Functional trade-offs in volume allocation to xylem cell types in 75 species from the Brazilian savanna Cerrado

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorUniv Brasilia (UnB)-
Autor(es): dc.contributorUniv Quebec Chicoutimi-
Autor(es): dc.creatorDoria, Larissa Chacon-
Autor(es): dc.creatorSonsin-Oliveira, Julia-
Autor(es): dc.creatorRossi, Sergio-
Autor(es): dc.creatorMarcati, Carmen Regina-
Data de aceite: dc.date.accessioned2025-08-21T18:47:39Z-
Data de disponibilização: dc.date.available2025-08-21T18:47:39Z-
Data de envio: dc.date.issued2022-11-29-
Data de envio: dc.date.issued2022-11-29-
Data de envio: dc.date.issued2022-07-22-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1093/aob/mcac095-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/237806-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/237806-
Descrição: dc.descriptionBackground and Aims Xylem is a crucial tissue for plant survival, performing the functions of water transport, mechanical support and storage. Functional trade-offs are a result of the different assemblages of xylem cell types within a certain wood volume. We assessed how the volume allocated to different xylem cell types can be associated with wood functional trade-offs (hydraulics, mechanical and storage) in species from the Cerrado, the Brazilian savanna. We also assessed the xylem anatomical characters linked to wood density across species. Methods We analysed cross-sections of branches collected from 75 woody species belonging to 42 angiosperm families from the Cerrado. We estimated the wood volume fraction allocated to different cell types and performed measurements of vessel diameter and wood density. Key Results The largest volume of wood is allocated to fibres (0.47), followed by parenchyma (0.33) and vessels (0.20). Wood density is positively correlated to cell wall (fibre and vessel wall), and negatively to the fractions of fibre lumen and gelatinous fibres. We observed a trade-off between hydraulics (vessel diameter) and mechanics (cell wall fraction), and between mechanics and storage (parenchyma fraction). The expected positive functional relationships between hydraulics (vessel diameter) and water and carbohydrate storage (parenchyma and fibre lumen fractions) were not detected, though larger vessels are linked to a larger wood volume allocated to gelatinous fibres. Conclusions Woody species from the Cerrado show evidence of functional trade-offs between water transport, mechanical support and storage. Gelatinous fibres might be potentially linked to water storage and release by their positive relationship to increased vessel diameter, thus replacing the functional role of parenchyma and fibre lumen cells. Species can profit from the increased mechanical strength under tension provided by the presence of gelatinous fibres, avoiding expensive investments in high wood density.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionFonds de Recherche du Quebec Nature et Technologies (FRQNET), Canada-
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.descriptionUniv Estadual Paulista UNESP, Fac Ciencias Agronom, Dept Ciencia Florestal Solos & Ambiente, Ave Univ,3780, Botucatu, SP, Brazil-
Descrição: dc.descriptionUniv Estadual Campinas UNICAMP, Inst Biol, Dept Botan, BR-13038970 Campinas, SP, Brazil-
Descrição: dc.descriptionUniv Brasilia UnB, Inst Ciencias Biol, Dept Biol Vegetal, Programa Pos Grad Botan, BR-70919970 Brasilia, DF, Brazil-
Descrição: dc.descriptionUniv Quebec Chicoutimi, Dept Sci Fdn, Chicoutimi, PQ, Canada-
Descrição: dc.descriptionUniv Estadual Paulista UNESP, Fac Ciencias Agronom, Dept Ciencia Florestal Solos & Ambiente, Ave Univ,3780, Botucatu, SP, Brazil-
Descrição: dc.descriptionCAPES: 88887.468867/2019-00-
Descrição: dc.descriptionCAPES: 88887.508247/2020-00-
Descrição: dc.descriptionFonds de Recherche du Quebec Nature et Technologies (FRQNET), Canada: 304990-
Descrição: dc.descriptionFAPESP: 2003/13578-9-
Descrição: dc.descriptionFAPESP: 2009/17778-9-
Descrição: dc.descriptionFAPESP: 2012/50413-7-
Descrição: dc.descriptionFAPESP: 2015/14954-1-
Descrição: dc.descriptionFAPESP: 2019/09417-8-
Descrição: dc.descriptionCNPq: 304715/2018-2-
Formato: dc.format445-456-
Idioma: dc.languageen-
Publicador: dc.publisherOxford Univ Press-
Relação: dc.relationAnnals Of Botany-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectFibre-
Palavras-chave: dc.subjectgelatinous fibre-
Palavras-chave: dc.subjectParenchyma-
Palavras-chave: dc.subjectParenchyma-like fibre-
Palavras-chave: dc.subjectXylem anatomy-
Palavras-chave: dc.subjectVessel-
Palavras-chave: dc.subjectWood density-
Título: dc.titleFunctional trade-offs in volume allocation to xylem cell types in 75 species from the Brazilian savanna Cerrado-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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