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Wyszukujesz frazę "polyprenols" wg kryterium: Temat

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    Wyświetlanie 1-5 z 5
    Tytuł:
    Light conditions alter accumulation of long chain polyprenols in leaves of trees and shrubs throughout the vegetation season.
    Autorzy:
    Bajda, Agnieszka
    Chojnacki, Tadeusz
    Hertel, Józefina
    Swiezewska, Ewa
    Wójcik, Jacek
    Kaczkowska, Alicja
    Marczewski, Andrzej
    Bojarczuk, Tomasz
    Karolewski, Piotr
    Oleksyn, Jacek
    Powiązania:
    https://bibliotekanauki.pl/articles/1041482.pdf
    Data publikacji:
    2005
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    plant polyprenols
    SLA
    Opis:
    In many plants belonging to angiosperms and gymnosperms the accumulation in leaves of long chain polyprenols and polyprenyl esters during growth in natural habitats depends on the light intensity. The amount of polyprenols in leaves is also positively correlated with the thickness of the leaf blade (SLA, specific leaf area). The polyprenol content of leaves shows seasonal changes with a maximum in autumn and a minimum in early summer with the difference between poorly and well illuminated plants persisting throughout the vegetation season.
    Źródło:
    Acta Biochimica Polonica; 2005, 52, 1; 233-241
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The search for polyprenols in dendroflora of Vietnam
    Autorzy:
    Marczewski, Andrzej
    Ciepichal, Ewa
    Canh, Le
    Bach, Tran
    Swiezewska, Ewa
    Chojnacki, Tadeusz
    Powiązania:
    https://bibliotekanauki.pl/articles/1040857.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    polyprenols
    plant chemotaxonomy
    Opis:
    The occurrence of polyprenols in leaves of over 340 species of dendroflora in natural habitats in the regions of Hanoi and Hue in Vietnam was studied. Plant material was collected in the late autumn (October/November) during the end of a vegetation season. Leaves of about 200 plant species did not contain detectable amounts of polyprenols in contrast to few systematic families, e.g. Moraceae, Euphorbiaceae, where polyprenols were highly abundant and their pattern could be used as a chemotaxonomic criterion. Most often dominating polyprenols were prenol-11 and prenol-12. In several angiosperm species prenol-13 and detectable amounts of prenol-14 were also found. The incidence of prenol-13 and -14 was not restricted to a specific taxonomic group since species exhibiting domination of such longer chain polyprenols belonged to various systematic families. In some plants (e.g. Ceiba pentandra) α-cis polyprenols were accompanied by α-trans counterparts. This report describes several new plant species that may serve as natural sources of long chain polyprenols.
    Źródło:
    Acta Biochimica Polonica; 2007, 54, 4; 727-732
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    In vitro plant tissue cultures accumulate polyisoprenoid alcohols
    Autorzy:
    Skorupinska-Tudek, Karolina
    Pytelewska, Anna
    Zelman-Femiak, Monika
    Mikoszewski, Jakub
    Olszowska, Olga
    Gajdzis-Kuls, Dorota
    Urbanska, Natalia
    Syklowska-Baranek, Katarzyna
    Hertel, Józefina
    Chojnacki, Tadeusz
    Swiezewska, Ewa
    Powiązania:
    https://bibliotekanauki.pl/articles/1040881.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    polyprenols
    HPLC
    dolichols
    isoprenoids
    Opis:
    In vitro cultivated plant cells and tissues were found to synthesize polyisoprenoids. Taxus baccata suspension cell cultures accumulated polyisoprenoids of the same pattern as the parental tissue; methyl jasmonate or chitosan treatment almost doubled their content. All the root cultures studied accumulated dolichols as predominant polyisoprenoids. Roots of Ocimum sanctum grown in vitro accumulated approx. 2.5-fold higher amount of dolichols than the roots of soil-grown plants. Dolichols dominated over polyprenols in all Triticum sp. tissues studied.
    Źródło:
    Acta Biochimica Polonica; 2007, 54, 4; 847-852
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Search for polyprenols in leaves of evergreen and deciduous Ericaceae plants.
    Autorzy:
    Ranjan, Rajiv
    Marczewski, Andrzej
    Chojnacki, Tadeusz
    Hertel, Jozefina
    Swiezewska, Ewa
    Powiązania:
    https://bibliotekanauki.pl/articles/1044157.pdf
    Data publikacji:
    2001
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    Ericaceae
    polyprenols
    senescence
    chemotaxonomy
    Opis:
    Various species and cultivars of Ericaceae family were checked for the presence of long-chain polyprenols in their leaves. In the genus Rhododendron no polyprenols were found in the ever-green species, while they were present in the deciduous type. The polyprenols were of chain-length of 14-20 isoprene residues and they occurred in the form of acetic acid esters. The polyprenol accumulation is discussed with respect to senescence of leaves.
    Źródło:
    Acta Biochimica Polonica; 2001, 48, 2; 579-584
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The occurrence of polyprenols in seeds and leaves of woody plants.
    Autorzy:
    Chouda, Marcin
    Jankowski, Wiesław
    Powiązania:
    https://bibliotekanauki.pl/articles/1041483.pdf
    Data publikacji:
    2005
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    polyprenols
    seed lipids
    dolichols
    leaf lipids
    Opis:
    The contents of the heterogenous group of polyisoprenoids was found about two orders of magnitude lower in seeds than the amount of polyprenols and/or their carboxylic esters accumulated during vegetation season in leaves. In contrast to leaves, no seeds were found containing more than 0.5 mg of these lipids per gram of dry tissue. Almost 50% had less than 0.01 mg/g - the amount which is the limit of detection by the procedure used in this work. In gymnosperms (10 representatives of Cupressaceae, Pinaceae and Taxaceae) the polyprenol spectra in seeds and in needles were similar. In angiosperms (25 representatives of 13 botanical families) the polyisoprenoid mixture in seeds resembled the minor, additional subfamily found in leaves.
    Źródło:
    Acta Biochimica Polonica; 2005, 52, 1; 243-253
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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