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Registros recuperados: 385
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A contribution to attenuation of health problems in Bolivia : bioactive natural compounds from native plants reported in traditional medicine IRD
Bravo, J.A.; Sauvain, Michel; Gimenez, A.; Massiot, G.; Deharo, Eric; Lavaud, C..
Tipo: Text Palavras-chave: PALUDISME; LEISHMANIOSE; TRYPANOSOMIASE HUMAINE; PARASITE; BACTERIE; CHAMPIGNON; PLANTE MEDICINALE; SUBSTANCE NATURELLE; MEDECINE TRADITIONNELLE; ACTIVITE BIOLOGIQUE; EFFICACITE; SPECTROSCOPIE; CHROMATOGRAPHIE.
Ano: 2003 URL: http://www.documentation.ird.fr/hor/fdi:010034641
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A free-living Rhizobium sp. able to grow on N2 as sole nitrogen source IRD
Dreyfus, Bernard; Elmerich, C..
Tipo: Text Palavras-chave: BACTERIE; NODULE RACINAIRE; NODOSITE VEGETALE; ISOLEMENT; SOUCHE; LEGUMINEUSE TROPICALE.
Ano: 1983 URL: http://www.documentation.ird.fr/hor/fdi:010004995
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A lactic acid bacterium with potential application in cassava fermentation IRD
Giraud, Eric; Brauman, Alain; Kéléke, S.; Gosselin, Laurent; Raimbault, Maurice.
An amylolytic lactic acid bacterium, identified as #Lactobacillus plantarum$, was isolated from cassava roots (#Manihot esculenta$ var. Ngansa) during retting. Cultured on starch, the strain displayed a growth rate of 0.43 per hour, a biomass yield of 0.19 g/g, and a lactate yield of 0.81 g/g. The growth kinetics were similar on starch and glucose. Enough enzyme was synthesized, and starch hydrolysis was not a limiting factor for growth. The synthesized amylolytic enzyme was purified by fractionated precipitation with ammonium sulfate and by anion exchange chromatography. It was identified as an alpha-amylase with an optimal pH of 5.5 and an optimal temperature of 65°C. The use of such a strain as a cassava fermentation starter for gari production had the...
Tipo: Text Palavras-chave: FERMENTATION; AMIDON; GLUCOSE; MICROBIOLOGIE; BACTERIE; MILIEU DE CULTURE; ENZYME; PURIFICATION; PH; TEMPERATURE; ACTIVITE ENZYMATIQUE; AMYLASE; ACIDE LACTIQUE.
Ano: 1996 URL: http://www.documentation.ird.fr/hor/fdi:010008964
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A propos de l'Azotobacter lacticogenes IRD
Dommergues, Yvon.
Tipo: Text Palavras-chave: BIOLOGIE DU SOL; MICROFLORE; BACTERIE; MORPHOLOGIE; PHYSIOLOGIE; ETUDE COMPARATIVE; AZOTOBACTER LACTICOGENES; AZOTOBACTER INDICUM; FIXATION D'AZOTE ATMOSPHERIQUE.
Ano: 1953 URL: http://www.documentation.ird.fr/hor/fdi:11082
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A simple membrane-filter technique for the enumeration of S-reducing bacteria in soil and water samples IRD
Traore, S.A.; Jacq, Vincent.
Tipo: Text Palavras-chave: SOL; EAU; BACTERIE; SULFOREDUCTION; NUMERATION; METHODE.
Ano: 1991 URL: http://www.documentation.ird.fr/hor/fdi:36462
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A Xenorhabdus sp. (Eubacteriales : Enterobacteriaceae) symbiotically associated with Steinernema kraussei (Nematoda : Steinernematidae) IRD
Akhurst, R.J..
Tipo: Text Palavras-chave: NEMATODE ENTOMOPARASITE; BACTERIE; SYMBIOSE; STEINERNEMATIDAE; STEINERNEMA KRAUSSEI; ENTEROBACTERIACEAE; XENORHABDUS.
Ano: 1982 URL: http://www.documentation.ird.fr/hor/fdi:02140
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Acacia : nodulation et rhizobiums associés IRD
Lajudie, Philippe de; Dupuy, Nicolas; Ndiaye, A.; Neyra, Marc; Boivin, Catherine; Gillis, M.; Dreyfus, Bernard.
Cette présentation propose une revue bibliographique de certains aspects de la nodulation des acacias, en particulier en ce qui concerne la diversité des rhizobiums qui leur sont associés, au regard de la taxonomie générale des rhizobiums, et développe plus en détails les derniers résultats obtenus au Sénégal dans ce domaine. (Résumé d'auteur)
Tipo: Text Palavras-chave: SYMBIOSE; FIXATION BIOLOGIQUE DE L'AZOTE; ARBRE; CROISSANCE; BACTERIE; TAXONOMIE; DIVERSITE SPECIFIQUE.
Ano: 1998 URL: http://www.documentation.ird.fr/hor/fdi:010016085
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Action de la toxine soluble thermostable de Bacillus thuringiensis sur la croissance et le développement du Criquet migrateur africain Locusta migratoria migratorioides (R. et F.) (Orthoptera, Acrididae) IRD
Gry, Jacques.
Tipo: Text Palavras-chave: ENTOMOLOGIE APPLIQUEE; ACRIDIEN; DEVELOPPEMENT; INSECTICIDE; BACTERIE; ETUDE EXPERIMENTALE; METHODOLOGIE; LOCUSTA MIGRATORIA MIGRATORIOIDES; BACILLUS THURINGIENSIS; TOXINE.
Ano: 1971 URL: http://www.documentation.ird.fr/hor/fdi:04781
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Actividades metanogenicas de lodos granulares de un digestor de lecho de lodos IRD
Guyot, Jean-Pierre; Noyola, A.; Ramirez, F.; Monroy, O..
Tipo: Text Palavras-chave: BOUE; BIOMASSE; FERMENTATION METHANIQUE; METHANOGENESE; ACETATE; PROPIONATE; CINETIQUE; BACTERIE; METHODE D'ANALYSE; CHROMATOGRAPHIE EN PHASE GAZEUSE; ETUDE EXPERIMENTALE.
Ano: 1988 URL: http://www.documentation.ird.fr/hor/fdi:010024920
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Activité bactérienne dans l'upwelling mauritanien : relation avec l'oxygène et la matière organique IRD
Herbland, Alain.
Tipo: Text Palavras-chave: ACTIVITE BIOLOGIQUE; BACTERIE; ANALYSE QUANTITATIVE; ASSIMILATION; RESPIRATION; RENDEMENT; VARIATION SPATIALE; OXYGENE DISSOUS; MATIERE ORGANIQUE DISSOUTE; MATIERE ORGANIQUE PARTICULEE; PHOSPHORE ORGANIQUE; CORRELATION STATISTIQUE.
Ano: 1974 URL: http://www.documentation.ird.fr/hor/fdi:07406
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Agrobacterium tumefaciens gene transfer to Casuarina glauca : a tropical nitrogen-fixing tree IRD
Le, Q.V.; Bogusz, Didier; Gherbi, H.; Lappartient, A.; Duhoux, Emile; Franche, C..
Transgenic calli of the tropical tree #Casuarina glauca$ were produced using #Agrobacterium tumefaciens$-mediated gene transfer. Hypocotyls, cotyledons and epicotyls were excised from 30-60-day old #Casuarina$ seedlings and cocultivated with #Agrobacterium$ strain C58C1(pGV2260) containing the binary vector BIN19GUSINT. Transformed calli were selected on nutrient medium supplemented with 0,5 microM NAA, 2,5 microM BA and 50 mg/l kanamycin. Some of the factors influencing T-DNA transfer to #C. glauca$ explants were studied. Optimal transformation rates were obtained when explants from 45-day old seedlings were cocultivated for 3 days in the presence of 25 microM acetosyringone. Transgenic buds differentiated on 10% of the calli grown on transformed...
Tipo: Text Palavras-chave: AMELIORATION DES PLANTES; AMELIORATION GENETIQUE; ARBRE FORESTIER; TRANSFERT DE GENE; BACTERIE; ACTIVITE ENZYMATIQUE; PLANTE TRANSGENIQUE; BIOLISTIQUE.
Ano: 1996 URL: http://www.documentation.ird.fr/hor/fdi:010011871
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Altered growth and development of Steinernema carpocapsae DD136 by Xenorhabdus nematophilus mutants IRD
Jewell, J.B.; Dunphy, G.B..
La part prise par les lipides dans la croissance et le développement de #Steinernema carpocapsae$ DD 136 en culture monoxénique avec #Xenorhabiditis nematophilus$ ATCC 19061 a été étudiée en utilisant le milieu de culture "Biosys jaune d'oeufs" délipidé. L'extrait lipidique total du jaune d'oeuf et celui des phospholipides augmentent le taux de croissance et la production de juvéniles infestants (IJs). La phosphatidylcholine à une concentration de 0.05 g/100 ml, produit le maximum de nématodes et de IJs. Comparé au type sauvage, #X. nematophilus$ "Tn5 muté" présente un niveau élevé en lipase, réduit la production de IJs et diminue le taux de croissance et le développement des nématodes. Le milieu de culture initialement conditionné par la bactérie sauvage,...
Tipo: Text Palavras-chave: NEMATODE; CROISSANCE; DEVELOPPEMENT BIOLOGIQUE; JUVENILE; BACTERIE; MILIEU DE CULTURE; LIPIDE; MUTANT; CULTURE MONOXENIQUE.
Ano: 1995 URL: http://www.documentation.ird.fr/hor/fdi:42735
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Amélioration de la croissance et de la fixation : étude de deux acacias australiens : Acacia Holocericea A. Cunn ex G. Don et Acacia mangium Wild IRD
Da, E.S.; Guissou, T..
Tipo: Text Palavras-chave: ARBRE; AMELIORATION DES PLANTES; LEGUMINEUSE; FIXATION BIOLOGIQUE DE L'AZOTE; SYMBIOSE; ISOLEMENT; BACTERIE; SOL; CROISSANCE; NODULATION.
Ano: 2001 URL: http://www.documentation.ird.fr/hor/fdi:010028509
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An effective strain of Frankia from Casuarina Sp. IRD
Diem, Hoang Gia; Gauthier, Daniel; Dommergues, Yvon.
Tipo: Text Palavras-chave: SYMBIOSE; BACTERIE; ISOLEMENT; METHODE; CROISSANCE; CARACTERE MORPHOLOGIQUE; MILIEU DE CULTURE; RHIZOSPHERE; ETUDE COMPARATIVE; INOCULATION; NODULE; DEVELOPPEMENT; CASUARINA; FRANKIA.
Ano: 1983 URL: http://www.documentation.ird.fr/hor/fdi:16158
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An overview of the potential and agronomic utilization of biological N2-fixation in wetland rice cultivation IRD
Roger, Pierre-Armand.
Tipo: Text Palavras-chave: FIXATION BIOLOGIQUE DE L'AZOTE; RIZIERE; RHIZOSPHERE; FERTILISATION DU SOL; BACTERIE; LEGUMINEUSE; APPLICATION AGRONOMIQUE; ENGRAIS VERT; INTENSIFICATION DE L'AGRICULTURE.
Ano: 1993 URL: http://www.documentation.ird.fr/hor/fdi:39847
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Anaerobic bacteria from hypersaline environments IRD
Ollivier, Bernard; Caumette, P.; Garcia, Jean-Louis; Mah, R.A..
Tipo: Text Palavras-chave: BACTERIE; ANAEROBIOSE; FERMENTATION; METHANOGENESE; SULFATOREDUCTION; TAXONOMIE; ECOLOGIE; EAU CONTINENTALE; HYPERSALINITE; BACTERIE PHOTOTROPHE; BACTERIE SULFATO REDUCTRICE; BACTERIE FERMENTAIRE; BACTERIE ANAEROBIE; BACTERIE METHANOGENE; SYNTHESE BIBLIOGRAPHIQUE.
Ano: 1994 URL: http://www.documentation.ird.fr/hor/fdi:41111
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Analyse spatiale et fonctionnelle de la diversité d'un système symbiotique en milieux insulaire et continental : cas du Pterocarpus officinalis Jacq. et de ses microorganismes associés en forêt marécageuse IRD
Bâ, A.M. (coord.); Béna, Gilles; Dreyfus, Bernard; Le Roux, C.; Prin, Y.; Bouvet, J.M.; Dulormne, M.; Imbert, D.; Muller, F.; Rousteau, A.; Plenchette, C..
Tipo: Text Palavras-chave: FORET MARECAGEUSE; MILIEU INSULAIRE; MILIEU CONTINENTAL; SYMBIOSE; FIXATION BIOLOGIQUE DE L'AZOTE; BACTERIE; MYCORHIZE; ARBRE; DIVERSITE SPECIFIQUE; STRUCTURE DU PEUPLEMENT; STRUCTURE GENETIQUE; FACTEUR EDAPHIQUE; INONDATION; SALINITE; ADAPTATION.
Ano: 2006 URL: http://www.documentation.ird.fr/hor/fdi:010051741
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Analysis of precocious mortality of Pangasius hypophthalmus larvae (Siluriformes, Pangasiidae) during the larval rearing and propostion of appropriate treatments IRD
Subagja, J.; Slembrouck, Jacques; Hung, L.T.; Legendre, Marc.
Both in Indonesia and Vietnam, larval rearing of #Pangasius hypophthalmus$ remains problematic due to variable and generally low survival rates obtained. The first week represents the most critical period for these larvae and up to now the cannibalistic behaviour was considered as the main cause of mortality. In the present study, two experiments were carried out in order to better understand the evolution and causes of mortality of #P. hypophthalmus$ larvae from hatching up to 8 days of age and find out measures to improve survival rates. The first experiment was designed to evaluate the importance of cannibalism and differences in mortality when larvae from two different females were reared either in groups of 30 individuals or in isolated conditions (30...
Tipo: Text Palavras-chave: POISSON D'EAU DOUCE; PISCICULTURE; LARVE; MORTALITE; TAUX DE SURVIE; AGENT PATHOGENE; BACTERIE; CANNIBALISME; METHODE DE LUTTE; ANTIBIOTIQUE; ETUDE EXPERIMENTALE; OXYTETRACYCLINE.
Ano: 1998 URL: http://www.documentation.ird.fr/hor/fdi:010020353
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Analysis of Rhizobium from Sesbania rostrata IRD
Bogusz, Didier; Lajudie, Philippe de; Dreyfus, Bernard.
Tipo: Text Palavras-chave: SYMBIOSE; LEGUMINEUSE TROPICALE; BACTERIE; ISOLEMENT.
Ano: 1982 URL: http://www.documentation.ird.fr/hor/fdi:010014611
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Analysis of the plant genes involved in the nitrogen fixing symbiosis : Sesbania rostrata as a model IRD
Lajudie, Philippe de.
Tipo: Text Palavras-chave: LEGUMINEUSE TROPICALE; SYMBIOSE; BACTERIE; FIXATION BIOLOGIQUE DE L'AZOTE; NODULE RACINAIRE; MODELISATION; ANALYSE GENETIQUE; MUTATION; GENE NODULIN; LEGHEMOGLOBINE.
Ano: 1988 URL: http://www.documentation.ird.fr/hor/fdi:010023973
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