Zobrazeno 1 - 10 of 289 pro vyhledávání: '"João B Fernandes"'
1
Akademický článek
INSECTICIDAL AND FUNGICIDAL ACTIVITY OF A MAGNESIUM COMPOUND CONTAINING ISOVANILLIC ACID AGAINST LEAF-CUTTING ANT AND ITS SYMBIOTIC FUNGUS
Autor: Eldevan S. Silva, Rafael C. Marchi, Carla Sthefane P. Matos, Maria Fátima G. F. Silva, João B. Fernandes, Odair C. Bueno, Rose M. Carlos
Publikováno v: Química Nova, Vol 44, Iss 3, Pp 267-271 (2021)
Pesticides offer a simple, cost-effective solution to ensure food supplies for a growing world population. However, their environmental performance needs improvement if pesticides are to continue contributing importantly. This study explores the inse
Externí odkaz: https://doaj.org/article/ff1aa89c9fe54c6f8045903a37175fd6
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2
Nortriterpenes, chromones, anthraquinones, and their chemosystematics significance in Meliaceae, Rutaceae, and Simaroubaceae (Sapindales)
Autor: Jéssica Cristina Amaral, Luciano da Silva Pinto, João B. Fernandes, Maria Fátima das Graças Fernandes da Silva, Moacir Rossi Forim, Danielle Fernandes da Silva
Publikováno v: Brazilian Journal of Botany. 45:15-40
In this review, our analyses of the metabolic routes of limonoids and quassinoids—with respect to their occurrence in the families Rutaceae, Meliaceae, and Simaroubaceae—suggest a disjunction between the Simaroubaceae (characterized by quassinoid
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bba448f6f8e953c3060c0c47b1556194
https://doi.org/10.1007/s40415-021-00733-9
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3
Efficacy and safety of primary, early and late needle-knife fistulotomy for biliary access
Autor: Mário Dinis-Ribeiro, Jorge Canena, Luisa M. Figueiredo, Pietro Familiari, Tarcísio Araújo, João B. Fernandes, Luís Carvalho Lourenço, David Horta, Luis Felipe Dias Lopes, Gonçalo Alexandrino, M Moreira
Publikováno v: Scientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
Scientific Reports
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
European Society of Gastrointestinal Endoscopy recommends needle-knife fistulotomy (NKF) as the preferred precut technique. However, there is little information on whether NKF performed at different times is associated with different success and adve
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16fed767fca59a628d2c48d9239ce609
https://doaj.org/article/241d71d011384f28929e28930d866f9d
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4
Akademický článek
New Limonoids from Hortia oreadica and Unexpected Coumarin from H. superba Using Chromatography over Cleaning Sephadex with Sodium Hypochlorite
Autor: Vanessa G.P. Severino, Sâmya D.L. de Freitas, Patrícia A.C. Braga, Moacir Rossi Forim, M. Fátima das G.F. da Silva, João B. Fernandes, Paulo C. Vieira, Tiago Venâncio
Publikováno v: Molecules, Vol 19, Iss 8, Pp 12031-12047 (2014)
Previous investigations of H. oreadica reported the presence of a wide spectrum of complex limonoids and dihydrocinnamic acids. Our interest in the Rutaceae motivated a reinvestigation of H. oreadica, H. brasiliana and H. superba searching for other
Externí odkaz: https://doaj.org/article/3a74615b01de4f82a87eae557d92d3b7
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5
Toxicity of rhizomes of the invasive Hedychium coronarium (Zingiberaceae) on aquatic species
Autor: João B. Fernandes, Rosane Oliveira Costa, Evaldo Luiz Gaeta Espíndola, Bruna Horvath Vieira, Julia Lima Ribeiro Ferro, Alany Ingrid Ribeiro, Dalva Maria da Silva Matos
Publikováno v: Biological Invasions. 23:2221-2231
The production and release of chemical compounds by invasive plants can affect competitors and native species overall, destabilizing ecological interactions and harming ecosystem functioning. Hedychium coronarium is an invasive macrophyte common on B
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4b79c06ade8906764c78939af4ca8d5d
https://doi.org/10.1007/s10530-021-02501-y
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6
Akademický článek
Microwave-Assisted Extraction of Ricinine from Ricinus communis Leaves
Autor: Liliane Nebo, Rosa M. Varela, João B. Fernandes, Miguel Palma
Publikováno v: Antioxidants, Vol 8, Iss 10, p 438 (2019)
The alkaloid ricinine (3-cyano-4-methoxy-N-methyl-2-pyridone) is found in different parts of the Ricinus communis plant and is known to possess several bioactive properties, including strong antioxidant activity. In this study, a new microwave-assist
Externí odkaz: https://doaj.org/article/8d5518400a0a4f99a80120ecca4019c8
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7
Biotransformation of pungent constituents from ginger (Zingiber officinale Roscoe) by Colletotrichum gloeosporioides yields oxidative ortho–ortho coupling products
Autor: Paulo C. Vieira, Roberta Marques Dias de Ávila, Leonardo Toffano, Maria Fátima das Graças Fernandes da Silva, João B. Fernandes, Lorena R.F. de Sousa
Publikováno v: Biocatalysis and Biotransformation. 40:95-106
This work investigated the biotransformation of ginger constituents (zingerone, [6]-shogaol, [6]-gingerol, and methyl-[6]-gingerol) by the pathogenic fungus Colletotrichum gloeosporioides. Experime...
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8d26ca086d764c7d78c61beff1509dc5
https://doi.org/10.1080/10242422.2021.1878159
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8
Insecticidal activity of copper (II) complexes with flavanone derivatives
Autor: Antonio Bernardo, Maria Fátima das Graças Fernandes da Silva, Gracielle Oliveira Sabbag Cunha, Moacir Rossi Forim, João B. Fernandes, Ana Carolina Volante, Andreia Pereira Matos, Paulo C. Vieira, André Lucio Franceschini Sarria
Publikováno v: Natural Product Research. 36:1342-1345
In this work, we describe the insecticidal activity against Spodoptera frugiperda of flavanone derivatives (naringin, naringenin and hesperidin) complexed to copper (II). For the assays, the compounds were incorporated into an artificial diet and off
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a6fa578eefb50c799744ce3f0df158eb
https://doi.org/10.1080/14786419.2020.1868465
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10
Akademický článek
Atividade inseticida de óleos essenciais de Pelargonium graveolens l'Herit e Lippia alba (Mill) N. E. Brown sobre Spodoptera frugiperda (J. E. Smith)
Autor: Edenilson dos S. Niculau, Péricles B. Alves, Paulo Cesar de L. Nogueira, Valéria Regina de S. Moraes, Andréia P. Matos, Antonio R. Bernardo, Ana C. Volante, João B. Fernandes, Maria F. G. F. da Silva, Arlene G. Corrêa, Arie F. Blank, Anderson de C. Silva, Leandro do P. Ribeiro
Publikováno v: Química Nova, Vol 36, Iss 9, Pp 1391-1394 (2013)
Insecticidal activity of essential oils of Pelargonium graveolens, Lippia alba and compounds geraniol, linalool, 1,8-cineole, limonene, carvone, citral and Azamax® were evaluated against Spodoptera frugiperda. Topical application assay showed essent
Externí odkaz: https://doaj.org/article/b82af7f7953642b1bfef8a3375914ac7
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