1. Restriction endonuclease analysis of plastid DNA from tomato, potato and some of their somatic hybrids

   • Barbara Schiller
   • R. G. Herrmann
   • G. Melchers

   OriginalPaper Pages: 453 - 459

2. Coliphage 434 tofprotein: NH₂-terminal amino acid sequence and kinetic and equilibrium measurements of DNA binding

   • Junko Aono
   • Kenji Kangawa
   • Tadao Horiuchi

   OriginalPaper Pages: 460 - 466

3. Effect of halogenated pyrimidine 5′-mononucleotides on dTMP-permeable yeast strains and the isolation and characterization of resistant mutants

   • Linda F. Bisson
   • Jeremy Thorner

   OriginalPaper Pages: 467 - 474

4. A sensitive radioimmuno assay for thymine dimers

   • Helmut Klocker
   • Bernhard Auer
   • Manfred Schweiger

   OriginalPaper Pages: 475 - 477

5. cdc7-1 A temperature sensitive cell-cycle mutant which interferes with induced mutagenesis in Saccharomyces cerevisiae

   • G. D. E. Njagi
   • B. J. Kilbey

   OriginalPaper Pages: 478 - 481

6. Negative control of orinithine decarboxylase and arginine decarboxylase by adenosine-3′:5′-Cyclic monophosphate in Escherichia coli

   • Jonathan M. Wright
   • Stephen M. Boyle

   OriginalPaper Pages: 482 - 487

7. The Escherichia coli dnaW mutation is an allele of the adk gene

   • Joan M. Henson
   • Aleksandra Blinkowa
   • James R. Walker

   OriginalPaper Pages: 488 - 492

8. STRAIN, a computer program for storing information about bacterial strains

   • Katsumi Isono

   OriginalPaper Pages: 493 - 496

9. Mechanism of pBR322 transduction mediated by cytosine-substituting T4 bacteriophage

   • Hideo Takahashi
   • Hiuga Saito

   OriginalPaper Pages: 497 - 500

10. Mitochondrial and nuclear myxothiazol resistance in Saccharomyces cerevisiae

    • Georg Thierbach
    • Georg Michaelis

    OriginalPaper Pages: 501 - 506

11. Cloning and expression of a Bacillus coagulans amylase gene in Escherichia coli

    • Pierre Cornelis
    • Colette Digneffe
    • Karine Willemot

    OriginalPaper Pages: 507 - 511

12. X-ray enhances mating type switching in heterothallic strains of Saccharomyces cerevisiae

    • Robert Schiestl
    • Ulrike Wintersberger

    OriginalPaper Pages: 512 - 517

13. Cloning of the glnA, ntrB and ntrC genes of Klebsiella pneumoniae and studies of their role in regulation of the nitrogen fixation (nif) gene cluster

    • Guadalupe Espin
    • Ariel Alvarez-Morales
    • Mike Merrick

    OriginalPaper Pages: 518 - 524

14. Localization of wheat chloroplast genes for the beta and epsilon subunits of ATP synthase

    • Christopher J. Howe
    • Catherine M. Bowman
    • John C. Gray

    OriginalPaper Pages: 525 - 530

15. Maintenance of the bacteriocinogenic plasmid clo DF13 in Escherichia coli cells

    • Marcel J. J. Hakkaart
    • John G. Wesseling
    • H. John J. Nijkamp

    OriginalPaper Pages: 531 - 539

16. Only one gene is required for the glpT-dependent transport of sn-glycerol-3-phosphate in Escherichia coli

    • Douglas Ludtke
    • Timothy J. Larson
    • Winfried Boos

    OriginalPaper Pages: 540 - 547

17. Nucleotide sequence analysis of in vivo recombinants between bacteriophage λ DNA and pBR322

    • Steven R. King
    • Michael A. Krolewski
    • S. Richard Jaskunas

    OriginalPaper Pages: 548 - 557

18. Physical evidence for the temporal transition of transcription in bacteriophage λ

    • Lorne F. Erdile
    • Maria Schnös
    • Ross B. Inman

    OriginalPaper Pages: 558 - 565

19. Ribosomal proteins of sea urchin eggs

    • Kazuhito Takeshima
    • Eizo Nakano

    Short Communication Pages: 566 - 568

20. The polar effect on nifM of mutations in the nifU,-S,-V genes of Klebsiella pneumoniae depends on their plasmid or chromosomal location

    • Lionel Sibold

    Short Communication Pages: 569 - 571

21. Changed properties of the A subunit in DNA gyrase with a B subunit mutation

    • E. S. Bogdanova
    • S. M. Mirkin
    • Zh. G. Shmerling

    Short Communication Pages: 572 - 574