Microorganisms encounter acid stress during multiple bioprocesses. Microbial species have
therefore developed a variety of resistance mechanisms. The damage caused by acidic …

Gram-positive bacteria possess a myriad of acid resistance systems that can help them to
overcome the challenge posed by different acidic environments. In this review the most …

Lactic acid bacteria (LAB) constitute a heterogeneous group of bacteria that are traditionally
used to produce fermented foods. The industrialization of food bio-transformations increased …

Metabolites, substrates and substrate impurities may be toxic to cells by damaging biological
molecules, organelles, membranes or disrupting biological processes. Chemical stress is …

Since its discovery in 1924 by J Clarke, Streptococcus mutans has been the focus of
rigorous research efforts due to its involvement in caries initiation and progression. Its ability …

Acidogenic and aciduric bacteria have developed several survival systems in various acidic
environments to prevent cell damage due to acid stress such as that on the human gastric …

Protein transport via the Sec translocon represents an evolutionary conserved mechanism
for delivering cytosolically-synthesized proteins to extra-cytosolic compartments. The Sec …

Streptococcus mutans normally colonizes dental biofilms and is regularly exposed to
continual cycles of acidic pH during ingestion of fermentable dietary carbohydrates. The …

To persist in the oral cavity, bacteria must be able to tolerate rapid and substantial
environmental fluctuations, particularly in pH and nutrient source and availability. Various …

LuxS-mediated quorum sensing has recently been shown to regulate important physiologic
functions and virulence in a variety of bacteria. In this study, the role of luxS of Streptococcus …