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Tytuł:
Tawny owl Strix aluco as a potential transmitter of Enterobacteriaceae epidemiologically relevant for forest service workers, nature protection service and ornithologists
Autorzy:
Grzywaczewski, Grzegorz
Kowalczyk-Pecka, Danuta
Cios, Szymon
Bojar, Wiktor
Junkuszew, Andrzej
Bojar, Hubert
Kolejko, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/989015.pdf
Data publikacji:
2017
Wydawca:
Instytut Medycyny Wsi
Tematy:
tawny owl
strix aluco
enterobacteriaceae
Opis:
Established taxa within the Enterobacteriaceae wereisolated from cloacal swabs of Strix aluco chicks in nest boxes located at five research sites. ChromID ESBL medium (bioMerieux) was used to select a pool of Enterobacteriaceae strains producing extendedspectrum beta-lactamases. Drug sensitivity of the chosen strains was determined from the full pool of Enterobacteriaceae to 6 chemotherapeutics of different mechanisms of action. The study evaluated the sensitivity of ESBL-synthesizing isolates to substances belonging to penicillins, cephalosporins, cephamycins, clavams, carbapenems and monobactams. Analysis of the results indicated a potential role of Strix aluco in the dissemination of epidemiologically-relevant Enterobacteriaceae, and, importantly, pose health risks to forest service workers, nature protection service and ornithologists. The results can also serve as the basis for further environmental studies.
Źródło:
Annals of Agricultural and Environmental Medicine; 2017, 24, 1
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of in vitro activity of doripenem, imipenem and meropenem against clinical isolates of Enterobacteriaceae, Pseudomonas and Acinetobacter in Southern Poland
Autorzy:
Drzewiecki, Artur
Bulanda, Małgorzata
Talaga, Katarzyna
Sodo, Anna
Adamski, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/1396809.pdf
Data publikacji:
2012-10-01
Wydawca:
Index Copernicus International
Tematy:
doripenem
imipenem
meropenem
Enterobacteriaceae
Pseudomonas
Acinetobacter
Opis:
In the study we tested drug sensitivity to 3 carbapenems (doripenem, imipenem and meropenem) of Gram-negative clinical isolates from Southern Poland. Material and methods. 89 strains were examined: 42 from Pseudomonas genus, 16 Acinetobacter baumannii strains and 31 Enterobacteriaceae strains. Etests were used according to the producers instructions, MIC values were interpreted using EUCAST criteria. Results. Highest in vitro activity against Pseudomonas spp. was shown for doripenem, then meropenem and the lowest for imipenem (MIC values were definitely lower for doripenem; differences were statistically significant); A. baumannii strains showed similar sensitivity to doripenem, meropenem and imipenem (differences non-significant); all Enterobacteriaceae strains showed sensitivity to the tested antimicrobials. Conclusions. As a conclusion-doripenem, which has high in vitro activity (almost the same as imipenem and meropenem) as well as beneficial pharmacologic properties, may be an alternative solution in the treatment of multiresistant Gram-negative bacteria, especially in patients in severe status who require restrictive antibiotic regimens.
Źródło:
Polish Journal of Surgery; 2012, 84, 9; 449-453
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The antibacterial properties of silage from different varieties of sorghum
Właściwości antybakteryjne kiszonek z różnych odmian sorgo
Autorzy:
Galbas, M.
Selwet, M.
Borkowski, A.
Clapa, T.
Porzucek, F.
Skrzypczak, W.
Powiązania:
https://bibliotekanauki.pl/articles/82979.pdf
Data publikacji:
2015
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
silage
antibacterial property
different variety
sorghum
Enterobacteriaceae
Lactobacillus
Źródło:
Folia Pomeranae Universitatis Technologiae Stetinensis. Agricultura, Alimentaria, Piscaria et Zootechnica; 2015, 36
2081-1284
Pojawia się w:
Folia Pomeranae Universitatis Technologiae Stetinensis. Agricultura, Alimentaria, Piscaria et Zootechnica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Antimicrobial resistant and virulence genes profiles of some Gram-negative bacteria from clinical isolates at Usmanu Danfodiyo University Teaching Hospital, Sokoto, Nigeria
Autorzy:
Nuhu, T.
Beng, E.O.B.
Bolaji, R.O.
Olayinka, T.A.
Olayinka, B.O.
Yahaya, M.
Powiązania:
https://bibliotekanauki.pl/articles/2097833.pdf
Data publikacji:
2020
Wydawca:
Instytut Medycyny Wsi
Tematy:
virulence factors
Enterobacteriaceae
anti-microbial resistance
north-west Nigeria
Opis:
Introduction and objective. Infections due to multidrug-resistant (MDR) Enterobacteriaceae are an ongoing global threat in their management. The aim of the study was to investigate the antiimicrobial resistance (AMR) and virulence gene profiles of MDR Gram-negative isolates in Sokoto, north-west Nigeria. Materials and method. A total of 578 clinical samples were collected from patients. Suspected Gram-negative bacteria were isolated from these clinical samples: vaginal swab, pus, stool, blood, wound swab and urine, using Gram-staining and conventional biochemical reactions. These isolates were further identified with an identification kit (Microgen-GN-A), and tested against a panel of 11 antibiotics. A single polymerase chain reaction (PCR) assay targeting 13 virulence gene related to adhesion (fimH, papC, and sfaS), iron chelation (iutA, and fyuA), toxins (astA, stx1, stx2, and eaeA), biofilm (bssS), and serum resistance (traT, iss, and kapsMTII) encoding genes were evaluated. Results. A total of 276 Gram-negative isolates were identified using the Gram stain and biochemical reactions. These organisms were further confirmed with identification kit. Of the 276 isolates, 36 organisms of interest (23 Escherichia coli, 4 Klebsiella pneumoniae and 9 Proteus mirabilis) were identified. Other Gram-negative isolates accounted for the remaining 86.9%. The majority of the isolates were resistant to cefixime (100%) and partially resistant to amikacin (19.4%).The virulence genes bssS (58.3%), fimH (44.4%), and iutA (44.4%) were the most prevalent, whereas kapsMTII (5.6%) and stx2 (2.8%) were least detected, while astA was not detected in any of the isolates. Conclusion. The study elucidated the prevalence of antibiotic resistance and virulence genes in Gram-negative bacteria from clinical isolates in Sokoto, north-western Nigeria. The majority of the isolates were MDR, thereby posing a public health risk.
Źródło:
Journal of Pre-Clinical and Clinical Research; 2020, 14, 2; 52-57
1898-2395
Pojawia się w:
Journal of Pre-Clinical and Clinical Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Detection and enumeration of Enteric bacteria associated with food handlers and surfaces of food manufacturing industry located in Hub city, Pakistan
Autorzy:
Ali, Razim
Hayat, Amir
Fatima, Madiha
Noman, Muhammad
Powiązania:
https://bibliotekanauki.pl/articles/1182928.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
enterobacteriaceae
foodborne microbes
hygiene
surface contamination
food handlers
e. coli
sanitation
Opis:
Foodborne microorganisms harbor and adheres itself to the food material and surrounding surfaces for a long time and influence the food quality and consumers health. Among these microbes the presence of Enteric indicator bacteria in food premises confers the indication of entero-pathogens, i.e. E. coli, Salmonella, Shigella and Campylobacters that could cause severe systemic infections in consumers. In this study, the hygienic status of confectionery and supplementary food processing facility was evaluated. A total of 10497 examinations were performed on 3499 swab samples collected from food premises and handlers for the analysis of Enteric indicator bacteria. From swabs, 1277 (12.2%) isolates were identified in which Enterobacteriaceae were found with higher frequency 604 (47.3%) followed by Coliforms 293 (30.8%) and Escherichia coli 280 (21.9%) respectively. The mean count (CFU/cm2) was found maximum for plain surfaces (floors, walls and door), while the lowest was for equipment and machinery. Overall isolates percent prevalence was determined where Enterobacteriaceae were 47%, Coliforms 31% and Escherichia coli 22%. Majority of the floor surfaces were highly contaminated, where washing and sanitation practices were observed to be inappropriate. Worker hygiene status was lacking essential food safety and hygiene standards. In general, the Enteric bacteria were found with higher ratio, that could affect the food quality and quantity both to a greater extent with some influences on consumers health.
Źródło:
World Scientific News; 2016, 49, 2; 192-203
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Occurrence and plasmid profiles of multidrug-resistant Enterobacteriaceae isolated from hawked soymilk samples in the Polytechnic of Ibadan Community, Nigeria
Autorzy:
Fadahunsi, I.F.
Babalola, D.O.
Powiązania:
https://bibliotekanauki.pl/articles/2096396.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
occurrence
plasmid profiles
multidrug-resistant Enterobacteriaceae
soymilk
Ibadan Polytechnic
Community
Opis:
This study was conducted to determine the occurrence, antibiotic susceptibility pattern, and plasmid profile of multidrug-resistant (MDR) Enterobacteriaceae isolated from soymilk hawked in the Ibadan Polytechnic Community, Nigeria. Bacterial isolation and identification were performed using a culture-dependent method and biochemical characterization, respectively, while antibiotic susceptibility was tested using the disk diffusion method. Plasmid analysis and curing were performed using standard procedures. The results revealed the following occurrence rate of bacterial species in soymilk samples collected from all axes (South, North, East, West, and Central) of Ibadan Polytechnic: Citrobacter spp., 64%; Klebsiella spp., 7%; Enterobacter spp., Escherichia coli, and Serratia spp., 6% each; Proteus spp., 5%; and Salmonella spp. and Shigella spp., 3% each. The highest heterotrophic bacterial count of 9.3 × 103 CFU/ml was recorded at Ibadan Polytechnic North and South, while the least count (3.2 × 107 CFU/ml) was recorded at Ibadan Polytechnic Central. The highest enteric bacterial count of 1.3 × 103 CFU/ml was recorded in soymilk samples from Ibadan Polytechnic Central, while the least count of 1.7 × 107 CFU/ml was recorded in soymilk samples from Ibadan Polytechnic North. A total of 26% of the isolates showed resistance to cefpodoxime, while 88% of the isolates were susceptible to trimethoprim-sulfamethoxazole. Four of the MDR isolates possessed plasmid bands ranging from 6 to 1 with molecular weights from 2.7 to 17.2 kbp. Enterobacteriaceae such as isolates O14 (Klebsiella spp.) and B10 (E. coli) retained their resistance to antibiotics even after removal of plasmids, while isolates S13 (Citrobacter spp.) and O4 (Shigella spp.) were susceptible to some antibiotics after curing. Conclusively, soymilk sold in the sampled areas was highly contaminated with Enterobacteriaceae, thereby indicating poor hygiene standards of soymilk production.
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2021, 102, 2; 209-223
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania mikrobiologiczne owocowych past do zębów dla dzieci
Microbiological analysis of fruit-flavoured toothpastes for children
Autorzy:
Wlodarczak, K.
Pawlarczyk, A.
Maciaszek, A.
Powiązania:
https://bibliotekanauki.pl/articles/873389.pdf
Data publikacji:
1978
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:
dzieci
pasty do zebow
pasty owocowe
badania mikrobiologiczne
bakterie
Enterobacteriaceae
zanieczyszczenia bakteryjne
Źródło:
Roczniki Państwowego Zakładu Higieny; 1978, 29, 4
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microbiological characterization of vegetables and their rhizosphere soil in Eastern Poland
Autorzy:
Kłapeć, Teresa
Cholewa, Alicja
Cholewa, Grażyna
Dutkiewicz, Jacek
Wójcik-Fatla, Angelina
Powiązania:
https://bibliotekanauki.pl/articles/989616.pdf
Data publikacji:
2016
Wydawca:
Instytut Medycyny Wsi
Tematy:
microbiological quality
vegetables
soil
aerobic bacteria
enterobacteriaceae
coliform bacteria
salmonella
clostridium
perfringens
Opis:
The aim of this study was to investigate the bacteriological quality of 5 kinds of vegetables (lettuce, dill, radish, beetroot, carrot) and their rhizosphere soil, originating from conventional farms located in the Lublin Province of Eastern Poland. A total number of 35 samples of fresh vegetables (FV) taken immediately from soil, 35 samples of soil from rhizosphere of these vegetables (SR) and 35 samples of vegetables sold at retail in the markets in Lublin (VR) were examined. The samples were analysed for the content of: aerobic mesophilic bacteria (AMB) grown at 30 °C and 37 °C, Gram-negative bacteria of Enterobacteriaceae family, faecal coliform (FC) bacteria, Salmonella spp., and Clostridium perfringens. Median AMB values determined at 30 °C for FV, SR and VR were 5.27, 5.00, and 5.00 log10 CFU g-1, respectively, being significantly greater compared to those recorded at 37 °C. The exceeding of the threshold value of 6.0 log10 CFU g-1 proposed by Gelosa (1998) was noted only in 5 FV samples grown at 30 °C (14.3%), and in 3 FV samples grown at 37 °C (8.6%). The threshold value was never exceeded in SR and VR samples. Median concentrations of Enterobacteriaceae determined for FV, SR and VR were 4.03, 3.87, and 3.04 log10 CFU g-1, respectively. Eleven species of Enterobacteriaceae were identified in the FV, SR and VR samples. The percent of samples containing Escherichia coli was greatest for VR (22.9%), smaller for FV (17.1%) and smallest for SR (5.7%). The median concentrations of the faecal coliform bacteria (FC), determined by culture at 44oC, were low, amounting to 1.000 log10 CFU g-1 for FV and SR and 0.00 for VR. All examined vegetable and soil samples tested negative for the presence of Salmonella. The median concentrations of Clostridium perfringens were low, amounting to 0.00 log10 CFU g-1 for all categories of samples. This bacterium was relatively common in soil samples with the prevalence of 40.0%, but very rare in vegetable samples (occurring in 5.7% of FV and in none of VR samples). In conclusion, the results of the present study generally indicate that the microbiological quality of Polish vegetables grown on conventional farms is satisfactory and safe for consumers.
Źródło:
Annals of Agricultural and Environmental Medicine; 2016, 23, 4
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Group II intron-mediated deletion of lactate dehydrogenase gene in an isolated 1,3-propanediol producer Hafnia alvei AD27
Autorzy:
Celińska, Ewelina
Drożdżyńska, Agnieszka
Wita, Agnieszka
Juzwa, Wojciech
Białas, Wojciech
Czaczyk, Katarzyna
Grajek, Włodzimierz
Powiązania:
https://bibliotekanauki.pl/articles/1038697.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
1,3-propanediol
gene knock-out
metabolic engineering
Enterobacteriaceae
group II intron
lactate dehydrogenase
Opis:
Our previous studies showed that glycerol fermentation by Hafnia alvei AD27 strain was accompanied by formation of high quantities of lactate. The ultimate aim of this work was the elimination of excessive lactate production in the 1,3-propanediol producer cultures. Group II intron-mediated deletion of ldh (lactate dehydrogenase) gene in an environmental isolate of H. alvei AD27 strain was conducted. The effect of the Δldh genotype in H. alvei AD27 strain varied depending on the culture medium applied. Under lower initial glycerol concentration (20 gL-1), lactate and 1,3-propanediol production was fully abolished, and the main carbon flux was directed to ethanol synthesis. On the other hand, at higher initial glycerol concentrations (40 gL-1), 1,3-propanediol and lactate production was recovered in the recombinant strain. The final titers of 1,3-propanediol and ethanol were similar for the recombinant and the WT strains, while the Δldh genotype displayed significantly decreased lactate titer. The by-products profile was altered upon ldh gene deletion, while glycerol utilization and biomass accumulation remained unaltered. As indicated by flow-cytometry analyses, the internal pH was not different for the WT and the recombinant Δldh strains over the culture duration, however, the WT strain was characterized by higher redox potential.
Źródło:
Acta Biochimica Polonica; 2017, 64, 1; 123-133
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nowe zagrożenia mikrobiologiczne w żywności
The new microbiological hazards in food
Autorzy:
Sciezynska, H
Mackiw, E
Maka, L
Pawlowska, K
Powiązania:
https://bibliotekanauki.pl/articles/874300.pdf
Data publikacji:
2012
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:
zywnosc
zagrozenia mikrobiologiczne
bakterie chorobotworcze
wirusy
Escherichia coli
Enterobacteriaceae
zagrozenia zdrowia
zywienie czlowieka
Opis:
Opisano nowe zagrożenia mikrobiologiczne w żywności. W 2011 roku w Niemczech wyizolowano werotoksyczny szczep Escherichia coli O104:H4 pochodzący z partii kiełków kozieradki, sprowadzonej z Egiptu. Szczep ten charakteryzował się unikalnymi cechami: obecnością tylko werotoksyny vtx2 (wariant vtx2a), obecnością genów aatA, aggR, aap, aggA, aggC oraz opornością na większość antybiotyków. Innym, niespotykanym do niedawna w Polsce patogenem jest Yersinia enterocolitica o serotypie O8 biotyp 1B. Ten bio-serotyp należy do najbardziej chorobotwórczych dla ludzi. Najczęściej zatrucia pokarmowe związane z Yersinia związane są ze spożyciem wieprzowiny. Omówiono również problem występowania neurotoksyn botulinowych w żywności. Nowym zagrożeniem żywności mogą być bakterie wytwarzające beta-laktamazy o rozszerzonym spektrum substratowym (Extended-Spectrum Beta-Lactamases - ESBL). Zjawisko to odnosi się do wszystkich gatunków pałeczek z rodziny Enterobacteriaceae. Wśród izolowanych z żywności drobnoustrojów coraz większą rolę w zwiększaniu się oporności na antybiotyki przypisuje się metycylinoopornym szczepom Staphylococcus aureus (Methicillin-Resistant Staphylococcus aureus- MRSA). Występowanie zatruć pokarmowych u ludzi może być związane również z obecnością wirusów w żywności i wodzie. Nośnikiem wirusów mogą być urządzenia i linie technologiczne, opakowania, a także człowiek. Najwięcej zachorowań po spożyciu żywności wywołane było norowirusami, rotawirusami, wirusem hepatitis typu A i wirusem hepatitis typu E.
This paper describes the new microbiological hazards in food. For protecting human health, nowadays food safety authorities face with many challenges, that years ago were largely unheard. In 2011 verocytotoxigenic Escherichia coli O104:H4 has been isolated in Germany. Strain came from fenugreek sprouts originated from Egypt. It was characterized by unique features such as presence of enteroaggregative Escherichia coli genes (aatA, aggR, aap, aggA, aggC) and resistance to most antibiotics. In Poland only three cases of disease caused by O104:H4 strain have been reported. Another emergence pathogen in Poland is Yersinia enterocolitica O8, biotype 1B. It is the most pathogenic bioserotype recently isolated in the USA only. Food-borne is commonly associated with raw or undercooked pork. The source of Yersinia spp. may be also milk and water. The presence of botulinum neurotoxins in food is not new, but still an important issue because of their high toxicity to human. Botulinum neurotoxins are high-molecular thermolabile proteins produced by Clostridium botulinum and some strains of Clostridium butyricum and Clostridium baratii. Based on their antigenic properties, botulin neurotoxins are divided into seven types A-G, however only types A, B, E and F are toxic to humans and some animals. Increasing risk associated with food results from antimicrobial resistance eg. extended spectrum beta-lactamases (ESBLs) producing bacteria, particularly Enterobacteriaceae. Until recently strains ESBL+ were isolated in hospitals, however during last years they have been isolated from healthy humans, animals and food of animal origin. Increasingly common microbiological hazard in food is methicillin-resistant Staphylococcus aureus (MRSA). Although prevalence of this pathogen in food is not high, the thread comes from difficulties of treating of infections caused by MRSA. The occurrence of food-borne in humans may also be associated with presence of viruses in food and water. The carrier of viruses may be equipment in food plant, production line, packaging and man. Most food-borne are caused by noroviruses, rotaviruses, hepatitis A virus and hepatitis E virus. An increased number of food-borne viral outbreaks are recorded in several countries. Reasons for this include the improved diagnostic methods that have enhanced detection of some virus groups, and the increased marketing of fresh and frozen foods that has led to a worldwide availability of high risk food. Viruses may contaminate food either through contamination at source, principally through sewage pollution of the environment, or in association with food processing through inadequate hygiene practices of operatives or systems. Consequently, many different food products such as vegetables, shellfish and a great variety of ready-to-eat foods have been implicated in food-borne viral infections.
Źródło:
Roczniki Państwowego Zakładu Higieny; 2012, 63, 4
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Występowanie bakterii z rodzaju Yersinia w wodzie studni przydomowych
BAKTERII IZ RODA YERSINIA WYSTUPAJUSHHIE W WODE PRIDOMOWYKH KOLODCEW
PRESENCE OF YERSINIA ORGANISMS IN THE WATER FROM PRIVATE WELLS
Autorzy:
Maleszewska, J.
Krogulska, B.
Bielecka, Z.
Stypulkowska-Misiurewicz, H.
Powiązania:
https://bibliotekanauki.pl/articles/873451.pdf
Data publikacji:
1988
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:
bakterie
Enterobacteriaceae
Yersinia
Yersinia pestis
Yersinia pseudotuberculosis
Yersinia enterocolitica
Yersinia kristensenii
studnie przydomowe
zanieczyszczenie wod
Źródło:
Roczniki Państwowego Zakładu Higieny; 1988, 39, 5
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie automatu COBAS Bact w identyfikacji pałeczek Gram ujemnych z rodziny Enterobacteriaceae i określaniu wrażliwości bakterii na antybiotyki
Primenenie avtomata COBAS Bact dlja identifikacii gramotricatel'nykh palochek iz sem'i Enterobacteriaceae i opredelenija chuvstvitel'nosti bakterijj na antibiotiki
The use of the COMBAS Bact automatic device for identification of Gram-negative Enterobacteriaceae organisms and determination of bacterial sensitivity to antibiotics
Autorzy:
Borowski, J.
Jakubicz, P.
Kaczmarski, W.
Linda, H.
Rogalewski, M.
Powiązania:
https://bibliotekanauki.pl/articles/2187448.pdf
Data publikacji:
1988
Wydawca:
Polskie Towarzystwo Diagnostyki Laboratoryjnej
Tematy:
diagnostyka laboratoryjna
diagnostyka bakteriologiczna
bakterie Gram-ujemne
Enterobacteriaceae
identyfikacja
wrazliwosc na antybiotyki
automat COBAS Bact
zastosowanie
Źródło:
Diagnostyka Laboratoryjna; 1988, 24, 3; 169-176
0867-4043
Pojawia się w:
Diagnostyka Laboratoryjna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The role of complement activity in the sensitivity of Salmonella O48 strains with sialic acid-containing lipopolysaccharides to the bactericidal action of normal bovine serum
Autorzy:
Bugla-Ploskonska, G
Futoma-Koloch, B.
Rybka, J.
Gamian, A.
Doroszkiewicz, W.
Powiązania:
https://bibliotekanauki.pl/articles/32048.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
bacterial strain
Salmonella
normal bovine serum
sensitivity
sialic acid
lipopolysaccharide
bactericidal activity
animal tissue
glycoconjugation
microorganism
Enterobacteriaceae
Opis:
Sialic acids are important constituents of animal tissue glycoconjugates and are also present in the antigens of some bacterial strains. Capsular polysaccharides with sialic acid (NeuAc) have been extensively studied with regard to sensitivity to the bactericidal action of serum, whereas little is known in this regard about lipopolysaccharides (LPS) which contain NeuAc. Strains of Salmonella 048, able to infect animals and containing the same structures of LPS with NeuAc, were examined for their susceptibility to the bactericidal action of normal bovine serum (NBS). The strains showed varied sensitivity to the bactericidal action of NBS, which indicates that the expression of LPS containing NeuAc residues is not critical for the strains' resistance to the serum's activity. In this study the mechanisms of complement activation responsible for killing serum-sensitive Salmonella 048 rods by NBS were also established. Three such mechanisms were distinguished: activation of the classi- cal/lectin pathways, important (decisive) in the bactericidal mechanism of complement activation, parallel activation of the classical/lectin and alternative pathways, and independent activation of the classical and lectin or the alternative pathway.
Źródło:
Polish Journal of Veterinary Sciences; 2010, 13, 1; 53-62
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Co-existence of Legionella and other Gram-negative bacteria in potable water from various rural and urban sources
Autorzy:
Stojek, N.M.
Dutkiewicz, J.
Powiązania:
https://bibliotekanauki.pl/articles/49229.pdf
Data publikacji:
2011
Wydawca:
Instytut Medycyny Wsi
Tematy:
coexistence
Legionella
Gram-negative bacterium
Enterobacteriaceae
potable water
rural source
urban source
farm
agriculture
rural supply system
Źródło:
Annals of Agricultural and Environmental Medicine; 2011, 18, 2
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ nawożenia nawozami naturalnymi i mineralnymi w różnych dawkach na liczebność wybranych grup mikroorganizmów epifitycznych runi łąkowej
The effect of fertilization with different doses of natural and mineral fertilizers on the volume of selected groups of meadow epifitical microorganisms
Autorzy:
Kiliszczyk, Anna
Kierasińska, Katarzyna
Wróbel, Barbara
Powiązania:
https://bibliotekanauki.pl/articles/338120.pdf
Data publikacji:
2019
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
bakterie tlenowe
drożdże
Enterobacteriaceae
gnojówka
grzyby pleśniowe
obornik
aerobic bacteria
enterobacteria
liquid manure
manure
mold fungi
yeast
Opis:
Celem badań przeprowadzonych w latach 2009–2011 była ocena wpływu nawożenia łąki trwałej nawozami naturalnymi (obornikiem i gnojówką) i nawozami mineralnymi (wprowadzonymi w trzech różnych dawkach) na liczebność wybranych mikroorganizmów epifitycznych bytujących na runi łąkowej. Próbki roślin do badań pobierano trzykrotnie w trakcie sezonu wegetacyjnego. W ramach badań eksperymentalnych oceniano: ogólną liczebność bakterii tlenowych, bakterii z rodzaju Enterobacteriaceae oraz drożdży i grzybów pleśniowych. W wyniku przeprowadzonych badań nie wykazano różnic w liczebności badanych grup drobnoustrojów bytujących na roślinności łąkowej nawożonej różnymi nawozami i w różnych dawkach. Stwierdzono jednak, że liczebność poszczególnych grup mikroorganizmów zależała przede wszystkim od terminu pobierania próbek. Największe liczebności wszystkich badanych mikroorganizmów stwierdzono w drugim roku badań (2010 r.). Liczba bakterii tlenowych rosła statystycznie istotnie wraz z okresem wzrostu roślin (kolejnym pokosem) i była największa w trzecim terminie zbioru. W próbkach świeżej masy roślin z trzeciego pokosu w drugim roku badań stwierdzano największą liczbę bakterii z rodzaju Enterobacteriaceae (6,61 jtk∙g–1) oraz bakterii tlenowych (8,65 jtk∙g–1). W próbkach z tego samego roku badań, ale z drugiego pokosu, odnotowano największą liczebność grzybów pleśniowych (5,88 jtk∙g–1) i drożdży (3,44 jtk∙g–1).
The study The aim of the research carried out in 2009–2011 was to assess the effect of fertilizing meadow with natural fertilizers (manure and liquid manure) and mineral fertilizers on the number of selected epiphytic microorganisms living on the meadow sward. Samples of plants for testing were collected three times during the growing season. The total number of aerobic bacteria, enterobacteria, yeast and mold fungi were assessed as a part of the study. As a result of the conducted experimental research, there were no differences in the number of examined groups of microorganisms living on the meadow plants fertilized with various fertilizers and doses. However, it was found that the number of individual groups of microorganisms depended mainly on the date of sampling. The largest number of all studied microorganisms occurred in the second year of the research (2010). In the samples of plants from the third cut in the second year of the study, the highest number of bacteria of the family Enterobacteriaceae (6.61 cfu∙g–1) and aerobic bacteria (8.65 cfu∙g–1) were found. In the samples from the same research year, but from the second cut, the highest numbers of mold fungi (5.88 cfu∙g–1) and yeast (3.44 cfu∙g–1) were recorded.
Źródło:
Woda-Środowisko-Obszary Wiejskie; 2019, 19, 2; 53-67
1642-8145
Pojawia się w:
Woda-Środowisko-Obszary Wiejskie
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 19

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