Mycorrhizal networks facilitate the colonization of legume roots by a symbiotic nitrogen-fixing bacterium

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorNovais, Candido Barreto de-
Autor(es): dc.creatorSbrana, Cristiana-
Autor(es): dc.creatorJesus, Ederson da Conceição-
Autor(es): dc.creatorRouws, Luc Felicianus Marie-
Autor(es): dc.creatorGiovannetti, Manuela-
Autor(es): dc.creatorAvio, Luciano-
Autor(es): dc.creatorSiqueira, José Oswaldo-
Autor(es): dc.creatorSaggin Júnior, Orivaldo José-
Autor(es): dc.creatorSilva, Eliane Maria Ribeiro da-
Autor(es): dc.creatorFaria, Sergio Miana de-
Data de aceite: dc.date.accessioned2026-02-09T12:32:15Z-
Data de disponibilização: dc.date.available2026-02-09T12:32:15Z-
Data de envio: dc.date.issued2020-09-02-
Data de envio: dc.date.issued2020-09-02-
Data de envio: dc.date.issued2020-03-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/42810-
Fonte completa do material: dc.identifierhttps://doi.org/10.1007/s00572-020-00948-w-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1163282-
Descrição: dc.descriptionArbuscular mycorrhizal fungi (AMF) absorb and translocate nutrients from soil to their host plants by means of a wide network of extraradical mycelium (ERM). Here, we assessed whether nitrogen-fixing rhizobia can be transferred to the host legume Glycine max by ERM produced by Glomus formosanum isolate CNPAB020 colonizing the grass Urochloa decumbens. An H-bridge experimental system was developed to evaluate the migration of ERM and of the GFP-tagged Bradyrhizobium diazoefficiens USDA 110 strain across an air gap compartment. Mycorrhizal colonization, nodule formation in legumes, and occurrence of the GFP-tagged strain in root nodules were assessed by optical and confocal laser scanning microscopy. In the presence of non-mycorrhizal U. decumbens, legume roots were neither AMF-colonized nor nodulated. In contrast, G. formosanum ERM crossing the discontinuous compartment connected mycorrhizal U. decumbens and G. max roots, which showed 30–42% mycorrhizal colonization and 7–11 nodules per plant. Fluorescent B. diazoefficiens cells were detected in 94% of G. max root nodules. Our findings reveal that, besides its main activity in nutrient transfer, ERM produced by AMF may facilitate bacterial translocation and the simultaneous associations of plants with beneficial fungi and bacteria, representing an important structure, functional to the establishment of symbiotic relationships.-
Idioma: dc.languageen-
Publicador: dc.publisherSpringer Nature-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceMycorrhiza-
Palavras-chave: dc.subjectArbuscular mycorrhizal fungi-
Palavras-chave: dc.subjectPlant symbioses-
Palavras-chave: dc.subjectBacterial migration-
Palavras-chave: dc.subjectExtraradical mycelium-
Palavras-chave: dc.subjectCommon mycorrhizal network-
Palavras-chave: dc.subjectMicorriza arbuscular-
Palavras-chave: dc.subjectBactérias fixadoras de nitrogênio-
Palavras-chave: dc.subjectPlantas - Simbiose-
Palavras-chave: dc.subjectMigração bacteriana-
Palavras-chave: dc.subjectMicélio extrarradicular-
Título: dc.titleMycorrhizal networks facilitate the colonization of legume roots by a symbiotic nitrogen-fixing bacterium-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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