title: (+)-2,3-dehydro-10-oxo-alpha-isosparteine in Uresiphita reversalis larvae fed on Cytisus monspessulanus leaves.
abstract: Quinolizidine alkaloids, found in the leaves of Cytisus monspessulanus L. (Leguminosae), were characterized in the cuticle of larvae of the pyralid moth Uresiphita reversalis (Lepidoptera: Pyralidae) when the latter were fed on this weed. By GC-MS analysis of the methanolic extracts of the cuticle, four quinolizidine alkaloids, N-methylcytisine, cytisine, aphylline and anagyrine, were identified as possible defense substances. In addition, the quinolizidine alkaloid, (+)-2,3-dehydro-10-oxo-alpha-isosparteine was characterized in both the insect and host plant.
authors.affiliation: Department of Environmental Science, Policy and Management, University of California, Berkeley, CA 94720-3112, USA.
authors.forename: Ken-ichi
authors.initials: K
authors.lastname: Nihei
authors.forename: Kozo
authors.initials: K
authors.lastname: Shibata
authors.forename: Isao
authors.initials: I
authors.lastname: Kubo
mesh_terms: D000818:Animals; D029865:Cytisus / Q000737:chemistry* / Q000378:metabolism; D004032:Diet; D004435:Eating; D008401:Gas Chromatography-Mass Spectrometry; D006790:Host-Parasite Interactions; D007814:Larva / Q000737:chemistry* / Q000502:physiology*; D015394:Molecular Structure; D009036:Moths / Q000737:chemistry* / Q000502:physiology; D018515:Plant Leaves / Q000737:chemistry* / Q000378:metabolism; D011714:Pyrans / Q000737:chemistry* / Q000302:isolation & purification*; D011807:Quinolizines / Q000737:chemistry / Q000302:isolation & purification*; D013343:Styrenes / Q000737:chemistry* / Q000302:isolation & purification*
chemical_list: C473728:2,5-2-methoxy-4-oxo-6-phenyl-hexa-2,5-dienoic acid methyl ester; C473727:3,4-dimethoxy-6-styryl-pyran-2-one; D011714:Pyrans; D011807:Quinolizines; D013343:Styrenes