DETECTION OF QUORUM QUENCHING-PRODUCING BACTERIA FROM RHIZOSPHERE SOIL AS A BIOCONTROL AGENTS

Quorum sensing is known as a communication mechanism among bacteria to control gene expression such bioluminescence, pigmentation, and pathogenicity. quenching inhibition of quorum activity. In order block activity, some produced enzymes which could degrade AHL, AHL-acylase, AHL-lactonase, AHL-oxidase reductase. this study, soil were isolated screened for their These isolates divided into Streptomyces non-Streptomyces isolates. Detection done by using Chromobacterium violaceum an indicator pigment About 10 out 695 shown possess further identified biochemical tests, Gram staining, 16S rRNA sequencing. Four positive showed similarity with sp., 6 Pseudomonas putida, Bacillus pumilus, Enterobacter ludwigii, sp.