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  • Articles: DFG German National Licenses  (2)
  • 1980-1984  (2)
  • Halophyte  (1)
  • Phloem  (1)
Source
  • Articles: DFG German National Licenses  (2)
Material
Years
  • 1980-1984  (2)
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Quantitative ion localization within Suaeda maritima leaf mesophyll cells (1981)
    Springer
    Planta 151 (1981), S. 555-560 
    Details
    ISSN: 1432-2048
    Keywords: Halophyte ; Ion accumulation ; Suaeda
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Grown under saline conditions, Suaeda maritima accumulates Na+ and Cl- into its leaves, where individual mesophyll cells behave differently in their compartmentation of these ions. Measurements of ion concentrations within selected subcellular compartments show that freeze-substitution with dry sectioning is a valuable preparative technique for analytical electron microscopy of highly vacuolate plant material. Using this approach, absolute estimates were made of Na+, K+ and Cl- concentrations in the cytoplasm, cell walls, chloroplasts and vacuoles of leaf mesophyll cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00387435
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Cytochemical localization of ATPase activity in phloem tissues ofRicinus communis (1980)
    Springer
    Protoplasma 104 (1980), S. 55-65 
    Details
    ISSN: 1615-6102
    Keywords: ATPase cytochemistry ; Phloem ; Ricinus communis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Standard lead precipitation procedures have been used to examine the localization of ATPase activity in phloem tissues ofRicinus communis. Reaction product was localized on the plasma membrane of the companion cells associated with sieve elements and of parenchyma cells in phloem tissues from the leaf, petiole, stem and root. ATPase activity was also present on the plasma membrane and dispersed P-protein of sieve elements in petiole, stem and root tissue, but was absent from the plasma membrane of these cells in the leaf minor veins. Substitution ofβ-glycerophosphate for ATP produced no change in the localization of reaction product in leaf tissue. These findings are discussed in relation to current theories on the mechanism of sugar transport and phloem loading.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01279368
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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