1. Methanothrix soehngenii gen. nov. sp. nov., a new acetotrophic non-hydrogen-oxidizing methane bacterium

   • Beat A. Huser
   • Karl Wuhrmann
   • Alexander J. B. Zehnder

   Original Papers Pages: 1 - 9

2. Comparative studies onChlorella cell walls: Induction of protoplast formation

   • Takashi Yamada
   • Kenji Sakaguchi

   Original Papers Pages: 10 - 13

3. Bioalteration of Kraft pine lignin byPhanerochaete chrysosporium

   • H. Janshekar
   • C. Brown
   • A. Fiechter

   Original Papers Pages: 14 - 21

4. The mechanism of growth inhibition by threonine inEuglena gracilis: Regulation of isoleucine-valine biosynthesis by 2-oxobutyrate

   • Yuji Oda
   • Yoshihisa Nakano
   • Shozaburo Kitaoka

   Original Papers Pages: 22 - 25

5. Plasmid-mediated nicotine degradation inArthrobacter oxidans

   • Roderich Brandsch
   • Ari E. Hinkkanen
   • Karl Decker

   Original Papers Pages: 26 - 30

6. Methanoplanus limicola, a plate-shaped methanogen representing a novel family, the methanoplanaceae

   • Gertrud Wildgruber
   • Michael Thomm
   • Karl O. Stetter

   Original Papers Pages: 31 - 36

7. Methylamine, an inhibitor of ammonium oxidation and chemoautotrophic growth in the marine nitrifying bacteriumNitrosococcus oceanus

   • Hilary E. Glover

   Original Papers Pages: 37 - 40

8. Utilization of traces of carbon monoxide by aerobic oligotrophic microorganisms in ocean, lake and soil

   • Ralf Conrad
   • Wolfgang Seiler

   Original Papers Pages: 41 - 46

9. Methanococcus thermolithotrophicus, a novel thermophilic lithotrophic methanogen

   • Harald Huber
   • Michael Thomm
   • Karl O. Stetter

   Original Papers Pages: 47 - 50

10. Enhancement of specific nitrogenase activity inAzospirillum brasilense andKlebsiella pneumoniae, inhibition inRhizobium japonicum under air by phenol

    • Dietrich Werner
    • Arno Krotzky
    • Marianne Preiß

    Original Papers Pages: 51 - 56

11. Organic acid utilization, succinate excretion, encystation and oscillating nitrogenase activity inAzospirillum brasilense under microaerobic conditions

    • Hans Papen
    • Dietrich Werner

    Original Papers Pages: 57 - 61

12. Dissimilatory nitrate reduction by a strain ofClostridium butyricum isolated from estuarine sediments

    • S. M. Keith
    • G. T. MacFarlane
    • R. A. Herbert

    Original Papers Pages: 62 - 66

13. Phosphoenolpyruvate synthetase inMethanobacterium thermoautotrophicum

    • Jaime Eyzaguirre
    • Kathrin Jansen
    • Georg Fuchs

    Original Papers Pages: 67 - 74

14. Phenotypic variations in re-lysogenization ofBacillus licheniformis with temperate phage

    • Tadayuki Imanaka
    • Kohji Uchida
    • Shuichi Aiba

    Original Papers Pages: 75 - 78

15. Evidence for an ammonium transport system in the N₂-fixing phototrophic bacteriumRhodospirillum rubrum

    • Kassem Alef
    • Diethelm Kleiner

    Original Papers Pages: 79 - 81

16. H₂-Photoproduction by green algae: The significance of anaerobic pre-incubation periods and of high light intensities for H₂-photoproductivity ofChlorella fusca

    • Bernd Mahro
    • L. Horst Grimme

    Original Papers Pages: 82 - 86

17. Biosynthesis of hexamannophosphoinositides inMycobacterium smegmatis ATCC 607

    • P. Nalini
    • G. K. Khuller

    Original Papers Pages: 87 - 90

18. Stimulation of the anaerobic growth ofSalmonella typhimurium by reduction ofl-carnitine, carnitine derivatives and structure-related trimethylammonium compounds

    • Hermann Seim
    • Heinz Löster
    • Erich Strack

    Original Papers Pages: 91 - 95

19. Continuous culture and synchronization ofHyphomicrobium sp. B-522

    • N. Matzen
    • P. Hirsch

    Short Communications Pages: 96 - 99

20. Biosynthesis of methyl chloride in the fungusPhellinus pomaceus

    • Robert H. White

    Short Communications Pages: 100 - 102