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| Registros recuperados: 137 | |
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| Magalhães,Aderbal F.; Tozzi,Ana Maria G.A.; Magalhães,Eva G.; Sannomiya,Miriam; Soriano,Maria del Pilar C.; Perez,Mary A.F.. |
| The analysis of root extracts from Lonchocarpus montanus A.M.G. Azevedo resulted in the isolation of twenty three compounds chiefly flavonoids of which five (four flavonoids and one benzophenone) are described for the first time. The molecular structures of the new compounds (1-5) were determined through spectral analysis (UV, IR, MS and NMR) as being: 2'-hydroxy-8-(<FONT FACE=Symbol>a,a</FONT>-dimethylallyl)-2", 2"-dimethylpyrano-(5",6":3',4')-dibenzoylmethane (1), 2'-methoxy-8-(<FONT FACE=Symbol>a, a</FONT>-dimethylallyl)-2", 2"-dimethylpyrano-(5",6":3',4')-dibenzoylmethane (2), 4'-methoxy-2",2"-dimethylpyrano-(5",6":8,7)-flavone (3), 2"-(1-hydroxy-1-methylethyl)-furano-(4",5":8,7)-flavone (4) and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lonchocarpus montanus A.M.G. Azevedo; Leguminosae; Dibenzoylmethanes; Flavonoids; Flavones; Benzophenone; Bioautography; Artemia salina lethality. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652007000300001 |
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| DUARTE-ALMEIDA,JOAQUIM M.; CLEMENTE,MILENE S.; ARRUDA,ROSANI C.O.; VAZ,ANGELA M.S.F.; SALATINO,ANTONIO. |
| Large elongated glands occur on Cercideae leaf surfaces. Leaves of Bauhinia (55 taxa, 53 species), Cercis (1 species), Phanera (1 species), Piliostigma (2 species), Schnella (19 species) and Tylosema (1 species) were observed to determine location and relative number of glands. They were only observed on the abaxial leaf surface of 42 Bauhinia taxa. The glands were analyzed by light stereomicroscope and scanning electron microscopy. They are large (up to 270 µm long and 115 µm wide) and multicellular, containing lipophilic substances, probably volatile oils. Presence or absence and density of the glands in species of Bauhinia may be useful to determine species delimitation or distinction among infraspecific taxa. Higher density of glands is more common in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bauhinia; Brazilian forest; Leguminosae; Secretory structure; Taxonomy; Tropical ecosystems. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000200787 |
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| Magalhães,Aderbal F.; Tozzi,Ana M.G.A.; Magalhães,Eva G.; Blanco,Ivani S.; Soriano,Maria-Del-Pilar C.. |
| The light petroleum extract from the roots of Lonchocarpus muehlbergianus Hassl contained nine flavonoids, including six new ones. These are 2,4-cis-2,4,5,8-tetramethoxy-(2´´,3´´:6,7)-furanoflavan; 2,4-cis-4-hydroxy-2,5,8-trimethoxy-(2´´,3´´:6,7)-furanoflavan; 2,4-cis-2-prenyloxy-4,5,8-trimethoxy-(2´´,3´´:6,7)-fu-ranoflavan; 2,4-cis-2-prenyloxy-4-hydroxy-5,8-dimethoxy-(2´´,3´´:6,7)-furanoflavan; 2',5',6'-trimethoxy-9-(1,1-dimethylallyoxy)-[2´´,3´´:3´,4´]-furanochalcone; 5,6-dimethoxy-(2´´,3´´:7,8)-furanoflavone, identi-fied by analysis of their spectral data (UV, IR, ¹H and 13C NMR, 2D-NMR, NOE and MS). The natural occurrence of 2,4-dioxygenated flavan derivatives is being reported for the first time. Quantitative analysis of the petrol extract, by using... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lonchocarpus muehlbergianus; Leguminosae; Flavonoids; Flavans. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652004000400004 |
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| Silva,Rosilene Rodrigues; Souza-Lima,Eliane Semidei de. |
| The watershed of the São Francisco River is a large complex of headwaters of the Paraguay River, the main river of the Pantanal Matogrossense. Considering that Fabaceae are pointed out as the main family in floristic composition of various Brazilian biomes, however in some regions of Brazil is still little known upon the taxa, particularly in the Northern part of the Central-West, this study aimed to present a list of taxa occurring in the sub-basin of the São Francisco River, municipality of Nova Marilândia, State of Mato Grosso. For the taxa we give information on habit, vegetation, data on geographic distribution, potential use, successional strategy and dispersal syndrome, to subsidize habitat restoration projects. We recorded a total of 44 taxa,... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Leguminosae; Inga; Neotropical flora; Pantanal; Riparian vegetation. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000200297 |
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| Caboco,Rafael Brune; Rolim,Thiago Prates; Sartori,Ângela Lúcia Bagnatori; Sciamarelli,Alan. |
| This study aims to evaluate the richness of the Papilionoideae species found in the Parque Estadual das Várzeas do Rio Ivinhema (PEVRI), which is located in the southeast region of Mato Grosso do Sul, Brazil, and investigate if the habits of this Leguminosae group vary in different formations of the park. Monthly collections, including all habits, were made by walking along pre-established trails, from September 2004 to September 2009. The PEVRI includes Seasonal Semideciduous Forest, Seasonal Alluvial Semideciduous Forest and fields. Twenty-three species distributed in 16 genera and 5 tribes were recorded. Phaseoleae was noted with 7 genera, followed by Dalbergieae with 6 genera and Desmodieae, Indigofereae and Crotalarieae with only 1 genus in each... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fabaceae; Leguminosae; Floristic; Central-Western region; Brazil. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000200007 |
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| Hernández,Marcelo P.; ArambarriI,Ana M.. |
| Acacia aroma Gillies ex Hook. & Arn. grows in the Chacoan and Yungas Biogeographic Provinces, Argentina. It has numerous medicinal applications, sweet and edible fruits, and it may be used as forage. The objective of the present contribution was to analyse the stomatal distribution and stomatal density on the secondary leaflet surfaces, in different parts of the leaf, and at different tree crown levels, establishing the leaf movement and environmental condition relationships. The work was performed with fresh material and herbarium specimens, using conventional anatomical techniques. Stomatal distribution on the secondary leaflet surfaces was established, and differences in stomatal density among basal, medium and apical leaflets were found. A... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acacia aroma; Leaf movement; Leguminosae; Stomata. |
| Ano: 2010 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722010000200007 |
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| Galíndez,Guadalupe; Ceccato,Diana; Malagrina,Gisela; Pidal,Bárbara; Chilo,Gladys; Bach,Hernán; Fortunato,Renée; Ortega-Baes,Pablo. |
| Leguminosae is a family with high value of use for food, medicine, forage, ornamental and restoration ecology purposes. One obstacle for the use and management of many legume species is the presence of seeds with physical dormancy. Here, we evaluated the presence of physical dormancy in nine native species of Argentina and identified possible methods for breaking dormancy. Caesalpinia gilliesii, Geoffroea decorticans, and Prosopis alpataco have seeds with no physical dormancy, whereas Crotalaria incana, C. pumila, C. stipularia, Desmanthus virgatus, Galactia texana, and Senna aphylla have seeds with physical dormancy. The most effective methods for breaking physical dormancy were mechanical and wet heat (100°C) scarification for Crotalaria spp.;... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Leguminosae; Physical dormancy; Scarification; Seed germination. |
| Ano: 2016 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722016000100006 |
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| Vanni,Ricardo O. |
| The papilionoid genus Stylosanthes Sw. includes about 50 spp. distributed world wide in the tropics, approximately half of them grow in South America.The present study focuses on South American Stylosanthes. Based on examinations of herbarium specimens, as well as field observations, a total of 25 taxa (23 spp. and 2 varieties) are here described and identified with a key. Most of the species have been found to be more widely distributed than expected from the previous taxonomic literature, and the genus appears to be mainly concentrated in Brazil and Paraguay. Stylosanthes leiocarpa Vogel is new to the flora of Argentina and the presence of S. nervosa J. F. Macbr. is confirmed in Argentina. The nomenclature of S. guianensis (Aubl.) Sw. is analyzed.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Leguminosae; South America; Stylosanthes; Taxonomy; Distribution; Nomenclature. |
| Ano: 2017 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722017000300012 |
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| Palacios,Ramón A.; Hoc,Patricia S.. |
| En 2001 los autores describieron tres nuevas especies para la ciencia, P. dehiscens, P. angusticarpum y P. gracile, claramente diferenciables de las únicas reconocidas hasta ese momento: P. globosum (Gillies ex Hook. & Arn.) Burkart y P. mexicanum (Dressl.) Burkart, en base a la forma de crecimiento, morfología de las hojas, flores, frutos y del polen. Se realizaron nuevos viajes de colección y observaciones de campo, estudios exomorfológicos y palinológicos. Como resultado de los mismos, es posible confirmar la existencia de otras dos entidades en la Argentina: P.striatum (Benth.) R. A. Palacios & Hoc y P. benthami (Chodat & Wilczek) R. A. Palacios & Hoc, incluídas anteriormente por A. Burkart en la sinonimia de P.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Prosopidastrum; Leguminosae; Sistemática; Palinología; Argentina. |
| Ano: 2005 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722005000100013 |
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| Hoc,Patricia S.; Palacios,Ramón A.; Mom,María P.. |
| Durante el estudio de la subtribu Phaseolinae (Papilionoideae) y de la tribu Ingeae (Mimosoideae) para la Flora de Jujuy hemos encontrado colecciones que permiten ampliar la distribución de: Vigna candida (Vell.) Maréchal, Mascherpa & Stainier, a las primeras estribaciones de las Selvas de Transición jujeñas, en la Provincia Fitogeográfica de las Yungas; Vigna luteola (Jacq.) Benth., a las provincias de Jujuy, Salta, Santiago del Estero y Córdoba, posiblemente, por su carácter ruderal e Inga saltensis hasta la provincia de Jujuy, ampliando, además, las dimensiones del fruto. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vigna; Inga; Leguminosae; Distribución; Argentina. |
| Ano: 2006 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722006000200017 |
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| Registros recuperados: 137 | |
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