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| Formato: | Artículo científico |
| Lenguaje: | en |
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Instituto de Botánica Darwinion
2006
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| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=66944104 |
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- Alcanos lineales de la cera cuticular de hojas de Populus alba, Populus deltoides (Salicaceae), Robinia pseudoacacia(Fabaceae), Ulmus pumila(Ulmaceae) y Fraxinus Americana (Oleaceae) en Tandil, Buenos Aires, Argentina María L. Bakker Patricia I. Alvarado Biología Ulmus Populus Robinia Fraxinus cuticular wax Mature leaves of adult individuals of Populus alba, Populus deltoides, Robinia pseudoacacia,Ulmus pumila and Fraxinus americana from the University Campus, Tandil, Buenos Aires, Argentina(37° 19S, 59° 08W) were collected on February 2004. The cuticular wax was extracted, purified, andthe content and relative proportion of odd-carbon numbered n-alkanes (C23��C35) was quantified bycapillary gas-liquid chromatography. Total concentration of n-alkanes (mg/kg DM) were P. alba(6935) > Robinia (1571) > P. deltoides (1379) > Ulmus (880) > Fraxinus (467). Most abundant n-alkanesin all species were C27 and C29 accounting for 10-51% and 35-76% of total, respectively, exceptFraxinus where most abundant were C29 and C31 accounting for 31% and 41% of total, respectively.P. alba and P. deltoides differed not only in total concentration of all n-alkanes but also in relative proportionof C27 and C29, being C29 the most abundant in the latter species (76%) as well as in Robinia(75%). The occurrence of even-carbon numbered n-alkanes was either undetectable or very low in allspecies in general, except for C26, C28 and C30, the latter being prominent in Fraxinus. 2006 artículo científico 0011-6793 https://www.redalyc.org/articulo.oa?id=66944104 en http://www.redalyc.org/revista.oa?id=669 Darwiniana application/pdf Instituto de Botánica Darwinion Darwiniana (Argentina) Num.1 Vol.44