Secretory system in Cuphea calophylla (Lythraceae): the bi-compartmentalization of epidermal cells, reclassification of glandular appendages, and the first report of hydathodes

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dc.contributor.authorSeixas, Diana Pacheco [UNESP]
dc.contributor.authorRodrigues, Tatiane Maria [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2023-07-29T13:24:17Z
dc.date.available2023-07-29T13:24:17Z
dc.date.issued2022-10-01
dc.description.abstractCuphea calophylla Cham. & Schltdl. is a Lythraceae subshrub that occurs in different environmental conditions. The aerial portions of this plant have medicinal properties and are used for soap production. We assessed the structure, ultrastructure, and histochemistry of the secretory cells and tissues in C. calophylla leaves and stems to further understand its secretory sys-tem. Hydathodes with epithem, tracheary elements, and water pores occur at the leaf border and are here described for the first time for a Cuphea species. Glandular appendages occur in leaves and stems and are characterized by a wide basis and a narrower apical portion that exuded sticky material. Ontogenetical analysis showed that these appendages are glandular emergences; phenolic compounds, mucilage, and lipids were produced in their cells which exhibited Golgi bodies, vesicles, smooth endoplasmic reticulum, oil drops, and plastids. The epidermis of the leaf blade has bi-compartmentalized secretory cells divided by a cellulosic septum in their equatorial region. These cells contain phenolic compounds in the upper compartment and mucilage in the lower compartment. Our results shed light on the sites producing bioactive compounds in C. calophylla and expand the knowledge on the secretory system in Lythraceae, promoting a reclassification and an identification of new structures.en
dc.description.affiliationGraduate Program in Biological Sciences (Botany) UNESP-São Paulo State University IBB-Institute of Biosciences of Botucatu, São Paulo State
dc.description.affiliationUNESP-São Paulo State University IBB-Institute of Biosciences of Botucatu, São Paulo State
dc.description.affiliationUnespGraduate Program in Biological Sciences (Botany) UNESP-São Paulo State University IBB-Institute of Biosciences of Botucatu, São Paulo State
dc.description.affiliationUnespUNESP-São Paulo State University IBB-Institute of Biosciences of Botucatu, São Paulo State
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdCAPES: 001
dc.description.sponsorshipIdCNPq: 431738/2018-1
dc.format.extent777-790
dc.identifierhttp://dx.doi.org/10.1139/cjb-2022-0031
dc.identifier.citationBotany, v. 100, n. 10, p. 777-790, 2022.
dc.identifier.doi10.1139/cjb-2022-0031
dc.identifier.issn1916-2804
dc.identifier.scopus2-s2.0-85139637846
dc.identifier.urihttp://hdl.handle.net/11449/247730
dc.language.isoeng
dc.relation.ispartofBotany
dc.sourceScopus
dc.subjectCuphea calophylla Cham. & Schltdl
dc.subjecthistology
dc.subjecthydathodes
dc.subjectsecretory emergences
dc.subjectsecretory epidermal cells
dc.subjectultra-structure
dc.titleSecretory system in Cuphea calophylla (Lythraceae): the bi-compartmentalization of epidermal cells, reclassification of glandular appendages, and the first report of hydathodesen
dc.typeArtigo
unesp.author.orcid0000-0001-6902-6012[1]

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