Activity of heterotrophic bacteria from marine area of Siak District against pathogenic bacteria

[摘要] The objective of this research was to isolate and to characterize heterotrophic bacteria in the marine area of Siak District of Riau Province based on sequence 16S rRNA and to examine the antagonism activity against pathogenic bacteria (Vibrio sp.,Aeromonassp. and Pseudomonas sp.). Water samples were collected from two sea waters sites: waters with salinity of 15 ppt (station 1) and that at salinity of 27 ppt (station 2). Total heterotroph count in station 1 (7.04107 cfu/mL) was higher than that in station 2 (6.04107 cfu/mL). Antagonism test indicated that nine isolates (RM3, RM4, RM5, RM6, RM8, RM11, RL15, RL17 and RL 24) had potency in inhibiting the growth of tested pathogens.

[发布机构] Department of Marine Science, Faculty of Fisheries and Marine Science, Riau University, Indonesia^1

[效力级别] 农业科学

[关键词] 16S rRNA;Heterotrophic bacterias;Heterotrophs;Marine areas;Pathogenic bacterium;Pseudomonas sp;Vibrio sp;Water samples