1. The phylogeny of unicellular, extremely halotolerant cyanobacteria

   • F. Garcia-Pichel
   • Ulrich Nübel
   • Gerard Muyzer

   Original paper Pages: 469 - 482

2. Iron regulates transcription of the Escherichia coli ferric citrate transport genes directly and through the transcription initiation proteins

   • Annemarie Angerer
   • V. Braun

   Original paper Pages: 483 - 490

3. Exponential growth of Escherichia coli B/r during its division cycle is demonstrated by the size distribution in liquid culture

   • F. J. Trueba
   • L. J. H. Koppes

   Original paper Pages: 491 - 496

4. Purification and characterization of the tetrachloroethene reductive dehalogenase of strain PCE-S

   • Evelyn Miller
   • Gert Wohlfarth
   • G. Diekert

   Original paper Pages: 497 - 502

5. Purification and characterization of a catalase from the nonsulfur phototrophic bacterium Rhodobacter sphaeroides ATH 2.4.1 and its role in the oxidative stress response

   • Detlef P. Terzenbach
   • M. Blaut

   Original paper Pages: 503 - 508

6. Phenylacetyl-CoA:acceptor oxidoreductase, a new α-oxidizing enzyme that produces phenylglyoxylate. Assay, membrane localization, and differential production in Thauera aromatica

   • Sabine Schneider
   • G. Fuchs

   Original paper Pages: 509 - 516

7. The two 3-deoxy-d-arabino-heptulosonate-7-phosphate synthase isoenzymes from Saccharomyces cerevisiae show different kinetic modes of inhibition

   • Georg Schnappauf
   • Markus Hartmann
   • G. H. Braus

   Original paper Pages: 517 - 524

8. Acetyl-CoA decarbonylase/synthase complex from Archaeoglobus fulgidus

   • Yao-Ren Dai
   • David W. Reed
   • E. DeMoll

   Short communication Pages: 525 - 529

9. A temperature-sensitive DNA adenine methyltransferase mutant of Salmonella typhimurium

   • Rolando Brawer
   • Facundo D. Batista
   • M. C. Cerquetti

   Short communication Pages: 530 - 533