Biological activity of <i>Paecilomyces genus</i> against <i>Toxocara canis</i> eggs

Saprophytic soil fungi can exert ovicidal and ovistatic effects on helminths with differing degrees of efficiency. The representatives of such fungi from temperate regions, <i>Paecilomyces lilacinus</i> (Thom) Samson and <i>P. marquandii</i> (Masse) Hughes, exhibit recognized...

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Autores principales: Basualdo Farjat, Juan Ángel, Ciarmela, María Laura, Sarmiento, Patricia L., Minvielle, Marta Cecilia
Formato: Articulo
Lenguaje:Inglés
Publicado: 2000
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Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/131963
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Sumario:Saprophytic soil fungi can exert ovicidal and ovistatic effects on helminths with differing degrees of efficiency. The representatives of such fungi from temperate regions, <i>Paecilomyces lilacinus</i> (Thom) Samson and <i>P. marquandii</i> (Masse) Hughes, exhibit recognized ovicidal activity on some nematodes. We evaluated the action in vitro of <i>P. lilacinus</i> and <i>P. marquandii</i> on the zoonotic canine roundworm eggs of <i>Toxocara canis</i>. Eggs exposed and unexposed to fungal samples were observed by both light and scanning electron microscopy on days 4, 7 and 14 post-inoculation. Ovicidal activity of <i>P. lilacinus</i> on <i>T. canis</i> eggs was considered to be high and that of <i>P. marquandii</i> to be intermediate.