1. Hydrogen-stimulated CO₂ fixation and coordinate induction of hydrogenase and ribulosebiphosphate carboxylase in a H₂-uptake positive strain of Rhizobium japonicum

   • Frank B. Simpson
   • Robert J. Maier
   • Harold J. Evans

   OriginalPaper Pages: 1 - 8

2. Changes in sporulation potential during the growth cycle of Bacillus subtilis

   • Naomi Sandler
   • Alex Keynan

   OriginalPaper Pages: 9 - 14

3. Control of ribonucleotide reductase in Synechococcus Sp., a unicellular cyanobacterium

   • Florence Kowalczyk Gleason

   OriginalPaper Pages: 15 - 21

4. Vacuoles: The sole compartments of digestive enzymes in yeast (Saccharomyces cerevisiae)?

   • A. Wiemken
   • M. Schellenberg
   • K. Urech

   OriginalPaper Pages: 23 - 35

5. Modes of electron transfer from molecular hydrogen in Anabaena cylindrica

   • G. Eisbrenner
   • H. Bothe

   OriginalPaper Pages: 37 - 45

6. Regulation of autotrophic and heterotrophic metabolism in Pseudomonas oxalaticus OX1: Growth on mixtures of acetate and formate in continuous culture

   • L. Dijkhuizen
   • W. Harder

   OriginalPaper Pages: 47 - 53

7. Regulation of autotrophic and heterotrophic metabolism in Pseudomonas oxalaticus OX1: Growth on mixtures of oxalate and formate in continuous culture

   • L. Dijkhuizen
   • W. Harder

   OriginalPaper Pages: 55 - 63

8. Photooxidase activity of isolated chromatophores and intact cells of phototrophic bacteria

   • Valentin G. Remennikov
   • Vitaly D. Samuilov

   OriginalPaper Pages: 65 - 71

9. Manganese deficiency leads to elevated amino acid pools in citric acid accumulating Aspergillus niger

   • C. P. Kubicek
   • W. Hampel
   • M. Röhr

   OriginalPaper Pages: 73 - 79

10. Evidence for two functionally distinct hydrogenases in Anacystis nidulans

    • Günter A. Peschek

    OriginalPaper Pages: 81 - 92

11. Effect of external factors on phototaxis of Chlamydomonas reinhardtii

    • Wilhelm Nultsch

    OriginalPaper Pages: 93 - 99

12. Bdellovibrio-like parasite of cyanobacteria symbiotic in marine sponges

    • Clive R. Wilkinson

    Short Communications Pages: 101 - 103

13. Nickel, cobalt, and molybdenum requirement for growth of Methanobacterium thermoautotrophicum

    • Peter Schönheit
    • Johanna Moll
    • Rudolf K. Thauer

    Short Communications Pages: 105 - 107