Consulta: creatorFacets:"Tozin,Luiz Ricardo dos Santos"
Registros recuperados: 2
Data/hora: 10/06/2024 02:56:50

Revisiting hydropotes of Nymphaeaceae: ultrastructural features associated with glandular functions
Provedor de dados: 39
Autores: Tozin,Luiz Ricardo dos Santos; Rodrigues,Tatiane Maria.
ABSTRACT Hydropotes are specialized epidermal structures involved in water and mineral flux into and out of the plant body. We analyzed hydropote morphology of four species of Nymphaeaceae: Nymphaea caerulea, Nymphaea lotus, Nymphaea rubra, and Victoria amazonica. Leaf samples were processed following conventional techniques for plant anatomy and for scanning and transmission electron microscopy. We observed hydropotes comprising an elongated apical sharp-pointed portion with a base composed of two to three short specialized cells. In a later developmental stage the apical sharp-pointed portion was detached and the mature hydropotes comprised an upper lens-shaped cell, a bowl-shaped cell and a large foot cell. Ultrastructural analysis revealed that the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nymphaeae; Subcellular features; Structure; Trichomes; Victoria.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100031

Morphology and histochemistry of glandular trichomes in Hyptis villosa Pohl ex Benth. (Lamiaceae) and differential labeling of cytoskeletal elements
Provedor de dados: 39
Autores: Tozin,Luiz Ricardo dos Santos; Rodrigues,Tatiane Maria.
ABSTRACT Lamiaceae contains many species known for their aromatic properties that are produced by the production of essential oils in glandular trichomes. Hyptis is one of the most common genera of Lamiaceae in the Brazilian flora, and includes several species with medicinal value. However, studies on the morphology and functioning of their glandular trichomes are lacking. We analyzed the morphology, histochemistry and ultrastructure of the glandular trichomes in leaves of H. villosa, emphasizing the differential distribution of actin filaments and microtubules in cells secreting hydrophilic and lipophilic compounds. Four morphotypes of glandular trichomes were identified. Total lipid, terpenes, alkaloids, phenolic compounds, proteins and polysaccharides...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Actin microfilaments; Cytoskeleton; Glandular hairs; Microtubules; Ultrastructure.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000300330