Morfo-anatomia foliar de Ocotea gardneri (Meisn.) Mez (Lauraceae-Lauroideae)

Coutinho, Denise Fernandes; Agra, Maria de Fátima; Barbosa-Filho, José Maria; Basílio, Ionaldo José Lima Diniz

doi:10.1590/s0102-695x2006000200008

Cited by 12 publications

(16 citation statements)

References 15 publications

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“…Similar trichomes have also been reported for O. puberula [34] and O. indecora [35]. Even though this feature is common in the taxa of Lauraceae [35], O. gardneri had glabrous leaves [36]. In transverse section (TS) of the leaf, the epidermis is uniseriate (Figure 2 A, B) and the cells contain phenolic compounds that reacted positively for histochemical tests.…”

Section: Microscopical Analysissupporting

confidence: 80%

“…However, O. indecora (Schott) Mez had sinuous anticlinal walls on both sides [35] whereas O. gardneri (Meisn.) Mez had both epidermises with straight anticlinal cell walls [36]. This is a significant feature in distinguishing various species of Ocotea.…”

Section: Microscopical Analysismentioning

confidence: 94%

“…Dorsiventral mesophyll is frequent in the family Lauraceae [40]. However, O. gardneri evidenced isobilateral mesophyll [36].…”

Section: Microscopical Analysismentioning

confidence: 99%

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Ocotea porosa: Anatomy and Histochemistry of Leaves and Stems, Chemical Composition, Cytotoxicity and Insecticidal Activities of Essential Oil

Brustulim

Monteiro

Almeida

et al. 2020

Braz. arch. biol. technol.

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Ocotea porosa (Nees & Mart.) Barroso, commonly known as "imbuia", "canela-imbuia" or "imbuiaamarela" in Brazil, is a tree of the Southern Atlantic Forest. The present study investigates the anatomy of leaf and stem, volatile oil chemistry, as well as cytotoxicity and insecticidal activities of the essential oil of O. porosa. Species identification was achieved by anatomy features, mainly due to paracytic and anomocytic stomata; non-glandular trichomes; biconvex midrib and petiole with a collateral open arc vascular bundle; presence of a sclerenchymatous layer, starch grains and crystal sand in the stem; and the presence of HIGHLIGHTS  The anatomy features were useful for identification of Ocotea porosa.  The major volatile compounds were α-pinene, β-pinene and bicyclogermacrene.  Essential oil of O. porosa was cytotoxic against McCoy, B16F10 and MCF7cell lines.  The cytotoxic mechanism might be related to apoptotic events.  Insert 1-4 highlights no longer than 85 characters.  Insert a highlight no longer than 85 characters.  Insert a highlight no longer than 85 characters. • Insert a highlight no longer than 85 characters.

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Section: Microscopical Analysissupporting

confidence: 80%

Section: Microscopical Analysismentioning

confidence: 94%

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Ocotea porosa: Anatomy and Histochemistry of Leaves and Stems, Chemical Composition, Cytotoxicity and Insecticidal Activities of Essential Oil

Brustulim

Monteiro

Almeida

et al. 2020

Braz. arch. biol. technol.

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“…BROTTO et al (2010), descreveram O. paranaensis com ápice da folha acuminado, apresentando de 4-6 pares de nervuras. COUTINHO et al (2006) descreveram os protofilos de Ocotea gardneri de consistência coriácea, contorno elíptico a oval-elíptico, ápice acuminado, base simétrica e arredondada, discolor, verde-escuro, brilhante, com a venação levemente proeminente adaxial, verde claro, opaco, e fortemente proeminente abaxial.…”

Section: Overhang Of Endocarp Internally Is the Micropyle T -Integumunclassified

Caracterização morfológica do fruto, semente, fases da germinação e plântula de Ocotea paranaensis

Paula

Nogueira

Ângelo

2016

Rev. Ciên. Agrovet.

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RESUMOOcotea paranaensis é uma espécie de baixa frequência na Mata Atlântica com registros de ocorrência apenas no estado do Paraná. Assim, este trabalho teve como objetivo descrever e ilustrar a morfologia de fruto e semente, fases da germinação e plântula de Ocotea paranaensis. Os frutos foram coletados em cinco matrizes no Parque Estadual das Lauráceas, Adrianópolis, PR. Para a descrição e ilustração do fruto e da semente foram analisadas 50 amostras. Para acompanhar as fases da germinação e o desenvolvimento da plântula, cinco repetições de 10 sementes foram colocadas em substrato vermiculita e postas em germinador Biomatic, a 30 ºC. O fruto é do tipo drupa, indeiscente, verde-claro a preto, epicarpo fino, glabro, liso, brilhante, mesocarpo carnoso, bastante espesso e endocarpo liso, coriáceo. A semente é exalbuminosa, globosa, tegumento liso, membranáceo, coloração castanho. O embrião é axial, plano-convexo, de coloração rosada. A germinação iniciou-se no 8º dia se estendendo até o 60º dia após a instalação do teste, sendo a plântula hipógea, criptocotiledonar, epicótilo cilíndrico com catáfilos verde-claro e protofilos simples, alternos, ápice agudo, base cuneada e coloração verde-claro. Os aspectos descritos e ilustrados mostraram-se confiáveis para a identificação da espécie em viveiros e em estudos de regeneração natural. PALAVRAS-CHAVE:Lauraceae, espécie florestal nativa, morfologia vegetal ABSTRACTOcotea paranaensis is a low frequency species in the Atlantic Forest and presents occurrence records only in the state of Paraná. The present study aimed at describing and illustrating the fruit and seed morphology, germination stages and seedling of Ocotea paranaensis. The fruits used in this study were collected from 5 mother trees in Laurace State Park, Adrianópolis, PR. For the fruit and seed description and illustration, 50 random samples were analyzed. To monitor the germination stages and seedling development, 5 replicates with 10 seeds each were placed in vermiculite, and then put to germinate in a Biomatic germinator at 30 °C. The fruit is an indehiscent drupe, with coloration varying from bright green to black, with thin, hairless, smooth and shiny epicarp, quite thick, fleshy mesocarp, and smooth, coriaceous endocarp. The seed is exalbuminous, round, with smooth, membranous, with brown integument. The embryo is axial, convex flatenned of pink coloration. Germination started on the eighth day and went on up to the sixtieth day after the test was initiated. The seedling is hypogeal, cryptocotylar, presenting cylindrical epicotyl with bright green cataphylls and simple alternate protophylls, with acute apex, cuneate leaf base and light green color. The aspects described and illustrated in this study were proven to be reliable for the species identification in nurseries and also for natural regeneration studies.

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“…Barroso (IBAMA 1992). Plants from the genus Ocotea are also used in folk medicine for the treatment of infections, headaches, ulcers, menstrual cramps, snake bites, diarrhea, neuralgia, indigestion and pain in general (Coutinho et al 2006, Moraes 2005, Morais 1998). …”

Section: Introductionmentioning

confidence: 99%

Comparative toxicity of essential oil and blends of selected terpenes of Ocotea species from Pernambuco, Brazil, against Tetranychus urticae Koch

Moraes

Câmara

Silva

2017

An. Acad. Bras. Ciênc.

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Essential oils from the leaves of two species of the genus Ocotea that occur in the Atlantic Forest in the state of Pernambuco, Brazil, were analyzed using gas chromatography-mass spectrometry. The acaricidal activity of these oils as well as 11 selected components and blends were evaluated in fumigation and residual contact tests against the two-spotted spider mite (Tetranychus urticae). Sixty-seven constituents were identified, totaling 97.3 ± 0.3% and 97.8 ± 0.5% of the oils from O. duckei and O. glomerata, respectively. Sesquiterpene was the dominant class. The compounds β-caryophyllene (18.6 ± 0.1%) and aromadendrene (17.3 ± 0.6%) were the main constituents of the oils from O. duckei and O. glomerata, respectively. Acaricidal action varied depending on the method employed, species and chemical nature of the selected constituents. The mites were susceptible to the oils and chemical constituents using the fumigation method. The O. duckei oil was respectively 2.5-fold and 1.5-fold more toxic than the O. glomerata oil using the fumigation and residual contact methods. Among the selected constituents, β-caryophyllene was the most toxic, independently of the method employed. The individual toxicity of the selected compounds and their blends as well as the role of these constituents in the overall toxicity of the essential oils are also discussed.

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Morfo-anatomia foliar de Ocotea gardneri (Meisn.) Mez (Lauraceae-Lauroideae)

Cited by 12 publications

References 15 publications

Ocotea porosa: Anatomy and Histochemistry of Leaves and Stems, Chemical Composition, Cytotoxicity and Insecticidal Activities of Essential Oil

Ocotea porosa: Anatomy and Histochemistry of Leaves and Stems, Chemical Composition, Cytotoxicity and Insecticidal Activities of Essential Oil

Caracterização morfológica do fruto, semente, fases da germinação e plântula de Ocotea paranaensis

Comparative toxicity of essential oil and blends of selected terpenes of Ocotea species from Pernambuco, Brazil, against Tetranychus urticae Koch

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