Antimicrobial Activity of Red Sea Weed Ceramium diaphanum Against Pathogenic Bacteria

In the present study, antimicrobial activity of the extracts against pathogenic bacteria and fungi was performed by agar diffusion method.It exhibited potent activity against all tested microorganisms.The ethanol and chloroform extracts demonstrated significant antibacterial activity against various pathogenic bacteria, including E. coli, P. aeruginosa, S. aureus, V. cholerae, and methicillin-resistant S. aureus (MRSA).These results may be helpful for use of this seaweed in the health care.