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    Wyświetlanie 1-3 z 3
    Tytuł:
    Plant long-chain polyprenols as chemotaxonomic markers
    Autorzy:
    Roslinska, M
    Walinska, K.
    Swiezewska, E.
    Chojnacki, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/41540.pdf
    Data publikacji:
    2002
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    Magnoliaceae
    long-chain polyprenol
    chemotaxonomy
    Tiliaceae
    Lauraceae
    leaf
    plant
    Opis:
    The occurrence of long-chain polyprenols in leaves of plants of Lauraceae, Tiliaceae and Magnoliaceae families was studied. Separation of groups of polyprenols differing in the size of molecules was performed by thin-layer chromatography. In all studied species long-chain polyprenols were detected. The total polyprenol content in leaves reached values as high as 3% of their dry weight. In the studied species belonging to Lauraceae family a fraction of polyprenols composed of 10-14 isoprene units was present. In species of Tiliaceae and Magnoliaceae polyprenols composed of 9-12 and 10-12 isoprene units were present, respectively. Differences in polyprenol profile characteristic for each family studied were observed. These results were confirmed by HPLC. The structure of these polyprenols was examined by NMR spectrometry and in representative species studied polyprenols exibited the typical poly-cis structure. The effect of insolation on the rate of accumulation of polyprenols was documented.
    Źródło:
    Dendrobiology; 2002, 47
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of salt stress on prenol lipids in the leaves of Tilia 'Euchlora'
    Autorzy:
    Baczewska, A.H.
    Dmuchowski, W.
    Jozwiak, A.
    Gozdowski, D.
    Bragoszewska, P.
    Dabrowski, P.
    Swiezewska, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/41706.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Instytut Dendrologii PAN
    Tematy:
    salt stress
    plant stress
    polyprenol
    leaf
    Tilia
    urban tree
    linden zob.lime
    lime
    Opis:
    Soil contamination caused by the NaCl used to de-ice slippery roads in winter is now recognized as one of the major causes of nutrient disorders and death in urban trees. It is believed that polyisoprenoids may have a specific role in the adaptation of plants to adverse conditions and habitats; it is further believed that in the cell, they may exhibit a protective effect in response to biotic and abiotic stress. The aim of this study was to evaluate the effect of salt stress on the content of prenol lipids in the leaves of Crimean linden (Tilia ‘Euchlora’). The Cl content in the slightly damaged (“healthy”) leaves averaged 0.96%, while that in the heavily damaged (“sick”) leaves averaged 2.02%. The leaves of control trees contained on average 0.57% Cl. The Na contents in the healthy and damaged leaves were 208 mg/kg and 1038 mg/kg, respectively, and the Na content in the control areas was 63 mg/kg. A mixture of polyprenols consisting of four compounds, prenol-9, prenol-10, prenol-11 and prenol-12, was identified in the leaves of Crimean linden. This mixture was dominated by prenol-10 (2.16–6.90 mg/g). The polyprenol content was highest in the leaves of “healthy” trees (approximately 13.31 mg/g), was lower in the case of “sick” trees (approximately 9.18 mg/g), and was the lowest in the control trees (mean 4.71 mg/g). No changes were observed in the composition of the mixture of polyprenols under these conditions. The results suggest that polyprenols may affect the accumulation of Cl in leaves. This phenomenon is evidenced by the high content of prenols in the leaves of trees considered “healthy” but growing under conditions of increased soil salinity and the lower content of prenols in the leaves of the “sick” and control trees. It is advisable to further investigate the role of prenol lipids in the leaves of trees subjected to salt stress
    Źródło:
    Dendrobiology; 2014, 72
    1641-1307
    Pojawia się w:
    Dendrobiology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Oxidation of short-chain isoprenoids
    Autorzy:
    Siedlecka, J.
    Sosinska, E.
    Kania, M.
    Kaczorowska, E.
    Cmoch, P.
    Masnyk, M.
    Lozinska, I.
    Derewiaka, D.
    Obiedzinski, M.
    Czarnocki, Z.
    Danikiewicz, W.
    Swiezewska, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/80737.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    isoprenoid
    short-chain isoprenoid
    molecular structure
    oxidation
    reactive oxygen species
    ultraviolet light
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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