Services on Demand
Journal
Article
Indicators
- Cited by SciELO
Related links
- Similars in SciELO
- uBio
Share
Darwiniana, nueva serie
Print version ISSN 0011-6793On-line version ISSN 1850-1699
Abstract
BAKKER, María L. and ALVARADO, Patricia I.. Cuticular wax linear alkanes in leaves of Populus alba, Populus deltoides (Salicaceae), Robinia pseudoacacia (Fabaceae), Ulmus pumila (Ulmaceae) and Fraxinus americana (Oleaceae) from Tandil, Buenos Aires, Argentina. Darwiniana [online]. 2006, vol.44, n.1, pp.58-63. ISSN 0011-6793.
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, and the content and relative proportion of odd-carbon numbered n-alkanes (C23→C35) was quantified by capillary 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-alkanes in all species were C27 and C29 accounting for 10-51% and 35-76% of total, respectively, except Fraxinus 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 proportion of 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 all species in general, except for C26, C28 and C30, the latter being prominent in Fraxinus.
Keywords : Populus; Robinia; Ulmus; Fraxinus; linear alkanes; cuticular wax.