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    Wyświetlanie 1-5 z 5
    Tytuł:
    Miscanthus: inter- and intraspecific genome size variation among M. xgiganteus, M. sinensis, M. sacchariflorus accessions
    Autorzy:
    Cichorz, S.
    Goska, M.
    Rewers, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/19736.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Opis:
    Since M. sinensis Anderss., M. sacchariflorus (Maxim.) Hack. and M. ×giganteus J.M.Greef & Deuter ex Hodk. and Renvoize have considerably the highest potential for biomass production among Miscanthus Anderss. species, there is an urgent need to broaden the knowledge about cytological characteristics required for their improvement. In this study our objectives were to assess the genome size variation among eighteen Miscanthus accessions, as well as estimation of the monoploid genome size (2C and Cx) of the M. sinensis cultivars, which have not been analyzed yet. The characterization of three Miscanthus species was performed with the use of flow cytometry and analysis of the stomatal length. The triploid (2n = 3x = 57) M. sinensis 'Goliath' and M. ×giganteus clones possessed the highest 2C DNA content (8.34 pg and 7.43 pg, respectively). The intermediate 2C-values were found in the nuclei of the diploid (2n = 2x = 38) M. sinensis accessions (5.52–5.72 pg), whereas they were the lowest in the diploid (2n = 2x = 38) M. sacchariflorus ecotypes (4.58–4.59 pg). The presented study revealed interspecific variation of nuclear DNA content (P<0.01) and therefore allowed for recognition of particular taxa, inter- and intraspecific hybrids and prediction of potential parental components. Moreover, intraspecific genome size variation (P<0.01) was observed in M. sinensis cultivars at 3.62%. The values of the stomatal size obtained for the triploid M. ×giganteus 'Great Britain' (mean 30.70 μm) or 'Canada' (mean 29.67 μm) and diploid M. sinensis 'Graziella' (mean 29.96 μm) did not differ significantly, therefore this parameter is not recommended for ploidy estimation.
    Źródło:
    Acta Biologica Cracoviensia. Series Botanica; 2015, 57, 1
    0001-5296
    Pojawia się w:
    Acta Biologica Cracoviensia. Series Botanica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Encapsulation-dehydration technique for chrysanthemum “Lady Orange” cryopreservation
    Autorzy:
    Kulus, D.
    Rewers, M.
    Mikula, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/951265.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    ornamental plant
    chrysanthemum
    plant material
    horticultural production
    somaclonal variation
    cryopreservation
    long-term storage
    encapsulation-dehydration method
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2015, 96, 1
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Micropropagation of Eryngium campestre L. via shoot culture provides valuable uniform plant material with enhanced content of phenolic acids and antimicrobial activity
    Autorzy:
    Kikowska, M.
    Thiem, B.
    Sliwinska, E.
    Rewers, M.
    Kowalczyk, M.
    Stochmal, A.
    Dlugaszewska, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/19447.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Opis:
    An efficient micropropagation protocol for production of genetically uniform clones of Eryngium campestre L. was developed. To determine the effect of nutritional and hormonal factors on shoot and root development and bioactive compounds production, three variants of media differing in the content of macro- and micronutrients, as well as plant growth regulators of various types and concentrations were tested. The highest regeneration (100%), with over 13 shoots per explant, was induced on Murashige and Skoog (MS) medium with 1.0 mg lˉ¹ benzyladenine (BA) and 0.1 mg lˉ¹ indole-3-acetic acid (IAA). The in vitro derived shoots multiplied through axillary bud formation were rooted and transferred to an experimental plot with 78% frequency of survival. Flow cytometry showed no variation in nuclear DNA between the seedlings and micropropagated plants. Preliminary thin layer chromatography (TLC) analysis indicated that phenolic acids, saponins, flavonoids and acetylenes were present in plant biomass. Ultra high performance liquid chromatography (UHPLC) analysis revealed that shoots and roots from in vitro derived plants and root cultures maintained the ability to produce rosmarinic acid (RA), rosmarinic acid hexoside (RA-HEX) and chlorogenic acid (CGA). The highest phenolic acid content was detected in roots of in vitro regenerated plants. The extract from those roots expressed the highest inhibitory effect against bacteria Staphylococcus aureus, as well as dermatophytes Trichophyton mentagrophytes and T. rubrum.
    Źródło:
    Acta Biologica Cracoviensia. Series Botanica; 2016, 58, 1
    0001-5296
    Pojawia się w:
    Acta Biologica Cracoviensia. Series Botanica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Applications Use Standardized Work Purpose of Increase the Production Capacity – a Case Study
    Autorzy:
    Rewers, P.
    Mandziuk, M
    Trojanowska, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/409423.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
    Tematy:
    Training Within Industry
    standardized work
    Opis:
    The article presents the results of research carried out in the company of the foundry industry. Actions taken in the company were to analyze the losses occurring at selected positions and the implementation of standardized work procedures to improving the production process. Describes the state of the current position and manner of operations by the employee, taking into account the distances driven during the execution of the various treatments. The article presents the objectives of the program TWI (Training Within Industry), with special emphasis of the program on the improvement of working methods (MP). The proposed solutions are designed to improve working conditions in the enterprise, and shortening the distances that overcomes the operator also contributes to increased safety. The main effect introduced in the enterprise improvement activities is to increase employee productivity by reducing the execution time of repeated treatments with the introduction of standardized work rules.
    Źródło:
    Research in Logistics & Production; 2015, 5, 2; 191-200
    2083-4942
    2083-4950
    Pojawia się w:
    Research in Logistics & Production
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Geofizyczne rozpoznanie zasięgu kry jurajskiej w Gołaszynie k. Łukowa
    Geophysical investigation of spatial distribution of the Jurassic raft in Gołaszyn near Łuków, E Poland
    Autorzy:
    Mendecki, M.
    Świder, M.
    Nowaczyńska, I.
    Mamak, A.
    Odrobińska, J.
    Piotrowska, P.
    Rewers, J.
    Tymińska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2075797.pdf
    Data publikacji:
    2018
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    kra jurajska
    czarny muł
    rezystywność elektryczna
    Łuków
    Gołaszyn
    rezerwat przyrody
    Jurassic raft
    black silt
    electrical resistivity imaging
    Kra Jurajska nature reserve
    Opis:
    The paper deals with the study of the Middle Jurassic clays near the town of Łuków, to identify its position, depth and thickness defined using geoelectrical techniques. The electrical properties of the ground were determined by a non-invasive 2D Resistivity Imaging Method which involves the investigation of the distribution of resistivity in the ground in X and Z direction. The measurements were carried out on four survey profiles that allowed to distinguish the horizontal and vertical extent of the Jurassic raft. It is not regular, but represents a more complicated structure. The values of resistivity, identified with the Jurassic clays, were very low and reached about 1-20 Q,m, which allowed interpreting, on each resistivity cross-section, its thickness changing from a few metres up to tens of metres.
    Źródło:
    Przegląd Geologiczny; 2018, 66, 1; 48--54
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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