Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1011934
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dc.contributor.authorCARVALHO, D. D. C.pt_BR
dc.contributor.authorLOBO JUNIOR, M.pt_BR
dc.contributor.authorMARTINS, I.pt_BR
dc.contributor.authorINGLIS, P. W.pt_BR
dc.contributor.authorMELLO, S. C. M.pt_BR
dc.date.accessioned2015-03-20T11:11:11Zpt_BR
dc.date.available2015-03-20T11:11:11Zpt_BR
dc.date.created2015-03-20pt_BR
dc.date.issued2014pt_BR
dc.identifier.citationTropical Plant Pathology, Brasília, DF, v. 39, n. 5, p. 384-391, set./out. 2014.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1011934pt_BR
dc.descriptionBiological control of seed-borne pathogens has shown to enhance germination and physiological quality of seeds. The objectives of this study were to evaluate the in vitro antagonistic effect of five Trichoderma harzianum isolates (CEN287, CEN288, CEN289, CEN290, and CEN316) against Fusarium oxysporum f. sp. phaseoli (Foxy) and test its potential use in seed treatment. Initially, pathogen and antagonists were grown in paired cultures at 25ºC, from which samples were assessed using scanning electron microscopy (SEM). Then, clean or Foxy-infected seeds were treated with conidial suspension of the antagonists. Percent of Foxy-infected seeds and normal seedlings were evaluated at seven and nine days of incubation, respectively. All but one Trichoderma isolate (CEN290) inhibited Foxy mycelial growth. SEM analysis revealed that only one Trichoderma isolate (CEN287) showed parasitic interaction with Foxy. Two isolates (CEN287 and CEN316) significantly reduced the Foxy incidence and enhanced seed germination, though less effective than the fungicide mixture (carboxin + thiram). A principal component analysis indicated the importance of volatile metabolites in reducing Foxy incidence on common bean seeds. CEN287 Trichoderma harzianum isolate formed a single group due to its increase in germination rate of Foxyinfected seeds.pt_BR
dc.languageenpt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.titleBiological control of Fusarium oxysporum f. sp. phaseoli by Trichoderma harzianum and its use for common bean seed treatment.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2015-03-20T11:11:11Zpt_BR
dc.subject.thesagroFeijãopt_BR
dc.subject.thesagroPhaseolus vulgarispt_BR
dc.subject.thesagroControle biológicopt_BR
dc.subject.thesagroFusarium oxysporumpt_BR
dc.subject.thesagroSementept_BR
dc.subject.thesagroTrichoderma harzianumpt_BR
dc.contributor.institutionDANIEL D. C. CARVALHO, UNB; MURILLO LOBO JUNIOR, CNPAF; IRENE MARTINS, CENARGEN; PETER W. INGLIS, bolsista CENARGEN; SUELI CORREA MARQUES DE MELLO, CENARGEN.pt_BR
Appears in Collections:Artigo em periódico indexado (CNPAF)

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