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  • 1
    Electronic Resource
    Electronic Resource
    Protein-phosphatase inhibitors block root hair growth and alter cortical cell shape ofArabidopsis roots (1994)
    Springer
    Planta 194 (1994), S. 516-524 
    Details
    ISSN: 1432-2048
    Keywords: Arabidopsis ; Calyculin-A ; Okadaic acid ; Protein phosphatase ; Root development
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Emerging evidence suggests that protein phosphatases play an important role in the growth and development of higher plants. We report here on the effects of okadaic acid and calyculin-A, two specific and potent inhibitors of the type-1 and type-2A families of serine/ threonine protein phosphatases, on the growth and development ofArabidopsis thaliana L. roots. Application of these drugs in nanomolar ranges arrested root hair growth, severely affected the shape of cells within the zone of elongation and inhibited root growth rates. Root hair elongation was inhibited by concentrations of okadaic acid and calyculin-A as low as 3 nM. The pleiotropic effects of okadaic acid and calyculin-A point to multiple functions for type-1 and -2A protein phosphatases in controlling root growth and development.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00714465
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Application of capillary supercritical fluid chromatography to the analysis of a middle distillate fuel (1984)
    Springer
    Chromatographia 18 (1984), S. 542-545 
    Details
    ISSN: 1612-1112
    Keywords: Supercritical fluid chromatography ; Alumina ; Fused silica capillary columns ; Middle distillate fuel
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary The application of capillary supercritical fluid chromatography (SFC) to the analysis of a middle distillate fuel is described. Small diameter (50μm i.d.) fused-silica capillary columns coated with crosslinked 50% phenyl polymethylphenyl siloxane provided high separation efficiency and good compatibility with flame ionization detection. High resolution separations of the chemical class fractions obtained by adsorption chromatography on alumina were obtained using carbon dioxide as the supercritical mobile phase and simple pressure programming techniques. In addition to the less polar fuel components, supercritical carbon dioxide allowed chromatography of the nitrogen-containing polycyclic aromatic hydrocarbon fraction and the hydroxylated polycyclic aromatic materials.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02265691
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Rapid capillary supercritical fluid chromatographic analysis of carbamate pesticides (1985)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 8 (1985), S. 8-11 
    Details
    ISSN: 0935-6304
    Keywords: Supercritical fluid chromatography, SFC ; Fused silica capillary columns ; Rapid analysis ; Carbamate pesticides ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240080103
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    Paper (German National Licenses)
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