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1975 (1)
1974 (1)
1Author    J. Iř, Ina Kopoldová, M. Ilan, V. Oráček-HübschRequires cookie*
 Title    Gamma-Radiolysis of Aqueous Solution of Proline  
 Abstract    Gamma-radiolysis of 0.05 M aqueous neutral proline solution was investigated. As the main reaction of proline radiolysis in oxygenated solutions, the hydroxylation reactions leading to hydroxyproline formation and the reactions leading to the total destruction of the pyrrolidine ring were shown. In oxygen-free solutions the yield of these reactions decreased; in this medium combination reactions giving rise to higher molecular weight combination products (up to approx. 1500) belong to the most important ones. In addition to radiation-decarboxylation reactions the products of radiation-carboxylation reactions were also detected in the irradiated solution of proline free of oxygen. 
  Reference    (Z. Naturforsch. 30c, 474—477 [1975]; received November 1 5 1974/February 261975) 
  Published    1975 
  Keywords    Gamma-Radiolysis, Aqueous Solution, Proline, Radiation 
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 TEI-XML for    default:Reihe_C/30/ZNC-1975-30c-0474.pdf 
 Identifier    ZNC-1975-30c-0474 
 Volume    30 
2Author    Wolfgang KöhnleinRequires cookie*
 Title    The Influence of Hydrogen Donors on Breakage of Parental DNA Strands and on Biological Activity of Transforming BrU-DNA of B. subtilis after 302/313 nm Radiation  
 Abstract    Long wavelength UV irradiation (302/313 nm) of hybrid and bifilarly labeled BrU-DNA of B. subtilis results in a degradation of the molecular weight of BrU and of parental thymine con­ taining DNA strands. Hydrogen donors present during UV irradiation are able to prevent these "primary" and "secondary" strand breaks. The protection factors are especially large for secondary breaks in parental normal DNA. Through the action of protective agents the biological activity could not be restored. The generation of these primary and secondary strand breaks due to BrU incorporation and the action of hydrogen donors discussed. 
  Reference    (Z. Naturforsch. 29c, 66 [1974]; received October 3/November 23 1973) 
  Published    1974 
  Keywords    BrU-DNA, Hydrogen-Donors, Strand Breaks, Transforming Activity, Radiation 
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 TEI-XML for    default:Reihe_C/29/ZNC-1974-29c-0066.pdf 
 Identifier    ZNC-1974-29c-0066 
 Volume    29