1. Nitrogen limitation and recovery in the cyanobacterium Aphanocapsa 6308

   • Mary Mennes Allen
   • Frann Hutchison

   OriginalPaper Pages: 1 - 7

2. Glycocalyx of Agmenellum quadruplicatum

   • D. L. Balkwill
   • S. E. Stevens Jr.

   OriginalPaper Pages: 8 - 11

3. Chemical composition and ultrastructure of cellular and extracellular Moraxella glucidolytica lipopolysaccharides

   • Marc Horisberger
   • Eliane Dentan

   OriginalPaper Pages: 12 - 18

4. Substrate level versus oxidative phosphorylation in the generation of ATP in Thiobacillus denitrificans

   • M. Aminuddin

   OriginalPaper Pages: 19 - 25

5. Influence of manganese on morphology and cell wall composition of Aspergillus niger during citric acid fermentation

   • Monika Kisser
   • C. P. Kubicek
   • M. Röhr

   OriginalPaper Pages: 26 - 33

6. Effect of microtubule-disrupting drugs on protein and RNA synthesis in Physarum polycephalum amoebae

   • Victor A. Bernstam
   • Robert H. Gray
   • Isadore A. Bernstein

   OriginalPaper Pages: 34 - 40

7. Purification and initial characterization of phycobiliproteins from the endophytic cyanobacterium of Azolla

   • V. V. S. Tyagi
   • B. C. Mayne
   • G. A. Peters

   OriginalPaper Pages: 41 - 44

8. The killer phenomenon in Ustilago: Electron microscopy of the dsRNA encapsidated in individual virus particles

   • Y. Koltin
   • Rivka Steinlauf

   OriginalPaper Pages: 45 - 52

9. A chemotactic method for the isolation of Actinoplanaceae

   • Norberto J. Palleroni

   OriginalPaper Pages: 53 - 55

10. Autotrophic CO₂ fixation in Chlorobium limicola. Evidence against the operation of the Calvin cycle in growing cells

    • Georg Fuchs
    • Erhard Stupperich
    • Rolf Jaenchen

    OriginalPaper Pages: 56 - 63

11. Autotrophic CO₂ fixation in Chlorobium limicola. Evidence for the operation of a reductive tricarboxylic acid cycle in growing cells

    • Georg Fuchs
    • Erhard Stupperich
    • Gerolf Eden

    OriginalPaper Pages: 64 - 71

12. Glucose uptake by free living and bacteroid forms of Rhizobium leguminosarum

    • J. F. Hudman
    • A. R. Glenn

    OriginalPaper Pages: 72 - 77

13. Regulation of cephalosporin synthesis in Cephalosporium acremonium by phosphate and glucose

    • Martin T. Küenzi

    OriginalPaper Pages: 78 - 83

14. Efficiency of CO₂ fixation in a glycollate oxidoreductase mutant of Alcaligenes eutrophus which exports fixed carbon as glycollate

    • William R. King
    • Kjell Andersen

    OriginalPaper Pages: 84 - 90

15. Regulation of glucose catabolism in Thiobacillus A2 grown in the chemostat under dual limitation by succinate and glucose

    • Ann P. Wood
    • D. P. Kelly

    OriginalPaper Pages: 91 - 97

16. Messenger RNA for isocitrate lyase from Chlorella fusca var. vacuolata

    • Susan M. Dunham
    • C. F. Thurston

    OriginalPaper Pages: 98 - 104

17. Photomovement of the red alga Porphyridium cruentum (Ag.) Naegeli

    • Hartwig Schuchart

    OriginalPaper Pages: 105 - 112

18. Synchronization of DNA synthesis in Neurospora crassa by 2′-deoxyadenosine and spore selection

    • Margaret H. Fletcher
    • Anthony P. J. Trinci

    OriginalPaper Pages: 113 - 119

19. Isolation of monovalent sexual binding components from Chlamydomonas eugametos flagellar membranes

    • W. L. Homan
    • A. Musgrave
    • H. van den Ende

    OriginalPaper Pages: 120 - 125

20. Antigenic differences between Anabaena azollae fresh from the Azolla fern leaf cavity and free-living cyanobacteria

    • J. E. Gates
    • R. W. Fisher
    • N. I. Azrolan

    OriginalPaper Pages: 126 - 129