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Eparvier, V.; Sorres, J.; Rodrigues, A.M.S.; Houël, E.; Sorgenfrei, O.; Ralli, M.; Stien, D. |
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Title |
Bioprospection in French Guiana for the discovery of potential agrochemical and cosmetic agents |
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Journal Article |
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2014 |
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Planta Medica |
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Planta Med |
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80 |
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10 |
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Pd79 |
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The present work is part of the Agrocos EUFP7 project and aimed at identifying new promising plant species exhibiting agrochemical properties or cosmetic interest. French Guiana being one of the megadiverse area of the globe considering plant biodiversity, 300 plant parts from 64 families were collected for the project. Among the 600 extracts evaluated as antifungals against phytopathogens, insecticides against plant pests and herbicides, 10% revealed an interesting activity. 7 of these extracts, mostly from the Leguminosae family, are currently under investigation for isolation and evaluation of pure compounds. Concerning cosmetic activity, 8 extracts from 5 different families were selected for further study. These results may lead to the development of novel products headed to agrochemical and cosmetic industry. |
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0032-0943 |
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EcoFoG @ webmaster @ |
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231 |
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Houël, E.; Fleury, M.; Jullian, V.; Vonthron-Sénécheau, C.; Nardella, F.; Villa, P.; Odonne, G.; Eparvier, V.; Deharo, E.; Stien, D. |
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Title |
TakamalaImë (Psidium acutangulum Mart ex. DC): Understanding the use of an antimalarial traditional remedy from French Guiana |
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Journal Article |
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Year |
2014 |
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Planta Medica |
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Planta Med |
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80 |
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10 |
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Pd90 |
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Psidium acutangulum Mart. ex DC is used exclusively by the Wayana Amerindians in French Guiana, more particularly for the treatment of malaria. To understand this specific use, we embarked upon evaluating the antimalarial and anti-inflammatory activities of this traditional remedy as prepared by the Amerindian users. The decoction exerted good antiplasmodial activity in vitro (IC50 4 µg/ml on P. falciparum FcB1) and in vivo (39.7% inhibition of P. berghei NK65 in the murine model at 2 × 150 µl/day), as well as a strong anti-inflammatory effect in vitro regarding IL-1β, IL-6 and IL-8. Fractionation of the ethyl acetate extract (IC50 < 1 µg/ml) led to the isolation of six pure compounds, two of them, guaijaverine and the new compound wayanine, being moderately active against P. falciparum FcB1 in vitro (IC50 5 – 7 µg/ml). Along with the absence of cytotoxicity of the decoction and pure compounds, these results support the traditional use of this plant. |
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0032-0943 |
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EcoFoG @ webmaster @ |
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233 |
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Roy, Mélanie; Schimann, Heidy; Buée, Marc |
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Title |
Relations intimes entre plantes et champignons du sol |
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2015 |
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Ecologie tropicale: de l’ombre à la lumière |
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Editions du Cherche Midi-CNRS |
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Paris |
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Forget, Pierre-Michel; Hossaërt-McKey, Martine; Poncy, Odile |
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EcoFoG @ webmaster @ |
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234 |
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Leponce, Maurice; Delabie, Jacques H.C.; Klimes, Petr; Delsinne, Thibaut; Jacquemin, Justine; Dejean, Alain |
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Ant mosaics in primary rainforests across four continents |
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2014 |
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Proceedings of the 17th Congress of the International Union for the Study of Social Insects (IUSSI) |
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38 |
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OR199 |
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101 |
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17th Congress of the International Union for the Study of Social Insects (IUSSI), Cairns, Australia, 13 - 18 July 2014. |
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EcoFoG @ webmaster @ |
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235 |
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Touchard, Axel; Dejean, Alain; Koh, Jennifer; Nicholson, Graham; Escoubas, Pierre; Orivel, Jerome |
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Unraveling the unexplored biochemical complexity of ant venoms |
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2014 |
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Proceedings of the 17th Congress of the International Union for the Study of Social Insects (IUSSI) |
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36 |
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OR241 |
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122 |
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17th Congress of the International Union for the Study of Social Insects (IUSSI), Cairns, Australia, 13 - 18 July 2014. |
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EcoFoG @ webmaster @ |
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236 |
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Salhi, L. ; Nait Rabah, O. ; Deyrat, C. ; Roos, C. |
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Title |
Numerical modeling of the screw pile behavior under tensile loading in cohesionless soil |
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2014 |
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XV Danube – European conference on geotechnical engineering |
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Paper n° 190 |
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1033-1038 |
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Brandl, H ; Adam, D |
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9-11 September - Vienna - Austria |
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EcoFoG @ carole.legrand @ |
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237 |
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Salhi, Lakhdar |
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Contribution à l'étude des comportements mécaniques et à la corrosion d'un système de fondation de type pieu vissé dans un sol mou en environnement tropical humide. |
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2014 |
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223 |
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Ph.D. thesis |
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Université Antilles Guyane |
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Cayenne - Guyane française |
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Roos, Christophe |
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EcoFoG @ carole.legrand @ |
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239 |
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Author |
Suedile, Fabienne |
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Extraction, caractérisation et étude électrochimique de molécules actives issues de la forêt amazonienne pour la protection du zinc contre la corrosion. |
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2014 |
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144 |
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Ph.D. thesis |
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Université Antilles Guyane |
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Cayenne - Guyane française |
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Roos, Christophe |
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EcoFoG @ carole.legrand @ |
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240 |
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Author |
Nicolle, Sandra |
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Les espaces naturels protégés en forêt amazonienne. Des doctrines de gestion aux dispositifs : quelle efficacité pour la proctection de l'environnement ? |
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2014 |
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687 |
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Ph.D. thesis |
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Université Antilles Guyane |
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Cayenne - Guyane française |
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Grenand, Françoise ; Leroy, Maya |
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EcoFoG @ carole.legrand @ |
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241 |
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Author |
Niamké, B. F.; Amusant, N. |
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Déterminants biochimiques de la durabilité naturelle du bois de teck Recherche des composés phénoliques impliqués dans la durabilité naturelle du teck |
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Book Whole |
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2014 |
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236 |
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La durabilité du bois est une propriété très importante pour son usage futur. Chez le teck, cette propriété peut varier selon le génotype et les facteurs environnementaux mais aussi en fonction de la composition chimique du bois. Le présent document s’est attaché à rechercher les déterminants biochimiques de la durabilité naturelle chez le teck. Il ressort de cette étude que les formes osidiques stockées dans l’aubier sont transformées en extractibles de nature quinonique. Ces mécanismes de transformation pourraient indiquer le niveau de durabilité naturelle des espèces. Ainsi, les corrélations établies entre la durabilité naturelle et les teneurs en composés phénoliques ont permis d’identifier et de caractériser quelques traits de cette propriété. En outre, l’activité fongicide de ces composés phénoliques a été déterminée afin de s’assurer de leur implication dans la propriété de résistance du bois de teck. Ces nouvelles données contribueront à l’amélioration de la qualité du bois qui par ailleurs assure la pérennité des arbres. |
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Edition Universitaire Européenne |
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3841735770 |
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EcoFoG @ webmaster @ |
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242 |
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