Letter | Published:

Effect of Certain Soil Organisms on the Eggs of Parasitic Roundworms

Naturevolume 199page925 (1963) | Download Citation



THE influence of biological factors on the development and viability of eggs of parasitic roundworms (geo-helminths) in soil has not yet been sufficiently explored. It is known that some fungi are able to attack free-living Nemathelminths1–3. It has also been shown that some fungi can attack larvæ of Strongyloides from horses and larvæ of Trichostrongylides from cattle3. Some fungi are also capable of inhibiting the development of eggs of ascarids in vitro4. Gudzhabidze and Preobrazhenskaya5 performed experiments on Ascaris eggs by influencing them with micro-organisms, which had been isolated from the soil specimens from sewage farms. Certain species of actinomycetes and soil bacteria were capable of exerting a depressing effect on the eggs of ascarids.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.


  1. 1

    Balfour, E. B., The Living Soil. (Faber and Faber, Ltd., London, 1946)

  2. 2

    Duddington, C. L., The Friendly Fungi (Moscow, 1959) (in Russian).

  3. 3

    Dollfus, R. P., Parasites/animaux et végétaux/des helminthes (P. Lechevalier, Paris, 1946).

  4. 4

    Lýsek, H., Scripta Medica Fac. Med. Univ. Brunensis et Olomoucensis, 31, 345 (1958); Acta Universitatis Palackianae Olomucensis, 23, 65 (1961).

  5. 5

    Gudzhabidze, G. Sh., and Preobrazhenskaya, T. P., Med. par. i par. bol., 28, 400 (1959).

Download references

Author information


  1. Department of Biology, Medical Faculty Palacký University, Olomouc, Czechoslovakia



  1. Search for HYNEK LÝSEK in:

About this article

Publication history

Issue Date



Further reading


By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.