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| Registros recuperados: 27 | |
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| GONÇALVES,THAÍS A.P.; SCHEEL-YBERT,RITA. |
| ABSTRACT Anthracological studies are firmly advancing in the tropics during the last decades. The theoretical and methodological bases of the discipline are well established. Yet, there is a strong demand for comparative reference material, seeking for an improvement in the precision of taxonomic determination, both in palaeoecological and palaeoethnobotanical studies and to help preventing illegal charcoal production. This work presents descriptions of charcoal anatomy of eleven Anacardiaceae species from six genera native to Brazil (Anacardium occidentale, Anacardium parvifolium, Astronium graveolens, Astronium lecointei, Lithrea molleoides, Schinus terebenthifolius, Spondias mombin, Spondias purpurea, Spondias tuberosa, Tapirira guianensis, and Tapirira... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anthracology; Archaeobotany; Charcoal; Palaeoecology; Environmental conservation; Wood anatomy. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000501711 |
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| PREISINGER, H.; DUNISCH, O.; MORAIS, R. R. de; RICHTER, K.; ARAUJO, R. C.. |
| Plants of six species from the Melastomataceae family (Miconia spp. and Bellucia spp.) taken from secondary forest stands of Terra Firme near Manaus, Amazonas, Brazil, were studied with regard to growth form, biometric traits of the plants, morphological and anatomical characteristics of leaves and wood. In addition, plant biomass and the content of mineral nutrients of different parts of the plants were analysed, and xylem flux measurements were carried out to determine the specific water uptake of the plants. The aim of the studies was to detect causal links between the parameters measured and the ecological behaviour of the species as observed in the field, in order to provide an autecological description of the species. The results show that the plant... |
| Tipo: Capítulo em livro técnico (INFOTECA-E) |
Palavras-chave: Brasil; Amazonas; Manaus; Sustainability; Anatomia; Andiroba; Carapa Guianensis; Desenvolvimento Sustentável; Floresta Tropical Úmida; Madeira; Manejo; Reflorestamento; Forest management; Reforestation; Tropical rain forests; Wood anatomy. |
| Ano: 1999 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/668432 |
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| Lens, F.; Jansen, S.; Caris, P.; Serlet, L.; Smets, E.. |
| The wood structure of 78 species from 27 genera representing the woody primuloids (Maesaceae, Myrsinaceae, and Theophrastaceae) was investigated using light microscopy (LM) and scanning electron microscopy (SEM). Results indicated that the ray structure, the nature of mineral inclusions, and the occurrence of breakdown areas in rays can be used to separate the three primuloid families from each other. Within Ericales, the presence of exclusively multiseriate rays is synapomorphic for Myrsinaceae and Theophrastaceae, and the occurrence of breakdown areas in rays is synapomorphic for Myrsinaceae. Within Myrsinaceae, the wood structure of the mangrove genus Aegiceras differs because it has short vessel elements that are storied, non-septate fibers, a... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Primuloids; Ericales s.l.; Maesaceae; Myrsinaceae; Theophrastaceae; Wood anatomy; Comparison; Light microscopy; Scanning electron microscopy. |
| Ano: 2005 |
URL: http://www.repository.naturalis.nl/record/407307 |
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| Salvador Bautista, Héctor. |
| La investigación se llevó a cabo en el municipio de Cazones de Herrera, Veracruz, México, en una huerta comercial de naranjo ‘Valencia’ injertado en cuatro portainjertos: limón ‘Volkameriano’ (C. volkameriana Ten. & Pasq.) y los mandarinos ‘Cleopatra’ (C. reshni Hort. ex Tan.), ‘Amblicarpa’ (C. Amblicarpa (Hassk.) Ochse) y ‘Común’ (C. reticulata), tolerantes al Virus de la Tristeza de los Cítricos (VTC). Durante dos ciclos de producción (2005-2007), se evaluó crecimiento del árbol, producción, calidad de la fruta y anatomía de la madera. Se utilizó un diseño experimental completamente al azar, con cuatro tratamientos, diez repeticiones y dos árboles por unidad experimental. Los resultados indican que, el naranjo ‘Valencia’ es afectado por el... |
| Tipo: Tesis |
Palavras-chave: Anatomía de la madera; Portainjertos; VTC; Maestría; Fruticultura; Citrus sinensis L. Osbeck.; Rootstocks; Wood anatomy. |
| Ano: 2008 |
URL: http://hdl.handle.net/10521/1563 |
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| Jansen, S.; Gortan, E.; Lens, F.; Assunta Lo Gullo, M.; Salleo, S.; Scholtz, A.; Stein, A.; Trifilò, P.; Nardini, A.. |
| • The hydraulic conductance of angiosperm xylem has been suggested to vary with changes in sap solute concentrations because of intervessel pit properties. • The magnitude of the ‘ionic effect’ was linked with vessel and pit dimensions in 20 angiosperm species covering 13 families including six Lauraceae species. • A positive correlation was found between ionic effect and vessel grouping parameters, especially the portion of vessel walls in contact with neighbouring vessels. Species with intervessel contact fraction (FC) values < 0.1 showed an ionic effect between 2% and 17%, while species with FC values > 0.1 exhibited a response between 10% and 32%. The ionic effect increased linearly with the mean fraction of the total vessel wall area occupied... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Angiosperms; Hydraulic conductivity; Intervessel pit membrane; Ionic effect; Vessel grouping; Wood anatomy; 42.41. |
| Ano: 2011 |
URL: http://www.repository.naturalis.nl/record/423644 |
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| SOFFIATTI,PATRICIA; ANGYALOSSY-ALFONSO,VERONICA. |
| A anatomia do lenho e da casca de Eugenia cerasiflora Miq. e E. uniflora L. são descritas no presente trabalho. As espécies apresentam a anatomia do lenho relativamente uniforme, enquanto a anatomia da casca mostra diferenças mais evidentes. As espécies diferenciam-se, em relação ao lenho, quanto ao tipo de parênquima axial e presença de cristais. Quanto à casca tem-se, como características que individualizam as espécies, o tipo e o arranjo das células esclerificadas no floema, tipo de periderme e presença de ritidoma. O presente trabalho mostra a importância da anatomia da casca, aliada à do lenho, para a separação e identificação de espécies. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Wood anatomy; Bark anatomy; Myrtaceae; Eugenia. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041999000200008 |
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| Pujana,Roberto R. |
| Systematic studies of angiosperm fossil woods from sediments of the Río Leona Formation were continued. A new morphospecies of Maloidoxylon with affinity to Rosaceae was described and constitutes, together with the fossil pollen from the same strata, the oldest South American fossil with this familial affinity. Nothofagaceae fossil woods are represented by the morphospecies Nothofagoxylon scalariforme Gothan, Nothofagoxylon kraeuseli Boureau et Salard, Nothofagoxylon triseriatum Torres et Lemoigne, Nothofagoxylon ruei Salard and a new morphospecies of Nothofagoxylon. Three of the four subgenera of Nothofagus were recognized in the fossil woods and a new infrageneric affinity for Nothofagoxylon ruei was proposed. The described woods have affinity to extant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Wood anatomy; Patagonia; Oligocene; Secondary xylem; Rosaceae; Nothofagaceae. |
| Ano: 2009 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142009000400004 |
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| Carvalho,Ellen Cristina Dantas; Martins,Fernando Roberto; Soares,Arlete Aparecida; Oliveira,Rafael Silva; Muniz,Celli Rodrigues; Araújo,Francisca Soares. |
| Xylem anatomical traits can provide insights regarding the mechanisms affecting the distribution of vascular plants across environmental gradients. In this study, we aimed to investigate the hypothesis that lianas occurring in semiarid environments have characteristics that maximize the xylem resistance to tension-induced cavitation along the root-stem-branch continuum. To gather information regarding the hydraulic architecture of the lianas, we analyzed several anatomical traits of wood: cross-sectional area occupied by the parenchyma (AP), fibers (AF), and vessels (AV); average vessel diameter (d); wood density (WD); pit diameter in the vessel wall (dpit); pit density (Npit), and potential hydraulic conductivity (Kp) in branches, stems, and roots of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Potential hydraulic conductivity; Vessel diameter; Wood anatomy; Wood density; Xylem. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000200198 |
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| Luchi,Agnes E.. |
| Cedrela odorata L. (Meliaceae) occurs in the Atlantic forest, Amazon rain forest, riparian forest of the country, and wetlands, which demand species adapted to their water conditions. Studies in ecological wood anatomy demonstrated that weather factors' variations have direct influence on the wood anatomical structure and that the fragmentation of the natural habitats is a direct cause of the edge effect which alters the abiotic aspects of the location, interfering consequently in its vegetation. A comparative analysis of 20 anatomical quantitative features of the wood structure was performed in populations of Cedrela odorata growing inside and on the edge of the swamp forest and granulometric analysis was made on the soil. The quantitative data were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Edge effect; Swamp forest; Wood anatomy. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042011000300013 |
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| Lens, F.; Dressler, S.; Jansen, S.; Van Evelghem, L.; Smets, E.. |
| Wood samples of 49 specimens representing 31 species and 11 genera of woody balsaminoids, i.e., Balsaminaceae, Marcgraviaceae, Pellicieraceae, and Tetrameristaceae, were investigated using light microscopy and scanning electron microscopy. The wood structure of Marcgraviaceae, Pellicieraceae, and Tetrameristaceae is characterized by radial vessel multiples with simple perforation plates, alternate vessel pitting, apotracheal and paratracheal parenchyma, septate libriform fibers, and the presence of raphides in ray cells. Tetrameristaceae and Pellicieraceae are found to be closely related based on the occurrence of unilaterally compound vessel-ray pitting and multiseriate rays with long uniseriate ends. The narrow rays in Pelliciera are characteristic of... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Balsaminaceae; Balsaminoid clade; Ericales; Marcgraviaceae; Paedomorphism; Pellicieraceae; Tetrameristaceae; Wood anatomy; 42.40. |
| Ano: 2005 |
URL: http://www.repository.naturalis.nl/record/407273 |
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| Welle, B.J.H. ter; Loureiro, A.A.; Lisboa, P.L.B.; Koek-Noorman, J.. |
| Systematic wood anatomy of the tribe Guettardeae (Rubiaceae). The wood anatomy of nearly all genera of the Guettardeae (Rubiaceae, Guettardoideae) has been examined, and in this respect the tribe is heterogeneous. Suggestions are made for a delimitation of the tribe. Guettarda, Bobea, Antirhea, Malanea and Chomelia Jacq. are sufficiently similar in their wood anatomical characters to warrant retention in the same tribe. Machaonia, Timonius and Dichilanthe are anomalous. Suggestions are given for taxonomic revisions of some genera based on their wood anatomy. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Guettardeae; Rubiaceae; Taxonomy; Wood anatomy. |
| Ano: 1983 |
URL: http://www.repository.naturalis.nl/record/535135 |
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| Registros recuperados: 27 | |
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