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  • Lepidoptera  (5)
  • Biochemistry and Biotechnology  (4)
  • 1995-1999  (9)
  • 1
    Electronic Resource
    Electronic Resource
    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
    Keywords: Oviposition stimulants ; Colias erate ; Lepidoptera ; Pieridae ; Trifolium repens ; Leguminosae ; cyanoglucosides ; linamarin ; lotaustralin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: 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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/B:JOEC.0000006362.96722.c9
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  • 2
    Electronic Resource
    Electronic Resource
    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
    Keywords: Oviposition stimulants ; Idea leuconoe ; Lepidoptera ; Danaidae ; Parsonsia laevigata ; Apocynaceae ; pyrrolizidine alkaloids ; parsonsianine ; parsonsianidine ; 17-methylparsonsianidine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: 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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/B:JOEC.0000006445.61545.82
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  • 3
    Electronic Resource
    Electronic Resource
    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
    Keywords: Osmeterial secretion ; Lepidoptera ; Papilionidae ; Parnassiinae ; Papilioninae ; Parnassius glacialis ; Sericinus montela ; Pachliopta aristolochiae ; aliphatic acid and ester ; monoterpene ; sesquiterpene
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: 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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02033466
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  • 4
    Electronic Resource
    Electronic Resource
    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
    Keywords: Lepidoptera ; Danainae ; Idea leuconoe ; hairpencil ; pheromone ; Parsonsia laevigata ; pyrrolizidine alkaloid ; mellein ; defense
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: 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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02029947
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  • 5
    Electronic Resource
    Electronic Resource
    Separation of disaccharides by affinity capillary electrophoresis in lectin-containing electrophoretic solutions (1998)
    Weinheim : Wiley-Blackwell
    Electrophoresis 19 (1998), S. 2645-2649 
    Details
    ISSN: 0173-0835
    Keywords: Affinity capillary electrophoresis ; Simple disaccharides ; 1-Phenyl-3-methyl-5-pyrazolone derivatives ; Lectins ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Separation of the 1-phenyl-3-methyl-5-pyrazolone (PMP) derivatives of simple disaccharides (maltose, cellobiose, gentiobiose, lactose, and melibiose) by affinity capillary electrophoresis was investigated using lectin-containing neutral phosphate buffers, filled in a linear polyacrylamide-coated capillary. When Lens culinaris agglutinin (LCA) was added, the derivatives of glucobioses were retarded with varying magnitudes depending on the amount of LCA and were well separated from each other and from galactosyl glucose under optimized conditions. Addition of Ricinus communis 60 kDa agglutinin (RCA60) to the phosphate buffer gave a different migration profile, in which the derivatives of galactosyl glucoses were more retarded than those of glucobioses. However, addition of either lectin did not accomplish complete separation of the derivatives of all these disaccharides even under optimum conditions. The addition of two kinds of lectins in appropriate proportions improved separation. Thus, the binary system composed of LCA and RCA60, as well as LCA and soybean agglutinin from Glycine max (SBA), gave better separation of these derivatives, giving peak tops for all derivatives.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/elps.1150191513
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  • 6
    Electronic Resource
    Electronic Resource
    A tabulated review of capillary electrophoresis of carbohydrates (1998)
    Weinheim : Wiley-Blackwell
    Electrophoresis 19 (1998), S. 2539-2560 
    Details
    ISSN: 0173-0835
    Keywords: Capillary electrophoresis ; Simple carbohydrates ; Glycoprotein glycans ; Glycopeptides ; Glycoforms ; Glycolipids ; Glycosaminoglycans ; Review ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: This review summarizes publications on capillary electrophoresis (CE) of carbohydrates, covering almost all hitherto published papers on this topic. It is designed to be a convenient tool for the literature search by providing a comprehensive table. Since CE analysis of carbohydrates is generally complicated due to the structural diversity of carbohydrate species, an attempt is made in this table to supply detailed information on the analyzed form (underivatized or derivatized, type of derivative) and analytical conditions (capillary size, state of the inner wall, composition of the electrophoretic solution, applied voltage, detection method, etc.), for each combination of carbohydrate species to be analyzed. In addition, a brief overview is presented to help in the literature search.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/elps.1150191503
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  • 7
    Electronic Resource
    Electronic Resource
    Editorial (1998)
    Weinheim : Wiley-Blackwell
    Electrophoresis 19 (1998), S. i 
    Details
    ISSN: 0173-0835
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/elps.1150191502
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  • 8
    Electronic Resource
    Electronic Resource
    Separation of 1-phenyl-3-methyl-5-pyrazolone derivatives of monosaccharides by capillary electrochromatography (1998)
    Weinheim : Wiley-Blackwell
    Electrophoresis 19 (1998), S. 2682-2688 
    Details
    ISSN: 0173-0835
    Keywords: Capillary electrochromatography ; 1-phenyl-3-methyl-5-pyra-zolone ; Electroosmotic flow ; Monosaccharides ; Hypersil ODS ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: 1-Phenyl-3-methyl-5-pyrazolone (PMP) derivatives of component monosaccharides in glycoproteins (fucose, galactose, mannose, N-acetylgalactosamine and N-acetylglucosamine) and epimeric aldopentoses (arabinose, lyxose, ribose and xylose) were well separated from each other by capillary electrochromatography on a Hypersil ODS column with a mixture of 50 mM N-(2-hydroxyethyl)piperazine-2′-(2-ethanesulfonic acid) buffer, pH 6.0 to ∼ 6.3, and acetonitrile (2.2:1 v/v) as eluent. The elution of these compounds showed relatively strong dependence on the pH and concentration of the buffer salts contained in the eluent, as compared to the elution by pressure-driven high-performance liquid chromatography (HPLC) on the same stationary phase, but separation of PMP-monosaccharides was better than that by HPLC. Retention times of PMP-monosaccharides were highly reproducible with a relative standard deviation (RSD) of ∼ 0.6%, and quantification with an RSD less than 5% could be achieved using 3-O-methylglucose as an internal standard.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/elps.1150191518
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  • 9
    Electronic Resource
    Electronic Resource
    Chemical basis of differential oviposition by lepidopterous insects (1995)
    New York, NY [u.a.] : Wiley-Blackwell
    Archives of Insect Biochemistry and Physiology 30 (1995), S. 1-23 
    Details
    ISSN: 0739-4462
    Keywords: Lepidoptera ; oviposition ; attractant ; repellent ; stimulant ; deterrent ; host-marking pheromone ; oviposition-deterring pheromone ; Chemistry ; Food Science, Agricultural, Medicinal and Pharmaceutical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: Phytochemical mediators serving as attractants, repellents, stimulants, or deterrents in oviposition behavior of moths and butterflies are reviewed in regard to the chemical mechanism of host selection. Ovipositing females seem generally to utilize plant volatiles as cues for orientation to host plants, and the subsequent contact evaluation of plants by means of less- or non-volatile secondary metabolites is usually of great significance in host recognition. Most lepidopterans appear to be induced to oviposit in response to a single host-specific compound, while extreme synergism of multiple components features the stimulatory system of oviposition enacted by some butterflies. Recent investigations clearly demonstrate that acceptance or rejection of a particular plant by females is regulated not only by the presence or absence of oviposition stimulants but by negative stimuli evoked by co-occurring deterrents. The epideictic pheromones implicated in host assessment by females are also referred to in this review. © 1995 Wiley-Liss, Inc.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/arch.940300102
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