1. Catabolic plasmids of environmental and ecological significance

   • Gary S. Sayler
   • Scott W. Hooper
   • J. M. Henry King

   Mini Review Pages: 1 - 20

2. Bacterial flora of fishes: A review

   • Marian M. Cahill

   OriginalPaper Pages: 21 - 41

3. Thymidine incorporation in saltern ponds of different salinities: Estimation of in situ growth rates of halophilic archaeobacteria and eubacteria

   • Aharon Oren

   OriginalPaper Pages: 43 - 51

4. Bacterial production in freshwater sediments: Cell specific versus system measures

   • Robert D. Fallon
   • Charles W. Boylen

   OriginalPaper Pages: 53 - 62

5. Denitrification and oxygen respiration in biofilms studied with a microsensor for nitrous oxide and oxygen

   • Lars Peter Nielsen
   • Peter Bondo Christensen
   • Jan Sørensen

   OriginalPaper Pages: 63 - 72

6. Microbial community structure and biomass estimates of a methanogenic Antarctic Lake ecosystem as determined by phospholipid analyses

   • C. A. Mancuso
   • P. D. Franzmann
   • P. D. Nichols

   OriginalPaper Pages: 73 - 95

7. Relationship between phototrophy and phagotrophy in the mixotrophic chrysophytePoterioochromonas malhamensis

   • Robert W. Sanders
   • Karen G. Porter
   • David A. Caron

   OriginalPaper Pages: 97 - 109

8. Water relations and photosynthesis in the cryptoendolithic microbial habitat of hot and cold deserts

   • Robert J. Palmer Jr.
   • E. Imre Friedmann

   OriginalPaper Pages: 111 - 118

9. Effects of watering and simulated acid rain on quantity of phyllosphere fungi of birch leaves

   • M. L. Helander
   • A. Rantio-Lehtimäki

   OriginalPaper Pages: 119 - 125