1. Influence of different inhibitors on the activity of theRAD54 dependent step of DNA repair inSaccharomyces cerevisiae

   • W. Siede
   • Sabine Obermaier
   • Friederike Eckardt

   OriginalPaper Pages: 1 - 7

2. Radiation induced formation of giant cells in Saccharomyces uvarum

   • Christa Baumstark-Khan
   • H. Rink
   • A. Wegener

   OriginalPaper Pages: 9 - 16

3. Activation of endogenous C-type retroviral genomes by internal alpha-irradiation of mice with²²⁴Radium

   • J. Schmidt
   • V. Erfle
   • W. A. Müller

   OriginalPaper Pages: 17 - 25

4. Micronucleus induction in mammalian cell cultures treated with ionizing radiations

   • U. Bertsche

   OriginalPaper Pages: 27 - 44

5. The reversion phenomenon in irradiated fern prothalli: Effects of acute or chronic anoxia and LET

   • J. H. Hendry
   • F. G. Cowie
   • K. -H. von Wangenheim

   OriginalPaper Pages: 45 - 56

6. The riboflavin-sensitized photooxidation of horseradish apoperoxidase

   • E. Silva
   • M. Barrera

   OriginalPaper Pages: 57 - 61

7. Study of a photo-induced lysozyme-riboflavin bond

   • I. Ferrer
   • E. Silva

   OriginalPaper Pages: 63 - 70

8. Energy-dependent effect of iodized contrast medium on radiation-induced chromosome aberrations

   • W. Hadnagy
   • A. Bäuml
   • G. Stephan

   Short Communications Pages: 71 - 74

9. Natural radioactivity in Indian tea

   • B. Y. Lalit
   • T. V. Ramachandran

   OriginalPaper Pages: 75 - 79

10. Hydrogen peroxide and hydroxyl radical formation by methylene blue in the presence of ascorbis acids

    • G. R. Buettner
    • T. P. Doherty
    • T. D. Bannister

    Erratum Pages: 80 - 80