1. Gas vesicle formation in halophilic Archaea

   • F. Pfeifer
   • Kerstin Krüger
   • Sonja Offner

   Mini-review Pages: 259 - 268

2. Anaerobic mineralization of cholesterol by a novel type of denitrifying bacterium

   • J. Harder
   • Christina Probian

   Original paper Pages: 269 - 274

3. Purification and characterization of pyruvate:ferredoxin oxidoreductase from Hydrogenobacter thermophilus TK-6

   • Ki-Seok Yoon
   • Masaharu Ishii
   • Y. Igarashi

   Original paper Pages: 275 - 279

4. Efficient production of heat-labile enterotoxin mutant proteins by overexpression of dsbA in a degP-deficient Escherichia coli strain

   • C. Wülfing
   • R. Rappuoli

   Original paper Pages: 280 - 283

5. Genetic determination of polygalacturonase production in wild-type and laboratory strains of Saccharomyces cerevisiae

   • Pilar Blanco
   • Carmen Sieiro
   • Tomás G. Villa

   Original paper Pages: 284 - 288

6. Purification and characterization of phosphoenolpyruvate carboxykinase from the anaerobic ruminal bacterium Ruminococcus flavefaciens

   • L. Schöcke
   • P. J. Weimer

   Original paper Pages: 289 - 294

7. A novel membrane-bound flavocytochrome c sulfide dehydrogenase from the colourless sulfur bacterium Thiobacillus sp. W5

   • J. M. Visser
   • Govardus A. H. de Jong
   • J. Gijs Kuenen

   Original paper Pages: 295 - 301

8. Phylogeny and molecular fingerprinting of green sulfur bacteria

   • J. Overmann
   • Christian Tuschak

   Original paper Pages: 302 - 309

9. 1-Methoxypyrene and 1,6-dimethoxypyrene: two novel metabolites in fungal metabolism of polycyclic aromatic hydrocarbons

   • Thomas Wunder
   • Jens Marr
   • Heidrun Anke

   Original paper Pages: 310 - 316

10. Temperature-sensitive mutants of Corynebacterium ammoniagenes ATCC 6872 with a defective large subunit of the manganese-containing ribonucleotide reductase

    • C.-H. Luo
    • Jens Hansen
    • G. Auling

    Original paper Pages: 317 - 324