Biofilm formation by Bacillus cereus is influenced by PlcR, a pleiotropic regulator

Article Abstract:

A study investigated the role of PlcR in biofilm formation by Bacillus cereus strain ATCC 14579 on polystyrene, which is promoted by low-nutrient conditions and is related to the production of a biosurfactant. PlcR, a pleiotropic regulator, is activated by a small diffusible peptide acting as a quorum-sensing effector, controlling the expression of a variety of genes.

France, Genetic aspects, Bacillus cereus

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Characterization of biofilm formation by clinically relevant serotypes of group A Streptococci

Article Abstract:

The basic parameters of Streptococcus pyogenes in vitro biofilm formation is analyzed using Streptococcus epidermidis as a biofilm-positive control and it is shown that group A Streptococcus (GAS) forms monospecies biofilms in vitro. The methods and results reveals that standardized analyses of GAS biofilms and their impact on GAS pathogeneicity are now feasible.

Streptococcus pyogenes, Biological research, Biology, Experimental

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