Plant and Soil

, Volume 49, Issue 2, pp 355–366 | Cite as

Studies on soil fungistasis: Effect of certain physical and biological factors

  • R. R. Mishra
  • K. K. Pandey
Article
  • 24 Downloads

Summary

The effect of different physical and biological factors like soil sterilization, incubation period of soil, spore age, amendment of certain fungal species and their metabolites on soil fungistasis has been investigated.

Different degree of sterilization affected the fugistasis differently. Soil heating above 80°C completely annulled the fungistasis. No fungistasis was recorded in soil samples steamed for 15 mts in an autoclave.

Incubation of soil samples to longer duration resulted in increased fungistasis. Maximum fungistatic value was noted in samples incubated for 15 days at 25±1°C.

Spore age also played important role in fungistasis. A positive relation was noted in the spore age and fungistasis upto 30 days of age and thereafter the increase in fungistasis was not well marked.

Varying inhibitory effect was noted on the spore germination of the test fungi in relation to amendment of certain fungi individually and in different combinations to the soil.Aspergillus flavus alone and in combination ofAspergillus niger proved most inhibitory. The filtrate of the different fungi also induced fungistasis in soil. In this case alsoA. flavus was most effective.

Keywords

Steam Soil Sample Plant Physiology Aspergillus Incubation Period 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Dobbs, C. G. and Hinson, W. H., A wide-spread fungistasis in soils. Nature London172, 197–199 (1953).PubMedGoogle Scholar
  2. 2.
    Dwivedi, R. and Dwivedi, R. S., Development of fungistasis in sterile soil inoculating soil inhabiting fungi. Abstr. Proc. Natl. Acad. Sci. India165, (1970).Google Scholar
  3. 3.
    Griffin, G. J., Production of a fungistatic effect by soil microflora in autoclaved soil. Phytopathology52, 90–91 (1962).Google Scholar
  4. 4.
    Griffiths, D. A. and Dobbs, C. R., Relationships between mycostasis and free monosaccharides in soils. Nature London199, 408 (1963).Google Scholar
  5. 5.
    Jackson, R. M., An investigation of fungistasis in Nigerian soils. J. Gen. Microbiol.18, 248 (1958).Google Scholar
  6. 6.
    Keim, R. and Webster, R. K., Fungistasis of sclerotia ofSclerotia oryzae. Phytopathology65, 283–287 (1975).Google Scholar
  7. 7.
    Lockwood, J. L.,Streptomyces spp. as a cause of natural fungitoxicity in soils. Phytopathology49, 327–331 (1959).Google Scholar
  8. 8.
    Lockwood, J. L. and Lingappa, B. T., Fungitoxicity of autoclaved soil inoculated with soil microflora. Phytopathology53, 917–920 (1963).Google Scholar
  9. 9.
    Mishra, R. R. and Kanaujia, R. S., Observations on soil fungistasis III. Fungistasis in relation to soil depths, seasonal changes, soil amendments and physicochemical characteristics of soil. Plant and Soil38, 321–330 (1973).CrossRefGoogle Scholar
  10. 10.
    Park, D., Antagonism: The Background in Soil fungi.In The Ecology of Soil Fungi, pp. 148–159, D. Parkinson and J. S. Waid eds., Liverpool University Press (1960).Google Scholar
  11. 11.
    Steiner, G. W. and Lockwood, J. L., Soil fungistasis. Mechanism in sterilized, reinoculated soil. Phytopathology60, 89–91 (1970).Google Scholar

Copyright information

© Martinus Nijhoff 1978

Authors and Affiliations

  • R. R. Mishra
    • 1
  • K. K. Pandey
    • 2
  1. 1.Department of Botany, School of Life SciencesNorth-Eastern Hill UniversityShillong-3India
  2. 2.Department of BotanyD.A.V. CollegeGorakhpur (U.P.)India

Personalised recommendations