qsmR encoding an IclR-family transcriptional factor is a core pathogenic determinant of Burkholderia glumae beyond the acyl-homoserine lactone-mediated quorum-sensing system.

The plant pathogenic bacterium Burkholderia glumae causes bacterial panicle blight (BPB) in rice-growing areas worldwide. It has been widely accepted that an acyl-homoserine lactone (AHL)-type quorum sensing (QS) system encoded by tofI and tofR genes (TofIR QS) is a key regulatory mechanism underlying the bacterial pathogenesis of B. glumae.

Complete Genome Sequence Data of Four Strains Isolated from Rice Fields in the United States.

Bacterial panicle blight caused by is a major disease in rice production worldwide. Currently, only a few whole-genome sequences of strains isolated in the United States are available. Here, we report the complete genome sequence of four strains, including three virulent strains (336gr-1, 411gr-6, and 957856-41-c) and the nonpathogenic strain 257sh-1, which were isolated from rice fields in Louisiana (336gr-1, 957856-41-c, and 257sh-1) and Arkansas (411gr-6).

tepR encoding a bacterial enhancer-binding protein orchestrates the virulence and interspecies competition of Burkholderia glumae through qsmR and a type VI secretion system.

The pathogenesis of the rice pathogenic bacterium Burkholderia glumae is under the tight regulation of the tofI/tofR quorum-sensing (QS) system. tepR, encoding a group I bacterial enhancer-binding protein, negatively regulates the production of toxoflavin, the phytotoxin acting as a major virulence factor in B. glumae.

The Virulence Function and Regulation of the Metalloprotease Gene in the Plant-Pathogenic Bacterium .

Bacterial panicle blight caused by is a major bacterial disease of rice. Our preliminary RNA-seq study showed that a serine metalloprotease gene, , is regulated in a similar manner to the genes for the biosynthesis and transport of toxoflavin, which is a known major virulence factor of . null mutants of the virulent strain 336gr-1 did not show a detectable extracellular protease activity, indicating that is the solely responsible gene for the extracellular protease activity detected from this bacterium.

Identification of new regulatory genes involved in the pathogenic functions of the rice-pathogenic bacterium Burkholderia glumae.

Burkholderia glumae is an emerging plant-pathogenic bacterium that causes disease in rice in several of the major rice-producing areas throughout the world. In the southern United States, B. glumae is the major causal agent of bacterial panicle blight of rice and has caused severe yield losses in recent decades.