Changes in the Nitrate-reducing Community of an Anaerobic Saltmarsh Sediment in Response to Seasonal Selection by Temperature Free

Abstract

Measurement of the nitrate-reducing potential by bacteria in saltmarsh sediment, using a thermal gradient block incubator, revealed seasonal physiological changes in the community. A mesophilic part of the nitrate-reducing community was always present, although it achieved maximum development at the end of the summer and minimum development at the end of the winter. In contrast, a distinct psychrotrophic part of the community achieved maximum development at the end of the winter but disappeared during summer. Chemostat enrichment of nitrate-reducing bacteria at 10 °C isolated predominantly spp., but spp. predominated in enrichments at 25 °C. The observed seasonal changes might reflect differential seasonal selection of these two groups of bacteria.

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1984-11-01
2024-03-28
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References

  1. Abd.Aziz S.A. 1979 A stuay of nitrogen cycimg in a coastal salt marsh ecosystem. PhD thesis, University of Essex, UK
    [Google Scholar]
  2. Abdollahi H.A., Nedwell D.B. 1979; Seasonal temperature as a factor influencing bacterial sulfate reduction in a saltmarsh sediment. Mkrobial Ecology 5:73–79
    [Google Scholar]
  3. Brown C.M., Ellwood D.C.A., Hunter J.R. 1977; Growth of bacteria at surfaces: influence of nutrient limitation. FEMS Microbiology Letters 1:163–166
    [Google Scholar]
  4. Cole J.A., Brown C.M. 1980; Nitrite reduction to ammonia by fermentative bacteria: a short circuit in the biological nitrogen cycle. FEMS Microbiology Letters 7:65–72
    [Google Scholar]
  5. Dunn G.M., Wardell J.N., Herbert R.A. 1980; Enrichment, enumeration and characterisation of nitrate-reducing bacteria present in sediments of the River Tay estuary. Proceedings of the Royal Society of Edinburgh 78B:47–56
    [Google Scholar]
  6. Gibson D.M., Hendry M.S., Houston N.C., Hobbs G. 1977; The identification of some Gram negative heterotrophic aquatic bacteria. In Aquatic Microbiology pp. 135–159 Skinner F. A., Shewan J. M. London: Academic Press;
    [Google Scholar]
  7. Hanus F.J.A., Morita R.Y. 1968; Significance of the temperature characteristic of growth. Journal of Bacteriology 95:736–737
    [Google Scholar]
  8. Harder W.A., Veldkamp H. 1971; Competition of marine psychrophilic bacteria at low temperatures. Antonie van Leeuwenhoek 37:51–63
    [Google Scholar]
  9. Herbert R.A., Dunn G.M., Brown C.M. 1980; The physiology of nitrate dissimilatory bacteria from the Tay estuary. Proceedings of the Royal Society of Edinburgh 78B:79–87
    [Google Scholar]
  10. Jones J.G.A., Simon B.M. 1980; Decomposition processes in the profundal region of Blelham Tarn and the Lund Tubes. Journal of Ecology 68:493–512
    [Google Scholar]
  11. Kaplan W.A., Teal J.M.A., Valiela I. 1977; Denitrification in salt marsh sediments: evidence for seasonal temperature selection among populations of denitrifiers. Microbial Ecology 3:193–204
    [Google Scholar]
  12. Mcfarlane G.T.A., Herbert R.A. 1982; Nitrate dissimilation by Vibrio spp. isolated from estuarine sediments. Journal of General Microbiology 128:2463–2468
    [Google Scholar]
  13. Morita R.Y. 1975; Psychrophilic bacteria. Bacteriological Reviews 39:144–167
    [Google Scholar]
  14. Nedwell D.B. 1975; Inorganic nitrogen metabolism in a eutrophicated tropical mangrove estuary. Water Research 9:221–231
    [Google Scholar]
  15. Nedwell D.B. 1982; Exchange of nitrate, and the products of bacterial nitrate reduction, between seawater and sediment from a U K. saltmarsh. Estuarine, Coastal and Shelf Science 14:557–566
    [Google Scholar]
  16. Nedwell D.B.A., Abram J.W. 1978; Bacterial sulphate reduction in relation to sulphur geochemistry in two contrasting areas of saltmarsh sediment. Estuarine and Coastal Marine Science 6:341–351
    [Google Scholar]
  17. Nedwell D.B., Floodgate G.D. 1971; The seasonal selection by temperature of heterotrophic bacteria in an intertidal sediment. Marine Biology 11:306–310
    [Google Scholar]
  18. Oren A.A., Blackburn T.H. 1978; Estimation of sediment denitrification rates at in situ nitrate concentrations. Applied and Environmental Microbiology 37:174–176
    [Google Scholar]
  19. Painter H.A. 1970; A review of literature on inorganic nitrogen metabolism in microorganisms. Water Research 4:393–450
    [Google Scholar]
  20. Reichardt W.A., Morita R.Y. 1982; Temperature characteristics of psychrotrophic and psychrophilic bacteria. Journal of General Microbiology 128:565–568
    [Google Scholar]
  21. Sieburth J.M. 1967; Seasonal selection of estuary bacteria by water temperature. Journal of Experimental Marine Biology and Ecology 1:98–121
    [Google Scholar]
  22. Sorensen J. 1978; Capacity for denitrification and reduction of nitrate to ammonia in a coastal marine sediment. Applied and Environmental Microbiology 35:301–305
    [Google Scholar]
  23. Sorensen J., Jorgensen B.B.A., Revsbech N.P. 1979; A comparison of oxygen, nitrate and sulphate respiration in coastal marine sediments Microbiology Ecology. 5:105–115
    [Google Scholar]
  24. Strickland J.D.H.A., Parsons T.R. 1972 A Practical Handbook of Seawater Analysis. Ottawa: Fisheries Research Board of Canada;
    [Google Scholar]
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