| Registro completo |
| Provedor de dados: |
Biological Sciences
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| País: |
Brazil
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| Título: |
Leaf anatomy of Cordiera sessilis (Vell.) Kuntze (RUBIACEAE)
Leaf anatomy of Cordiera sessilis (Vell.) Kuntze (Rubiaceae)
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| Autores: |
Teixeira, Thaiz Rodrigues
Pádua, Marlúcia Souza
Castro, Ana Hortência Fonsêca
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| Data: |
2016-12-08
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| Ano: |
2016
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| Palavras-chave: |
2.03.00.00-0 e 2.03.02.03-7 Marmelinho
Plant anatomy
Histochemical tests
Cerrado
Medicinal plant Botânica “Marmelinho”
Plant anatomy
Histochemical tests
Cerrado
Medicinal plant
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| Resumo: |
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.
A study on the leaf anatomy of Cordiera sessilis (Rubiaceae), a native medicinal shrub from Brazilian Cerrado was carried out to identify features that may be useful in species recognition. Leaves were collected, fixed and processed by usual techniques, and studied by light and electron microscopy. Quantitative analyzes of stomata and trichomes were performed. In addition to the typical anatomical characteristics of Rubiaceae leaves, 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, crystal sand and alkaloids and absence of raphides in the mesophyll, midrib and petiole are considerate representative characteristics of C. sessilis and may be useful in the species recognition.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/29902
10.4025/actascibiolsci.v38i3.29902
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| Editor: |
Universidade Estadual De Maringá
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| Relação: |
http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/29902/pdf
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| Formato: |
application/pdf
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| Fonte: |
Acta Scientiarum. Biological Sciences; v. 38, n. 3 (2016); 355-364
Acta Scientiarum. Biological Sciences; v. 38, n. 3 (2016); 355-364
1807-863X
1679-9283
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| Direitos: |
Direitos autorais 2016 Acta Scientiarum. Biological Sciences
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