Anatomia e histoquímica das estruturas secretoras do caule de Spondias dulcis Forst. F. (Anacardiaceae)

Sant’Anna-Santos, Bruno Francisco; Thadeo, Marcela; Meira, Renata Maria Strozi Alves; Ascensão, Lia

doi:10.1590/s0100-67622006000300019

Cited by 23 publications

(8 citation statements)

References 29 publications

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“…The lumen of the ducts located in the phloem is also oval in cross section in young stems of Anacardium occidentale. 39 These characteristics corroborate the study by Santos et al 41 which indicates the presence of secretory cavities in S. dulcis and as well as in S. tuberosa leaves. 34 …”

Section: Lithraea Molleoidessupporting

confidence: 88%

“…39 Similar features were observed in stem of Spondias dulcis. 41 Silva et al 34 reported the presence of angular chollenchyma in the adaxial surface, and angular type tending to lamellar in the abaxial surface in Spondias tuberosa leaflets. According to Metcalfe & Chalk 37 and Cronquist, 42 the presence of secretory structures is a common feature for members of the Anacardiaceae family, where the presence of secreting latex resiniferous channels or ducts can be checked and usually associated with the phloem.…”

Section: Phytochemical Prospectionmentioning

confidence: 99%

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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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Section: Lithraea Molleoidessupporting

confidence: 88%

Section: Phytochemical Prospectionmentioning

confidence: 99%

Pharmacognostic Characterization of Spondias mombin L. (Anacardiaceae)

Vasconcelos¹,

Vasconcelos²,

Randau³

2016

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“…6B, F-J). A formação do tecido de cicatrização resulta da formação de novas células a partir da capacidade proliferativa do parênquima (Dickison 2000), sendo observada em resposta ao fl úor (Azevedo 1995), chuva ácida (Silva et al 2005; Sant'Anna- Santos et al 2006b), microorganismos (Dickison 2000) e herbicidas (Tuffi - . No tecido de cicatrização houve acúmulo de compostos intensamente corados de verde pelo azul de toluidina (Figs.…”

Section: (Faces Adaxial (A-e) E Abaxial (F-j))unclassified

Toxicidade e acúmulo de flúor em hortaliças nas adjacências de uma fábrica de alumínio

Sant’Anna-Santos

Azevedo

2010

Acta Bot. Bras.

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Acta bot. bras. 24(4): 952-963. 2010. IntroduçãoO fl úor, poluente atmosférico extremamente fi totóxico (Weinstein & Davison 2003), pode ser liberado na atmosfera durante a produção de alumínio, tijolos, vidros e aço (Fornasiero 2001). Nas plantas, o fl úor penetra principalmente pela folha (Fortes et al. 2003) que é o órgão mais estudado para avaliação do impacto causado por poluentes (Silva et al. 2000) e o principal sítio de acumulação deste elemento (Ledbetter et al. 1960). Entretanto, algumas espécies vegetais são capazes de acumular grandes quantidades de fl úor em suas folhas sem apresentar injúrias visuais (Arndt et al. 1995), o que torna o uso apenas da sintomatologia inadequado na avaliação do efeito de substâncias fi totóxicas (Tuffi Santos et al. 2007 (Peixoto et al. 2005) pois pode aumentar signifi cativamente a absorção e acúmulo desse elemento e causar fl uorose dentária e-ou óssea, além de efeitos mutagênicos (Mohamed & Chandler 1977; WHO 2002;Jones et al. 2005). O fl úor ingerido é absorvido rapidamente pelo trato gastrointestinal, carregado pela corrente sanguínea e excretado via sistema renal ou é incorporado aos tecidos calcifi cados, sendo que a maior parte do elemento incorporado ao esqueleto e aos dentes tem uma meia-vida biológica de vários anos (WHO 2002 RESUMO -(Toxicidade e acúmulo de fl úor em hortaliças nas adjacências de uma fábrica de alumínio). Com o objetivo de avaliar o potencial de acumulação de fl úor e o percentual deste elemento removido pela lavagem, quatro espécies de hortaliças foram expostas em área poluída. Spondias dulcis foi utilizada como bioindicadora de reação e apresentou sintomas típicos em resposta ao poluente. Somente a salsa apresentou sintomas. Apesar de aparentemente sadias, as folhas das outras espécies utilizadas para estudos microscópicos, exceto da cebolinha, evidenciaram alterações na superfície, principalmente associados aos estômatos. Houve redução na espessura do limbo, mais acentuada no manjericão e na cebolinha, havendo formação de tecido de cicatrização na couve e condensação do conteúdo das células epidérmicas na salsa. As folhas subuladas e eretas da cebolinha favoreceram o menor acúmulo do poluente; já na salsa, as folhas laminares, recortadas e paralelas ao solo contribuíram para a maior retenção. A lavagem das folhas removeu 34,1 e 73,9% do fl úor na cebolinha e na salsa, respectivamente, indicando que a maior parte do poluente encontrava-se internamente na cebolinha e externamente na salsa. O cultivo destas hortaliças em áreas poluídas por fl úor é inadequado, pois os teores do poluente estão acima do recomendado para o consumo, mesmo após a lavagem das folhas. Palavras-chave: anatomia foliar, Allium schoenoprasum, Brassica oleracea, Ocimum basilicum, Petroselinum crispum ABSTRACT -(Toxicity and fl uoride accumulation in herbs grown in the vicinity of an aluminum plant). To assess fl uoride accumulation potential and the percentage of fl uoride removed by washing, four herb species were exposed to a polluted area. Spondias dulcis was used a...

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“…The presence of tannins were associated to idioblasts near to the midrib and epidermis of A. indica by the reaction with vanillin-hydrochloric acid, evincing their function as a defense mechanism against herbivory and the invasion of pathogenic microorganisms and viruses, as has also been reported for Spondias dulcis Forst. F (Sant'Anna- Santos et al 2006). It has been described the presence of tannin compounds associated to idioblasts near the central vein (El-Hawary et al 2013), and to epidermal cells (Ilmiah et al 2018).…”

Section: Structuralmentioning

confidence: 99%

Leaf anatomy micromorphometry plasticity and histochemistry of Azadirachta indica during acclimatization

et al. 2020

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Environmental conditions of grow can modify leaf structure and metabolite production. Neem plants produce a high amount of medicinal metabolites and contain biopesticide terpenoids with low toxicity. However, the high genetic variation and the low material quality, besides the environmental modifications warn to the need of biotechnological techniques to ensure the production of high quality metabolites. The aim was to investigate leaf structural and histochemical characteristics of Azadirachta indica grown in vitro, in vivo and acclimatized condition. It was found anatomical differences among the environments, with higher leaf thickness associated to in vivo conditions, as well as were more evenly distributed stomata. Those modifications did not qualitatively affect the production of medicinal metabolites and biopesticides. Terpenes and tannins were observed in specialized cells called idioblasts, located in the mesophyll and in the midrib region, respectively. Thus, in a qualitative approach, we can affirm that the different environments do not modify metabolites production. Increased production of these bioactive compounds could be achieved by isolation and in vitro culture of idioblasts as a new source of research in plant biotechnology.

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Anatomia e histoquímica das estruturas secretoras do caule de Spondias dulcis Forst. F. (Anacardiaceae)

Cited by 23 publications

References 29 publications

Pharmacognostic Characterization of Spondias mombin L. (Anacardiaceae)

Pharmacognostic Characterization of Spondias mombin L. (Anacardiaceae)

Toxicidade e acúmulo de flúor em hortaliças nas adjacências de uma fábrica de alumínio

Leaf anatomy micromorphometry plasticity and histochemistry of Azadirachta indica during acclimatization

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