Antagonistic activity of the fungus Pochonia chlamydosporia on mature and immature Toxocara canis eggs

dc.creatorMaciel, A. S.
dc.creatorFreitas, L. G.
dc.creatorFigueiredo, L. D.
dc.creatorCampos, A. K.
dc.creatorMello, I. N. K.
dc.date2017-11-09T10:49:13Z
dc.date2017-11-09T10:49:13Z
dc.date2012-03-23
dc.date.accessioned2023-09-27T21:31:06Z
dc.date.available2023-09-27T21:31:06Z
dc.identifier1469-8161
dc.identifierhttps://doi.org/10.1017/S0031182012000418
dc.identifierhttp://www.locus.ufv.br/handle/123456789/12936
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8961934
dc.descriptionIn vitro tests were performed to evaluate the ability of 6 isolates of the nematophagous fungus Pochonia chlamydosporia to infect immature and mature Toxocara canis eggs on cellulose dialysis membrane. There was a direct relationship between the number of eggs colonized and the increase in the days of interaction, as well as between the number of eggs colonized and the increase in the concentration of chlamydospores (P < 0·05). Immature eggs were more susceptible to infection than mature eggs. The isolate Pc-04 was the most efficient egg parasite until the 7th day, and showed no difference in capacity to infect mature and immature eggs in comparison to Pc-07 at 14 and 21 days of interaction, respectively. Isolate Pc-04 was the most infective on the two evolutionary phases of the eggs at most concentrations, but its ability to infect immature eggs did not differ from that presented by the isolates Pc-07 and Pc-10 at the inoculum level of 5000 chlamydospores. Colonization of infective larvae inside or outside the egg was observed in treatments with the isolates Pc-03, Pc-04, Pc-07 and Pc-10. The isolate Pc-04 of P. chlamydosporia has great biological capacity to destroy immature and mature T. canis eggs in laboratory conditions.
dc.formatpdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherParasitology
dc.relationVolume 139, Issue 8, p. 1074-1085, July 2012
dc.rightsOpen Access
dc.subjectToxocara canis
dc.subjectPochonia chlamydosporia
dc.subjectNematophagous fungi
dc.subjectBiological control
dc.subjectDogs
dc.titleAntagonistic activity of the fungus Pochonia chlamydosporia on mature and immature Toxocara canis eggs
dc.typeArtigo


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