1. Effect of divalent cations on the short-term NH ₄ ⁺ inhibition of nitrogen fixation in Azotobacter chroococcum

   • María T. Ruiz
   • Francisco J. Cejudo
   • Antonio Paneque

   Original Papers 01 September 1990 Pages: 313 - 316

2. Influence of environmental factors on 2,4-dichlorophenoxyacetic acid degradation by Pseudomonas cepacia isolated from peat

   • Charles W. Greer
   • Jalal Hawari
   • Réjean Samson

   Original Papers 01 September 1990 Pages: 317 - 322

3. Fermentation of maleate by a gram-negative strictly anaerobic non-spore-former, Propionivibrio dicarboxylicus gen. nov., sp. nov.

   • Kazuhiro Tanaka
   • Kazunori Nakamura
   • Eiichi Mikami

   Original Papers 01 September 1990 Pages: 323 - 328

4. Extraction of ribosomal RNA from soil for detection of Frankia with oligonucleotide probes

   • D. Hahn
   • R. Kester
   • A. D. L. Akkermans

   Original Papers 01 September 1990 Pages: 329 - 335

5. Isolation and characterization of a bacterium that mineralizes toluene in the absence of molecular oxygen

   • J. Dolfing
   • J. Zeyer
   • R. P. Schwarzenbach

   Original Papers 01 September 1990 Pages: 336 - 341

6. Clostridium homopropionicum sp. nov., a new strict anaerobe growing with 2-, 3-, or 4-hydroxybutyrate

   • Christina Dörner
   • Bernhard Schink

   Original Papers 01 September 1990 Pages: 342 - 348

7. Different physiological roles of two independent pathways for nitrite reduction to ammonia by enteric bacteria

   • Lisa Page
   • Lesley Griffiths
   • Jeff A. Cole

   Original Papers 01 September 1990 Pages: 349 - 354

8. Anaerobic degradation of acetone by Desulfococcus biacutus spec. nov.

   • Harald Platen
   • Armi Temmes
   • Bernhard Schink

   Original Papers 01 September 1990 Pages: 355 - 361

9. The biotin-dependent sodium ion pump glutaconyl-CoA decarboxylase from Fusobacterium nucleatum (subsp. nucleatum)

   • Birgitta Beatrix
   • Klaus Bendrat
   • Wolfgang Buckel

   Original Papers 01 September 1990 Pages: 362 - 369

10. Catabolism of 1,2-diarylethane lignin model compounds by two brown-rot fungi

    • Eduardo Espejo
    • Eduardo Agosin
    • Rafael Vicuña

    Original Papers 01 September 1990 Pages: 370 - 374

11. Occurrence and structure of lipoteichoic acids in the genus Staphylococcus

    • G. J. Ruhland
    • F. Fiedler

    Original Papers 01 September 1990 Pages: 375 - 379

12. Natural genetic transformation of Pseudomonas stutzeri by sand-adsorbed DNA

    • Michael G. Lorenz
    • Wilfried Wackernagel

    Original Papers 01 September 1990 Pages: 380 - 385

13. The fumarate reductase operon of Wolinella succinogenes

    • F. Lauterbach
    • C. Körtner
    • A. Kröger

    Original Papers 01 September 1990 Pages: 386 - 393

14. A complete citric acid cycle in assimilatory metabolism of Pelobacter acidigallici, a strictly anaerobic, fermenting bacterium

    • Andreas Brune
    • Bernhard Schink

    Original Papers 01 September 1990 Pages: 394 - 399

15. Formation of thiosulfate and trithionate during sulfite reduction by washed cells of Desulfovibrio desulfuricans

    • Robert M. Fitz
    • Heribert Cypionka

    Original Papers 01 September 1990 Pages: 400 - 406

16. Regulation of pyrimidine biosynthesis in Pseudomonas cepacia

    • Thomas P. West
    • Chien-peng Chu

    Short Communications 01 September 1990 Pages: 407 - 409

17. Selection of trichloroethene (TCE) degrading bacteria that resist inactivation by TCE

    • Jens Ewers
    • Doris Freier-Schröder
    • Hans-Joachim Knackmuss

    Short Communications 01 September 1990 Pages: 410 - 413

18. Genetic transformation of glutamine auxotrophy to prototrophy in the cyanobacterium Nostoc muscorum

    • S. K. Verma
    • A. K. Singh
    • H. N. Singh

    Short Communications 01 September 1990 Pages: 414 - 416