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'Filamentous Cyanobacterium' in keywords Facet   Publication Year 1996  [X]
Facet   section ZfN Section C:Volume 051  [X]
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1Author    K. Burda, P. He, K. P. Bader, G. H. SchmidRequires cookie*
 Title    Temperature Dependence of the 0 2-Oscillation Pattern in the Filamentous Cyanobacterium Oscillatoria chalybea and in Chlorella kessleri  
 Abstract    Five characteristic discontinuities of the pattern of oxygen evolution have been detected for the filamentous cyanobacterium Oscillatoria chalybea in the temperature range of 0°C to 30°C. The temperatures at which these discontinuities occur are: ~ 5°C, ~ 11°C, ~ 15°C, ~ 21°C and ~ 25°C. The calculated initial 5-S state distribution, the miss parameter and the fraction of the fast transition S3 —> S0 + 0 2 are affected. The discontinuities are observed at the same transition temperature also for Chlorella kessleri hence are not specific for the cyanobacterium. Based on these studies it is concluded that the not vanishing oxygen signal under the first flash of a flash train in Oscillatoria cannot have its origin in interactions between oxygen-evolving complexes. A decrease of temperature should slow down the ex­ pected charge exchanges, improve the oscillations, thus reduce or lower the first two oxygen amplitudes of the oscillatoria pattern. Lowering of the temperautres improves the oscillations but does not lower the first 0 2 signal of the pattern. 
  Reference    Z. Naturforsch. 51c, 823 (1996); received June 14/ 
  Published    1996 
  Keywords    0 2-Oscillation Pattern, Charge Exchange, Temperature D ependence, Filamentous Cyanobacterium 
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 TEI-XML for    default:Reihe_C/51/ZNC-1996-51c-0823.pdf 
 Identifier    ZNC-1996-51c-0823 
 Volume    51