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On the specific pattern of long chain polyprenols in green needles of Pinus mugo Turra

100%
Kazimierczak B., Hertel J., Świeżewska E., Chojnacki T., Marczewski A.
Acta Biochimica Polonica
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1997
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vol. 44
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issue 4
803-808
2
Content available remote

Search for polyprenols in leaves of evergreen and deciduous Ericaceae plants.

100%
Ranjan R., Marczewski A., Chojnacki T., Hertel J., Swiezewska E.
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2001
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vol. 48
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issue 2
579-584
EN
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.
3
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The search for polyprenols in dendroflora of Vietnam

86%
Marczewski A., Ciepichal E., Canh L. X., Bach T. T., Swiezewska E., Chojnacki T.
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2007
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vol. 54
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issue 4
727-732
EN
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.
4
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Light conditions alter accumulation of long chain polyprenols in leaves of trees and shrubs throughout the vegetation season.

73%
Bajda A., Chojnacki T., Hertel J., Swiezewska E., Wójcik J., Kaczkowska A., Marczewski A., Bojarczuk T., Karolewski P., Oleksyn J.
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2005
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vol. 52
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issue 1
233-241
EN
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.
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