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  • Lepidoptera  (4)
  • Perilla frutescens  (2)
  • Springer  (6)
  • 1995-1999  (6)
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  • 1
    Digitale Medien
    Digitale Medien
    Chemical nature of larval osmeterial secretions of papilionid butterflies in the generaParnassius, Sericinus andPachliopta (1995)
    Springer
    Journal of chemical ecology 21 (1995), S. 859-867 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Osmeterial secretion ; Lepidoptera ; Papilionidae ; Parnassiinae ; Papilioninae ; Parnassius glacialis ; Sericinus montela ; Pachliopta aristolochiae ; aliphatic acid and ester ; monoterpene ; sesquiterpene
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Volatile components of the larval osmeterial secretion ofParnassius glacialis (Parnassiinae, Parnassiini) consisted of isobutyric acid, 2-methylbutyric acid, and their methyl esters. In contrast, the osmeterial exudate ofSericinus montela (Parnassiinae, Zerynthiini) was characterized as monoterpene hydrocarbons comprisingβ-myrcene (Major),α-pinene, sabinene, limonene, andβ-phellandrene, whereas that ofPachliopta aristolochiae (Papilioninae, Troidini) was composed of numerous sesquiterpene hydrocarbons, includingα-himachalene,α-amorphene, and germacrene-A, and a few oxygenated sesquiterpenoids. In these three species, the chemical nature of the secretions of the last and the penultimate instars was essentially of similar quality, suggesting that the three genera,Parnassius, Sericinus, andPachliopta, are assigned to homogeneous types.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02033466
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Male sex pheromone of a giant danaine butterfly,Idea leuconoe (1996)
    Springer
    Journal of chemical ecology 22 (1996), S. 949-972 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Lepidoptera ; Danainae ; Idea leuconoe ; hairpencil ; pheromone ; Parsonsia laevigata ; pyrrolizidine alkaloid ; mellein ; defense
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Males of a giant danaine butterfly,Idea leuconoe, display hairpencils during courtship. The females were visually attracted to and olfactorily arrested by an artificial butterfly model to which male hairpencil extracts were added. The hairpencil extracts contained a complex mixture of volatiles, including pyrrolizidine alkaloid (PA) derivatives (danaidone, viridifloric β-lactone), aromatics (phenol,p-cresol, benzoic acid), terpenoids (geranyl methyl thioether, (E,E)-farnesol), a series of γ-lactones (6-hydroxy-4-undecanolides and its homologs), hydrocarbons [(Z)-9-tricosene, etc.], and several compounds with higher molecular weight. A mixture of the major volatiles applied to a butterfly dummy strongly elicited an abdomen-curling acceptance posture in females. Viridifloric β-lactone and danaidone induced significant electroantennogram responses on the female's antennae, suggesting their principal role together with other hairpencil components as a sex pheromone to seduce females.I. leuconoe males seem to acquire the precursor for both of the PA fragments from the host plant,Parsonsia laevigata (Apocynaceae), during the larval stage; thereby they do not show pharmacophagous behavior towards PA-containing plants during the adult stage. However, males are pharmacophagously attracted to and feed on a number of simple phenolic compounds in a manner similar to other danaine species towards PAs. Wild males sequester one of the phagostimulants, (−)-mellein, in the hairpencils in varying quantities. Phenolic compounds incorporated in the hairpencils may act primarily as warning odors linked with the defensive PAs present in the body tissues.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02029947
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Oviposition Stimulants for Sulfur ButterflyColias erate poliographys: Cyanoglucosides as Synergistis Involved in Host Preference (1997)
    Springer
    Journal of chemical ecology 23 (1997), S. 323-331 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Oviposition stimulants ; Colias erate ; Lepidoptera ; Pieridae ; Trifolium repens ; Leguminosae ; cyanoglucosides ; linamarin ; lotaustralin
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Host-plant chemicals stimulating oviposition by a Leguminosae-feeding pierid butterflyColias erate poliographyswere isolated and identified from one of its primary host plants, white clover (Trifolium repens). Females readily deposited eggs in response to methanolic extracts of the plant, and subsequent partition of the extracts with organic solvents revealed that chemical constituents critical for host recognition reside in the water-soluble fraction. Further fractionation of the hydrosoluble fraction by column chromatography led to the separation of an active fraction and two cyanoglucosides, linamarin and lotaustralin. Conspicuous oviposition response was evoked by unidentified polar compound(s), while these cyanoglucosides exerted no stimulatory activity by themselves. However, ovipositing females preferred samples containing either of the two cyanoglucosides. In dual-choice bioassays, significantly more eggs were laid on samples admixed with the cyanoglucosides, suggesting that the cyanoglucosides serve as synergistic oviposition stimulants and could play an important role in host selection.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/B:JOEC.0000006362.96722.c9
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Pyrrolizidine Alkaloids Mediate Host-Plant Recognition by Ovipositing Females of an Old World Danaid Butterfly, Idea leuconoe (1997)
    Springer
    Journal of chemical ecology 23 (1997), S. 1703-1713 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Oviposition stimulants ; Idea leuconoe ; Lepidoptera ; Danaidae ; Parsonsia laevigata ; Apocynaceae ; pyrrolizidine alkaloids ; parsonsianine ; parsonsianidine ; 17-methylparsonsianidine
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract A giant danaid butterfly, Idea leuconoe, specializes on apocynaceous plants such as Parsonsia laevigata, which has been reported to contain pyrrolizidine alkaloids. Females of I. leuconoe deposited eggs in response to methanolic extract of P. laevigata, and subsequent bioassay-guided fractionation of the extract revealed that phytochemicals crucial for host recognition by ovipositing females are Parsonsia-specific macrocyclic pyrrolizidine alkaloids including parsonsianine, parsonsianidine, and 17-methylparsonsianidine. Parsonine, another P. laevigata pyrrolizidine component with a keto-dihydropyrrolizine moiety that is closely related in structure to male pheromones of the butterfly, and several nonhost pyrrolizidine alkaloids were entirely inactive. We interpret these data as strong evidence for an ancestral association through herbivory between danaid butterflies and pyrrolizidine alkaloids.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/B:JOEC.0000006445.61545.82
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Digitale Medien
    Digitale Medien
    Genetic analysis of essential oil variants inPerilla frutescens (1995)
    Springer
    Biochemical genetics 33 (1995), S. 341-348 
    Details
    ISSN: 1573-4927
    Schlagwort(e): Perilla frutescens ; Labiatae ; chemotypes ; genetic analysis ; essential oils
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract A new chemotype (C type) ofPerilla frutescens (Labiatae) that accumulatestrans-citral as a main component of the essential oil in the leaf was crossed with five other chemotypes containing perillaldehyde (PA), elsholtziaketone (EK), perillaketone (PK), perillene (PL), and phenylpropanoid (PP) as their respective major components for comparison of genetic differences. The analyses of F1 and F2 progenies showed thattrans-citral is accumulated when its metabolism is blocked in the simultaneous absence of a dominant geneN, which is involved in the conversion oftrans-citral into naginataketone viacis-citral, and two polymeric genesFr 1 andFr 2 , which are involved in the conversion oftrans-citral into perillene. On the basis of new data obtained from various intercrosses involving the C type as one of the parents, the genotypes of different chemotypes as well as the sites of action of several genes controlling reaction steps in the biosynthesis of monoterpenes inPerilla have been revised.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00553813
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    Digitale Medien
    Digitale Medien
    Genetic analysis of essential oil variants inPerilla frutescens (1995)
    Springer
    Biochemical genetics 33 (1995), S. 341-348 
    Details
    ISSN: 1573-4927
    Schlagwort(e): Perilla frutescens ; Labiatae ; chemotypes ; genetic analysis ; essential oils
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract A new chemotype (C type) ofPerilla frutescens (Labiatae) that accumulatestrans-citral as a main component of the essential oil in the leaf was crossed with five other chemotypes containing perillaldehyde (PA), elsholtziaketone (EK), perillaketone (PK), perillene (PL), and phenylpropanoid (PP) as their respective major components for comparison of genetic differences. The analyses of F1 and F2 progenies showed thattrans-citral is accumulated when its metabolism is blocked in the simultaneous absence of a dominant geneN, which is involved in the conversion oftrans-citral into naginataketone viacis-citral, and two polymeric genesFr 1 andFr 2 , which are involved in the conversion oftrans-citral into perillene. On the basis of new data obtained from various intercrosses involving the C type as one of the parents, the genotypes of different chemotypes as well as the sites of action of several genes controlling reaction steps in the biosynthesis of monoterpenes inPerilla have been revised.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02399932
    Standort Signatur Erwartet Verfügbarkeit
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