Results 101 to 110 of about 5,940 (209)

An evolutionary optimization of a rhodopsin-based phototrophic metabolism in Escherichia coli

Microbial Cell Factories, 2017
Background The expression of the Gloeobacter rhodopsin (GR) in a chemotrophic Escherichia coli enables the light-driven phototrophic energy generation. Adaptive laboratory evolution has been used for acquiring desired phenotype of microbial cells and for
Hyun Aaron Kim, Hyun Ju Kim, Jihoon Park, Ah Reum Choi, Kyoo Heo, Haeyoung Jeong, Kwang-Hwan Jung, Yeong-Jae Seok, Pil Kim, Sang Jun Lee   +9 more
doaj   +1 more source

Towards the control of biofilm formation in Anabaena (Nostoc) sp. PCC7120: novel insights into the genes involved and their regulation

New Phytologist, Volume 247, Issue 4, Page 1805-1825, August 2025.
Summary Cyanobacteria are major components of biofilms in light‐exposed environments, contributing to nutrient cycling, nitrogen fixation and global biogeochemical processes. Although nitrogen‐fixing cyanobacteria have been successfully used in biofertilization, the regulatory mechanisms underlying biofilm formation remain poorly understood.
Irene Olivan‐Muro, Jorge Guío, Germán Alonso‐Tolo, Emma Sevilla, María F. Fillat   +4 more
wiley   +1 more source

The thermosensory diguanylate cyclase (tdcA)

, 2016
Biofilm production in Pseudomonas aeruginosa is regulated by the intracellular secondary messenger cyclic diguanylate (c-di-GMP). C-di-GMP is produced by diguanylate cyclases (DGCs) and degraded by phosphodiesterases (PDEs). C-di-GMP controls motility, biofilm formation and virulence factor production in many bacteria.
openaire   +2 more sources

QSCNAS: A platform for quorum sensing and quenching bacteria analysis in global wastewater treatment plants

iMeta, Volume 4, Issue 3, June 2025.
This study identifies the potential quorum sensing (QS) bacteria in wastewater treatment plants (WWTPs) and constructs a QS communication network through the establishment of a local QS bacterial database with six languages and the analysis of over 1000 activated sludge microbiome samples collected from 269 WWTPs.
Yong‐Chao Wang, Sen Wang, Ya‐Hui Lv, Can Wang   +3 more
wiley   +1 more source

DhhP, a Cyclic di-AMP Phosphodiesterase of Borrelia burgdorferi, Is Essential for Cell Growth and Virulence [PDF]

, 2014
Cyclic di-AMP (c-di-AMP) is a recently discovered second messenger in bacteria. Most of work on c-di-AMP signaling has been done in Gram-positive bacteria, firmicutes, and actinobacteria, where c-di-AMP signaling pathways affect potassium transport, cell
Fang, Xin, Gomelsky, Mark, Lawlis, Gavin B., Lou, Yongliang, Troxell, Bryan, Yang, X. Frank, Ye, Meiping, Zhang, Jun-Jie, Zhou, Yan   +8 more
core   +1 more source

Serine Hydroxymethyltransferase ShrA (PA2444) Controls Rugose Small-Colony Variant Formation in Pseudomonas aeruginosa

Frontiers in Microbiology, 2018
Pseudomonas aeruginosa causes many biofilm infections, and the rugose small-colony variants (RSCVs) of this bacterium are important for infection. We found here that inactivation of PA2444, which we determined to be a serine hydroxymethyltransferase ...
Mingming Pu, Lili Sheng, Sooyeon Song, Ting Gong, Thomas K. Wood   +4 more
doaj   +1 more source

AmrZ is a major determinant of c-di-GMP levels in Pseudomonas fluorescens F113 [PDF]

, 2018
The transcriptional regulator AmrZ is a global regulatory protein conserved within the pseudomonads. AmrZ can act both as a positive and a negative regulator of gene expression, controlling many genes implicated in environmental adaption.
A Mortazavi, A Navazo, A Schäfer, AB Roy, AD Tischler, AH Tart, B Langmead, C Muriel, C Reichhardt, C Wei, CJ Jones, CJ Jones, CJ Jones, CW Phippen, D Amikam, E Barahona, E Barahona, E Peeters, EA Waligora, EO King, F Martinez-Granero, F Martinez-Granero, F Martinez-Granero, F Martinez-Granero, FM Scher, GL Winsor, H Li, HA Prada-Ramirez, ID Hay, IT Paulsen, JG Malone, LP Allsopp, M Lohse, ME Kovach, MI Love, MT Rybtke, N Ausmees, O Kirchner, PD Newell, PJ Baynham, PJ Baynham, R Simm, R Tamayo, RH Little, S Anders, S Capdevila, S Pfeilmeier, V Lorenzo de, WK Choy, Y Fouhy, ZT Guvener   +50 more
core   +3 more sources

NMR Solution Structure of the N‐Terminal GSPII Domain from the Thermus Thermophilus Traffic ATPase PilF and Reconstruction of its c‐di‐GMP Binding Capability

ChemBioChem, Volume 26, Issue 7, April 1, 2025.
GSPII‐A is the first of three consecutive GSPII domains of PilF from Thermus thermophilus and the only one that does not bind c‐di‐GMP. In this study we solve the structure of GSPII‐A and show the key factors hindering c‐di‐GMP binding. Through mutagenesis, we elucidate the minimal motif conservation needed for c‐di‐GMP recognition. Abstract The cyclic
Konstantin Neißner, Carolin Frohnapfel, Heiko Keller, Elke Duchardt‐Ferner, Vanessa Schneider, Zeinab Kamjou, Beate Averhoff, Jens Wöhnert   +7 more
wiley   +1 more source

Absence of curli in soil-persistent Escherichia coli is mediated by a C-di-GMP signaling defect and suggests evidence of biofilm-independent niche specialization [PDF]

, 2018
peer-reviewedEscherichia coli is commonly viewed as a gastrointestinal commensal or pathogen although an increasing body of evidence suggests that it can persist in non-host environments as well.
Abram, Florence, Brennan, Fiona, O'Byrne, Conor, Pritchard, Leighton, Somorin, Yinka M., Vollmerhausen, Tara, Waters, Nicholas   +6 more
core   +6 more sources

Co‐Existence Slows Diversification in Experimental Populations of E. coli and P. fluorescens

Environmental Microbiology, Volume 27, Issue 2, February 2025.
Escherichia coli and Pseudomonas fluorescens were cultured in monoculture and co‐culture for 8 weeks. Both species diversified in monoculture, while sequencing revealed mutations in P. fluorescens that were enriched in co‐culture with E. coli. A sequencing‐based invasion assay of 16S amplicons revealed that mutations in the PFLU_1661 gene confer the ...
Gareth Howells, Aysha L. Sezmis, Christopher Blake, Michael J. McDonald   +3 more
wiley   +1 more source