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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/52285
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dc.creatorSamuel Alves dos Santospt_BR
dc.creatorLeonardo David Tuffi Santospt_BR
dc.creatorFrancisco André Ossamu Tanakapt_BR
dc.creatorBruno Francisco Sant'Anna-Santospt_BR
dc.creatorFabrício de Ávila Rodriguespt_BR
dc.creatorAcelino Couto Alfenaspt_BR
dc.date.accessioned2023-04-19T20:22:03Z-
dc.date.available2023-04-19T20:22:03Z-
dc.date.issued2019-
dc.citation.volume75pt_BR
dc.citation.spage53pt_BR
dc.citation.epage62pt_BR
dc.identifier.issn1526-4998pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/52285-
dc.description.resumoThe response to infection of Austropuccinia psidii in resistant (CLR-383) and susceptible (CLR-384) Eucalyptus grandis clones, exposed to herbicide drift of carfentrazone-ethyl, glyphosate and a mixture of these two herbicides, was evaluated at microscopic and physiological levels. Plants of the two clones showed symptoms of phytotoxicity caused by herbicide drift. However, net CO2 assimilation rate, height and shoot dry matter were lower in CLR-384 than in CLR-383. At the ultrastructure level, the leaves of both clones exposed to the herbicides showed thylakoid disorganization and accumulation of starch grains in the chloroplasts. Only plants of CLR-384 were infected by A. psidii, but when exposed to herbicide drift, rust severity was lower than in control plants. Six days after inoculation (dai), plants of this clone exposed to the herbicides had smaller uredinia than control plants. At 12 dai, non-herbicide treated plants showed normal uredinia, containing abundant urediniospores. By contrast, plants exposed to the herbicides were less colonized by the fungus, and the uredinia were smaller with reduced production of urediniospores, which were sometimes not even detected. Glyphosate and carfentrazone-ethyl herbicide drift reduce infection and uredinial formation of A. psidii and to some extent induce basal resistance in a susceptible clone of E. grandis.pt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICA - INSTITUTO DE CIÊNCIAS AGRÁRIASpt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofPest Management Science-
dc.rightsAcesso Restritopt_BR
dc.subjectFungal infectionpt_BR
dc.subjectMyrtle rustpt_BR
dc.subjectPhotosynthesispt_BR
dc.subjectTransmission electron microscopypt_BR
dc.subject.otherMicotoxicosespt_BR
dc.subject.otherFungos-da-ferrugempt_BR
dc.subject.otherFotossintesept_BR
dc.subject.otherMicroscopia eletrônica de transmissãopt_BR
dc.titleCarfentrazone-ethyl and glyphosate drift inhibits uredinial formation of Austropuccinia psidii on Eucalyptus grandis leavespt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://onlinelibrary.wiley.com/doi/epdf/10.1002/ps.5163pt_BR
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