Antimicrobial Activity of Endophyte Bacteria Isolated from Seaweed (Padina sp.) on the Growth of Bacteria Escherichia coli and Staphylococcus aureus

Padina sp. seaweed is one of the Chlorophyta which has potential as an antimicrobial. This study aimed to determine antimicrobial activity endophytic bacteria against Escherichia coli and Staphylococcus aureus. The method used in this research descriptive qualitative. results isolation microbes obtained were seven isolates DP1, DP2, DP3, DP4, AP1, AP2, AP3. test showed that had antimicrobials. Incubation time for 24 hours diameter inhibition zone formed was 9.75 – 11.55 mm S. aureus 7.15 10.0 bacteria. E. coli. AP3 DP1 a wider zone, presumably because their antibacterial substances higher than other isolates.