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1

Polyphasic characterization of the genus Anabaena from the Gulf of Gdansk (Southern Baltic Sea). Application of DGGE in taxonomic studies on environmental samples

100%
Siedlewicz G., Forycka K., Surosz W.
Oceanological and Hydrobiological Studies
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2012
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tom 41
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nr 3
2
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

16S microbial phylogeny of multifunctional plant-growth-promoting rhizobacteria from the rhizosphere of maize (Zea mays L.) for agricultural soil fortification

100%
Reena J., Jubu T.
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
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2019
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tom 100
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nr 2
3

Identification of bacterial species in white stork chicks in Poland using PCR method and sequencing of bacterial 16SrRNA

100%
Nawrot R., Barylski J., Tomaszewski L., Jerzak L., Gozdzicka-Jozefiak A., Jedrzejewski S., Tryjanowski P.
Polish Journal of Environmental Studies
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2009
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tom 18
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nr 2
301-304
The aim of this study was to identify the most common bacteria that may be found in the blood or on the feathers of white stork (Ciconia ciconia) chicks and predict their pathogenic potential for birds and humans. A variety of microorganisms, which include Staphylococcus aureus, Staphylococcus vitulinus, and Pseudomonas sp. were found. Based on breeding population densities and reproductive success over the past 25 years, we found no apparent effects of bacterial infections on the white stork population in Poland.
4

Isolation of cultivable microorganisms from Polish notes and coins

100%
Kalita M., Palusinska-Szysz M., Turska-Szewczuk A., Wdowiak-Wrobel S., Urbanik-Sypniewska T.
Polish Journal of Microbiology
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2013
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tom 62
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nr 3
The potential role of currency in the spread of pathogenic microflora has been evaluated in many countries. In this study Polish paper notes and the coins in general circulation were assayed for the presence of cultivable bacteria and fungi. Bacterial isolates identification was based on cultural and biochemical characters and by comparison of the 16S rRNA gene sequence. Fungal isolates were recognized with biochemical and morphological criteria. Coagulase-negative staphylococci, (43.6% of the total bacterial count) including Staphylococcus saprophyticus, S. epidermidis, and S. hominis, and Enteroccus spp. (30.8% of the total bacterial count), i.e. E. faecalis, E. faecium and E. durans, were the most numerous bacterial contamination. Penicillium spp., and Aspergillus spp. were the most frequently detected moulds whereas Candida spp. was the most frequent yeast isolated from currency. A visible dependence between the banknote denomination, the physical condition of paper currency, and the number of bacteria and fungi was found. The overall count of bacteria isolated from currency was thousand-fold higher than that of fungal isolates. The total amount of bacteria and fungi recovered from the coins was approximately 2.7-fold lower than that isolated from the notes. In summary, the Polish currency notes were found to be contaminated mainly with commensal bacteria and fungi while the opportunistic pathogenic microorganisms Escherichia coli, Pseudomonas stutzeri and C. albicans were detected at a low frequency.
5
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Morphological, genetic, chemical and ecophysiological characterisation of two Microcystis aeruginosa isolates from the Vistula Lagoon, Southern Baltic

80%
Mazur-Marzec H., Browarczyk-Matusiak G., Forycka K., Kobos J., Plinski M.
Oceanologia
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2010
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tom 52
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nr 1
127-146
The Vistula Lagoon (southern Baltic Sea) is a shallow and highly eutrophic water body, with frequent blooms of cyanobacteria dominated by Microcystis and Anabaena species. Two Microcystis strains, MK10.10 and MAKR0205, isolated from the lagoon were characterised in this work. The morphology of the isolates differed significantly with respect to cell size and their ability to form aggregates. Based on the 16S rRNA sequence and 16S-23S internal transcribed spacer (ITS) sequence, both isolates were classified as Microcystis aeruginosa. However, only one isolate, MK10.10, possessed the mcy genes responsible for microcystin biosynthesis and only this strain produced microcystins. The effects of environmental factors, such as light, temperature and salinity, on toxin production turned out to be minor. Under the culture conditions used in the experiments, the biomass of the toxic MK10.10 was always lower. Hybrid quadrupole-time-of-flight liquid chromatography/tandem mass spectrometry (QTOF-LC/MS/MS) was used to elucidate the structure of the microcystin (MC) variants produced by MK10.10. Based on molecular ion and fragmentation spectra, the toxins were identified as MC-LR, MC-VR and MC- HIlR. Our study confirmed that some morphological criteria could be useful in preliminarily assessing the potential toxicity of a Microcystis bloom.
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