Anatomia foliar de Eugenia sulcata Spring ex Mart. (Myrtaceae)

Machado, Raúl; Costa, Cristiane Maria Amorim; Fontenelle, Gerusa Brunow

doi:10.1590/s0102-33061987000300026

Cited by 9 publications

(17 citation statements)

References 9 publications

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“…Estudos apontam que espécies de Myrtaceae apresentam lâminas foliares dorsiventrais e hipoestomáticas, conforme observado para Eugenia sulcata Spring ex Martius por Machado et al (1988), para Eugenia cuprea (O. Berg) Mattos e Marlierea suaveolens Cambess. por Callado (1997), para Gomidesia O. Berg por Gomes & Neves (1997), para Eugenia uniflora L. por Auricchio & Bacchi (2003), para Eugenia dysenterica DC.…”

Section: Discussionunclassified

“…Donato & Morretes (2005) também observaram que as células na epiderme adaxial de Psidium widgrenianum possuem maior volume em relação às células epidérmicas na face abaxial. Metcalfe & Chalk (1950) (Machado et al 1988;Gomes & Neves 1997;Auricchio & Bacchi 2003;Palhares 2003;Donato & Morretes 2005). Segundo Reis et al (2005), a forma do feixe vascular da nervura principal está relacionada com a dimensão dos elementos condutores.…”

Section: Discussionunclassified

“…Glândulas de origem lisígena, secretoras de óleo, são descritas no mesofilo de Myrtaceae por Machado et al (1988) para Eugenia sulcata, por Solís (2000) para Campomanesia guaviroba e por Donato & Morretes (2005) para Psidium widgrenianum.…”

Section: Discussionunclassified

“…Idioblastos contendo cristais prismáticos e drusas são recorrentes em várias espécies de Myrtaceae (Machado et al 1988;Callado 1997;Gomes & Neves 1997;Auricchio & Bacchi 2003;Palhares 2003;Cardoso & Sajo 2004;Donato & Morretes 2005). Segundo Donato & Morretes (2005), o tipo, a localização e a freqüência dos cristais facilitam na diagnose da espécie.…”

Section: Discussionunclassified

“…O. Berg e G. nitida (Vell.) Nied., e alguns referentes ao gênero Eugenia (Van Wyk et al 1982;Machado et al 1988;Fontenelle et al 1994;Auricchio & Bacchi 2003;Cardoso & Sajo 2004 (Berlyn & Miksche 1976). Para a confecção do laminário foram preparadas lâminas permanentes e semi-permantes.…”

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Organização estrutural da folha de Pimenta pseudocaryophyllus (Gomes) L.R. Landrum, Myrtaceae

et al. 2009

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RESUMO -(Organização estrutural da folha de Pimenta pseudocaryophyllus (Gomes) L.R. Landrum, Myrtaceae). Com grande distribuição no Brasil e ocorrência principalmente no cerrado, caatinga e floresta atlântica, Pimenta pseudocaryophyllus (Gomes) L.R. Landrum, que está inclusa em um dos menores gêneros de Myrtaceae, é popularmente conhecida como craveiro-do-mato, louro-cravo ou chá-de-bugre. Trata-se de uma espécie nativa e suas folhas são usadas na culinária substituindo o cravo-da-índia (Syzygium aromaticum) devido ao aroma semelhante. O estudo tem o objetivo de caracterizar anatomicamente a folha dessa espécie. Para a confecção do laminário, amostras da região mediana da folha e do pecíolo foram seccionadas em micrótomo de rotação e coradas com azul de toluidina a 1%. Em vista frontal, a epiderme é glabra na face adaxial e pilosa na face abaxial, com tricomas unicelulares. A folha é hipoestomática e os complexos estomáticos são anomocíticos. Em secção transversal, a epiderme é uniestratificada revestida por cutícula espessa e camada subepidérmica formada por 1-2 estratos celulares. O mesofilo é dorsiventral e bainha esclerenquimática envolve o feixe vascular bicolateral. Na folha e no pecíolo observam-se colênquima lacunar, flanges cuticulares, canais secretores e idioblastos contendo drusas e monocristais. Concluise que a espécie possui características freqüentes para Myrtaceae, com exceção da camada subepidérmica e flanges cuticulares, e que os resultados obtidos contribuem com novas informações que podem subsidiar estudos futuros no que se refere à identificação e delimitação do táxon. Palavras-chave: anatomia foliar, drusas, estruturas secretoras, Myrtaceae, PimentaABSTRACT -(Leaf structural organization of Pimenta pseudocaryophyllus (Gomes) L.R. Landrum, Myrtaceae). Pimenta pseudocaryophyllus (Gomes) L.R. Landrum is a native species from Brazil and occurs mainly in cerrado, caatinga and Atlantic rainforest vegetation. It is commonly known as "craveiro-do-mato", "louro-cravo" or "chá-de-bugre". It is a tree species whose leaves are used for cooking; they smell and taste like cloves (Syzygium aromaticum). This study describes the leaf anatomy of the species. The leaves were sliced with a microtome, stained with 1% toluidine blue and prepared on slides. The histological sections were from the medium section, between the edge and the midrib of the leaves The lower leaf epidermis has anomocytic stomata complexes and non-glandular coats. The epidermis is unicellular; its cells are covered by a thick cuticle. The mesophyll is dorsiventral. The bicollateral vascular bundles are sheathed. Idioblasts with druses, monocrystals and lisigenous secretory canals were found along the entire leaf blade. We conclude that leaf anatomy provides new information on the species, with structures common in leaves of Myrtaceae.

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Section: Discussionunclassified

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Organização estrutural da folha de Pimenta pseudocaryophyllus (Gomes) L.R. Landrum, Myrtaceae

et al. 2009

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Foliar anatomy of the subfamily Myrtoideae (Myrtaceae)

2009

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The foliar structure of 44 species of Myrtoideae Nied. (Myrtaceae) was described to characterise the anatomy of the leaves in this subfamily and also to recognise particular features in each genus and/or subtribe. In the present study, nine genera of the subtribe Myrtinae, five genera of the subtribe Myrciinae and eight genera of the subtribe Eugeniinae were examined. All of them have dorsiventral and hypostomatic leaves, with stomata slightly protruded in relation to other epidermal cells; the leaves also present secretory cavities, idioblasts containing druses and vascular bundles with phloem on both adaxial and abaxial sides. Some surface features have diagnostic value for all genera of these three subtribes, such as the percentage of palisade parenchyma, the presence or absence of an adaxial hypodermis, the occurrence of an extension to the vascular bundle sheath, and the shape and position of the vascular system of the midrib. These features are described for each of the species studied and the results are discussed in a taxonomical context.

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2012

IJPSR

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Vismia guianensis (Aubl.) Choisy is a tree that belongs to the secondary vegetation in rainforests. This study aimed to perform anatomy analysis by light microscopy; scanning and microchemistry of the leaves of V. guianensis. Tri stratified upper epidermis with intense cutinization and unistratified inferior epidermis was observed. The stomata found are paracytic and the trichomes arranged in rosettes are glandular, multicellular, stellate shape covered with cuticle, which were present on the abaxial surface. Parenchyma cells with idioblasts containing druses of calcium oxalate crystals were also found. The mesophyll is dorsiventral and the midrib is concave on the adaxial surface and convex on the opposite surface. The microchemical tests detected the presence of starch grains in the chlorophyll cells and phenolic compounds dispersed in the palisade tissue and abaxial surface. Alkaloids in the epidermis and in the sclerenchyma cells surrounding the vascular bundles and the midrib xylem, dispersed flavonoid in the palisade parenchyma and trichomes, fatty substances as content of the secretory ducts and reducing sugars in the palisade and epidermal cells were found. These anatomical features were fundamental in the identification and characterization of the species. INTRODUCTION: Vismia guianensis (Aubl.) Choisy belonging to the Clusiaceae family is a native South American species, which can be found in Colombia, Venezuela, Guyana, and Brazil, more precisely in the secondary vegetation forests in the states of Amazonas, Pará, Maranhão, Bahia, and Minas Gerais 1. Commonly known as "seal", "fever-tree", "seal-gum", "seal stick" or "white seal", it is a small tree measuring 3-7 meters height, open and irregular crown with new rust-puberulous branches whose leaves are green in the upper region and yellow in the lower one 2. This species provides beautiful red-colored wood with thin and light veins, fibrous tissue, regular durability; it is suitable for construction, deluxe joinery and carpentry. The bark is very thick and therefore, used to cover houses 3. Surveys made in different Brazilian regions especially in the state of Pará, report its use in folk medicine. Kerharo 4 highlights its use primarily in the treatment of dermatosis, presenting itself as a potent laxative 2 , and its leaves are used as tonic 5 and have antipyretic and anti-rheumatic properties 2 .

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Anatomia foliar de Eugenia sulcata Spring ex Mart. (Myrtaceae)

Cited by 9 publications

References 9 publications

Organização estrutural da folha de Pimenta pseudocaryophyllus (Gomes) L.R. Landrum, Myrtaceae

Organização estrutural da folha de Pimenta pseudocaryophyllus (Gomes) L.R. Landrum, Myrtaceae

Foliar anatomy of the subfamily Myrtoideae (Myrtaceae)

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