1. Fungal metabolism and detoxification of polycyclic aromatic hydrocarbons

   • Carl E. Cerniglia
   • Gail L. White
   • Robert H. Heflich

   Original Papers Pages: 105 - 110

2. Immunoelectrophoretic approach to the metabolic regulation of glutamine synthetase in Rhodopseudomonas capsulata E1F1: role of glutamine

   • Francisco Romero
   • Francisco Javier Caballero
   • José Manuel Roldán

   Original Papers Pages: 111 - 116

3. A new cell wall structure in a symbiotic and a free-living strain of the blue-green alga genus Chroococcidiopsis (Pleurocapsales)

   • Burkhard Büdel
   • Erhard Rhiel

   Original Papers Pages: 117 - 121

4. Evolutionary implications of features of aromatic amino acid biosynthesis in the genus Acinetobacter

   • Graham S. Byng
   • Alan Berry
   • Roy A. Jensen

   Original Papers Pages: 122 - 129

5. Thermophilic anaerobic fermentation of hemicellulose and hemicellulose-derived aldose sugars by Thermoanaerobacter strain B6A

   • P. J. Weimer

   Original Papers Pages: 130 - 136

6. Growth, acetylene reduction activity and localization of nitrogenase in relation to vesicle formation in Frankia strains Cc1.17 and Cp1.2

   • T. M. Meesters
   • S. Th. van Genesen
   • A. D. L. Akkermans

   Original Papers Pages: 137 - 142

7. Regulation of β-exoglucanase activity production by Saccharomyces cerevisiae in batch and continuous culture

   • I. Olivero
   • L. M. Hernandez
   • G. Larriba

   Original Papers Pages: 143 - 146

8. Photoreactivation in Methanobacterium thermoautotrophicum

   • Andreas Kiener
   • Rolf Gall
   • Thomas Leisinger

   Original Papers Pages: 147 - 150

9. Bacitracin-resistant mutants of a mesophilic Methanobacterium species

   • Jane E. Harris
   • Patricia A. Pinn

   Original Papers Pages: 151 - 153

10. DNA-DNA and rRNA-DNA hybridization studies in the genus Ectothiorhodospira and other purple sulfur bacteria

    • T. L. Ivanova
    • T. P. Turova
    • A. S. Antonov

    Original Papers Pages: 154 - 156

11. A sodium-stimulated membrane-bound fumarate reductase system in Bacteroides amylophilus

    • Heinz-Georg Wetzstein
    • Gerhard Gottschalk

    Original Papers Pages: 157 - 162

12. The functional significance of glucose dehydrogenase in Klebsiella aerogenes

    • R. W. J. Hommes
    • B. van Hell
    • D. W. Tempest

    Original Papers Pages: 163 - 168

13. Mapping of some genes involved in C-1 metabolism in the facultative methylotroph Methylobacterium sp strain AM1 (Pseudomonas AM1)

    • P. K. Tatra
    • P. M. Goodwin

    Original Papers Pages: 169 - 177

14. The influence of poly-β-hydroxybutyrate accumulation on cell volume and buoyant density in alcaligenes eutrophus

    • Carlos Pedrós-Alió
    • Jordi Mas
    • Ricardo Guerrero

    Original Papers Pages: 178 - 184

15. Electron donation to nitrogenase in heterocysts of cyanobacteria

    • Gabriele Neuer
    • Hermann Bothe

    Original Papers Pages: 185 - 191

16. Occurrence of oscillations in ATP synthesis and hydrolysis in chromatophores of Rhodospirillum rubrum

    • Javier G. Fernández Velasco
    • Norma L. Pucheu
    • Augusto F. García

    Original Papers Pages: 192 - 195

17. Cyanide assimilation in Rhizobium ORS 571: influence of the nitrogenase catalyzed hydrogen production on the efficiency of growth

    • Hein Stam
    • Adriaan H. Stouthamer
    • Henk W. van Verseveld

    Original Papers Pages: 196 - 202

18. Growth with hydrogen, and further physiological characteristics of Desulfotomaculum species

    • Robert Klemps
    • Heribert Cypionka
    • Norbert Pfennig

    Original Papers Pages: 203 - 208