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RpoN is required for the motility and contributes to the killing ability of Plesiomonas shigelloides
BackgroundRpoN, also known as σ 54 , first reported in Escherichia coli , is a subunit of RNA polymerase that strictly controls the expression of...
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An RpoN-dependent PEP-CTERM gene is involved in floc formation of an Aquincola tertiaricarbonis strain
BackgroundThe floc is a characteristic of microbial aggregate growth, displaying cloudy suspensions in water. Floc formation has been demonstrated in...
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Utilization of L-glutamate as a preferred or sole nutrient in Pseudomonas aeruginosa PAO1 depends on genes encoding for the enhancer-binding protein AauR, the sigma factor RpoN and the transporter complex AatJQMP
BackgroundGlutamate and aspartate are preferred nutrients for a variety of microorganisms. In the case for many Pseudomonas spp., utilization of...
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Function of Burkholderia pseudomallei RpoS and RpoN2 in bacterial invasion, intracellular survival, and multinucleated giant cell formation in mouse macrophage cell line
Melioidosis, a human infectious disease with a high mortality rate in many tropical countries, is caused by the pathogen Burkholderia pseudomallei (B....
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The BDSF quorum sensing receptor RpfR regulates Bep exopolysaccharide synthesis in Burkholderia cenocepacia via interaction with the transcriptional regulator BerB
The polysaccharide Bep is essential for in vitro biofilm formation of the opportunistic pathogen Burkholderia cenocepacia . We found that the Burkholderia...
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Exposure of Legionella pneumophila to low-shear modeled microgravity: impact on stress response, membrane lipid composition, pathogenicity to macrophages and interrelated genes expression
Here, we studied the effect of low-shear modeled microgravity (LSMMG) on cross stress resistance (heat, acid, and oxidative), fatty acid content, and...
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The effect of ArcA on the growth, motility, biofilm formation, and virulence of Plesiomonas shigelloides
BackgroundThe anoxic redox control binary system plays an important role in the response to oxygen as a signal in the environment. In particular,...
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A regulatory network involving Rpo, Gac and Rsm for nitrogen-fixing biofilm formation by Pseudomonas stutzeri
Biofilm and nitrogen fixation are two competitive strategies used by many plant-associated bacteria; however, the mechanisms underlying the formation...
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Biosynthesis and Gene Regulation of Rhamnolipid Congeners
Rhamnolipid congeners have been widely used in agriculture and biomedicine as potent surfactants. They have recently attracted attention due to their...
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Pleiotropic control of antibiotic biosynthesis, flagellar operon expression, biofilm formation, and carbon source utilization by RpoN in Pseudomonas protegens H78
The rhizobacterium Pseudomonas protegens H78 biosynthesizes a number of antibiotic compounds, including pyoluteorin, 2,4-diacetylphloroglucinol, and...
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Genome-scale model of Pseudomonas aeruginosa metabolism unveils virulence and drug potentiation
Pseudomonas aeruginosa is one of the leading causes of hospital-acquired infections. To decipher the metabolic mechanisms associated with virulence...
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Revealing potential functions of hypothetical proteins induced by genistein in the symbiosis island of Bradyrhizobium japonicum commercial strain SEMIA 5079 (= CPAC 15)
BackgroundBradyrhizobium japonicum strain SEMIA 5079 (= CPAC 15) is a nitrogen-fixing symbiont of soybean broadly used in commercial inoculants in...
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Characterization of transcriptional activities at a divergent promoter of the type VI secretion system in enterohemorrhagic Escherichia coli O157:H7
The type VI secretion system (T6SS) is a novel secretion system found in many Gram-negative bacteria that plays a role in bacterial competition,...
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Effect of SPoT-mediated Stringent Response on Biofilm Formation, Stress Resistance and Quorum Sensing in Pseudomonas protegens SN15-2
AbstractThe stringent response (SR) is crucial for the response of bacteria to nutrient deprivation and other stresses. Pseudomonas protegens SN15-2...
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Bacterial Inhibition Mechanism of Rhamnolipid-Modified β-Carotene/Rutinoside Complex Liposomes
In this study, a new cholesterol-free delivery system named RL-βC-Rts was developed using rhamnolipid (RL) as the surfactant and encapsulating both...
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Functional metagenomic analysis of quorum sensing signaling in a nitrifying community
Quorum sensing (QS) can function to shape the microbial community interactions, composition, and function. In wastewater treatment systems, acylated...
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Genome-scale identification and comparative analysis of transcription factors in thermophilic cyanobacteria
BackgroundThe transcription factors (TFs) in thermophilic cyanobacteria might represent a uniquely evolved gene repertoire in light of the strong...
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Genome Analysis of Halomonas elongata Strain 153B and Insights Into Polyhydroxyalkanoate Synthesis and Adaptive Mechanisms to High Saline Environments
Species of the Halomonas genus are gram-negative, aerobic, moderately halophilic bacteria that synthesize polyhydroxyalkanoates (PHAs) and other...
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Role of Two-Component System Networks in Pseudomonas aeruginosa Pathogenesis
Two-component systems (TCS) are the largest family of signaling systems in the bacterial kingdom. They enable bacteria to cope with a wide range of...
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Whole-Genome Sequence and Pathogenicity Analysis of Providencia Heimbachae Causing Diarrhea in Weaned Piglets
Providencia heimbachae was previously identified in piglets with post-weaned diarrhea and associated with hindlimb paralysis. However, the pathogenic...
