Soil Fungistasis: Role of the Microbial Nutrient Sink and of Fungistatic Substances in Two Soils Free

Abstract

SUMMARY: Sensitivity of conidia of to fungistasis decreased markedly following incubation on moist sand for at least 1 h. Germination was greater on Conover loam or on sand being leached with water than on an alkaline clay loam soil known to produce a volatile fungistatic substance. Evolution of CO began within 3 min after [C]glucose was applied to the soils; the rate of CO evolution was faster with Conover loam. conidia per unit of glucose remaining in agar discs initially containing 0·1% glucose, was lower for discs incubated on the clay loam soil than on Conover loam, and was greatest on a bed of sand undergoing aqueous leaching. Germination of ascospores of and conidia of was suppressed on discs of washed, Purified Agar or polyacrylamide gel incubated on or over the clay loam soil, but no suppression resulted when discs were incubated on Conover loam. Extensive aeration of either soil did not remove its fungistatic effect. Fungistasis in Conover loam appears to be caused primarily by nutrient deprivation, whereas volatile fungistatic substances may play a major role in the clay loam soil.

Loading

Article metrics loading...

/content/journal/micro/10.1099/00221287-90-1-147
1975-09-01
2024-03-19
Loading full text...

Full text loading...

/deliver/fulltext/micro/90/1/mic-90-1-147.html?itemId=/content/journal/micro/10.1099/00221287-90-1-147&mimeType=html&fmt=ahah

References

  1. Adams P. B., Lewis J. A., Papavizas G. C. 1968; Survival of root-infecting fungi in soil. IV. The nature of fungistasis in natural and cellulose-amended soil on chlamydospores of Fusarium solani f.sp. phaseoli. Phytopathology 58:378–383
    [Google Scholar]
  2. Babiuk L. A., Paul E. A. 1970; The use of fluorescein isothiocyanate in the determination of the bacterial biomass of grassland soil. Canadian Journal of Microbiology 16:57–62
    [Google Scholar]
  3. Bishop D. H., Claybrook J. R., Spiegelman S. 1967; Electrophoretic separation of viral nucleic acids on polyacrylamide gels. Journal of Molecular Biology 36:373–387
    [Google Scholar]
  4. Blakeman J. P., Fraser A. K. 1971; Inhibition ofBotrytis cinerea spores by bacteria on the surface of chrysanthemum leaves. Physiological Plant Pathology 1:45–54
    [Google Scholar]
  5. Bray G. A. 1960; A simple efficient liquid scintillator for counting aqueous solutions in a liquid scintillation counter. Annals of Biochemistry 1:279–285
    [Google Scholar]
  6. Bristow P. R., Lockwood J. L. 1975; Soil fungistasis: role of spore exudates in the inhibition of nutrient-independent propagules. Journal of General Microbiology 90:140–146
    [Google Scholar]
  7. Farley J. D., Lockwood J. L. 1968; The suppression of actinomycetes by PCNB in culture media used for enumerating soil bacteria. Phytopathology 58:714–715
    [Google Scholar]
  8. Gray T. R. G., Williams S. T. 1971; Microbial productivity in soil. In Microbes and Biological Productivity, pp. 255–286 Hughes D. E. E., Rose. A. H. Edited by Cambridge University Press.;
    [Google Scholar]
  9. Hora T. S., Baker R. 1970; A volatile factor in soil fungistasis. Nature; London: 225:1071–1072
    [Google Scholar]
  10. Hsu S. C., Lockwood J. L. 1973; Soil fungistasis: behaviour of nutrient-independent spores and sclerotia in a model system. Phytopathology 63:334–337
    [Google Scholar]
  11. Jackson R. M., Knight R. A. 1973; Conidial germination ofCochliobolus sativus on soil and under artificial nutrient stress. Abstracts of Papers, Second International Congress of Plant Pathology Minneapolis: University of Minnesota;
    [Google Scholar]
  12. Ko W. H., Hora F. K., Herlicska E. 1974; Isolation and identification of a volatile fungistatic substance from alkaline soil. Phytopathology 64:1398–1400
    [Google Scholar]
  13. Ko W. H., Lockwood J. L. 1967; Soil fungistasis: relation to fungal spore nutrition. Phytopathology 57:894–901
    [Google Scholar]
  14. Lingappa B. T., Lockwood J. L. 1962; Fungitoxicity of lignin monomers, model substances, and decomposition products. Phytopathology 52:295–299
    [Google Scholar]
  15. Lingappa B. T., Lockwood J. L. 1964; Activation of soil microflora by fungus spores in relation to soil fungistasis. Journal of General Microbiology 35:215–277
    [Google Scholar]
  16. Lingappa Y., Lockwood J. L. 1962; Chitin media for selective isolation of actinomycetes. Phytopathology 52:317–323
    [Google Scholar]
  17. Smith A. M. 1973; Ethylene as a cause of soil fungistasis. Nature; London: 246:311–313
    [Google Scholar]
  18. Steiner G. W., Lockwood J. L. 1969; Soil fungistasis: sensitivity of spores in relation to germination time and size. Phytopathology 59:1084–1092
    [Google Scholar]
  19. Steiner G. W., Lockwood J. L. 1970; Soil fungistasis: mechanism in sterilized, reinoculated soil. Phytopathology 60:89–91
    [Google Scholar]
  20. Steiner G. W., Watson R. D. 1965; Use of surfactants in the soil dilution and plate count method. Phytopathology 55:728–730
    [Google Scholar]
  21. Yoder D. L., Lockwood J. L. 1973; Fungal spore germination on natural and sterile soil. Journal of General Microbiology 74:107–117
    [Google Scholar]
http://instance.metastore.ingenta.com/content/journal/micro/10.1099/00221287-90-1-147
Loading
/content/journal/micro/10.1099/00221287-90-1-147
Loading

Data & Media loading...

Most cited Most Cited RSS feed