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Information Journal Paper

Title

In Vitro Effects of Streptomyces tyrosinase on the Egg and Adult Worm of Toxocara vitulorum

Pages

  67-75

Abstract

 Background: Several species of streptomycetes, saprophytic bacteria found widely distributed in soil, water and plants, produce bioactive compounds such as intra and extracellular hydrolases including lytic enzymes which reflecting on their importance in the biological control of insects and parasites. This study assessed the in vitro effects of Streptomyces Tyrosinase, produced from Streptomyces spp. isolated from Egyptian soil, on animal-parasitic nematode Toxocara vitulorum, in terms of egg development and adult worm’ s cuticular structure, and as an alternative strategy to alleviate this infection. Methods: This study was conducted at the National Research Centre, Egypt in 2018. Five different concentrations of Tyrosinase, ranged from 1%-30% were tested against the development of T. vitulorum eggs. The concentration induced the highest inhibitory activity was tested against adult T. vitulorum cuticle, which is essential for the protective and nutritive functions. The results were compared with those observed in the egg development and worm cuticle following incubation in Streptomyces Protease (as a reference enzyme). Results: Compared to Streptomyces Protease, higher inhibitory activity on T. vitulorum egg development and extreme cuticular alterations of the treated adult worms had been observed following 24 h exposure to Streptomyces Tyrosinase. Once the cuticle had been damaged, the enzyme would be able to penetrate deeper into the internal tissues of the nematode and caused more widespread disruption. Conclusion: The current study could offer a promising Bio-control agent, Streptomyces Tyrosinase, against T. vitulorum alternative to the more expensive synthetic anthelmintics.

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    APA: Copy

    SHALABY, Hatem, ASHRY, Heba, SAAD, Moataza, & FARAG, Tarek. (2020). In Vitro Effects of Streptomyces tyrosinase on the Egg and Adult Worm of Toxocara vitulorum. IRANIAN JOURNAL OF PARASITOLOGY, 15(1), 67-75. SID. https://sid.ir/paper/740199/en

    Vancouver: Copy

    SHALABY Hatem, ASHRY Heba, SAAD Moataza, FARAG Tarek. In Vitro Effects of Streptomyces tyrosinase on the Egg and Adult Worm of Toxocara vitulorum. IRANIAN JOURNAL OF PARASITOLOGY[Internet]. 2020;15(1):67-75. Available from: https://sid.ir/paper/740199/en

    IEEE: Copy

    Hatem SHALABY, Heba ASHRY, Moataza SAAD, and Tarek FARAG, “In Vitro Effects of Streptomyces tyrosinase on the Egg and Adult Worm of Toxocara vitulorum,” IRANIAN JOURNAL OF PARASITOLOGY, vol. 15, no. 1, pp. 67–75, 2020, [Online]. Available: https://sid.ir/paper/740199/en

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