| Records |
| Author |
Rodrigues, A.M.S.; Theodoro, P.N.E.T.; Eparvier, V.; Basset, C.; Silva, M.R.R.; Beauchene, J.; Espindola, L.S.; Stien, D. |
| Title |
Search for Antifungal Compounds from the Wood of Durable Tropical Trees |
Type |
Journal Article |
| Year |
2010 |
Publication  |
Journal of Natural Products |
Abbreviated Journal |
J. Nat. Prod. |
| Volume |
73 |
Issue |
10 |
Pages |
1706-1707 |
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| Abstract |
Research on antifungal compounds from the durable wood from French Guiana Amazonian forest trees highlights the correlation between the activity of their extracts against wood-rotting fungi and human pathogens. The fractionation of an ethyl acetate extract of Sextonia rubra wood led to the isolation of rubrenolide (1) and rubrynolide (2). The potential of compounds 1 and 2 is described through the evaluation of their activity against 16 pathogenic fungi and their cytotoxicity toward NIH-3T3 mammalian fibroblast cells. |
| Address |
[Rodrigues, Alice M. S.; Eparvier, Veronique; Basset, Charlie; Espindola, Laila S.; Stien, Didier] Univ Antilles Guyane, CNRS, UMR ECOFOG, F-97300 Cayenne, France, Email: darvenne@unb.br |
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AMER CHEMICAL SOC |
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0163-3864 |
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ISI:000283288900015 |
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EcoFoG @ eric.marcon @ |
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25 |
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Cabanillas, B.J.; Le Lamer, A.C.; Castillo, D.; Arevalo, J.; Rojas, R.; Odonne, G.; Bourdy, G.; Moukarzel, B.; Sauvain, M.; Fabre, N. |
| Title |
Caffeic Acid Esters and Lignans from Piper sanguineispicum |
Type |
Journal Article |
| Year |
2010 |
Publication |
Journal of Natural Products |
Abbreviated Journal |
J. Nat. Prod. |
| Volume |
73 |
Issue |
11 |
Pages |
1884-1890 |
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| Abstract |
Three new caffeic acid esters (1-3), four new lignans (4-7), and the known compounds (7'S)-parabenzlactone (8), dihydrocubebin (9), and justiflorinol (10) have been isolated from leaves of Piper sanguineispicum. Their structures were determined by spectroscopic methods, including 1D and 2D NMR, HRCIMS, CD experiments, and chemical methods. Compounds 1-10 were assessed for their antileishmanial potential against axenic amastigote forms of Leishmania amazonensis. Caffeic acid esters 1 and 3 exhibited the best antileishmanial activity (IC50 2.0 and 1.8 μM, respectively) with moderate cytotoxicity on murine macrophages. |
| Address |
[Cabanillas, Billy Joel; Le Lamer, Anne-Cecile; Odonne, Guillaume; Bourdy, Genevieve; Moukarzel, Beatrice; Sauvain, Michel; Fabre, Nicolas] Univ Toulouse, UPS, UMR 152, Lab Pharmacochim Subst Nat & Pharmacophores Redox, F-31062 Toulouse 9, France, Email: michel.sauvain@ird.fr |
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AMER CHEMICAL SOC |
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0163-3864 |
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ISI:000284559100024 |
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EcoFoG @ eric.marcon @ |
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74 |
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Nirma, C.; Eparvier, V.; Stien, D. |
| Title |
Antifungal agents from Pseudallescheria boydii SNB-CN73 isolated from a nasutitermes sp. termite |
Type |
Journal Article |
| Year |
2013 |
Publication |
Journal of Natural Products |
Abbreviated Journal |
J. Nat. Prod. |
| Volume |
76 |
Issue |
5 |
Pages |
988-991 |
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| Abstract |
Defense mutualisms between social insects and microorganisms have been described in the literature. The present article describes the discovery of a Pseudallescheria boydii strain isolated from Nasutitermes sp. The microbial symbiont produces two antifungal metabolites: tyroscherin and N-methyltyroscherin, a compound not previously described in the literature. Methylation of tyroscherin has confirmed the structure of N-methyltyroscherin. Both compounds are effective antifungal agents with favorable selectivity indices for Candida albicans and Trichophyton rubrum. © 2013 The American Chemical Society and American Society of Pharmacognosy. |
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UMR Ecofog, Institut Pasteur de la Guyane, Université des Antilles et de la Guyane, 23 Avenue Pasteur, 97306 Cayenne, France |
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01633864 (Issn) |
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Export Date: 6 June 2013; Source: Scopus; Coden: Jnprd; :doi 10.1021/np4001703; Language of Original Document: English; Correspondence Address: Eparvier, V.; CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France; email: veronique.eparvier@icsn.cnrs-gif.fr |
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EcoFoG @ webmaster @ |
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491 |
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Touré, S.; Nirma, C.; Falkowski, M.; Dusfour, I.; Boulogne, I.; Jahn-Oyac, A.; Coke, M.; Azam, D.; Girod, R.; Moriou, C.; Odonne, G.; Stien, D.; Houel, E.; Eparvier, V. |
| Title |
Aedes aegypti Larvicidal Sesquiterpene Alkaloids from Maytenus oblongata |
Type |
Journal Article |
| Year |
2017 |
Publication |
Journal of Natural Products |
Abbreviated Journal |
Journal of Natural Products |
| Volume |
80 |
Issue |
2 |
Pages |
384-390 |
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| Abstract |
Four new sesquiterpene alkaloids (1-4) with a β-dihydroagrofuran skeleton and a new triterpenoid (5) were isolated from an ethyl acetate extract of Maytenus oblongata stems. Their structures were elucidated using 1D and 2D NMR spectroscopy as well as MS and ECD experiments. The M. oblongata stem EtOAc extract and the pure compounds isolated were tested for larvicidal activity against Aedes aegypti under laboratory conditions, and compounds 2 and 3 were found to be active. © 2017 The American Chemical Society and American Society of Pharmacognosy. |
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Laboratoire de Biodiversité et Biotechnologies Microbiennes (LBBM), Sorbonne Universités, UPMC Univ. Paris 06, CNRS, Observatoire Océanologique, Banyuls-sur-Mer, France |
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Export Date: 13 March 2017 |
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no |
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EcoFoG @ webmaster @ |
Serial |
743 |
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Fox Ramos, A.E.; Alcover, C.; Evanno, L.; Maciuk, A.; Litaudon, M.; Duplais, C.; Bernadat, G.; Gallard, J.-F.; Jullian, J.-C.; Mouray, E.; Grellier, P.; Loiseau, P.M.; Pomel, S.; Poupon, E.; Champy, P.; Beniddir, M.A. |
| Title |
Revisiting Previously Investigated Plants: A Molecular Networking-Based Study of Geissospermum laeve |
Type |
Journal Article |
| Year |
2017 |
Publication |
Journal of Natural Products |
Abbreviated Journal |
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| Volume |
80 |
Issue |
4 |
Pages |
1007-1014 |
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Three new monoterpene indole alkaloids (1-3) have been isolated from the bark of Geissospermum laeve, together with the known alkaloids (−)-leuconolam (4), geissolosimine (5), and geissospermine (6). The structures of 1-3 were elucidated by analysis of their HRMS and NMR spectroscopic data. The absolute configuration of geissolaevine (1) was deduced from the comparison of experimental and theoretically calculated ECD spectra. The isolation workflow was guided by a molecular networking-based dereplication strategy using an in-house database of monoterpene indole alkaloids. In addition, five known compounds previously undescribed in the Geissospermum genus were dereplicated from the G. laeve alkaloid extract network and were assigned with various levels of identification confidence. The antiparasitic activities against Plasmodium falciparum and Leishmania donovani as well as the cytotoxic activity against the MRC-5 cell line were determined for compounds 1-5. © 2017 The American Chemical Society and American Society of Pharmacognosy. |
| Address |
Équipe Chimiothérapie Antiparasitaire BioCIS, Univ. Paris-Sud, CNRS, Université Paris-Saclay, 5 Rue J.-B. Clément, Châtenay-Malabry, France |
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Export Date: 18 May 2017 |
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no |
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EcoFoG @ webmaster @ |
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752 |
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Niamké, F.B.; Amusant, N.; Kadio, A.A.; Thevenon, M.-F.; Nourissier, S.; Adima, A.A.; Jay-Allemand, C.; Chaix, G. |
| Title |
Rapid prediction of phenolic compounds as chemical markers for the natural durability of teak (Tectona grandis Linn f.) heartwood by near infrared spectroscopy |
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Journal Article |
| Year |
2014 |
Publication |
Journal of Near Infrared Spectroscopy |
Abbreviated Journal |
J. Near Infrared Spectrosc. |
| Volume |
22 |
Issue |
1 |
Pages |
35-43 |
| Keywords |
Heartwood; Hplc; Natural durability; NIR spectroscopy; Phenolic; Prediction; Quinone; Tectona grandis |
| Abstract |
Near infrared (NIR) spectroscopy provides rapid and non-destructive analysis of wood properties and composition. In this study, we aimed to use NIR measurement for the prediction of teak phenolic compounds, which are chemical markers for natural durability of wood. Twenty-seven teak trees from two geographical zones (Malaysia and Ivory Coast) were used. On ground heartwood samples, the content of total phenolics and individual quinones (tectoquinone, 2-(hydroxymethyl)anthraquinone, 2-anthraquinone carboxylic acid, 1,4-naphthoquinoneand 4c,5c-dihydroxy-epiisocatalponol) were determined using high performance liquid chromatography (HPLC). Partial least squares (PLS) regression with NIR spectra on the same samples and phenolic data was used to build NIR models for phenolic contents. The PLS models for the total predicted phenolics and three quinone contents (tectoquinone, 2-(hydroxymethyl) anthraquinone, and 4¢,5¢-dihydroxy-epiisocatalponol) showed a good ratio of performance to deviation (RPD ≥ 2.5), strong coefficients of determination (r2 ≥ 0.8) and the prediction errors were consistent with the reference method. These results demonstrate that NIR spectroscopy can be reliable for the evaluation of total phenolics and individual quinones in teak heartwood wood meal. NIR spectroscopy is a promising technique for rapidly providing information on the quinone contents in teak wood and indirectly for knowing its natural durability. This finding leads to a precise, non-destructive tool for teak wood quality evaluation. © IM Publications LLP 2014. |
| Address |
CIRAD-UMR AGAP, Department of Forest Science, ESALQ / University of São Paulo, Avenue Pàdua Dias 11, CEP 13418-900, Piracicaba-SP, Brazil |
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N I R Publications |
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17516552 (Issn) |
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Export Date: 20 May 2014; Source: Scopus; Language of Original Document: English; Correspondence Address: Niamké, F.B.; LAPISEN, Groupe de Recherche en Chimie des Eaux et des Substances Naturelles, Institut National Polytechnique Houphouët Boigny, BP 1313, Yamoussoukro, Cote d'Ivoire |
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no |
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EcoFoG @ webmaster @ |
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542 |
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Amusant, N.; Beauchene, J.; Digeon, A.; Chaix, G. |
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Essential oil yield in rosewood (Aniba rosaeodora Ducke): Initial application of rapid prediction by near infrared spectroscopy based on wood spectra |
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Journal Article |
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2016 |
Publication |
Journal of Near Infrared Spectroscopy |
Abbreviated Journal |
Journal of Near Infrared Spectroscopy |
| Volume |
24 |
Issue |
6 |
Pages |
507-515 |
| Keywords |
Aniba rosaeodora; Calibration; Essential oil yield; Nir; Pls; Rosewood |
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Rosewood (Aniba rosaeodora) essential oil is a valuable ingredient that has long been used in the perfume and cosmetic industries. The main rosewood timber quality parameters are its essential oil yield and quality. A hydrodistillation method has been developed for yield determination, but it is time consuming. Here we tested the applicability of near infrared (NIR) spectroscopy for determining essential oil yield directly from wood powder. Essential oil from 139 wood powders was extracted via hydrodistillation. The measurements were based on the ratio between the extracted essential oil mass and the oven-dried wood mass and were correlated with the wood powder NIR spectra. The calibration model statistical findings demonstrated that NIR could be a fast and feasible alternative method for selecting trees with a high essential oil yield potential. NIR-based predictions obtained in an independent validation set indicated a high correlation (r2e = 0.92) with laboratory essential oil yield measurements. This NIR model could help wood managers in selecting trees with a high essential oil yield potential and in developing sustainable rosewood management strategies. © IM Publications LLP 2016. All rights reserved. |
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ESALQ-USP, Piracicaba, Brazil |
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Cited By :1; Export Date: 17 January 2017 |
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EcoFoG @ webmaster @ |
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707 |
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Stien, D.; Gastaldi, S. |
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Design of polyaromatic hydrocarbon-supported tin reagents: A new family of tin reagents easily removable from reaction mixtures |
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Journal Article |
| Year |
2004 |
Publication |
Journal of Organic Chemistry |
Abbreviated Journal |
J. Org. Chem. |
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69 |
Issue |
13 |
Pages |
4464-4470 |
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We report in this paper the preparation and use of stannanes 11, 12a, and 12b, compounds whose 3-pyrenylpropyl side chain affinity for activated carbon simplifies tin removal and product isolation. Our pyrene-supported reagents can be used for radical reductions and cyclizations (11), radical and cationic allylations (12a), and Stille couplings (12b) in much the same way as tributyltin derivatives. |
| Address |
CNRS UPS 2561, Cayenne 97300, French Guiana, Email: didier.stien@guyane.cnrs.fr |
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AMER CHEMICAL SOC |
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0022-3263 |
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ISI:000222187200022 |
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EcoFoG @ eric.marcon @ |
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263 |
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Boulogne, I.; Constantino, R.; Amusant, N.; Falkowski, M.; Rodrigues, A.M.S.; Houel, E. |
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Ecology of termites from the genus Nasutitermes (Termitidae: Nasutitermitinae) and potential for science-based development of sustainable pest management programs |
Type |
Journal Article |
| Year |
2017 |
Publication |
Journal of Pest Science |
Abbreviated Journal |
Journal of Pest Science |
| Volume |
90 |
Issue |
1 |
Pages |
19-37 |
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Antimicrobial and insecticidal botanical extracts; Ipm; Nasutitermes corniger; Sustainable management; Taxonomic history; Termitidae |
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The genus Nasutitermes is among the most abundant wood-feeding Termitidae and an extremely diverse and heterogeneous group in terms of its biogeography and morphology. Despite the major role of several Nasutitermes species as structural pests, the phylogenetic status of this genus is still unclear, along with a confused taxonomy and species identification remaining difficult. The first aim of this review was thus to gather and discuss studies concerning the taxonomic status of the genus Nasutitermes in order to clarify this crucial point. Then, our goal was to gain new insights into the management of N. corniger, considered to be the most economically detrimental pest of this genus in South America and a Nasutitermes model species, while filtering available information concerning its biology through the prism of termite control, as well as critically examine the existing methods. We indeed strongly believe that increasing our knowledge of this species’ biological strategies is the key to progress in the challenging question of their sustainable management. © 2016, Springer-Verlag Berlin Heidelberg. |
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Laboratoire de Biodiversité et Biotechnologies Microbiennes (LBBM), Observatoire Océanologique, Sorbonne Universités, Université Pierre et Marie Curie, CNRS, Banyuls/Mer, France |
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Export Date: 17 February 2017 |
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EcoFoG @ webmaster @ |
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732 |
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Talaga, S.; Dejean, A.; Azémar, F.; Dumont, Y.; Leroy, C. |
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Impacts of biotic and abiotic parameters on immature populations of Aedes aegypti |
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Journal Article |
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2020 |
Publication |
Journal of Pest Science |
Abbreviated Journal |
J. Pest Sci. |
| Volume |
93 |
Issue |
3 |
Pages |
941-952 |
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Biocontrol agents; Competition; Ecosystem services; Mosquito control; Mosquito management; Predation; abiotic factor; biotic factor; competitive displacement; disease vector; maturation; mosquito; pest control; Aedes aegypti; Hexapoda; Zika virus |
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In recent centuries, the mosquito Aedes aegypti has spread into most urban areas throughout the tropics. This species is considered the main vector of the chikungunya, dengue, yellow fever and Zika viruses and causes major public health issues. The aim of this study is to investigate the relative influence of biotic and abiotic parameters on immature populations of Ae. aegypti. During a one-year-long field experiment, we monitored 108 macroinvertebrate aquatic communities inhabiting four types of water containers across three different urbanized sites in a Neotropical city. A multimodel inference approach revealed that, in addition to abiotic parameters, biotic interactions with aquatic organisms had an important influence on the abundance of Ae. aegypti and that the urbanized site considered influences the outcomes of the interactions. Controphic species other than mosquitoes aided Ae. aegypti development, suggesting a mechanism of facilitation through a chain of processes. However, the abundance of Ae. aegypti was lowered by competition with native mosquito species in the slightly urbanized area and by predation in more urbanized areas. Competitive displacement and reduction, as well as predation by native aquatic organisms, can be considered a form of ecosystem service. The conservation and/or augmentation of natural enemies should improve the short- and long-term success of incompatible and/or sterile insect techniques, thus opening up perspectives for the future of mosquito management. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature. |
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University of Pretoria, Department of Mathematics and Applied Mathematics, Pretoria, South Africa |
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Springer |
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16124758 (Issn) |
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EcoFoG @ webmaster @ |
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962 |
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