Publications
Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
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reconstruction of the phenotypes of methicillin-resistant staphylococcus aureus by replacement of the staphylococcal cassette chromosome mec with a plasmid-borne copy of staphylococcus sciuri pbpd gene. | the meca gene, the central determinant of methicillin (meticillin)-resistant staphylococcus aureus (mrsa), is not native to this bacterial species but may have originated in the animal commensal species staphylococcus sciuri. all s. sciuri strains carry a close homologue of meca in the form of pbpd, the genetic determinant of penicillin binding protein 4 (pbp 4) of s. sciuri. here we describe an experimental system that could be used for additional tests for this proposition. the s. sciuri pbpd ... | 2009 | 19015345 |
occurrence of chloramphenicol resistance and corresponding resistance genes in members of the staphylococcus sciuri group. | 2009 | 19091524 | |
kinetics of growth and 3-methyl-1-butanol production by meat-borne, coagulase-negative staphylococci in view of sausage fermentation. | five species of meat-borne, coagulase-negative staphylococci were screened for their in vitro production of 3-methyl-1-butanol. the highest production level was encountered for staphylococcus sciuri alphasg2, despite its poor growth. with respect to staphylococcus species that are generally applied in sausage starter cultures, production of 3-methyl-1-butanol was higher with staphylococcus xylosus 3pa6 than with staphylococcus carnosus 833. mathematical modelling was used to link the kinetics of ... | 2009 | 19251335 |
bacterial diversity in the rumen of gayals (bos frontalis), swamp buffaloes (bubalus bubalis) and holstein cow as revealed by cloned 16s rrna gene sequences. | libraries of rumen bacterial 16s rrna gene sequences of gayals (bos frontalis) and swamp buffaloes (bubalus bubalis) were cloned and sequenced in the present work to compare the bacterial diversity with the third published library of holstein cow. sequence similarity of 97% was used as the definition of operational taxonomic unit (otu). the majority of the 470 sequences retrieved fell into the phyla of low g + c subdivision (329 sequences) and cytophaga-flexibacter-bacteroides (cfb, 123 sequence ... | 2010 | 19662514 |
metabolism of azo dyes by human skin microbiota. | reduction of methyl red (mr) and orange ii (or ii) by 26 human skin bacterial species was monitored by a rapid spectrophotometric assay. the analysis indicated that skin bacteria, representing the genera staphylococcus, corynebacterium, micrococcus, dermacoccus and kocuria, were able to reduce mr by 74-100 % in 24 h, with only three species unable to reduce completely the dye in that time. among the species tested, only corynebacterium xerosis was unable to reduce or ii to any degree by 24 h, an ... | 2010 | 19729456 |
diversity of staphylococcal cassette chromosome mec structures in coagulase-negative staphylococci and relationship to drug resistance. | the objective of this study was to determine the distribution of staphylococcal cassette chromosome mec (sccmec) elements in meticillin-resistant coagulase-negative staphylococci (mr-cons) isolated from a tertiary-care hospital in mexico and to examine the relationship to drug resistance. fifty selected mr-cons isolates collected from catheters (n=15), blood (n=15), bone (n=9), bronchial lavage (n=2) and urine (n=2) and one isolate each from an abscess, cerebrospinal fluid, eye, pleural effusion ... | 2010 | 20007762 |
the retention of bacteria on hygienic surfaces presenting scratches of microbial dimensions. | to produce surfaces of defined linear topographical features which reflect those found on worn and new stainless steel, to monitor the effect of feature dimensions on the retention of listeria monocytogenes and staphylococcus sciuri. | 2010 | 20070506 |
evaluation of matrix-assisted laser desorption ionization-time-of-flight mass spectrometry in comparison to rpob gene sequencing for species identification of bloodstream infection staphylococcal isolates. | as a result of variable expression of biochemical characters, misidentification by conventional phenotypic means often occurs with clinical isolates belonging to staphylococcus species. therefore, we evaluated the use of matrix-assisted laser desorption ionization-time-of-flight mass spectrometry (maldi-tof ms) for the identification of 450 blood isolates of the most relevant staphylococcal species, using sequence analysis of the rpob gene as the reference method. a correct species identificatio ... | 2011 | 20132252 |
staphylococcus stepanovicii sp. nov., a novel novobiocin-resistant oxidase-positive staphylococcal species isolated from wild small mammals. | five novobiocin-resistant and oxidase-positive staphylococcal strains were isolated from wild small mammals. phenotypic studies and phylogenetic analysis based on 16s rrna, rpob and dnaj gene sequences revealed that these strains were members of the staphylococcus sciuri cluster group and were similar to staphylococcus fleurettii. dna-dna hybridisation with closely related staphylococcal species suggested that the strains represented a novel species. the name staphylococcus stepanovicii is propo ... | 2010 | 20418037 |
comparison of phenotypic methods in predicting methicillin resistance in coagulase-negative staphylococcus (cons) from animals. | phenotypic detection of methicillin resistance in coagulase-negative staphylococcus (cons) of animal origin has been challenging due to the heterogeneous expression of meca. to compare different phenotypic methods in predicting the meca presence in cons, a total of 87 cons isolates from agricultural animals were analyzed in this study by agar dilution, disk diffusion, and broth microdilution. meca was present in 81 cons isolates. broth microdilution demonstrated the highest sensitivity of 100% i ... | 2011 | 20538309 |
the application of staphylococci with flavour-generating potential is affected by acidification in fermented dry sausages. | differences in the production of bacterial metabolites with potential impact on fermented sausage flavour were found in meat simulation medium when comparing different strains of staphylococcus xylosus and staphylococcus carnosus as starter cultures. overall, higher levels of 3-methyl-1-butanol and acetoin were found for s. xylosus, with some intraspecies variability. in addition, sausage fermentation parameters affected staphylococcal growth and metabolism. strong acidification, as in northern- ... | 2010 | 20688237 |
microorganisms associated with maari, a baobab seed fermented product. | a microbiological study was carried out on baobab fermented seeds (maari) obtained from 4 different production sites in burkina faso (mansila, toulfé, ouagadougou and gorgadji). a total of 390 representative isolates comprising 251 aerobic mesophilic bacteria (amb) and 139 lactic acid bacteria (lab) were isolated and identified to species level using a combination of pheno- and genotypic methods including conventional morphological analysis, carbohydrate fermentation profiling, rep-pcr ((gtg)(5) ... | 2010 | 20688411 |
nasal carriage of methicillin-resistant and methicillin-sensitive strains of staphylococcus sciuri in the indonesian population. | staphylococcus sciuri strains were unexpectedly cultured from healthy persons and patients from indonesia during a population-based survey on nasal staphylococcus aureus carriage. fifty-one s. sciuri isolates were further characterized. the s. aureus meca gene was detected by pcr in 22 isolates (43.1%), whereas s. sciuri meca was found in 33 isolates (64.7%). the staphylococcal cassette chromosome mec (sccmec) regions of s. aureus meca-positive isolates contained elements of classical s. aureus ... | 2010 | 20837756 |
identification of staphylococcus spp. using (gtg)₅-pcr fingerprinting. | a group of 212 type and reference strains deposited in the czech collection of microorganisms (brno, czech republic) and covering 41 staphylococcus species comprising 21 subspecies was characterised using rep-pcr fingerprinting with the (gtg)₅ primer in order to evaluate this method for identification of staphylococci. all strains were typeable using the (gtg)₅ primer and generated pcr products ranging from 200 to 4500 bp. numerical analysis of the obtained fingerprints revealed (sub)species-spe ... | 2010 | 21095086 |
safety-related properties of staphylococci isolated from food and food environments. | to test some safety-related properties within 321 staphylococci strains isolated from food and food environments. | 2010 | 21143714 |
differentiation of staphylococcus spp. by high-resolution melting analysis. | high-resolution melting analysis (hrma) is a fast (post-pcr) high-throughput method to scan for sequence variations in a target gene. the aim of this study was to test the potential of hrma to distinguish particular bacterial species of the staphylococcus genus even when using a broad-range pcr within the 16s rrna gene where sequence differences are minimal. genomic dna samples isolated from 12 reference staphylococcal strains (staphylococcus aureus, staphylococcus capitis, staphylococcus caprae ... | 2010 | 21164574 |
assessment of bacterial diversity in the cattle tick rhipicephalus (boophilus) microplus through tag-encoded pyrosequencing. | ticks are regarded as the most relevant vectors of disease-causing pathogens in domestic and wild animals. the cattle tick, rhipicephalus (boophilus) microplus, hinders livestock production in tropical and subtropical parts of the world where it is endemic. tick microbiomes remain largely unexplored. the objective of this study was to explore the r. microplus microbiome by applying the bacterial 16s tag-encoded flx-titanium amplicon pyrosequencing (btefap) technique to characterize its bacterial ... | 2011 | 21211038 |
analysis of staphylococcal cassette chromosome mec in staphylococcus haemolyticus and staphylococcus sciuri: identification of a novel ccr gene complex with a newly identified ccra allotype (ccra7). | methicillin resistance in staphylococci is conferred by the acquisition in its chromosome of the meca gene, which is located on a mobile genetic element called staphylococcal cassette chromosome mec (sccmec). genetic type of sccmec is defined by combination of mec gene complex class and cassette chromosome recombinase gene (ccr) allotype. in this study, we analyzed genetic diversity of the sccmec in 11 staphylococcus haemolyticus strains and a staphylococcus sciuri strain, which were recently is ... | 2011 | 21388304 |
efficacy of bacteriocin-containing cell-free culture supernatants from lactic acid bacteria to control listeria monocytogenes in food. | consumer demands have led to an increased interest in the use of natural antimicrobials for food protection. with the objective of developing novel products for enhancing the microbial safety of food, we have tested cell-free culture supernatants (cfs's) of eight antagonistic bacterial strains for their efficacy to inhibit listeria monocytogenes in different food matrices. the antagonistic strains represented different members of the order lactobacillales as well as one isolate of staphylococcus ... | 2011 | 21411169 |
size control and catalytic activity of bio-supported palladium nanoparticles. | the development of nanoparticles has greatly improved the catalytic properties of metals due to the higher surface to volume ratio of smaller particles. the production of nanoparticles is most commonly based on abiotic processes, but in the search for alternative protocols, bacterial cells have been identified as excellent scaffolds of nanoparticle nucleation, and bacteria have been successfully employed to recover and regenerate platinum group metals from industrial waste. we report on the form ... | 2011 | 21481574 |
staphylococcal nasal carriage in calves: multiresistant staphylococcus sciuri and immune evasion cluster (iec) genes in methicillin-resistant staphylococcus aureus st398. | 2011 | 21609981 | |
physiological traits of the symbiotic bacterium teredinibacter turnerae isolated from the mangrove shipworm neoteredo reynei. | nutrition in the teredinidae family of wood-boring mollusks is sustained by cellulolytic/nitrogen fixing symbiotic bacteria of the teredinibacter clade. the mangrove teredinidae neoteredo reynei is popularly used in the treatment of infectious diseases in the north of brazil. in the present work, the symbionts of n. reynei, which are strictly confined to the host's gills, were conclusively identified as teredinibacter turnerae. symbiont variants obtained in vitro were able to grow using casein a ... | 2009 | 21637522 |
microorganisms from aphid honeydew attract and enhance the efficacy of natural enemies. | aphids are one of the most serious pests of crops worldwide, causing major yield and economic losses. to control aphids, natural enemies could be an option but their efficacy is sometimes limited by their dispersal in natural environment. here we report the first isolation of a bacterium from the pea aphid acyrthosiphon pisum honeydew, staphylococcus sciuri, which acts as a kairomone enhancing the efficiency of aphid natural enemies. our findings represent the first case of a host-associated bac ... | 2011 | 21673669 |
staphylococcus sciuri exfoliative toxin c (exhc) is a necrosis-inducer for mammalian cells. | staphylococcus sciuri (s. sciuri) is a rare pathogen in humans, but it can cause a wide array of human infections. recently a s. sciuri isolate (hbxx06) was reported to cause fatal exudative epidermitis (ee) in piglets and thus considered as a potential zoonotic agent. to investigate the pathogenicity of this bacterium, we cloned exfoliative toxin c (exhc), a major toxin of the s. sciuri isolate and performed functional analysis of the recombinant exhc-his (rexhc) protein using in vitro cell cul ... | 2011 | 21829591 |
microbiological and molecular characterization of human clinical isolates of staphylococcus cohnii, staphylococcus hominis, and staphylococcus sciuri. | the incidence of coagulase-negative staphylococci reported as causative agents of nosocomial infections has risen in the last decade. the aim of this study was to characterize biofilm formation, antibiotic resistance, sccmec type, and genetic relatedness in clinical isolates of staphylococcus cohnii, staphylococcus hominis, and staphylococcus sciuri recovered from humans. | 2011 | 21851333 |
Staphylococcus sciuri exfoliative toxin C is a dimer that modulates macrophage functions. | Staphylococcus sciuri causes multiple infections in humans. Recently, a strain of S. sciuri (HBXX06) carrying exfoliative toxin C (ExhC) was reported to cause fatal exudative epidermal skin pathology in piglets and might be considered as a potential zoonotic agent. However, little is known about the pathogenicity of this bacterium. In this study, we examined the activity of recombinant ExhC-his (rExhC) protein using newborn mice as the model and investigated the effect of rExhC on macrophage fun ... | 2011 | 21854098 |
emergence and spread of cfr-mediated multiresistance in staphylococci: an interdisciplinary challenge. | in staphylococci, methylation of a2503 of 23s rrna leads to resistance against several classes of antibiotics (oxazolidinones, phenicols, streptogramin compounds, lincosamidins and pleuromutilins). the corresponding resistance gene cfr is located on plasmid(s) and is transferable within and between staphylococcal species including staphylococcus aureus. it first emerged in coagulase-negative staphylococci, later in central europe also in s. aureus st9 and in methicillin-resistant s. aureus st398 ... | 2011 | 21861622 |
Multiplex PCR assay for species identification of bovine mastitis pathogens. | To develop and evaluate a multiplex PCR (mPCR) assay for simultaneous detection of 10 bacterial species causing bovine mastitis namely, Staphylococcus aureus, Staphylococcus chromogenes, Staphylococcus epidermidis, Staphylococcus sciuri, Staphylococcus haemolyticus, Staphylococcus simulans, Streptococcus agalactiae, Streptococcus dysgalactiae, Streptococcus uberis and Escherichia coli in milk. | 2011 | 21972842 |
the cathelicidin-like peptide derived from panda genome is a potential antimicrobial peptide. | a novel cathelicidin-like antimicrobial peptide was identified by mining genome of panda. this peptide (cathelicidin-am) was synthesized. it showed potential antimicrobial activities against wide spectrum of microorganisms including gram-negative and -positive bacteria, and fungi. it had similar antimicrobial abilities against both standard and clinically isolated drug-resistant strains. cathelicidin-am could rapidly exert its antibacterial activities. it just took less than 1h to kill all staph ... | 2012 | 22101189 |
Wound infection by multiresistant Staphylococcus sciuri identified by molecular methods. | We describe a case of wound infection by multidrug-resistant Staphylococcus sciuri in a patient admitted to hospital for injuries in Agreste Alagoas, Brazil, identified through broad-spectrum PCR and sequencing of 16S rDNA gene. Due to its high resistance profile, the infection was characterized as methicillin-resistant Staphylococcus presenting sensitive only to vancomycin and chloramphenicol. The injury resulting from trauma associated with infection resulted in amputation of the infected limb ... | 2011 | 22143819 |
application of denaturing gradient gel electrophoresis to microbial diversity analysis in chinese douchi. | douchi is a traditional chinese soybean food which has been consumed for thousands years as an important protein source and flavouring ingredient. studies have rarely been carried out to investigate its microbial composition and these are urgently required for the commercial labels and safety considerations. | 2012 | 22318896 |
species and staphylococcal cassette chromosome mec (sccmec) diversity among methicillin-resistant non-staphylococcus aureus staphylococci isolated from pigs. | while methicillin-resistant staphylococcus aureus (mrsa) st398 is known to be widespread in pig farms, few studies have investigated the species diversity and sccmec types of methicillin-resistant non-s. aureus staphylococci (mrnas) residing in the nose of pigs. we examined nasal swab samples of 200 pigs originating from 10 belgian pig farms previously found positive for mrsa st398. suspected staphylococcal isolates were subjected to a 16s rrna-meca-nuc pcr. confirmed mrnas were genotypically id ... | 2012 | 22333287 |
a loop-mediated isothermal amplification method for rapid detection of the multidrug-resistance gene cfr. | we developed and evaluated the specificity and sensitivity of a loop-mediated isothermal amplification (lamp) method for rapid detection of the multidrug-resistance gene cfr. a pair of outer primers and a pair of inner primers and one loop primer were specially designed for recognizing seven distinct sequences on the target cfr gene. the amplification reaction was performed within only 35 min under isothermal conditions at 63 °c in a regular water bath with visual measurement. the lamp assay sho ... | 2012 | 22579470 |
characterization of contaminants from a sanitized milk processing plant. | milk processing lines offer a wide variety of microenvironments where a diversity of microorganisms can proliferate. we sampled crevices and junctions where, due to deficient reach by typical sanitizing procedures, bacteria can survive and establish biofilms. the sampling sites were the holding cell, cold storage tank, pasteurizer and storage tank--transfer pump junction. the culturable bacteria that were isolated after the sanitation procedure were predominantly pseudomonas spp., serratia spp, ... | 2012 | 22761957 |
multidrug-resistant coagulase-negative staphylococci in food animals. | to study the antimicrobial resistance of coagulase-negative staphylococci (cons) in animals. | 2012 | 22816491 |
staphylococcal skin disease in livestock. | this review covers cutaneous manifestations of staphylococcal infection in livestock species. cattle: in cattle, staphylococcal infections may present as folliculitis or as impetigo. both may present as mild forms of a group of conditions loosely termed udder dermatitis, which has various clinical presentations and does not always involve staphylococci. goats: in goats, staphylococcal infection may be secondary to chorioptic mange or contagious pustular dermatitis (parapox virus infection). whil ... | 2012 | 22823580 |
linezolid-resistant clinical isolates of meticillin-resistant coagulase-negative staphylococci and enterococcus faecium from china. | seventeen meticillin-resistant coagulase-negative staphylococci (mrcons), including ten staphylococcus capitis, four staphylococcus cohnii, two staphylococcus haemolyticus and one staphylococcus sciuri, and an enterococcus faecium isolate with various levels of linezolid resistance were isolated from intensive care units in a chinese hospital. pfge indicated that the four s. cohnii isolates belonged to a clonal strain, and that nine of the s. capitis isolates were indistinguishable (clone a1) an ... | 2012 | 22899781 |
genetic environment and location of the lnu(a) and lnu(b) genes in methicillin-resistant staphylococcus aureus and other staphylococci of animal and human origin. | to detect the presence of lnu genes in staphylococcal strains with the unusual phenotype lincosamide resistance/macrolide susceptibility (l(r)/m(s)), and to determine their locations and genetic environments. | 2012 | 22899804 |
environmental bacteria and childhood asthma. | we have previously found an inverse association of bacterial diversity with childhood asthma. it remains unclear whether certain bacteria account for the protective effect. | 2012 | 22994424 |
characterization of coagulase-negative staphylococcus species from cows' milk and environment based on bap, icaa, and meca genes and phenotypic susceptibility to antimicrobials and teat dips. | the aim of this study was to investigate whether the main coagulase-negative staphylococci (cns) species involved in bovine intramammary infections (imi) possess specific characteristics that promote colonization of the udder. virulence markers associated with biofilm formation, antimicrobial resistance, and biocide tolerance were compared between typically contagious cns species (staphylococcus chromogenes, staphylococcus epidermidis, staphylococcus haemolyticus, and staphylococcus simulans) an ... | 2012 | 22999285 |
characterization of methicillin-resistant non-staphylococcus aureus staphylococci carriage isolates from different bovine populations. | this study aimed at investigating bovine non-staphylococcus aureus staphylococci for their role as a potential reservoir for methicillin resistance. | 2013 | 23090977 |
elevation of staphylococcus sciuri subsp. lentus (kloos et al.) to species status: staphylococcus lentus (kloos et al.) comb. nov. | deoxyribonucleic acid (dna)-dna hybridization and physiological studies on 15 strains of s. sciuri subsp. lentus and 4 strains of s. sciuri subsp. sciuri demonstrated that species rank should be conferred on these subspecies. strain atcc 29070, the type strain of s. sciuri subsp. lentus, is proposed as type strain of s. lentus. an emended description of this strain is given. | 1983 | 23194736 |
analysis of bacterial diversity during the fermentation of inyu, a high-temperature fermented soy sauce, using nested pcr-denaturing gradient gel electrophoresis and the plate count method. | the diversity of bacteria associated with the fermentation of inyu, also known as black soy sauce, was studied through the nested pcr-denaturing gradient gel electrophoresis (dgge) of samples collected from the fermentation stages of the inyu production process. the dgge profiles targeted the bacterial 16s rdna and revealed the presence of citrobacter farmeri, enterobacter cloacae, enterobacter hormaechei, enterococcus faecium, klebsiella pneumoniae, pantoea agglomerans, salmonella enterica, ser ... | 2013 | 23200659 |
treating animal bites: susceptibility of staphylococci from oral mucosa of cats. | infected wounds determined by cats' bites represent high costs to public health, and their adequate treatment relies on the knowledge of the antimicrobial susceptibility of bacterial agents found in the oral microbiota. members of the genus staphylococcus sp. belong to the microbiota of the oral mucosa of cats and are frequently involved in secondary infections of these wounds. this study aimed to evaluate the antimicrobial susceptibility of staphylococcus species isolated from oral mucosa of ca ... | 2012 | 23280142 |
farm-derived gram-positive bacterium staphylococcus sciuri w620 prevents asthma phenotype in hdm- and ova-exposed mice. | farm-derived dust samples have been screened for bacteria with potential allergo-protective properties. among those was staphylococcus sciuri w620 (s. sciuri w620), which we tested with regard to its protective capacities in murine models of allergic airway inflammation. | 2013 | 23369007 |
genetic characterization of antimicrobial resistance in coagulase-negative staphylococci from bovine mastitis milk. | coagulase-negative staphylococci (cns; n=417) were isolated from bovine milk and identified by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. nineteen different species were identified, and staphylococcus xylosus, staphylococcus chromogenes, staphylococcus haemolyticus, and staphylococcus sciuri were the most prevalent species. resistance to oxacillin (47.0% of the isolates), fusidic acid (33.8%), tiamulin (31.9%), penicillin (23.3%), tetracycline (15.8%), streptom ... | 2013 | 23415536 |
antiradical, antimicrobial and cytotoxic activities of commercial beetroot pomace. | the by-product of food processing is often utilized as feed, and for the preparation of dietary fiber and biofuel. however, these products are also promising sources of bioactive antioxidants and color giving compounds, which could be used as additives in the food, pharmaceutical and cosmetic industry. the aim of this study was to investigate the phytochemical profile, and the antiradical, antimicrobial and cytotoxic activities of industrial beetroot pomace extract (bpe). the content of phenolic ... | 2013 | 23423147 |
biodiversity and characterization of indigenous coagulase-negative staphylococci isolated from raw milk and cheese of north italy. | the aim of the current study was to detect coagulase-negative staphylococci (cns) in raw milk and cheeses produced in north italy, and to analyze isolates for their biodiversity, safety aspects and technological properties. molecular identification methods revealed a high biodiversity among isolates and assigned them to 17 species. the most recovered species were staphylococcus equorum (12%), staphylococcus lentus (12%), staphylococcus simulans (12%), staphylococcus sciuri (10%), and staphylococ ... | 2012 | 23498185 |
anaerobic and aerobic bacteriology of the saliva and gingiva from 16 captive komodo dragons (varanus komodoensis): new implications for the "bacteria as venom" model. | it has been speculated that the oral flora of the komodo dragon (varanus komodoensis) exerts a lethal effect on its prey; yet, scant information about their specific oral flora bacteriology, especially anaerobes, exists. consequently, the aerobic and anaerobic oral bacteriology of 16 captive komodo dragons (10 adults and six neonates), aged 2-17 yr for adults and 7-10 days for neonates, from three u.s. zoos were studied. saliva and gingival samples were collected by zoo personnel, inoculated int ... | 2013 | 23805543 |
a novel hybrid sccmec-mecc region in staphylococcus sciuri. | methicillin resistance in staphylococcus spp. results from the expression of an alternative penicillin-binding protein 2a (encoded by meca) with a low affinity for β-lactam antibiotics. recently, a novel variant of meca known as mecc (formerly mecalga251) was identified in staphylococcus aureus isolates from both humans and animals. in this study, we identified two staphylococcus sciuri subsp. carnaticus isolates from bovine infections that harbour three different meca homologues: meca, meca1 an ... | 2014 | 24302651 |
bacterial ecology of pdo coppa and pancetta piacentina at the end of ripening and after map storage of sliced product. | the objective of this study was to evaluate the microbiota of two typical italian pdo delicatessens coppa and pancetta piacentina, produced in piacenza area (italy). classical and molecular approaches were employed, in order to acquire knowledge on their bacterial ecology and its evolution after slicing and map storing; thus, the biodiversity of characteristic bacterial community, already present or introduced during such procedures, was studied in both full ripened and sliced samples from two p ... | 2014 | 24361828 |
high frequency and diversity of cassette chromosome recombinases (ccr) in methicillin-susceptible staphylococcus sciuri. | previous studies produced evidence that meca, the determinant of β-lactam resistance in methicillin-resistant staphylococcus aureus (mrsa), may have originated in the most primitive and widespread animal commensal species-staphylococcus sciuri. but how the meca homologue (meca1/pbpd) was captured from s. sciuri into the staphylococcal cassette chromosome mec (sccmec) has remained unclear. | 2014 | 24535274 |
short communication: prevalence of methicillin resistance in coagulase-negative staphylococci and staphylococcus aureus isolated from bulk milk on organic and conventional dairy farms in the united states. | the objective of this study was to evaluate the presence of methicillin-resistant staphylococcus aureus and coagulase-negative staphylococcus spp. in bulk tank milk samples from 288 organic and conventional dairy farms located in new york, wisconsin, and oregon from march 2009 to may 2011. due to recent publications reporting the presence mecc (a meca homolog not detected by traditional meca-based pcr methods), a combination of genotypic and phenotypic approaches was used to enhance the recovery ... | 2014 | 24582450 |
resistance to methicillin of coagulase-negative staphylococci (cns) isolated from bovine mastitis. | the aim of this study was to determine the mechanisms of staphylococcal resistance to methicillin. cns (n = 100 isolates) were prepared from the mammary inflammatory secretions of 86 cows from farms located in the lublin region. methicillin-resistant isolates constituted 20.0% of all cns. staphylococcus sciuri (n=8) and staphylococcus xylosus (n=6) were most abundant, followed by staphylococcus chromogenes (n=3), staphylococcus haemolyticus (n=2) and staphylococcus warned (n=1). the meca gene wa ... | 2013 | 24597303 |
the ecological importance of the staphylococcus sciuri species group as a reservoir for resistance and virulence genes. | the staphylococcus sciuri species group includes five species that are most often presented as commensal animal-associated bacteria. the species of this group are staphylococcus sciuri (with three subspecies), staphylococcus lentus, staphylococcus vitulinus, staphylococcus fleurettii and staphylococcus stepanovicii. members of these group are commonly found in a broad range of habitats including animals, humans and the environment. however, those species have been isolated also from infections, ... | 2014 | 24629775 |
molecular epidemiology of methicillin-resistant staphylococcus sciuri in healthy chickens. | staphylococcus sciuri is commonly found on the skin of animals and humans as well as in the environment. however, little is known on its prevalence, resistance and epidemiology. therefore, we investigated the prevalence of methicillin resistant s. sciuri (mrss) strains in poultry, as they may represent a reservoir of resistance genes for other strains. in 2011, 281 poultry farms were sampled by taking nasal swabs of 20 animals. the swabs were pooled and mrss were selectively isolated. genus and ... | 2014 | 24636166 |
antimicrobial resistance determinants in staphylococcus spp. recovered from birds of prey in portugal. | antibiotic resistance among wild animals represent an emerging public health concern. the objective of this study was to analyze the staphylococcal nasal microbiota in birds of prey and their content in antimicrobial resistance determinants. nasal samples from 16 birds of prey were collected, swabs were dipped and incubated into bhi broth [6.5% nacl] and later seeded on manitol salt agar and oxacillin-resistance screening agar base media. staphylococcal colonies were isolated from both media and ... | 2014 | 24679961 |
characterization of sal(a), a novel gene responsible for lincosamide and streptogramin a resistance in staphylococcus sciuri. | natural resistance to lincosamides and streptogramins a (lsa), which is a species characteristic of bacillus subtilis and enterococcus faecalis, has never been documented in the staphylococcus genus. we investigate here the molecular basis of the lsa phenotype exhibited by seven reference strains of staphylococcus sciuri, including the type strains of the three described subspecies. by whole-genome sequencing of strain atcc 29059, we identified a candidate gene that encodes an atp-binding casset ... | 2014 | 24687494 |
antibacterial activity of essential oils, their blends and mixtures of their main constituents against some strains supporting livestock mastitis. | ten of the most known and used commercial essential oils (cinnamomum zeylanicum l., citrus bergamia risso, eucalyptus globulus labill., foeniculum vulgare mill., origanum majorana l., origanum vulgare l., rosmarinus officinalis l., satureja montana l., thymus vulgaris l. ct. carvacrol, thymus vulgaris l. ct. thymol) were tested against six bacteria strains staphylococcus aureus, staphylococcus chromogenes, staphylococcus sciuri, staphylococcus warneri, staphylococcus xylosus and escherichia coli ... | 2014 | 24727086 |
carriage of methicillin-resistant staphylococci by healthy companion animals in the us. | antimicrobial-resistant staphylococci have been associated with wounded or ill companion animals, but little is known about the prevalence of resistant staphylococci among healthy animals. in this study, 276 healthy dogs and cats from veterinary clinics were tested for the presence of antimicrobial-resistant staphylococcus spp. isolates were tested for antimicrobial susceptibility and the presence of select resistance genes, and typed using pulsed-field gel electrophoresis (pfge). staphylococcus ... | 2014 | 24730724 |
high prevalence of cfr-producing staphylococcus species in retail meat in guangzhou, china. | the emergence and wide distribution of the transferable gene for linezolid resistance, cfr, in staphylococci of human and animal origins is of great concern as it poses a serious threat to the public health. in the present study, we investigated the emergence and presence of the multiresistance gene, cfr, in retail meat sourced from supermarkets and free markets of guangzhou, china. | 2014 | 24913069 |
characterization of methicillin-resistant coagulase-negative staphylococci (mrcons) in retail meat. | this study was to understand the extent of methicillin-resistant coagulase-negative staphylococci (mrcons) serving as a meca reservoir in retail meat. mrcons were isolated from retail meat (beef, chicken, and turkey) in detroit and characterized by soda gene sequencing for species identification, staphylococcal cassette chromosome mec (sccmec) typing, and pulsed-field gel electrophoresis (pfge). unique mrcons isolates recovered from 25 meat samples were comprised of staphylococcus sciuri (n = 13 ... | 2014 | 24929717 |
effects of ensiling fermentation and aerobic deterioration on the bacterial community in italian ryegrass, guinea grass, and whole-crop maize silages stored at high moisture content. | the effects of storage period and aerobic deterioration on the bacterial community were examined in italian ryegrass (ir), guinea grass (gg), and whole-crop maize (wm) silages. direct-cut forages were stored in a laboratory silo for 3, 7, 14, 28, 56, and 120 d without any additives; live counts, content of fermentation products, and characteristics of the bacterial community were determined. 2,3-butanediol, acetic acid, and lactic acid were the dominant fermentation products in the ir, gg, and w ... | 2013 | 25049913 |
isolation of methicillin-resistant staphylococcus spp. from ready-to-eat fish products. | a hundred samples from ready-to-eat (rte) fish products were examined for the presence and antimicrobial susceptibility of staphylococcus spp. staphylococci were isolated from 43% of these samples (n = 100). the identified species in the samples were staphylococcus aureus (7%), staphylococcus epidermidis (13%), staphylococcus xylosus (12%), staphylococcus sciuri (4%), staphylococcus warneri (3%), staphylococcus saprophyticus (2%), staphylococcus schleiferi (1%) and staphylococcus auricularis (1% ... | 2014 | 25059796 |
characterization of methicillin-resistant staphylococcus sciuri isolates from industrially raised pigs, cattle and broiler chickens. | this study aimed at assessing the epidemiology and genetic diversity of methicillin-resistant staphylococcus sciuri (mrss) from different farm animal species. | 2014 | 25063778 |
genetic analysis of meca gene and detection of homologue pbpd in stahylococcus sciuri group. | oxacillin/methicillin-resistance is related to the meca and its regulatory genes mecr1 and meci. its origin is still unknown, although evidences support that it is related to cns, once meca and a homologue gene, pbpd, were both detected in staphylococcus sciuri species group. the present work evaluated 210 samples of skin and ear swabs from rodents and 60 nasal swabs from equines of army biologic institute, rio de janeiro. pheno- and genotypic characterization provided 59.52% (25/42) and 78.57% ... | 2014 | 25242954 |
highly effective bacterial agents against cimbex quadrimaculatus (hymenoptera: cimbicidae): isolation of bacteria and their insecticidal activities. | cimbex quadrimaculatus (hymenoptera: cimbicidae) is one of the serious pests of almonds in turkey and worldwide. since there is no effective control application against this pest, it has been a serious problem up to now. therefore, we aimed to find an effective bacterium that can be utilized as a biocontrol agent against c. quadrimaculatus in pest management. we isolated seven bacteria from dead and live c. quadrimaculatus larvae, and evaluated the larvicidal potency of all isolates on the respe ... | 2015 | 25358421 |
potential spread of multidrug-resistant coagulase-negative staphylococci through healthcare waste. | healthcare waste (hcw) might potentially harbor infective viable microorganisms in sanitary landfills. we investigated the antimicrobial susceptibility patterns and the occurrence of the meca gene in coagulase-negative staphylococcus strains (cons) recovered from the leachate of the hcw in an untreated sanitary landfill. | 2015 | 25596568 |
diversity of antimicrobial resistance and virulence genes in methicillin-resistant non-staphylococcus aureus staphylococci from veal calves. | in this study we determined whether methicillin-resistant non-staphylococcus aureus (mrnas) from veal calves may be a potential reservoir of antimicrobial-resistance and virulence genes. fifty-eight mrnas were studied by means of dna-microarray and pcr for detection of antimicrobial resistance and virulence genes. the isolates carried a variety of antimicrobial-resistance genes [aaca-aphd, aadd, aph3, aade, sat, spc, ampa, erm(a), erm(b), erm(c), erm(f), erm(t), lnu(a), msr(a)-msr(b), vga(a), mp ... | 2015 | 25637268 |
staphylococcus sciuri: an entomological case study and a brief review of the literature. | staphylococcus sciuri is an emerging gram-positive bacterial pathogen that is infrequently isolated from cases of human disease. this organism is capable of rapid conversion from a state of methicillin sensitivity to a state of methicillin resistance and has been shown to express a set of highly effective virulence factors. the antibiotic-resistance breakpoints of s. sciuri differ significantly from the more common staphylococcus species. therefore, the rapid identification of s. sciuri in clini ... | 2015 | 25770806 |
efficacy and safety of lomefloxacin on bacterial extraocular disease in the horse. | lomefloxacin is a broad-spectrum fluoroquinolone antibiotic used for the treatment of bacterial extraocular disease. this study investigated the efficacy and safety of lomefloxacin eye drops for bacterial extraocular disease in horses. lomefloxacin ophthalmic solution (0.3%) was instilled three times daily for 2-5 days in 65 horses diagnosed with bacterial extraocular disease based on clinical findings. clinical observations and bacteriological examinations were performed at the start of treatme ... | 2015 | 25787926 |
conjunctival flora of clinically normal and diseased turtles and tortoises. | in captive breed turtles and tortoises conjunctival disease is common. our aim was to investigate the bacterial and fungal flora present in the eyes of healthy and pathological chelonians and to compare findings in turtles with those in tortoises. | 2015 | 25889261 |
identification of abc transporter genes conferring combined pleuromutilin-lincosamide-streptogramin a resistance in bovine methicillin-resistant staphylococcus aureus and coagulase-negative staphylococci. | the aim of this study was to investigate the genetic basis of combined pleuromutilin-lincosamide-streptogramin a resistance in 26 unrelated methicillin-resistant staphylococcus aureus (mrsa) and coagulase-negative staphylococci (cons) from dairy cows suffering from mastitis. the 26 pleuromutilin-resistant staphylococcal isolates were screened for the presence of the genes vga(a), vga(b), vga(c), vga(e), vga(e) variant, sal(a), vmlr, cfr, lsa(a), lsa(b), lsa(c), and lsa(e) by pcr. none of the 26 ... | 2015 | 25891423 |
evaluation of the biotyper maldi-tof ms system for identification of staphylococcus species. | the bruker biotyper maldi-tof ms (biotyper) system, with a modified 30 minute formic acid extraction method, was evaluated by its ability to identify 216 clinical staphylococcus isolates from the cdc reference collection comprising 23 species previously identified by conventional biochemical tests. 16s rdna sequence analysis was used to resolve discrepancies. of these, 209 (96.8%) isolates were correctly identified: 177 (84.7%) isolates had scores ≥2.0, while 32 (15.3%) had scores between 1.70 a ... | 2015 | 26183765 |
draft genome sequence of staphylococcus sciuri subsp. sciuri strain z8, isolated from human skin. | staphylococcus sciuri subsp. sciuri strain z8 was isolated from a skin wound infection of a patient with infective endocarditis. to the best of our knowledge, the genome sequence of the species s. sciuri has not been previously studied. the complete genome sequence of strain z8 includes a genome of 2,620,868 bp (32.43% gc content) without any plasmids. | 2015 | 26205872 |
the diversities of staphylococcal species, virulence and antibiotic resistance genes in the subclinical mastitis milk from a single chinese cow herd. | staphylococci are the leading pathogens of bovine mastitis which is difficult to control. however, the published data on the prevalence of staphylococcal species, virulence and antibiotic resistance genes in bovine mastitis from china are limited. in this study, 104 out of 209 subclinical mastitis milk samples from a single chinese dairy herd were cultured-positive for staphylococci (49.8%), which were further identified as coagulase-positive staphylococci (cps) or coagulase-negative staphylococ ... | 2015 | 26276706 |
characterization of mannitol-fermenting methicillin-resistant staphylococci isolated from pigs in nigeria. | this study was conducted to determine the species distribution, antimicrobial resistance pheno- and genotypes and virulence traits of mannitol-positive methicillin-resistant staphylococci (mrs) isolated from pigs in nsukka agricultural zone, nigeria. twenty mannitol-positive methicillin-resistant coagulase-negative staphylococcal (mrcons) strains harboring the meca gene were detected among the 64 staphylococcus isolates from 291 pigs. a total of 4 species were identified among the mrcons isolate ... | 2015 | 26413075 |
branched phospholipids render lipid vesicles more susceptible to membrane-active peptides. | iso- and anteiso-branched lipids are abundant in the cytoplasmic membranes of bacteria. their function is assumed to be similar to that of unsaturated lipids in other organisms - to maintain the membrane in a fluid state. however, the presence of terminally branched membrane lipids is likely to impact other membrane properties as well. for instance, lipid acyl chain structure has been shown to influence the activity of antimicrobial peptides. moreover, the development of resistance to antimicrob ... | 2016 | 26514602 |
presence of meca-positive multidrug-resistant staphylococcus epidermidis in bovine milk samples in brazil. | bacteria of the genus staphylococcus are one of the major pathogens causing bovine mastitis. in recent decades, resistance of this genus to oxacillin (methicillin) has been a matter of concern due to the possibility of reducing the effectiveness of mastitis treatments and the transfer of resistance determinants to other bacteria. oxacillin resistance was studied in 170 staphylococci from bovine milk samples, including 79 staphylococcus aureus and 91 coagulase-negative staphylococci (cns). the su ... | 2016 | 26709182 |
identification and molecular phylogeny of coagulase-negative staphylococci isolates from minas frescal cheese in southeastern brazil: superantigenic toxin production and antibiotic resistance. | minas frescal is a typical brazilian fresh cheese and one of the most popular dairy products in the country. this white soft, semiskimmed, nonripened cheese with high moisture content is obtained by enzymatic coagulation of cow milk using calf rennet or coagulants, usually in industrial dairy plants, but is also manufactured in small farms. contamination of minas frescal by several staphylococci has been frequently reported. coagulase-negative staphylococci (cns) strains are maybe the most harmf ... | 2016 | 26830747 |
characterization of staphylococci in urban wastewater treatment plants in spain, with detection of methicillin resistant staphylococcus aureus st398. | the objective of this study was to determine the prevalence of staphylococcus in urban wastewater treatment plants (uwtp) of la rioja (spain), and to characterize de obtained isolates. 16 wastewater samples (8 influent, 8 effluent) of six uwtps were seeded on mannitol-salt-agar and oxacillin-resistance-screening-agar-base for staphylococci and methicillin-resistant staphylococcus aureus recovery. antimicrobial susceptibility profile was determined for 16 antibiotics and the presence of 35 antimi ... | 2016 | 26840519 |
co-location of the oxazolidinone resistance genes optra and cfr on a multiresistance plasmid from staphylococcus sciuri. | to identify and characterize the oxazolidinone/phenicol resistance gene optra in staphylococcus isolates. | 2016 | 26953332 |
genetic diversity and antibiotic resistance among coagulase-negative staphylococci recovered from birds of prey in portugal. | wild animal populations in contact with antimicrobials and antimicrobial resistant bacteria that are daily released into the environment are able to become unintentional hosts of these resistant microorganisms. to clarify this issue, our study evaluated the presence of antibiotic resistance determinants on coagulase-negative staphylococci recovered from birds of prey and studied their genetic relatedness by pulsed-field gel electrophoresis (pfge). the unusual vga(a) and erm(t) genes, which confe ... | 2016 | 26990729 |
antimicrobial resistance and resistance genes in aerobic bacteria isolated from pork at slaughter. | the aim of this study was to investigate the phenotypic and genotypic antimicrobial resistance, integrons, and transferability of resistance markers in 243 aerobic bacteria recovered from pork at slaughter in the people's republic of china. the organisms belonged to 22 genera of gram-negative bacteria (92.2%) and gram-positive bacteria (7.8%). high levels of resistance were detected to tetracycline, trimethoprim-sulfamethoxazole, and ampicillin (36.2 to 54.3%), and lower levels were detected to ... | 2016 | 27052863 |
nod2-mediated recognition of the microbiota is critical for mucosal adjuvant activity of cholera toxin. | cholera toxin (ct) is a potent adjuvant for inducing mucosal immune responses. however, the mechanism by which ct induces adjuvant activity remains unclear. here we show that the microbiota is critical for inducing antigen-specific igg production after intranasal immunization. after mucosal vaccination with ct, both antibiotic-treated and germ-free (gf) mice had reduced amounts of antigen-specific igg, smaller recall-stimulated cytokine responses, impaired follicular helper t (tfh) cell response ... | 2016 | 27064448 |
occurrence of cfr-mediated multiresistance in staphylococci from veal calves and pigs, from humans at the corresponding farms, and from veterinarians and their family members. | this study reports on the emergence of linezolid-resistant coagulase-negative staphylococci (cons) containing the multiresistance gene cfr in veal calves and pigs, as well as in humans exposed to these animals. cons (staphylococcus auricularis, staphylococcus cohnii, staphylococcus lentus, staphylococcus kloosii, staphylococcus sciuri, staphylococcus simulans), but not staphylococcus aureus, carrying the gene cfr were detected in samples of 12 out of 52 calves at three farms which had a history ... | 2017 | 27102205 |
structural characterization of the lipoteichoic acid isolated from staphylococcus sciuri w620. | lipoteichoic acid (lta) is an important cell envelope compound of gram-positive bacteria. lta isolated from allergy-protective staphylococcus sciuri w620 strain was characterized by chemical analyses as well as 1d and 2d nmr experiments. compositional analyses indicated the presence of glycerol (gro), phosphate-gro, alanine-gro, glucose (glc) and fatty acids. the studied strain produced lta with backbone composed of glycerol-phosphate repeating units only substituted with d-alanine (ala) and the ... | 2016 | 27196311 |
analysis of cultivable microbiota and diet intake pattern of the long-lived naked mole-rat. | a variety of microbial communities exist throughout the human and animal body. genetics, environmental factors and long-term dietary habit contribute to shaping the composition of the gut microbiota. for this reason the study of the gut microbiota of a mammal exhibiting an extraordinary life span is of great importance. the naked mole-rat (heterocephalus glaber) is a eusocial mammal known for its longevity and cancer resistance. | 2016 | 27239229 |
deciphering staphylococcus sciuri sat-17 mediated anti-oxidative defense mechanisms and growth modulations in salt stressed maize (zea mays l.). | soil salinity severely affects plant nutrient use efficiency and is a worldwide constraint for sustainable crop production. plant growth-promoting rhizobacteria, with inherent salinity tolerance, are able to enhance plant growth and productivity by inducing modulations in various metabolic pathways. in the present study, we reported the isolation and characterization of a salt-tolerant rhizobacterium from kallar grass [leptochloa fusca (l.) kunth]. sequencing of the 16s rrna gene revealed its li ... | 2016 | 27375588 |
thusin, a novel two-component lantibiotic with potent antimicrobial activity against several gram-positive pathogens. | due to the rapidly increasing prevalence of multidrug-resistant bacterial strains, the need for new antimicrobial drugs to treat infections has become urgent. bacteriocins, which are antimicrobial peptides of bacterial origin, are considered potential alternatives to conventional antibiotics and have attracted widespread attention in recent years. among these bacteriocins, lantibiotics, especially two-component lantibiotics, exhibit potent antimicrobial activity against some clinically relevant ... | 2016 | 27486447 |
metagenomic approach reveals microbial diversity and predictive microbial metabolic pathways in yucha, a traditional li fermented food. | yucha is a typical traditional fermented food of the li population in the hainan province of china, and it is made up of cooked rice and fresh fish. in the present study, metagenomic approach and culture-dependent technology were applied to describe the diversity of microbiota and identify beneficial microbes in the yucha. at the genus level, lactobacillus was the most abundant genus (43.82% of the total reads), followed by lactococcus, enterococcus, vibrio, weissella, pediococcus, enterobacter, ... | 2016 | 27578483 |
high intraspecies heterogeneity within staphylococcus sciuri and rejection of its classification into s. sciuri subsp. sciuri, s. sciuri subsp. carnaticus and s. sciuri subsp. rodentium. | a polyphasic taxonomic approach was applied to strains of the species staphylococcus sciuri in order to clarify the taxonomic legitimacy of the delineation of s. sciuri into s. sciurisubsp.sciuri, s. sciurisubsp.carnaticus and s. sciurisubsp.rodentium. a group of 81 s. sciuri isolates obtained from human (n=62) and veterinary (n=17) clinical materials and foods (n=2) and ten reference and type strains obtained from the czech collection of microorganisms were characterized by extensive biotyping ... | 2016 | 27654339 |
presence of the optra gene in methicillin-resistant staphylococcus sciuri of porcine origin. | a total of 57 methicillin-resistant staphylococcus aureus (mrsa) isolates and 475 methicillin-resistant coagulase-negative staphylococci (mrcons) collected from pigs in the guangdong province of china in 2014 were investigated for the presence of the novel oxazolidinone-phenicol resistance gene optra the optra gene was detected in 6.9% (n = 33) of the mrcons, all of which were staphylococcus sciuri isolates, but in none of the mrsa isolates. five optra-carrying methicillin-resistant (mr) s. sciu ... | 2016 | 27671067 |
biodiversity of bacteriophages: morphological and biological properties of a large group of phages isolated from urban sewage. | a large scale analysis presented in this article focuses on biological and physiological variety of bacteriophages. a collection of 83 bacteriophages, isolated from urban sewage and able to propagate in cells of different bacterial hosts, has been obtained (60 infecting escherichia coli, 10 infecting pseudomonas aeruginosa, 4 infecting salmonella enterica, 3 infecting staphylococcus sciuri, and 6 infecting enterococcus faecalis). high biological diversity of the collection is indicated by its ch ... | 2016 | 27698408 |
application of matrix-assisted laser desorption ionization time-of-flight mass spectrometry for identification of coagulase-negative staphylococci isolated from milk of cows with subclinical mastitis. | the aim of this study was to use matrix-assisted laser desorption ionization time-of-flight mass spectrometry (maldi-tof ms) for the identification of coagulase-negative staphylococci (cns) isolated from the milk of cows with subclinical mastitis. the study material consisted of 33 isolates of cns, identified by the results of api staph tests, obtained from the milk of cows with subclinical mastitis. based on the spectra analyses, maldi-tof ms tests of 33 bacterial samples allowed identification ... | 2016 | 27760034 |
exudative epidermitis of piglets caused by non-toxigenic staphylococcus sciuri. | infections with strains of staphylococcus sciuri are a potential threat to animal and public health, and a cause for considerable concern. we isolated and identified s. sciuri as a pathogen from an acute outbreak of exudative epidermitis in piglets for further genetic identification using experimental infections. the results of this study showed that s. sciuri strain nj1306 reproduced exudative epidermitis in experimentally infected 5-day-old piglets. the isolated bacteria also caused sudden dea ... | 2017 | 28110789 |
isolation of staphylococcus sciuri from horse skin infection. | staphylococcus sciuri is known as an opportunistic pathogen colonizing domesticated animals and has also been associated with wound infections in humans. particularly over the last decade, oxacillin (methicillin) resistant strains had been emerged, which now increase the medical relevance of this species. this report describes the identification of an oxacillin-resistant s. sciuri isolate from a wound infection of a horse. we determined the absence of coagulase and hyaluronidase activity and ana ... | 2016 | 28116248 |
distribution of cfr in staphylococcus spp. and escherichia coli strains from pig farms in china and characterization of a novel cfr-carrying f43:a-:b- plasmid. | the multi-resistance gene cfr is widely distributed among various gram-positive and gram-negative species in livestock in china. to better understand the epidemiology of cfr among staphylococcus spp. and e. coli isolates, 254 staphylococcus spp. and 398 e. coli strains collected from six swine farms in china were subjected to prevalence and genetic analysis. forty (15.7%) staphylococcus spp. isolates, including 38 staphylococcus sciuri strains, one staphylococcus chromogenes strain, and one stap ... | 2017 | 28293235 |
evolutionary origin of the staphylococcal cassette chromosome mec (sccmec). | several lines of evidence indicate that the most primitive staphylococcal species, the staphylococcus sciuri group, were involved in the first stages of evolution of sccmec - the genetic element carrying the β-lactam resistance gene meca. however, many steps are still missing from this evolutionary history. in particular, it is not known how meca was incorporated into the mobile element scc prior to dissemination among staphylococcus aureus and other pathogenic staphylococcal species.to gain ins ... | 2017 | 28373201 |
evidence for the evolutionary steps leading to meca-mediated β-lactam resistance in staphylococci. | the epidemiologically most important mechanism of antibiotic resistance in staphylococcus aureus is associated with meca-an acquired gene encoding an extra penicillin-binding protein (pbp2a) with low affinity to virtually all β-lactams. the introduction of meca into the s. aureus chromosome has led to the emergence of methicillin-resistant s. aureus (mrsa) pandemics, responsible for high rates of mortality worldwide. nonetheless, little is known regarding the origin and evolution of meca. differ ... | 2017 | 28394942 |