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  • 1980-1984  (2)
  • 1981  (2)
  • Dampfdruckosmometrie  (1)
  • Glycine  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Planta 153 (1981), S. 130-139 
    ISSN: 1432-2048
    Keywords: Embryonic axis ; Glycine ; mRNA accumulation ; Seed development ; Storage proteins
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Mature seeds of Glycine max (L.) Merr. contain two major storage proteins, a glycosylated 7S protein (conglycinin) and a non-glycosylated 11S protein (glycinin). Accumulation of these proteins and their mRNAs during seed development in cv. Provar was studied by SDS polyacrylamide gel electrophoresis and by “Northern” (DNA-RNA) hybridization. The 11S acidic and basic subunits and the 7S α′ and α subunits began to accumulate 18–20 d after pollination, shortly after the termination of cell division in developing cotyledons, whereas the 7S β and 11S A-4 subunits were not detected until one to two weeks later, during the maturation phase of development. Messenger RNAs for 7S and 11S proteins were first detected 14–18 d after pollination, several days before the accumulation of storage proteins. Extracts from embryonic axes contained reduced levels of the 7S α subunit, very little 11S protein, no detectable 7S β or 11S A-4 subunits, and an additional 7S subunit not found in cotyledons. Soybean axes and cotyledons therefore differ in their synthesis of seed storage proteins.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 259 (1981), S. 1202-1207 
    ISSN: 1435-1536
    Keywords: Rotationsebulliometrie ; Dampfdruckosmometrie ; erster Virialkoeffizient ; zweiter Virialkoeffizient und die Theorie von Kamide und Sanada von Kamide und Sanada
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Summary Comparative theoretical and experimental studies using ebulliometry and vapour pressure osmometry were carried out for the two systems biphenyl-benzene and benzilbenzene at 36.9 °C. A slightly modified vapour pressure osmometer from the company Mechrolab and a recently developed rotating ebulliometer were used for the studies. The ebullioscopic constant of benzene is greater than the vapour pressure constant in the steady state. The experimental results agree with the theory of Kamide and Sanada. For each system, biphenyl-benzene and benzil-benzene, the 2nd ebullioscopic virial coefficientB m is greater than the apparent 2nd vapour pressure osmometric virial coefficientB s′. These results could be explained by dilution effect of the solution droplet in the vapour pressure osmometer.
    Notes: Zusammenfassung Es wurden vergleichende Untersuchungen zur Rotationsebulliometrie und Dampfdruckosmometrie theoretisch behandelt und experimentell in den Systemen Biphenyl-Benzol und Benzil-Benzol bei der Temperatur 36,9 °C durchgeführt. Dabei wurden ein Rotationsebulliometer mit einem Drehantrieb und ein umgebautes Dampfdruckosmometer der Fa. Mechrolab verwendet. Die ebullioskopische KonstanteE m ist für das Lösungsmittel Benzol größer als die dampfdruckosmometrische Konstante im stationären ZustandK s. Die experimentellen Ergebnisse zeigen eine gute Übereinstimmung mit der Theorie von Kamide und Sanada. Für beide Systeme sind bei 36,9 °C die 2. ebullioskopischen VirialkoeffizientenB m größer als die scheinbaren 2. dampfdruckosmometrischen VirialkoeffizientenB s′. Diese Ergebnisse können mit Hilfe des Verdünnungseffektes in dem Lösungstropfen im Dampfdruckosmometer erklärt werden.
    Type of Medium: Electronic Resource
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