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Registros recuperados: 14
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Anatomia foliar de espécies epífitas de Orchidaceae Rev. Bras. Bot.
OLIVEIRA,VIRGINIA DEL CARMEN; SAJO,MARIA DAS GRAÇAS.
O mesofilo é formado por parênquima lacunoso e os feixes vasculares, maiores e menores, se dispõem intercaladamente, nas folhas de Orchidaceae estudadas (Catasetum fimbriatum Lindl., Dichaea bryophila Rchb. f., Encyclia calamaria (Lindl.) Pabst, Epidendrum campestre Lindl., E. secundum Jacq., Miltonia flavescens Lindl., Pleurothallis smithiana Lindl., Stanhopea lietzei (Regel) Schltr. e Vanda tricolor Lindl.). No mesofilo de quase todas as espécies ocorrem células esclerificadas adjacentes à epiderme, nas duas faces foliares. Também são comuns, nas folhas estudadas, caracteres estruturais que podem ser interpretados como adaptações ao hábito epifítico.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Leaf anatomy; Orchidaceae; Epiphytism.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041999000300003
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Anatomia foliar de Eugenia sulcata Spring ex Mart. (Myrtaceae) Acta Botanica
Machado,Raul D; Costa,Cecília G; Fontenelle,Gerusa B.
A lâmina foliar de Eugenia sulcata Spring ex Mart, é analisada, ressaltando-se aspectos de suas epidermes, à luz da microscopia óptica e da microscopia eletrônica de transmissão e de varredura. As paredes anticlinais destas células são sinuosas e as periclinais externas têm espessura não uniforme, em decorrência de projeções internas destas paredes. Ao microscópio eletrônico de transmissão tais paredes apresentam-se constituidas por 3 camadas distintas. O microscópio eletrônico de varredura mostra completa ausência de estriações na superfície externa da epiderme abaxial. Os estômatos são classificados como anomoestaurocíticos quanto ao numero e arranjo das células subsidiárias e considerados graminóides em função do espessamento desigual das células...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Myrtaceae; Leaf anatomy.
Ano: 1987 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061987000300026
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Anatomía foliar y caulinar en especies de Stemodia (Scrophulariaceae) Boletín de la Sociedad
Sosa,Maria De Las Mercedes.
Se describe la estructura anatómica foliar y caulinar en el género Stemodia. Son consideradas siete especies: S. ericifolia (Kuntze) K. Schum., S. hyptoides Cham. & Schltdl., S. lanceolata Benth., S. lobelioides Lehm., S. palustris A. St.-Hil., S. stricta Cham. & Schltdl. y S. verticillata (Mill.) Hassl. Se hallaron diferencias en la epidermis foliar, donde hay variación en el tipo de estomas y de tricomas, y en la forma de las papilas epidérmicas; también en la estructura del mesofilo. Se describen e ilustran cuatro tipos de tricomas considerando si son o no glandulares y el número de células que lo conforman. El estudio de la anatomía caulinar mostró diferencias en cuanto a la presencia de aerénquima cortical y de laguna medular, y el...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Leaf anatomy; Stem anatomy; Trichomes; Stemodia; Scrophulariaceae; Anatomía foliar; Anatomía caulinar; Tricomas; Stemodia; Scrophulariaceae.
Ano: 2005 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722005000100007
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Características anatômicas foliares de plantas de orégano (Origanum vulgare L.) submetidas a diferentes fontes e níveis de adubação orgânica - DOI: 10.4025/actasciagron.v31i3.690 Agronomy
Corrêa, Ricardo Monteiro; IFMG; Pinto, José Eduardo Brasil Pereira; UFLA; Reis, Érika Soares; IFMG; Oliveira, Cynthia de; UFLA; Castro, Evaristo Mauro de; UFLA; Brant, Renata da Silva; UFLA.
Objetivou-se avaliar a influência de níveis de adubos orgânicos bovino e avícola no teor de clorofila e características anatômicas de folhas de plantas de orégano cultivadas em casa-de-vegetação. Foram conduzidos dois ensaios separadamente, sendo um com esterco bovino e o outro com esterco de aves. Plantas de orégano (Origanum vulgare L.) foram cultivadas em vasos de 10 L, submetidas aos seguintes tratamentos: Ensaio I: esterco bovino: 1) solo sem adubação (controle); 2) solo + 3,0 kg m-2 de esterco bovino; 3) solo + 6,0 kg m-2 de esterco bovino; 4) solo + 9,0 kg m-2 de esterco bovino; 5) solo + 12,0 kg m-2 de esterco bovino; Ensaio II – esterco avícola: 1) solo sem adubação (Controle); 2) solo + 1,5 kg m-2 de esterco de galinha; 3) solo + 3,0 kg m-2 de...
Palavras-chave: 5.01.00.00-9 Agronomia Origanum vulgare L.; Planta condimentar; Fertilização orgânica; Anatomia foliar; Clorofila Origanum vulgare L.; Spice plant; Organic fertilization; Leaf anatomy; Chlorophylls.
Ano: 2009 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/690
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Comparative morphology on leaves of Daphniphyllum (Daphniphyllaceae) Naturalis
Tang, M.-S.; Yang, Y.-P.; Sheue, C.-R..
A comparative anatomical study on the leaves of nine out of 29 species of the genus Daphniphyllum was performed to seek support for the present infrageneric classification. Daphniphyllum is composed of two sections, Lunata (with one subsection Lunata) and Daphniphyllum (with two subsections, Daphniphyllum and Staminodia). The glabrous leaves with brachyparacytic stomata appear in all species in this study; hemiparacytic, laterocytic or anomocytic stomata occur in some taxa. Two (out of three) species of section Lunata show irregular epidermal cells with undulate anticlinal walls on both surfaces and hemiparacytic stomata. Of section Daphniphyllum seven (out of 26) species were sampled; they have curved, straight or undulate anticlinal cell walls and...
Tipo: Article / Letter to the editor Palavras-chave: Daphniphyllaceae; Daphniphyllum; Epidermis; Leaf anatomy; Lunata; Stomata.
Ano: 2009 URL: http://www.repository.naturalis.nl/record/524761
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Foliar anatomy and microscopy of six Brazilian species of Baccharis (Asteraceae) Repositório Alice
BUDEL, J. M.; RAMAN, V.; MONTEIRO, L. M.; ALMEIDA, V. P.; BOBEK, V. B.; HEIDEN, G.; TAKEDA, I. J. M.; KHAN, I. A..
bitstream/item/177588/1/Gustavo-Heiden-Baccharis-anatomy-paper.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Druses; Leaf anatomy; Light and scanning electron microscopy; Oil bodies; Baccharis.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1091898
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Leaf anatomy of Gaillardia cabrerae (Asteraceae): Basic plan and comparative study of two contrasting habitat populations Boletín de la Sociedad
Beinticinco,Laura; Prina,Anibal; Alfonso,Graciela.
This study evaluates the leaf anatomy pattern of Gaillardia cabrerae Covas, an exclusive endemic camephyte from the Lihué Calel National Park, province of La Pampa, Argentina. Leaf cross sections and peelings of plants growing in two different populations were used to determine the basic leaf anatomy patterns and to estimate the influence of growth conditions in the two microhabitats. The analysis showed differences in epidermal cells area, stomata density and main diameter, lacunar parenchyma cells and central vascular bundle diameter and palisade parenchyma cells dimensions. These aspects might be reflecting environmental conditions of the populations, especially sun exposure and soil moisture. The results provide information on the relationship of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Leaf anatomy; Endemism; Lihué Calel National Park.
Ano: 2011 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722011000100003
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Leaf blade anatomy and ultrastructure of six Simira species (Rubiaceae) from the Atlantic Rain Forest, Brazil Biocell
Moraes,Tarsila Maria da Silva; Barros,Claudia Franca; Neto,Sebastião José da Silva; Gomes,Valdirene Moreira; Da Cunha,Maura.
Simira is a predominantly woody Neotropical genus comprising 41 taxa, 16 of which occur in Brazil and eight of them in the southeastern region of Brazil. Leaf blades of Simira eliezeriana Peixoto, S. glaziovii (K. Schum.) Steyerm., S. grazielae Peixoto, S. pikia (K. Schum.) Steyerm., S. rubra (Mart.) Steyerm., S. sampaioana (Standl.) Steyerm.were collected in the southeastern region of Brazil and fixed according to usual methods for light and electron microscopy. The leaf blades show typical characteristics of the Rubiaceae family as dorsiventral mesophyll and paracytic stomata. The presence of two bundle sheaths that extend to the upper epidermal layer, prismatic crystal and crystal-sand, alkaloids in the mesophyll and the organization micromorphological...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Leaf anatomy; Structure; Morph-anatomy.
Ano: 2009 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452009000300004
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Leaf plasticity in successive selection cycles of 'Saracura' maize in response to periodic soil flooding. Repositório Alice
SOUZA, T. C. de; MAGALHÃES, P. C.; PEREIRA, F. J.; CASTRO, E. M. de; SILVA JUNIOR, J. M. da; PARENTONI, S. N..
Abstract ? The objective of this work was to assess the effect of successive selection cycles on leaf plasticity of 'Saracura' maize BRS-4154 under periodical flooding in field conditions. Soil flooding started at the six-leaf stage with the application of a 20-cm depth water layer three times a week. At flowering, samples of leaves were collected and fixed. Paradermic and transverse sections were observed under photonic microscope. Several changes were observed throughout the selection cycles, such as modifications in the number and size of the stomata, higher amount of vascular bundles and the resulting decrease of the distance between them, smaller diameter of the metaxylem, decrease of cuticle and epidermis thickness, decrease of number and size of...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Leaf anatomy; Tolerance to flooding.; Zea mays; Hypoxia.
Ano: 2010 URL: http://www.alice.cnptia.embrapa.br/handle/doc/783437
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LEAF TRAITS AND PLASTIC POTENTIAL OF PLANT SPECIES IN A LIGHT-EDAPHIC GRADIENT FROM RESTINGA IN SOUTHERN BRAZIL Acta biol.Colomb.
Ferreira de MELO JÚNIOR,João Carlos; Torres BOEGER,Maria Regina.
Restinga formations grow on sandy spits of coastal plains, an environment whose conditions limit the growth and development of vegetal species. Studies on restinga gradients are good examples of how plants acclimate to restrictive environments. This work compares three woody species co-occurring in four vegetations of a restinga from Southern Brazil. It pinpoints morpho-anatomical attributes that favor the survival of species faced with spatial variability of soil and light conditions. Results indicate that they respond differently to environmental variables on different scales. The plastic response of morphological attributes is more marked than that of anatomical ones. Varronia curassavica and Dodonaea viscosa showed more xeromorphic features on the more...
Tipo: Journal article Palavras-chave: Coastal vegetation; Leaf morphology; Leaf anatomy; Light and soil conditions.
Ano: 2016 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2016000100005
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Paspalum minutispiculatum (Poaceae, Panicoideae): a new annual species from Central Brazil. Repositório Alice
REIS, P. A.; SILVA, A. L. H. da; SILVA, A. S. da; VALLS, J. F. M.; GOMES, S. M.; OLIVEIRA, R. C. de.
bitstream/item/135766/1/036364415x689203.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Ceresia; Humboldtiana; Leaf anatomy; Paspaleae; Gramineae.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1031861
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Revision of the Neotropical genera Bocageopsis, Onychopetalum, and Unonopsis (Annonaceae) Naturalis
Maas, P.J.M.; Westra, L.Y.Th.; Vermeer, M..
(Annonaceae). The closeness of these three genera was expressed by Fries when he placed them in his (informal) Unonopsis group (Fries, 1959), and the close relationship is supported by more recent phylogenetic research as well. Four species are recognized in Bocageopsis and two species in Onychopetalum. Unonopsis is by far the largest of the three genera with close to 50 species, of which no less than 23 species are here described as new. One species (Unonopsis umbilicata) had to be shelved as insufficiently known for lack of data, and another, obviously new, species from Colombia is too incomplete and is described provisionally as Unonopsis spec. A. Several keys are provided, one for the genera and one each for the species of Bocageopsis and...
Tipo: Article / Letter to the editor Palavras-chave: Annonaceae; Bocageopsis; Onychopetalum; Unonopsis; Leaf anatomy; Taxonomy.
Ano: 2007 URL: http://www.repository.naturalis.nl/record/525887
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Revision of the Neotropical genus Pseudoxandra (Annonaceae) Naturalis
Maas, P.J.M.; Westra, L.Y.Th..
A taxonomic revision is made of the Neotropical genus Pseudoxandra. This genus forms part of the Cremastosperma alliance which consists of Bocageopsis, Cremastosperma, Ephedranthus, Klarobelia, Malmea, Mosannona, Onychopetalum, Oxandra, Pseudephedranthus, Pseudomalmea, Pseudoxandra, Ruizodendron, and Unonopsis, all from the Neotropics. Within Pseudoxandra 22 species are recognized, four of which were described quite recently by the first author (Maas et al., 1986). Fourteen species are described here as new. Two dichotomous keys are provided, one for the genera of the Cremastosperma alliance, and the other for the species of Pseudoxandra. The species treatments include descriptions, geographical and ecological notes, distribution maps, synonymy, taxonomic...
Tipo: Article / Letter to the editor Palavras-chave: Annonaceae; Pseudoxandra; Leaf anatomy; Osteosclereids; Taxonomy.
Ano: 2003 URL: http://www.repository.naturalis.nl/record/524896
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Systematic leaf anatomy of Baccaurea, Distichirhops, and Nothobaccaurea (Euphorbiaceae) Naturalis
Bodegom, S.; Haegens, R.M.A.P.; Heuven, B.J. van; Baas, P..
The leaf anatomical diversity of the genera Baccaurea Lour. (43 species), Distichirhops Haegens (3 species) and Nothobaccaurea Haegens (2 species) (Euphorbiaceae) is described. Two species of Aporosa and three species of Maesobotrya were examined for comparison. The following characters are important for the delimitation of species: hair types, the position of the glandular areas on the leaf margin, the hairiness and size of the glandular areas, the number of epidermal layers, the presence of (mucilage) idioblasts in the epidermis, the presence of palisade parenchyma above the vascular bundles, and the birefringence of the spongy parenchyma cell walls. However, leaf anatomy did not yield characters for distinction between the five genera studied. Phenetic...
Tipo: Article / Letter to the editor Palavras-chave: Baccaurea; Distichirhops; Maesobotrya; Nothobaccaurea; Euphorbiaceae; Hairs; Leaf anatomy; Leaf glands; Systematics.
Ano: 2001 URL: http://www.repository.naturalis.nl/record/525184
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