Results 131 to 140 of about 1,017 (151)

Picramnia vinacea Londono-Ech. & A. M. Trujillo 2023, sp. nov.

2023
Picramnia vinacea Londoño-Ech. & A.M.Trujillo, sp. nov. (Figs 6–8) Type:— COLOMBIA. Antioquia: Mun. Maceo, DRMI del Río Alicante, vereda Santa Barbara, cerca a los predios de la Hacienda Santa Barbara, unidad agrícola familiar número 10, 462 m, 6°32ʹ57.69ʹʹN, 74°37ʹ28.90ʹʹW, 19 Dec 2021 (♀ fl & fr), Trujillo et al. 309 (holotype: HUA!; isotype: MEDEL!).
Londoño-Echeverri, Yeison, Trujillo-López, Ana María   +1 more
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Casabitoa perfae (Euphorbiaceae)-A New Synonym of Picramnia Dictyoneura (Simaroubaceae)

Brittonia, 1994
Casabitoa perfae Alain (Euphorbiaceae) was rediscovered in Alto de Casabito, Cordillera Central, Dominican Republic and was found to be identical withPicramnia dictyoneura (Urban) Urban (Simaroubaceae).
Thomas A. Zanoni, Ricardo G. Garcia G.
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Structure Elucidation and Absolute Configuration Determination of Nortriterpenoids from Picramnia glazioviana

Journal of Natural Products, 2020
In this study, HPLC-PDA-HRMS-SPE-NMR data were used for initial analysis of the CH2Cl2 fraction of an EtOH extract of the leaves of Picramnia glazioviana. The HRMS, UV, and NMR data obtained from the HPLC-PDA-HRMS-SPE-NMR analysis were used to direct semipreparative HPLC isolation toward nortriterpenoids, which resulted in the isolation of 18 new and ...
Leila Gimenes, Liany Luna-Dulcey, Joao M. Batista, Fernando M. dos Santos, Cecília P. Popolin, Marcia R. Cominetti, Joao B. Fernandes, Dan Staerk   +7 more
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Especie nueva de Picramnia (Picramniaceae) del estado de Guerrero, México

Brittonia, 2015
Se describe e ilustra a Picramnia thomasii, como una especie nueva del estado de Guerrero, Mexico. La especie nueva se relaciona con P. guerrerensis, pero difiere por tener foliolos con indumento en enves, inflorescencia estaminada de mayores dimensiones y con mas glomerulos, petalos de forma y color diferente, estambres con mayor longitud, frutos ...
Jaime Jiménez Ramírez, César Adrián González Martínez   +1 more
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ChemInform Abstract: Anthrone and Oxanthrone C,O‐Diglycosides from Picramnia teapensis.

ChemInform, 2001
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Tatiana Rodriguez‐Gamboa, Sandra R. Victor, Joao B. Fernandes, Edson Rodrigues Fo, M. Fatima das G. F. da Silva, Paulo C. Vieira, Fernando C. Pagnocca, Odair C. Bueno, Maria Jose A. Hebling, Oscar Castro C.   +9 more
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Anthrone and Oxanthrone C-Glycosides from Picramnia latifolia Collected in Peru

Journal of Natural Products, 2004
Cytotoxicity-based, bioassay-guided fractionation of the chloroform-soluble extracts of both the roots and leaves of Picramnia latifolia led to the isolation of two new anthrone C-glycosides, picramniosides G (1) and H (2), two new oxanthrone C-glycosides, mayosides D (3) and E (4), and a new benzanthrone natural product, 6,8-dihydroxy-10-methyl-7H ...
Fredyc, Diaz, Hee-Byung, Chai, Qiuwen, Mi, Bao-Ning, Su, Jose Schunke, Vigo, James G, Graham, Fernando, Cabieses, Norman R, Farnsworth, Geoffrey A, Cordell, John M, Pezzuto, Steven M, Swanson, A Douglas, Kinghorn   +11 more
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A New Species of Picramnia (Simaroubaceae) from Amazonian Peru

Brittonia, 1990
A new and rare species,Picramnia bullata, is described, illustrated, and compared to its closest relatives It is unique in its hirsute pubescence, numerous, elongate, bullate leaflets, and long, pendent, unbranched inflorescences.
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A Conspectus of Mexican and Central American Picramnia (Simaroubaceae)

Brittonia, 1988
A complete checklist with synonymy and notes is provided for the Mexican and Central American species ofPicramnia. A key to all taxa of the region is included. Four new taxa (Picramnia guerrerensis, P. hirsuta, P. deflexa, andP. antidesma subsp.nicaraguensis) are described and illustrated, and a new combination (Picramnia antidesma subsp.fessonia) is ...
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Treatment of real wastewater with TiO2-films sensitized by a natural-dye obtained from Picramnia sellowii

Journal of Environmental Chemical Engineering, 2016
Abstract A natural dye extracted from Picramnia sellowii (Chokanari) was used to prepare sensitized TiO 2 films. Dyes and heterotrophic microorganisms present in wastewater were treated by photocatalysis using visible light. A factorial design 2 3 was employed to select the operational conditions to sensitize TiO 2 films.
J.A. Fernández, A. Suan, J.C. Ramírez, J. Robles, J.C Salcedo, A.M. Pedroza, C.E. Daza   +6 more
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Picraviane A and B: Nortriterpenes with limonoid-like skeletons containing a heptanolide E-ring system from Picramnia glazioviana

Phytochemistry, 2019
Two highly oxygenated nortriterpenes, picraviane A and B, were isolated from the ethanolic extract of Picramnia glazioviana Engl. The structures were determined by analysis of HRMS and 2D NMR spectroscopic data. Single-crystal X-ray diffraction data was also obtained for picraviane B.
Gimenes, Leila, Batista Junior, Joao Marcos, dos Santos Junior, Fernando Martins, Souza, Matheus da Silva, Luna-Dulcey, Liany, Ellena, Javier, Cominetti, Marcia Regina, da Silva, Maria Fatima das Graças Fernandes, Vieira, Paulo Cezar, Fernandes, Joao Bastita, Stærk, Dan   +10 more
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