Results 71 to 80 of about 8,365 (192)

(p)ppGpp quantification.

, 2015
A. Wild type or relA mutant strains grown at 37°C in the MOPS derivative medium with or without arginine hydroxamate (100 μg/ml) were labeled with H332PO4 for 4 to 5 generations.
Etienne Dervyn (730354), Cyprien Guérin (2586016), Camille Benoist (822757), Philippe Noirot (44983)   +3 more
core   +1 more source

Complementary roles of (p)ppGpp and Spx under heat stress.

, 2020
(A) Heat mediated down-regulation of rrnJp1-lacZ transcription in wild type (BHS220), Δspx (BHS222), (p)ppGpp° (BHS319) and Δspx (p)ppGpp° (BHS766) strains as determined by RT-qPCR. Means and SEM of three independent experiments are shown.
Volkhard Kaever (152216), Gert Bange (811040), Aaron M. Nuss (8582376), Petra Sudzinová (8582385), Libor Krásný (840910), Daniel N. Wilson (59713), Ingo Hantke (8582379), Heinrich Schäfer (8582373), Bertrand Beckert (7941551), Michael Beckstette (683885), Kürşad Turgay (8582388), Kristina Driller (8582382), Petra Dersch (183557), Christian K. Frese (1517512), Wieland Steinchen (5492543)   +14 more
core   +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

Calcium-activated (p)ppGpp Synthetase in Chloroplasts of Land Plants [PDF]

Journal of Biological Chemistry, 2007
The genetic system of chloroplasts, including the machinery for transcription, translation, and DNA replication, exhibits substantial similarity to that of eubacteria. Chloroplasts are also thought to possess a system for generating guanosine 5'-triphosphate ((p)ppGpp), which triggers the stringent response in eubacteria, with genes encoding ...
Tozawa, Y., Nozawa, A., Kanno, T., Narisawa, T., Masuda, S., Kasai, K., Nanamiya, H.   +6 more
openaire   +2 more sources

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

Viable but Nonculturable State, a Survival Strategy for Salmonella in Aquatic Environments

Water and Environment Journal, Volume 40, Issue 2, Page 183-202, May 2026.
Transition of Salmonella from a culturable state to a viable but nonculturable state under various environmental stresses and current methods for detecting viable Salmonella in environmental samples. ABSTRACT In the relentless battle for survival, Salmonella has evolved mechanisms to withstand harsh conditions such as extreme temperatures, fluctuating ...
Sanelisiwe Thinasonke Duze, Musa Marimani, Katlego Mamabolo, Mrudula Patel   +3 more
wiley   +1 more source

Replication of plasmids derived from Shiga toxinconverting bacteriophages in starved Escherichia coli [PDF]

, 2011
The pathogenicity of Shiga toxin-producing Escherichia coli (STEC) depends on the expression of stx genes that are located on lambdoid prophages. Effective toxin production occurs only after prophage induction, and one may presume that replication of the
Nejman, Bożena, Nadratowska-Wesołowska, Beata, Węgrzyn, Alicja, Węgrzyn, Grzegorz, Szalewska-Pałasz, Agnieszka   +4 more
core  

Kontrollierter Transport und lichtinduzierte Freisetzung von Magic Spot Nukleotiden in Escherichia coli

Angewandte Chemie, Volume 138, Issue 15, 6 April 2026.
We synthesized photocaged, clickable and isotope‐labeled “magic spot” Nucleotides and delivered them into Escherichia coli comparing different approaches. Light‐controlled release inside living cells enabled tracking of their conversion from pppGpp to ppGpp by capillary electrophoresis mass spectrometry and revealed their impact on the growth rate of a
Christoph Popp, Patrick Moser, Anselm Schwoerbel, Xinwei Liu, Johannes Freitag, Pinku Sarmah, Isabel Prucker, Robert Zscherp, Xuan Wang, Philipp Klahn, Hans‐Georg Koch, Gert Bange, Henning J. Jessen   +12 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