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  • Olethreutinae  (3)
  • maize
  • Springer  (6)
  • 1990-1994  (2)
  • 1985-1989  (4)
  • 1955-1959
Collection
Keywords
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  • Springer  (6)
Years
  • 1990-1994  (2)
  • 1985-1989  (4)
  • 1955-1959
  • 1980-1984  (1)
Year
  • 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
    Sequence analysis of three fragments of maize nuclear DNA which replicate autonomously in yeast (1988)
    Springer
    Plant molecular biology 11 (1988), S. 173-182 
    Details
    ISSN: 1573-5028
    Keywords: ARS ; maize ; DNA sequence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract There maize nuclear DNA fragments were isolated on the basis of their ability to confer replication on chimeric plasmids in yeast. These Eco RI fragments of 2.5, 2.8 and 5.5 kb are repeated elements within the maize genome. The 2.5 and 2.8 kb fragments represent a family of elements repeated 11 000 times in the maize haploid genome, while the 5.5 kb fragment is part of another family of 28 000 elements. These fragments were subcloned to further define the unique region of ARS activity. The sequence of each 550–650 bp ARS subclone is reported here, and compared to the flanking regions which do not show ARS activity. The ARS elements are 65–70% A+T as compared to 50–55% for the maize genome as a whole. There is approximately 15% sequence divergence, as well as variation of ARS efficiency, among family members. ARS subclones contain the proposed yeast consensus sequence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00015669
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  • 3
    Electronic Resource
    Electronic Resource
    Genomic organization of two families of highly repeated nuclear DNA sequences of maize selected for autonomous replicating activity in yeast (1988)
    Springer
    Plant molecular biology 11 (1988), S. 161-172 
    Details
    ISSN: 1573-5028
    Keywords: ars ; genome organization ; maize ; repeated DNA ; replication
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Maize nuclear DNA sequences capable of promoting the autonomous replication of plasmids in yeast were isolated by ligating Eco RI-digested fragments into yeast vectors unable to replicate autonomously. Three such autonomously replicating sequences (ARS), representing two families of highly repeated sequences within the maize genome, were isolated and characterized. Each repetitive family shows hybridization patterns on a Southern blot characteristic of a dispersed sequence. Unlike most repetitive sequences in maize, both ARS families have a constant copy number and characteristic genomic hybridization pattern in the inbred lines examined. Larger genome clones with sequence homology to the ARS-containing elements were selected from a lambda library of maize genomic DNA. There was typically only one copy of an ARS-homologous sequence on each 12–15 kb genomic fragment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00015668
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  • 4
    Electronic Resource
    Electronic Resource
    Sex pheromone of hickory shuckwormCydia caryana Development of an effective field Lure (1990)
    Springer
    Journal of chemical ecology 16 (1990), S. 317-324 
    Details
    ISSN: 1573-1561
    Keywords: Sex pheromone ; sex attractant ; Cydia caryana ; Lepidoptera ; Tortricidae ; Olethreutinae ; (Z)-8-dodecen-1-ol acetate ; (E)-9-dodecen-1-ol acetate ; dodecanol acetate ; (E, E)-8 ; 10-dodecadien-1-ol acetate ; (E, Z)-8,10-dodecadien-1-ol acetate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Extracts of the sex pheromone glands of femaleCydia caryana were evaluated by electroantennography and gas chromatography-mass spectrometry. These studies suggested the following compounds were potential sex pheromone components: (Z)-8- and/or (E)-9-dodecenyl acetate (50 pg/female), dodecyl acetate (40 pg/female), and (E, E)-8,10-dodecadienyl acetate (25 pg/female). In field tests only the diene produced trap catch, and when the other components were added to the diene, trap catch was not increased. When the diene was formulated in red natural rubber septa, only transient and low catches were obtained, but when gray halobutyl isoprene elastomeric septa were used, high and consistent catches were obtained for eight weeks. Catches depended on the ratio of (E, E)-8,10 to (E, Z)-8,10 isomers. High catches were obtained for anEE toEZ ratio of 100 ∶ 0.6, and insignificant catches were obtained when the ratio was 100 ∶ 3. Equivalent catches were obtained for dosages of 50, 100, and 200 μg/septum.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01021767
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  • 5
    Electronic Resource
    Electronic Resource
    Mid-parent heterosis and combining ability of European corn borer resistance in maize (1993)
    Springer
    Euphytica 72 (1993), S. 65-72 
    Details
    ISSN: 1573-5060
    Keywords: diallel analysis ; host plant resistance ; Ostrinia nubilalis ; plant breeding ; Zea mays ; maize ; European corn borer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Success in breeding maize resistant to the European corn borer has been limited, with the exception of leaf feeding resistance. The inheritance of resistance to leaf, sheath-collar and ear damage in four maize germplasms and their six F1 crosses was evaluated by diallel analysis. Plants in a completely randomized design were artificially infested at the whorl, anthesis or full silk stage of plant development and were evaluated in the field for insect damage. A damage index based on size, number and location of lesions was calculated for each stage. Stowell's Evergreen (susceptible) had a mean damage index three to six times that of Maiz Amargo (resistant) at the whorl stage and the progeny plants were more resistant than the susceptible parent. Maiz Amargo and its crosses had significantly lower mean indices than Stowell's Evergreen for sheath-collar damage in Year 1 but not Year 2. Zapalote Chico, Maiz Amargo and their cross were significantly less damaged than other genotypes at the full silk stage. Heterosis values indicated an increase in resistance of crosses over the midparent average at all three stages of development. General combining ability (GCA) was highly significant for all types of damage, but specific combining ability was significant only for leaf damage. Based on estimates of GCA, Maiz Amargo was the best source of resistance to leaf and sheath-collar damage and both Zapalote Chico and Maiz Amargo would be good parents for ear damage resistance. Results suggest that resistance at different plant development stages can be combined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00023774
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  • 6
    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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