Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1165291
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dc.contributor.authorAJULO, A. A.
dc.contributor.authorOLIVEIRA, R. S. de
dc.contributor.authorBEZERRA, S. F.
dc.contributor.authorCOSTA, N. B.
dc.contributor.authorGONÇALVES, A. R.
dc.contributor.authorOLIVEIRA, M. I. de S.
dc.contributor.authorFILIPPI, M. C. C. de
dc.date.accessioned2024-07-02T13:55:53Z-
dc.date.available2024-07-02T13:55:53Z-
dc.date.created2024-07-02
dc.date.issued2024
dc.identifier.citationRevista Caatinga, v. 37, e11724, 2024.
dc.identifier.issn1983-2125
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1165291-
dc.descriptionGrain yields of rice (Oryza sativa) are affected globally by rice blast (Magnaporthe oryzae). The main objective of this study was to identify isolates of rhizobacterial antagonists of M. oryzae (BRM10781) and screen the most effective isolates for suppressing rice blast under greenhouse conditions. Two assays (E1 and E2) were performed with 22 treatments in a completely randomized design with three replicates. E1 investigated in vitro antagonism between 21 isolates and M. oryzae under laboratory conditions. The E2 experiments were conducted under greenhouse conditions, with rice cultivar BRS Primavera seeds in plastic trays containing 3 kg of fertilized soil. After 21 days, the rice leaves were spray-inoculated with a bacterial cell suspension (1 × 108 CFU) and M. oryzae (3 × 105 conidia.mL-1) or with water (absolute control). Seven isolates, Serratia marcescens (BRM65918, BRM65923, BRM65926, and BRM63532), Bacillus cereus (BRM65919), Stenotrophomonas nitritireducens (BRM65917), and Priestia megaterium (BRM65929), reduced radial growth of M. oryzae colonies from 80.26 to 77.33%. The best leaf blast severity reducers were Pseudomonas nitroreducens (BRM32112), B. thuringiensis (BRM65928), P. megaterium (BRM65916), S. marcescens (BRM65918), S. nematodiphila (BRM63522), and Enterobacter hormaechei (BRM65925), varying from 97 to 95% respectively. The isolate BRM65918 (S. marcescens) showed the best efficiency for both antagonism and disease suppression, indicating its potential as a bioproduct for the biocontrol of rice blast in rice plants.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectBioagents
dc.subjectBiocontrol
dc.subjectDisease suppression
dc.subjectBioagentes
dc.subjectBiocontrole
dc.subjectSupressão da doença
dc.titleScreening of bacterial isolates antagonists and suppressors of blast in rice plants.
dc.typeArtigo de periódico
dc.subject.thesagroArroz
dc.subject.thesagroOryza Sativa
dc.subject.thesagroInoculação
dc.subject.thesagroBrusone
dc.subject.thesagroAntagonismo
dc.subject.nalthesaurusMagnaporthe oryzae
dc.subject.nalthesaurusRice
dc.subject.nalthesaurusBlast disease
dc.subject.nalthesaurusInoculation methods
riaa.ainfo.id1165291
riaa.ainfo.lastupdate2024-07-02
dc.identifier.doihttps://doi.org/10.1590/1983-21252024v3711724rc
dc.contributor.institutionAKINTUNDE ABIODUN AJULO, UNIVERSIDADE FEDERAL DE GOIÁS
dc.contributor.institutionRODRIGO SILVA DE OLIVEIRA, UNIVERSIDADE FEDERAL DE GOIÁSeng
dc.contributor.institutionSORAIA F. BEZERRAeng
dc.contributor.institutionNIEDJA BEZERRA COSTA, UNIVERSIDADE ESTADUAL DO MARANHÃOeng
dc.contributor.institutionARIANY ROSA GONÇALVES, FUNDAÇÃO DE APOIO À PESQUISA E AO DESENVOLVIMENTOeng
dc.contributor.institutionMAYTHSULENE INACIO DE SOUZA OLIVEIRA, UNIVERSIDADE FEDERAL DE GOIÁSeng
dc.contributor.institutionMARTA CRISTINA CORSI DE FILIPPI, CNPAF.eng
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