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Registros recuperados: 46
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4-Saponines et sapogénines d'une holothurie Actinopyga flammea IRD
Bhatnagar, S.; Dudouet, B.; Ahond, A.; Poupat, C.; Thoison, O.; Clastres, Alain; Laurent, Dominique; Potier, P..
Tipo: Text Palavras-chave: HOLOTHURIE; SUBSTANCE NATURELLE; EXTRACTION; STRUCTURE CHIMIQUE; IDENTIFICATION; ECHINODERME; SAPONINE; SAPOGENINE.
Ano: 1985 URL: http://www.documentation.ird.fr/hor/fdi:43652
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A novel steroidal glycoside sulfate from the starfishes Protoreaster nodosus and Pentaceraster alveolatus IRD
Riccio, R.; Zollo, F.; Finamore, E.; Minale, L.; Laurent, Dominique; Bargibant, Georges; Pusset, J..
Tipo: Text Palavras-chave: ETOILE DE MER; SUBSTANCE NATURELLE; EXTRACTION; ANALYSE SPECTRALE; IDENTIFICATION; ECHINODERME; SAPONINE; HYDROLISE ENZYMATIQUE.
Ano: 1985 URL: http://www.documentation.ird.fr/hor/fdi:43649
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Alcaloïdes d'une Ascidie néocalédonienne Eudistoma fragum IRD
Debitus, Cécile; Laurent, Dominique; Païs, M..
Tipo: Text Palavras-chave: INVERTEBRE AQUATIQUE; SUBSTANCE NATURELLE; ALCALOIDE; EXTRACTION; ACTIVITE BIOLOGIQUE; SPECTROMETRIE DE MASSE; ACTIVITE ANTIBACTERIENNE.
Ano: 1988 URL: http://www.documentation.ird.fr/hor/fdi:31177
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Alcaloides d'une ascidie néocalédonienne, Eudistoma fragum IRD
Debitus, Cécile; Laurent, Dominique.
Tipo: Text Palavras-chave: SUBSTANCE NATURELLE; DETERMINATION; ALCALOIDE; SPECTROMETRIE UV; RESONNANCE MAGNETIQUE NUCLEAIRE; ACTIVITE ANTIBACTERIENNE.
Ano: 1988 URL: http://www.documentation.ird.fr/hor/fdi:26378
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Alcaloïdes d'une Ascidie néocalédonienne, Eudistoma fragum IRD
Debitus, Cécile; Laurent, Dominique; Païs, M..
Tipo: Text Palavras-chave: INVERTEBRE AQUATIQUE; SUBSTANCE NATURELLE; EXTRACTION; ALCALOIDE; ASCIDIE; ACTIVITE ANTIBACTERIENNE.
Ano: 1988 URL: http://www.documentation.ird.fr/hor/fdi:31708
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Bistramide A, a new toxin from the urochordata Lissoclinum bistratum Sluiter : isolation and preliminary characterization IRD
Gouiffes, D.; Juge, M.; Grimaud, N.; Welin, L.; Sauviat, M.P.; Barbin, Y.; Laurent, Dominique; Roussakis, C.; Henichart, J.P.; Verbist, J.F..
Tipo: Text Palavras-chave: SUBSTANCE NATURELLE; ISOLEMENT; IDENTIFICATION; STRUCTURE; MESURE AU LABORATOIRE; TOXICITE; PROPRIETE MEDICINALE; ALGUE; ASCIDIE; BISTRAMIDE A.
Ano: 1988 URL: http://www.documentation.ird.fr/hor/fdi:30625
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Caulerpin, caulerpicin, Caulerpa scalpelliformis : comparative acute toxicity study IRD
Vidal, J.P.; Laurent, Dominique; Kabore, S.A.; Rechencq, E.; Boucard, M.; Girard, J.P.; Escale, R.; Rossi, J.C..
Tipo: Text Palavras-chave: ALGUE MARINE; TOXICITE; ETUDE COMPARATIVE; EXTRACTION; DOSAGE; COMPOSITION CHIMIQUE; PHARMACOPEE; CAULERPINE; CAULERPICINE.
Ano: 1984 URL: http://www.documentation.ird.fr/hor/fdi:43667
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Comparative ichthyotoxicity of shallow and deep water sponges in New Caledonia IRD
La Barre, S.C.; Laurent, Dominique; Sammarco, P.; Williams, W.T.; Coll, J..
Tipo: Text Palavras-chave: MILIEU RECIFAL; DISTRIBUTION SPATIALE; TEST; EVALUATION; ICHTHYOTOXICITE; EPONGE.
Ano: 1988 URL: http://www.documentation.ird.fr/hor/fdi:26376
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Comparative ichthyotoxicity of shallow and deep water sponges of New Caledonia IRD
La Barre, S.C.; Laurent, Dominique; Sammarco, P.W.; Williams, W.T.; Coll, J.C..
A survey of comparative ichthyotoxicity in marine sponges from shallow and deep water in the Southern province of New Caledonia was conducted. Test fish #Gambusia affinis$ (#Vertebrata, Pisces$) were exposed to aqueous macerates of 30 shallow water and 30 deep-water sponges. Mortality counts and behavioural changes were recorded over twelve hours, readings taken on a geometric time scale. The responses exhibited by the fish ranged from rapid mortality and varying level of distress and narcotization, to effects indistinguishable from controls. Sponges were classified into three major toxicity groups : 100 % lethal, toxic (<100 % lethal with deleterious effects) and non-toxic (indistinguishable from controls). There was little or no overlap in species...
Tipo: Text Palavras-chave: INVERTEBRE AQUATIQUE; TOXICITE; TEST; POISSON; BIOTOPE; EAU SUPERFICIELLE; ETUDE COMPARATIVE; EPONGE; EAU PROFONDE; ICHTHYOTOXICITE.
Ano: 1988 URL: http://www.documentation.ird.fr/hor/fdi:31227
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Comparative ichthyotoxicity of shallow and deep water sponges of New Caledonia IRD
La Barre, S.C.; Laurent, Dominique; Sammarco, P.; Williams, W.T.; Coll, J..
We have conducted a survey of toxicity distribution with depth of common marine sponges of the Southern province of New Caledonia. Test fish #Gambusia affinis$ (#Vertebrata, Pisces$) were exposed to aqueous macerates from 30 shallow water and 30 deep water sponges. Mortality counts and relative toxicites as evidenced through gradual behavioural changes were recorded against a geometric time scale. The responses exhibited by the fish ranged from rapid mortality and varying levels of distress or narcotization to effects undistinguishable from controls. Sponges exhibiting similar behavioural patterns (from 8 computer-defined pattens) were classified into 6 toxicity groups falling into 3 broad categories : 100 % lethal, harmful to toxic, and non-toxic. Eighty...
Tipo: Text Palavras-chave: INVERTEBRE AQUATIQUE; EAU SUPERFICIELLE; TOXICITE; TEST; POISSON; ETUDE COMPARATIVE; BIOTOPE; EPONGE; EAU PROFONDE; ICHTHYOTOXICITE.
Ano: 1988 URL: http://www.documentation.ird.fr/hor/fdi:31229
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Diversité biologique tropicale et innovation thérapeutique : les recherches menées par l'ORSTOM IRD
Moretti, Christian; Debitus, Cécile; Fournet, Alain; Sauvain, Michel; Bourdy, Geneviève; Laurent, Dominique.
Les organismes vivants élaborent des molécules dont la complexité dépasse l'imagination des chimistes. Leurs complexités chimiques vont de pair avec leurs remarquables propriétés biologiques. Les forêts tropicales sont avec les récifs coralliens parmi les biomes les plus riches en nombre d'espèces et constituent un gisement encore peu exploré de nouvelles molécules. En Nouvelle-Calédonie, l'ORSTOM dispose de moyens océanographiques indispensables pour l'étude et la récolte des Organismes Marins vivant dans le plus grand lagon du monde. De nombreux organismes marins ont été étudiés dans le cadre du programme SMIB (ORSTOM-CNRS) à Nouméa. Les extraits de ces organismes sont soumis à un large criblage biologique. Certains des composés isolés, comme la...
Tipo: Text Palavras-chave: TRAITEMENT MEDICAL; SUBSTANCE NATURELLE; DETERMINATION; INVENTAIRE; BIOCHIMIE; BIOTECHNOLOGIE; INNOVATION; PROGRAMME DE RECHERCHE; SUBSTANCE ACTIVE; BIODIVERSITE.
Ano: 1993 URL: http://www.documentation.ird.fr/hor/fdi:39003
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Données sur la ciguatera à Nouméa = Knowledges on ciguatera in Noumea (New Caledonia) IRD
Laurent, Dominique; Joannot, P.; Amade, Philippe; Maesse, P.; Colmet-Daage, B..
Tipo: Text Palavras-chave: SANTE PUBLIQUE; DONNEES STATISTIQUES; INTOXICATION ALIMENTAIRE; CIGUATERA; POISSON VENENEUX.
Ano: 1992 URL: http://www.documentation.ird.fr/hor/fdi:38351
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Equine leucoencephalomalacia in New Caledonia IRD
Domenech, J.; Boccas, Bernard; Pellegrin, Frédéric; Laurent, Dominique; Kohler, Franz; Magnol, J.; Lambert, Christophe.
Tipo: Text Palavras-chave: MYCOTOXINE; MAIS; SYMPTOME; CHEVAL; MALADIE; MEDECINE VETERINAIRE; LEUCOENCEPHALOMALACIE EQUINE.
Ano: 1985 URL: http://www.documentation.ird.fr/hor/fdi:010005668
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Etude biologique et chimique de la faune profonde de Nouvelle Calédonie IRD
Debitus, Cécile; La Barre, Stéphane; Laurent, Dominique; Minale, L.; Païs, M.; Pietra, F.; Richer de Forges, Bertrand; Brun, Luc-Olivier; Carré, J.B.; Duhet, Daniel; Holué, Antoine; Marcillaud, Claude; Patissou, Josiane; Ribes, Olivier.
Tipo: Text Palavras-chave: BENTHOS; SUBSTANCE NATURELLE; EXTRACTION; ANALYSE CHIMIQUE; ACTIVITE BIOLOGIQUE; EPONGE; ECHINODERME; ALCYONAIRE; MADREPORAIRE; CRINOIDE; MOLECULE.
Ano: 1989 URL: http://www.documentation.ird.fr/hor/fdi:39876
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Etude chimiotaxonomique de deux espèces nouvelles de Hazunta (Apocynaceae) IRD
Bui, AM.; Potier, P.; Urréa, M.; Clastres, Alain; Laurent, Dominique; Debray, Maurice.
Tipo: Text Palavras-chave: ALCALOIDE; CHIMIOTAXONOMIE; ESPECE NOUVELLE; HAZUNTA; APOCYNACEAE; ACYLINDOLES.
Ano: 1979 URL: http://www.documentation.ird.fr/hor/fdi:00871
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Etude chimique et pharmacologique des étoiles de mer de Nouvelle-Calédonie IRD
Laurent, Dominique.
Dans le cadre des recherches de substances naturelles marines biologiquement actives en Nouvelle-Calédonie, 23 étoiles de mer ont été récoltées et étudiées sur le plan chimique et pharmacologique. 56 nouvelles molécules dont 27 saponines, 23 stérols polyhydroxylés et 6 stérols sulfatés, ont ainsi été décrites. (Résumé d'auteur)
Tipo: Text Palavras-chave: LAGON; SUBSTANCE NATURELLE.
Ano: 1987 URL: http://www.documentation.ird.fr/hor/fdi:24834
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Etude de la fusariose du maïs à Fusarium moniliforme en Nouvelle-Calédonie et de la pathologie équine associée : la leucoencéphalomalacie toxique IRD
Domenech, J.; Boccas, Bernard; Pellegrin, Frédéric; Laurent, Dominique; Kohler, Franz; Magnol, J.; Lambert, C..
Tipo: Text Palavras-chave: FUSARIOSE; CHAMPIGNON PARASITE; CHEVAL; TOXICITE; EPIDEMIOLOGIE; LEUCOENCEPHALOMALACIE.
Ano: 1984 URL: http://www.documentation.ird.fr/hor/fdi:43683
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Etude de l'activité acaricide des extraits d'organismes marins de Nouvelle-Calédonie sur Boophilus microplus IRD
Brun, Luc-Olivier; Debitus, Cécile; Marcillaud, C.; Duhet, D.; Laurent, Dominique.
Tipo: Text Palavras-chave: SUBSTANCE NATURELLE; INVERTEBRE AQUATIQUE; ACTIVITE BIOLOGIQUE; INSECTICIDE; ACARICIDE; EXTRACTION; EXPERIMENTATION; BOVIN; TEST; TIQUE; BOOPHILUS MICROPLUS.
Ano: 1985 URL: http://www.documentation.ird.fr/hor/fdi:22639
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First Evidence of Palytoxin and 42-Hydroxy-palytoxin in the Marine Cyanobacterium Trichodesmium ArchiMer
Kerbrat, Anne Sophie; Amzil, Zouher; Pawlowiez, Ralph; Golubic, Stjepko; Sibat, Manoella; Darius, Helene Taiana; Chinain, Mireille; Laurent, Dominique.
Marine pelagic diazotrophic cyanobacteria of the genus Trichodesmium (Oscillatoriales) are widespread throughout the tropics and subtropics, and are particularly common in the waters of New Caledonia. Blooms of Trichodesmium are suspected to be a potential source of toxins in the ciguatera food chain and were previously reported to contain several types of paralyzing toxins. The toxicity of water-soluble extracts of Trichodesmium spp. were analyzed by mouse bioassay and Neuroblastoma assay and their toxic compounds characterized using liquid chromatography coupled with tandem mass spectrometry techniques. Here, we report the first identification of palytoxin and one of its derivatives, 42-hydroxy-palytoxin, in field samples of Trichodesmium collected in...
Tipo: Text Palavras-chave: Cyanobacteria; Trichodesmium; Palytoxin; 42-hydroxy-palytoxin; Clupeotoxism.
Ano: 2011 URL: https://archimer.ifremer.fr/doc/00040/15143/12576.pdf
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Fusarium moniliforme du maïs en Nouvelle-Calédonie : relations hôte-parasite IRD
Pellegrin, Frédéric; Kohler, Franz; Laurent, Dominique; Boccas, Bernard.
Tipo: Text Palavras-chave: CHAMPIGNON PARASITE; PLANTE HOTE; INFESTATION; VARIATION TEMPORELLE; VARIATION SPATIALE; ETUDE EXPERIMENTALE; HISTORADIOGRAPHIE; ZONE SUBTROPICALE.
Ano: 1988 URL: http://www.documentation.ird.fr/hor/fdi:30611
Registros recuperados: 46
Primeira ... 123 ... Última
 

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