1. Molybdate transport and regulation in bacteria

   • A. M. Grunden
   • K. T. Shanmugam

   Mini-review Pages: 345 - 354

2. Isolation of new 6-methylnicotinic-acid-degrading bacteria, one of which catalyses the regioselective hydroxylation of nicotinic acid at position C2

   • Andreas Tinschert
   • Andreas Kiener
   • A. Tschech

   Original paper Pages: 355 - 361

3. Cytochrome c peroxidase from Methylococcus capsulatus Bath

   • James A. Zahn
   • David M. Arciero
   • A. A. DiSpirito

   Original paper Pages: 362 - 372

4. Cultivation of hyperthermophilic archaea in capillary tubes resulting in improved preservation of fine structures

   • Gertraud Rieger
   • Karin Müller
   • R. Rachel

   Original paper Pages: 373 - 379

5. Dissimilatory arsenate and sulfate reduction in Desulfotomaculum auripigmentum sp. nov.

   • Dianne K. Newman
   • Erin K. Kennedy
   • François M. M. Morel

   Original paper Pages: 380 - 388

6. Immunochemically distinct NADP-linked isocitrate dehydrogenase isozymes in mitochondria and peroxisomes of Candida tropicalis

   • Toshiya Imajo
   • Hiroyuki Kawachi
   • A. Tanaka

   Original paper Pages: 389 - 395

7. Function of coenzyme F420-dependent NADP reductase in methanogenic archaea containing an NADP-dependent alcohol dehydrogenase

   • Holger Berk
   • R. K. Thauer

   Original paper Pages: 396 - 402

8. Characterisation of Escherichia coli K-12 mutants defective in formate-dependent nitrite reduction: essential roles for hemN and the menFDBCE operon

   • K. Tyson
   • R. Metheringham
   • J. Cole

   Original paper Pages: 403 - 411

9. Biochemical and phylogenetic characterization of isocitrate dehydrogenase from a hyperthermophilic archaeon, Archaeoglobus fulgidus

   • Ida Helene Steen
   • Torleiv Lien
   • Nils-Kåre Birkeland

   Original paper Pages: 412 - 420

10. The path of unspecific incorporation of selenium in Escherichia coli

    • Sabine Müller
    • Johann Heider
    • A. Böck

    Original paper Pages: 421 - 427

11. Propionate oxidation in Escherichia coli: evidence for operation of a methylcitrate cycle in bacteria

    • Susanne Textor
    • Volker F. Wendisch
    • W. Buckel

    Original paper Pages: 428 - 436

12. Pertactin antigens extracted from Bordetella pertussis and Bordetella bronchiseptica differ in the isoelectric point

    • Cristina Pagliaccia
    • Roberto Manetti
    • R. Rappuoli

    Short communication Pages: 437 - 440