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	Author	Dejean, Alain
	Title	Ant-Plant Interactions: Impacts of Humans on Terrestrial Ecosystems edited by Paulo S. Oliveira and Suzanne Koptur			Type	Journal Article
	Year	2018	Publication	The Quarterly Review Of Biology	Abbreviated Journal
	Volume	93	Issue	2	Pages	138-139
	Keywords
	Abstract	Revue de l'ouvrage : Edited by Paulo S. Oliveira and Suzanne Koptur. Cambridge and New York: Cambridge University Press. $84.99. xix + 431 p. + 8 pl.; ill.; index. ISBN: 978- 1-107-15975-4. 2017.
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	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
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	Series Volume		Series Issue		Edition
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	Notes				Approved	no
	Call Number	EcoFoG @ webmaster @			Serial	316
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	Author	Houël, Emeline; Stien, Didier; Bourdy, Geneviève; Deharo, Eric
	Title	Chapter 161: Quassinoids: anticancer and antimalarial activities			Type	Book Chapter
	Year	2013	Publication	Handbook of Natural Products	Abbreviated Journal
	Volume		Issue		Pages	3775 - 3802
	Keywords
	Abstract	Quassinoids were initially isolated as bitter principles of plants of the Simaroubaceae family. These natural products are formed by oxidative degradation of triterpene derivatives. Since the 1970s, these molecules have attracted attention because of their promising biological activities, especially in the context of research regarding active anticancer and antimalarial principles. In this chapter, the structural diversity of quassinoids and their botanical and geographical occurrence are described, combining a historical perspective from the literature references regarding these two major biological activities and focusing on the results obtained in vivo with the most promising compounds; in vitro studies are less relevant and have already been extensively reviewed in the literature. The biological activities with respect to the uses of the corresponding Simaroubaceae in traditional medicine are also analyzed.
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	Corporate Author				Thesis
	Publisher	Springer-Verlag	Place of Publication	Berlin Heidelberg	Editor	Ramawat, Kishan Gopal; Merillon, Jean-Michel
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	EcoFoG @ webmaster @			Serial	164
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	Author	Houël, E.; Fleury, M.; Jullian, V.; Vonthron-Sénécheau, C.; Nardella, F.; Villa, P.; Odonne, G.; Eparvier, V.; Deharo, E.; Stien, D.
	Title	TakamalaImë (Psidium acutangulum Mart ex. DC): Understanding the use of an antimalarial traditional remedy from French Guiana			Type	Journal Article
	Year	2014	Publication	Planta Medica	Abbreviated Journal	Planta Med
	Volume	80	Issue	10	Pages	Pd90
	Keywords
	Abstract	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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	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0032-0943	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	EcoFoG @ webmaster @			Serial	233
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	Author	Rodrigues, A.; Theodoro, P.; Basset, C.; Espindola, L.; Stien, D.
	Title	Bio-inspiration in the discovery of active natural products: an example with the search of antifungal agents inspired from long-lasting woods			Type	Conference Article
	Year	2010	Publication	Planta Medica	Abbreviated Journal	Planta Med.
	Volume	76	Issue	12	Pages	1293
	Keywords
	Abstract	Plant natural products have been perfected through evolution with respect to their specific biological roles (defense, elicitor, and so on) and are, therefore, an excellent starting point in the search for new biologically active chemicals. Hence, despite the progressive abandonment of the exploration of naturally sourced bioactive substances by the pharmaceutical industry, more than half of the drugs approved in the United States between 2005 and 2007 are natural products or natural product-derived drugs, five of which constituted the first members of new drug classes [1]. Clearly, chemical research into natural substances still has an important role to play in improving quality of life, and can play an important role by inventing innovative strategies to discover new bioactive compounds [1,2]. In the present work, we demonstrated that a bio-inspired approach for the identification of novel bioactive natural products represents a promising biotechnological tool for the development of new drugs. We have studied how natural defenses within decay-resistant wood can generate a large number of positive hits in the search for antimycotic agents. In addition, it was found from bioguided fractionation that ethyl acetate extracts of Sextonia rubra wood contain a relatively large proportion of antifungal metabolites rubrenolide (1) and rubrynolide (2), 1 being slightly more active than 2. The therapeutic potential of the above compounds will be discussed through the evaluation of their antifungal activities against 16 pathogenic fungi strains and their cytotoxicities towards KB cells.
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	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
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	Area		Expedition		Conference	58th International Congress and Annual Meeting of the Society for Medicinal Plant and Natural Product Research, Berlin, Germany, 29th August - 2nd September 2010
	Notes				Approved	no
	Call Number	EcoFoG @ webmaster @			Serial	181
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	Author	Basset, C.; Stien, D.; Espindola, S.L.
	Title	Research of antifungal compounds from the Amazonian biomass by a bio-inspired approach			Type	Conference Article
	Year	2010	Publication	Planta Medica	Abbreviated Journal	Planta Med.
	Volume	76	Issue	12	Pages	1172
	Keywords
	Abstract	Our research aims at understanding the chemical resistance mechanisms of durable woods against fungi. Our ultimate goal is to isolate and identify antifungal compounds from these woods that could be used for the treatment of human fungal diseases. We therefore screened highly durable Amazonian wood selected from technical databases [1] and demonstrated that bioactive secondary metabolites responsible of the natural durability of the woods [2] can also be used to treat mycoses. This screening has given a very high ...
	Address	Basset, C.] UAG, UMR ECOFOG, Cayenne 97337, French Guiana
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0032-0943	ISBN		Medium
	Area		Expedition		Conference	58th International Congress and Annual Meeting of the Society for Medicinal Plant and Natural Product Research, Berlin, Germany, 29th August - 2nd September 2010
	Notes	ISI:000282066500035			Approved	no
	Call Number	EcoFoG @ webmaster @			Serial	183
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	Author	Brechet, L.
	Title	Composition chimique et resorption foliaire chez 21 espèces d'arbres tropicaux			Type	Thesis
	Year	2004	Publication		Abbreviated Journal
	Volume		Issue		Pages	31
	Keywords	Foret Tropicale Humide; Arbres; Composition Chimique Des Feuilles; Efficience De Resorption Des Nutriments; Qualite De La Litiere
	Abstract	Nous avons analysé la composition chimique de feuilles matures et sénescentes de 21 espèces d'arbres de forêt tropicale humide. Ces arbres ont été plantés il y a 20 ans, sur un sol unifonl1e pour tous, sous forme de jeunes plants. Cette plantation est organisée sous fonne de placeaux monospécifïques et est située près de Kourou, en Guyane française. Les mesures de concentration d'azote, de phosphore, de carbone et des polyphénols ont été réalisées et ont permis de calculer le rapport C/N et la résorption des nutriments. Les compositions chimiques varient radicalement entre les espèces à la fois pour les feuilles matures et sénescentes: dans les feuilles matures les concentration en N et P varient de 1,03% à 2,69% et de 0,037% à 0,115%, respectivement. La concentration d'N dans les feuilles sénescentes varie de 0,72% à 2,03% et pour le P de 0,013% à 0.074%. La vitesse de croissance est positivement corrélée avec la concentration d'N dans les feuilles. La résorption est le phénomène suivant lequel les plantes ré-absorbent les nutriments des feuilles avant la période d'abscission pour les re-distribuer à travers ses tissus. L'efficience de résorption varie fortement en fonction des espèces et est plus élevée pour le P que pour I"N. La résorption de l'N varie de -9,84% à 57,22% (moyenne=30,7%) el celle du P varie de -15,75% il 79,56% (moyenne~47,64%). Une analyse par corrélation montre que les résorptions de N et P sont significativement et positivement corrélés. Il y a aussi une corrélation significative et positive entre l'efficience de résorption et i) les concentrations en nutriment dans les feuilles vel1es et ii) le coflt de construction des feuilles et la vitesse de croissance. Parmi les espèces, une fone relation positive est trouvée entre le C/N de la litière et la résorption de l'N, suggérant que celle-ci est un élément déteminant de la qualité de la litière. Une fl)rte résorption entraîne une faible qualité de litière el par conséquent une mauvaise décomposition. La résorption et la décomposition. sont liés dans le recyclage des nutriments dans les écosystèmes. et sont négativement corrélés. Il semble que la connaissance de la résorption seule ou de la décomposition seule peut fausser la compréhension du fonctionnement de l'écosystème ou des espèces.
	Address
	Corporate Author				Thesis	Diploma thesis
	Publisher	Université de Poitiers	Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor	Roy, J.; Hattenschwiller, S.	Series Title		Abbreviated Series Title	U.F.R. Sciences Fondamentales et Appliquées
	Series Volume		Series Issue		Edition
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	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	EcoFoG @ webmaster @ 169			Serial	48
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	Author	Marcon, Eric
	Title	Mesurer la Biodiversité et la Structuration Spatiale			Type	Thesis
	Year	2016	Publication		Abbreviated Journal
	Volume		Issue		Pages	321
	Keywords	Statisitques spatiales; Processus ponctuels; Biodiversité;Entropie
	Abstract	Mes travaux de recherche portent sur la caractérisation de l’hétérogénéité, précisément des structures spatiales et de la diversité. J’ai développé de nouvelles mesures de la structure spatiale appliquées principalement en économie géographique et des mesures de diversité appliquées principalement à la biodiversité des arbres. Le fil directeur de ces travaux méthodologiques est de construire des mesures correspondant à une réalité physique, facilement compréhensible, pouvant être utilisées ensuite pour comprendre sans ambiguïté les processus économiques ou écologiques concernés. Mon projet de recherche à moyen terme consiste à combiner les deux approches pour caractériser la diversité explicitement dans l’espace et dans le temps, et à étendre mes méthodes à d’autres objets (diversité microbienne par exemple) plus complexes. Au-delà de ces travaux méthodologiques, mon objectif à plus long terme est d’aller vers la modélisation des processus générant les patrons de diversité.
	Address
	Corporate Author				Thesis	Habilitation thesis
	Publisher	Université de Guyane	Place of Publication	Kourou - Guyane française	Editor
	Language	Francais	Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	EcoFoG @ webmaster @			Serial	262
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	Author	Fu, T. ; Touboul, D. ; Della-Negra, S. ; Houël, E. ; Amusant, N. ; Duplais, C. ; Brunelle, A.
	Title	Localization od bioactive metabolites in durable ? Tropical tree Sextonia rubra (Lauracaea) with argon and bismuth cluster dual beam depth profiliing and imaging			Type	Conference Article
	Year	2016	Publication	Imaging mass spectrometry conference – Ustron – Pologne – Octobre 2016	Abbreviated Journal
	Volume		Issue		Pages
	Keywords
	Abstract	Many tropical tree species generate natural decay resistance by producing bioactive metabolites. Among them, Sextonia rubra (Lauraceae) is a widely exploited species for construction in French Guiana. Rubrynolide and rubrenolide, which are secondary metabolites isolated from the stem wood of S. rubra, exhibit potent antifungal and termiticidal activities that result in the exceptional durability of the heartwood. Although the structure and total synthesis of these two biologically active compounds have been well described in literature, little is known about their cellular localization or biosynthesis process in living trees. Time-of-flight secondary ion mass spectrometry (TOF-SIMS) has been well known for its high lateral resolution imaging with a typical beam size of 0.4-2 µm, thus sufficient to image the wood surface at subcellular level. Wood surfaces of sapwood, transition zone and heartwood from living trees of S. rubra were prepared with ultramicrotome using diamond knife. Each surface was mapped by Bi3+ cluster TOF-SIMS with high lateral resolution (~ 0.4 µm) which was achieved by employing burst alignment primary ion focusing mode with an extraction delay of the secondary ions to improve mass resolution. 3D imaging of a multi-structure wood sample was performed using dual beam depth profiling method, with 25 keV Bi3+ and 10 keV Ar1000+ as analysis and sputter beam, respectively. To examine the effect of life-history traits on the production of bioactive metabolites, the corresponding counterparts from a tree which had suffered stress during growth were investigated as well.
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	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
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	Notes				Approved	no
	Call Number	EcoFoG @ carole.legrand @			Serial	302
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	Author	Nirma, C.; Rodrigues, A.; Basset, C.; Stien, D.; Eparvier, V.
	Title	Isoflavonoids with insecticide and larvicide activities from Muellera frutescens Standl			Type	Conference Article
	Year	2010	Publication	Planta Medica	Abbreviated Journal	Planta Med.
	Volume	76	Issue	12	Pages	1197-1198
	Keywords
	Abstract	Many plants of the Fabaceae family, are used as fish poisoning and insecticides [1,2]. The genus Muellera in this family is represented by only seven species of climbers and trees and is distributed over south and central America. In 1984, Geesink proposed to consider Muellera as Lonchocarpus synonymous [3]. The Lonchocarpus genera is well known in French Guiana because of its traditional utilization as a fish poisoning [4]. However, one study only reported ethnobotanical use of M. frutescens as an ichtyotoxic plant. Furthermore, no ethnopharmacological use or biological activity data was ever reported in the literature for this plant. Many chemical studies dealing with Lonchocarpus genera have been published [5,6,7]. Phytochemical investigation of barks, stems and rarely leaves described isolation of active isoflavonoids named rotenoids. This study aims at conducting a phytochemical survey of Muellera frutescens in order to evaluate whether or not Muellera is closely related to Lonchocarpus and eventually isolate new bioactive secondary metabolites. Three different extracts (hexane, ethyl acetate and methanol) of bark, roots and leaves were prepared and tested on various biological assays. We discovered insecticide and larvicide activities for all extracts, and none of them exhibited cytotoxicity on human cells. The bioguided fractionation of the most active extract (bark hexane extract) allowed us to isolate eight isoflavonoids, the structures of which were elucidated by spectroscopic methods. It was found that Muellera is indeed closely related to Lonchocarpus, therefore corroborating Geesink's proposal.
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	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
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	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	EcoFoG @ webmaster @			Serial	178
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	Author	Marcon, Eric
	Title	Statistiques spatiales avec applications à l’écologie et à l’économie			Type	Thesis
	Year	2010	Publication		Abbreviated Journal
	Volume		Issue		Pages	297
	Keywords
	Abstract	Les statistiques spatiales sont pour les écologues un ensemble d'outils permettant de caractériser la structure d'un semis de points, par exemple une carte représentant des emplacements des arbres dans une parcelle de forêt. Cette structure est définie implicitement comme un écart à semis complètement aléatoire, résultat d'un processus de Poisson. L'hétérogénéité du processus ponctuel dont le semis de points est une réalisation et la non-indépendance des points en sont les causes indiscernables, ce qui amène généralement à supposer l'intensité du processus connu et nommer « concentration spatiale » ou « agrégation » (la régularité spatiale est possible, mais rare en pratique) la non-indépendance. Une revue de la littérature des processus ponctuels et des mesures de structures spatiales est fournie pour clarifier les concepts et les choix. L'objectif de ce travail de thèse était de produire des améliorations méthodologiques. Ses résultats principaux sont : - L'établissement d'un test pour la principale statistique utilisée, la fonction K de Ripley, permettant de s'affranchir de la méthode de Monte-Carlo utilisée dans la littérature pour rejeter l'hypothèse nulle d'un processus complètement aléatoire. - L'extension de K aux processus hétérogènes, dans le cadre d'une typologie claire des statistiques (absolues, relatives, topographiques). Lorsque la position exacte des objets n'est pas connue, mais que des effectifs par zone sont disponibles (par exemple des nombres d'arbres par parcelle), la théorie de l'information est utilisée pour définir un cadre général permettant de caractériser la structure spatiale (des espèces dans les parcelles) et la diversité (des parcelles, en termes d'espèces) comme deux aspects d'une même mesure d'inégalité. Ce cadre est appliqué à l'indice de biodiversité de Shannon pour définir clairement la mesure de diversité bêta, son calcul direct indépendamment de la différence entre diversités gamma et alpha, et fournir un test statistique de non nullité. La voie est ouverte pour l'application à d'autres mesures de diversité et de structure spatiale. En conclusion, il semble clair que ces outils de caractérisation sont un premier pas pour traiter les questions écologiques, leur développement étant toujours du domaine de la recherche. Ils sont cependant très insuffisants pour répondre à des questions liées aux processus écologiques, assez éloignés des processus ponctuels qui ignorent l'aspect temporel de l'installation des objets.
	Address
	Corporate Author				Thesis	Ph.D. thesis
	Publisher	AgroParisTech	Place of Publication	Kourou	Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN		ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	no
	Call Number	EcoFoG @ webmaster @			Serial	13
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