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  • 1-aminocyclopropane-1-carboxylic acid oxidase (activity, mRNA)  (1)
  • Aqueous  (1)
  • Auxin  (1)
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Erscheinungszeitraum
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  • 1
    Digitale Medien
    Digitale Medien
    Ethylene, gibberellins, auxin and the apical control of branch angle in a conifer, Cupressus arizonica (1980)
    Springer
    Planta 148 (1980), S. 64-68 
    Details
    ISSN: 1432-2048
    Schlagwort(e): Auxin ; Branch angle ; Conifers ; Cupressus ; Ethylene ; Gibberellin ; Hyponasty
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Decapitation, gibberellin A3, high light, their combination, and certain levels of indole-3-acetic acid increase ethylene evolution and also induce branch hyponasty (upturning) in seedlings of Cupressus arizonica Greene, the increase in ethylene preceding obvious hyponasty. Exogenous ethylene also causes branch hyponasty and branches of seedlings maintained in an atmosphere scavenged of ethylene by mercuric perchlorate grow downwards. It is concluded that ethylene may play a role in the apical control of branch angle in some conifers. The positive effect of ethylene in increasing branch hyponasty may be direct, or reflect changes in levels of endogenous auxin and/or gibberellin.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00385443
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Light- and temperature-entrained circadian regulation of activity and mRNA accumulation of 1-aminocyclopropane-1-carboxylic acid oxidase in Stellaria longipes (1996)
    Springer
    Planta 199 (1996), S. 329-335 
    Details
    ISSN: 1432-2048
    Schlagwort(e): 1-aminocyclopropane-1-carboxylic acid oxidase (activity, mRNA) ; Circadian rhythm ; Light ; Stellaria ; Temperature
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Stem and leaf tissues of Stellaria longipes Goldie (prairie ecotype) exhibit circadian rhythmicity in the activity and mRNA abundance for 1-aminocyclopropane-1-carboxylic acid oxidase (EC 1.4.3). The steady-state mRNA levels and enzymatic activity levels fluctuated with a period of approximately 24 h and reached their maxima by the middle of the light phase and minima by the middle of the dark phase. The oscillations showed damping under constant light, constant dark and constant temperature conditions, indicating that the rhythm is entrained by an external signal. The results indicate that light/dark cycles have greater entraining effects than temperature cycles. A 15-min red light pulse, but not a blue light pulse, could reset rhythm in continuous darkness, suggesting the possible role of a red-light signal transduction pathway in the circadian regulation of 1-aminocyclopropane-1-carboxylic acid oxidase.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00195723
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Thermodynamic studies of dilute aqueous solutions of cyclic ethers and simple carbohydrates (1972)
    Springer
    Journal of solution chemistry 1 (1972), S. 3-16 
    Details
    ISSN: 1572-8927
    Schlagwort(e): Aqueous ; cyclic ethers ; carbohydrates ; inositols ; apparent molal volume ; apparent molal compressibility ; density
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Abstract Apparent molal volumes and compressibilities are reported for dilute aqueous solutions of cyclic ethers, simple carbohydrates, and related polyhydroxy compounds. The results for carbohydrates are considered in the light of two theoretical descriptions of such systems, i.e., the semiideal solution approach of Stokes and Robinson, and the McMillan-Mayer theory ty[e of approach as employed by Kozak, Knight, and Kauzmann. It is concluded that neither model is satisfactory, and that for these solutions a specific hydration model, described in more detail in another paper, is more satisfactory.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00648413
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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