Library

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
  • 1970-1974  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Anatomische und physiologische Untersuchungen zur Wasserbewegung in Kiefernnadeln (1973)
    Springer
    Planta 109 (1973), S. 105-119 
    Details
    ISSN: 1432-2048
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The endodermis of the needle in pine consists of a continuous sheath of parenchymatous cells in which the water transport can occur only through the cytoplasma or across the radial walls. Topochemical results have shown that the radial cell walls, in contrast to the tangential ones, contain lignin as well as other aromatic substances and consequently permit only a very limited permeability. The water transport in needles of pine without an epidermis is accompanied by a high temperature coefficient and a sensitivity towards inhibitors. On the basis of these results as well as the behaviour of needles after an abrupt break in transpiration and the fact that the plasma in the endodermis has a high permeability, it can be concluded that in the endodermis of the needle the water transport occurs mainly in the cytoplasm.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00386118
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    The morphological variability of the bordered pit membranes in gymnosperms (1972)
    Springer
    Wood science and technology 6 (1972), S. 165-184 
    Details
    ISSN: 1432-5225
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary The membranes of bordered pits were investigated in 120 species of 47 genera of the gymnospermous families, using light and electron microscopic techniques. A great variability in the morphological structure of the pit membranes has been established. The differences in structure are pronounced and depend mainly on the genus involved. A classification of six morphological “structure types” is presented. They do not necessarily correspond with the chemical composition and the functional behaviour. The results on the variability of the pit membrane have shown the necessity of an extended definition for the torus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00351575
    Library Location Call Number Volume/Issue/Year 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...