1. Systems and mechanisms of amino acid uptake and excretion in prokaryotes

   • Reinhard Krämer

   Mini-Review Pages: 1 - 13

2. Identification of two different glyceraldehyde-3-phosphate dehydrogenases (phosphorylating) in the photosynthetic protist Cyanophora paradoxa

   • Aurelio Serrano
   • Wolfgang Löffelhardt

   Original Paper Pages: 14 - 19

3. Germination of desiccated aged akinetes of alkaliphilic cyanobacteria

   • Claudio Sili
   • Alba Ena
   • Massimo Vincenzini

   Original Paper Pages: 20 - 25

4. Regulation and function of ferredoxin-linked versus cytochrome b-linked hydrogenase in electron transfer and energy metabolism of Methanosarcina barkeri MS

   • John M. Kemner
   • Gregory Zeikus

   Original Paper Pages: 26 - 32

5. Characterization of a major cell wall antigen and potential adhesin in three strains of Candida albicans

   • Wheamei Jenq
   • Chi Lan Chen
   • Richard F. E. Crang

   Original Paper Pages: 33 - 40

6. Effect of low-nutrient seawater on morphology, chemical composition, and virulence of Salmonella typhimurium

   • Emilia Galdiereo
   • Giovanna Donnarumma
   • Angela Merone

   Original Paper Pages: 41 - 47

7. Purification and characterization of a cytoplasmic enzyme component of the Na⁺-activated malonate decarboxylase system of Malonomonas rubra: acetyl-S-acyl carrier protein: malonate acyl carrier protein-SH transferase

   • Hubert Hilbi
   • Peter Dimroth

   Original Paper Pages: 48 - 56

8. The induction and repression of benzene and catechol oxidizing capacity of Pseudomonas putida ML2 studied in perturbed chemostat culture

   • Jeremy R. Mason

   Original Paper Pages: 57 - 62

9. Fermentation in the unicellular cyanobacterium Microcystis PCC7806

   • Roy Moezelaar
   • Lucas J. Stal

   Original Paper Pages: 63 - 69

10. Mesophilic syntrophic acetate oxidation during methane formation by a triculture at high ammonium concentration

    • Anna Schnürer
    • Frans P. Houwen
    • Bo H. Svensson

    Original Paper Pages: 70 - 74

11. Control of the pyrimidine biosynthetic pathway in Pseudomonas pseudoalcaligenes

    • Thomas P. West

    Original Paper Pages: 75 - 79

12. Cyclic variations of photosynthetic activity under nitrogen fixing conditions in Synchococcus RF-1

    • Regina Rojek
    • Claudia Harms
    • L. Horst Grimme

    Original Paper Pages: 80 - 84

13. Holophaga foetida gen. nov., sp. nov., a new, homoacetogenic bacterium degrading methoxylated aromatic compounds

    • Werner Liesack
    • Friedhelm Bak
    • E. Stackebrandt

    Original Paper Pages: 85 - 90

14. 23S rRNA processing in Rhodobacter capsulatus is not involved in the oxygen-regulated formation of the bacterial photosynthetic apparatus

    • Gabriele Klug
    • Susanne Jock
    • Elisabeth Kordes

    Original Paper Pages: 91 - 97

15. Purification of amoebolytic substances from Bacillus licheniformis M-4

    • Mariam Lebbadi
    • Antonio Gálvez
    • Mercedes Maqueda

    Original Paper Pages: 98 - 102

16. Fermentative degradation of triethanolamine by a homoacetogenic bacterium

    • Joachim Frings
    • Christine Wondrak
    • Bernhard Schink

    Original Paper Pages: 103 - 107

17. Xerotolerance in fission yeasts and the role of glycerol as compatible solute

    • Benjamin P. Ganthala
    • John H. Marshall
    • John W. May

    Original Paper Pages: 108 - 113

18. Leucine interference in the production of water-soluble red Monascus pigments

    • T. F. Lin
    • A. L. Demain

    Original Paper Pages: 114 - 119

19. Synthesis of trans unsaturated fatty acids in Pseudomonas putida P8 by direct isomerization of the double bond of lipids

    • Ruth Diefenbach
    • Heribert Keweloh

    Original Paper Pages: 120 - 125

20. Physiological role of tyrosine transport systems in Halobacterium salinarium

    • L. B. Lobyreva
    • M. V. Kokoeva
    • V. K. Plakunov

    Original Paper Pages: 126 - 130

21. Complete anaerobic oxidation of hydroquinone by Desulfococcus sp. strain Hy5: indications of hydroquinone carboxylation to gentisate

    • Norbert Gorny
    • Bernhard Schink

    Original Paper Pages: 131 - 135

22. Evidence of reversed electron transport in syntrophic butyrate or benzoate oxidation by Syntrophomonas wolfei and Syntrophus buswellii

    • Christina Wallrabenstein
    • Bernhard Schink

    Original Paper Pages: 136 - 142

23. Effects of tungstate on the growth of Desulfovibrio gigas NCIMB 9332 and other sulfate-reducing bacteria with ethanol as a substrate

    • Charles M. H. Hensgens
    • Manny E. Nienhuis-Kuiper
    • Theo A. Hansen

    Original Paper Pages: 143 - 147

24. Identification of a periplasmic dimethylsulphoxide reductase in Hyphomicrobium EG grown under chemolithoheterotrophic conditions with dimethylsulphoxide as carbon source

    • Angela D. Hatton
    • Gill Malin
    • Alastair G. McEwan

    Short Communication Pages: 148 - 150

25. Purification and characterization of a cytoplasmic enzyme component of the Na+-activated malonate decarboxylase system of Malonomonas rubra: acetyl-S-acyl carrier protein: malonate acyl carrier protein-SH transferase

    • H. Hilbi
    • P. Dimroth

    Original paper Pages: 48 - 56

26. Synthesis of trans unsaturated fatty acids in Pseudomonas putida P8 by direct isomerization of the double bond of lipids

    • Ruth Diefenbach
    • H. Keweloh

    Original paper Pages: 120 - 125