Results 1 to 10 of about 7,467 (157)

Twenty‐Five Years of the Environmental Stress Response and the Enduring Power of Yeast in Stress Biology

Yeast, EarlyView.
ABSTRACT All organisms must be able to sense and respond to adverse environments, especially those that threaten cellular integrity. The age of genomics clarified the breadth and specificity of cellular stress responses, including in free‐living microbes directly exposed to a changing environment.
Audrey P. Gasch
wiley   +1 more source

The hns Gene of Escherichia coli Is Transcriptionally Down-Regulated by (p)ppGpp

Microorganisms, 2020
Second messenger nucleotides, such as guanosine penta- or tetra-phosphate, commonly referred to as (p)ppGpp, are powerful signaling molecules, used by all bacteria to fine-tune cellular metabolism in response to nutrient availability.
Anna Brandi, Mara Giangrossi, Attilio Fabbretti, Maurizio Falconi   +3 more
doaj   +1 more source

A Single‐Nucleotide Substitution Generates a de Novo Promoter That Activates a Latent Metabolic Bypass in Escherichia coli

Molecular Microbiology, EarlyView.
A chromosomal mutation allows bypass of deletion of the Escherichia coli fabH gene. The bypass results from creation of a new promoter that drives increased madA transcription, resulting in increased synthesis of acetyl‐acyl carrier protein by decarboxylation of malonyl‐acyl carrier protein.
Qiaoqiao Guo, Qi Zou, Jilong Qin, Makrina Totsika, Yaoqin Hong, John E. Cronan   +5 more
wiley   +1 more source

De novo or Salvage? Nucleotide Availability as a Driver of Bacterial Adaptation and Virulence

MicrobiologyOpen, Volume 15, Issue 4, August 2026.
Bacterial pathogens survive in different host environments by switching between making nucleotides by de novo synthesis and scavenging them from the host. This flexibility supports growth and virulence making nucleotide metabolism an attractive therapeutic target.
Riya Joshi, Alastair G. McEwan, Ulrike Kappler   +2 more
wiley   +1 more source

Mechanisms of Resistance, Insights From Case Reports, and Future Prospects in Mycobacteriophage Therapy

Journal of the Royal Society of New Zealand, Volume 56, Issue 4, August 2026.
Evolution of drug‐resistant mycobacterial infections warrants renewed efforts in identifying more efficient preventive and control strategies as well as alternative treatment options. Interest in phage therapy is regaining significant traction, especially in cases of failed conventional therapy.
Buhari Yusuf, Abdul Malik, Md Shah Alam, Lijie Li, Haftay Abraha Tadesse, Aweke Mulu Belachew, Cuiting Fang, Xirong Tian, Htin Lin Aung, Shuai Wang, Tianyu Zhang   +10 more
wiley   +1 more source

Proteomic Analysis of Lactococcus lactis FM03 Under Prolonged Alkaline Stress

Environmental Microbiology, Volume 28, Issue 7, July 2026.
Overview of alkaline resistance mechanisms in Lactococcus lactis FM03. Sustained growth at pH 8 triggers extensive physiological remodelling, including activation of general stress response proteins, suppression of acid resistance, elevated amino acid production, altered cell wall biosynthesis, and doubling of the cell wall thickness.
Tamara A. L. Bendig, Tjakko Abee, Sjef Boeren, Eddy J. Smid, Oscar van Mastrigt   +4 more
wiley   +1 more source

Metabolism‐Based Biomarkers for Rapid Phenotypic Antibiotic Susceptibility Testing

Advanced Science, Volume 13, Issue 33, 15 June 2026.
Metabolic differences emerging after antibiotic exposure provide rapid phenotypic signals of susceptibility and resistance. This review summarizes metabolic biomarkers for rapid phenotypic AST, associated with nutrient uptake, respiratory activity, metabolic reprogramming, and enzymatic function. ABSTRACT The accelerating global crisis of antimicrobial
Sha Yu, Bayinqiaoge, Xi Lu, Xin Wang, Rongfeng Wang, Yi Li, Shi‐Yang Tang, Chengchen Zhang   +7 more
wiley   +1 more source

Comprehensive and Comparative Transcriptional Profiling of the Cell Wall Stress Response in Bacillus subtilis

Molecular Microbiology, Volume 125, Issue 6, Page 506-545, June 2026.
Transcriptional profiling of the primary cell envelope stress response (CESR) of Bacillus subtilis exposed to a range of cell wall‐targeting antimicrobials, combining RNAseq and high‐resolution tiling arrays. We revealed the complexity of the CESR, the contribution of extracytoplasmic function sigma factors (ECFs) and two‐component signal transduction ...
Qian Zhang, Charlène Cornilleau, Lena Friebel, Sarah Spitzner, Raphael R. Müller, Doreen Meier, Pierre Flores, Cyprien Guérin, Pierre Nicolas, Diana Wolf, Vincent Fromion, Rut Carballido‐López, Thorsten Mascher   +12 more
wiley   +1 more source

Transcription of photosynthetic genes in the plant chloroplast: lessons from bacteria

The Plant Journal, Volume 126, Issue 5, June 2026.
SUMMARY The RNA polymerase that transcribes photosynthetic genes in the plant chloroplast is the largest known transcription enzyme across all domains of life, comprising 21 subunits of bacterial and eukaryotic origin. Recent structural analyses revealed that the core polymerase, inherited from the cyanobacterial ancestor of the chloroplast, is encased
Jessica Moon, Ashley Dudey, Ángel Vergara‐Cruces, William Tasker‐Brown, David Pearce, Michael W. Webster   +5 more
wiley   +1 more source

Bacterial Chromosome Replication and DNA Repair During the Stringent Response

Frontiers in Microbiology, 2020
The stringent response regulates bacterial growth rate and is important for cell survival under changing environmental conditions. The effect of the stringent response is pleiotropic, affecting almost all biological processes in the cell including ...
Anurag Kumar Sinha, Anders Løbner-Olesen, Leise Riber   +2 more
doaj   +1 more source