The Experts below are selected from a list of 294 Experts worldwide ranked by ideXlab platform
Walter Paredes - One of the best experts on this subject based on the ideXlab platform.
-
efectividad del uso del barbasco Lonchocarpus utilis versus deltametrina en el control vectorial del aedes agypti en el alto huallaga 2008 2009
Applied Reconfigurable Computing, 2015Co-Authors: Walter Gomez, Segundo Rivera, Walter ParedesAbstract:Objetivos: Determinar la efectividad del uso del barbasco Lonchocarpus utilis versus deltametrina en el control vectorial del Aedes Aegypty en el Alto Huallaga. Material y Metodos: Estudio experimental, prospectivo, simple ciego. Las raices frescas de L. utilis, se seccionaron en trozos de 2 cm de diametro, y se sometieron a deshidratacion a 50 °C por 48 horas. Luego las raices secas fueron trituradas en un molino mecanico y tamizadas por un colador de malla fina, obteniendose como producto final un polvo fino que se uso en el rociado espacial del polvo de la raiz en agua destilada. Resultados: Existe diferencia estadisticamente significativa (p 0.05) entre el indice aedico despues de la aplicacion del barbasco, comparado con el indice aedico despues de la aplicacion de deltametrina, ambos productos tienen similar efectividad para el control vectorial del Aedes aegypti. La proporcion observada de Barbasco 4% y Deltametrina 1%, la mayor ventaja de la Deltametrina entendida como mayor efectividad para el control vectorial del Aedes aegypti, no es estadisticamente significativa. Conclusiones: La deltametrina tiene mayor efectividad que el barbasco lochocarpus utilis en el control vectorial del aedes agypti, esta diferencia no es estadisticamente significativa, por lo tanto se concluye que ambos productos son efectivos para el control vectorial del aedes aegypti, agregando que el uso del polvo de raiz de barbasco en el control de aedes aegypti, podria constituirse en una alternativa de uso en regiones pobres similares al estudio.
-
"Efectividad del uso del barbasco Lonchocarpus utilis versus deltametrina, en el control vectorial del aedes agypti, en el Alto Huallaga 2008 - 2009" Effectiveness of the use of the barbasco Lonchocarpus utilis versus deltametrina, in the control vec
2014Co-Authors: Walter Gomez, Segundo Rivera, Walter ParedesAbstract:SUMMARY Objective: Determining the effectiveness of the use of the barbasco Lonchocarpus utilis versus deltametrina in the control vectorial of the Aedes Aegypty in the high zone Huallaga. Materials and methods: Blind simple, prospective, experimental study. The fresh roots of L. utilis, they were splitted in pieces of 2 cm of diameter, and they were submitted to dehydration to 50 °C for 48 hours. Then the dry roots were crushed in a mechanical mill and sifted by a strainer of fine netting, being obtained as final product a fine dust that themselves use in the sprinkled spatial of the dust of the root in water distilled. Results: Statistically significant difference exists (p 0,05) among the index aedico after the application of the barbasco, compared with the index aedico after the application of deltametrina, both products have similar effectiveness for the control vectorial of the Aedes aegypti. The proportion observed of Barbasco 4% and Deltametrina 1%, the greater advantage of the Deltametrina understood as greater effectiveness for the control vectorial of the Aedes aegypti, is not statistically significant. Conclusions: The deltametrina has greater effectiveness that the barbasco lochocarpus utilis in the control vectorial of the aedes agypti, this difference is not statistically significant, therefore is concluded that both products are troops for the control vectorial of the aedes aegypti, adding that the use of the dust of root of barbasco in the control of aedes aegypti, would be able to be constituted in an alternative of use in similar poor regions to the study.
Ana Maria Goulart Azevedo Tozzi - One of the best experts on this subject based on the ideXlab platform.
-
revisao taxonomica de Lonchocarpus s str leguminosae papilionoideae do brasil
Acta Botanica Brasilica, 2012Co-Authors: Marcos José Da ,silva, Ana Maria Goulart Azevedo TozziAbstract:A revision of the Brazilian species of Lonchocarpus s. str. is presented. This study is based on field observation and an analysis of approximately 1,200 herbarium collections. Nine species are recognized, L. cultratus, L. hedyosmus, L. latifolius, L. macrocarpus, L. nitidus, L. pluvialis, L. sericeus, L. spiciflorus, and L. violaceus, which grow in forests and are usually associated with river banks. Lonchocarpus sericeus and L. cultratus have a wide distribution throughout Brazil, whereas L. hedyosmus, L. macrocarpus, L. spiciflorus, and L. latifolius are restricted to the Amazonian domain. Lonchocarpus pluvialis occurs in the Central-West (Mato Grosso do Sul and Goias) and Southeast (Sao Paulo) regions. Lonchocarpus violaceus is found in the states of Bahia and Espirito Santo, and is reported for the first time for Brazil. Identification keys, descriptions, and illustrations, in addition to information about habitat, geographic distribution and taxonomic and nomenclatural comments, are provided for the species. Four new synonyms and five lectotypifications are proposed.
-
filogenia e biogeografia de Lonchocarpus s l e revisao taxonomica dos generos muellera l f e dahlstedtia malme leguminosae papilionoideae millettieae
2010Co-Authors: Marcos José Da ,silva, Ana Maria Goulart Azevedo TozziAbstract:Lonchocarpus Kunth (Leguminosae, Papilionoideae, Millettieae) e predominantemente neotropical e inclui cerca de 150 especies. Estudos considerando a sistematica de Lonchocarpus sao necessarios, devido a sua classificacao infragenerica que apresenta problemas nomenclaturais e taxonomicos, correlacionados com a alta diversidade morfologica de seus representantes. Ha controversias referentes ao numero, ao nome e a definicao de suas series, secoes e subgeneros, bem como a sua propria circunscricao generica. Entre as secoes de Lonchocarpus, L. sect. Laxiflori (Benth.) Taub. e L. sect. Punctati (Benth.) Taub. sao distintas morfologicamente das demais e tem distribuicao geografica quase que restrita a America do Sul, sendo a revisao taxonomica delas fundamental para a delimitacao de Lonchocarpus. Ainda neste contexto, a precisa circunscricao do genero so e possivel com o entendimento das relacoes de Lonchocarpus com generos relacionados. Entre as poucas referencias de estudos filogeneticos que incluem especies de Lonchocarpus, uma apresenta Lonchocarpus s. str. como monofiletico se as especies sulamericanas da secao Punctati forem excluidas. Considerando os resultados apresentados nos estudos filogeneticos e os problemas relacionados a circunscricao e a classificacao infragenerica de Lonchocarpus, esta tese teve como objetivos 1) estudar a filogenia de Lonchocarpus, com o intuito de precisar sua circunscricao, bem como sua origem, idade, diversificacao geografica, e de elucidar suas relacoes com alguns generos cotribais, e 2) revisar Lonchocarpus sect. Punctati e L. sect. Laxiflori. O estudo filogenetico baseou-se em fragmentos sequencias de macromoleculas derivadas do DNA do cloroplasto (trnL-F e matK) e nuclear (ITS1+5.8S+ITS2), analisadas individualmente ou de maneira combinadas entre si e com dados morfologicos, atraves dos metodos de parcimonia e bayesiano, enquanto que os estudos taxonomicos revisionais fundamentaram-se nos procedimentos taxonomicos tradicionais. No capitulo 1, que trata da filogenia e biogeografia de Lonchocarpus e afins, as analises cladisticas mostraram que Lonchocarpusconforme atualmente circunscrito e parafiletico e que em Lonchocarpus sensu lato tres grandes clados podem ser reconhecidos: clado Laxiflori, clado Dahlstedtia e clado Lonchocarpus s. str., sendo os dois primeiros predominantemente sulamericanos e o ultimo principalmente mesoamericano. As especies de Lonchocarpus sect. Punctati ficaram no clado Dahlstedtia, enquanto que no clado Laxiflori tambem foram incluidas as especies de Bergeronia Micheli e Margaritolobium Harms. Com estes resultados, em adicao a consistencia da delimitacao morfologica, houve a necessidade de se propor o reestabelecimento de Muellera L.f., genero neotropical com apenas duas especies antes de sua sinonimizacao com Lonchocarpus, para incluir as especies do clado Laxiflori, e a ampliacao da circunscricao de Dahlstedtia, para incluir as especies ate entao subordinadas a secao Punctati. Na recircunscricao e revisao do genero Dahlstedtia Malme (capitulo 2) foram reconhecidas 16 especies incluindo as duas anteriormente aceitas e as 3 novas para a ciencia, e propostas 12 combinacoes novas e dois sinonimos novos. Dahlstedtia possui distribuicao neotropical, com centro de diversidade na porcao sudeste da America do Sul. O estudo visando o restabelecimento e revisao do genero Muellera L.f. (capitulo 3) resultou na sinonimizacao de Lonchocarpus sect. Laxiflori e dos generos Bergeronia e Margaritolobium com Muellera, totalizando 26 especies, das quais 10 novas. O genero e sulamericano, com duas especies atingindo a America Central. Estao sendo propostas seis lectotipificacoes, 10 sinonimizacoes e 17 combinacoes novas. Descricoes, ilustracoes, comentarios taxonomicos, mapas de distribuicao geografica e chaves para identificacao das especies foram apresentadas. A analise de datacao molecular revelou que Lonchocarpus s.s originou-se a cerca de 8,7±0,05Ma na America Central, diferentemente dos clados Dahlstedtia e Laxiflori que surgiram na America do Sul, em 6,3±0,05Ma e 8,0±0,09Ma, respectivamente, e que ocorreu pelo menos tres eventos de migracao deste genero da America Central para a do Sul e um unico para o continente africano. Abstract
-
Two new species of Lonchocarpus (Leguminosae, Papilionoideae, Millettieae) from Brazil
Kew Bulletin, 2010Co-Authors: Marcos José Da ,silva, Ana Maria Goulart Azevedo Tozzi, Gwilym P. LewisAbstract:Two new species of Lonchocarpus from Brazil, assigned to sect. Laxiflori Benth., are described and illustrated and their affinities, geographical distribution and conservation status are discussed. Lonchocarpus laticiferus from arboreal caatinga vegetation of Bahia State, and deciduous forest of Minas Gerais State is related to L. montanus A. M. G. Azevedo ex M. J. Silva & A. M. G. Azevedo. Lonchocarpus graciliflorus, known only from the rain forest of Parana, is morphologically similar to L. longiunguiculatus M. J. Silva & A. M. G. Azevedo.
-
Two new species of Lonchocarpus (Leguminosae, Papilionoideae, Millettieae) from Brazil
Kew Bulletin, 2010Co-Authors: Marcos José Da ,silva, Ana Maria Goulart Azevedo Tozzi, Gwilym P. LewisAbstract:Two new species of Lonchocarpus from Brazil, assigned to sect. Laxiflori Benth., are described and illustrated and their affinities, geographical distribution and conservation status are discussed. Lonchocarpus laticiferus from arboreal caatinga vegetation of Bahia State, and deciduous forest of Minas Gerais State is related to L. montanus A. M. G. Azevedo ex M. J. Silva & A. M. G. Azevedo. Lonchocarpus graciliflorus , known only from the rain forest of Paraná, is morphologically similar to L . longiunguiculatus M. J. Silva & A. M. G. Azevedo. Duas novas espécies de Lonchocarpus do Brasil, pertencentes à seção Laxiflori Benth., são descritas e ilustradas e tem suas afinidades, distribuições geográficas, além de seus status de conservação, discutidos. Lonchocarpus laticiferus occure na caatinga arbórea do estado da Bahia e nas florestas estacionais deciduais de Minas Gerais, o qual assemelha-se morfologicamente a L. montanus A. M. G. Azevedo ex M. J. Silva & A. M. G. Azevedo. Lonchocarpus graciliflorus , conhecida apenas das florestas ombrófilas do Paraná, que é semelhante morfologicamente a L . longiunguiculatus M. J. Silva & A. M. G. Azevedo.
-
Toxicidade e atividade antioxidante de flavonoides das cascas das raízes de Lonchocarpus filipes
Química Nova, 2009Co-Authors: Érica L. Santos, Emmanoel V. Costa, Francisco A. Marques, Nelissa P. Vaz, Beatriz Helena L. N. Sales Maia, Eva G. Magalhães, Ana Maria Goulart Azevedo TozziAbstract:The phytochemical investigation of dichloromethane extract from root bark of Lonchocarpus filipes Benth (Leguminosae) afforded four flavonoids including three dibenzoylmethane derivatives rarely found in nature. The structures were established based on their spectral data (1H and 13C NMR, 2D-NMR) as being: lanceolatin B (1), pongamol (2), (E)-7-O-methylpongamol (3) and (E)-9-O-methylpongamol (4). Compound (4) is described herein for the first time as a natural product. The extracts and the isolated compounds (1), (2) and (3) displayed high toxicity in the brine shrimp lethality assay. Only compound (2) showed antioxidant activity using a DPPH radical scavenging assay. This is the first report on the phytochemical study of Lonchocarpus filipes.
Mario Sousa S - One of the best experts on this subject based on the ideXlab platform.
-
especies nuevas y una lectotipificacion en Lonchocarpus leguminosae para mesoamerica
Revista Mexicana De Biodiversidad, 2011Co-Authors: Mario Sousa SAbstract:Se describen e ilustran 7 especies nuevas de Lonchocarpus (Millettieae, Papilionoideae): Lonchocarpus bracteolatus endemica de Honduras, L. hydrophilus endemica de Guatemala, L. nebularis endemica de Panama, L. sericocarpus endemica de Nicaragua, L. barbatus y L. multifoliolatus, ambas endemicas de la cuenca del golfo de Mexico, y L. congestiflorus que se ubica en las montanas de Chiapas hasta Honduras. Estas especies pertenecen a la sect. Densiflori Benth., sect. Obtusifolii (Benth.) M. Sousa y sect. Standleyi M. Sousa. En L. wendtii M. Sousa se designa lectotipo, debido a que 2 recolectas fueron citadas para el tipo.
-
New species of Lonchocarpus (Millettieae: Leguminosae) from Costa Rica and Panama; lectotypification of sect. Densiflori Benth
2011Co-Authors: Mario Sousa SAbstract:FOUR NEW SPECIES OF Lonchocarpus (MILLETTIEAE, PAPILIONOIDEAE), L. HABERI, L. LATISILIQUUS, L. MEGACARPUS AND L. MONTEVIRIDIS, ARE DESCRIBED AND ILLUSTRATED; TWO ARE ENDEMIC TO COSTA RICA, ONE TO PANAMA AND ONE IS FOUND IN BOTH COUNTRIES. OF THESE NEW SPECIES, THREE BELONG TO SECT. DENSIFLORI BENTH., WHICH IS HEREIN LECTOTYPIFIED; A KEY TO THE SECTION FOR COSTA RICA AND PANAMA IS PROVIDED.
-
especie nueva de Lonchocarpus leguminosae de nicaragaua y costa rica
Anales del Instituto de Biología serie Botánica; Vol 70 No 002 (1999), 2011Co-Authors: Mario Sousa SAbstract:SE DESCRIBE E ILUSTRA A UNA NUEVA ESPECIE DE Lonchocarpus (MILLETTIEAE, PAPILIONOIDEAE), L. CHIANGII, DE NICARAGUA Y COSTA RICA.
-
STANDLEYI UNA NUEVA SECCIÓN DEL GÉNERO Lonchocarpus (LEGUMINOSAE), NUEVAS ESPECIES Y SUBESPECIE PARA MESOAMÉRICA Y SUDAMÉRICA
Acta Botanica Mexicana, 2009Co-Authors: Mario Sousa SAbstract:Resumen es: Se describe una nueva seccion, sect. Standleyi, para el genero Lonchocarpus (Leguminosae, Papilionoideae, Millettieae) basada en forma esencial en concep...
-
Especies nuevas de Lonchocarpus (Millettieae: Leguminosae) para Costa Rica y Panamá; lectotipificación de la sect. Densiflori Benth
Revista Mexicana de Biodiversidad, 2005Co-Authors: Mario Sousa SAbstract:SE DESCRIBEN E ILUSTRAN CUATRO ESPECIES DE Lonchocarpus (MILLETTIEAE, PAPILIONOIDEAE), L. HABERI, L. LATISILIQUUS, L. MEGACARPUS Y L. MONTEVIRIDIS, DOS ENDEMICAS DE COSTA RICA, UNA DE PANAMA Y LA OTRA HABITA EN AMBOS PAISES. DE LAS ESPECIES NUEVAS, TRES PERTENECEN A LA SECT. DENSIFLORI BENTH., A LA CUAL SE LE LECTOTIPIFICA AQUI, Y SE ELABORO UNA CLAVE DE ESTA SECCION PARA COSTA RICA Y PANAMA.
Walter Gomez - One of the best experts on this subject based on the ideXlab platform.
-
efectividad del uso del barbasco Lonchocarpus utilis versus deltametrina en el control vectorial del aedes agypti en el alto huallaga 2008 2009
Applied Reconfigurable Computing, 2015Co-Authors: Walter Gomez, Segundo Rivera, Walter ParedesAbstract:Objetivos: Determinar la efectividad del uso del barbasco Lonchocarpus utilis versus deltametrina en el control vectorial del Aedes Aegypty en el Alto Huallaga. Material y Metodos: Estudio experimental, prospectivo, simple ciego. Las raices frescas de L. utilis, se seccionaron en trozos de 2 cm de diametro, y se sometieron a deshidratacion a 50 °C por 48 horas. Luego las raices secas fueron trituradas en un molino mecanico y tamizadas por un colador de malla fina, obteniendose como producto final un polvo fino que se uso en el rociado espacial del polvo de la raiz en agua destilada. Resultados: Existe diferencia estadisticamente significativa (p 0.05) entre el indice aedico despues de la aplicacion del barbasco, comparado con el indice aedico despues de la aplicacion de deltametrina, ambos productos tienen similar efectividad para el control vectorial del Aedes aegypti. La proporcion observada de Barbasco 4% y Deltametrina 1%, la mayor ventaja de la Deltametrina entendida como mayor efectividad para el control vectorial del Aedes aegypti, no es estadisticamente significativa. Conclusiones: La deltametrina tiene mayor efectividad que el barbasco lochocarpus utilis en el control vectorial del aedes agypti, esta diferencia no es estadisticamente significativa, por lo tanto se concluye que ambos productos son efectivos para el control vectorial del aedes aegypti, agregando que el uso del polvo de raiz de barbasco en el control de aedes aegypti, podria constituirse en una alternativa de uso en regiones pobres similares al estudio.
-
"Efectividad del uso del barbasco Lonchocarpus utilis versus deltametrina, en el control vectorial del aedes agypti, en el Alto Huallaga 2008 - 2009" Effectiveness of the use of the barbasco Lonchocarpus utilis versus deltametrina, in the control vec
2014Co-Authors: Walter Gomez, Segundo Rivera, Walter ParedesAbstract:SUMMARY Objective: Determining the effectiveness of the use of the barbasco Lonchocarpus utilis versus deltametrina in the control vectorial of the Aedes Aegypty in the high zone Huallaga. Materials and methods: Blind simple, prospective, experimental study. The fresh roots of L. utilis, they were splitted in pieces of 2 cm of diameter, and they were submitted to dehydration to 50 °C for 48 hours. Then the dry roots were crushed in a mechanical mill and sifted by a strainer of fine netting, being obtained as final product a fine dust that themselves use in the sprinkled spatial of the dust of the root in water distilled. Results: Statistically significant difference exists (p 0,05) among the index aedico after the application of the barbasco, compared with the index aedico after the application of deltametrina, both products have similar effectiveness for the control vectorial of the Aedes aegypti. The proportion observed of Barbasco 4% and Deltametrina 1%, the greater advantage of the Deltametrina understood as greater effectiveness for the control vectorial of the Aedes aegypti, is not statistically significant. Conclusions: The deltametrina has greater effectiveness that the barbasco lochocarpus utilis in the control vectorial of the aedes agypti, this difference is not statistically significant, therefore is concluded that both products are troops for the control vectorial of the aedes aegypti, adding that the use of the dust of root of barbasco in the control of aedes aegypti, would be able to be constituted in an alternative of use in similar poor regions to the study.
Segundo Rivera - One of the best experts on this subject based on the ideXlab platform.
-
efectividad del uso del barbasco Lonchocarpus utilis versus deltametrina en el control vectorial del aedes agypti en el alto huallaga 2008 2009
Applied Reconfigurable Computing, 2015Co-Authors: Walter Gomez, Segundo Rivera, Walter ParedesAbstract:Objetivos: Determinar la efectividad del uso del barbasco Lonchocarpus utilis versus deltametrina en el control vectorial del Aedes Aegypty en el Alto Huallaga. Material y Metodos: Estudio experimental, prospectivo, simple ciego. Las raices frescas de L. utilis, se seccionaron en trozos de 2 cm de diametro, y se sometieron a deshidratacion a 50 °C por 48 horas. Luego las raices secas fueron trituradas en un molino mecanico y tamizadas por un colador de malla fina, obteniendose como producto final un polvo fino que se uso en el rociado espacial del polvo de la raiz en agua destilada. Resultados: Existe diferencia estadisticamente significativa (p 0.05) entre el indice aedico despues de la aplicacion del barbasco, comparado con el indice aedico despues de la aplicacion de deltametrina, ambos productos tienen similar efectividad para el control vectorial del Aedes aegypti. La proporcion observada de Barbasco 4% y Deltametrina 1%, la mayor ventaja de la Deltametrina entendida como mayor efectividad para el control vectorial del Aedes aegypti, no es estadisticamente significativa. Conclusiones: La deltametrina tiene mayor efectividad que el barbasco lochocarpus utilis en el control vectorial del aedes agypti, esta diferencia no es estadisticamente significativa, por lo tanto se concluye que ambos productos son efectivos para el control vectorial del aedes aegypti, agregando que el uso del polvo de raiz de barbasco en el control de aedes aegypti, podria constituirse en una alternativa de uso en regiones pobres similares al estudio.
-
"Efectividad del uso del barbasco Lonchocarpus utilis versus deltametrina, en el control vectorial del aedes agypti, en el Alto Huallaga 2008 - 2009" Effectiveness of the use of the barbasco Lonchocarpus utilis versus deltametrina, in the control vec
2014Co-Authors: Walter Gomez, Segundo Rivera, Walter ParedesAbstract:SUMMARY Objective: Determining the effectiveness of the use of the barbasco Lonchocarpus utilis versus deltametrina in the control vectorial of the Aedes Aegypty in the high zone Huallaga. Materials and methods: Blind simple, prospective, experimental study. The fresh roots of L. utilis, they were splitted in pieces of 2 cm of diameter, and they were submitted to dehydration to 50 °C for 48 hours. Then the dry roots were crushed in a mechanical mill and sifted by a strainer of fine netting, being obtained as final product a fine dust that themselves use in the sprinkled spatial of the dust of the root in water distilled. Results: Statistically significant difference exists (p 0,05) among the index aedico after the application of the barbasco, compared with the index aedico after the application of deltametrina, both products have similar effectiveness for the control vectorial of the Aedes aegypti. The proportion observed of Barbasco 4% and Deltametrina 1%, the greater advantage of the Deltametrina understood as greater effectiveness for the control vectorial of the Aedes aegypti, is not statistically significant. Conclusions: The deltametrina has greater effectiveness that the barbasco lochocarpus utilis in the control vectorial of the aedes agypti, this difference is not statistically significant, therefore is concluded that both products are troops for the control vectorial of the aedes aegypti, adding that the use of the dust of root of barbasco in the control of aedes aegypti, would be able to be constituted in an alternative of use in similar poor regions to the study.
