1. Publisher's announcement

   Announcement Pages: 3 - 3

2. Introduction

   • M. Lidstrom
   • G. Stewart

   Mini Review Pages: 5 - 5

3. Molecular approaches to problems in biogeochemical cycling

   • Mary E. Lidstrom

   Mini Reviews Pages: 7 - 14

4. Genetic exchange in the environment

   • Jerald P. Coughter
   • Gregory J. Stewart

   Mini Review Pages: 15 - 22

5. Clonal dynamics ofEscherichia coli in its natural habitat

   • T. S. Whittam

   Mini Review Pages: 23 - 32

6. Molecular and biochemical approaches to determining what bacteria are doing in vivo

   • Abigail A. Salyers

   Mini Review Pages: 33 - 38

7. Selection of glucose-assimilating variants ofAcinetobacter calcoaceticus LMD 79.41 in chemostat culture

   • B. J. Van Schie
   • R. J. Rouwenhorst
   • J. G. Kuenen

   General Papers Pages: 39 - 52

8. Effects of growth rate and oxygen tension on glucose dehydrogenase activity inAcinetobacter calcoaceticus LMD 79.41

   • B. J. Van Schie
   • J. P. Van Dijken
   • J. G. Kuenen

   General Papers Pages: 53 - 65

9. Influence of environmental parameters on polyphosphate accumulation inAcinetobacter sp.

   • Johan W. Van Groenestijn
   • Martina Zuidema
   • Alexander J. B. Zehnder

   General Papers Pages: 67 - 82

10. Effects of changes in the mitochondrial genome on the performance of baking yeasts

    • J. F. T. Spencer
    • Dorothy M. Spencer
    • Nicola Reynolds

    General Papers Pages: 83 - 93