Abstract

Nurtanny, Anthoni Agustien* and Akmal Djamaan

ABSTRACT

Bruguiera gymnorrhiza is one of mangrove plants that has potential as a producer of antibacterial compound. To determine the extent of endophytic bacterial activity in B. gymnorrhiza then it is necessary to test the activity. This study aims to determine bacterial endophytic bacteria B. gymnorrhiza bacteria that produce antibacterial and the extent to which potential antibacterial activity. This research used survey method with purposive sampling and experiment in laboratory. The results of this study obtained eighteen bacterial endophytic bacteria potentially against Escherichia coli test bacteria, Pseudomonas aeruginosa, Staphylococcus aureus, and Bacillus subtilis. Of the eighteen potential endophytic bacterial isolates were obtained two isolates with very strong inhibitory category and one strong category against test bacteria. Characteristics of these three potential isolates were two groups of Gram negative bacteria and one group of Gram-positive bacteria.