1. Dissimilation of the C₂ sulfonates

   • Alasdair M. Cook
   • Karin Denger

   Mini-Review Pages: 1 - 6

2. Regulation of formation of the intracellular β-gaiactosidase activity ofAspergillus nidulans

   • Erzsébet Fekete
   • Levente Karaffa
   • Christian P. Kubicek

   Original Paper Pages: 7 - 14

3. New genes involved in chromate resistance inRalstonia metallidurans strain CH34

   • Susanne Juhnke
   • Nicola Peitzsch
   • Dietrich H. Nies

   Original Paper Pages: 15 - 25

4. Biotin synthase ofBacillus subtilis shows less reactivity than that ofEscherichia coil in in vitro reaction systems

   • Tatsuya Kiyasu
   • Akira Asakura
   • Tatsuo Hoshino

   Original Paper Pages: 26 - 32

5. Enterobacter cloacae rpoS promoter and gene organization

   • Juana María Navarro-Lloréns
   • Esteban Martínez-García
   • Antonio Tormo

   Original Paper Pages: 33 - 41

6. Aempyrum pernix K1, a strictly aerobic and hyperthermophilic archaeon, has two terminal oxidases, cytochromeBa₃ and cytochromeaa₃

   • Ryuhei Ishikawa
   • Yoko Ishido
   • Takayoshi Wakagi

   Original Paper Pages: 42 - 49

7. Transport of molybdate in the cyanobacteriumAnabaena variabilis ATCC 29413

   • Teresa Thiel
   • Brenda Pratte
   • Marta Zahalak

   Original Paper Pages: 50 - 56

8. TheVibrio fischeri sapABCDF locus is required for normal growth, both in culture and in symbiosis

   • Claudia Lupp
   • Robert E. W. Hancock
   • Edward G. Ruby

   Original Paper Pages: 57 - 65

9. A possible role of poly-3-hydroxybuiyric acid in antibiotic production inStreptomyces

   • Shivani Verma
   • Yukti Bhatia
   • Ipsita Roy

   Short Communication Pages: 66 - 69

10. Properties of a laccase produced byPhanerochaete flavido-alba induced by vanillin

    • Teresa de la Rubia
    • Esteban Ruiz
    • José Martínez

    Short Communication Pages: 70 - 73