Exposure of Toxocara canis eggs to Purpureocillium lilacinum as a biocontrol strategy: an experimental model evaluation

Abstract Purpureocillium lilacinum is a nematophagous fungus used in biological control against some parasites, including Toxocara canis. This study researched the infectivity of embryonated T. canis eggs after exposure to the fungus P. lilacinum. T. canis eggs were exposed to P. lilacinum for 15 or...

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Main Authors: Fernando de Souza Maia Filho, Anelise de Oliveira da Silva Fonseca, Júlia de Souza Silveira Valente, Cristiane Telles Baptista, Andrios da Silva Moreira, Sônia de Avila Botton, Luciana Pötter, Daniela Isabel Brayer Pereira
Format: Article
Language:English
Published: Colégio Brasileiro de Parasitologia Veterinaria 2019-03-01
Series:Revista Brasileira de Parasitologia Veterinária
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612019000100091&lng=en&tlng=en
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author Fernando de Souza Maia Filho
Anelise de Oliveira da Silva Fonseca
Júlia de Souza Silveira Valente
Cristiane Telles Baptista
Andrios da Silva Moreira
Sônia de Avila Botton
Luciana Pötter
Daniela Isabel Brayer Pereira
author_facet Fernando de Souza Maia Filho
Anelise de Oliveira da Silva Fonseca
Júlia de Souza Silveira Valente
Cristiane Telles Baptista
Andrios da Silva Moreira
Sônia de Avila Botton
Luciana Pötter
Daniela Isabel Brayer Pereira
author_sort Fernando de Souza Maia Filho
collection DOAJ
description Abstract Purpureocillium lilacinum is a nematophagous fungus used in biological control against some parasites, including Toxocara canis. This study researched the infectivity of embryonated T. canis eggs after exposure to the fungus P. lilacinum. T. canis eggs were exposed to P. lilacinum for 15 or 30 days and subsequently administered to Swiss mice (n=20). Control group consisted of mice who received T. canis embryonated eggs without fungal exposure. Forty-eight hours after infection, heart, lung, and liver from animals of each group were collected to assess larval recovery. The organs of mice that received embryonated eggs exposed to the fungus showed a lower average larval recovery (P<0.05) suggesting that exposure of T. canis eggs to P. lilacinum was able to reduce experimental infection. Under the evaluated conditions, the interaction time between the fungus and the parasite eggs was not a significant factor in larvae recovery. P. lilacinum may be considered a promising T. canis biological control agent. However, further studies are needed to determine a protocol for the use of this fungus as a biological control agent.
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spelling doaj.art-aeab74f0f8ea4126968a79ec022e498a2022-12-21T22:38:38ZengColégio Brasileiro de Parasitologia VeterinariaRevista Brasileira de Parasitologia Veterinária1984-29612019-03-01281919610.1590/s1984-29612019007S1984-29612019000100091Exposure of Toxocara canis eggs to Purpureocillium lilacinum as a biocontrol strategy: an experimental model evaluationFernando de Souza Maia FilhoAnelise de Oliveira da Silva FonsecaJúlia de Souza Silveira ValenteCristiane Telles BaptistaAndrios da Silva MoreiraSônia de Avila BottonLuciana PötterDaniela Isabel Brayer PereiraAbstract Purpureocillium lilacinum is a nematophagous fungus used in biological control against some parasites, including Toxocara canis. This study researched the infectivity of embryonated T. canis eggs after exposure to the fungus P. lilacinum. T. canis eggs were exposed to P. lilacinum for 15 or 30 days and subsequently administered to Swiss mice (n=20). Control group consisted of mice who received T. canis embryonated eggs without fungal exposure. Forty-eight hours after infection, heart, lung, and liver from animals of each group were collected to assess larval recovery. The organs of mice that received embryonated eggs exposed to the fungus showed a lower average larval recovery (P<0.05) suggesting that exposure of T. canis eggs to P. lilacinum was able to reduce experimental infection. Under the evaluated conditions, the interaction time between the fungus and the parasite eggs was not a significant factor in larvae recovery. P. lilacinum may be considered a promising T. canis biological control agent. However, further studies are needed to determine a protocol for the use of this fungus as a biological control agent.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612019000100091&lng=en&tlng=enGeohelminthsovicidal fungipublic healthenvironmental healthbiological control
spellingShingle Fernando de Souza Maia Filho
Anelise de Oliveira da Silva Fonseca
Júlia de Souza Silveira Valente
Cristiane Telles Baptista
Andrios da Silva Moreira
Sônia de Avila Botton
Luciana Pötter
Daniela Isabel Brayer Pereira
Exposure of Toxocara canis eggs to Purpureocillium lilacinum as a biocontrol strategy: an experimental model evaluation
Revista Brasileira de Parasitologia Veterinária
Geohelminths
ovicidal fungi
public health
environmental health
biological control
title Exposure of Toxocara canis eggs to Purpureocillium lilacinum as a biocontrol strategy: an experimental model evaluation
title_full Exposure of Toxocara canis eggs to Purpureocillium lilacinum as a biocontrol strategy: an experimental model evaluation
title_fullStr Exposure of Toxocara canis eggs to Purpureocillium lilacinum as a biocontrol strategy: an experimental model evaluation
title_full_unstemmed Exposure of Toxocara canis eggs to Purpureocillium lilacinum as a biocontrol strategy: an experimental model evaluation
title_short Exposure of Toxocara canis eggs to Purpureocillium lilacinum as a biocontrol strategy: an experimental model evaluation
title_sort exposure of toxocara canis eggs to purpureocillium lilacinum as a biocontrol strategy an experimental model evaluation
topic Geohelminths
ovicidal fungi
public health
environmental health
biological control
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612019000100091&lng=en&tlng=en
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