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dc.contributor.authorBonfim Junior, Mauro Ferreira-
dc.contributor.authorMInomoto, Mário Massayuki-
dc.contributor.authorAraújo Filho, Jerônimo Vieira de-
dc.date.accessioned2021-12-22T18:01:19Z-
dc.date.available2021-12-22T18:01:19Z-
dc.date.issued2020-
dc.identifier.citationBonfim Junior, Mauro Ferreira; Inomoto, Mário Massayuki; Araújo Filho, Jerônimo Vieira de. Phytonematodes infesting common bean fields in Brazil, and pathogenicity tests with Pratylenchus brachyurus. Arquivos do Instituto Biológico, v.88, 1-11, e00312020, 2021pt_BR
dc.identifier.issn1808-1657pt_BR
dc.identifier.urihttp://repositoriobiologico.com.br//jspui/handle/123456789/1114-
dc.description.abstractPhytonematodes are among the main pathogens of the common bean. In general, control practices that aim to control these pathogens have not been regularly adopted in Brazil. The objectives of the present study were to evaluate the occurrence of phytonematodes in dry bean fields in Paraná and São Paulo states and estimate the pathogenicity of Pratylenchus brachyurus to dry bean in glasshouse experiments. Root and soil were sampled for nematode extraction, identification and estimation of population density. Four glasshouse experiments with different initial population densities were carried out to evaluate the effect of P. brachyurus on the growth of dry bean plants. Six species of phytonematodes were detected, namely Helicotylenchus dihystera, P. brachyurus, Pratylenchus crenatus, Meloidogyne javanica, Meloidogyne incognita and Rotylenchulus sp. The spiral nematode H. dihystera was found in all samples and was the most abundant species in both states. The lesion nematode P. brachyurus was also frequent, reaching 94% in Paraná and 100% in São Paulo. The root-knot nematodes and Rotylenchulus sp. were reported only in São Paulo fields (45% and 18% frequency, respectively), and P. crenatus only in Paraná (12%). The most abundant nematode in the soil was H. dihystera, and in roots was P. crenatus. It was demonstrated that densities of 6.66 specimens of P. brachyurus per cm3 of soil provoke visible and measurable root decay. In conclusion, survey data showed low phytonematode densities and pathogenicity tests demonstrated that densities above 6.67 specimens of P. brachyurus per cm3 of soil cause damage to the dry bean roots.pt_BR
dc.language.isopt_BRpt_BR
dc.subjectPhaseolus vulgarispt_BR
dc.subjectHelicotylenchus dihysterapt_BR
dc.subjectMeloidogyne spp.pt_BR
dc.subjectRotylenchulus spp.pt_BR
dc.subjectRoot-lesion nematodespt_BR
dc.titlePhytonematodes infesting common bean fields in Brazil, and pathogenicity tests with Pratylenchus brachyurus.pt_BR
dc.identifier.doi10.1590/1808-1657000312020pt_BR
dc.description.editoraInstituto Biológicopt_BR
dc.description.localdapublicacaoSão Paulopt_BR
dc.identifier.tipoAbertopt_BR
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