Apoplast-symplast compartmentalization and functional traits of iron and aluminum in promeristematic tissues of nematode induced galls on Miconia spp.

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dc.contributor.authorArriola, Igor Abba
dc.contributor.authorFigueiredo, Maurílio Assis
dc.contributor.authorSouza, Daniela Boanares de
dc.contributor.authorFrança, Marcel Giovanni Costa
dc.contributor.authorIsaias, Rosy Mary dos Santos
dc.date.accessioned2020-06-30T16:15:33Z
dc.date.available2020-06-30T16:15:33Z
dc.date.issued2020
dc.description.abstractThe nutritive tissues of galls induced by Ditylenchus gallaeformans (Nematoda) have promeristematic capacity, which may turn these galls into sinks of Al on their Melastomataceae Al-accumulating hosts. Such a sink of Al may affect gall growth and mineral nutrient intake. Based on the fact that galls are good models for plant developmental studies, we aimed to understand how Al-accumulating host plants in the Cerrado environment deal with Al toxicity in subcellular levels. Here, we used the ICP-OES method to check the variations on mineral nutrients, and the morin, hematoxylin, and Prussian blue stainings for Al and Fe histolocalization in galls induced on four Miconia species of the Brazilian Cerrado. We confirmed the new Al-accumulating feature for two Miconia species of the Cerrado environment. Furthermore, we found that Al accumulates in lesser concentrations in gall tissues than in non-galled tissues of the Miconia hosts. Staining methods indicated that the polyphenols avoid Albinding to the apoplast and the nucleolus of the promeristematic cells, and mediated its binding to parenchyma cell walls. As well, we inferred that Fe3þ is transported by xylem and stored in gall parenchyma, where it is reduced to Fe2þ, being available in gall nutritive cells. Our results demonstrated an Al compartmentalization between the apoplast and symplast of the inner cell layers in galls, as well as indicated the phenolics action against Al-toxicity and toward Fe availability for the diet of Ditylenchus gallaeformans.pt_BR
dc.identifier.citationARRIOLA, Igor Abba et al. Apoplast-symplast compartmentalization and functional traits of iron and aluminum in promeristematic tissues of nematode induced galls on Miconia spp. Plant Physiology and Biochemistry, v. 154, p. 360-368, 2020. Disponível em: <https://www.sciencedirect.com/science/article/pii/S0981942820303120?via%3Dihub>. Acesso em: 29 jun. 2020.pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.plaphy.2020.06.031pt_BR
dc.identifier.issn0981-9428
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/12401
dc.identifier.uri2https://www.sciencedirect.com/science/article/pii/S0981942820303120?via%3Dihubpt_BR
dc.language.isoen_USpt_BR
dc.rightsrestritopt_BR
dc.subjectBrazilian cerrado polyphenolspt_BR
dc.subjectReactive oxygen speciespt_BR
dc.subjectMetal-rich gallsFe supplypt_BR
dc.subjectMelastomataceaept_BR
dc.titleApoplast-symplast compartmentalization and functional traits of iron and aluminum in promeristematic tissues of nematode induced galls on Miconia spp.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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