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'Electron M icroscopy' in keywords
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1992 (1)
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1Author    T. K. Mandal, S. N. ChatterjeeRequires cookie*
 Title    Electron Microscopic Study of the Polymyxin Treated Goat Erythrocytes  
 Abstract    Polymyxin B produced dose dependent changes in the surface topography o f the goat erythrocyte cells. Transformation from the normal biconcave discs through crenated structures to the final rounded or spherical shape was recorded by scanning electron m icroscopy. A m axim um o f three to four crenations per cell was recorded corresponding to a polym yxin dose o f 15.62 ng/ml. Transmission electron m icroscopy o f the ultrathin sections o f treated or untreated erythrocytes indicated that the crenations were formed by protrusions o f the plasma membrane, occurring presumably because o f the local increase o f m em brane fluidity after polym yxin treatment. Changes in the shape o f the erythrocytes to the ultim ate rounded forms were also indicated by the transmission electron microscopy. 
  Reference    Z. Naturforsch. 39c, 776—7 (1984); received April 24 1984 
  Published    1984 
  Keywords    Polymyxin B, Erythrocytes, Surface Topography, Electron M icroscopy 
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 TEI-XML for    default:Reihe_C/39/ZNC-1984-39c-0776.pdf 
 Identifier    ZNC-1984-39c-0776 
 Volume    39 
2Author    Ulrich SchraermeyerRequires cookie*
 Title    Effects of Chloroquine on the Photosensory Membrane Turnover and the Ultrastructure of Lysosome-Related Bodies of the Crayfish Photoreceptor  
 Abstract    The effect o f chloroquine in combination with bright light on the ultrastructure o f crayfish (Orconectes limosus R.) photoreceptors was investigated in vivo. Chloroquine had several ef­ fects upon the crayfish retina. Multivesicular bodies (M VB) that are involved in lysosom al degradation o f photosensory membrane were altered in ultrastructure. M VB frequently con­ tained smaller M VB in a state o f more advanced membrane degradation. A dditionally screen­ ing pigment-like granules appeared in MVB. MVB accumulated in and filled the retinular cell cytoplasm just proximal or distal to the basement membrane which indicated inhibition o f photosensory membrane degradation. Under chloroquine treatment rhabdom degradation appeared to be inhibited, as rhabdom diameter was less reduced under these conditions. A lso chloroquine caused accumulation o f screening pigment granules in glial cells within the lamina ganglionaris. 
  Reference    Z. Naturforsch. 47c, 420 (1992); received January 17 1992 
  Published    1992 
  Keywords    Electron M icroscopy, Chloroquine, Crayfish, Photoreceptor, Screening Pigment Granules 
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 TEI-XML for    default:Reihe_C/47/ZNC-1992-47c-0420.pdf 
 Identifier    ZNC-1992-47c-0420 
 Volume    47 
3Author    F. E. Schulze, F. E. Schulze, KarlG. Grell, Gertrud BenwitzRequires cookie*
 Title    Spezifische V erbindungsstrukturen der Faserzellen von Special Connecting Structures between Fiber Cells of Trichoplax adhaerens  
 Abstract    In the prim itive m etazoan, Trichoplax adhaerens, the fiber cells are responsible for the change of shape. Electron m icroscopy reveals connections between protoplasm ic strands of neighbouring cells marked by an osm iophilic disc-like structure. P ossib le functions are discussed. 
  Reference    (Z. Naturforsch. 29c, 790 [1974]; eingegangen am 26. A ugust 1974) 
  Published    1974 
  Keywords    Electron M icroscopy, Trichoplax adhaerens, Connecting Structures, F iber Cells, Synapses 
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 TEI-XML for    default:Reihe_C/29/ZNC-1974-29c-0790_n.pdf 
 Identifier    ZNC-1974-29c-0790_n 
 Volume    29 
4Author    Helmut Meyer, Hanns-Georg KilianRequires cookie*
 Title    Stained Native Collagen: Interpretation of the Small Angle X-ray Scattering and Electron Microscopic Pictures in Terms of the Primary Structure  
 Abstract    The average axial electron-density distribution of stained collagen fibers derived from X-ray sm all angle pattern, is shown to be substantially related to the projection of the polar amino acid residues onto the axis of the m icrofibril taking into consideration the staggering of neighbouring molecules. In order to arrive ultim ately at a quantitative representation of the experim ental data, an additional periodic fluctuation of the density in necessity of this regular m icrophase structure for an of collagen fibers will be indicated . 
  Reference    Z. Naturforsch. 34c, 13 (1979); received July 24/November 3 1978 
  Published    1979 
  Keywords    Collagen, Amino Acid Sequence, Sm all Angle X-Ray Scattering, Electron M icroscopy 
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 TEI-XML for    default:Reihe_C/34/ZNC-1979-34c-0013.pdf 
 Identifier    ZNC-1979-34c-0013 
 Volume    34