ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • reticulocyte maturation  (2)
  • 1D trNOESY-TOCSY  (1)
  • Climate change  (1)
  • Springer  (4)
  • American Institute of Physics
  • Copernicus
  • Public Library of Science
Collection
Keywords
Publisher
  • Springer  (4)
  • American Institute of Physics
  • Copernicus
  • Public Library of Science
Years
  • 1
    Electronic Resource
    Electronic Resource
    Impact of long-term drought on xylem embolism and growth in Pinus halepensis Mill. (1998)
    Springer
    Trees 12 (1998), S. 187-195 
    Details
    ISSN: 0931-1890
    Keywords: Key words Aleppo pine ; Climate change ; Water stress ; Cavitation ; Transpiration
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract  The present study was carried out to elucidate the response mechanisms of 50-year-old Pinus halepensis Mill. trees to a long-term and severe drought. The amount of water available to trees was artificially restricted for 12 months by covering the soil with a plastic roof. Over the short term a direct and rapid impact of drought was evident on the water relations and gas exchanges of trees: as the soil dried out in the Spring, there was a concurrent decrease of predawn water potential; transpiration was strongly reduced by stomatal closure. Seasonal changes in the water volume fractions of twig and stem xylem were observed and interpreted as the result of cavitation and refilling in the xylem. When droughted trees recovered to a more favourable water status, refilling of embolized xylem was observed; twig predawn water potentials were still negative in the period when the embolism was reversed in the twig xylem. A few months after the removal of the covering, no differences in whole plant hydraulic resistance were observed between droughted and control trees. Needle and shoot elongation and stem radial growth were considerably reduced in droughted trees; no strategy of trees to allocate carbon preferentially to the stem conducting tissues was apparent throughout the experiment. An after-effect of the drought on growth was observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00009709
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Effects of Ca2+ and lipoxygenase inhibitors on hexokinase degradation in rabbit reticulocytes (1989)
    Springer
    Molecular and cellular biochemistry 85 (1989), S. 3-7 
    Details
    ISSN: 1573-4919
    Keywords: hexokinase degradation ; reticulocyte maturation ; Ca2+ ; SHAM
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract In rabbit reticulocytes more than half of the total hexokinase activity is mitochondrial bound and shows a fast decay during reticulocyte maturation. During in vitro incubation of rabbit reticulocytes, Ca2+ increases the decay of hexokinase while salicylhydroxamate (SHAM), an inhibitor of lipoxygenase, reduces the decay. Swelling of mitochondria, by incubation of the cells in hypotonic solutions, greatly enhances hexokinase decay, but both the Ca2+ and SHAM are still appreciable suggesting that Ca2+ and the swelling act by additive mechanisms, both able to influence hexokinase decay. This was confirmed by incubation of rabbit brain mitochondria in hypotonic solutions which does not promote any hexokinase decay, while the presence of Ca2+ does. Analyses of hexokinase isozymic pattern after incubation of reticulocytes in hypotonic solution both with and without Ca2+ and SHAM showed that the decay of hexokinase mainly involves the mitochrondrial bound isozymic forms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00223508
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Hexokinase microheterogeneity in rabbit red blood cells and its behaviour during reticulocytes maturation (1988)
    Springer
    Molecular and cellular biochemistry 79 (1988), S. 133-136 
    Details
    ISSN: 1573-4919
    Keywords: hexokinase heterogeneity ; reticulocyte maturation ; (rabbit)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Abstract Hexokinase in rabbit reticulocytes is present in two molecular forms (hexokinase Ia and Ib) separable by ion-exchange chromatography on DE-52 columns. By the use of ion-exchange HPLC we have been able to show that the isozymic form we previously called hexokinase la can be resolved into two peaks of activity one of which is (Ia) soluble, the other (Ia*) particulate. Hexokinase Ia* can be solubilized by detergents like saponine and Triton X-100 and disappears during ‘in vivo’ reticulocytes maturation. This new hexokinase micro-heterogeneity is not caused by different oxidized forms of the enzyme nor influenced by the presence of proteolytic inhibitors during lysate preparation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02424555
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Application of homonuclear 3D NMR experiments and 1D analogs to study the conformation of sialyl Lewisx bound to E-selectin (1997)
    Springer
    Journal of biomolecular NMR 9 (1997), S. 423-436 
    Details
    ISSN: 1573-5001
    Keywords: 3D TOCSY-trNOESY ; 1D TOCSY-trNOESY ; 1D trNOESY-TOCSY ; trNOE ; trROE ; E-selectin ; sialyl Lewisx
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The conformation of the sialyl Lewis x tetrasaccharidebound to E-selectin was previously determined from transfer NOE (trNOE)experiments in conjunction with a distance-geometry analysis. However, theorientation of the tetrasaccharide ligand in the binding site of E-selectinis still unknown. It can be predicted that the accurate quantitativeanalysis of all trNOEs, including those originating from spin diffusion, isone key to analyze the orientation of sialyl Lewisx in thebinding pocket of E-selectin. Therefore, we applied homonuclear 3D NMRexperiments and 1D analogs to obtain trNOEs that could not unambiguously beassigned from previous 2D trNOESY spectra, due to severe resonance-signaloverlap. A 3D TOCSY-trNOESY experiment, a 1D TOCSY-trNOESY experiment, and a1D trNOESY-TOCSY experiment of the sialyl Lewisx/E-selectincomplex furnished new interglycosidic trNOEs and provided additionalinformation for the interpretation of trNOEs that have been describedbefore. A 2D trROESY spectrum of the sialyl Lewisx/E-selectincomplex allowed one to identify the amount of spin-diffusion contributionsto trNOEs. Finally, an unambiguous assignment of all trNOEs, and an analysisof spin-diffusion pathways, was obtained, creating a basis for aquantitative analysis of trNOEs in the sialylLewisx/E-selectin complex.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018358929268
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...