1. Methanocorpusculaceae fam. nov., represented by Methanocorpusculum parvum, Methanocorpusculum sinense spec. nov. and Methanocorpusculum bavaricum spec. nov.

   • G. Zellner
   • E. Stackebrandt
   • J. Winter

   Original Papers Pages: 381 - 390

2. A similar protein portion for two exoglucanases secreted by Saccharomyces cerevisiae

   • Manuel Ramírez
   • Luis M. Hernández
   • Germán Larriba

   Original Papers Pages: 391 - 398

3. Enrichment and isolation of Acetitomaculum ruminis, gen. nov., sp. nov.: acetogenic bacteria from the bovine rumen

   • R. C. Greening
   • J. A. Z. Leedle

   Original Papers Pages: 399 - 406

4. Geosmin production in the cyanobacterium Oscillatoria brevis

   • Helga Naes
   • H. C. Utkilen
   • A. F. Post

   Original Papers Pages: 407 - 410

5. Nontoxic and toxic oligopeptides with D-amino acids and unusual residues in Microcystis aeruginosa PCC 7806

   • I. M. Birk
   • R. Dierstein
   • J. Weckesser

   Original Papers Pages: 411 - 415

6. Localization of the carbohydrate residue of the S-layer glycoprotein from Clostridium thermohydrosulfuricum L111-69

   • Margit Sára
   • Seta Küpcü
   • Uwe B. Sleytr

   Original Papers Pages: 416 - 420

7. Sporomusa malonica sp. nov., a homoacetogenic bacterium growing by decarboxylation of malonate or succinate

   • Irmtraut Dehning
   • Marion Stieb
   • Bernhard Schink

   Original Papers Pages: 421 - 426

8. Malonomonas rubra gen. nov. sp. nov., a microaerotolerant anaerobic bacterium growing by decarboxylation of malonate

   • Irmtraut Dehning
   • Bernhard Schink

   Original Papers Pages: 427 - 433

9. N-15 in vivo NMR spectroscopic investigation of nitrogen deprived cell suspensions of the green alga Chlorella fusca

   • A. C. Kuesel
   • W. Kuhn
   • A. Mayer

   Original Papers Pages: 434 - 438

10. A primary respiratory Na⁺ pump of an anaerobic bacterium: the Na⁺-dependent NADH:quinone oxidoreductase of Klebsiella pneumoniae

    • Peter Dimroth
    • Anna Thomer

    Original Papers Pages: 439 - 444

11. Energy transduction efficiencies in nitrogenous oxide respirations of Azospirillum brasilense Sp7

    • Gerhard Danneberg
    • Wolfgang Zimmer
    • Hermann Bothe

    Original Papers Pages: 445 - 453

12. Construction of a physical map of the 45 kb photosynthetic gene cluster of Rhodobacter sphaeroides

    • S. A. Coomber
    • C. N. Hunter

    Original Papers Pages: 454 - 458

13. Methyltetrahydromethanopterin as an intermediate in methanogenesis from acetate in Methanosarcina barkeri

    • Reinhard Fischer
    • Rudolf K. Thauer

    Original Papers Pages: 459 - 465

14. Regulation of lysine decarboxylase activity in Escherichia coli K-12

    • Elizabeth A. Auger
    • George N. Bennett

    Short Communication Pages: 466 - 468