Bioprospecting Fluorescent Pseudomonas from the Brazilian Amazon for the Biocontrol of Signal Grass Foliar Blight

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorSENAI-
Autor(es): dc.contributorIFMT-
Autor(es): dc.contributorUniversidade Federal de Lavras (UFLA)-
Autor(es): dc.creatorVicentini, Samara Nunes Campos-
Autor(es): dc.creatorCarvalho, Giselle de-
Autor(es): dc.creatorKrug, Loane Dantas-
Autor(es): dc.creatorNunes, Tiago Calves-
Autor(es): dc.creatorda Silva, Abimael Gomes-
Autor(es): dc.creatorMoreira, Silvino Intra-
Autor(es): dc.creatorGonçalves, Lucas Matheus de Deus Paes-
Autor(es): dc.creatorSilva, Tatiane Carla-
Autor(es): dc.creatorCeresini, Paulo Cezar-
Data de aceite: dc.date.accessioned2025-08-21T19:12:28Z-
Data de disponibilização: dc.date.available2025-08-21T19:12:28Z-
Data de envio: dc.date.issued2023-03-02-
Data de envio: dc.date.issued2023-03-02-
Data de envio: dc.date.issued2022-06-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3390/agronomy12061395-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/241944-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/241944-
Descrição: dc.descriptionBiological control is considered the only viable integrated disease management practice for controlling the widely distributed and destructive foliar blight and sudden death disease caused by the fungus Rhizoctonia solani AG-1 IA on signal grass (Urochloa brizantha) pastures. Since major signal grass varieties are highly susceptible and fungicide sprays are not labeled for grass pasture cropping systems, biological control is sought as an alternative for managing this fungal disease. In this study, 24 fluorescent Pseudomonas isolates obtained from naturally suppressive soils from the Amazon biome were bio-prospected for their role as biocontrol agents against R. solani AG-1 IA. Based on in vitro antagonism, three isolates (Amana, Poti, and Yara) were selected for further in vivo assays. Multilocus phylogenetic analysis indicated that Amana and Yara were grouped into the Pseudomonas putida group while Poti was grouped into the Pseudomonas asplenii group, and could well constitute a new Pseudomonas species. For in vivo biocontrol assays, the biocontrol agents were applied either via seed-treatment or via foliar spray. All three isolates produced siderophores and solubilized phosphate, while Amana and Poti showed protease and chitinase in vitro activity. Foliar application of P. putida Amana from Amazonian suppressive soils resulted in a significant reduction of the foliar blight disease severity on signal grass. We discuss further steps for the development and labeling of Pseudomonas-based biofungicides for managing the foliar blight disease on signal grass pastures in Brazil.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionDepartment of Crop Protection Agricultural Engineering and Soil (Departamento de Fitossanidade Engenharia Rural e Solos) UNESP—São Paulo State University-
Descrição: dc.descriptionBiomass Innovation Institute SENAI-
Descrição: dc.descriptionFederal Institute of Mato Grosso IFMT-
Descrição: dc.descriptionDepartment of Plant Pathology UFLA Federal University of Lavras-
Descrição: dc.descriptionDepartment of Crop Protection Agricultural Engineering and Soil (Departamento de Fitossanidade Engenharia Rural e Solos) UNESP—São Paulo State University-
Descrição: dc.descriptionFAPESP: 11/23050-8-
Descrição: dc.descriptionFAPESP: 11/50150-3-
Descrição: dc.descriptionFAPESP: 13/11944-0-
Descrição: dc.descriptionFAPESP: 17/03403--
Idioma: dc.languageen-
Relação: dc.relationAgronomy-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectbiological control-
Palavras-chave: dc.subjectintegrated management-
Palavras-chave: dc.subjectphylogenetic analysis-
Palavras-chave: dc.subjectRhizoctonia solani AG-1 IA-
Palavras-chave: dc.subjectsudden death-
Título: dc.titleBioprospecting Fluorescent Pseudomonas from the Brazilian Amazon for the Biocontrol of Signal Grass Foliar Blight-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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