Anatomia foliar de Erythroxylum P. Browne (Erythroxylaceae) do Cerrado do Estado de São Paulo, Brasil

Bieras, Angela Cristina; Sajo, Maria das Graças

doi:10.1590/s0102-33062004000300018

Cited by 21 publications

(14 citation statements)

References 7 publications

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“…Características anatômicas da nervura central e margem foliar representam um caractere útil à identificação e separação de taxa pertencentes ao mesmo gênero consoante demonstrado por outros autores (Tomlinson 1960;Glassman 1972;D'Arcy & Keating 1979;Sajo et al 1995;Bieras & Sajo 2004;Scatena et al 2004) ratificando a relevância destas estruturas ao diagnóstico e taxonomia das espécies de Oenocarpus Mart. analisadas.…”

Section: Resultsunclassified

Aplicações taxonômicas da anatomia foliar de espécies amazônicas de Oenocarpus Mart. (Arecaceae)

Silva

Potiguara

2008

Acta Bot. Bras.

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RESUMO -(Aplicações taxonômicas da anatomia foliar de espécies amazônicas de Oenocarpus Mart. (Arecaceae)). Neste trabalho, objetivou-se estudar a anatomia foliar de Oenocarpus bacaba Mart., O. distichus Mart., O. mapora H. Karst. e O. minor Mart., visando verificar se existem entre as espécies diferenças anatômicas qualitativas úteis a sua delimitação taxonômica. Observou-se que as pinas de todos os representantes são anfiestomáticas e apresentam tecido epidérmico heteromórfico revestido por cutícula lisa, sobre a qual há depósitos de cera epicuticular nas formas filamentosas de extremidade gancheiforme e em placas retangulares; possuem estômatos tetracíticos e tricomas tectores bifilamentosos. O mesofilo é dorsiventral com braquiesclereídes, estruturas secretoras de mucilagem e feixes vasculares colaterais secundários e terciários, para os secundários diagnosticou-se quatro tipos, sendo o tipo III, com três vasos metaxilemáticos, o único comum às espécies. Características como: estômatos ciclocíticos; número de estratos do tecido de expansão; formas da nervura central e margem das pinas, mostraram-se peculiares a determinados taxa. Para o axis foliar, constatou-se que a forma e organização celulares do tecido parenquimático, nas regiões central e mediana, difere entre as espécies. Elaborou-se uma chave de identificação anatômica para as espécies de Oenocarpus Mart. analisadas, demonstrando que há entre estas diferenças estruturais significativas a nível qualitativo.Palavras-chave: anatomia taxonômica, Arecaceae, Oenocarpus Mart.ABSTRACT -(Leaf anatomy applied to the taxonomy of Amazonian species of Oenocarpus Mart. (Arecaceae)). Our aim was to study the leaf anatomy of Oenocarpus bacaba Mart., O. distichus Mart., O. mapora H. Karst. and O. minor Mart. in order to verify if there are qualitative anatomical features useful in taxonomy. Common features of the four species' leaflets are amphistomatic lamina; heteromorphic epidermal tissue; smooth cuticle; epicuticular wax in the form of hooked filaments and rectangular plates; tetracytic stomata; non-glandular, two-filamented trichomes; dorsiventral mesophyll with brachysclereids, mucilage secretory structures, type III secondary, with three metaxylem vessels, and tertiary vascular bundles. However, cyclocytic stomata; number of expansion tissue layers; shape of midrib and edge were peculiar to some taxa. The middle and central regions of the leaf axis differ among Oenocarpus Mart. species in cell shape and organization of the parenchyma tissue. An anatomical key is given for the species of Oenocarpus Mart., showing that there are significant qualitative structural differences among these species.

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Section: Resultsunclassified

Aplicações taxonômicas da anatomia foliar de espécies amazônicas de Oenocarpus Mart. (Arecaceae)

Silva

Potiguara

2008

Acta Bot. Bras.

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“…A análise anatômica das folhas de espécies do Cerrado tem revelado uma convergência para o escleromorfi smo (Paviani 1978;Bieras & Sajo 2004;Rio et al 2005;Bieras & Sajo 2009;Rossatto & Kolb 2010). A escleromorfi a é mais frequentemente atribuída ao oligotrofi smo, pela defi ciência de nitrogênio e fósforo (Sobrado & Medina 1980;Medina et al 1990;Feller 1996;Gonçalves-Alvim et al 2004;Read et al 2006) e intensidade luminosa (Groom & Lamont 1997, Marques et al 1999.…”

Section: Introductionunclassified

Análise comparativa da anatomia foliar de Melastomataceae em ambiente de vereda e cerrado sensu stricto

Somavilla

Graciano‐Ribeiro

2011

Acta Bot. Bras.

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ABSTRACT(Comparative analysis of Melastomataceae leaf anatomy in palm swamp and cerrado sensu stricto environments). Th is study describes the anatomy of the leaf blade of three species of Melastomataceae, Lavoisiera bergii Cogn., Macairea radula (Bonpl.) DC. and Trembleya parvifl ora (D. Don) Cogn., which colonize the fl ooded and open areas of a lower zone of palm swamp, and the M. radula and T. parvifl ora, which occur in cerrado sensu stricto, of the Estação Ecológica de Águas Emendadas, Planaltina, DF. Structural data of the three species indicate sclerophylly with particular characteristics to each of them, such as projections on epidermal cells of L. bergii, diff erent types and position of emergencies in L. bergii and M. radula and the protrusion in the epidermis of T. parvifl ora. Anatomical characterization of the leaves of M. radula and T. parvifl ora did not diff er between environments. However, the leaf blades of individuals of M. radula and T. parvifl ora found in the palm swamp showed plasticity in relation to individuals from the cerrado sensu stricto. Signifi cantly higher values (P ≤ 0.05) for the thickness of the mesophyll and chlorophyll parenchyma, leaf mass and specifi c leaf mass were found in the palm swamp. Th is relationship is reversed for values of specifi c leaf area. Th e ability to provide structural plasticity together with sclerophylly may be relevant to the invasive behavior of these species in the palm swamp as emphasized in the discussion. Moreover, this work also presents a brief discussion of other aspects related to the importance of anatomical structures in the taxonomy and ecology of these species.

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“…Megaphrynium macrostachyum leaves are used to supply water to catch fish in the water pools, as eyedroppers, fans to build a fire, dust pans, parasols for a baby and tobacco rollers (Hattori, 2006). It can be used as an antidote against arthropod or snake poisoning and venoms (Okungbowa et al, 2013 (Bieras and Sajo, 2004;Passos et al, 2009). There was no study focused on the usefulness of Maranthaceae plants (Hattori, 2006).…”

Section: Megaphrynium Macrostachyum Equally Have Similar Ethonobotanimentioning

confidence: 99%

Foliar anatomical study of <i>Thaumatococcus daniellii</i> (Benth.) Benth. and <i>Megaphrynium macrostachyum</i> (Benth) Milne-Redh. in Ile-Ife and Osogbo environs, Osun State, Nigeria

Abayomi¹,

Saheed²,

Akinwumi³

et al. 2018

Int. J. Bio. Chem. Sci

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Foliar, petiole and stem anatomical characters of Thaumatococcus daniellii and Megaphrynium macrostachyum in Ile-Ife and Osogbo, environs, Osun State in Nigeria are reported. The aim is to determine the macro and micro-characters that could facilitate their identification and classification. It is envisaged that this will further enhance the conservation of the two species and prevent them from extinction. Transverse sections of the leaf, petiole and stem were undertaken using Reichert Sledge Microtome (RSM) and observations were made using Light Microscope (LM). Diagnostic characters employable for their delimitation are their habits, stomata type, length and width of stomata, length and width of epidermal cells, anticlinal walls and stomata index on the abaxial surfaces. Others are air spaces, presence of tannins and sand crystals, abundance of sclerenchyma cells and thick cuticle in M. macrostachyum, presence of crystals of calcium oxalate and carbonate in M. macrostachyum. However, intergeneric characters between the two genera were also reported. Over all, additional diagnostic characters which have not been used for the delimitation of the two species have been reported. All these are envisaged to remove the confusion in their taxonomy and aid their conservation even when only sterile samples are available.

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Anatomia foliar de Erythroxylum P. Browne (Erythroxylaceae) do Cerrado do Estado de São Paulo, Brasil

Cited by 21 publications

References 7 publications

Aplicações taxonômicas da anatomia foliar de espécies amazônicas de Oenocarpus Mart. (Arecaceae)

Aplicações taxonômicas da anatomia foliar de espécies amazônicas de Oenocarpus Mart. (Arecaceae)

Análise comparativa da anatomia foliar de Melastomataceae em ambiente de vereda e cerrado sensu stricto

Foliar anatomical study of <i>Thaumatococcus daniellii</i> (Benth.) Benth. and <i>Megaphrynium macrostachyum</i> (Benth) Milne-Redh. in Ile-Ife and Osogbo environs, Osun State, Nigeria

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