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1986 (1)
1984 (1)
1Author    PatrickK. Rollm Ann, C. Lau D Ia Eich, P. Au, L-G Erh Ard, G. Ü. LzRequires cookie*
 Title    Epicuticular Waxes of Seed Coats from Species of the Genus Cistus L. (Cistaceae)  
 Abstract    Epicuticular waxes were extracted with hexane from seed coats o f 16 species from the genus Cistus (Cistaceae) in amounts corresponding to an average o f 0.07% per dry weight. All cuticular waxes obtained from the various Cistus species consisted o f hydrocarbons, wax esters, triterpenol esters, aldehydes, primary alcohols and free fatty acids. These com pounds were present as homologues in changing patterns. In addition two unidentified acids and two unknown alcohols were found. Epicuticular waxes from seed coats differed qualitatively and quantitatively from those o f Cistus leaves and petals and confirmed the existence o f organ sp ecific com positions o f epicuticular waxes. The wax com ponents secreted in this com position result in a cover which in scanning electron microscopic pictures resembles a sm ooth layer o f solidified fluid lacking any crystalline structure. 
  Reference    Z. Naturforsch. 39c, 521 (1984); received February 6 1984 
  Published    1984 
  Keywords    Cistus, Epicuticular Waxes, Seed Coats, Fluid Surface Layer, Scanning Electron M icroscopy 
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 TEI-XML for    default:Reihe_C/39/ZNC-1984-39c-0521.pdf 
 Identifier    ZNC-1984-39c-0521 
 Volume    39 
2Author    H. Erbert, HemM. Ers, Paul-G Erhard Gülz, Kurt HängstRequires cookie*
 Title    Chemistry and Morphology of Epicuticular Waxes from Leaves of Five Euphorbia Species  
 Abstract    The surface w axes o f five E uphorbia species (E uphorbiaceae) were studied by chemical m ethods and by scanning electron microscopy. The yields o f epicuticular waxes, expressed as percentages o f the dry w eights, differed from species to species. Q ualitatively the five species showed the same wax com position but differences appeared in the am ounts o f single wax com po­ nents and in their distribution patterns. The predom inance o f mainly saturated and long chained com ponents as w ell as the high amounts o f primary alcohols and triterpenols resulted in crystalline wax layers. The com parable chemical wax com position o f all five species resulted in a quite similar morphological appearance o f wax crystals. 
  Reference    Z. Naturforsch. 41c, 521 (1986); received D ecem ber 2 1985/February 17 1986 
  Published    1986 
  Keywords    E uphorbia, Leaves, Epicuticular W ax, Wax Chem istry, Wax M orphology, Scanning Electron M icroscopy 
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 TEI-XML for    default:Reihe_C/41/ZNC-1986-41c-0521.pdf 
 Identifier    ZNC-1986-41c-0521 
 Volume    41