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Original Paper

Safety Evaluation of Enterocin Producer Enterococcus sp. Strains Isolated from Traditional Turkish Cheeses

The purpose of this study was to determine the antimicrobial activity and occurrence of bacteriocin structural genes in Enterococcus spp. isolated from different cheeses and also investigate some of their virulence factors. Enterococcus strains were isolated from 33 different cheeses. Enterococcus faecium (6 strains) and Enterococcus faecalis (5 strains) enterocin-producing strains were identified by 16S rDNA analyses. Structural genes entA, entB, entP and entX were detected in some isolates

Mine Avci, Banu Özden Tuncer

Polish Journal of Microbiology , ISSUE 2, 223–233

Research Article

DRUG RESISTANCE IN THE GENUS ENTEROCOCCUS – CURRENT PROBLEM IN HUMANS AND ANIMALS

Drug-resistant bacteria from the genus Enterococcus are currently among the most important pathogens behind healthcare-associated infections. The drug resistance of these bacteria has been on the increase since the 1980s, leeding to their multi-drug resistance. Selective pressure, present mainly in the hospital environment, contributed to this phenomenon. However, also outside the hospital environment selective pressure comes into play, namely the use of antibiotics as promoters of growth in

Katarzyna Talaga-Ćwiertnia, Małgorzata Bulanda

Postępy Mikrobiologii - Advancements of Microbiology , ISSUE 3, 244–250

Article

ANALYSIS OF SELECTED GENETIC TRAITS, PHENOTYPES, AND THE EPIDEMIOLOGICAL THREAT OF ENTEROCOCCUS BACTERIA RESISTANT TO VANCOMYCIN

1. Introduction Enterococci are Gram-positive bacteria which belong to facultatively anaerobic cocci. They occur mainly in the intestines, where they constitute natural microflora, protecting against pathogens. They generally have the form of diplococci or short chains. The genus Enterococcus is comprised of 38 species, but only some of them are clinically relevant – these include Enterococcus faecalis, E. faecium, E. gallinarum and E. casseliflavus [1, 2]. The first species is very often

Wojciech Rogóż, Daniel Sypniewski, Ilona Bednarek

Postępy Mikrobiologii - Advancements of Microbiology , ISSUE 1, 35–48

Short Communication

The Usefulness of Biosynthetic Vascular Graft Omniflow II and Autologous Veins for the Treatment of Massive Infection of Dacron Vascular Graft with Enterococcus faecalis HLAR

Infections of vascular grafts are the most severe complications in vascular surgery. We present the case of a 73-year-old male with infection of a dacron prosthesis with a strain of Enterococcus faecalis. The patient was treated with replacement of a full prosthesis with a combined graft constructed from Biosynthetic Vascular graft Omniflow and autologous veins. This graft is recommended for implantation in patients with a higher risk of infection. Our case is one of the first reported usage of

Witold Woźniak, Robert Bajno, Michał Świder, Piotr Ciostek

Polish Journal of Microbiology , ISSUE 4, 471–474

Original Paper

Transferrin and Lactoferrin – Human Iron Sources for Enterococci

To overcome limitations in iron acquisition, enterococci have evolved a number of mechanisms to scavenge iron from the host iron-binding proteins – transferrin (TR) and lactoferrin (LF). The aim of this study was to demonstrate the mechanisms by which enterococci utilize human TR and LF bound iron. The study included two strains of Enterococcus faecalis grown in iron-deficient and iron-excess media respectively. The binding activity of both proteins was monitored using proteins labelled

Paweł Lisiecki

Polish Journal of Microbiology , ISSUE 4, 419–425

Short Communication

Susceptibility of Vascular Implants to Colonization in vitro by Staphylococcus aureus, Staphylococcus epidermidis, Enterococcus faecalis and Pseudomonas aeruginosa

We compared association of Staphylococcus aureus, Staphylococcus epidermidis, Pseudomonas aeruginosa and Enterococcus faecalis with nine vascular implants after co-culture. Vascular implants were composed of various materials such as warp knitted polyester (with or without gelatin and silver ions), expanded polytetrafluoroethylene and biological materials – surface treated porcine pericardial patch and Omniflow II. The lowest overall number of associated bacteria was detected for

Witold Woźniak, Aleksandra Kozińska, Piotr Ciostek, Izabela Sitkiewicz

Polish Journal of Microbiology , ISSUE 1, 125–129

Original Paper

Emergence of High-level Gentamicin Resistance among Enterococci Clinical Isolates from Burn Patients in South-west of Iran: Vancomycin Still Working

Enterococcus faecalis and Enterococcus faecium are among the main agents associated with nosocomial infections with high mortality in immunocompromised patients. Antibiotic resistance, especially against gentamicin and vancomycin among Enterococci, is a risk factor that could increase the morbidity and mortality rate. 179 Enterococci isolates from burn patients were included in this study. Antibiotic susceptibility testing was done using the disk diffusion test and minimum inhibitory

MARYAM LABIBZADEH, GHOLAM ABBAS KAYDANI, MOHAMMAD SAVARI, ALIREZA EKRAMI

Polish Journal of Microbiology , ISSUE 4, 401–406

Short Communication

Metagenomic Profiling of the Bacterial Community Changes from Koji to Mash Stage in the Brewing of Soy Sauce

Staphylococcus, Kurthia, Enterococcus and Leuconostoc in the mash stage. The results provided insights into the microbial communities involved in soy sauce fermentation.

Hongbin Wang, Quanzeng Wei, Shuqi Gui, Yongrui Feng, Yong Zhang, Yihan Liu, Fuping Lu

Polish Journal of Microbiology , ISSUE 4, 537–541

Short Communication

Search of the Antimicrobial Potential of Benzimidazole Derivatives

A broad series of 4,5,6,7-tetrahalogenated benzimidazoles and 4-(1H-benzimidazol-2-yl)-benzene-1,3-diol derivatives was tested against selected bacteria and fungi. For this study three plant pathogens Colletotrichum sp., Fusarium sp., and Sclerotinia sp., as well as Staphylo­coccus sp., Enterococcus sp., Escherichia sp., Enterobacter sp., Klebsiella spp. , and Candida spp. as human pathogens were used. MIC values and/or area of growth reduction method were applied in order to compare the

Monika Janeczko, Zygmunt Kazimierczuk, Andrzej Orzeszko, Andrzej Niewiadomy, Ewa Król, Ryszard Szyszka, Maciej Masłyk

Polish Journal of Microbiology , ISSUE 3, 359–364

Short Communication

Inhibition of Multidrug-Resistant Gram-Positive and Gram-Negative Bacteria by a Photoactivated Porphyrin

The authors studied the in vitro antibacterial activity of the photo-activated porphyrin meso-tri(N-methyl-pyridyl), mono(N-tetradecyl-pyridyl)porphine (C14) against four multidrug-resistant bacteria: Staphylococcus aureus, Enterococcus faecalis (Gram-positive), Escherichia coli, Pseudomonas aeruginosa (Gram-negative). Using 10 μg/ml of porphyrin and 60 sec irradiation we observed the remarkable suscep­tibility of S. aureus and E. faecalis to treatment while, under the same conditions, E

Moreno Bondi, Anna Mazzini, Simona De Niederhäusern, Ramona Iseppi, Patrizia Messi

Polish Journal of Microbiology , ISSUE 4, 533–536

original-paper

Marine Sediment Recovered Salinispora sp. Inhibits the Growth of Emerging Bacterial Pathogens and other Multi-Drug-Resistant Bacteria

Introduction The ESKAPE pathogens (Boucher et al. 2009; Pendleton et al. 2013) is an acronym used to designate a group of organisms formed by Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacer baumannii, Pseudomonas aeruginosa, and species of Enterobacter. These bacteria usually cause infections in patients with immunosuppressed conditions and critical illnesses and are characterized by multiple antimicrobial resistance mechanisms (Pendleton et al. 2013; Partridge

LUIS CONTRERAS-CASTRO, SERGIO MARTÍNEZ-GARCÍA, JUAN C. CANCINO-DIAZ, LUIS A. MALDONADO, CLAUDIA J. HERNÁNDEZ-GUERRERO, SERGIO F. MARTÍNEZ-DÍAZ, BÁRBARA GONZÁLEZ-ACOSTA, ERIKA T. QUINTANA

Polish Journal of Microbiology , ISSUE 3, 321–330

Original Paper

MALDI-TOF MS Detection of Endophytic Bacteria Associated with Great Nettle (Urtica dioica L.), Grown in Algeria

). The identification of bacteria is done by biochemical tests and confirmed by MALDI-TOF MS. Seven genus and eleven species were isolated from the Great Nettle. They belong to the genera Bacillus, Escherichia, Pantoea, Enterobacter, Staphylococcus, Enterococcus and Paenibacillus. The majority of these bacteria were isolated from Tlemcen which makes this region the richest in endophytic bacteria compared to that harvested from Dellys. The results show also that the leaves are the most diversified in

Souheyla Toubal, Ouahiba Bouchenak, Djillali Elhaddad, Karima Yahiaoui, Sarah Boumaza, Karim Arab

Polish Journal of Microbiology , ISSUE 1, 67–72

Article

THE ROLE OF THE STRINGENT COMPONENTS IN THE REGULATION OF VIRULENCE

enterica, Pseudomonas aeruginosa posiadają enzymy RelA i SpoT. Bakterie Gram-dodatnie (Bacillus anthracis, B. subtilis, Listeria monocytogenes, Streptococcus coelicolor, Enterococcus faecalis) posiadają zarówno dwufunkcyjne białka RSH (RelA/SpoT homologue), jak i małe syntetazy RelP i RelQ. Obecność małych syntetaz stwierdzono także u niektórych bakterii posiadających enzymy Rel i SpoT jak np. syntetaza RelV u Gram-ujemnej Vibrio cholerae [19]. Istnienie wielu enzymów związanych z syntezą i hydrolizą

Klaudyna Krause, Klaudia Milewska, Agnieszka Szalewska-Pałasz

Postępy Mikrobiologii - Advancements of Microbiology , ISSUE 3, 247–258

original-paper

Significance of Infections in Implant Loss After Breast Reconstruction in the Course of Breast Cancer Treatment

only based on clinical symptoms without microbiological diagnosis and no microorganisms were grown in six out of 39 cases of infections (15.4%). In 24 out of 28 (85.7%) microbiologically confirmed cases of infection, bacteria were present in monoculture, in four cases (14.3%) polybacterial infections were found. Among the etiological agents were: coagulase-negative staphylococci (31.3%), Staphylococcus aureus (18.7%), Enterococcus faecalis (9.4%), Enterobacter cloacae (18.8%), Pseudomonas

MARIA SZYMANKIEWICZ, TOMASZ NOWIKIEWICZ, MARTA BIEDKA

Polish Journal of Microbiology , ISSUE 3, 343–351

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