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Author  |
Vanbellingen, Q; ; Bich, C. ; Amusant, N. ; Touboul, D. ; Sien, D. ; Brunelle, A. |
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Title |
Study of wood metabolites by TOF-SIMS imaging. |
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Conference Article |
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2014 |
Publication |
SIMS Europe |
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p.109 |
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Munster - Germany |
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9th European workshop on secondary ion spectroscopy - Final program and book of abstracts - 7 August 2014 |
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EcoFoG @ carole.legrand @ |
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244 |
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Author |
Tritsch, Isabelle |
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Title |
Dynamiques territoriales et revendications identitaires des Amérindiens wayãpi et teko de la commune de Camopi (Guyane française). |
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2013 |
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438 |
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Ph.D. thesis |
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Université des Antilles et de la Guyane |
Place of Publication |
Cayenne - Guyane française |
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Thibaut, B. |
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EcoFoG @ carole.legrand @ |
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207 |
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Author |
Trébuchon, J.F. |
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Title |
Le bouclier oriental guyanais, cartographie des forêts tropicales humides à l’aide d’images SPOT4-VEGETATION et LANDSAT 7 ETM+ – Une méthode de validation |
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2003 |
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67 |
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Bouclier Oriental Guyanais Guyane Francaise Amazonie Amerique Du Sud Foret Foret Tropicale Humide Vegetation Validation Classification Teledetection Basse Resolution Haute Resolution Multi Echelle Spot4 Vegetation Landsat 7 Emt+ |
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Master's thesis |
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Université Pierre et Marie Curie |
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Toulouse |
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Gond, V. |
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EcoFoG @ webmaster @ 236 |
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44 |
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Author |
Traissac, S. |
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Title |
Dynamique spatiale de Vouacapoua americana (Aublet), arbre de forêt tropicale humide à répartition agrégée. |
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2003 |
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207 |
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Keywords |
Foret Tropicale Humide; Dynamique Des Populations; Structure Spatiale; Analyse Spatiale; Besoin De Lumiere; Ombre; Dissemination Des Graines; Rongeurs; Bois D'Oeuvre; Amerique Du Sud; Guyane Francaise; Vouacapoua Americana; Ripley |
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Ph.D. thesis |
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Université Claude Bernard - Lyon 1 |
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Lyon |
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Pascal, J.P. |
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EcoFoG @ webmaster @ 235 |
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43 |
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Author |
Touré, Seindé ; Falkowski, Michaël ; Dusfour, Isabelle ; Jahn-Oyac, Arnaud ; Odonne, Guillaume ; Stien, Didier ; Houël, Emeline ; Eparvier, Véronique |
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Title |
Ae aegypti larvicidal sesquiterpene alkaloids from Maytenus oblongata Reissek (Celastraceae) |
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Journal Article |
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Year |
2016 |
Publication |
Planta Medica |
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81 |
Issue |
S01 |
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S1-S381 |
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Keywords |
Maytenus oblongata ; Aedes aegypti ; larvicidal ; sesquiterpenes alkaloids |
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Abstract |
Vector-borne diseases account for 17% of the estimated global burden of all infectious diseases [1]. For most of these, vector control remains the sole method to circumvent transmission and eventually epidemics in the absence of vaccine and/or specific arbovirose treatments. Furthermore, the efficacy of existing insecticides is decreasing due to the development of resistances [2, 3]. The situation urges to find novel insecticide or alternative method for controlling mosquito vectors. Taking into account these elements, in a constantly evolving epidemiological and regulatory context, the need to discover alternative, environmentally friendly, and safer biopesticides appears as crucial. Plants are a source of inspiration for new insecticides discovery as coevolution with phytophagous insects promoted the occurrence of a unique chemical diversity devoted to herbivory resistance at least in part [4, 5]. The insecticidal activity of 160 extracts from 87 species collected in French Guiana were evaluated on Ae. aegypti mosquitoes larvae. It was discovered that Maytenus oblongata Reissek (Celastraceae) stem ethyl acetate extract exhibited promising insecticidal properties, i.e., larvicidal and adulticidal activity against Ae. aegypti under laboratory conditions, without ecotoxicity (essay on Chironomus riparius and Daphnia magna) or cytotoxicity (Test on Ae. albopictus C6/36 cells and two human cell lines: KB and MCR5). Four β-dihydroagrofurane sesquiterpene alkaloids (1-4) and one steroid (5) were isolated from this extract. Compounds 2 (1-benzoyl,4-deoxy-alatamine) and 3 (1,2-dibenzoyl,4-deoxy-alatamine) showed LD50 of 7.75 µg/ml (95% confidence interval: 6.46 – 10.00 µg/ml) and 2.38 µg/ml (95% CI: 1.91 – 2.87 µg/ml), respectively, against Ae. aegypti larvae.
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Thieme |
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Germany |
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Anglais |
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EcoFoG @ carole.legrand @ |
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271 |
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Author |
Touchard, Axel; Dejean, Alain; Koh, Jennifer; Nicholson, Graham; Escoubas, Pierre; Orivel, Jerome |
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Title |
Unraveling the unexplored biochemical complexity of ant venoms |
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Conference Article |
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Year |
2014 |
Publication |
Proceedings of the 17th Congress of the International Union for the Study of Social Insects (IUSSI) |
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36 |
Issue |
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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Author |
Tinaut, Alexandra |
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Title |
Génétique écologique et génomique des évènements de divergence chez les complexes d'espèces en forêt tropicale humide |
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2015 |
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153 |
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Connaitre et appréhender les mécanismes de la diversification des espèces est important pour la gestion des écosystèmes, la prévision des impacts des changements climatiques et la compréhension de la biodiversité actuelle et passée. Le but de cette thèse est de comprendre et de déceler les mécanismes génétiques à l’origine de la diversification des espèces en présence de flux de gènes. Cette thèse se focalise sur le modèle biologique Symphonia globulifera, qui compte deux écotypes : le S.globulifera spécialiste de la terra firme et le S.sp1, spécialiste des bas-fonds. Ces deux écotypes montrent une faible différenciation génétique, malgré la présence de deux phénotypes différents. Une première étape a été de mettre en évidence la présence d’une adaptation locale au sein de cette espèce, par le biais d’une expérimentation de jardins de transplantation réciproques, permettant d’expliquer la répartition des écotypes dans leur habitat naturel. Ensuite, dans le but d’identifier les mécanismes sous-jacent à cette adaptation locale, j’ai testé l’hypothèse que la méthylation des gènes pourrait être une marque de l’épigénétique contribuant à la divergence des écotypes, par l’utilisation d’enzyme sensibles à la méthylation dans un protocole de génotypage AFLP. Enfin, un séquençage haut-débit du transcriptome des écotypes en jardins de transplantation réciproques m’a permis de mettre en évidence une expression différentielle des gènes entre les écotypes, qui pourrait expliquer les différences phénotypiques observées entre les écotypes malgré une faible différentiation génétique. Ces travaux de thèse s’appuie, ainsi, sur des données de traits phénotypiques, de génotypage AFLP et de séquençage à haut débit du transcriptome pour montrer la valeur importante de la régulation des gènes dans la divergence des écotypes adaptés localement, et un faible rôle de la méthylation de l’ADN dans l’établissement cette adaptation locale. |
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Ph.D. thesis |
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Publisher |
Université de Guyane |
Place of Publication |
Cayenne - Guyane française |
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Scotti, Ivan ; Scotti Saintagne, C. |
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EcoFoG @ carole.legrand @ |
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277 |
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Author |
Thoen, D.; Hérault, B. |
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Plant species richness and regenerating potentialities in deciduous forests and spruce plantations of the “Semois ardennaise” floodplain (Belgium; France) |
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2007 |
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Floodplain Protection, Restoration, Management. Why and How? |
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137-146 |
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Forets Alluviales Pessieres Bois De Feuillus Biodiversite Restauration Ecologique |
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Lavoisier |
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Paris (France) |
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Tremolieres, M.; Schnitzler, A.: Silan, P. |
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EcoFoG @ webmaster @ 36 |
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79 |
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Author |
Thoen, D.; Hérault, B. |
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Title |
Flore, groupes socio-écologiques et typologie des mardelles forestières de Lorraine belge et luxembourgeoise |
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Journal Article |
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Year |
2006 |
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Bulletin de la Société des Naturalistes luxembourgeois |
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107 |
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3-25 |
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EcoFoG @ webmaster @ |
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124 |
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Author |
Thibaut, B.; Beauchêne, J. |
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Title |
Links between wood machining phenomena and wood mechanical properties: The case of 0°/90° orthogonal cutting of green wood |
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Conference Article |
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Year |
2004 |
Publication |
Proceedings of the 2nd International Symposium on Wood Machining |
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149-160 |
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Vienna |
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EcoFoG @ webmaster @ 1239 |
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188 |
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