Structural Characterisation of the Leaf of Bauhinia monandra Kurz (Fabaceae - Cercidoideae)

Antunes, Mariana Novais; Pereira, Fabiano Rodrigues; Leitão, Carlos André Espolador

doi:10.1590/1678-4324-2021200618

Cited by 3 publications

(5 citation statements)

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“…Uniseriate non-glandular trichomes were also found in Asteraceae family, such as in Mikania genus [23]. Type III is biseriate non-glandular trichome (Figure 1 g, h), formed by 2 series with a variable number of cells (4)(5)(6)(7)(8)(9)(10)(11)(12) and measuring between 40 and 160 µm in length.…”

Section: Resultsmentioning

confidence: 95%

“…Trichomes are important botanical markers in systematic investigations, identification and diagnosis of fragmented and powdered plant drugs. Several studies have demonstrated that the micromorphology of trichomes is diagnostic at the family, genus or even species level and that they can aid in the detection of adulterants or substitutes of vegetable raw materials, even when the sample is pulverized [1,4,5,6].…”

Section: Introductionmentioning

confidence: 99%

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Trichome Microscopy as a Diagnostic Tool for Species of the Solidago Complex: S. chilensis and S. microglossa

Monchak,

Santos,

Koetz

et al. 2023

Braz. arch. biol. technol.

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The plant species identification process is one of the most critical stages of quality control of plant raw material. Microscopy serves as the most accessible means for this purpose. Epidermal appendages, such as trichomes, are important botanical markers of plant drugs, taking into account their presence or absence and micromorphology. Trichomes are useful in detecting adulterants or substitutes and in authenticating plant raw materials. The genus Solidago includes two morphologically similar South American species, S. chilensis Meyen and S. microglossa DC. (syn. S. chilensis var. megapotamica). The two species belong to the "S. chilensis" complex and are commonly called arnica-do-mato or arnica. They are HIGHLIGHTS• Solidago comprises two very similar South American species: S. chilensis and S. microglossa.• S. chilensis and S. microglossa can be differentiated microscopically.• Trichomes are sufficient to differentiate S. chilensis and S. microglossa even in a powder form.• The absence or presence of the uniseriate and/or biseriate no glandular trichomes determines the species.

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Section: Resultsmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Trichome Microscopy as a Diagnostic Tool for Species of the Solidago Complex: S. chilensis and S. microglossa

Monchak,

Santos,

Koetz

et al. 2023

Braz. arch. biol. technol.

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“…The mesophyll of B. ungulata is dorsiventral in the cross-section, with a layer of palisade parenchyma; in B. cheilantha and B. pentandra, two layers of the same parenchyma are observed with drusiferous idioblasts; The spongy parenchyma showed 2-4 layers in B. cheilantha and B. pentandra, with small intercellular spaces; In B. ungulata, the spongy parenchyma has 4-5 layers, with large intercellular spaces; Prismatic crystal idioblasts were observed in the vascular systems of secondary bundles, mainly in B. pentandra (Pereira et al, 2018). Antunes et al (2021) described the species B. monandra as a dorsiventral mesophyll with two layers of palisade parenchyma and about two layers of spongy parenchyma. Also, the authors observed the presence of drusen-like crystals in the mesophyll.…”

Section: Resultsmentioning

confidence: 97%

“…The midrib of the species is flat-convex, with collateral vascular bundles delineated by two sclerenchyma ribbons, with a crystalline sheath and collenchymatous cortex with sparse drusiferous idioblasts; The median portion of the midrib of B. cheilantha has an arch-shaped central vascular bundle, "V" shaped in B. pentandra and "U" shaped in B. ungulata (Pereira et al, 2018). Antunes et al (2021) described the B. monandra uniseriate epidermis adjacent to the abaxial epidermis, with two layers of collenchyma, 5-6 collateral vascular bundles interconnected by a band of parenchyma and surrounded by a thick layer adjacent to the phloem, constituted by septate fibers, in addition to describing the species with drusen-like crystals in the parenchyma.…”

Section: Resultsmentioning

confidence: 99%

Anatomical and histochemical characterization of stem and leaves of Bauhinia pulchella Benth. (Fabaceae)

Carvalho,

Magalhães,

Rodrigues

et al. 2023

Braz. J. Biol.

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Bauhinia pulchella Benth. (Fabaceae), is native to Brazil and popularly known as pata-de-bode. In folk medicine, it is used to treat diabetes. Pharmacological studies have demonstrated different properties, such as cytotoxic and antioxidant, and different chemical constituents, such as essential oil, triterpenoids, steroids, among others. In order to highlight the morphological differences of the species B. pulchella from the others of the genus, and its pharmacological potential, the present study aimed to carry out the anatomical and histochemical characterization of the stem and leaves of B. pulchella. Usual methods in plant anatomy were used in the preparation of semi-permanent slides containing cross sections of the stem, petiole and leaf blade and paradermal sections of the leaf blade for analysis in light microscopy and polarized light. Histochemical tests were also performed to localize the metabolites in the stem and leaf blade. The stem of B. pulchella has a cylindrical outline, the bark is composed of 7-8 layers of cells and discontinuously distributed sclerenchyma; petiole presents flat convex contour, prominences in the adaxial region, concentric amphicrivral vascular bundle, surrounding a small concentric anfivasal intramedullary bundle, adaxially two accessory bundles and tector trichomes; leaf blade with anisocytic and tetracytic stomata on the adaxial surface and anisocytic, tetracytic and anomocytic on the abaxial surface; and midrib with plain-convex outline, 1-2 layers of collenchyma and covering trichomes. Characteristics that differ from other species of the genus Bauhinia. Alkaloids, phenolic compounds, lipophilic compounds, lignin, triterpenes, steroids and tannins were observed in the species. The results are fundamental for the pharmacobotanical standardization of the studied species.

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“…These stomata are generally modified and often described as unable to control the ostiole aperture (Stpiczyn ´ska et al, 2005;. In B. monandra, nectary stomata are visibly modified, with an appearance quite distinct from the leaf stomata (Antunes et al, 2021), and most likely are unable to regulate their opening.…”

Section: Discussionmentioning

confidence: 99%

STRUCTURE AND HISTOCHEMISTRY OF THE FLORAL NECTARY OF <i>Bauhinia monandra</i> (FABACEAE)

Rodrigues,

Leitão

2023

Acta biol. Colomb.

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The structure and histochemistry of the floral nectary of Bauhinia monandra Kurz (Fabaceae) were investigated. Besides possessing medicinal properties, this tree is also used in the recovery of degraded areas and urban arborization. Nectaries samples were obtained from newly bloomed flowers. The nectary was located on the tubular hypanthium. This tube was partially coated by a nectary epidermis, whose cells had secretory features such as a relatively large nucleus, a dense cytoplasm, and small vacuoles. Subjacent to the nectary epidermis, there was a nectary parenchyma with eight to fifteen layers of cells which also have secretory features. Both the nectary epidermis and nectary parenchyma possessed starch grains. Subjacent to the nectary parenchyma passed collateral to amphicribral concentric vascular bundles constituted by more phloem than xylem. Although these vascular bundles did not emit terminations directed to the nectary parenchyma, the arrangement of the latter about the former suggests the supply of nectar precursors by the vascularisation. In the basal region of the hypanthium tube occurred modified stomata which were probably the main route of nectar release; and tector trichomes, possibly involved in the nectar retention.

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Structural Characterisation of the Leaf of Bauhinia monandra Kurz (Fabaceae - Cercidoideae)

Cited by 3 publications

References 44 publications

Trichome Microscopy as a Diagnostic Tool for Species of the Solidago Complex: S. chilensis and S. microglossa

Trichome Microscopy as a Diagnostic Tool for Species of the Solidago Complex: S. chilensis and S. microglossa

Anatomical and histochemical characterization of stem and leaves of Bauhinia pulchella Benth. (Fabaceae)

STRUCTURE AND HISTOCHEMISTRY OF THE FLORAL NECTARY OF <i>Bauhinia monandra</i> (FABACEAE)

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