10.22376/ijpbs.2019.10.1.p1-12 Volume 6 Issue 1 2015 (January - March) lessThan i greaterThan Xanthomonas oryzae lessThan /i greaterThan pv oryzae (Xoo) is the causal agent of leaf blight disease of rice. The use phyllosphere bacteria of rice plant as biocontrol agent is an alternative ecofriendly strategy to control Xoo. The aims of this study were to isolate and screen phyllosphere bacteria of rice plant which has an ability to produce bioactive compounds against Xoo. A total of 400 phyllosphere bacterial isolates were obtained from rice plant leaves, 171 isolates produced bioactive compounds that inhibited lessThan i greaterThan Xoo lessThan /i greaterThan , and 79 isolates performed negative response of hypersensitivity on tobacco leaf and 57 isolates among them showed negative pathogenicity on rice leaf. Molecular identification based on 16S rRNA genes of nine non-pathogenic isolates revealed that 6 isolates were identified as genus lessThan i greaterThan Bacillus lessThan /i greaterThan , whereas isolates BFF62, BFV63, and BFF75 were identified as lessThan i greaterThan Myroides odoratimimus, Pontibacter niistensis lessThan /i greaterThan , and lessThan i greaterThan Delftia tsuruhatensis lessThan /i greaterThan , respectively. Isolate BFF84 that showed the highest anti- lessThan i greaterThan Xoo lessThan /i greaterThan activity was identified as lessThan i greaterThan Bacillus aerophilus lessThan /i greaterThan NI PUTU RATNA AYU KRISHANTI, ARIS TRI WAHYUDI AND ABDJAD ASIH NAWANGSIH Phyllosphere bacteria, bioactive compound, Xanthomonas oryzae pv oryzae (Xoo), anti-Xoo, 16S rRNA. 801-810