Folia Microbiologica

, Volume 16, Issue 6, pp 457–464 | Cite as

The cumulative effect of gamma irradiation on the microbial soil population and its activity

  • M. Monib
  • M. A. A. Salam
  • T. T. El-Hadidy


The counts ofAzotobacter, N-fixing clostridia, aerobic cellulose decomposing bacteria, spore formers and actinomycetes were not affected by examined irradiation doses. There were, however, indications of a disturbance in the balance between organisms as evidenced by the rapid increase of actinomycetes and sporeformers during incubation. The effects of various irradiation doses on organic matter decomposition, N-fixing capacity and nitrification power were negligible.


Gamma Radiation Organic Matter Decomposition Nitrify Bacterium Untreated Soil Total Bacterial Count 
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Copyright information

© Institute of Microbiology, Academy of Sciences of the Czech Republic 1971

Authors and Affiliations

  • M. Monib
    • 1
    • 2
  • M. A. A. Salam
    • 1
    • 2
  • T. T. El-Hadidy
    • 1
    • 2
  1. 1.Agricultural Bacteriology Department, Faculty of AgricultureCairo UniversityU.A.R.
  2. 2.Soil Microbiology UnitDesert InstituteCairoU.A.R.

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