1. Further characterization of two different, reversible aldehyde oxidoreductases from Clostridium formicoaceticum, one containing tungsten and the other molybdenum

   • C. Huber
   • J. Caldeira
   • H. Simon

   Original Paper Pages: 303 - 309

2. Two differentially regulated nitrate reductases required for nitrate-dependent, microaerobic growth of Bradyrhizobium japonicum

   • Manuel Fernández-López
   • José Olivares
   • Eulogio J. Bedmar

   Original Paper Pages: 310 - 315

3. An unusual hemoprotein capable of reversible binding of nitric oxide from the gram-positive Bacillus halodenitrificans

   • Gerard Denariaz
   • Paul A. Ketchum
   • Jose J. Moura

   Original Paper Pages: 316 - 322

4. Genetic characterization of ompH mutants in the deep-sea bacterium Photobacterium sp. strain SS9

   • Douglas Bartlett
   • Ellen Chi

   Original Paper Pages: 323 - 328

5. Characterization of the NADH dehydrogenase and fumarate reductase of Fibrobacter succinogenes subsp. succinogenes S85

   • Steven W. Meinhardt
   • Thomas L. Glass

   Original Paper Pages: 329 - 334

6. Induction by nitrate of cytoplasmic and periplasmic proteins in the photodenitrifier Rhodobacter sphaeroides forma sp. denitrificans under anaerobic or aerobic condition

   • Monique Sabaty
   • Jean Gagnon
   • André Verméglio

   Original Paper Pages: 335 - 343

7. Physiological regulation of competence induction for natural transformation in Acinetobacter calcoaceticus

   • Ronald Palmen
   • Pieter Buijsman
   • Klaas J. Hellingwerf

   Original Paper Pages: 344 - 351

8. Ability of selected accessions of Phaseolus vulgaris L. to restrict nodulation by particular rhizobia

   • Constanza Montealegre
   • Judith Kipe-Nolt

   Original Paper Pages: 352 - 356

9. Isolation of auxotrophic and antimetabolite-resistant mutants of the hyperthermophilic bacterium Thermotoga neapolitana

   • Madeline Vargas
   • Kenneth M. Noll

   Original Paper Pages: 357 - 361

10. Leucine biosynthesis and its regulation in the basidiomycete Rhodosporidium toruloides

    • Michael Tully

    Original Paper Pages: 362 - 367

11. Dienelactone hydrolase from Rhodococcus erythropolis 1 CP: purification and properties

    • Olga V. Maltseva
    • Inna P. Solyanikova
    • Hans-Joachim Knackmuss

    Original Paper Pages: 368 - 374