Interconnected idioblasts in Peltaea polymorpha: a novel component of the mucilage-secretory apparatus in Malvaceae

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorRodrigues, Tatiane Maria-
Autor(es): dc.creatorDe Almeida, Aline Rodrigues-
Autor(es): dc.creatorDe Nicolai, Juan-
Autor(es): dc.creatorDos Santos, Igor Soares-
Autor(es): dc.creatorMachado, Silvia Rodrigues-
Data de aceite: dc.date.accessioned2025-08-21T22:53:33Z-
Data de disponibilização: dc.date.available2025-08-21T22:53:33Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1093/aobpla/plae063-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/300738-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/300738-
Descrição: dc.descriptionThe anatomical and cytological characteristics of the mucilage-secretory system have been widely studied in Malvaceae. However, conflicting information regarding the morphological nature of secretory structures exists, and some remain poorly understood. In this sense, some secretory structures in Malvaceae are not characterized as typical isolated idioblasts, canals, or cavities. Here, we describe a novel component of the mucilage-secretory apparatus in the Malvaceae family. Samples of the shoot apex, mature stem and fully expanded leaves were obtained from adult Peltaea polymorpha, which grow in the Cerrado (Brazilian savanna). The samples were processed using standard light and transmission electron microscopy methods. Mucilage cells occurred in the cortex and pith of petioles and stems, and in the midrib of leaves. These cells originate early in the stem apex from successive divisions of cells of the fundamental meristem, resulting in a row of interconnected secretory cells enveloped by a sheath of parenchyma cells devoid of secretory activity. Mucilage is stored in both protoplast and apoplast. In the same row, some cells filled with mucilage become very swollen and compress the neighbouring idioblasts that become flattened. This phenomenon results in a sandwich panel structure consisting of the swollen transversal walls of adjacent cells. As the differentiation progresses, the transversal walls of the rowed mucilage cells became very swollen, multilayered, and porous. Cytoplasmic strands cross such transversal walls connecting rowed cells. Mucilage-secreting cells in P. polymorpha are interconnected idioblasts and represent a novel component of the mucilage-secretory apparatus in Malvaceae. These findings open new avenues for understanding the structure and dynamics of mucilage-secreting cells from a functional perspective.-
Descrição: dc.descriptionDepartment of Biodiversity and Biostatistics Institute of Biosciences of Botucatu São Paulo State University (UNESP), Professor Antônio Celso Wagner Zagnin street 250, District of Rubião Júnior, São Paulo State-
Descrição: dc.descriptionInterunit Postgraduate Program in Plant Biology Institute of Biosciences of Botucatu and Rio Claro São Paulo State University (UNESP)-
Descrição: dc.descriptionDepartment of Biodiversity and Biostatistics Institute of Biosciences of Botucatu São Paulo State University (UNESP), Professor Antônio Celso Wagner Zagnin street 250, District of Rubião Júnior, São Paulo State-
Descrição: dc.descriptionInterunit Postgraduate Program in Plant Biology Institute of Biosciences of Botucatu and Rio Claro São Paulo State University (UNESP)-
Idioma: dc.languageen-
Relação: dc.relationAoB PLANTS-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectInterconnected secretory cells-
Palavras-chave: dc.subjectmucilage secretion-
Palavras-chave: dc.subjectPeltaea polymorpha (A. St.-Hill) Krapov. & Cristóbal-
Palavras-chave: dc.subjectrowed idioblasts-
Palavras-chave: dc.subjecttransversal walls-
Título: dc.titleInterconnected idioblasts in Peltaea polymorpha: a novel component of the mucilage-secretory apparatus in Malvaceae-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.