Effect of the fungus Pochonia chlamydosporia on Echinostoma paraensei (Trematoda: Echinostomatidae)

dc.creatorLelis, Rosane Teixeira
dc.creatorBraga, Fabio Ribeiro
dc.creatorCarvalho, Lorendane Millena de
dc.creatorPaula, Alessandra Teixeira de
dc.creatorAraujo, Juliana Milani
dc.creatorFausto, Mariana Costa
dc.creatorMaldonado Junior, Arnaldo
dc.creatorRodrigues, João Victor Facchini
dc.creatorSoares, Felippe Elias de Freitas
dc.creatorGarcia, Juberlan Silva
dc.creatorAraújo, Jackson Victor de
dc.date2015-04-22T14:23:11Z
dc.date2015-04-22T14:23:11Z
dc.date2014
dc.date.accessioned2023-09-27T00:14:51Z
dc.date.available2023-09-27T00:14:51Z
dc.identifierLELIS, Rosane Teixeira et al. Effect of the fungus Pochonia chlamydosporia on Echinostoma paraensei (Trematoda: Echinostomatidae). Acta Tropica, n.138, p.88-92, 2014.
dc.identifier0001-706X
dc.identifierhttps://www.arca.fiocruz.br/handle/icict/10108
dc.identifier10.1016/j.actatropica.2014.07.006
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8898925
dc.descriptionEchinostoma paraensei is a trematode of the genus Echinostoma that causes echinostomiasis in humans. The objectives of this study were to: evaluate the ovicidal activity of the nematophagous fungus Pochonia chlamydosporia (VC1 and VC4) on a solid medium 2% water–agar (2% WA) against E. paraensei eggs (assay A); evaluate ovicidal effect (destruction of eggs) of the isolate VC4 in supplemented culture media (assay B); and evaluate the ovicidal ability of the crude extract (VC4) on E. paraensei eggs (assay C). Eggs of E. paraensei (assay A) were placed in Petri dishes containing 2% WA with an isolate of the fungus P. chlamydosporia (VC1 and VC4) grown for 10 days, and without fungus as a control and evaluated regarding their destruction. In assay B, eggs of E. paraensei were placed in Petri dishes with different supplemented culture media and with VC4 isolate and the destruction of eggs was examined at the end of 25 days of interaction. In assay C, effects of the crude extract of P. chlamydosporia (VC4) on eggs were evaluated at the end of 7 days. In assay A, there was no difference (p > 0.05) in ovicidal activity among the tested isolates (VC1 and VC4); however, the highest percentage for ovicidal activity (type 3 effect) was demonstrated by the isolate VC4. In assay B, the culture medium starch–agar showed the best results for the destruction of the eggs, with a percentage of 46.6% at the end of the assay. In assay C, the crude extract of VC4 was effective in the destruction of E. paraensei eggs, with a percentage reduction of 53%. The results of this study demonstrate that a rich culture medium with a greater availability of carbon and nitrogen may interfere directly in the predatory characteristics of ovicidal fungi.
dc.formatapplication/pdf
dc.languageeng
dc.publisherElsevier
dc.rightsrestricted access
dc.subjectSaúde Pública
dc.subjectZoonoses
dc.subjectZoonosis
dc.subjectPublic Health
dc.subjectNematophagous fungi
dc.subjectPochonia chlamydosporia
dc.subjectEchinostoma paraensei
dc.subjectZoonosis
dc.subjectSalud Pública
dc.titleEffect of the fungus Pochonia chlamydosporia on Echinostoma paraensei (Trematoda: Echinostomatidae)
dc.typeArticle


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