Letter | Published:

Effect of Certain Soil Organisms on the Eggs of Parasitic Roundworms

Naturevolume 199page925 (1963) | Download Citation

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Abstract

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.

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References

  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).

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Affiliations

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

    • HYNEK LÝSEK

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https://doi.org/10.1038/199925a0

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