Results 71 to 80 of about 8,797 (254)

Overproduction and purification of protein p6 of Bacillus subtilis phage ø29 [PDF]

open access: yes, 1985
A ø29 DNA fragment containing gene 6, required for DNA replication, has been cloned in plasmid pPLc28 under the control of the PL promoter of phage lambda.
Blanco, Luis   +5 more
core   +2 more sources

Spontaneous Lysis in Lysogenic Staphylococci.

open access: yesExperimental Biology and Medicine, 1963
SummaryCultures of lysogenic staphylococci yielded significantly higher plaque counts when plated directly on streptomycin or penicillin with antibiotic resistant indicator strains than when supernatants of centrifuged cultures were assayed. This occurs at cell concentrations that permit significant read-sorption of free phage, which are inactivated ...
E D, ROSENBLUM, M B, LAUGHLIN
openaire   +2 more sources

Superinfection of Lysogenic Strains of Salmonella typhimurium Q1: Prophage Substitution and Double Lysogenization [PDF]

open access: yesJournal of General Microbiology, 1962
SUMMARY: Strains of Salmonella typhimurium Q1, lysogenized with type A phages, were superinfected with the heterologous free phages of the same group. This produced lysis (productive or vegetative development) and prophage change (either prophage substitution or double lysogenization) in a constant pattern.
J S, BOYD, D E, BIRDWELL
openaire   +2 more sources

Update of the list of QPS‐recommended biological agents intentionally added to food or feeds as notified to EFSA

open access: yesEFSA Journal, Volume 24, Issue 1, January 2026.
Abstract The qualified presumption of safety (QPS) process was developed to provide a harmonised safety assessment approach to support EFSA Scientific Panels and Units. The QPS approach assesses the taxonomic identity, body of relevant knowledge and safety concerns of microorganisms intentionally added to the food and feed chain.
EFSA Panel on Biological Hazards (BIOHAZ)   +28 more
wiley   +1 more source

Lysogen stability is determined by the frequency of activity bursts from the fate‐determining gene

open access: yesMolecular Systems Biology, 2010
The ability of living cells to maintain an inheritable memory of their gene‐expression state is key to cellular differentiation. Bacterial lysogeny serves as a simple paradigm for long‐term cellular memory.
Chenghang Zong   +4 more
doaj   +1 more source

Interactions between mobile genetic elements: An anti-phage gene in an integrative and conjugative element protects host cells from predation by a temperate bacteriophage.

open access: yesPLoS Genetics, 2022
Most bacterial genomes contain horizontally acquired and transmissible mobile genetic elements, including temperate bacteriophages and integrative and conjugative elements.
Christopher M Johnson   +2 more
doaj   +1 more source

Salmonella Phage ST64B Encodes a Member of the SseK/ NleB Effector Family [PDF]

open access: yes, 2011
Salmonella enterica is a species of bacteria that is a major cause of enteritis across the globe, while certain serovars cause typhoid, a more serious disease associated with a significant mortality rate.
Brett Finlay, B.   +9 more
core   +4 more sources

Drug Discovery Applications of Nitroso (Hetero)Arene Derivatives

open access: yesChemPlusChem, Volume 90, Issue 12, December 10, 2025.
Nitroso (hetero)aromatic compounds are bioactive molecules with antiviral, anticancer, neuroprotective, and antimicrobial properties. This review highlights their mechanisms of action—oxidative stress, DNA damage, and enzyme inhibition—alongside synthesis, structure–activity relationships, and toxicity challenges, offering insight into their ...
Silvia Roscales, Aurelio G. Csáky
wiley   +1 more source

Lysis to Kill: Evaluation of the Lytic Abilities, and Genomics of Nine Bacteriophages Infective for Gordonia spp. and Their Potential Use in Activated Sludge Foam Biocontrol.

open access: yesPLoS ONE, 2015
Nine bacteriophages (phages) infective for members of the genus Gordonia were isolated from wastewater and other natural water environments using standard enrichment techniques.
Zoe A Dyson   +3 more
doaj   +1 more source

Refining Viral Production Estimation

open access: yesEnvironmental Microbiology Reports, Volume 17, Issue 6, December 2025.
Viral production assays are generally employed to decipher viral‐mediated bacterial mortality rates and prevalence of lysogeny in aquatic ecosystems. Commonly used analytical approaches—linear regression and VIPCAL—often provide significantly different estimates.
Hisham M. Shaikh   +5 more
wiley   +1 more source

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