Leaf anatomy of Cordiera sessilis (Vell.) Kuntze (RUBIACEAE)

A study on the leaf anatomy of Cordiera sessilis (Rubiaceae), a native medicinal shrub from Brazilian Cerrado was carried out to contribute for species identification and provide support for future biochemical studies and medicinal application. Leaves were collected, fixed and processed by usual te...

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Main Authors: Thaiz Rodrigues Teixeira, Marlúcia Souza Pádua, Ana Hortência Fonsêca Castro
Format: Article
Language:English
Published: Universidade Estadual de Maringá 2016-12-01
Series:Acta Scientiarum: Biological Sciences
Subjects:
Online Access:https://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/29902
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author Thaiz Rodrigues Teixeira
Marlúcia Souza Pádua
Ana Hortência Fonsêca Castro
author_facet Thaiz Rodrigues Teixeira
Marlúcia Souza Pádua
Ana Hortência Fonsêca Castro
author_sort Thaiz Rodrigues Teixeira
collection DOAJ
description A study on the leaf anatomy of Cordiera sessilis (Rubiaceae), a native medicinal shrub from Brazilian Cerrado was carried out to contribute for species identification and provide support for future biochemical studies and medicinal application. Leaves were collected, fixed and processed by usual techniques, and studied by light and electron microscopy. Quantitative analyzes of stomata and trichomes were performed. The leaves showed typical characteristics of Rubiaceae family, like hypostomatic leaves, paracytic stomata, dorsiventral mesophyll and collateral bundles. Two types of vascular patterns were identified in the petiole: in distal part, the vascular system is arranged cylindrically surrounded by sclerenchyma sheath and in proximal part, the vascular system is arranged in U-shape coupled to sclerified cells. The micromorphological organization of leaf surface, epicuticular wax types, the petiole pattern and histochemical characteristics as the presence of druses, sand crystals and alkaloids and absence of raphids in the mesophyll, midrib and petiole are considerate representative characteristics of C. sessilis and may be useful in the species identification.
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spelling doaj.art-b2c18bd05add4f2f8e46c1b447b053952022-12-22T03:36:55ZengUniversidade Estadual de MaringáActa Scientiarum: Biological Sciences1679-92831807-863X2016-12-0138310.4025/actascibiolsci.v38i3.2990214294Leaf anatomy of Cordiera sessilis (Vell.) Kuntze (RUBIACEAE)Thaiz Rodrigues Teixeira0Marlúcia Souza Pádua1Ana Hortência Fonsêca Castro2Federal University of São João del-ReiFederal University of LavrasFederal University of São João del-Rei A study on the leaf anatomy of Cordiera sessilis (Rubiaceae), a native medicinal shrub from Brazilian Cerrado was carried out to contribute for species identification and provide support for future biochemical studies and medicinal application. Leaves were collected, fixed and processed by usual techniques, and studied by light and electron microscopy. Quantitative analyzes of stomata and trichomes were performed. The leaves showed typical characteristics of Rubiaceae family, like hypostomatic leaves, paracytic stomata, dorsiventral mesophyll and collateral bundles. Two types of vascular patterns were identified in the petiole: in distal part, the vascular system is arranged cylindrically surrounded by sclerenchyma sheath and in proximal part, the vascular system is arranged in U-shape coupled to sclerified cells. The micromorphological organization of leaf surface, epicuticular wax types, the petiole pattern and histochemical characteristics as the presence of druses, sand crystals and alkaloids and absence of raphids in the mesophyll, midrib and petiole are considerate representative characteristics of C. sessilis and may be useful in the species identification. https://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/29902MarmelinhoPlant anatomyHistochemical testsCerradoMedicinal plant
spellingShingle Thaiz Rodrigues Teixeira
Marlúcia Souza Pádua
Ana Hortência Fonsêca Castro
Leaf anatomy of Cordiera sessilis (Vell.) Kuntze (RUBIACEAE)
Acta Scientiarum: Biological Sciences
Marmelinho
Plant anatomy
Histochemical tests
Cerrado
Medicinal plant
title Leaf anatomy of Cordiera sessilis (Vell.) Kuntze (RUBIACEAE)
title_full Leaf anatomy of Cordiera sessilis (Vell.) Kuntze (RUBIACEAE)
title_fullStr Leaf anatomy of Cordiera sessilis (Vell.) Kuntze (RUBIACEAE)
title_full_unstemmed Leaf anatomy of Cordiera sessilis (Vell.) Kuntze (RUBIACEAE)
title_short Leaf anatomy of Cordiera sessilis (Vell.) Kuntze (RUBIACEAE)
title_sort leaf anatomy of cordiera sessilis vell kuntze rubiaceae
topic Marmelinho
Plant anatomy
Histochemical tests
Cerrado
Medicinal plant
url https://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/29902
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AT marluciasouzapadua leafanatomyofcordierasessilisvellkuntzerubiaceae
AT anahortenciafonsecacastro leafanatomyofcordierasessilisvellkuntzerubiaceae