1. Nitrogen fixation and nitrogen metabolism in heliobacteria

   • Linda K. Kimble
   • Michael T. Madigan

   Original Papers Pages: 155 - 161

2. Microbial and biochemical characterization of a bacterial consortium isolated from decaying wood by growth on a β-O-4 lignin-related dimeric compound

   • Ricardo Céspedes
   • Loreto Salas
   • Rafael Vicuña

   Original Papers Pages: 162 - 170

3. Lipoamino acids and sulfonoplipids in Cytophaga johnsonae Stanier strain C21 and six related species of Cytophaga

   • Ryoh Kawazoe
   • Kenji Monde
   • Hidetoshi Okuyama

   Original Papers Pages: 171 - 175

4. Environmentally directed mutations in the dehalogenase system of Pseudomonas putida strain PP3

   • Andrew W. Thomas
   • Jay Lewington
   • J. Howard Slater

   Original Papers Pages: 176 - 182

5. Protonmotive force in freshwater sulfate-reducing bacteria, and its role in sulfate accumulation in Desulfobulbus propionicus

   • Bernd Kreke
   • Heribert Cypionka

   Original Papers Pages: 183 - 187

6. Maltose fermentation to acetate, CO₂ and H₂ in the anaerobic hyperthermophilic archaeon Pyrococcus furiosus: evidence for the operation of a novel sugar fermentation pathway

   • Thomas Schäfer
   • Peter Schönheit

   Original Papers Pages: 188 - 202

7. N⁶-(Δ²-Isopentenyl) adenine inhibits the alcohol dehydrogenase activity in cell-free extracts of Zymomonas mobilis

   • Pēteris Zikmanis
   • Ramona Krūće
   • Vasily Bankovsky

   Original Papers Pages: 203 - 207

8. N ⁵-Methyltetrahydromethanopterin: coenzyme M methyltransferase in methanogenic archaebacteria is a membrane protein

   • R. Fischer
   • P. Gärtner
   • R. K. Thauer

   Original Papers Pages: 208 - 217

9. Anerobic degradation of 1,2-propanediol by a new Desulfovibrio strain and D. alcoholovorans

   • A. S. Ouattara
   • N. Cuzin
   • J. -L. Garcia

   Original Papers Pages: 218 - 225

10. The cytochrome composition of the meat spoilage bacterium Brochothrix thermosphacta: identification of cytochrome a ₃- and d-type terminal oxidases under various conditions

    • Alicia Gil
    • Rohan G. Kroll
    • Robert K. Poole

    Original Papers Pages: 226 - 233