1. Regulation of nitrogen-fixation by different nitrogen sources in the marine non-heterocystous cyanobacterium Trichodesmium sp. NIBB1067

   • Kaori Ohki
   • Jonathan P. Zehr
   • Yoshihiko Fujita

   Original Papers Pages: 335 - 337

2. Purification of ribulose 1,5-bisphosphate carboxylase/oxygenase and of carboxysomes from Thiobacillus thyasiris the putative symbiont of Thyasira flexuosa (Montagu)

   • Tom Lanaras
   • Catherine M. Cook
   • Geoffrey A. Codd

   Original Papers Pages: 338 - 343

3. Cytological peculiarities of some extremely halophilic soil archaeobacteria

   • N. A. Kostrikina
   • I. S. Zvyagintseva
   • V. I. Duda

   Original Papers Pages: 344 - 349

4. Intracellular salt and solute concentrations in Ectothiorhodospira marismortui: glycine betaine and Nα-carbamoyl glutamineamide as osmotic solutes

   • Aharon Oren
   • Gilat Simon
   • Erwin A. Galinski

   Original Papers Pages: 350 - 355

5. Acetate as a source of reducing equivalents in the reductive dechlorination of 2,5-dichlorobenzoate

   • Jan Dolfing
   • James M. Tiedje

   Original Papers Pages: 356 - 361

6. ATPase activity and anion transport across the peribacteroid membrane of isolated soybean symbiosomes

   • Michael K. Udvardi
   • Diane L. Lister
   • David A. Day

   Original Papers Pages: 362 - 366

7. Interrelationship between hydrogen peroxide, ammonia, glutamine, hydroxylamine and nitrite metabolism in the cyanobacterium Phormidium uncinatum

   • S. N. Bagchi
   • D. Kleiner

   Original Papers Pages: 367 - 369

8. Influence of salt concentration and temperature on the fatty acid compositions of Ectothiorhodospira and other halophilic phototrophic purple bacteria

   • Johannes F. Imhoff
   • Bernhard Thiemann

   Original Papers Pages: 370 - 375

9. The effect of salt on the lipid composition of Ectothiorhodospira

   • Bernhard Thiemann
   • Johannes F. Imhoff

   Original Papers Pages: 376 - 384

10. Evidence for two uptake systems in Rhizobium leguminosarum for hydroxy-aromatic compounds metabolized by the 3-oxoadipate pathway

    • C. M. Wong
    • M. J. Dilworth
    • A. R. Glenn

    Original Papers Pages: 385 - 391

11. Fermentative degradation of glyoxylate by a new strictly anaerobic bacterium

    • Michael Friedrich
    • Bernhard Schink

    Original Papers Pages: 392 - 397

12. Fermentative degradation of glycolic acid by defined syntrophic cocultures

    • Michael Friedrich
    • Ute Laderer
    • Bernhard Schink

    Original Papers Pages: 398 - 404

13. Biochemical and spectroscopic analysis of UV effects in the marine flagellate Cryptomonas maculata

    • Ilse Zündorf
    • Donat-P. Häder

    Original Papers Pages: 405 - 411

14. Dimorphism-associated changes in plasma membrane H⁺-ATPase activity of Candida albicans

    • Simminder Kaur
    • Prashant Mishra

    Original Papers Pages: 412 - 415

15. Isolation and characterization of a methyl chloride utilizing, strictly anaerobic bacterium

    • Jürgen Traunecker
    • Andrea Preuß
    • Gabriele Diekert

    Original Papers Pages: 416 - 421

16. Purification and characterization of ferredoxin from Peptostreptococcus productus (strain Marburg)

    • Ulrike Reubelt
    • Gert Wohlfarth
    • Gabriele Diekert

    Original Papers Pages: 422 - 426

17. N ⁵,N ¹⁰-Methylenetetrahydromethanopterin reductase (coenzyme F₄₂₀-dependent) and formylmethanofuran dehydrogenase from the hyperthermophile Archaeoglobus fulgidus

    • R. A. Schmitz
    • D. Linder
    • R. K. Thauer

    Original Papers Pages: 427 - 434