Comparative alkane chemistry of Parthenium argentatum (guayule) and some F1 hybrids |
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Authors: | Peter Proksch HMohan Behl Eloy Rodriguez |
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Institution: | Phytochemical Laboratory, Department of Ecology and Evolutionary Biology, University of California, Irvine, CA 92717, U.S.A. |
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Abstract: | The leaf alkanes of Parthenium argentatum (guayule), P. tomentosum var. stramonium, P. fruticosum var. trilobatum, and the first filial (F1) generations obtained from crosses with guayule were investigated by GC and mass spectrometry and shown to be useful in chemotaxonomic studies. The identified n-alkanes ranged from C19 to C40 with either n-C29 or n-C31 as the main component. The alkane chemistry of guayule with n-C31 being the main component predominated in most of the F1 hybrids. The presence of iso-branched alkanes (C27, C29, C31) in P. tomentosum and its hybrids could be detected by GC/MS. These preliminary investigations indicate that epicuticular wax alkanes can be useful in inheritance studies of guayule and its hybrids. |
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Keywords: | chemotaxonomy leaf alkanes |
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