Please use this identifier to cite or link to this item: https://repositorio.ufu.br/handle/123456789/44651
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dc.creatorFreitas, Natalia Martins-
dc.date.accessioned2025-01-28T17:37:01Z-
dc.date.available2025-01-28T17:37:01Z-
dc.date.issued2024-09-26-
dc.identifier.citationFREITAS, Natalia Martins. Nanopartículas no controle da mancha bacteriana (Xanthomonas campestris pv. vitians) na cultura da alface. 2024. 62 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Uberlândia, Uberlândia, 2024. DOI http://doi.org/10.14393/ufu.di.2024.5218.pt_BR
dc.identifier.urihttps://repositorio.ufu.br/handle/123456789/44651-
dc.description.abstractBacterial spot of lettuce caused by Xanthomonas campestris pv. vitians can result in significant losses for the crop. The use of nanoparticles offers a new approach to controlling the disease. This study aimed to investigate the use of nanoparticles in the control of bacterial spot and in the treatment of lettuce seeds. The toxicity of the nanoparticles was assessed by determining the inhibition of bacterial growth in vitro. Lettuce seeds were inoculated with the bacteria and treated with CuO, NiO, ZnO:1Ag and ZnOCl:5Ag nanoparticles, and the detection of the bacteria in the seeds, germination and emergence of the seedlings were evaluated. To control bacterial spot, CuO, NiO, ZnO:1Ag and ZnOCl:5Ag nanoparticles were sprayed on lettuce plants as preventive and curative application. In the preventive application, CuO, NiO, ZnO:1Ag, ZnOCl:5Ag, water and Kocide were sprayed, and 3 days later, the plants were inoculated with a bacterial suspension (108 CFU/mL). In the curative application, the plants were inoculated with the bacteria and, 3 days later, sprayed with the nanoparticles. Disease severity was assessed and the area under the disease progress curve was calculated. Seventeen nanoparticles inhibited bacterial growth in vitro. However, the nanoparticles did not reduce the presence of the bacteria in the seeds, and NiO reduced seed germination and seedling emergence. The preventive application of the nanoparticles CuO, NiO, ZnO:1Ag and ZnOCl:5Ag reduced the severity of bacterial spot on lettuce. The nanoparticles CuO, NiO, ZnO:1Ag and ZnOCl:5Ag are alternatives for the management of bacterial spot on lettuce.pt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.languageporpt_BR
dc.publisherUniversidade Federal de Uberlândiapt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectBactériapt_BR
dc.subjectDetecçãopt_BR
dc.subjectEmergênciapt_BR
dc.subjectGerminaçãopt_BR
dc.subjectLactuca sativapt_BR
dc.subjectSementespt_BR
dc.subjectBacteriapt_BR
dc.subjectDetectionpt_BR
dc.subjectEmergencept_BR
dc.subjectGerminationpt_BR
dc.subjectLactuca sativapt_BR
dc.subjectSeedspt_BR
dc.subjectNanopartículaspt_BR
dc.subjectNanoparticlespt_BR
dc.titleNanopartículas no controle de mancha bacteriana (Xanthomonas campestris pv. vitians) na cultura da alfacept_BR
dc.title.alternativeNanoparticles in the control of bacterial spot (Xanthomonas campestris pv. vitians) in lettuce cropspt_BR
dc.typeDissertaçãopt_BR
dc.contributor.advisor1Tebaldi, Nilvanira Donizete-
dc.contributor.advisor1Latteshttp://lattes.cnpq.br/0695770301548519pt_BR
dc.contributor.referee1Silva, Flávia Andrea Nery-
dc.contributor.referee1Latteshttps://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4794568T8&tokenCaptchar=03AFcWeA7-O_MhIrG9rABY53apEh5XoviwHVoWsfuJ71oxsARCYuaW4d90WxxEDLPQZFunA40A_Xa9bDwgPS2jCjaRM3Tq4P2NwBIrbY6UaldsDfefPB-i7o52Nsg-6KrKQsC82ySIzL9gKPpFDKhGgBMY9fAskBEj3MtUI_tbPqvACPFuIyKFEdP0bvQZBvv_Q6O6Rr9zbTKyA98Ot1boGFLghyHOIt3PMYKPXkFqbXgMi7o_MKq7yjV-wXWBaOgMug8eDGZZTGTfeiA95ef6sgPEh1gv7l3Vo9F_rmhHF9mkuMkiRy5WDghKbT1F11GuKpXP1qTmIsooHi-VhVbwfHh1JEqS5Hefn6Dh_SI-atybv2wDPva2JNEJJ8lQa-JnLWVtyzgXAoLaC0HGLoEuEJVRa9Mhai02BmEbSfrV2tEGGwgY97LfP8F8DPFNOqJ_zHtGM7xGw9_RmMXiyOjInfHqtYGSIQVWwxTmJf1XWz1YUEEL260gzfY6V6IPp2St98AMLAyHKkJjoK9jxZxSmWT_cjYnbYAO7Nwn_Ul3UU-ol8in4dJFeqgBiLUnU6OZjA_w1naNpCPIyKzV7BfheXVlQbbem6qTBo7gaIOW8cPrwKNz596zYw2-tKor1RYjzigIhTnXTApa9GtlLS8ZBrYNjEhO5_952ogb7ymlFmugDa4GeMDlX2gUdy7JzxBt_acU18tT_N_dULtg8p1MB4VLOCZLtdGbx-Pa-CNp1ssnpc3qr4ZlohFEpJltzjcSqK_m4X4LNUBWjELCmlGm8Ivnz-pjElHMaJpoWhzjv7PJTqk1FYnudPk_RIKjxd7dmxZyauctfYiDKl4d81wHCgUtgQQjnfJBn8wQ-QqfYp0--CXxEAFmYQcAy187MhCzCJDHuE3hQcVzidGDZhTKkQ9LsDXC6FGE1jpIAPn9NoPwqCmn8kExc0Ipt_BR
dc.contributor.referee2Nakasone, Alessandra Keiko-
dc.contributor.referee2Latteshttps://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4761137Y2&tokenCaptchar=03AFcWeA7vNNkNgVDnMfphCCFyyxIGWEtNV9CNLJN_U8uYbuqDo3mXD_torP7wGDLRsm6zYQxxd38g3UV7ar4Q3k-Bl9ZBgFWjEWoHXQgpsWT8xHoeFBOTiCUuzeUilU4rrzYJWmouTM-mD84Ex2gW2jPjBOOLYlbEH8cwFGPIWwHnY2uTMtKVNwWdviESRJgt3K1pk9RZ7P78Dlim1kSmLX7ulE2dL6JN1e1IVq7JYyowVkM7UwCLcoli1XT9RmkAJ9-rxaLNAVp0FmyMKx5WcFHjNjX4GNmju-GHIcxrDWDm2nwcnI4zm03u0iF53nU6EQc1iw9aCr-R1ztS2YU-VZ3JETr2gEoaoBJpxSQ9mAD5UM-YnlDCuSrdtPVh_8rYUyK-NUxx-GtdQD6B_o9rj4TYODCzvG-SHMg0inc5LgVPG_M_q-L9fsUD1STcamCRoxEaCJIKJ9KAwFojkIUQS-htg7EeFniDDSg_GWIGr4YPqculAw1Tt9rsVXStOJQUK0NKYs9JAROi5SJ9dR0amEq7T84tiv8v-5nlToSpoqjcFtOcN1v1SbqYaYbKXGxr3aW7Igg9NuF7QTHGvhydkFZDQdzpcnEpWvGPMEK3D0zLUCDsCv9E_iFt73hf6XK5AVrGFZZOw6ELnasCFd6NcPWbiqUGnuerSuK81--LGn2WixLq6l75hbcPyTjxabJO3lm79Jhn8KUc0aRNIhffY3NL8VlONT_sieZ85ou2aNKLdsGv6sSXXQ5bbEvWlcNdk6uDv-05RMYkmC0_cJpoAE9zK34GHcdxbNs8odnGha2AWLbEcJqp_KyppShX-fqmmmFwKtIYMBxP2u7JV_s8t4Se0j68tDY0MD1bC3NpQTubN2mO05UJAF2FWyxmN1p40qRcz0DDV6ZNUSWNzYHnN7fhax0UJZJ-LRbxcjUYdfdqisQ4yr35MRIpt_BR
dc.creator.Latteshttps://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4302763E3&tokenCaptchar=03AFcWeA6rJ2KjVID9t2ei9m0Yc1NLjnY7CeVKH_rG8xxBxYr_EOn3iQFe_bv47B0gvkrOy1OZYEnagnvyuEZzLW9XwXzdOEj3xL1G5oub6WXjxgeimKWc90tRVVPsWm3RPBXmCcWQEhpSg5DaxEDiVqtzgpt_V7nMw7Qo4isAvMNXm1-2pa1l2I4LjaSuoyAdWchl0IQ1k6rJGnPeppXY4imfp0Ln7kiWUtnzspItGu4XvMhGpAggGu-8xkxmRal80NU-Rgo6JcG2uO0s5cqSu5vcfjiEu7gfrePNFPaEj79uYBP5aaqFpR0k84tcK0SbhTZbvWSjiMl9nwVACHoSwcOcrVyGzGYLkxaCgFkFCMMHjZUdVk7IUcGCxlBihTMPcUr9d3KBI0_0tEFoXDyCPl4IsZIavle5E0rHOfakNTDNSA98d89N1uULFEaeakk2y8VgNpQTLEASXt40aWN7puPnZvXORiVV33zWaSiI3fWLCjY5RDIugitzADbz5drwRIFuBUIHIRdOwvyAHY9_0UkK0Mzhg8qk-dEvUODJgPXlYeDG-MdMR2Q7-abBv-dfYBKPTlHKyIFrj7xWrIdN97o8McODOPDSVl-9DN16o1FcXFmV3NVmQgoBpfr_MQLJlBfNHkLaRbewJNoh8PcoVENCRUyQQu78oHy82gWpwL7QFbXUrw--h_gcWf5_UTisdzanC3f-TRBNerlZBGCIl7Qom1GOMmR0IHBW6QWMRUl2_AFEqZFAe48ego4971bi5-BJ9fYe118NtD30AuhM8GfCeCGWP7eGAVaJgD4-W4rb_c3p-nXp4PEvjn2ieK1QPnXGmCZKnmskc2YWhm1-HVYUDsWrYKTR-B6Q4Oi75gTLpRdSSMDdK4_jsIY8amnaf4d4r0t_U4yXJ83dGU-Fi7Z24KrS8gd7-FLxMRmJvSneO4FjeAtdxMYpt_BR
dc.description.degreenameDissertação (Mestrado)pt_BR
dc.description.resumoA mancha bacteriana da alface, causada por Xanthomonas campestris pv. vitians, pode resultar em perdas significativas para a cultura. O uso de nanopartículas oferece uma nova abordagem para o controle da doença. Este trabalho teve como objetivo investigar a utilização de nanopartículas no controle da mancha bacteriana e no tratamento de sementes de alface. A toxicidade das nanopartículas foi avaliada por meio da determinação da inibição do crescimento bacteriano in vitro. As sementes de alface foram inoculadas com a bactéria e tratadas com nanopartículas de CuO, NiO, ZnO:1Ag e ZnOCl:5Ag. Foi avaliada a detecção da bactéria nas sementes, bem como a germinação e emergência das plântulas. Para o controle da mancha bacteriana, as nanopartículas de CuO, NiO, ZnO:1Ag e ZnOCl:5Ag foram pulverizadas em plantas de alface, em aplicação preventiva e curativa. Na aplicação preventiva, CuO, NiO, ZnO:1Ag, ZnOCl:5Ag, água e Kocide foram pulverizados, e 3 dias após, as plantas foram inoculadas com suspensão bacteriana (108 UFC/mL). Na aplicação curativa, as plantas foram inoculadas com a bactéria e, 3 dias depois, pulverizadas com as nanopartículas. A severidade da doença foi avaliada e a área abaixo da curva de progresso da doença foi calculada. Dezessete nanopartículas inibiram o crescimento bacteriano in vitro. No entanto, as nanopartículas não reduziram a presença da bactéria nas sementes, e NiO reduziu a germinação das sementes e a emergência das plântulas. A aplicação preventiva das nanopartículas CuO, NiO, ZnO:1Ag e ZnOCl:5Ag reduziu a severidade da mancha bacteriana da alface. As nanopartículas CuO, NiO, ZnO:1Ag e ZnOCl:5Ag são uma alternativa promissora para o manejo da mancha bacteriana na alface.pt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.programPrograma de Pós-graduação em Agronomiapt_BR
dc.sizeorduration62pt_BR
dc.subject.cnpqCNPQ::CIENCIAS AGRARIAS::AGRONOMIA::CIENCIA DO SOLO::MICROBIOLOGIA E BIOQUIMICA DO SOLOpt_BR
dc.identifier.doihttp://doi.org/10.14393/ufu.di.2024.5218pt_BR
dc.crossref.doibatchid643223d6-67cd-4ba0-aa79-db8ae25b6358-
dc.subject.autorizadoAgronomiapt_BR
dc.subject.autorizadoPragas agrícolas - Controlept_BR
dc.subject.autorizadoAlfacept_BR
dc.subject.autorizadoHorticulturapt_BR
dc.subject.autorizadoNanopartículaspt_BR
dc.subject.odsODS::ODS 15. Vida terrestre - Proteger, recuperar e promover o uso sustentável dos ecossistemas terrestres, gerir de forma sustentável as florestas, combater a desertificação, deter e reverter a degradação da Terra e deter a perda da biodiversidade.pt_BR
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