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  • Lepidoptera  (4)
  • Springer  (4)
  • American Chemical Society
  • Wiley
  • 1995-1999  (1)
  • 1985-1989  (3)
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  • Springer  (4)
  • American Chemical Society
  • Wiley
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  • 1
    Electronic Resource
    Electronic Resource
    Hickory shuckworm Cydia caryana: electroantennogram and flight tunnel studies of potential sex pheromone components (1987)
    Springer
    Entomologia experimentalis et applicata 44 (1987), S. 23-30 
    Details
    ISSN: 1570-7458
    Keywords: Lepidoptera ; Tortricidae ; Olethreutinae ; Cydia caryana ; sex pheromone ; electroantennogram ; flight tunnel ; behavior
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé Les réponses olfactives antennaires de Cydia caryana, mesurées par électroantennogrammes (EAG), aux alcools et acétates à carbones monounsaturés en positions 12 et 14, ont montré que le système conjugué de double liaison, (E)-8-, (E)-10- du dodecadien-1-ol acétate constitue un composé chimique strutural critique de la phéromone sexuelle de C. caryana. De plus, les acétates: (E)-8-dodecen-1-ol,(Z)-8-dodecen-1-ol,(Z)-9-dodecen-1-ol, et le (Z)-12-tetradecen-1-ol, se sont révélés en AEG comme des composés secondaires de la phéromone. L'étude par AEG de la relation dose-réponse a conduit à l'hypothèse de deux catégories de populations de récepteurs de phéromones. L'analyse comportementale des résponses des papillons mâles dans le tunnel de vol aux composés qui ont provoqués les plus forts AEG, on fait estimer que les acétates (E,E)-8,10-dodécadien-1-ol et (Z)-9-dodecen-1-ol ressemblent (ou sont) les constituants de la phéromone sexuelle de C. caryana; tandis que les (Z)-8-dodecen-1-ol et (E)-10-dodecen-1-ol sont, soit des paraphéromones, soit des constituants mineurs de la phéromone. La signification biologique du (Z)-12-tétradécen-1-ol a été difficile à interprêter avec les expériences en tunnel de vol.
    Notes: Abstract Electroantennogram (EAG) measurement of male Cydia caryana moth antennal olfactory response to monounsaturated 12 and 14 carbon alcohols and acetates indicated that the (E)-8-, (E)-10- conjugated double bond system of a dodecadien-1-ol acetate is a critical chemical structural component of the C. caryana sex pheromone. Additionally, EAG measurements implicated (E)-8-dodecen-1-ol acetate, (Z)-8-dodecen-1-ol acetate, (Z)-9-dodecen-1-ol acetate and (Z)-12-tetradecen-1-ol as potential minor pheromonal components. An EAG dosage-response study suggested that there were at least two heterologous populations of pheromone acceptors. Behavioral analysis of male moth response in a flight tunnel to compounds which evoked the stronger EAG responses suggested that (E,E)-8,10-dodecadien-1-ol acetate and (Z)-9-dodecen-1-ol acetate resemble or are C. caryana sex pheromonal components, while (Z)-8-dodecen-1-ol acetate and (E)-10-dodecen-1-ol acetate are either parapheromones or are minor pheromone components. Behavioral significance of (Z)-12-tetradecen-1-ol was difficult to interpret in the flight tunnel.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00361305
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  • 2
    Electronic Resource
    Electronic Resource
    Identification of the sex attractant pheromone of the southwestern corn borerDiatraea grandiosella Dyar (1986)
    Springer
    Journal of chemical ecology 12 (1986), S. 2051-2063 
    Details
    ISSN: 1573-1561
    Keywords: Southwestern corn borer pheromone ; Diatraea grandiosella Dyar ; Lepidoptera ; Pyralidae ; (Z)-9-hexadecenal ; (Z)-11-hexadecenal ; (Z)-13-octadecenal ; Zea mays L.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract We report the identification of the southwestern corn borer,Diatraea grandiosella Dyar (Lepidoptera: Pyralidae), female sex attractant pheromone as a mixture of (Z)-9-hexadecenal, (Z)-11-hexadecenal, and (Z)-13-octadecenal in the ratio 21.5∶70.6∶7.9. Initially, six 16- and 18-carbon aldehydes includingn-hexadecanal, (Z)-9-octadecenal, (Z)-11-octadecenal, and the three above were isolated from female gland rinses and evaluated as potential pheromone components by GLC-MS and laboratory bioassays. By laboratory flight chamber and field tests, the stated mixture of (Z)-9-hexadecenal, (Z)-11-hexadecenal, and (Z)-13-octadecenal was shown to be as effective as the female for male attraction. Electrophysiological studies confirmed the requirement for these three compounds, but not forn-hexadecanal, (Z)-9-octadecenal, and (Z)-11-octadecenal.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01041996
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  • 3
    Electronic Resource
    Electronic Resource
    Hemicellulose is an important leaf-feeding resistance factor in corn to the fall armyworm (1996)
    Springer
    Journal of chemical ecology 22 (1996), S. 1655-1668 
    Details
    ISSN: 1573-1561
    Keywords: Corn ; Zea mays (L.) ; fall armyworm ; Spodoptera frugiperda (J. E. Smith) ; Lepidoptera ; feeding resistance ; hemicellulose
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The fall armyworm,Spodoptera frugiperda (J. E. Smith), (FAW) is a major pest of corn,Zea mays L., in the southeastern United States. The damage to pretassel corn is caused by larvae feeding primarily on immature inner whorls. In this study, resistant lines were found to contain more crude fiber in whorls, mostly hemicellulose and cellulose. While hemicellulose, chiefly an arabinoxylan, was higher in resistant (R) lines than in susceptible (S) lines, the distribution of constituent neutral sugars was very similar in the lines. Both lines also containedp-coumaric and ferulic acids. These phenolic acids are known to occur both in the free state and in the cell wall as complexes bound by ester linkages to the arabinose moiety of the arabinoxylan.13C NMR data showed that the intensity of the carbonyl carbon (184 ppm) in resistant hemicellulose was stronger, indicating a greater degree of cross-linking. Thus, resistant hemicellulose is both structurally different from susceptible hemicellulose and present in greater quantities. In two of three laboratory dietary tests, FAW larval weight gains were significantly higher on diets with (S) hemicellulose incorporated at the same level as (R) hemicellulose. Therefore, resistance to the FAW appears to be correlated with both a greater amount and a higher degree of cross-linking of the hemicellulose of (R) lines.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02272405
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  • 4
    Electronic Resource
    Electronic Resource
    Blackheaded fireworm: Laboratory and field studies of its sex pheromone (1987)
    Springer
    Journal of chemical ecology 13 (1987), S. 1235-1242 
    Details
    ISSN: 1573-1561
    Keywords: Rhopobota naevana (Hübner) ; Rhopobota unipunctana Haworth ; Rhopobota naevana naevana (Hübner) ; blackheaded fireworm ; Lepidoptera ; Tortricidae ; Olethreutinae ; sex pheromone ; sex attractant ; (Z)-11-tetradecen-1-ol ; (Z)-11-tetradecen-1-ol acetate ; (Z)-9-dodecen-1-ol acetate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Electroantennogram (EAG) responses of maleRhopobota naevana (Hübner), the blackheaded fireworm, to all of the monoene straightchain 12- and 14-carbon alcohols and acetates implicated (Z)-11-tetradecenl-1-ol (Z11–14∶OH) and its acetate (Z11–14∶Ac) as sex pheromone components.Z11–14∶Ac produced the strongest EAG response of all compounds tested. Gas chromatography-mass spectrometry (GC-MS) analysis of extract of female sex pheromone glands (SPG) confirmed the presence ofZ11–14∶OH (125 pg/female) andZ11–14∶Ac (600 pg/female) (all other monoenes had different retention times). In field tests, traps baited withZ11–14∶OH alone captured males, but traps baited withZ11–14∶Ac alone did not. Traps baited with a combination ofZ11–14∶OH andZ11–14∶Ac in various ratios did not produce better trap catches thanZ11–14∶OH alone. (Z)-9-Dodecen-1-ol acetate (Z9–12∶Ac), reported by others to be a field attractant, did not produce trap catch in our tests, but in combination withZ11–14∶ OH (98∶2 in septa corresponding to 95:5 in vapor,Z11–14∶OH toZ9–12∶AC) produced a sevenfold increase in catch overZ11–14∶OH alone. IfZ9–12∶AC had been present in extract of SPG at 2–5% ofZ11–14∶OH, it would not have been detected in our GC-MS experiment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01020551
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