Anatomia foliar de pedra-hume-caá (Myrcia sphaerocarpa, Myrcia guianensis, Eugenia punicifolia - Myrtaceae)

Jorge, Uzia I. F.; Aguiar, Jaime Paiva Lopes; Silva, Maria de Lourdes P.

doi:10.1590/1809-43922000301057

Cited by 17 publications

(15 citation statements)

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“…In comparison to other members of Eugenia, in general, there are some anatomical similarities among the leaves, such as stomata restricted to the abaxial surface, a striated cuticle, polygonal epidermal cells that are wavy in surface view, dorsiventral mesophyll, a midrib with a bicollateral vascular bundle in an open arc that is surrounded by a sclerenchymatic sheath, secretory cavities that mostly occur in the subepidermis, druses and prismatic crystals of calcium oxalate and phenolic compounds (Fontenelle et al, 1994;Lorca et al, 1995;Jorge et al, 2000;Medeiros, 2000;Donato & Morretes, 2007;Alves et al, 2008).…”

Section: Discussionmentioning

confidence: 99%

Morpho-anatomy of the leaf and stem of Eugenia pyriformis

Armstrong¹,

Duarte²,

Miguel³

2012

Rev. bras. farmacogn.

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Eugenia pyriformis Cambess., known as uvaia, is a species of Myrtaceae native to Brazil. Its leaves are used in folk medicine to treat gout because they possess the property of inhibiting xanthine oxidase, an enzyme involved in the conversion of xanthine into uric acid. The objective of this work was to study the leaf and stem morphoanatomy of E. pyriformis, in order to contribute to what is known about the Brazilian fl ora, and this medicinal plant and potential vegetal drug. Samples of mature leaves and young stems were fi xed and sectioned by freehand, or embedded in glycol methacrylate and sectioned with a microtome, and then stained. In addition, microchemical tests and scanning electron microscopy were performed. The leaf is simple, symmetric, ellipticlanceolate, with an acute apex and base, and an entire margin. The epidermis is uniseriate and coated with a moderately thick cuticle. The stomata are anomocytic and inserted at the same level as the adjacent cells. Unicellular non-glandular trichomes are abundant on the abaxial surface. The mesophyll is dorsiventral. In transverse section, the midrib is plano-convex and the petiole is circular, and both of these structures have a single bicollateral vascular bundle. In the stem, the vascular cylinder consists of external phloem, xylem and internal phloem, traversed by narrow rays. Phenolic compounds, druses and prismatic crystals of calcium oxalate are also present in the leaf and stem.

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Section: Discussionmentioning

confidence: 99%

Morpho-anatomy of the leaf and stem of Eugenia pyriformis

Armstrong¹,

Duarte²,

Miguel³

2012

Rev. bras. farmacogn.

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“…Essas células têm formato poligonal em espécies de gêneros basais como Leptospermum (Johnson 1980) e Eucalyptus (TuffiSantos et al 2006) e paredes sinuosas ao menos em uma face foliar em todas as espécies de Myrciinae analisadas (Tab. 1), exceto em espécime com identidade duvidosa, ora designada como Myrcia sphaerocarpa, ora como M. multiflora (Jorge et al 2000) e que foi excluída da análise geral. Conforme estudos filogenéticos de Myrtaceae feitos por Conti et al (1997) e Lucas et al Tabela 1.…”

Section: Discussionunclassified

“…* Caracteres usados na análise cladística; ** dados de Psidium catleyanum considerados na análise cladísdica. 10 Eugenia cuprea Callado 1997 11 Eugenia dysenterica Palhares 2003 12 Eugenia punicifolia Jorge et al 2000 13 Eugenia sulcata Machado et al 1988 14 Eugenia uniflora Behar 1971 15 Jambosa vulgaris Lucas 1971 16 Gomidesia fenzliana Fontenelle et al1993 17 Gomidesia martiana Fontenelle et al 1993 18 …”

Section: Discussionunclassified

“…Cada área clara corresponde a uma projeção protoplasmática que penetrou na parede periclinal externa tornando-a mais delgada (Callado 1997;Fontenelle et al 1993). Acredita-se que a descrição da parede anticlinal em forma de contas em espécie de Myrcia (Jorge et al 2000) corresponde a estes pontos mais claros concentrados nas sinuosidades de células epidérmicas comuns.…”

Section: Discussionunclassified

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Anatomia foliar de espécies de Myrtaceae: contribuições à taxonomia e filogenia

et al. 2009

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Recebido em 3/01/2008. Aceito em 25/06/2008 RESUMO -(Anatomia foliar de espécies de Myrtaceae: contribuições à taxonomia e filogenia). Trabalhos taxonômicos e filogenéticos têm utilizado informações anatômicas e para contribuir com estes estudos examinaram-se cortes paradérmicos e transversais da porção mediana foliar de Campomanesia adamantium (Camb.) O. Berg, Myrcia cordiifolia DC., M. decrescens O. Berg e M. torta D.C. Os caracteres anatômicos foram comparados com os de outras espécies descritas na literatura. São características comuns às quatro espécies examinadas: epiderme uniestratificada, tricomas unicelulares, folhas hipoestomáticas, estômatos paracíticos, cavidades secretoras em ambas as faces, mesofilo dorsiventral e nervura mediana com feixes bicolaterais. Destacam-se os seguintes caracteres úteis para a taxonomia da família: formato das células comuns da epiderme, tricomas dibraquiados ou não, camadas celulares incolores subepidérmicas e formato da nervura mediana. O formato e número das células teto das glândulas foliares têm utilidade taxonômica. O exame de 144 exsicatas evidenciou que a glabrescência é um fenômeno comum. A queda dos tricomas pode ser devido à sua base estreita e à ausência de célula pedal nos mesmos. Analisaram-se os caracteres à luz de estudos filogenéticos recentes e do ponto de vista ecológico, destacando a hipótese relacionada às células epidérmicas com possível função de célula de transferência. As características anatômicas forneceram dados para análises comparativas mais amplas entre os táxons de Myrtaceae e possibilitaram a construção de um cladograma, onde espécies de Leptospermum e Eucalyptus ocuparam posição basal, em consonância com filogenias relatadas na literatura. Palavras-chave: célula de transferência, célula teto, evolução, folha, taxonomiaABSTRACT -(Leaf anatomy of Myrtaceae species: contributions to the taxonomy and phylogeny). Taxonomical and phylogenetical studies have used anatomical information. In order to contribute to these studies, paradermal and cross sections of the median leaf blade portion of Campomanesia adamantium (Camb.) O. Berg, Myrcia cordiifolia DC., M. decrescens O. Berg and M. torta D.C. were examined. The anatomical characters were compared to the other species described in the literature. Some characteristics were irrespective of the four examined species: unistratified epidermis, unicellular trichomes, hypostomatic leaves, paracytic stomata, oil glands on both sides, dorsiventral mesophyll and bicollateral bundles on the midrib. The following characters appear to be taxonomically useful in the family: epidermal common cell format, presence of dibrachiate trichomes, presence of colorless subepidermal cell layers and midrib shape. The morphology and number of overlying cells associated with the glands have taxonomic utility. The 144 exsicates examination showed that the glabrescence is a widespread phenomenon in the Myrtaceae. The trichome fall can be due to its narrow base and to the foot cell absence. The characters were analyzed in the...

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“…besides Eugenia punicifolia (Kunth) DC. [14,15]. Myrcia uniflora is sold as a dry extract in capsules or as tinctures for the treatment of diabetes.…”

Section: Traditional Usesmentioning

confidence: 99%

Constituents and Pharmacological Activities of Myrcia (Myrtaceae): A Review of an Aromatic and Medicinal Group of Plants

Cascaes

Guilhon

Andrade

et al. 2015

IJMS

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Myrcia is one of the largest genera of the economically important family Myrtaceae. Some of the species are used in folk medicine, such as a group known as “pedra-hume-caá” or “pedra-ume-caá” or “insulina vegetal” (insulin plant) that it is used for the treatment of diabetes. The species are an important source of essential oils, and most of the chemical studies on Myrcia describe the chemical composition of the essential oils, in which mono- and sesquiterpenes are predominant. The non-volatile compounds isolated from Myrcia are usually flavonoids, tannins, acetophenone derivatives and triterpenes. Anti-inflammatory, antinociceptive, antioxidant, antimicrobial activities have been described to Myrcia essential oils, while hypoglycemic, anti-hemorrhagic and antioxidant activities were attributed to the extracts. Flavonoid glucosides and acetophenone derivatives showed aldose reductase and α-glucosidase inhibition, and could explain the traditional use of Myrcia species to treat diabetes. Antimicrobial and anti-inflammatory are some of the activities observed for other isolated compounds from Myrcia.

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Anatomia foliar de pedra-hume-caá (Myrcia sphaerocarpa, Myrcia guianensis, Eugenia punicifolia - Myrtaceae)

Cited by 17 publications

References 1 publication

Morpho-anatomy of the leaf and stem of Eugenia pyriformis

Morpho-anatomy of the leaf and stem of Eugenia pyriformis

Anatomia foliar de espécies de Myrtaceae: contribuições à taxonomia e filogenia

Constituents and Pharmacological Activities of Myrcia (Myrtaceae): A Review of an Aromatic and Medicinal Group of Plants

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