ABSTRACT: Phylogenetic characterization and genome sequence analysis of Burkholderia glumae strains isolated in Thailand as the causal agent of rice bacterial panicle blight
Project description:RNA-seq based transcriptome analysis was employed to understand the genome-wide expression patterns of B. glumae BGR1 under infected rice panicle tissue.
Project description:Burkholderia glumae causes rice grain rot and sheath rot by producing toxoflavin, whose expression is regulated by quorum sensing (QS). The QS systems of the bacterium rely on N-octanoyl homoserine lactone, synthesized by TofI and its cognate receptor TofR, to activate toxoflavin biosynthesis genes and an IclR-type transcriptional regulator gene, qsmR. To understand genome-wide transcriptional profiling of QS signaling, we employed RNA-Seq of the wild type Burkholderia glumae BGR1 and two QS-defective mutants, BGS2 (BGR1 tofI::Ω) and BGS9 (BGR1 qsmR::Ω), with two different types of culture conditions including 6hr liquid culture (before onset QS) and 10hr liquid culture (after onset QS).
Project description:Burkholderia glumae causes rice grain rot and sheath rot by producing toxoflavin, whose expression is regulated by quorum sensing (QS). The QS systems of the bacterium rely on N-octanoyl homoserine lactone, synthesized by TofI and its cognate receptor TofR, to activate toxoflavin biosynthesis genes and an IclR-type transcriptional regulator gene, qsmR. To understand genome-wide transcriptional profiling of QS signaling, we employed RNA-Seq of the wild type Burkholderia glumae BGR1 and two QS-defective mutants, BGS2 (BGR1 tofI::Ω) and BGS9 (BGR1 qsmR::Ω), with two different types of culture conditions including 6hr liquid culture (before onset QS) and 10hr liquid culture (after onset QS). 3 samples examined: Burkholderia glumae BGR1 wild type, and two QS-defective mutants, BGS2 (BGR1 tofI::Ω) and BGS9 (BGR1 qsmR::Ω). Two conditions: cultured in LB media for 6hrs or 10hrs.
