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  • Chemistry  (49)
  • Apomorphine  (4)
  • Lycopersicon esculentum  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Postinfectional changes of lipids and photosynthesis in Lycopersicon esculentum susceptible to Phytophthora capsici
    Amsterdam : Elsevier
    Plant Science 61 (1989), S. 169-178 
    Details
    ISSN: 0168-9452
    Keywords: Lycopersicon esculentum ; Phytophthora capsici ; chlorophylls ; fatty acids ; photosynthesis ; plant-pathogen interaction
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0168-9452(89)90221-5
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Polar lipids in healthy and Phytophthora capsici-infected leaflets of Lycopersicon esculentum
    Amsterdam : Elsevier
    Phytochemistry 31 (1992), S. 1961-1967 
    Details
    ISSN: 0031-9422
    Keywords: Lycopersicon esculentum ; Phytophthora capsici ; Solanaceae ; fatty acids ; glycoglycerolipids ; oomycete ; phospholipids ; plant-pathogen interactions ; polar lipids.
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0031-9422(92)80342-C
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  • 3
    Electronic Resource
    Electronic Resource
    Pigment evolution in Lycopersicon esculentum fruits during growth and ripening
    Amsterdam : Elsevier
    Phytochemistry 14 (1975), S. 2357-2362 
    Details
    ISSN: 0031-9422
    Keywords: Lycopersicon esculentum ; Solanaceae ; carotenoids ; chlorophylls. ; maturation ; plastids ; tomato fruit
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0031-9422(75)80344-X
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Ability of 3-carboxysalsolinol to produce ethanol-like discrimination in rats (1980)
    Springer
    Psychopharmacology 68 (1980), S. 277-281 
    Details
    ISSN: 1432-2072
    Keywords: Drug discrimination ; Ethanol ; Apomorphine ; Salsolinol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The purpose of the present study was to investigate the possible generalization to 3-carboxysalsolinol (3C-SAL) in a group of rats trained to discriminate a low dose of ethanol (200 mg/kg IP) from the nondrug condition and in another group trained to discriminate 0.16 mg/kg IP apomorphine (AP) from the nondrug condition using a drug discrimination paradigm. In test sessions, ED50 for ethanol was 52.0 mg/kg and ED50 for AP was 0.01 mg/kg. In the ethanol-trained rats, 1.8 mg/kg 3C-SAL produced drug responses. In the AP-trained rats, 200 mg/kg ethanol produced drug responses whereas 1.8 mg/kg 3C-SAL produced only a partial drug response. The results are in harmony with the hypothesis that salsolinol in the central nervous system of the rat may be responsible for the discriminability of ethanol. The possible involvement of dopaminergic systems is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00428115
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  • 5
    Electronic Resource
    Electronic Resource
    Dopaminergic mediation of the interoceptive cue produced by d-amphetamine in rats (1975)
    Springer
    Psychopharmacology 42 (1975), S. 185-193 
    Details
    ISSN: 1432-2072
    Keywords: Amphetamine ; Dopamine ; Haloperidol ; State-Dependent Behavior ; Apomorphine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract After rats were trained to differentiate between the effects of d-amphetamine and saline in a state-dependent task, pretreatment with the tyrosine hydroxylase inhibitor, α-methyl-p-tyrosine, significantly decreased amphetamine discrimination. Pretreatment with the dopamine-Β-hydroxylase inhibitor, disulfiram, or with the tryptophan hydroxylase inhibitor, p-chloro-phenylalanine, was observed to have no effect on the rats' ability to discriminate d-amphetamine. Administration of haloperidol, a selective dopamine receptor blocker, completely abolished the amphetamine discrimination, whereas α- and Β-adrenergic receptor blockade had no effect. Apomorphine, a dopamine receptor stimulant, produced amphetamine-like responses and this was, likewise, abolished by pretreatment with haloperidol. These data suggest that dopaminergic systems mediate the interoceptive cue produced by d-amphetamine in rats, and these results are discussed in relation to possible dopamine mediation of amphetamine psychosis and paranoid schizophrenia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00429551
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  • 6
    Electronic Resource
    Electronic Resource
    Effect of apomorphine and nigrostriatal lesions on aggression and striatal dopamine turnover during morphine withdrawal: Evidence for dopaminergic supersensitivity in protracted abstinence (1974)
    Springer
    Psychopharmacology 34 (1974), S. 37-44 
    Details
    ISSN: 1432-2072
    Keywords: Aggression ; Morphine Addiction ; Apomorphine ; Dopamine Receptors ; Receptor Supersensitivity ; Narcotic Abstinence ; Nigrostriatal Lesion ; Medial Forebrain Bundle Lesion ; Protracted Abstinence ; Dopamine Turnover
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Reliable aggression was seen in rats which were grouped 30 days after undergoing continuous withdrawal from morphine. This withdrawal aggression, associated with long-lasting effects of morphine dependence, was blocked by morphine or lesions of the nigrostriatal bundle, but not by lesions of the median forebrain bundle. When the nigrostriatal lesioned rats were treated with a small dose of apomorphine, the aggression was reinstated. Apomorphine reduced the turnover of dopamine in the 30-day withdrawn rats at doses which were ineffective in similarly housed non-dependent rats. These results suggest that animals undergoing protracted morphine abstinence show aggression due to a latent dopaminergic supersensitivity, similar to that previously reported during acute narcotic withdrawal.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00421218
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  • 7
    Electronic Resource
    Electronic Resource
    Paradoxical absence of aggression during naloxone-precipitated morphine withdrawal (1975)
    Springer
    Psychopharmacology 43 (1975), S. 43-46 
    Details
    ISSN: 1432-2072
    Keywords: Aggression ; Morphine ; Naloxone ; Apomorphine ; Amphetamine ; Narcotic Withdrawal
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Aggression, which is normally seen during withdrawal from narcotics, could not be produced in morphine-dependent rats by the administration of naloxone at doses which cause other signs of withdrawal. Apomorphine injected instead of naloxone was capable of producing aggression, without other withdrawal signs. Naturally occurring aggression (72-hr withdrawal) was enhanced by apomorphine and unaffected by naloxone.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00437613
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  • 8
    Electronic Resource
    Electronic Resource
    A scanning tunneling microscope study of single crystal polyethylene (1990)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Letters Edition 28 (1990), S. 399-410 
    Details
    ISSN: 0887-6258
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The scanning tunneling microscope has been used to image single crystal polyethylene lamellae coated with thin Au or Cr overlayers. The images show a variety of different morphologies ranging from single crystal lamella resting on atomically flat, highly oriented pyrolitic graphite substrates to large pyramidal structures formed by a multilayer growth process. Small outgrowth structures were observed on the top surface of many individual lamellae and were found to be in registry with the edge of the underlying “seed” lamella. The STM studies show evidence for sectorization of the single crystal lamella as well as plastic deformation of overlapping lamellae involving c-axis slip.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1990.140281302
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  • 9
    Electronic Resource
    Electronic Resource
    Matrix-assisted laser desorption/ionization mass spectrometry: Improved matrix for oligosaccharides (1995)
    New York, NY : Wiley-Blackwell
    Rapid Communications in Mass Spectrometry 9 (1995), S. 809-814 
    Details
    ISSN: 0951-4198
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: The aim of this article was to study the influence of different matrix molecules on the quality of matrix-assisted laser desorption/ionization mass spectra of oligosaccharides. An important criterion was the sample preparation, i.e. the crystallization process leading to the matrix from which the analytes were desorbed and investigated. Quality criteria were, among others, the resulting molecular peak intensity, the mass resolution, and the suppression of unwanted matrix peaks. It was found that a mixture of 2,5-dihydroxy benzoic acid (DHB) and 1-hydroxy isoquinoline (HIC) in a weight ratio of 3:1 was best suited for the analytical investigation of oligosaccharides. In addition, this matrix mixture was found to be quite tolerant against all kinds of buffers, salts, and even additives such as sodium dodecyl sulfate (SDS). Furthermore, we determined the different affinities of the alkaline metals to the carbohydrates and found that cesium and potassium ions ionize oligosaccharides about three times better than sodium ions and therefore have an important influence on the quantum yield.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/rcm.1290090919
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  • 10
    Electronic Resource
    Electronic Resource
    Ion exchange and purification of carbohydrates on a Nafion®Trademark of Du Pont. membrane as a new sample pretreatment for matrix-assisted laser desorption/ionization mass spectrometry (1995)
    New York, NY : Wiley-Blackwell
    Rapid Communications in Mass Spectrometry 9 (1995), S. 1031-1034 
    Details
    ISSN: 0951-4198
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: A Nafion membrane was tested as a new tool for a fast and easy sample pretreatment for matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) measurements. This membrane material was used for ion exchange and carbohydrate purification with minimal quantities of sample solution. An ion exchange method for carbohydrates was developed and demonstrated on a Dextran sample. The cations of the original sample were replaced within minutes by potassium or cesium ions. Another feature of this membrane was the fact that proteins and peptides adsorb on the acid surface. This behavior was investigated as a purification step for carbohydrates with high peptide and protein impurity concentrations. It was found that oligosaccharide libraries from rat- and mouse IgG mass spectra can be obtained clearly in the presence of high peptide impurities.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/rcm.1290091112
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