Biocontrol potential of Waitea circinata, an orchid mycorrhizal fungus, against the rice blast fungus

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dc.creatorCarvalho, Jacqueline Campos Borba de
dc.creatorSousa, Kellen Cristhina Inácio
dc.creatorBrito, Denise C.
dc.creatorChaibub, Amanda Abdallah
dc.creatorLuzini, Aline Pereira
dc.creatorCortes, Márcio Vinícius de Carvalho Barros
dc.creatorFilippi, Marta Cristina Corsi de
dc.creatorKato, Lucília
dc.creatorVaz, Boniek Gontijo
dc.creatorCosta, Helber Barcellos
dc.creatorRomão, Wanderson
dc.creatorAraújo, Leila Garcês de
dc.date.accessioned2018-04-16T12:32:01Z
dc.date.available2018-04-16T12:32:01Z
dc.date.issued2015
dc.description.abstractRice blast (Magnaporthe oryzae) occurs in rice pro- ducing areas worldwide. Microorganisms are capable of pro- ducing secondary metabolites that can control the pathogen. The present study aimed to identify the class of the secondary metabolites produced by the mycorrhizal fungus Waitea circinata obtained from a Cerrado orchid and to assess the in vitro and in vivo antagonism of the extracts against M. oryzae. Three mycorrhizal extracts (crude, mycelial and lyophilized) were obtained. In the in vitro antagonism assay, W. circinata produced the largest inhibition zone. The crude extract reduced the mycelial growth of the pathogen by 75 %, inhibited the formation of appressoria by 100 % and reduced the AUDPC by 25 % compared to the control. Analysis of the crude extract by electro spray ionization Fourier transform ion cyclotron resonance mass spectrometry revealed the presence of benzophenones. The results suggest that W. circinata ex- tract has the potential for rice blast control.pt_BR
dc.identifier.citationCARVALHO, Jacqueline C. B.; SOUSA, Kellen C. I.; BRITO, Denise C.; CHAIBUB, Amanda A.; LUZINI, Aline P.; CÔRTES, Márcio V. C. B.; FILIPPI, Marta C. C.; KATO, Lucília; VAZ, Boniek G.; COSTA, Helber B.; ROMÃO, Wanderson; ARAÚJO, Leila G. Biocontrol potential of Waitea circinata, an orchid mycorrhizal fungus, against the rice blast fungus. Tropical Plant Pathology, Brasília, v. 40, n. 3, p. 151-159, 2015.pt_BR
dc.identifier.doi10.1007/s40858-015-0042-8
dc.identifier.issn1982-5676
dc.identifier.issne- 1983-2052
dc.identifier.urihttp://repositorio.bc.ufg.br/handle/ri/14496
dc.language.isoengpt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentEscola de Agronomia - EA (RG)pt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectPyricularia oryzaept_BR
dc.subjectMycorrhizapt_BR
dc.subjectBioactive productpt_BR
dc.subjectRicept_BR
dc.titleBiocontrol potential of Waitea circinata, an orchid mycorrhizal fungus, against the rice blast funguspt_BR
dc.typeArtigopt_BR

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