Caracterização anatômica e histoquímica de raízes e folhas de plântulas de Anacardium occidentale L. (Anacardiaceae)

Reis, Ana Luísa Lopes Ernesto; Silva, Daniele Souza da; Costa, Ana Letícia Rodrigues; Chagas, Davi Borges das

doi:10.1590/s0100-67622014000200001

Cited by 12 publications

(8 citation statements)

References 18 publications

(10 reference statements)

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“…However, this configuration is not standard for all botanical families and, depending on the location, may vary among plant organs. In this sense, epithelia of ducts and cavities with one or more layers are reported in Anacardiaceae (Reis et al, 2014) and Burseraceae . The thin-walled epithelial cells of different shapes, sizes and degrees of turgidity observed in this study may be related to the ability of these cells to produce, store and externalize secretions at different stages of the secretory process (Rodrigues & Machado 2012).…”

Section: Discussionmentioning

confidence: 99%

Structural and histochemical attributes of secretory ducts and cavities in leaves of four species of Calophyllaceae J. Agardh in Amazonian savannas

et al. 2021

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This study represents an important contribution to the structural, histochemical and biological understanding of ducts and cavities in leaves of four species of Calophyllaceae that occur in Amazonian savannas.• Samples of adult leaves were processed using light, scanning and transmission electron microscopy, as per usual methods for plant anatomy.• In paradermal sections, the lumina of ducts are elongated while those of cavities are short. Ducts occur exclusively in the central rib and are abundant in Kielmeyera rubriflora Cambess and Kielmeyera coriacea Mart. and Zucc and larger than in Calophyllum brasiliense Cambess and Caraipa densifolia Mart. In mesophyll, the type of secretory structure and distribution pattern of the ducts and cavities are distinct. In most species, the secreted metabolites are similar and consist of phenolic compounds, lipids, essential oils with oleoresins, mucilage, neutral polysaccharides, proteins and alkaloids, except in K. coriacea, which does not contain oleoresin. The secretion is probably synthesized by mitochondria, rough endoplasmic reticulum, ribosomes and dictyosomes and is externalized toward the lumen by granulocrine and eccrine processes.• In addition to being of diagnostic value for species identification, the attributes of the lumen shape, type of secretory structure, distribution pattern, identified metabolites and secretion mechanism are important for understanding the biological roles of ducts and cavities. The identified metabolites reveal a capacity for adaptation, resistance and protection from the action of herbivores and pathogens, and in water retention.

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Section: Discussionmentioning

confidence: 99%

Structural and histochemical attributes of secretory ducts and cavities in leaves of four species of Calophyllaceae J. Agardh in Amazonian savannas

et al. 2021

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“…These two species are used very similarly as both medicinal plants and food, and their occurrence and exploitation are often concurrent. Distinctive characters between the two species were identified to enable them to be distinguished (Rocha et al, 2013; Reis et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

“…Its leaves possess medicinal properties for the treatment of diarrhea and skin lesions (Agra et al, 2007). Development of efficient tools for the botanical distinction between A. humile and A. occidentale is desirable, considering that the leaves from both species present medicinal properties and close morphologies (Reis et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Anatomy, Histochemistry, and Antifungal Activity of Anacardium humile (Anacardiaceae) Leaf

et al. 2015

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Leaves of Anacardium humile are used in Brazilian traditional medicine for the treatment of intestinal disturbances and skin lesions. This study aimed to define leaf diagnostic structural characters, to propose a new method of phytochemical analysis of secretions, prospect flavonoids and alkaloids, and to evaluate their inhibitory activity on Candida albicans. Common anatomical, phytochemical, and microbiological methods were used. Leaves of Anacardium occidentale were used as a reference for the structural analyses. The main structural characters were closed vascular system, absence of ducts at the medulla, bilateral mesophyll, absence of bundle sheath extension, and secretory idioblasts at the xylem. The ducts present schizogenous origin, and secreting activity is restricted to the initial phases of leaf blade expansion. The proposed new phytochemical method is practical and inexpensive and has potential for wide application. The abundance of tannins and flavonoids is related to medicinal use. A single peak in high-performance liquid chromatography indicated the presence of a pure substance not previously reported. The extract had a strong inhibitory effect on C. albicans. The obtained results confirm the potential of A. humile for the prospection of new bioactive compounds.

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“…43 Fatty compounds found in the cuticle, facing to both leaf surfaces, and the presence of lignin were observed in the region of vascular bundles and sclerenchyma midrib. Reis et al 66 showed the presence of lignins in the wall of xylem cells in histochemical assays of Anacardium occidentale. Almeida 67 also reports the presence of lignin in xylem fibres of midrib and fibres in the mesophyll of leaflets Schinus terebinthifolius Raddi.…”

Section: 35mentioning

confidence: 99%

Pharmacognostic Characterization of Spondias mombin L. (Anacardiaceae)

Vasconcelos¹,

Vasconcelos²,

Randau³

2016

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Background: Spondias mombin L. is fruit specie found in Tropical America and the coast of Africa, popularly known as cajazeira. Several researches with extract of leaflets show a diversity of promising pharmacological activities such as antibacterial activity, antiviral against dengue virus type 2, anti diabetic, among others. Objective: This paper aims to study the anatomical characteristics, phytochemical and histochemical from leaves of this species. Materials and Methods: Cross and paradermic sections from leaves were submitted to double staining with astra blue and safranin process for the anatomical study. Anatomical analysis of the structures was performed using an optical microscope. For ultra structure analysis, the leaf fragments, after processing and gold coating, were observed under scanning electron microscopy (SEM). The phytochemical analyses were performed using thin layer chromatography and the histochemical analyses using specific reagents for each metabolite group. Results: The leaf has anomocytic and tetracytic stomata distributed on abaxial surface. The midrib has convex symmetry with collateral vascular bundles in a closed arc disposition. The phytochemical showed the presence of mono and sesquiterpenes, triterpenes and steroids, hydrolysable tannins, phenylpropanoid glycosides, cinnamic derivatives and flavonoids. The histochemical tests allow us to state that phenolic compounds are found in the palisade parenchyma cells. Lignins can be found in woody vascular bundles and in perivascular sclerenchyma fibres. The volatile oils were evidenced in the schizogenous cavity, present in the parenchyma of the midrib. Conclusion: The results allowed characterizing anatomically the leaves of this species, outlining a profile of its phytochemical constituents and, in addition, determining which anatomical structures of storage of these metabolites by the plant.

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Caracterização anatômica e histoquímica de raízes e folhas de plântulas de Anacardium occidentale L. (Anacardiaceae)

Cited by 12 publications

References 18 publications

Structural and histochemical attributes of secretory ducts and cavities in leaves of four species of Calophyllaceae J. Agardh in Amazonian savannas

Structural and histochemical attributes of secretory ducts and cavities in leaves of four species of Calophyllaceae J. Agardh in Amazonian savannas

Anatomy, Histochemistry, and Antifungal Activity of Anacardium humile (Anacardiaceae) Leaf

Pharmacognostic Characterization of Spondias mombin L. (Anacardiaceae)

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