| dc.description.abstract | rv[angrove fo rest plays an important role as a buffer area of terrestrial and marine ecosystems, reduces
abrasion by sea water, provides food and nutrients for several species of marine animals, and becomes
source of microbes, including endophytic bacteria. The current decline in mangrove land area greatly
affects the habitat of endophytic microbes that live in these plants. T he objective of this research was to
stud), the diversity and pot(c:ntialit)' of endophytic bacteria form 2 genera of tnangrovcs,Avicmnia sp. and
Rhi~pbom sp. as biocontrol agent and plant growth promoters. Samples of plant were taken from four
differcnt coastal areas of mangrove namely Jakarta, Tndramayu-W'cst Jaya, Yogyakarta, and BanyuwangiEa:>
t Java. Bacterial cndophytcs were isolated from the aerial roots of plant by surface sterilization method
using natrium hypochlorite and alcohol, to be further cultured on three different types of growing media,
Tryptic Soy Agar (TSA), Nutrient Agar (NA), Kings 'B (KE) medium. The results showed that more than
769 isolates of endophytic bacteria were obtained from four areas of mangrove plants. A total of 542
endophytic bacterial isolates (70%1 of 769 isolates) showed negative reaction after hemolysis test and 403
bacterial isolates (74% of 542 isolates) showed negative reaction after hypersensitive test. After screening
lcst, a total of 13 selected isolates of endophytic bacteria were identihl--<1 fot their potcntiality as biocontrol
ageIlls againsl planl pUlhogenic fungi Pllj/op})//;OTa fl)iownae wlut:r iu vitro tt:;t. | id |
