1. Molecular biology of membrane-bound H₂ uptake hydrogenases

   • Paulette M. Vignais
   • Bertrand Toussaint

   Minireview Pages: 1 - 10

2. Regulation by ammonium and glucose of Arthrobacter fluorescens alanine dehydrogenase

   • Isabella Cacciari
   • Daniela Lippi
   • Tito Pietrosanti

   Original Papers Pages: 11 - 16

3. Spirochaeta caldaria sp. nov., a thermophilic bacterium that enhances cellulose degradation by Clostridium thermocellum

   • Mechthild Pohlschroeder
   • Susan B. Leschine
   • Ercole Canale-Parola

   Original Papers Pages: 17 - 24

4. Hydroquinone degradation via reductive dehydroxylation of gentisyl-CoA by a strictly anaerobic fermenting bacterium

   • Norbert Gorny
   • Bernhard Schink

   Original Papers Pages: 25 - 32

5. Pyruvate — a novel substrate for growth and methane formation in Methanosarcina barkeri

   • Anne-Katrin Bock
   • Angelika Prieger-Kraft
   • Peter Schönheit

   Original Papers Pages: 33 - 46

6. Purification and characterization of membrane-bound hydrogenase from Methanosarcina barkeri MS

   • John M. Kemner
   • J. Gregory Zeikus

   Original Papers Pages: 47 - 54

7. Role of sodium ions for sulfate transport and energy metabolism in Desulfovibrio salexigens

   • Bernd Kreke
   • Heribert Cypionka

   Original Papers Pages: 55 - 61

8. Characterization of a new thermophilic sulfate-reducing bacterium

   • E. A. Henry
   • R. Devereux
   • R. Mitchell

   Original Papers Pages: 62 - 69

9. Characterization of dihydropyrimidinase from Pseudomonas stutzeri

   • Guorong Xu
   • Thomas P. West

   Original Papers Pages: 70 - 74

10. Buffer-stimulated citrate efflux in Penicillium simplicissimum: an alternative charge balancing ion flow in case of reduced proton backflow?

    • Wolfgang Burgstaller
    • Angelo Zanella
    • Franz Schinner

    Original Papers Pages: 75 - 81

11. Biochemical studies on the lethal effects of solar and artificial ultraviolet radiation on Staphylococcus aureus

    • Wafa El-Adhami
    • Susan Daly
    • Peter R. Stewart

    Original Papers Pages: 82 - 87

12. Desulfurella multipotens sp. nov., a new sulfur-respiring thermophilic eubacterium from Raoul Island (Kermadec archipelago, New Zealand)

    • M. L. Miroshnichenko
    • G. A. Gongadze
    • E. A. Bonch-Osmolovskaya

    Original Papers Pages: 88 - 93

13. Degradation of food compounds and growth response on different food quality by the anaerobic ciliate Trimyema compressum

    • S. Holler
    • A. Gälle
    • N. Pfennig

    Original Papers Pages: 94 - 98