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'membranes' in keywords Facet   Publication Year 1984  [X]
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1Author    Gottfried Küppers, Karl-Josef Diederich, Ulrich ZimRequires cookie*
 Title    Cell Fusion by Simulated Atmospheric Discharges: Further Support for the Hypothesis of Involvement of Electrofusion in Evolution  
 Abstract    Electrofusion of mesophyll cell protoplasts of Avena sativa was induced by simulated atmospheric discharges. It is shown both experimentally and theoretically that the potential differences which occur at quite long distances from the point of lightning stroke are large enough to induce fusion. Besides electromagnetic waves which are emitted during lightning (G. Küppers and U. Zimmermann, FEBS Lett. 164, 323 (1983)) cell fusion may have also occurred directly by means of the voltage built-up on the earth during evolution in response to a lightning stroke. 
  Reference    Z. Naturforsch. 39c, 973—980 (1984); received June 5 1984 
  Published    1984 
  Keywords    Electrofusion, Atmospheric Discharge, Step Voltage, Evolution, Membrane, Protoplasts 
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 TEI-XML for    default:Reihe_C/39/ZNC-1984-39c-0973.pdf 
 Identifier    ZNC-1984-39c-0973 
 Volume    39 
2Author    Akira Taketo, Yoriko TaketoRequires cookie*
 Title    Effects of Membrane-Acting Drugs and Aerobiosis on Production of Streptolysin S and Nuclease in Hemolytic Streptococci  
 Abstract    Yield of streptolysin S (SLS) in streptococcal culture was considerably reduced by procaine, dibucaine, atropine or chlorpromazine at concentrations which scarecely affected production of an extracellular nuclease as well as the bacterial growth. Cerulenin was also inhibitory to SLS formation, but its effect was more pronounced on the nuclease production. By aerobiosis, amount of SLS produced into culture supernatant was increased significantly, whereas yield of the nuclease was rather unaffected. 
  Reference    Z. Naturforsch. 39c, 1128—1131 (1984); received August 14 1984 
  Published    1984 
  Keywords    Streptolysin S, Nuclease, Membrane, Aerobiosis, Streptococci 
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 TEI-XML for    default:Reihe_C/39/ZNC-1984-39c-1128.pdf 
 Identifier    ZNC-1984-39c-1128 
 Volume    39