1. Biochemical and physiological characteristics of Xenorhabdus species, symbiotically associated with entomopathogenic nematodes including Steinernema kushidai and their pathogenicity against Spodoptera litura (Lepidoptera: Noctuidae)

   • Satoshi Yamanaka
   • Akiko Hagiwara
   • Nobuyoshi Ishibashi

   Original Papers Pages: 387 - 393

2. Identification of sulphate-reducing ectosymbiotic bacteria from anaerobic ciliates using 16S rRNA binding oligonucleotide probes

   • T. Fenchel
   • N. B. Ramsing

   Original Papers Pages: 394 - 397

3. Silver accumulation and resistance in Pseudomonas stutzeri

   • Robin M. Slawson
   • Jack T. Trevors
   • Hung Lee

   Original Papers Pages: 398 - 404

4. Enantioselective hydrolysis of O-acetylmandelonitrile to O-acetylmandelic acid by bacterial nitrilases

   • Norman Layh
   • Andreas Stolz
   • Hans-Joachim Knackmuss

   Original Papers Pages: 405 - 411

5. Maleylacetate reductase of Pseudomonas sp. strain B13: dechlorination of chloromaleylacetates, metabolites in the degradation of chloroaromatic compounds

   • Stefan R. Kaschabek
   • Walter Reineke

   Original Papers Pages: 412 - 417

6. Formation of thionates by freshwater and marine strains of sulfate-reducing bacteria

   • H. Sass
   • J. Steuber
   • H. Cypionka

   Original Papers Pages: 418 - 421

7. Induction and modification of dinitrogenase reductase in the unicellular cyanobacterium Synechocystis BO 8402

   • Susanne Brass
   • Anneliese Ernst
   • Peter Böger

   Original Papers Pages: 422 - 428

8. Selection and characterization of mutants of the cyanobacterium Synechocystis sp. PCC 6803 unable to tolerate high salt concentrations

   • Martin Hagemann
   • Ellen Zuther

   Original Papers Pages: 429 - 434

9. Correlation between manganese-deficiency, loss of respiratory chain complex I activity and citric acid production in Aspergillus niger

   • Jürgen Wallrath
   • Michael Schmidt
   • Hanns Weiss

   Original Papers Pages: 435 - 438

10. The impact of organic matter on nitric oxide formation by Nitrosomonas europaea

    • Ralf Stüven
    • Michael Vollmer
    • Eberhard Bock

    Original Papers Pages: 439 - 443

11. The hyp operon gene products are required for the maturation of catalytically active hydrogenase isoenzymes in Escherichia coli

    • A. Jacobi
    • R. Rossmann
    • A. Böck

    Original Papers Pages: 444 - 451

12. Effect of growth phase on the fatty acid composition of Thermus spp.

    • Katrina M. Nordström

    Short Communications Pages: 452 - 455

13. Respiratory oxidation of reduced sulfur compounds by intact cells of Thiobacillus tepidarius (type strain)

    • Trello Beffa
    • Catherine Fischer
    • Michel Aragno

    Short Communications Pages: 456 - 458