Results 71 to 80 of about 8,797 (254)
Overproduction and purification of protein p6 of Bacillus subtilis phage ø29 [PDF]
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.
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]
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
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
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
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]
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
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
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
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

