Search results for "bacteri"

Evolutionary Dynamics of Pathoadaptation Revealed by Three Independent Acquisitions of the VirB/D4 Type IV Secretion System in Bartonella

2017

The α-proteobacterial genus Bartonella comprises a group of ubiquitous mammalian pathogens that are studied as a model for the evolution of bacterial pathogenesis. Vast abundance of two particular phylogenetic lineages of Bartonella had been linked to enhanced host adaptability enabled by lineage-specific acquisition of a VirB/D4 type IV secretion system (T4SS) and parallel evolution of complex effector repertoires. However, the limited availability of genome sequences from one of those lineages as well as other, remote branches of Bartonella has so far hampered comprehensive understanding of how the VirB/D4 T4SS and its effectors called Beps have shaped Bartonella evolution. Here, we repor…

cayol_texte_tables_figures_ESM from Borrelia afzelii alters reproductive success in a rodent host

2018

Supplementary material from "Borrelia afzelii alters reproductive success in a rodent host". Detailed material and methods, supplementary tables, figures and results.

Research data of article: "Sympatric Ixodes-tick species: pattern of distribution and pathogen transmission within wild rodent populations"

2018

Longitudinal monitoring of bank voles as well as their ticks and tick-borne pathogens in Central Finland, carried out in 2012.

Isolation of Four Lytic Phages Infecting Klebsiella pneumoniae K22 Clinical Isolates from Spain

2020

This article belongs to the Special Issue Bacteriophage—Molecular Studies.

Fight evolution with evolution: plasmid‐dependent phages with a wide host range prevent the spread of antibiotic resistance

2013

The emergence of pathogenic bacteria resistant to multiple antibiotics is a serious worldwide public health concern. Whenever antibiotics are applied, the genes encoding for antibiotic resistance are selected for within bacterial populations. This has led to the prevalence of conjugative plasmids that carry resistance genes and can transfer themselves between diverse bacterial groups. In this study, we investigated whether it is feasible to attempt to prevent the spread of antibiotic resistances with a lytic bacteriophage, which can replicate in a wide range of gram‐negative bacteria harbouring conjugative drug resistance–conferring plasmids. The counter‐selection against the plasmid was sh…

Antibacterial Efficiency of Surface-Immobilized Flavobacterium-Infecting Bacteriophage

2019

Control of bacterial diseases by bacteriophages (phages) is gaining more interest due to increasing antibiotic resistance. This has led to technologies to attach phages on surfaces to form a biomaterial that can functionally display phages that interact with bacteria, to carry out successful infection cycles. Such a material could be applied in many environments, where the target pathogens are expected. Although this approach has been applied successfully in a few studies already, the basis of the antibacterial effect by the immobilized phages is unclear, and the interpretation of the results depends on the study. Here, we studied the phage attachment density, their detachment rate and infe…

Exploring phage-bacterium interactions : new ways to combat a fish pathogen

2014

Dataset for Mucin induces CRISPR-Cas defense in an opportunistic pathogen

2022

This dataset contains raw data points of (1) phage-bacterium co-evolution experiment (flavobacterium columnare colony counts, phage counts, bacterial growth characteristics and number of CRISPR-Cas spacers) and (2) from competition experiment between Flavobacterium columnare and Aeromonas sp. For detailed method description, see the attached Documentation file.

Degradation of Lincomycin in aqueous medium: coupling of solar photocatalysis and membrane separation

2005

Abstract The photocatalytic oxidation of a common antibiotic, the lincomycin was carried out in aqueous suspensions of polycrystalline TiO 2 Degussa P25 irradiated by sunlight. In order to improve the performance of the lincomycin degradation a hybrid system consisting of a solar photoreactor with the photocatalyst in suspension coupled with a membrane module, used to confine both photocatalyst and pollutants in the reaction environment, was tested. A preliminary study was carried out in order to determine some kinetics parameters of the drug photodegradation. The influence of initial substrate concentration on the lincomycin photooxidation rate was investigated. The photooxidation rate fol…

Community Analysis of Culturable Sapwood Endophytes from Apulian Olive Varieties with Different Susceptibility to Xylella fastidiosa

2021

Endophytes are symptomless fungal and/or bacterial microorganisms found in almost all living plant species. The symbiotic association with their host plants by colonizing the internal tissues has endowed them as a valuable tool to suppress diseases, stimulate growth, and promote stress resistance. In this context, the study of culturable endophytes residing the sapwood of Apulian olives might be a promising control strategy for xylem colonizing pathogens as Xylella fastidiosa. To date, olive sapwood cultivable endophytes are still under exploration; therefore, this work pursues a study of cultivable endophytes occurrence variation in the sapwood of different olive varieties under the effect…