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1Author    A. Ntonio, F. M. Oliveira, Antonio SalatinoRequires cookie*
 Title    Major Constituents of the Foliar Epicuticular Waxes of Species from the Caatinga and Cerrado  
 Abstract    The epicuticular waxes of leaves of four species (Aspidospermci pyrifolium, Capparis yco, Maytenus rigida and Ziziphus joazeiro) from the Caatinga, (a semi-arid ecosystem of N orth­ east Brazil) and four species (Aristolochia esperanzae, Didymopanax vinosum , Strychnos pseudoquina and Tocoyena formosa) from the Cerrado, (a savanna ecosystem covering one third of the Brazilian territory), were analyzed. Six species contained a high content (above 60 (.ig.cm-2) of wax, four of them from the Caatinga. Triterpenoids and rc-alkanes were the most frequent and abundant constituents found in the species from both habitats. The distri­ bution of «-alkanes predom inated by homologues with 27, 29, 31 and 33 carbon atoms, dis­ played no consistent differences between species from the two habitats. Lupeol, ß-amyrin, epifriedelinol and ursolic acid were the triterpenoids found. Triterpenoids clearly predomi­ nate over alkanes in the waxes from the Cerrado species. The waxes of two evergreen species from the Caatinga yielded «-alkanes as predominant constituents. A comparison of foliar epicuticular waxes of native plants from ecosystems with different hydric constraints is dis­ cussed. 
  Reference    Z. Naturforsch. 55c, 688—692 (2000); received March 16/May 8. 2000 
  Published    2000 
  Keywords    Caatinga, Cerrado, Epicuticular Wax 
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 TEI-XML for    default:Reihe_C/55/ZNC-2000-55c-0688.pdf 
 Identifier    ZNC-2000-55c-0688 
 Volume    55