram-negative and gram-positive bacteria such as Escherichia coli ATCC 25922, Staphylococcus aureus ATCC 33592 and Listeria monocytogenes ATCC 19117. Furthermore, we partially analyzed the chemical composition of these biomolecules and evaluated their sensibility to different temperatures. Results: The six marine bacteria were able to produce molecules which inhibited the three pathogenic strains with high inhibition zones reaching 27 mm. These molecules were characterized by heat stability from 60 to 121°C relying on each strain. Conclusion: The produced molecules may offer a great potential to pharmaceutical industries as they may constitute an alternative to antibiotics that are becoming less effective due to the emergence of drugs resistance. Antibacterial activity, Antibiotic resistance, Marine bacteria, Marine biomolecules 206 215 https://www.ajmb.org/En/Article.aspx?id=60506 https://www.ajmb.org/PDF/En/FullText/60506.pdf AsmaaChbelLaboratory of Physiopathology, Molecular Genetics & Biotechnology, Faculty of Sciences Ain Chock, Research Center of Health & Biotechnology, Hassan II University of Casablanca, 20100 Casablanca, Morocco91880JorgeRodriguez-CastroLaboratory of Molecular Systematics, Department of Biochemistry & Molecular Biology, CIQUS University of Santiago de Compostela, Santiago, Spain91881JavierQuinteiroLaboratory of Molecular Systematics, Department of Biochemistry & Molecular Biology, CIQUS University of Santiago de Compostela, Santiago, Spain91882ManuelRey-MéndezLaboratory of Molecular Systematics, Department of Biochemistry & Molecular Biology, CIQUS University of Santiago de Compostela, Santiago, Spain91883AurelioSerrano DelgadoInstitute of Plant Biochemistry and Photosynthesis (IBVF), CSIC-University of Sevilla, 41092 Seville, Spain91884AbdelazizSoukriLaboratory of Physiopathology, Molecular Genetics & Biotechnology, Faculty of Sciences Ain Chock, Research Center of Health & Biotechnology, Hassan II University of Casablanca, 20100 Casablanca, Morocco91885BouchraEl KhalfiLaboratory of Physiopathology, Molecular Genetics & Biotechnology, Faculty of Sciences Ain Chock, Research Center of Health & Biotechnology, Hassan II University of Casablanca, 20100 Casablanca, Morocco91886