1887

Abstract

SUMMARY: The effects of water potential on the photosynthesis, growth and viability of natural populations and laboratory cultures of were measured. was very sensitive to reduced water potential, matric reduction being more harmful than osmotic. The distribution of this alga in different soil areas appeared to be related to the sensitivity to water stress, larger populations being found in areas with higher water potential.

There are very steep gradients of water potential in the soils where is found. The water potential of the surface crust is much too low to allow growth and is found in a subsurface layer. The reduced light intensity below the soil surface interacts with the increased water potential to define the position of the algal layer.

Loading

Article metrics loading...

/content/journal/micro/10.1099/00221287-79-2-219
1973-12-01
2024-05-03
Loading full text...

Full text loading...

/deliver/fulltext/micro/79/2/mic-79-2-219.html?itemId=/content/journal/micro/10.1099/00221287-79-2-219&mimeType=html&fmt=ahah

References

  1. Adebayo A. A., Harris R. F. 1971; Fungal growth responses to osmotic as compared to matric water potential. Proceedings. Soil Science Society of America 35:465–469
    [Google Scholar]
  2. Adebayo A. A., Harris R. F., Gardner W. R. 1971; Turgor pressure of fungal mycelia. Transactions of the British Mycological Society 57:145–151
    [Google Scholar]
  3. Allen M. B. 1959; Studies with Cyanidium caldarium, an anomalously pigmented chlorophyte. Archiv für Mikrobiologie 32:270–277
    [Google Scholar]
  4. American Public Health Association 1965 Standard Methods for the Examination of Water and Waste Water, 12th edn. New York: APHA;
    [Google Scholar]
  5. Bold H. C. 1970; Some aspects of the taxonomy of soil algae. Annals of the New York Academy of Sciences 175:601–616
    [Google Scholar]
  6. Bristol B. M. 1919; On the retention of vitality by algae from old stored soils. New Phytologist 18:92–107
    [Google Scholar]
  7. Clark F. E. 1967; Bacteria in soil. In Soil Biology pp 15–49 Edited by Burges A., Raw F. New York: Academic Press;
    [Google Scholar]
  8. Cook R. J., Papendick R. I., Griffin D. M. 1972; Growth of two root-rot fungi as affected by osmotic and matric water potentials. Proceedings. Soil Science Society of America 36:78–82
    [Google Scholar]
  9. Doemel W. N., Brock T. D. 1970; The upper temperature limit of Cyanidium caldarium. Archiv für Mikrobiologie 72:326–332
    [Google Scholar]
  10. Doemel W. N., Brock T. D. 1971a; pH of very acid soils. Nature, London 229:574
    [Google Scholar]
  11. Doemel W. N., Brock T. D. 1971b; The physiological ecology of Cyanidium caldarium. Journal of General Microbiology 67:17–32
    [Google Scholar]
  12. Fritsch F. E. 1922; The moisture relations of terrestrial algae. I. Some general observations and experiments. Annals of Botany 36:1–20
    [Google Scholar]
  13. Fritsch F. E., Haines F. M. 1923; The moisture relations of terrestrial algae. II. The changes during exposure to drought and treatment with hypertonic solutions. Annals of Botany 37:683–728
    [Google Scholar]
  14. Griffin D. M. 1969; Soil water in the ecology of fungi. Annual Review Phytopathology 7:289–310
    [Google Scholar]
  15. Harris R. F., Gardner W. R., Adebayo A. A., Sommers L. E. 1970; Agar dish isopiestic equilibration method for controlling the water potential of solid substrates. Applied Microbiology 19:536–537
    [Google Scholar]
  16. Lang A. R. G. 1967; Osmotic coefficients and water potentials of sodium chloride solutions from o to 40 C. Australian Journal of Chemistry 20:2017–2023
    [Google Scholar]
  17. Lee J. A., Stewart G. R. 1971; Desiccation injury in mosses. I. Intra-specific differences in the effect of moisture stress on photosynthesis. New Phytologist 70:1061–1068
    [Google Scholar]
  18. Lund J. W. G. 1962; Soil algae. In Physiology and Biochemistry of the Algae pp 759–770 Edited by Lewin Ralph A. New York: Academic Press;
    [Google Scholar]
  19. Lund J. W. G. 1967; Soil algae. In Soil Biology pp 129–147 Edited by Burges A., Raw F. New York: Academic Press;
    [Google Scholar]
  20. Parker B. C., Schanen N., Renner R. 1969; Viable soil algae from the herbarium of the Missouri Botanical Garden. Annals of the Missouri Botanical Garden 56:113–119
    [Google Scholar]
  21. Rigano C., Conforti T. 1966–1967; Ecologia e distribuzione dell’alga unicellulare Cyanidium caldarium (Tilden) Geitler nei Campi Flegrei. Delpinoa 8–9:3–11
    [Google Scholar]
  22. Rogers R. W. 1971; Distribution of the lichen Chondropsis semiviridus in relation to its heat and drought resistance. New Phytologist 70:1069–1077
    [Google Scholar]
  23. Scott W. J. 1953; Water relations of Staphylococcus aureus at 30 °C. Australian Journal of Biological Sciences 6:549–564
    [Google Scholar]
  24. Scott W. J. 1957; Water relations of food spoilage microorganisms. Advances in Food Research 7:83–127
    [Google Scholar]
  25. Seely G. R., Jensen R. G. 1965; Effect of solvent on the spectrum of chlorophyll. Spectrochimica acta 21:1835–1845
    [Google Scholar]
  26. Shields L. M., Durrell L. W. 1964; Algae in relation to soil fertility. Botanical Review 30:92–128
    [Google Scholar]
  27. Shields L. M., Mitchell C., Drouet F. 1957; Alga- and lichen-stabilized surface crust as a soil nitrogen source. American Journal of Botany 44:489–498
    [Google Scholar]
  28. Smith D. W., Fliermans C. B., Brock T. D. 1972; Technique for measuring 14CO2 uptake by soil microorganisms in situ. Applied Microbiology 23:595–600
    [Google Scholar]
  29. Sommers L. E., Harris R. F., Dalton F. N., Gardner W. R. 1970; Water potential relations of three root-infecting phytophthora species. Phytopathology 60:932–934
    [Google Scholar]
  30. Stokes J. L. 1940; The influence of environmental factors upon the development of algae and other microorganisms in soil. Soil Science 49:171–184
    [Google Scholar]
  31. Trainor F. R. 1970; Survival of algae in a desiccated soil. Phycologia 9:111–113
    [Google Scholar]
  32. Volk S. L., Bishop N. E. 1968; Photosynthetic efficiency of a phycocyanin-less mutant of Cyanidium. Photochemistry and Photobiology 8:213–221
    [Google Scholar]
http://instance.metastore.ingenta.com/content/journal/micro/10.1099/00221287-79-2-219
Loading
/content/journal/micro/10.1099/00221287-79-2-219
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error