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  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Biomembranes 173 (1969), S. 436-447 
    ISSN: 0005-2736
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 54 (1998), S. 507-509 
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Journal of Chromatography A 448 (1988), S. 387-390 
    ISSN: 0021-9673
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Journal of Chromatography A 448 (1988), S. 371-386 
    ISSN: 0021-9673
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    International Journal of Psychophysiology 7 (1989), S. 146-147 
    ISSN: 0167-8760
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine , Psychology
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/General Subjects 304 (1973), S. 65-75 
    ISSN: 0304-4165
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 128 (1997), S. 881-891 
    ISSN: 1434-4475
    Keywords: 2-Methoxymethylpyrrolidine ; Carbon disulfide ; Pyrrolidine-1-dithiocarboxylates ; Crystal structure ; Diastereomers ; HPLC
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Formation of the 2-methoxymethyl-pyrrolidine-1-dithiocarboxylates2–4 and alkylation of2 and3 were studied. Enantiomeric and diastereomeric derivatives of4, the preparation of diastereomeric mixtures of4 by alkylation of3 in the presence of strong bases, and formation of6 by phase transfer alkylation of2 are described. The two enantiomers of 2-(4-bromophenyl)-2-oxo-ethyl 2-methoxymethylpyrrolidine-1-dithiocarboxylate2 have been characterized by X-ray analysis.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 34 (1978), S. 363-364 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Rapid loss of cochlear microphonics in guinea-pigs previously exposed to high-energy impulse noise was shown to be related to the breakdown of the endolymphatic boundary. The cochlear duct was rendered leaky by deterioration of the reticular membrane, and damage of sensory and supporting cells.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Die photosynthetischen Bakterien Rhodospirillum rubrum und Rhodopseudomonas capsulata wurden auf ihre Fettsäurezusammensetzung untersucht. Die Hauptfettsäuren von R. rubrum waren C16:0 (11%), C16:1 (30%) und C18:1 (52%). Vaccensäure (C18:1) bildete 94% der Fettsäuren von Rps. capsulata. Anaerobe Lichtzellen (thylakoidhaltig) unterschieden sich nicht in ihrem Fettsäuremuster von aeroben Dunkelzellen (thylakoidfrei). Gereinigte Thylakoide aus Lichtzellen zeigten das gleiche Fettsäuremuster wie die ganzen Zellen. Nach Phenol/Wasser-Extraktion der ganzen Zellen bei 68° C war bei beiden Organismen sowohl aus Licht- als auch aus Dunkelzellen eine Substanz aus der gäßrigen Phase isolierbar, welche in den Sedimentationseigenschaften mit den Lipopolysacchariden der Enterobacteriaceae übereinstimmte und nach orientierenden Untersuchungen Zucker enthält. Aus ihr wurde ein Fettsäuregemisch gewonnen, dessen Zusammensetzung von dem aus ganzen Zellen erheblich abwich. In Rps. capsulata enthielt es C12:1 (40%) und C16:0 (50%), während in R. rubrum sich das Fettsäuremuster über den Bereich von C10 bis C20 erstreckte. Licht- und Dunkelzellen wiesen in dieser Substanz Unterschiede in der Fettsäurezusammensetzung auf. Der quantitative Anteil der Fettsäuren in dieser Substanz, bezogen auf die Gesamtfettsäuren der Zelle, betrug in Licht- und Dunkelzellen 5–7%. Hydroxy-myristinsäure ließ sich in beiden Organismen nicht nachweisen.
    Notes: Summary The fatty acid composition of the photosynthetic bacteria Rhodospirillum rubrum and Rhodopseudomonas capsulata was investigated. The bulk of fatty acids of R. rubrum consisted of C16:0 (11%), C16:1 (30%), and C18:1 (52%). The major fatty acid of Rps. capsulata was vaccenic acid (C18:1), which accounted for 94% of the total fatty acids. Cells of both organisms, which were grown anaerobically in the light and fitted out with thylakoids had the same fatty acid composition as cells grown aerobically in the dark, which have no thylakoids. Purified thylakoids had the same fatty acid pattern as whole cells. Whole cells of light and dark cultures were extracted with phenol/water at 68° C. An opalizing fraction in the aqueous phase was sedimentable in the ultracentrifuge like the lipopolysaccharides of the Enterobacteriaceae. The pattern of fatty acids in this compound differed considerably from that of whole cells. The major fatty acids in this macromolecular fraction were C12:1 (40%) and C16:0 (50%) in Rps. capsulata, whereas in R. rubrum the whole range of fatty acids from C10 to C20 was demonstrable. Light and dark grown cells differed in the fatty acid composition of that compound. The fatty acid content of the extracted fraction accounted for 5–7% of the total fatty acids of whole cells. No hydroxymyristic acid could be identified in either R. rubrum or Rps. capsulata.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Archives of microbiology 75 (1971), S. 171-178 
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Eine Reihe von handelsüblichen Detergenzien wurde auf ihre Fähigkeit getestet, Thylakoide von R. rubrum in kleinere Einheiten zu zerlegen. Die Auftrennung der Bruchstücke erfolgte im Saccharosegradienten. Die so erhaltenen Fraktionen wurden in der Gelelektrophorese in Phenol-Ameisensäure-Wasser auf ihre Proteinzusammensetzung untersucht. Die Detergenzien ließen sich nach ihrer Wirkung in 3 Gruppen einteilen: 1. Freisetzung eines locker gebundenen Proteins, das m\:oglicherweise aus dem Thylakoidinnern stammt. 2. Aufspaltung zu Untereinheiten vom Molgewicht ca 6\sd105, die noch s\:amtliche Thylakoidbausteine in thylakoid\:ahnlicher Zusammensetzung enthalten. 3. Aufspaltung zu kleineren Einheiten, die nicht mehr s\:amtliche Thylakoidbausteine enthalten. Die Gruppen 1 und 2 bestehen aus Kondensations-produkten mit Fettalkoholen oder Phenolen. Bereits Unterschiede im Polykondensationsgrad k\:onnen f\:ur die Einteilung in Gruppe 1 oder 2 entscheidend sein. Die 3. Gruppe der Detergenzien bestand aus ionischen Verbindungen. Durch Behandlung mit Dodecanol+8 \:AO gelang es, die bei der Einwirkung von Triton X 100 verbleibenden Partikel von angen\:aherter Thylakoidform in Untereinheiten von Molgewicht ca. 6\sd105 abzubauen. F\:ur die Stabilit\:at dieser Untereinheiten sind wahrscheinlich Wasserstoffbr\:ucken mit verantwortlich. Eine Abtrennung einzelner Proteine war nach Detergenzienbehandlung und Zonenzentrifugation nicht m\:oglich.
    Notes: Summary Thylakoids of Rhodospirillum rubrum were treated with different detergents and the splitting products were separated by saccharose density gradient centrifugation. The fractions were isolated from the gradient, solubilized in phenol: formic acid: water (2:1:1, w:v:v) and investigated on their protein patterns by polyacrylamide gel electrophoresis. Three groups of detergents relative to their kind of splitting were found: 1. The non-ionic detergents Brij 35, Lensodel NP 40 and Tween 20, which are condensation products of fatty alcohols or phenols, splitted off the protein 2a from the thylakoids. The fast precipitating fraction consisted of thylakoids. 2. After treatment of thylakoids with Triton X 100, Dodecanol+8 ÄO (Polyoxiethylenlaurylether) and Nonidet P40 the proteins 2a and C cleaved off. Three zones in the gradient were observable. The middle zone consisted of subparticles with a molecular weight of about 6·105 which have all thylakoid proteins besides the protein 2a. 3. The ionic detergents Hyamin 1622, dodecylpyridiniumchloride and 6-phenyln-dodecan-p-sulfonate decomposed most of the material in smaller particles which are found in the upper part of the gradient (280 000· g, 5→35% saccharose, 22 h). In the uppermost zone the proteins 3 and 4 are detectable. An isolation of single proteins by the described method was not possible.
    Type of Medium: Electronic Resource
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