Morphoanatomical Changes in Eucalyptus grandis Leaves Associated with Resistance to Austropuccinia psidii in Plants of Two Ages

Página do item simplificado
dc.contributor.authorFurtado, Edson Luiz [UNESP]
dc.contributor.authorSilva, André Costa da
dc.contributor.authorSilva, Érica Araújo Rodrigues
dc.contributor.authorRodella, Roberto Antônio [UNESP]
dc.contributor.authorSoares, Marcus Alvarenga
dc.contributor.authorSerrão, José Eduardo
dc.contributor.authorde Pieri, Cristiane [UNESP]
dc.contributor.authorZanuncio, José Cola
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade Federal do Rio Grande do Sul
dc.contributor.institutionInstituto de Pesquisas e Estudos Florestais (IPEF)
dc.contributor.institutionUniversidade Federal dos Vales do Jequitinhonha e Mucuri
dc.contributor.institutionUniversidade Federal de Viçosa (UFV)
dc.date.accessioned2023-07-29T13:38:43Z
dc.date.available2023-07-29T13:38:43Z
dc.date.issued2023-01-01
dc.description.abstractThe fungus Austropuccinia psidii infects young tissues of Eucalyptus plants until they are two years old in the nursery and field, causing Myrtaceae rust. The characteristics making older eucalypt leaves resistant to A. psidii and the reason for the low levels of this pathogen in older plants need evaluations. The aim of this study was to evaluate the morphological differences between Eucalyptus grandis leaves of different growth stages and two plant ages to propose a visual phenological scale to classify E. grandis leaves according to their maturation stages and to evaluate the time of leaf maturation for young and adult plants. A scale, based on a morphological differentiation for E. grandis leaves, was made. The color, shape and size distinguished the leaves of the first five leaf pairs. Anatomical analysis showed a higher percentage of reinforced tissue, such as sclerenchyma-like tissue and collenchyma, greater leaf blade thickness, absence of lower palisade parenchyma in the mature leaves and a higher number of cavities with essential oils than in younger ones. Changes in anatomical characteristics that could reduce the susceptibility of older E. grandis leaves to A. psidii coincide with the time of developing leaf resistance. Reduced infection of this pathogen in older plants appears to be associated with a more rapid maturation of their leaf tissues.en
dc.description.affiliationDepartamento de Proteção Vegetal Faculdade de Ciências Agronômicas Universidade Estadual Paulista, São Paulo
dc.description.affiliationDepartamento de Fitossanidade Universidade Federal do Rio Grande do Sul, Rio Grande do Sul
dc.description.affiliationInstituto de Pesquisas e Estudos Florestais (IPEF), São Paulo
dc.description.affiliationDepartamento de Botânica Instituto de Biociências de Botucatu Universidade Estadual Paulista, São Paulo
dc.description.affiliationUniversidade Federal dos Vales do Jequitinhonha e Mucuri, Minas Gerais
dc.description.affiliationDepartamento de Biologia Geral Universidade Federal de Viçosa, Minas Gerais
dc.description.affiliationDepartamento de Entomologia/BIOAGRO Universidade Federal de Viçosa, Minas Gerais
dc.description.affiliationUnespDepartamento de Proteção Vegetal Faculdade de Ciências Agronômicas Universidade Estadual Paulista, São Paulo
dc.description.affiliationUnespDepartamento de Botânica Instituto de Biociências de Botucatu Universidade Estadual Paulista, São Paulo
dc.identifierhttp://dx.doi.org/10.3390/plants12020353
dc.identifier.citationPlants, v. 12, n. 2, 2023.
dc.identifier.doi10.3390/plants12020353
dc.identifier.issn2223-7747
dc.identifier.scopus2-s2.0-85146747816
dc.identifier.urihttp://hdl.handle.net/11449/248251
dc.language.isoeng
dc.relation.ispartofPlants
dc.sourceScopus
dc.subjectanatomy
dc.subjecteucalypts
dc.subjectleaf maturation scale
dc.subjectleaf stages
dc.subjectmorphological markers
dc.subjectMyrtaceae rust
dc.subjectontogenic resistance
dc.titleMorphoanatomical Changes in Eucalyptus grandis Leaves Associated with Resistance to Austropuccinia psidii in Plants of Two Agesen
dc.typeArtigo
unesp.author.orcid0000-0001-5505-7678[2]
unesp.author.orcid0000-0002-8725-3697[5]
unesp.author.orcid0000-0002-0477-4252[6]
unesp.author.orcid0000-0003-2026-281X[8]
unesp.departmentProteção Vegetal - FCApt

Arquivos

Coleções

Botucatu - FCA - Faculdade de Ciências Agronômicas
Artigos - Botânica - IBB