Results 81 to 90 of about 8,797 (254)

Nucleotide sequence and mutational analysis of an immunity repressor gene from Bacillus subtilis temperate phage ϕ105 [PDF]

open access: yes, 1985
We have identified and sequenced a bacteriophage phi 105 gene encoding an immunity repressor, the first to be characterized from a temperate phage infecting a Gram-positive host.
De Smet, Bea   +3 more
core   +2 more sources

Boosting Dibenzothiophene Biodesulfurization Through Implantation of a Refactored DBT Pathway in a Tailored Pseudomonas putida Chassis

open access: yesMicrobial Biotechnology, Volume 18, Issue 9, September 2025.
This study engineered a Pseudomonas putida strain to efficiently remove sulfur from dibenzothiophene (DBT) by reordering and optimising the dsz operon from Rhodococcus qingshengii IGTS8, enhancing catalytic activity and stability. The modified strain, P. putida DS006, showed high desulfurization efficiency in model biodesulfurization systems.
Panayiotis D. Glekas   +6 more
wiley   +1 more source

Engineering Gram-Negative Microbial Cell Factories Using Transposon Vectors [PDF]

open access: yes, 2016
The construction of microbial cell factories à la carte largely depends on specialized molecular biology and synthetic biology tools needed to reprogram bacteria for modifying their existing functions or for bestowing them with new-to-Nature tasks.
Aparicio, Tomás   +3 more
core   +1 more source

Expanding the diversity of mycobacteriophages: Insights into genome architecture and evolution [PDF]

open access: yes, 2011
Mycobacteriophages are viruses that infect mycobacterial hosts such as Mycobacterium smegmatis and Mycobacterium tuberculosis. All mycobacteriophages characterized to date are dsDNA tailed phages, and have either siphoviral or myoviral morphotypes ...
Agustin, B   +99 more
core   +1 more source

The TonB‐Dependent Transport System Facilitates the Uptake of Inorganic Metal Mediators in Pseudomonas putida KT2440 in a Bioelectrochemical System

open access: yesMicrobial Biotechnology, Volume 18, Issue 8, August 2025.
Mediator‐based extracellular electron transfer in Pseudomonas putida KT2440 relies on the TonB‐dependent system for effective mediator (ferricyanide) transport. Transcriptomic and functional analyses confirmed its key role, while OprF overexpression enhanced membrane permeability and current output. These findings clarify mediator uptake mechanisms and
Anna Weimer   +3 more
wiley   +1 more source

Mathematical modelling of CRISPR-Cas system effects on biofilm formation

open access: yesJournal of Biological Dynamics, 2017
Clustered regularly interspaced short palindromic repeats (CRISPR), linked with CRISPR associated (Cas) genes, can confer adaptive immunity to bacteria, against bacteriophage infections.
Qasim Ali, Lindi M. Wahl
doaj   +1 more source

What makes the lac-pathway switch: identifying the fluctuations that trigger phenotype switching in gene regulatory systems [PDF]

open access: yes, 2014
Multistable gene regulatory systems sustain different levels of gene expression under identical external conditions. Such multistability is used to encode phenotypic states in processes including nutrient uptake and persistence in bacteria, fate ...
Berg, Johannes   +3 more
core   +2 more sources

THE ESTABLISHMENT OF LYSOGENICITY IN ESCHERICHIA COLI [PDF]

open access: yesJournal of Bacteriology, 1953
When a population of sensitive bacteria is exposed to infection by a temperate phage, a large number of cells are not lysed and give rise to colonies containing lysogenic cells. Some of the factors influencing the probability that an infected cell of Escherichia coli, strain K12S, will give a lysogenic response are reported here.
openaire   +2 more sources

Within‐Host Mathematical Modeling of Antibiotic‐phage Treatments on Lysogenic and Nonlysogenic Bacteria Dynamics

open access: yesMathematical Methods in the Applied Sciences, Volume 48, Issue 10, Page 10550-10570, 15 July 2025.
ABSTRACT Bacteriophages, or phages (viruses of bacteria), play significant roles in shaping the diversity of bacterial communities within the human gut. A phage‐infected bacterial cell can either immediately undergo lysis (virulent/lytic infection) or enter a stable state within the host as a prophage (lysogeny) until a trigger event, called prophage ...
Hyacinthe M. Ndongmo Teytsa   +3 more
wiley   +1 more source

Opinion of the French Agency for Food, Environmental and Occupational Health & Safety (ANSES) on defining pathogenic strains of Shiga toxin‐producing Escherichia coli

open access: yesFood Risk Assess Europe, Volume 3, Issue 3, July 2025.
ABSTRACT Shiga toxin‐producing Escherichia coli (STEC) are pathogenic E. coli strains that have been associated with a wide range of human clinical illness ranging from mild diarrhoea to bloody diarrhoea (BD) and haemolytic uremic syndrome (HUS). In its opinion of 18 May 2017, the French Agency for Food, Environmental and Occupational Health and Safety
Philippe Fravalo   +33 more
wiley   +1 more source

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