Pleiotropic Effects of c-di-GMP Content in Pseudomonas syringae

Reduced Intracellular c-di-GMP Content Increases Expression of Quorum Sensing-Regulated Genes in Pseudomonas aeruginosa

Cyclic-di-GMP (c-di-GMP) is an intracellular secondary messenger which controls the biofilm life cycle in many bacterial species. High intracellular c-di-GMP content enhances biofilm formation via the reduction of motility and production of biofilm matrix, while low c-di-GMP content in biofilm cells leads to increased motility and biofilm dispersal. While the effect of high c-di-GMP levels on b...

Bacterial c-di-GMP Is an Immunostimulatory

The Oxidative Stress Agent Hypochlorite Stimulates c-di-GMP Synthesis and Biofilm Formation in Pseudomonas aeruginosa

The opportunistic human pathogen Pseudomonas aeruginosa is able to survive under a variety of often harmful environmental conditions due to a multitude of intrinsic and adaptive resistance mechanisms, including biofilm formation as one important survival strategy. Here, we investigated the adaptation of P. aeruginosa PAO1 to hypochlorite (HClO), a phagocyte-derived host defense compound and fre...

A chemical proteomics approach to identify c-di-GMP binding proteins in Pseudomonas aeruginosa.

In many bacteria, high levels of the ubiquitous second messenger c-di-GMP have been demonstrated to suppress motility and to promote the establishment of surface-adherent biofilm communities. While molecular mechanisms underlying the synthesis and degradation of c-di-GMP have been comprehensively characterized, little is known about how c-di-GMP mediates its regulatory effects. In this study, w...

The characterization of a cyclic-di-GMP (c-Di-GMP) pathway leads to a new tool for studying c-Di-GMP metabolic genes.

Second messengers play an integral role in regulating a wide variety of pathways in response to triggers from the extracellular milieu. The intracellular second messenger cyclic diguanylate (c-di-GMP) has been shown to regulate microbial adaptation to extracellular environments in myriad ways. Primarily studied in Gram-negative bacteria thus far, c-di-GMP regulates motility, biofilm formation, ...