1. Entering the best years of life

   • Arnošt Kotyk

   Announcement Pages: 3 - 3

2. Some developments in the biosynthesis of antibiotics

   • R. Thomas

   Review Pages: 4 - 16

3. Stereochemistry of metabolism ofd- andl-amino acids

   • B. S. Axelsson
   • N. J. Church
   • D. W. Young

   Review Pages: 17 - 22

4. Metabolic design in the amino-acid-producing bacteriumCorynebacterium glutamicum

   • H. Sahm

   Review Pages: 23 - 30

5. Recent examples of novel secondary metabolites

   • A. G. Brown

   Review Pages: 31 - 42

6. Some aspects of overproduction of secondary metabolites

   • J. Spížek
   • P. Tichý

   Review Pages: 43 - 50

7. Differentiation and secondary metabolism in some prokaryotes and fungi

   • V. Betina

   Review Pages: 51 - 67

8. The cyclosporins

   • Z. Řeháček

   Review Pages: 68 - 88

9. Drug resistance inYarrowia lipolytica

   • D. Savická
   • L. Šilhánková

   Papers Pages: 89 - 94

10. Influence of bacteria on vesicular-arbuscular mycorrhizal infection of maize

    • M. Gryndler
    • H. Vejsadová
    • V. Čatská

    Papers Pages: 95 - 99

11. Effect ofAgrobacterium radiobacter on vesicular-arbuscular-mycorrhizal infection and external mycelium of maize

    • M. Vosátka
    • H. Vejsadová
    • H. Hršelová

    Papers Pages: 100 - 103

12. Effect of external pH on yield, morphology and cell components ofCandida utilis growing in continuous culture

    • J. Votruba
    • D. Vraná

    Papers Pages: 104 - 110

13. Pectinase production bySclerotium rolfsii: Effect of culture conditions

    • P. S. Channe
    • J. G. Shewale

    Papers Pages: 111 - 117

14. Immobilization of pectinase fromSclerotium rolfsii

    • P. S. Channe
    • J. G. Shewale

    Papers Pages: 118 - 122

15. The effect of chloroform-extractable secondary metabolites of filamentous fungi on the movement of respiratory tract cilia of one-day-old chicksin Vitro

    • E. Piecková
    • Z. Jesenská

    Papers Pages: 123 - 127

16. Book reviews

    • V. Šašek
    • J. Cudlín
    • V. Betina

    BookReview Pages: 128 - 128