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    Wyświetlanie 1-8 z 8
    Tytuł:
    Fosfomycin as an alternative therapeutic option for treatment of infections caused by multi-resistant Gram-negative bacteria
    Autorzy:
    Zdzieblo, M.
    Andrzejczuk, S.
    Chudzik-Rzad, B.
    Juda, M.
    Malm, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/3109.pdf
    Data publikacji:
    2014
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    fosfomycin zob.phosphomycin
    phosphomycin
    phosphonomycin zob.phosphomycin
    Monurol zob.phosphomycin
    Monuril zob.phosphomycin
    alternative option
    therapeutic agent
    treatment
    infection
    Gram-negative bacterium
    cystic fibrosis
    urinary tract
    prostatitis
    human disease
    Opis:
    The problem of significantly reduced drug use concerns particularly the infections caused by multi-resistant pathogens, especially Gram-negative bacteria. In this regard, interest is increasing in the known for nearly 50 years, but now frequently forgotten antibiotic – fosfomycin. Fosfomycin possesses high effectiveness for multidrug-resistant bacteria, comprising of extended-spectrum β-lactamases (ESBL), Klebsiella pneumoniae carbapenemases (KPC); commonly, the pandrug-resistant (PDR) and the extensively drug-resistant (XDR) strains, especially from Enterobacteriaceae family. Because of facilitated distribution into inflamed tissues and a very broad range of in vitro bactericidal activity, fosfomycin may have various applications in the treatment of many kinds of bacterial infections, including acute uncomplicated infections of the urinary bladder or complicated urinary tract infections, urinary tract sepsis, pyelonephritis, cystitis, prostatitis and chronic lung infections in patients with cystic fibrosis, the great majority caused by multi-resistant Gram-negative bacteria, and in the therapy eradicating multidrug-resistant Helicobacter pylori. Fosfomycin may limit the toxicity of other antibiotics and play a protective role in the process of bacterial resistance development during the therapy. Combinations of different antimicrobials enable the use of forgotten antibiotics in commonly occurring infections, although they are still completely incurable.
    Źródło:
    Journal of Pre-Clinical and Clinical Research; 2014, 08, 2
    1898-2395
    Pojawia się w:
    Journal of Pre-Clinical and Clinical Research
    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:
    Reduction of the soil environmental impact caused by the presence of total petroleum hydrocarbons (TPH) by using Pseudomonas sp.
    Autorzy:
    Paredes Páliz, Karina
    Cunachi, Ana M.
    Licta, Edwin
    Powiązania:
    https://bibliotekanauki.pl/articles/35551186.pdf
    Data publikacji:
    2022
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
    Tematy:
    bioaugmentation
    biodegradation
    total petroleum hydrocarbons
    efficiency
    bacterium
    Opis:
    This research focuses on the bioaugmentation with Pseudomonas sp. (native) and Pseudomonas aeruginosa (commercial) for the biodegradation of total petroleum hydrocarbons (TPH) of the environmental soil samples of the AqLab laboratory in Orellana, Ecuador. Two treatments of sterilized soil (one inoculated with the native strain and the other inoculated with the commercial strain), where used for physical- -chemical analyzes as well as the degradation of TPH. They were evaluated every 20 days for a total period of 80–100 days. The native bacterium was isolated from the laboratory agglomerates in a selective culture medium specific for Pseudomonas sp. The biodegradation of the TPH exhibited a positive result after 80 and 100 days of treatment, with a reduction of 84 and 96% of initial TPH after the bacterial inoculation. The comparison between the two strains evaluated, commercial and native, showed a greater efficiency of biodegradation by the native strain isolated directly from the agglomerates, suggesting working with native strains of the place that have a greater adaptability to the contaminated environment that would ensure bioremediation processes faster and more efficient, low cost and environmentally friendly.
    Źródło:
    Scientific Review Engineering and Environmental Sciences; 2021, 30, 4; 573-584
    1732-9353
    Pojawia się w:
    Scientific Review Engineering and Environmental Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ Bacillus subtilis i Trichoderma asperellum na rozwój sadzonek brzóz zainfekowanych patogenem drobnych korzeni Phytophthora plurivora
    Influence of Bacillus subtilis and Trichoderma asperellum on the development of birch seedlings infected with fine root pathogen Phytophthora plurivora
    Autorzy:
    Oszako, T.
    Żółciak, A.
    Tulik, M.
    Tkaczyk, M.
    Stocki, M.
    Nowakowska, J.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/985763.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Leśne
    Tematy:
    lesnictwo
    fitopatologia lesna
    brzoza brodawkowata
    Betula pendula
    sadzonki
    fytoftoroza
    Phytophthora plurivora
    rozwoj roslin
    grzyby antagonistyczne
    Trichoderma asperellum
    bakterie antagonistyczne
    Bacillus subtilis
    oomycetes
    bacterium
    fungus
    interactions
    betula pendula
    Opis:
    Phytophthora pathogens cannot be controlled with well−known fungicides, because as oomycetes they do not synthesize chitin and ergosterol. Phytopathogenic microorganisms of Phytophthora genus offers an alternative to pesticides. The aim of the study was to understand the interactions among the host silver birch (Betula pendula), a common forest tree species in Polish lowlands and in lower mountain locations, and its primary pathogen Phytophthora plurivora as well as potential Biological Control Agents Bacillus subtilis and Trichoderma asperellum. The 2−year−old silver birch seedlings were selected for this experiment. Interactions between P. plurivora and B. subtilis, producing peptide antibiotics including polymyxin B and subtiline, stimulated growth of birch seedlings. Comparing to the control a stimulation of both height and root collar diameter of plants was observed when B. subtilis was added into the soil of pots. It is a saprophyte, decomposing organic compounds of plant origin. However, the application of bacterium into the rhizosphere soil stimulated more shoots growth than roots. The application of T. asperellum into the soil stimulated development of roots, and in consequences the above−ground parts of plants. However, in the combination with pathogen, T. asperellum protected the roots only partially. The presence of pathogen and its antagonists increases the biomass of birches compared to control plants. Chlorophyll fluorescence studies proved better parameters like total performance index (PI total) after application of B. subtilis, in contrast, interaction between B. subtilis and P. plurivora negatively affected photosynthesis causing weakening of plants. The higher content of carboxylic acids, observed in the variant with T. asperellum + P. plurivora, indicates the initiation of biochemical defence processes in birch leaves cells.
    Źródło:
    Sylwan; 2019, 163, 12; 1006-1015
    0039-7660
    Pojawia się w:
    Sylwan
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Composition of norfloxacin-resistant bacteria and isolation of norfloxacin-degrading bacteria in subtropical aquaculture ponds in China
    Autorzy:
    Mao, Lutian
    Chen, Lifen
    Wang, Xirui
    Xu, Zhongbao
    Ouyang, Hui
    Huang, Biyou
    Zhou, Libin
    Powiązania:
    https://bibliotekanauki.pl/articles/4790189.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    high-throughput sequencing
    norfloxacin
    antibiotic resistant bacterium
    pond culture
    Opis:
    To analyze the composition of norfloxacin-resistant bacteria and norfloxacin-degrading bacteria in pond water and sediment in subtropical China, the composition of antibiotic resistant bacteria in pond water and sediment enriched with norfloxacin-containing medium was analyzed by high-throughput sequencing. Sediment and water samples were collected from 3 fish ponds in subtropical China, and domesticated with norfloxacin, subsequently norfloxacin-resistant bacteria through high-throughput sequencing of 16S rDNA, and isolated norfloxacin--degrading bacteria. Our results showed that the pond sediment and water contain a variety of norfloxacin-resistant bacteria, mainly from Proteobacteria, Bacteroidetes, Actinobacteria, Firmicutes, and Chloroflexi. Moreover, we isolated two norfloxacin-degrading bacteria (NorXu-2 and NorXu-3). The norfloxacin-degrading rate by NorXu-2 and NorXu-3 in the culture mediums with 200 μg/mL was the highest, which was up to 49.71% and 35.79%, respectively. When the norfloxacin concentration was 200 μg/mL, NorXu-2 and NorXu-3 had the best norfloxacin- -degrading effect at pH of 6, and the degradation rates were 53.64% and 45.54%, respectively. Moreover, NorXu-3 exhibited a good tolerance to high NaCl concentration. These results not only provided basic data for the follow-up study of the molecular mechanism of antimicrobial microbial degradation, but also provided potential norfloxacin degrading bacteria for norfloxacin removal and bioremediation in aquaculture environment.
    Źródło:
    Archives of Environmental Protection; 2022, 48, 4; 95--101
    2083-4772
    2083-4810
    Pojawia się w:
    Archives of Environmental Protection
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Identification of the csp gene and molecular modelling of the CspA-like protein from Antarctic soil-dwelling psychrotrophic bacterium Psychrobacter sp. B6
    Autorzy:
    Kaufman-Szymczyk, Agnieszka
    Wojtasik, Arkadiusz
    Parniewski, Paweł
    Białkowska, Aneta
    Tkaczuk, Karolina
    Turkiewicz, Marianna
    Powiązania:
    https://bibliotekanauki.pl/articles/1040620.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    nucleic acid binding
    cold shock protein
    RNA chaperone
    CspA-like protein
    Cold-living bacterium
    Opis:
    We cloned and sequenced the cspA-like gene from a psychrotrophic Antarctic soil-dwelling bacterial strain Psychrobacter sp. B6. The gene is 213 bp long and shows 99% and 98% sequence identity with the Psychrobacter cryohalolentis K5 gene encoding a cold-shock DNA-binding domain protein and the Psychrobacter arcticus transcriptional regulator-CspA gene, respectively. The protein encoded by the Psychrobacter sp. B6 cspA-like gene shows 100% identity with the two proteins mentioned above, and also 61% sequence identity with CspB from Bacillus subtilis and Csp from Bacillus caldolyticus, and 56% - with Escherichia coli CspA protein. A three-dimensional model of the CspA-like protein from Psychrobacter sp. B6 was generated based on three known structures of cold shock proteins: the crystal structure of the major cold shock protein from Escherichia coli (CspA), the NMR structure of the latter protein, and the NMR structure of Csp from Thermotoga maritima. The deduced structure of the CspA-like protein from Psychrobacter sp. B6 was found to be very similar to these known structures of Csp-like proteins.
    Źródło:
    Acta Biochimica Polonica; 2009, 56, 1; 63-69
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Efficacy of a novel biofilter in hatchery sanitation: I. Removal of airborne bacteria, dust and endotoxin
    Autorzy:
    Chmielowiec-Korzeniowska, A
    Tymczyna, L.
    Skorska, C.
    Sitkowska, J.
    Cholewa, G.
    Dutkiewicz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/51220.pdf
    Data publikacji:
    2007
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    prevention
    animal breeding
    organic dust
    dust
    Enterococcus faecalis
    biofilter
    mesophilic bacteria
    endotoxin
    Gram-negative bacterium
    hygiene
    bioaerosol emission
    airborne bacteria
    hatchery
    bacteria
    animal hygiene
    Opis:
    A novel biofi lter containing organic, bentonite and halloysite media was applied for elimination of microbial pollutants from the air of an industrial hatchery. The concentrations of total mesophilic bacteria, Gram-negative bacteria, thermophilic actinomycetes, dust and bacterial endotoxin were determined in the air of hatchery during 2 months before installation of the biofi lter, and during 6 months after installation of the biofi lter, at the inlet and outlet ducts from each medium. Before installation of the biofi lter, the concentrations of total mesophilic bacteria, Gram-negative bacteria, thermophilic actinomycetes, dust and endotoxin in the air were within the ranges of 0.97- 131.2 × 103 cfu/m3, 0.0-34.4 × 103 cfu/m3, 0.0-0.02 × 103 cfu/m3, 0.37-4.53 mg/m3, and 50.9-520,450.4 ng/m3, respectively. Enterococcus faecalis and Gram-negative bacteria (Acinetobacter spp., Escherichia coli, Enterobacter cloacae, and other species) prevailed among bacterial species recovered from the air of the hatchery. A total of 56 species or genera of bacteria were identifi ed in the air samples taken in the examined hatchery; of these, 11, 11 and 6 species or genera respectively were reported as having allergenic, immunotoxic and/or infectious properties The concentrations of total mesophilic bacteria, Gram-negative bacteria, Enterococcus faecalis and endotoxin found at the inlet duct of the biofi lter after its installation were signifi cantly smaller compared to those recorded before its installation (p<0.05). The concentrations of Gram-negative bacteria, Enterococcus faecalis and dust found at the outlet ducts of biofi lter after its installation were signifi cantly smaller compared to those recorded at the inlet duct of the biofi lter (p<0.01). The concentrations of total meso-philic bacteria were also smaller at the outlet ducts of the biofi lter compared to that at the inlet duct; however, the difference was not signifi cant because of the massive growth of Streptomyces species in the biofi lter’s media which contaminated the outcoming air. In conclusion, the applied biofi lter proved to be effective in the elimination of potentially pathogenic bacteria, dust and endotoxin from the air of the hatchery. The effi cacy of the biofi lter could be improved by the inhibition of the Streptomyces growth in the media of the biofi lter.
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2007, 14, 1
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Pest risk analysis on Xylella fastidiosa in Morocco
    Autorzy:
    Afechtal, M.
    Vicent, A.
    Saponari, M.
    D’Onghia, A.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/65631.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    pest
    risk analysis
    plant pathogen
    Xylella fastidiosa
    Gram-negative bacterium
    Morocco
    Opis:
    Morocco is basically an agricultural country; almost 40% of the workforce is employed in this sector. Xylella fastidiosa is a xylem-inhabiting pathogen which can infect more than 300 plant species, although most host species are symptomless. Until relatively recently, X. fastidiosa was primarily limited to North and South America, but in 2013 a widespread epidemic of olive quick decline syndrome caused by this fastidious pathogen appeared in southeastern Italy, and later several cases of X. fastidiosa outbreaks have been reported in other European countries (France, Germany and Spain). Following these recently confirmed findings of X. fastidiosa in the European Union, this bacterium has become a serious threat to the Moroccan flora. The national phytosanitary authorities have adopted several measures to prevent the introduction of X. fastidiosa into the national territory by deciding, inter alia, to suspend importation of host plant species to the bacterium from infected areas. This paper presents the phytosanitary risk of this bacterium in Morocco.
    Źródło:
    Journal of Plant Protection Research; 2018, 58, 3
    1427-4345
    Pojawia się w:
    Journal of Plant Protection Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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