1. Anaerobic extremely thermophilic carboxydotrophic bacteria in hydrotherms of Kuril Islands

   • V. A. Svetlichny
   • T. G. Sokolova
   • G. A. Zavarzin

   OriginalPaper Pages: 1 - 10

2. Aeromonas species in stabilization ponds in the arid region of Marrakesh, Morocco, and relation to fecal-pollution and climatic factors

   • Abdellatif Boussaid
   • Bernard Baleux
   • Jean Lesne

   OriginalPaper Pages: 11 - 20

3. Transposon Tn5 as an identifiable marker in rhizobia: Survival and genetic stability of Tn5 mutant bean rhizobia under temperature stressed conditions in desert soils

   • Suresh D. Pillai
   • Ian L. Pepper

   OriginalPaper Pages: 21 - 33

4. Distribution of epiphytic bacteria on olive leaves and the influence of leaf age and sampling time

   • G. L. Ercolani

   OriginalPaper Pages: 35 - 48

5. Dispersal dynamics of groundwater bacteria

   • Roland Lindqvist
   • Göran Bengtsson

   OriginalPaper Pages: 49 - 72

6. Degradation and oligomerization of syringic acid by distinctive ecological groups of fungi

   • Matthias Bergbauer

   OriginalPaper Pages: 73 - 84

7. Cell-bound and extracellular phosphatase activities of cyanobacterial isolates

   • B. A. Whitton
   • S. L. J. Grainger
   • J. W. Simon

   OriginalPaper Pages: 85 - 98

8. The effect of temperature and algal biomass on bacterial production and specific growth rate in freshwater and marine habitats

   • Paul A. White
   • Jacob Kalff
   • Josep M. Gasol

   OriginalPaper Pages: 99 - 118

9. Seasonal succession of ciliates in lake constance

   • H. Müller
   • A. Schöne
   • T. Weisse

   OriginalPaper Pages: 119 - 138

10. Acclimation of aquatic microbial communities to Hg(II) and CH₃Hg⁺ in polluted freshwater ponds

    • C. A. Liebert
    • T. Barkay
    • R. R. Turner

    OriginalPaper Pages: 139 - 149

11. The relationships of Hg(II) volatilization from a freshwater pond to the abundance ofmer genes in the gene pool of the indigenous microbial community

    • T. Barkay
    • R. R. Turner
    • C. Liebert

    OriginalPaper Pages: 151 - 161

12. Field calibration of soil-core microcosms: Fate of a genetically altered rhizobacterium

    • Harvey Bolton Jr.
    • James K. Fredrickson
    • John M. Thomas

    OriginalPaper Pages: 163 - 173

13. Field calibration of soil-core microcosms: Ecosystem structural and functional comparisons

    • Harvey Bolton Jr
    • James K. Fredrickson
    • Jeffrey L. Smith

    OriginalPaper Pages: 175 - 189

14. Potential risks of gene amplification by PCR as determined by 16S rDNA analysis of a mixed-culture of strict barophilic bacteria

    • W. Liesack
    • H. Weyland
    • E. Stackebrandt

    OriginalPaper Pages: 191 - 198

15. Genetic variation at theapcAB,cpcAB,gvpA1, andnifH loci and in DNA methylation among N₂-fixing cyanobacteria designatedNostoc punctiforme

    • W. J. Zimmerman
    • D. E. Culley

    OriginalPaper Pages: 199 - 209

16. Short-term variations in specific biovolumes of different bacterial forms in aquatic ecosystems

    • Télesphore Sime-Ngande
    • Gilles Bourdier
    • Bernadette Pinel-Alloul

    OriginalPaper Pages: 211 - 226

17. Microbiological characterization of a fuel-oil contaminated site including numerical identification of heterotrophic water and soil bacteria

    • Peter Kämpfer
    • Martin Steiof
    • Wolfgang Dott

    OriginalPaper Pages: 227 - 251

18. Biomass and organic acids in sandstone of a weathering building: Production by bacterial and fungal isolates

    • Robert J. Palmer Jr.
    • Jörg Siebert
    • Peter Hirsch

    OriginalPaper Pages: 253 - 266

19. Note: Colonization and invasion of leaves of the aquatic macrophyteCeratophyllum demersum L. by epiphytic bacteria

    • G. J. C. Underwood

    OriginalPaper Pages: 267 - 275

20. Gut microflora of two saltmarsh detritivore thalassinid prawns,Upogebia africana andCallianassa kraussi

    • Jean M. Harris
    • Lindsay J. Seiderer
    • Michael I. Lucas

    OriginalPaper Pages: 277 - 296

21. Announcement

    Announcement Pages: 297 - 297