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  • 1
    Electronic Resource
    Electronic Resource
    Effect of Oxygen in Mammalian Cells Sensitized to Radiation by Incorporation of 5-Bromodeoxyuridine into the DNA (1963)
    [s.l.] : Nature Publishing Group
    Nature 198 (1963), S. 268-269 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] AN oxygen effect (greater radiation sensitivity when irradiated in the presence of oxygen) has been obtained for mammalian cells in vivo1 and in vitro*. Also following the incorporation of 5-bromodeoxyuridine (BUDR) into the deoxyribonucleie acid (DNA) of mammalian cells, a sensitizing effect ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/198268a0
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  • 2
    Electronic Resource
    Electronic Resource
    Nitrate esters: Novel sex pheromone components of the cotton leafperforator, Bucculatrix thurberiella busck. (Lepidoptera: Lyonetiidae)
    Amsterdam : Elsevier
    Tetrahedron Letters 33 (1992), S. 4811-4814 
    Details
    ISSN: 0040-4039
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/S0040-4039(00)61292-3
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  • 3
    Electronic Resource
    Electronic Resource
    Identification of a component of the female sex pheromone of callosobruchus analis (coleoptera: bruchidae)
    Amsterdam : Elsevier
    Tetrahedron Letters 32 (1991), S. 129-132 
    Details
    ISSN: 0040-4039
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/S0040-4039(00)71236-6
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  • 4
    Electronic Resource
    Electronic Resource
    (Z)-9-tetradecenal: a potent inhibitor of pheromone-mediated communication in the oriental tobacco budworm moth, Helicoverpa assulta (1995)
    Springer
    Journal of comparative physiology 177 (1995), S. 695-699 
    Details
    ISSN: 1432-1351
    Keywords: Helicoverpa assulta ; Sex pheromone ; Inhibitor ; Interspecific interruption ; Field experiments
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The behavioural significance of (Z)-9-tetradecenal to male H. assulta was tested by comparing the number of moths attracted to lures containing a standard synthetic female sex pheromone with lures in which (Z)-9-tetradecenal was also added. The standard pheromone mixture used contained 1000 μg (Z)-9-hexadecenal, 50 μg (Z)-11-hexadecenal, 300 μg (Z)-9-hexadecenyl acetate and 15 μg (Z)-11-hexadecenyl acetate impregnated on rubber septa. Addition of (Z)-9-tetradecenal to the standard pheromone was shown to significantly reduce the caught of male H. assulta when added in amounts greater than 10 μg or 1% of the major pheromone component in both field and net-house experiments. The reduction in catch was found to be dependent on the quantity of (Z)-9-tetradecenal added to the standard pheromone. The implications of these results on conspecific and inter-specific pheromone-mediated communication in H. assulta and related sympatric heliothine species is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00187628
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  • 5
    Electronic Resource
    Electronic Resource
    Identification and field optimisation of the female sex pheromone of the rice leaffolder,Cnaphalocrocis medinalis in India (1995)
    Springer
    Entomologia experimentalis et applicata 74 (1995), S. 195-200 
    Details
    ISSN: 1570-7458
    Keywords: rice leaffolder ; Cnaphalocrocis medinalis ; Lepidoptera ; Pyralidae ; (Z)-11-hexadecenyl acetate ; (Z)-13-octadecenyl acetate ; (Z)-13-octadecen-1-ol ; octadecyl acetate ; sex pheromone ; attractant
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Analysis of ovipositor washings from virgin femaleCnaphalocrocis medinalis Guenée (Lepidoptera: Pyralidae) of Indian origin by linked gas chromatography and electroantennography indicated the presence of three electrophysiologically-active compounds. These were identified on the basis of their gas chromatographic retention times and mass spectra as (Z)-11-hexadecenyl acetate, (Z)-13-octadecenyl acetate and (Z)-13-octadecen-1-ol with (Z)-13-octadecenyl acetate present in amounts of between 0.25 and 1.5 ng per ovipositor and the other two components at less than 10% of this. Trace quantities of octadecyl acetate were identified by mass spectrometry but no electroantennographic responses were observed to this compound. Field trials conducted with a range of blends of the three electrophysiologically-active compounds showed that blends containing between 5% and 30% (Z)-11-hexadecenyl acetate in (Z)-13-octadecenyl acetate dispensed from either white rubber septa or polythene vials were more attractive to male moths than a virgin female moth. Addition of (Z)-13-octadecen-1-ol reduced attractiveness to male moths in the blends and concentrations tested.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02381782
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  • 6
    Electronic Resource
    Electronic Resource
    Components of female sex pheromone of cocoa pod borer moth,Conopomorpha cramerella (1986)
    Springer
    Journal of chemical ecology 12 (1986), S. 1-23 
    Details
    ISSN: 1573-1561
    Keywords: Cocoa pod borer ; Conopomorpha cramerella ; Acrocercops cramerella ; Lepidoptera ; Gracillariidae ; sex pheromone ; sex attractant ; 4,6,10-hexadecatrienyl acetate ; 4,6,10-hexadecatrien-1-ol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The cocoa pod borer,Conopomorpha cramerella (Snellen) (Lepidoptera: Gracillariidae), is the most serious pest of cocoa in Southeast Asia. Analyses of ovipositor washings and entrained volatiles from virgin female moths by gas chromatography (GC) linked to electroantennography (EAG), and comparison of EAG responses from the male moth to synthetic compounds indicated the presence of theE,Z,Z andE,E,Z isomers of 4,6,10-hexadecatrienyl acetate and the corresponding alcohols, and of hexadecyl alcohol. Amounts of pheromone produced were less than 0.1 ng/female, and no peaks for the unsaturated components were observed on GC analysis. Extensive field testing of synthetic mixtures in Sabah, East Malaysia, showed that traps baited with a polyethylene vial impregnated with 1.2 mg of a mixture of the above five components in 40∶60∶4∶6∶10 ratio caught more maleC. cramerella moths than traps baited with a virgin female moth.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01045587
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  • 7
    Electronic Resource
    Electronic Resource
    Sex pheromone of female african white rice stem borer,Maliarpha separatella (Lepidoptera: Pyralidae) from Sierra Leone: Identification and field testing (1991)
    Springer
    Journal of chemical ecology 17 (1991), S. 1205-1219 
    Details
    ISSN: 1573-1561
    Keywords: Maliarpha separatella ; (Z)-9-tetradecen-1-ol ; (Z,E)-9,12-tetradecadien-1-o1 ; (E,E)-10,12-tetradecadien-1-o1 ; sex pheromone ; Lepidoptera ; Pyralidae
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Analysis of ovipositor washings of femaleMaliarpha separatella from Sierra Leone by high-resolution gas chromatography (GC) linked to a male electroantennograph (EAG) indicated the presence of three electrophysiologically active compounds. The GC retention times of these compounds were consistent with those of (Z)-9-tetradecen-1-ol, (Z,E)-9,12-tetradecadien-1-ol, and (E,E)-10,12-tetradecadien-1-ol. Analysis by El and CI mass spectrometry of ovipositor washings confirmed these identifications and also indicated the presence of the saturated analog, tetradecan-1-ol. There was no evidence, from these analyses, of the corresponding aldehydes or acetates. The EAG-active compounds were present in the ovipositor washings in a ratio of approximately 2∶3.5∶1, with the major component constituting approximately 0.4 ng per ovipositor. GC-MS analysis of entrained female effluvia confirmed that the EAG-active compounds were released by virgin females. Field testing of the EAG-active compounds indicated that (Z,E)-9,12-tetradecadien-1-ol and (E,E)10,12-tetradecadien-1-ol were attractive to male moths in ratios of between 9:1 and 39:1, while (Z)-9-tetradecen-1-ol was found to reduce trap catch when added to blends of the other two compounds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01402944
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  • 8
    Electronic Resource
    Electronic Resource
    Female sex pheromone of oriental tobacco budworm,Helicoverpa assulta (Guenee) (Lepidoptera: Noctuidae): Identification and field testing (1992)
    Springer
    Journal of chemical ecology 18 (1992), S. 403-418 
    Details
    ISSN: 1573-1561
    Keywords: Helicoverpa assulta ; Heliothis ; Lepidoptera ; Noctuidae ; hexadecanal ; (Z)-9-hexadecenal ; (Z)-11-hexadecenal ; hexadecyl acetate ; (Z)-9-hexadecenyl acetate ; (Z)-11-hexadecenyl acetate ; hexadecan-1-ol ; (Z)-9-hexadecen-1-ol ; (Z)-11-hexadecen-1-ol ; sex pheromone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Analysis of ovipositor washings from virgin femaleHelicoverpa assulta (Guenée) (Lepidoptere: Noctuidae) from Korea by gas chromatography (GC) linked to electroantennography and GC linked to mass spectrometry resulted in the identification of nine compounds, hexadecanal, (Z)-9-hexadecenal, (Z)-11-hexadecenal, hexadecyl acetate, (Z)-9-hexadecenyl acetate, (Z)-11-hexadecenyl acetate, hexadecan-l-ol, (Z)-9-hexadecen-l-ol, and (Z)-11-hexadecen-1-ol. However, ovipositor washings from females from Thailand contained mainly the 16-carbon aldehydes with very small amounts of (Z)-9-hexadecenyl acetate. Field tests conducted in Korea, China, and Thailand indicated that a binary blend of (Z)-9-hexadecenal and (Z)-11-hexadecenal was sufficient for attraction, although the most attractive ratio of compounds varied with location. In Korea a 20∶1 blend of compounds was the most attractive, while in Thailand a 7.5∶1 blend was most attractive. In China both blends of hexadecenal isomers were equally attractive. Addition of the hexadecenyl acetates to the 20∶1 blend of hexadecenals in the ratio of 1∶3.3 increased the trap catch of maleH. assulta compared to lures containing the aldehydes alone in Korea but reduced trap catch in China. Addition of the hexadecenyl acetates to the 7.5∶1 blend of hexadecenals had no significant effect on trap catch in Thailand or China compared to the aldehydes alone. The addition of the 16-carbon alcohols to the aldehydes had a significantly inhibitory effect in all three countries, suggesting they are not pheromone components. Taken together these results indicate thatH. assulta is polymorphic with at least two populations responding to different sex pheromones.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00994240
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  • 9
    Electronic Resource
    Electronic Resource
    The female sex pheromone of sugarcane stalk borer,Chilo auricilius identification of four components and field tests (1986)
    Springer
    Journal of chemical ecology 12 (1986), S. 1377-1388 
    Details
    ISSN: 1573-1561
    Keywords: Sugarcane stalk borer ; Chilo auricilius ; Lepidoptera ; Pyralidae ; sex pheromone ; sex attractant ; (Z)-7-dodecenyl acetate ; (Z)-8-tridecenyl acetate ; (Z)-9-tetradecenyl acetate ; (Z)-10-pentadecenyl acetate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Four pheromonal components have been detected in ovipositor washings and volatiles from female sugarcane stalk borers,Chilo auricilius Dudgeon (Lepidoptera: Pyralidae), using combined gas chromatography-electroantennography. The components have been identified as (I) (Z)-7-do-decenyl acetate, (II) (Z)-8-tridecenyl acetate, (III) (Z)-9-tetradecenyl acetate, and (IV) (Z)-10-pentadecenyl acetate by comparison of their gas chromatographic behavior with that of synthetic standards. In field tests carried out in northern India during 1982–1984, a combination of II, III, and IV in their naturally occurring ratio (8∶4∶1) was shown to provide a highly attractive synthetic source for trap use. (Z)-7-Dodecenyl acetate was found to reduce catches of maleC. auricilius, both when dispensed with the other three components and when released from dispensers surrounding a trap baited with the other three components.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01012357
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  • 10
    Electronic Resource
    Electronic Resource
    Sex pheromones of rice moth,Corcyra cephalonica Stainton (1987)
    Springer
    Journal of chemical ecology 13 (1987), S. 1575-1589 
    Details
    ISSN: 1573-1561
    Keywords: Rice moth ; Corcyra cephalonica ; Lepidoptera ; Pyralidae ; Galleriinae ; female pheromone ; courtship pheromone ; olfactometer ; electroantenogram ; 6,10,14-trimethyl-2-pentadecanol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Laboratory investigations of mating behavior in the rice moth,Corcyra cephalonica Stainton (Lepidoptera: Pyralidae; Galleriinae) showed that male moths are attracted at short range to live, virgin female moths and to female abdominal-tip extract. Volatiles collected from virgin female moths contained one component eliciting an electroantennographic (EAG) response from the male moth, and the chemical, spectroscopic, and Chromatographic data on this component were consistent with that of synthetic 6,10,14-tri-methyl-2-pentadecanol. This compound caused an EAG response from the male moth and attracted male moths in the bioassay. The pheromone is thought to play a role in courtship, and the synthetic material was shown to cause the male moths to search for a mate and attempt copulation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00980201
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