1. Immunomodulators isolated from microorganisms

   • Z. Vaněk
   • J. Matějů
   • E. Čurdová

   Review Pages: 99 - 111

2. The immunosuppressive effects of bilirubin

   • V. Větvička
   • P. Šíma
   • M. Bilej

   Review Pages: 112 - 119

3. Isolation of DNA-dependent RNA polymerase fromStreptomyces granaticolor and its binding to phage ϕ29 DNA

   • J. Ŝmardová
   • J. Felsberg
   • J. Spížek

   Papers Pages: 120 - 126

4. Expression of virulence and antibiotic resistance in anEscherichia coli transconjugant carrying a large plasmid pCAT120 ofShigella dysenteriae type I and its spontaneous fragmentations

   • D. Biswas
   • S. Datta
   • R. Kumar

   Papers Pages: 127 - 135

5. Determination of nitrate by conversion to nitrite usingParacoccus denitrificans

   • I. Maťchová
   • I. Černá
   • I. Kučera

   Papers Pages: 136 - 140

6. Identity of the antibiotic ramihyphin A and cyclosporin A

   • B. Proksa
   • D. Uhrín
   • V. Betina

   Papers Pages: 141 - 143

7. Composition of intracellular soluble proteins inMycobacterium “rubrum” and its mutants

   • G. Y. Daraselia
   • N. Gagelidze
   • L. Amiranashvili

   Papers Pages: 144 - 147

8. Sterol composition of nystatin-resistantCandida maltosa mutants

   • N. P. Mikhailova
   • E. F. Sorokoletova
   • O. I. Shapovalov

   Papers Pages: 148 - 152

9. Formation and reversion ofSchizosaccharomyces pombe cells with apical protoplast protuberances

   • Z. Zemanová
   • I. Pavlíček
   • V. Vondrejs

   Papers Pages: 153 - 157

10. Characterization of catalase-negative mutants of methylotrophic yeastHansenula polymorpha

    • L. R. Aminova
    • E. Kyslíková
    • Y. A. Trotsenko

    Papers Pages: 158 - 163

11. Production of Tsr factor byRhizobium meliloti

    • V. Jain
    • N. Garg
    • H. S. Nainawatee

    Papers Pages: 164 - 168

12. Transformation of virulence factor among bacterial blight ofXanthomonas campestris pv.malvacearum in plants

    • S. G. Borkar
    • J. P. Verma

    Papers Pages: 169 - 172

13. Inhibition of susceptible water soaking and/or hypersensitive reaction in cotton by exopolysaccharide of avirulentXanthomonas campestris pv.malvacearum

    • S. G. Borkar
    • J. P. Verma

    Papers Pages: 173 - 176

14. Rhizobium leguminosarum strains forming nitrogen-rich nodules inPisum sativum

    • V. Škrdleta
    • M. Němcová
    • K. Novák

    Papers Pages: 177 - 182

15. Informative value of a mouse model ofKlebsiella pneumoniae infection used as a host-resistance assay

    • J. Malina
    • J. Hofmann
    • J. Franěk

    Papers Pages: 183 - 191

16. Bacterial endotoxins: Comparison of mitogenic, polyclonal, antibody-inducing and toxicity activities

    • J. Ŝourek
    • M. Svobodová
    • K. Nouza

    Papers Pages: 192 - 197

17. The immunoadjuvant effect of soluble glucan derivatives in mice

    • J. Wagnerová
    • A. Líšková
    • M. Ferenčík

    Papers Pages: 198 - 204

18. Book reviews

    • J. Hochmannová
    • V. Větvička
    • J. Cudlín

    BookReview Pages: 205 - 207