Origin and ontogeny of the xylopodium in Cerrado legumes: Role of the hypocotyl and ecological significance

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorCozin, Bruno B.-
Autor(es): dc.creatorLeal, Alice S.-
Autor(es): dc.creatorDaibes, L. Felipe-
Autor(es): dc.creatorFidelis, Alessandra-
Autor(es): dc.creatorMartins, Aline R.-
Data de aceite: dc.date.accessioned2025-08-21T22:49:11Z-
Data de disponibilização: dc.date.available2025-08-21T22:49:11Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.flora.2024.152630-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/306342-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/306342-
Descrição: dc.descriptionBud-bearing underground organs play a role on plant persistence in different fire-prone ecosystems worldwide, but their origin, development and anatomical features are still a matter of inquiry. The xylopodium, for instance, seem to originate from the hypocotyl or primary root, or both, usually associated with tuberous roots. Because this structure is commonly found in legumes across the Brazilian savannas (Cerrado), understanding its formation is important for unveiling its relevance for post-fire resprouting. Here we aimed to investigate the role of the hypocotyl on the development of six Cerrado legume shrubs, as well as histochemical features and ecological implications from seedlings to adult plants in this frequently-burned ecosystem. Seeds of the six study species were collected in central Brazil, set to germinate and cultivated until the stages of four, six, nine, and twelve months. At each stage, the region correspondent to the hypocotyl was delimited and anatomical and histochemical analyses performed. Over time, the hypocotyl region underwent a tuberization process, during which the cortex was progressively replaced by the formation of secondary xylem through intense cambial activity. Before the twelve-month-old stage, all species presented buds, mainly cotyledonary, and reacted to starch, phenols and pectins. Early hypocotyl tuberization drives the formation of the xylopodium from seedlings to adulthood, and the presence of buds and the accumulation of reserves during its formation is a fundamental process driving species’ persistence after fire.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionLaboratório de Estudos em Morfologia e Anatomia Vegetal Universidade Estadual Paulista (UNESP) Faculdade de Engenharia Department of Biology and Zootechnics – Passeio Monção, 226, Zona Norte-
Descrição: dc.descriptionLab of Vegetation Ecology Universidade Estadual Paulista (UNESP) Institute of Biosciences Department of Biodiversity, Av. 24A, 1515-
Descrição: dc.descriptionLaboratório de Estudos em Morfologia e Anatomia Vegetal Universidade Estadual Paulista (UNESP) Faculdade de Engenharia Department of Biology and Zootechnics – Passeio Monção, 226, Zona Norte-
Descrição: dc.descriptionLab of Vegetation Ecology Universidade Estadual Paulista (UNESP) Institute of Biosciences Department of Biodiversity, Av. 24A, 1515-
Descrição: dc.descriptionFAPESP: 2015/06743-0-
Descrição: dc.descriptionFAPESP: 2020/02745-7-
Descrição: dc.descriptionCNPq: 312689/2021-7-
Descrição: dc.descriptionCNPq: 455183/2014–7-
Idioma: dc.languageen-
Relação: dc.relationFlora: Morphology, Distribution, Functional Ecology of Plants-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAnatomy-
Palavras-chave: dc.subjectBelowground organs-
Palavras-chave: dc.subjectBuds-
Palavras-chave: dc.subjectFabaceae-
Palavras-chave: dc.subjectReserve compounds-
Título: dc.titleOrigin and ontogeny of the xylopodium in Cerrado legumes: Role of the hypocotyl and ecological significance-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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