1. Effects of rifampicin on synthesis and functional activity of DNA-dependent RNA polymerase in Escherichia coli

   • Yoshikazu Nakamura
   • Takashi Yura

   OriginalPaper Pages: 227 - 237

2. Differentiation in calli originated from isolated protoplasts of rice (Oryza sativa L.) through plating technique

   • Pradip C. Deka
   • S. K. Sen

   OriginalPaper Pages: 239 - 243

3. Protoplast regeneration and stem embryogenesis of haploid androgenetic rape

   • Emrys Thomas
   • Franz Hoffmann
   • Gerhard Wenzel

   OriginalPaper Pages: 245 - 247

4. Mitochondrial genetic damage induced in yeast by a photoactivated furocoumarin in combination with ethidium bromide or ultraviolet light

   • M. H. Juliani
   • S. Hixon
   • E. Moustacchi

   OriginalPaper Pages: 249 - 254

5. Increase of rDNA redundancy in bb females of Drosophila melanogaster

   • S. Gargano
   • F. Graziani

   OriginalPaper Pages: 255 - 258

6. Fine structure of the URA2 locus in Saccharomyces cerevisiae

   • Michèle Denis-Duphil
   • J. G. Kaplan

   OriginalPaper Pages: 259 - 271

7. Replication of small plasmids in extracts of Escherichia coli

   • Walter L. Staudenbauer

   OriginalPaper Pages: 273 - 280

8. The genetic instabilities of the mating type locus in fission yeast

   • Richard Egel

   OriginalPaper Pages: 281 - 286

9. Division delay and DNA degradation after mutagen treatment of the yeast, Saccharomyces cerevisiae

   • P. J. Wilmore
   • James M. Parry

   OriginalPaper Pages: 287 - 291

10. Macromolecular synthesis after a nutritional shift-up of Bacillus subtilis

    • Shungo Murakami
    • Seishi Murakami
    • Hiroshi Yoshikawa

    OriginalPaper Pages: 293 - 302

11. Expression of the plasmid pKM101-determined DNA repair system in recA ⁻ and lex ⁻ strains of Escherichia coli

    • C. Monti-Bragadin
    • N. Babudri
    • L. Samer

    OriginalPaper Pages: 303 - 306

12. A procedure for specifically selecting temperature sensitive mutants of tobacco mosaic virus

    • W. O. Dawson
    • G. E. Jones

    OriginalPaper Pages: 307 - 309

13. Peptide analysis of RNA polymerase α subunit from Escherichia coli: Comparison of free with assembled form

    • Makoto Taketo
    • Akira Ishihama
    • Syozo Osawa

    OriginalPaper Pages: 311 - 316

14. The influence of mutations upon the synthesis of RNA polymerase subunits in Escherichia coli cells

    • A. D. Dmitriev
    • O. N. Danilevskaya
    • R. B. Khesin

    OriginalPaper Pages: 317 - 326

15. Cis-dominant regulatory mutations affecting the formation of glucose-repressible alcohol dehydrogenase (ADHII) in Saccharomyces cerevisiae

    • M. Ciriacy

    OriginalPaper Pages: 327 - 333

16. Erratum

    • Nigel D. F. Grindley
    • William S. Kelley

    Erratum Pages: 335 - 335