24 results on '"Konno, Tatiana Ungaretti Paleo"'
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2. Antitubercular and immunomodulatory activities of Eugenia astringens n-hexane fraction
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Santiago-Carvalho, Igor, Simão, Thatiana Lopes Biá Ventura, Calixto, Sanderson Dias, de Albuquerque, Thalissa Cozentino, Konno, Tatiana Ungaretti Paleo, Salgado, Rafael Moysés, Muzitano, Michelle Frazão, Pinto, Shaft Corrêa, and Lasunskaia, Elena
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- 2022
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3. USO DE PLANTAS MEDICINAIS – DIFUSÃO DE INFORMAÇÕES ATRAVÉS DA EXTENSÃO UNIVERSITÁRIA
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Vieira, Ana Cláudia de Macêdo, primary, Medeiros, Thacid Kaderah Costa, additional, Barros, Silviane dos Reis Andrade, additional, Carmo, Jessica Borsoi Maia do, additional, Ferreira, Ana Paula Ribeiro de Carvalho, additional, Souza, Mariana Aparecida de Almeida, additional, Ferreira, Luciene de Andrade Quaresma, additional, Novais, João Paulo Guedes, additional, Castro, Paulo Fernando Ribeiro de, additional, Soares, Filipe dos Santos, additional, Vargas, Priscila Barbosa, additional, and Konno, Tatiana Ungaretti Paleo, additional
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- 2021
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4. Effects of UV-B radiation on secondary metabolite production, antioxidant activity, photosynthesis and herbivory interactions in Nymphoides humboldtiana (Menyanthaceae)
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Nocchi, Nathália, Duarte, Heitor Monteiro, Pereira, Renato Crespo, Konno, Tatiana Ungaretti Paleo, and Soares, Angélica Ribeiro
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- 2020
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5. ESTUDO MORFOLÓGICO E ANATÔMICO DE GALHAS FOLIARES INDUZIDAS POR CECIDOMYIIDAE EM ESPÉCIES DA RESTINGA DE MARICÁ – RJ
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Vieira, Ana Cláudia de Macêdo, primary, Cravo, Adriana da Cruz Presler, additional, Ferraris, Giselle Klabund, additional, Ferreira, Ana Paula Ribeiro de Carvalho, additional, Souza, Mariana Aparecida de Almeida, additional, Konno, Tatiana Ungaretti Paleo, additional, Campos, Naiara Viana, additional, Guimarães, André Luis de Alcantara, additional, Xavier, Quemuel Machado Perozi, additional, and Vieira, Marco Antonio da Silva, additional
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- 2021
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6. Dimensões Ecológicas, Geológicas e Humanas em Estudos de Longa-Duração no Parque Nacional da Restinga de Jurubatiba, Rio de Janeiro.
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SILVA, ADRIANO CALIMAN FERREIRA DA, primary, MONTEIRO, ALINE GOMES DIAS PINTO, additional, PETRY, ANA CRISTINA, additional, SILVA, ANA PAULA, additional, GRIPP, ANDERSON DA ROCHA, additional, FONSECA, ANDRÉ LUIZ DOS SANTOS, additional, FURTADO, ANDRÉ LUIZ DOS SANTOS, additional, AMADO, ANDRÉ MEGALI, additional, DIAS, ANDRÉ TAVARES CORRÊA, additional, SANTOS, ARIADNE VIEIRA LOBO DOS, additional, COSENDEY, BEATRIZ NUNES, additional, FELICE, BRUNO CORTAT, additional, ROSADO, BRUNO HENRIQUE PIMENTEL, additional, FORTE, BRUNO VASCONCELLOS GUIMARÃES, additional, MISSAGIA, CAIO CÉSAR CORREA, additional, SIQUEIRA, CARLA COSTA, additional, SANTOS, CARLOS EDUARDO VALÉRIO DOS, additional, ROCHA, CARLOS FREDERICO DUARTE, additional, BRAGA, CARYNE, additional, MILITÃO, CATIA MOURA, additional, VILELA, CLAUDIA GUTTERRES, additional, MARINHO, CLAUDIO CARDOSO, additional, LUZ, CYNTHIA FERNANDES PINTO DA, additional, FARIAS, DANIEL DA SILVA, additional, FRANCO, DANIEL ESTEVES, additional, FERNANDES, DANIEL SILVA, additional, BONATTO, DANIELLE DA CRUZ, additional, VRCIBRADIC, DAVOR, additional, VILLELA, DORA MARIA, additional, GUIMARÃES, EDSON AVELAR, additional, CAILLAVA-GOMES, EDUARDA REZENDE, additional, MATTOS, EDUARDO ARCOVERDE DE, additional, SODRÉ, ELDER DE OLIVEIRA, additional, CAMARA, ELLEN MARTINS, additional, BORGES, EMERSON LUIZ FLORENTINO, additional, CARAMASCHI, ÉRICA PELLEGRINI, additional, DARIO, FABIO DI, additional, VASCONCELLOS, FELIPE MESQUITA DE, additional, MARTINS-HATANO, FERNANDA, additional, PELICICE, FERNANDO MAYER, additional, ESTEVES, FRANCISCO DE ASSIS, additional, LEAL, GIULIANA FRANCO, additional, DUARTE, HEITOR, additional, BERGALLO, HELENA G., additional, LEMOS, HUDSON, additional, MIGUEL, INGRID RIBEIRO, additional, OLIVEIRA, JANE C. F., additional, SOUZA, JOÃO MARCELO SILVA DE, additional, SOUZA, JOÃO VÍTOR PASCHOAL DE, additional, SÁNCHEZ-BOTERO, JORGE IVÁN, additional, PEREIRA, JULIANE DE SOUSA, additional, PESSÔA, LEILA MARIA, additional, BRITO, LETICIA DA SILVA, additional, FISCHER, LUCIANO GOMES, additional, MATOS, LUÍS GUSTAVO ALVES DE, additional, TAVARES, LUÍSA ALÍCIDA FERNANDES, additional, CARMO, LUIZ FERNANDO, additional, CARDOSO, MANOELA WOITOVICZ, additional, PESSANHA, MARCELO BRAGA, additional, BARROS, MARCIA AGUIAR DE, additional, SANTOS, MARCOS CEZAR DOS, additional, FIGUEIREDO-BARROS, MARCOS PAULO, additional, ALVES, MARIA ALICE DOS SANTOS, additional, MACEDO, MARIANA CARDOSO, additional, XAVIER, MARIANA SAMPAIO, additional, ALMEIDA-SANTOS, MARLON, additional, MOLISANI, MAURÍCIO MUSSI, additional, MINCARONE, MICHAEL MAIA, additional, ARAÚJO, MÔNICA PACHECO DE, additional, MINELLO, MURILO, additional, BARTH, ORTRUD MONIKA, additional, GONÇALVES, PABLO RODRIGUES, additional, PINNA, PEDRO HENRIQUE, additional, CARVALHO, PEDRO HOLLANDA, additional, SANTOS, QUÉZIA SOUZA DOS, additional, FERREIRA, RAFAEL, additional, COSTA, RAFAEL NOGUEIRA, additional, SETUBAL, RAYANNE BARROS, additional, BOZELLI, REINALDO LUIZ, additional, SOUZA, RENATA DE, additional, BARTHOLOMEU, ROBSON LUCAS, additional, FELIX, RODRIGO WEBER, additional, MARTINS, RODRIGO LEMES, additional, FOLHARINI, SAULO DE OLIVEIRA, additional, MISUMI, SHANA YURI, additional, BATISTA, STEPHANE, additional, GUIMARÃES, TAÍS DE FÁTIMA RAMOS, additional, KONNO, TATIANA UNGARETTI PALEO, additional, LIMA, THIAGO GOMES DE, additional, MENEZES, VANDERLAINE AMARAL, additional, GOMES, VERÔNICA SOUZA DA MOTA, additional, FARJALLA, VINICIUS FORTES, additional, and TAVARES, WILLIAM CORRÊA, additional
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- 2023
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7. Seasonal Changes in the Size Distribution of Copepods Is Affected by Coastal Upwelling.
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Rosa, Judson da Cruz Lopes da, Matos, Thiago da Silva, da Silva, Débora Costa Brito, Reis, Carolina, Dias, Cristina de Oliveira, Konno, Tatiana Ungaretti Paleo, and Fernandes, Lohengrin Dias de Almeida
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UPWELLING (Oceanography) ,COPEPODA ,PLANKTON populations ,OCEAN temperature ,SEASONS - Abstract
Water temperature controls the physiology, growth rate, distribution, and behavior of most plankton populations in the sea and thus affects the energy transfer in marine ecosystems. The present study focuses on the influence of seasonal changes in sea surface temperature on phytoplankton and the size distribution of copepods in the Arraial do Cabo Upwelling System (Brazil), where a wind-driven coastal upwelling can lead to multiple distinct bottom-up cascade effects on the food web. To address the potential effect of the seasonal changes, environmental data were obtained and the abundance of plankton determined from monthly samples collected in triplicate from 2010 to 2014. The samples were analyzed on a Benchtop FlowCAM (FC), and copepods (<1000 µm) were classified according to their Ellipses Equivalent Major Axis using image analysis software ImageJ (IJ). For IJ analysis, a batch-processing macro was built to open all FC raw images and then crop each copepod individually into a single picture. Using these images, prosome and urosome lengths were manually measured with the straight-line tool in IJ. With the combinations of measurements obtained in the IJ adjusted as FC measurements, we established a new, faster, and more effective way to measure copepods. With the copepod size classification, we found that there is a cycle in copepod size combined with the upwelling cycle that is related to temperature rather than to phytoplankton growth. Copepod abundance as a whole peaked during the autumn, winter, and spring seasons. The method performed here proved that FC is an effective tool for classifying copepod sizes and detecting seasonal variation. [ABSTRACT FROM AUTHOR]
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- 2023
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8. Apocynaceae s.l. na Reserva Biológica da Represa do Grama, Descoberto, Minas Gerais, Brasil
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Matozinhos, Carolina Nazareth and Konno, Tatiana Ungaretti Paleo
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- 2008
9. Anti-mycobacterial and anti-inflammatory activity of restinga plants: a dual approach in searching for new drugs to treat severe tuberculosis
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Araujo, Marlon Heggdorne de, primary, Simão, Thatiana Lopes Biá Ventura, additional, Konno, Tatiana Ungaretti Paleo, additional, Guimarães, Denise Oliveira, additional, Leal, Ivana Correa Ramos, additional, Lasunskaia, Elena, additional, and Muzitano, Michelle Frazão, additional
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- 2021
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10. Anti-mycobacterial and immunomodulatory activity of n-hexane fraction and spathulenol from Ocotea notata leaves
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Costa, Isabela Francisca de Jesus Borges, primary, Simão, Thatiana Lopes Bia Ventura, additional, Calixto, Sanderson Dias, additional, Pereira, Rafaella Velloso, additional, Konno, Tatiana Ungaretti Paleo, additional, Pinto, Shaft Corrêa, additional, Tinoco, Luzineide Wanderley, additional, Lasunskaia, Elena, additional, Leal, Ivana Correa Ramos, additional, and Muzitano, Michelle Frazão, additional
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- 2021
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11. Chemical profile of Stachytarpheta schottiana by LC-HRMS/MS dereplication and molecular networking
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Silva, Marcos Vinicius Toledo e, primary, Garrett, Rafael, additional, Simas, Daniel Luiz Reis, additional, Konno, Tatiana Ungaretti Paleo, additional, Muzitano, Michelle Frazão, additional, Pinto, Shaft Corrêa, additional, and Barth, Thiago, additional
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- 2021
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12. Malvaceae of the Ibitipoca State Park, State of Minas Gerais, Brazil
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Fernandes-Júnior, Aluisio José Fernandes-Júnior Aluisio José and Konno, Tatiana Ungaretti Paleo Konno Tatiana Ungaretti Paleo
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campo rupestre ,Sida ,Floresta Atlântica ,florística ,taxonomia ,CIENCIAS BIOLOGICAS::BOTANICA [CNPQ] - Abstract
(Malvaceae do Parque Estadual do Ibitipoca, Estado de Minas Gerais, Brasil). O Parque Estadual do Ibitipoca localiza-se no sudeste do Estado de Minas Gerais e apresenta principalmente vegetação típica de campo rupestre. Foram encontradas 20 espécies de Malvaceae, distribuídas em 10 gêneros. O gênero Sida foi o mais representativo com oito espécies, seguido de Triumfetta com três espécies. Uma chave de identificação para as espécies, descrições morfológicas e ilustrações são apresentadas. (Malvaceae of Parque Estadual do Ibitipoca, Minas Gerais State, Brazil). The Parque Estadual do Ibitipoca is located in the southeast of Minas Gerais State, and presents mainly the rocky field vegetation type. Twenty species and 10 genera of Malvaceae were recorded in the Parque. Sida was the richest genus with eight species, followed by Triumfetta with three species. An identification key for species, as well as morphological descriptions and illustrations are provided.
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- 2016
13. Anti-mycobacterial and anti-inflammatory activity of restinga plants: a dual approach in searching for new drugs to treat severe tuberculosis.
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de Araujo, Marlon Heggdorne, Simão, Thatiana Lopes Biá Ventura, Konno, Tatiana Ungaretti Paleo, Guimarães, Denise Oliveira, Leal, Ivana Correa Ramos, Lasunskaia, Elena, and Muzitano, Michelle Frazão
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TUBERCULOSIS ,ANTI-inflammatory agents ,MYCOBACTERIUM bovis ,GAS analysis ,MASS spectrometers ,PLANT species ,TERPENES ,DICHLOROMETHANE - Abstract
Copyright of Rodriguésia is the property of Revista Rodriguesia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2021
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14. Malvaceae do Parque Estadual do Ibitipoca, Estado de Minas Gerais, Brasil
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Fernandes-Júnior, Aluisio José, primary and Konno, Tatiana Ungaretti Paleo, additional
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- 2017
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15. Contribuições do Programa de Pós-Graduação em Ciências Ambientais e Conservação na geração de conhecimento científico promotor do desenvolvimento regional e conservação dos ecossistemas costeiros do norte do estado do Rio de Janeiro
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Di Dario, Fabio, primary, Dos Santos Almada, Daniel, additional, De Araújo, Monica Pacheco, additional, De Azevedo, Alexandre, additional, De Barros, Marcos Paulo Figueiredo, additional, De Barros, Cintia Monteiro, additional, Bauer, Arthur De Barros, additional, Beraldini, Nathalia Goulart, additional, Bozelli, Reinaldo Luiz, additional, Catelani, Paula Araújo, additional, Camargo, Gustavo Arantes, additional, Nocchi, Nathalia Peixoto, additional, Duarte, Heitor Monteiro, additional, De Farias, Roberto Nascimento, additional, Feitosa, Natalia Martins, additional, Fischer, Luciano Gomes, additional, Da Fonseca, Rodrigo Nunes, additional, Gestinari, Lísia Mônica De Sousa, additional, Gonçalves, Pablo Rodrigues, additional, Konno, Tatiana Ungaretti Paleo, additional, Leal, Giuliana Franco, additional, Lemos, Hudson De Macedo, additional, Martins, Rodrigo Lemes, additional, Mincarone, Michael Maia, additional, De Miranda, Laissa Gomes, additional, Nepomuceno-Silva, José Luciano, additional, Pagliani, Bruna, additional, Petry, Ana Cristina, additional, Ruta, Christine, additional, Dos Santos, Vagner Leonardo Macedo, additional, Da Silva, Evelyn Raposo, additional, Da Silva, Rhennã Nascimento, additional, Soares, Angélica Ribeiro, additional, Vargas, Rafael Arêas, additional, Vieira, Thiago Wentzel de Melo, additional, Xavier, Mariana Sampaio, additional, Weber, Laura Isabel, additional, and Esteves, Francisco De Assis, additional
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- 2017
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16. Diversidade taxonômica de Apocynaceae na Serra Negra, MG, Brasil
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Matozinhos, Carolina Nazareth and Konno, Tatiana Ungaretti Paleo
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Mantiqueira Range ,Biodiversidade ,Floresta Atlântica ,Atlantic Forest ,Serra da Mantiqueira ,Biodiversity ,Gentianales - Abstract
Este trabalho apresenta o tratamento taxonômico das espécies de Apocynaceae na Serra Negra, Minas Gerais. A Serra Negra está localizada entre as coordenadas 21°57'22°S e 43°50'43°55'W, na Serra da Mantiqueira, e exibe um conjunto de formações vegetacionais com predomínio de Florestas Ombrófilas Densas e Campos Rupestres. A família Apocynaceae é considerada cosmopolita e possui cerca de 255 gêneros e 3.700 espécies. Na Serra Negra ocorrem 12 gêneros e 24 espécies. São apresentadas chaves de identificação para as espécies, descrições morfológicas, ilustrações e comentários sobre distribuição geográfica. This work aims to present a taxonomic treatment for Apocynaceae from the "Serra Negra", Minas Gerais State, Brazil. Serra Negra is located at Mantiqueira Range, between 21°57'22°S and 43°50'43°55'W, and is characterized by a mosaic of forest formations and rocky fields. Apocynaceae is a widespread family, composed by 3,700 species and 255 genera. In Serra Negra Mountains 12 genera and 24 species were identified. Keys for identification of species are presented with taxonomic descriptions, illustrations and ecological comments.
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- 2011
17. Antimycobacterial and Nitric Oxide Production Inhibitory Activities ofOcotea notatafrom Brazilian Restinga
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Costa, Isabela Francisca Borges, primary, Calixto, Sanderson Dias, additional, Heggdorne de Araujo, Marlon, additional, Konno, Tatiana Ungaretti Paleo, additional, Tinoco, Luzineide Wanderley, additional, Guimarães, Denise Oliveira, additional, Lasunskaia, Elena B., additional, Leal, Ivana Ramos Correa, additional, and Muzitano, Michelle Frazão, additional
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- 2015
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18. Diversidade taxonômica de Apocynaceae na Serra Negra, MG, Brasil
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Matozinhos, Carolina Nazareth, primary and Konno, Tatiana Ungaretti Paleo, additional
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- 2011
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19. Orchidaceae das Serras Negra e do Funil, Rio Preto, Minas Gerais, e similaridade florística entre formações campestres e florestais do Brasil
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Abreu, Narjara Lopes de, primary, Menini Neto, Luiz, additional, and Konno, Tatiana Ungaretti Paleo, additional
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- 2011
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20. Antimycobacterial and Nitric Oxide Production Inhibitory Activities of Ocotea notata from Brazilian Restinga.
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Costa, Isabela Francisca Borges, Calixto, Sanderson Dias, Heggdorne de Araujo, Marlon, Konno, Tatiana Ungaretti Paleo, Tinoco, Luzineide Wanderley, Guimarães, Denise Oliveira, Lasunskaia, Elena B., Leal, Ivana Ramos Correa, and Muzitano, Michelle Frazão
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- 2015
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21. Some Nomenclatural and Taxonomic Notes on Brazilian Ditassa (Apocynaceae: Asclepiadoideae)
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Konno, Tatiana Ungaretti Paleo, primary and Pereira, Jorge Fontella, additional
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- 2004
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22. Restauração ecológica de uma área degradada através de técnicas de nucleação, Juiz de Fora, MG
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Cordeiro, Alba Orli de Oliveira, Konno, Tatiana Ungaretti Paleo, Martins, Sebastião Venâncio, and Salimena, Fatima Regina Gonçalves
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CIENCIAS BIOLOGICAS::ECOLOGIA [CNPQ] ,Direct seeding ,Sacos de juta ,Jute bags ,Grass ,Nucleação ,Semeadura direta ,Ecological restoration ,Restauração ecológica - Abstract
CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior Este trabalho foi realizado com o objetivo de avaliar a utilização de um consórcio de técnicas para a restauração de áreas degradadas. Denominamos por “Sementeira de Juta” o conjunto constituído de sementes florestais dispostas dentro de sacos de juta preenchidos com substrato (esterco de boi, terra de sub-solo e adubo químico). Além disso, outros dois métodos foram propostos no consórcio, visando à diminuição da incidência da competição gerada por gramíneas exóticas invasoras: através do uso de sementes de adubo verde e a utilização de cobertura morta retirada na capina. O experimento foi conduzido na Universidade Federal de Juiz em área de pasto abandonado de Melinis minutiflora. Foram realizados 3 tratamentos, com 5 repetições cada, distribuídos aleatoriamente em 15 parcelas de 3x3m. O tratamento T1 constituiu de duas sementeiras de juta, dispostas lado a lado no centro das parcelas. No tratamento T2 além das sementeiras de juta foi acrescida a semeadura direta de 120 g de adubo verde no restante da parcela. E o tratamento T3 possuía as sementeiras com o revestimento das parcelas com cobertura morta. A cada sementeira de juta foi acrescida 20 sementes de 5 espécies arbóreas nativas da fase inicial da sucessão, em sacos de juta contendo 24kg de substrato. As análises realizadas foram: emergência das plântulas, sobrevivência, crescimento, e estimativa da cobertura vegetal de gramíneas. Foi registrada em nove meses de acompanhamento a emergência de 966 plântulas. Anadenanthera peregrina foi a espécie que obteve melhores porcentagens de emergência (90,8) as demais obtiveram porcentagens abaixo de 30%. No entanto, três espécies, Anadenanthera peregrina, Pelthophorum dubium, Schinus terebinthifolius obtiveram porcentagens de sobrevivência acima de 90%, Trema micrantha, 75% e Cecropia pachystachya, 65%. A comparação entre as análises realizadas para os tratamentos não apresentaram diferença significativa. Já o número de indivíduos amostrado com tamanho ≥ 30 cm foi significativamente diferente dos < 30 cm. Os tratamentos T1 e T3 demonstraram contribuir para o maior crescimento das plantas. Assim, o uso do consórcio de técnicas foi eficaz na melhoria das condições de semeadura direta para o estabelecimento das plantas. This thesis aims to evaluate the usage of a group of techniques for the restoration of degraded areas. The addition of native forest seeds inside a jute bag filled with substrate prepared originated the Jute Seed Bag technique. Two other methods are proposed to be applied with the Jute Seed Bags in order to avoid the competition of exotic grass species: the application of herbaceous forage seeds and the use of dried grass specimens to cover the soil around the bags. We conducted the experiment in an area of the Universidade Federal de Juiz de Fora that was infested with Melinis minutiflora. Three different treatments were applied, with five repetitions each, randomly distributed in fifteen parcels of 3x3 m. T1 treatment was characterized by two Juta Seed Bags side by side within the parcel. T2 treatment was represented by the direct seeding of 120 g of herbaceous forage along with the Jute Seed Bags. T3 treatment represented the application of dried grass specimens around the bags. Each Jute Seed Bag had 20 seeds of 5 pioneer native tree species within 24 kg of prepared earth. We analysed the seedlings emergence, survival, growth and estimation of the grass cover and after nine months we registered the emergence of 966 seedlings. The Anadenanthera peregrina species registered the best “emergencia” rate, 90.8%, while the other species were below 30%. On the other hand, three species, Anadenanthera peregrina, Pelthophorum dubium, Schinus terebinthifolius had survival rates above 90%, while Trema micrantha had 75% and Cecropia pachystachya, 65%. No significant implication aroused from the comparison of the different treatments, but the specimens with more than 30 cm was significantly different from those with less than 30 cm. This might mean that treatments T1 and T3 contributed for a more efficient plant growth. Therefore, the usage of allied methods represented by the Jute Seed Bag technique can improve the establishment of native plants.
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- 2010
23. Ecologia e similaridade de Orchidaceae em um trecho da Serra da Mantiqueira na Zona da Mata de Minas Gerais, Brasil
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Abreu, Narjara Lopes de, Konno, Tatiana Ungaretti Paleo, Faria, Ana Paula Gelli de, and Barros, Fábio de
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CIENCIAS BIOLOGICAS::ECOLOGIA [CNPQ] ,Open rocky grasslands ,Conservação ,Biodiversidade ,Monocotiledôneas ,Campo rupestre ,Biodiversity ,Conservation ,Monocotyledons - Abstract
CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior Neste trabalho, é apresentada a lista de espécies de Orchidaceae da Serra Negra/Serra do Funil (SN/SF), associada à distribuição das espécies ao longo do gradiente altitudinal e ao mosaico de ambientes encontrados na área. A flora de Orchidaceae da SN/SF, também é investigada sob aspectos das relações florísticas com 29 localidades nos estados da região Sudeste do Brasil, Bahia, Paraná, Rio Grande do Sul e Distrito Federal. A área de estudo está inserida no complexo de serras da Mantiqueira, na Zona de Mata de Minas Gerais, local muito interessante biologicamente. Foram realizadas sete expedições à área, sendo os espécimes depositados no herbário CESJ. O gradiente altitudinal foi dividido em oito classes com 100m de amplitude. As fisionomias foram definidas informalmente como interior de mata, campo, área de transição campo-mata e área degradada. As informações do habitat e altitude de ocorrência dos espécimes foram obtidas in situ, ou retiradas do seu rótulo de herbário. Através do teste qui-quadrado (χ2), foi testada a associação entre as categorias de preferência por substrato e as classes altitudinais. Para analisar a similaridade florística entre as 29 localidades, utilizou-se o coeficiente de Sørensen, o algoritmo UPGMA e 5000 replicações de bootstrap. O teste de Mantel foi utilizado para testar a correlação entre a distância geográfica e a similaridade florística. Foram registradas 109 espécies de orquídeas, em maioria (51%) epífitas. Os microhabitats encontrados nos interiores das matas e nas regiões de campo resguardam as maiores riquezas, bem como muitas espécies exclusivas, reforçando a importância dos mesmos, na conservação das orquídeas. As classes 900-1000m, 1301-1400m e 1501-1600m, concentram a maior riqueza de espécies, fato atribuído ao grau de conservação da vegetação e também às suas características ambientais, como umidade e heterogeneidade de habitats. O teste χ2 mostrou não existir associação entre as categorias de preferência por substrato (terrícola e epífita) e as classes de altitude. A análise de agrupamento mostrou alta significância estatística, e índices de similaridade baixos, exceto para os grupos formados por Serra Negra/ Serra do Funil + Parque Estadual do Ibitipoca e Parque Estadual da Ilha do Cardoso + Estação Ecológica Juréia-Itatins. A característica mais visível nos grupos representados no dendrograma é o agrupamento das áreas com alguma semelhança ambiental. A SN/SF mostrou-se mais similar a outras áreas de campo rupestre sob influência da Mata Atlântica, e também está associada ao Parque Nacional do Itatiaia e a Reserva Biológica de Macaé de Cima, com cerca de 56% de espécies compartilhadas, sugerindo sua posição como corredor florístico, entre as serras do Itatiaia e do Ibitipoca. As regiões de campos rupestres foram destacadas no dendrograma, em termos particularidades florísticas. O teste de Mantel revelou não haver associação entre a similaridade florística e as distâncias geográficas entre as áreas. Para a definição dos fatores bióticos e abióticos que determinam a similaridade florística são sugeridos estudos posteriores, utilizando outros métodos multivariados, juntamente a estudos biogeográficos. The presente work aims to present a species list of Orchidaceae associated to an assessment of distributional patterns along an altitudinal gradient and a correlation with habitats mosaics at SerraNegra/Serra do Funil (SN/SF). The present study also aimed to investigate the floristic similarities of Orchidaceae from SerraNegra/Serra do Funil (Rio Preto County, Minas Gerais State, Brazil) with 29 floras from sites in Southeastern Brazil, Distrito Federal, Bahia, Paraná, and Rio Grande do Sul States. Those mountains are located in Southern Mantiqueira Range, at Minas Gerais State, an very interesting biological site. Field work consisted on seven expedition. Collections are deposited at CESJ. The altitudinal gradient was divided in classes of 100m. The phytophysiognomies were defined informally, as underforest, Field, transitional área and degraded área. Habitat and elevation data were obtained in situ or taken from plant labels. The associations between preferred substrate and altitudinal classes were tested by Chi-Square test. The cluster analyses used UPGMA algorithm based on Sorensen coefficient. The clusters’ support was tested by bootstrap analyses with 5000 replications. The Mantel Test was applied to evaluate the relation between the floristic similarity and the geographical distance. There were registered 109 species of Orchidaceae. The epifitic species represent 51% of the richness. The species are distributed in the interior of the forests and also along the open fields. Most of them were exclusive of those habitats. The altidutinal classes with highest richness (900-1000m, 1301-1400m e 1501-1600m) were the most preserved areas at the study site and their environmental and phytophysionomic heterogeneity should justify that richness. The Chi-Square Test showed no association between life forms (terrestrial and epifitic) and altitudinal classes. The result of the cluster analyses was statistically significant, and were found low similarity indices, exceptions are the clusters composed by Serra Negra/Serra do Funil + Parque Estadual do Ibitipoca and Parque Estadual da Ilha do Cardoso+Estação Ecológica Juréia-Itatins. The most relevant result was that clusters grouped sites environmental similar. The studied area (SN/SF) showed to be more related to other sites of open rocky grasslands under the influence of the Atlantic Forest. The SN/SF also showed similarity with Parque Nacional do Itatiaia and Reserva Biológica de Macaé de Cima, sharing approximately 56% of the Orchidaceae species, they are suggesting that SN/SF should be considered a floristic corridor between sites in Serra da Mantiqueira. The sites open rocky grasslands were highlight due their special floristics features. The Mantel test revealed no association between the floristic similarity and the geographical distance of the areas. The questions remain opened in relation to what factors are influencing the diversity and the distributional patterns of Orchidaceae, then other ordination tests ordination, including abundancy and environmental data should be applied.
- Published
- 2010
24. The Hydroalcoholic Extract of Leaves of Mandevilla moricandiana Induces NO-Mediated Vascular Relaxation.
- Author
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Ferreira LL, Gomes MV, Paes BM, do Carmo PL, Konno TU, Esteves FA, Lopes NP, Tomaz JC, Leal IC, Guimarães DO, Muzitano MF, and Raimundo JM
- Subjects
- Animals, Aorta, Thoracic drug effects, Cyclic GMP metabolism, Dose-Response Relationship, Drug, Endothelium, Vascular drug effects, Male, Muscle, Smooth, Vascular blood supply, Muscle, Smooth, Vascular drug effects, NG-Nitroarginine Methyl Ester adverse effects, Nitric Oxide metabolism, Phenylephrine adverse effects, Plant Extracts chemistry, Plant Extracts isolation & purification, Plant Leaves chemistry, Rats, Rats, Wistar, Vasoconstrictor Agents adverse effects, Vasodilator Agents chemistry, Vasodilator Agents isolation & purification, Apocynaceae chemistry, Plant Extracts pharmacology, Vasodilation drug effects, Vasodilator Agents pharmacology
- Abstract
Natural products extracted from plants represent a valuable source of new bioactive substances. Many studies describe the potential of plant products for the treatment of cardiovascular diseases. Species of the Mandevilla genus have been studied for their biological activities, mainly as antioxidant, anti-inflammatory, and vasorelaxant. However, the phytochemical and pharmacological profiles of Mandevilla moricandiana have not been investigated yet. The aim of this study was to evaluate the vasodilator effect of the hydroalcoholic extract of the leaves of M. moricandiana , as well as its chemical profile. Chemical analysis and quantification of major compounds were performed by HPLC analysis. Total flavonoid content was quantified based on rutin equivalents, and major compounds were identified based on HPLC-DAD-MS analysis. M. moricandiana leaf extract-induced vasodilation was investigated in rat aortic rings precontracted with phenylephrine. The total flavonoids were quantified as 3.25 ± 0.11 % w/w of the hydroalcoholic leaf extract, and HPLC-DAD-MS allowed for the identification of luteolin and quercetin glycosides. The maximal relaxant effect of the hydroalcoholic leaf extract was 86.07 ± 1.68 % at a concentration of 30 µg/mL (p < 0.05; n = 6). The concentration of hydroalcoholic extract of the leaves of M. moricandiana necessary to reduce phenylephrine-induced contractions of the endothelium-intact aorta by 50 % was 0.82 ± 0.10 µg/mL. M. moricandiana leaf extract-induced vasodilation was abolished in aortas pretreated with NG-nitro-L-arginine methyl ester and 1H-[1,2,4]oxadiazolo-[4,3- α ]quinoxalin-1-one. In addition, diphenhydramine partially inhibited the effect of the hydroalcoholic extract of the leaves of M. moricandiana . Thus, M. moricandiana -induced relaxation depends on the endothelium and on the activation of the nitric oxide/cyclic GMP pathway, with the involvement of endothelial histamine H
1 receptors. Luteolin and quercetin glycosides seem to contribute to the extract activity., (Georg Thieme Verlag KG Stuttgart · New York.)- Published
- 2017
- Full Text
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