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Summary: Biochemical Systematics and Ecology 29 (2001) 551561
Transfer of quinolizidine alkaloids from hosts
to hemiparasites in two CastillejaLupinus
associations: analysis of floral and vegetative
tissues
Lynn S. Adlera,
*, Michael Winkb
a
Center for Population Biology and Department of Entomology, 2320 Storer Hall, Section of Evolution and
Ecology, University of California at Davis, One Shields Avenue, Davis, CA 95616, USA
b
Universitaet Heidelberg, Institut fuer Pharmazeutische Biologie, Im Neuenheimer Feld 364, D-69120
Heidelberg, Germany
Received 26 May 2000; accepted 25 September 2000
Abstract
Many hemiparasites, including several members of the Castilleja genus (Scrophulariaceae),
obtain secondary compounds from their host plants. Both Castilleja miniata in subalpine
Colorado and C. indivisa in central Texas have reduced herbivory when obtaining alkaloids
from the hosts Lupinus argenteus and L. texensis (Fabaceae), respectively. However,
pollinators were not deterred from visiting Castilleja parasitizing alkaloid-containing hosts.
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