نتایج جستجو برای: enterococcus

تعداد نتایج: 11846  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه الزهراء - دانشکده علوم پایه 1387

در سال 2002 سازمان حفاظت از محیط زیست آمریکا (us.epa) طی تحقیقاتی که انجام داد، enterococcus faecalis را به عنوان شاخص آلودگی آبهای دریایی (شور) معرفی کرد. همچنین enterococcus faecalis و e.coli هر دو به عنوان ارگانیسم های شاخص آلودگی آبهای شیرین معرفی شده اند. enterococcus spp.، باکتری های ذاتی روده حیوانات خونگرم می باشند که نسبت به e.coli ارتباط بیشتری با شیوع گاسترو انتریت دارند. طبق بررسی ه...

Journal: :Foodborne pathogens and disease 2009
Marisa Haenni Estelle Saras Pierre Châtre Danièle Meunier Sylvie Martin Gérard Lepage Marie-Françoise Ménard Patricia Lebreton Thomas Rambaud Jean-Yves Madec

The goal of this study was to assess the presence of enterococci species presenting van-mediated glycopeptide resistance in French cattle. Fecal samples were collected from healthy and sick animals, and enterococci were screened for vancomycin resistance. Vancomycin resistance was principally encountered in Enterococcus gallinarum and Enterococcus casseliflavus strains. However, glycopeptide re...

Journal: :Applied and environmental microbiology 2004
Lynette M Johnston Lee-Ann Jaykus

The purpose of this study was to characterize the antibiotic resistance profiles of Enterococcus species isolated from fresh produce harvested in the southwestern United States. Among the 185 Enterococcus isolates obtained, 97 (52%) were Enterococcus faecium, 38 (21%) were Enterococcus faecalis, and 50 (27%) were other Enterococcus species. Of human clinical importance, E. faecium strains had a...

Journal: :Water research 2009
Reagan R Converse A Denene Blackwood Marek Kirs John F Griffith Rachel T Noble

Concentrations of fecal indicator bacteria (FIB; e.g. Escherichia coli, and Enterococcus sp.) can only be used in limited ways for determining the source of fecal contamination in recreational waters because they cannot distinguish human from non-human fecal contamination. Several Bacteroides spp. have been suggested as potential alternative indicators. We have developed a rapid, culture-indepe...

Journal: :The Journal of general and applied microbiology 2006
Dusan Jurkovic Lívia Krizková Martin Sojka Anna Belicová Roman Dusinský Juraj Krajcovic Cindy Snauwaert Sabri Naser Peter Vandamme Marc Vancanneyt

Three hundred and eight presumed enterococcal isolates were recovered from Bryndza, a soft sheep milk cheese. The cheese samples were obtained from five different commercial distributors in Slovakia and were taken at three different seasonal intervals. All isolates were identified to the species level using genotypic tools. Species-specific PCR using ddl genes highlighted the predominance of En...

Journal: :International journal of systematic and evolutionary microbiology 2004
M Grazia Fortina G Ricci D Mora P L Manachini

The taxonomic positions of seven atypical Enterococcus strains, isolated from artisanal Italian cheeses, were investigated in a polyphasic study. By using 16S rRNA gene sequencing, DNA-DNA hybridization and intergenic transcribed spacer analysis, as well as by examining the phenotypic properties, the novel isolates were shown to constitute a novel enterococcal species. Their closest relatives a...

2016
Ki Yup Nam Hyun Wong Kim Woo Jin Jeung Jung Min Park Jong Moon Park In Young Chung Yong Seop Han Bu Sup Oum Ji Eun Lee Ik Soo Byon Il Han Yun Joo Eun Lee Hee Sung Yoon Dong Park Byeng Chul Yu Sang Joon Lee

BACKGROUND To compare the related factors or manifestations of the two most common isolates of post-operative endophthalmitis, which were Enterococcus spp. and coagulase-negative staphylococci (CNS) in South Korea. METHODS Medical records were reviewed for cases of post-operative endophthalmitis caused by Enterococcus spp. and CNS at eight institutions between January 2004 and July 2010. Vari...

Journal: :journal of dental research, dental clinics, dental prospects 0
esrafil balaei gajan parisa akbarzadeh bahram harasi zohreh moosavi

background and aims. enterococci are among resistant microorganisms to antibiotics and are responsible for some of acute gingival infections. this study aimed at molecular evaluation of gentamicin-resistant enterococcus species and determining the resistance genes. materials and methods. clinical samples were cultured on bhi medium and enterococci were isolated by specific methods and antibiogr...

Journal: :avicenna journal of clinical microbiology and infection 0
ramin mazaheri nezhad fard school of pharmacy and medical sciences, sansom institute, university of south australia, adelaide, australia; school of pharmacy and medical sciences, sansom institute, university of south australia, adelaide, australia. tel: +98-2161117055 mary d. barton school of pharmacy and medical sciences, sansom institute, university of south australia, adelaide, australia michael w. heuzenroeder microbiology and infectious diseases, women’s and children’s hospital, university of adelaide, adelaide, australia

background in recent decades, bacterial antibiotic resistance (especially in enterococci) has become a significant problem for human and veterinary medicine. one of the most important antibiotic resistances in enterococci, vancomycin resistance, is encoded by van gene family. objectives the aim of this study was to investigate antibiotic resistance to vancomycin in enterococci and the genes res...

Journal: :Journal of bacteriology 1990
M Martínez-Bueno A Gálvez E Valdivia M Maqueda

Enterococcus faecalis S-48 produces a peptide antibiotic, AS-48, and a bacteriocin, Bc-48. We have isolated mutants that lack these inhibitory characteristics. Further analysis of the mutants indicates that a plasmid of 56 kilobases (pMB2) may harbor the genes for AS-48. In conjugation experiments, pMB2 has been transferred into a plasmid-free OG1X strain of E. faecalis. The OG1X(pMB2) transcon...

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