Project description:To reveal the transcriptional profiles of Actinobacillus pleuropneumoniae under biofilm and planktonic growth, we established a biofilm-forming culture method and constructed a mutant strain Δpga with defect in biofilm formation. Wild-type and Δpga mutant strains of Actinobacillus pleuropneumoniae strain 4074 were cultured in bottles with shaking for planktonic (WT_PK) and in microplates in static status for biofilm (WT_BF, Δpga), respectively. The bacteria in logarithmic growth period of different culture groups were collected for RNA seq.

2023-05-31 | GSE221940 | GEO

Project description:Actinobacillus indolicus and Actinobacillus porcinus type strain genomes

| PRJEB31492 | ENA

Expression profiles of Actinobacillus pleuropneumoniae 4074 and the qseB/qseC gene-deleted mutant

Project description:To determine the role of Actinobacillus pleuropneumoniae two-component system QseBQseC, we constructed a qseBqseC gene-deleted mutant ΔqseBΔqseC based on the wild type A. pleuropneumoniae 4074. The transcriptional profiles were compared between the A. pleuropneumoniae ΔqseBΔqseC and its parental strain under the normal growth condition using microarray. A total of 44 genes were found differentially expressed (DE) compared to the wild type strain. These functional genes are primarily related to metabolism, cell wall biogenesis, energy, replication and recombination. Further investigations indicated that the type IV pili (Tfp) assembly protein PilM is regulated directly by QseB, and PilM is essential for adherence and virulence. Characterization of the QseBQseC regulon genes will provides new insight into understanding of the relevant signal transduction pathways and prevention of the infection.

2014-08-01 | GSE49812 | GEO

Actinobacillus pleuropneumoniae

Project description:Actinobacillus pleuropneumoniae Assembly

| PRJNA1122341 | ENA

Transcript profiling of Actinobacillus pleuropneumoniae in BALF

Project description:Actinobacillus pleuropneumoniae is the etiologic agent of contagious pleuropneumonia, an economically important disease of commercially reared swine throughout the world. To cause this disease, A. pleuropneumoniae must rapidly overcome porcine pulmonary innate immune defenses. Since bronchoalveolar fluid (BALF) contains many of the innate immune components found in the lung, we examined the gene expression of a virulent serovar 1 strain of A. pleuropneumoniae after exposure to concentrated BALF. This experiment was also carried out with a malT mutant of the same strain.

2009-01-06 | GSE13006 | GEO

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