Stress physiology of lactic acid bacteria

K Papadimitriou, Á Alegría, PA Bron… - Microbiology and …, 2016 - Am Soc Microbiol
Lactic acid bacteria (LAB) are important starter, commensal, or pathogenic microorganisms.
The stress physiology of LAB has been studied in depth for over 2 decades, fueled mostly by …

ppGpp conjures bacterial virulence

ZD Dalebroux, SL Svensson, EC Gaynor… - Microbiology and …, 2010 - Am Soc Microbiol
Like for all microbes, the goal of every pathogen is to survive and replicate. However, to
overcome the formidable defenses of their hosts, pathogens are also endowed with traits …

A bacterial pan-genome makes gene essentiality strain-dependent and evolvable

F Rosconi, E Rudmann, J Li, D Surujon, J Anthony… - Nature …, 2022 - nature.com
Many bacterial species are represented by a pan-genome, whose genetic repertoire far
outstrips that of any single bacterial genome. Here we investigate how a bacterial pan …

The Stringent Response of Staphylococcus aureus and Its Impact on Survival after Phagocytosis through the Induction of Intracellular PSMs Expression

T Geiger, P Francois, M Liebeke, M Fraunholz… - PLoS …, 2012 - journals.plos.org
The stringent response is initiated by rapid (p) ppGpp synthesis, which leads to a profound
reprogramming of gene expression in most bacteria. The stringent phenotype seems to be …

Two small (p) ppGpp synthases in Staphylococcus aureus mediate tolerance against cell envelope stress conditions

T Geiger, B Kästle, FL Gratani, C Goerke… - Journal of …, 2014 - Am Soc Microbiol
The stringent response is a conserved global regulatory mechanism that is related to the
synthesis of (p) ppGpp nucleotides. Gram-positive bacteria, such as Staphylococcus aureus …

Many means to a common end: the intricacies of (p) ppGpp metabolism and its control of bacterial homeostasis

AO Gaca, C Colomer-Winter, JA Lemos - Journal of bacteriology, 2015 - Am Soc Microbiol
In nearly all bacterial species examined so far, amino acid starvation triggers the rapid
accumulation of the nucleotide second messenger (p) ppGpp, the effector of the stringent …

The cop operon is required for copper homeostasis and contributes to virulence in Streptococcus pneumoniae

S Shafeeq, H Yesilkaya, TG Kloosterman… - Molecular …, 2011 - Wiley Online Library
High levels of copper are toxic and therefore bacteria must limit free intracellular levels to
prevent cellular damage. In this study, we show that a number of pneumococcal genes are …

Role of the (p)ppGpp Synthase RSH, a RelA/SpoT Homolog, in Stringent Response and Virulence of Staphylococcus aureus

T Geiger, C Goerke, M Fritz, T Schäfer… - Infection and …, 2010 - Am Soc Microbiol
In most bacteria, nutrient limitations provoke the stringent control through the rapid synthesis
of the alarmones pppGpp and ppGpp. Little is known about the stringent control in the …

Identification of Streptococcus pneumoniae genes associated with hypothiocyanous acid tolerance through genome-wide screening

HL Shearer, PE Pace, LM Smith, PC Fineran… - Journal of …, 2023 - Am Soc Microbiol
Streptococcus pneumoniae is a commensal bacterium and invasive pathogen that causes
millions of deaths worldwide. The pneumococcal vaccine offers limited protection, and the …

The stringent response determines the ability of a commensal bacterium to survive starvation and to persist in the gut

WB Schofield, M Zimmermann-Kogadeeva… - Cell host & …, 2018 - cell.com
In the mammalian gut, bacteria compete for resources to maintain their populations, but the
factors determining their success are poorly understood. We report that the human gut …