Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 183
Primeira ... 123456789 ... Última
Imagem não selecionada

Imprime registro no formato completo
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
Imagem não selecionada

Imprime registro no formato completo
A plant vacuolar system : the lutoïds from Hevea brasiliensis latex IRD
Auzac, J. d'; Chrestin, Hervé; Marin, Bernard; Lioret, Claude.
Tipo: Text Palavras-chave: PHYSIOLOGIE VEGETALE; HEVEA; LATEX; LUTOIDE; COMPOSITION CHIMIQUE; BIOCHIMIE; ACTIVITE ENZYMATIQUE; HEVEA BRASILIENSIS.
Ano: 1982 URL: http://www.documentation.ird.fr/hor/fdi:02188
Imagem não selecionada

Imprime registro no formato completo
Accelerated mineralisation of atrazine in maize rhizosphere soil Inra
Piutti, S.; Hallet, S.; Rousseaux, S.; Philippot, L.; Soulas, G.; Martin-Laurent, F..
The mineralisation rate of atrazine measured in soil pre-treated with this herbicide, was significantly higher in the maize rhizosphere than in bulk soil. Maize rhizosphere was also shown to significantly increase microbial biomass C as compared with bulk soil. Ribosomal intergenic spacer analysis conducted on nucleic acids extracted directly from soil samples revealed that the structure of microbial communities observed in the rhizosphere was slightly different from that of bulk soil. The quantification of the relative amount of the gene atzC, which encodes an enzyme involved in atrazine mineralisation, was carried out on soil nucleic acids by using quantitative-competitive PCR assays. It revealed that atzC was present at a higher level in the rhizosphere...
Tipo: Journal Article Palavras-chave: ATRAZINE; BIOMASSE MICROBIENNE; ACTIVITE ENZYMATIQUE; GENE ATZC; SCIENCES DU SOL.
Ano: 2002 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB0300032172095901&uri=/notices/prodinra1/2010/12/
Imagem não selecionada

Imprime registro no formato completo
Action, vis a vis de quelques agents parasitaires, de deux fractions elicitrices issues de Phytophthora capsici appliquees sur organes en survie et plantules de diverses especes vegetales Inra
Molot, P.M.; Mas, P.; Lecoq, H.; Marchoux, G..
Deux fractions élicitrices, issues de Phytophthora capsici et partiellement purifiées, G4 et G5 sont appliquées sur organes foliaires en survie de Capsicum annuum et de Cucumis melo. Elles ont pour effet non seulement de réduire l’infection fongique par P. capsici (tabl. 1) ou Colletotrichum lagenarium (tabl. 2), mais encore d’augmenter de façon significative le nombre de lésions locales produites par le virus de la mosaïque du concombre (tabl. 1) ou celui de la criblure du melon (tabl. 2). Sur cotylédons de C. annuum, Lycopersicon esculentum et C. melo en survie, la fraction G4 est très efficace si elle est déposée au site de contamination ou appliquée sur une blessure (tabl. 3). On observe alors une protection du piment, de la tomate et du melon...
Tipo: Journal Article Palavras-chave: CMV; VIRUS DE LA MOSAIQUE DU CONCOMBRE; ELICITEUR; BLESSURE; PLANTE HOTE; ACTIVITE ENZYMATIQUE.
Ano: 1984 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB9200011062022659&uri=/notices/prodinra1/2008/10/
Imagem não selecionada

Imprime registro no formato completo
Activité de la lipoprotéine lipase du tissu adipeux, au cours du paludisme expérimental des rongeurs IRD
Alrifai, W.; Maurois, P.; Fruchart, J.C.; Charet, P..
Tipo: Text Palavras-chave: PALUDISME; EXPERIMENTATION ANIMALE; SOURIS; RELATION HOTE PARASITE; METABOLISME; PROTEINE; ENZYME; ACTIVITE ENZYMATIQUE; LIPOPROTEINE LIPASE; TRIACYLGLYCERIDE; PLASMODIUM CHABAUDI.
Ano: 1980 URL: http://www.documentation.ird.fr/hor/fdi:19227
Imagem não selecionada

Imprime registro no formato completo
Activité glutamate deshydrogénase Nadp+ d'une fraction antigénique immunogénique de Trypanosoma cruzi IRD
Brenière, Simone Frédérique; Tibayrenc, Michel.
Tipo: Text Palavras-chave: IMMUNOLOGIE; ANTIGENE; ACTIVITE ENZYMATIQUE; ENZYME; GLUTAMATE DESHYDROGENASE NADP+; TRYPANOSOMA CRUZI.
Ano: 1983 URL: http://www.documentation.ird.fr/hor/fdi:03192
Imagem não selecionada

Imprime registro no formato completo
Activity and origin of digestive enzymes in gut of the tropical earthworm Pontoscolex corethrurus IRD
Zhang, Bao Guy; Rouland, C.; Lattaud, Claude; Lavelle, P..
Tipo: Text Palavras-chave: BIOLOGIE DU SOL; LOMBRIC; DIGESTION; ACTIVITE ENZYMATIQUE; ETUDE EXPERIMENTALE.
Ano: 1993 URL: http://www.documentation.ird.fr/hor/fdi:38613
Imagem não selecionada

Imprime registro no formato completo
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
Imagem não selecionada

Imprime registro no formato completo
Amylolytic enzymes from Aspergillus hennebergi (A. niger group) : purification and characterization of amylases from solid and liquid cultures IRD
Alazard, Didier; Baldensperger, Jacques.
Tipo: Text Palavras-chave: FERMENTATION; CHAMPIGNON; ENZYME; PURIFICATION; IDENTIFICATION; ACTIVITE ENZYMATIQUE; ETUDE EXPERIMENTALE; MILIEU SOLIDE; MILIEU LIQUIDE; ASPERGILLUS HENNEBERGI; GLUCOAMYLASE.
Ano: 1982 URL: http://www.documentation.ird.fr/hor/fdi:02184
Imagem não selecionada

Imprime registro no formato completo
Amylosucrase, a glucan-synthesizing enzyme from the α-amylase family Inra
Skov, L.K.; Mirza, O.; Henriksen, A.; Potocki de Montalk, G.; Remaud-Simeon, M.; Sarçabal, P.; Willemot, R.M.; Monsan, P.; Gajhede, M..
Amylosucrase (E.C. 2.4.1.4) is a member of Family 13 of the glycoside hydrolases (the α-amylases), although its biological function is the synthesis of amylose-like polymers from sucrose. The structure of amylosucrase from Neisseria polysaccharea is divided into five domains: an all helical N-terminal domain that is not similar to any known fold, a (β/α)8-barrel A-domain, B- and B′-domains displaying α/β-structure, and a C-terminal eight-stranded β-sheet domain. In contrast to other Family 13 hydrolases that have the active site in the bottom of a large cleft, the active site of amylosucrase is at the bottom of a pocket at the molecular surface. A substrate binding site resembling the amylase 2 subsite is not found in amylosucrase. The site is blocked by a...
Tipo: Journal Article Palavras-chave: AMYLOSUCRASE; BACTERIE NON PATHOGENE; NEISSERIA POLYSACCHAREA; ALPHA AMYLASE; SACCHAROSE; STRUCTURE TRIDIMENSIONNELLE; GLYCOGENE; SEQUENCE NUCLEOTIDIQUE; ACTIVITE ENZYMATIQUE; GLYCOSIDE HYDROLYSE; NEISSERICEAE; BACTERIE GRAM NEGATIF; SUCRE.
Ano: 2001 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB0400023316102157&uri=/notices/prodinra1/2010/10/
Imagem não selecionada

Imprime registro no formato completo
An RNA-dependent-RNA-polymerase activity associated with grapevine chrome mosaic nepovirus infection Inra
Le Gall, O.; Candresse, T.; Dunez, J..
A virus-induced, viral RNA-specific, RNA-dependent-RNA-poly-merase activity has been observed in vitro associated with membrane extracts of plants of three different species after infection with grapevine chrome mosaic nepovirus (GCMV). The products of this activity are full-length, positive sense GCMV RNAs present in double-stranded structures. As has been demonstrated for a relative to nepoviruses, cowpea mosaic comovirus, this activity probably corresponds to the nepoviral replication complex.
Tipo: Journal Article Palavras-chave: GCMV; VIRUS DES VEGETAUX; ACTIVITE ENZYMATIQUE.
Ano: 1997 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB9800011444066392&uri=/notices/prodinra1/2010/11/
Imagem não selecionada

Imprime registro no formato completo
Application of a SUGAR model to analyse sugar accumulation in peach cultivars that differ in glucose–fructose ratio Inra
Wu, B.H.; Quilot-Turion, B.; Génard, M.; Li, S.H.; Zhao, J.B.; Yang, J.; Wang, Y.Q..
A SUGAR model, which was established to predict the partitioning of carbon into sucrose, glucose, fructose and sorbitol in fruit mesocarp of peach cultivars (Prunus persica (L.) Batch) with normal glucose: fructose ratio (G:F) of 0·8–1·5, was evaluated and extended for peach cultivars with a high G:F ratio of 1·5–7·8. The extended model (SUGARb) is more generic and assumes a high G:F ratio to be due to preferential transformation of sorbitol into glucose, preferential utilization of fructose or preferential conversion of fructose into glucose. The simulated seasonal variations in sugars via the SUGARb-model-matched experimental data for three normal and three high G:F cultivars well, and accurately exhibited G:F ratio characteristics. The relative rates of...
Tipo: Journal Article Palavras-chave: ACTIVITE ENZYMATIQUE; DIVERSITE GENETIQUE SUGAR; FRUCTOSE; GLUCOSE; SUCROSE; SORBITOL; GENETIC DIVERSITY; QUALITY.
Ano: 2011 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD201186da1c25&uri=/notices/prodinra1/2011/06/
Imagem não selecionada

Imprime registro no formato completo
Autoacetylation of the Ralstonia solanacearum effector PopP2 targets a lysine residue essential for RRS1-RMediated immunity in Arabidopsis Inra
Tasset, C.; Bernoux, M.; Jauneau, A.; Pouzet, C.; Brière, C.; Kieffer-Jacquinod, S.; RIVAS, S.; Deslandes, L..
Abstract /Type III effector proteins from bacterial pathogens manipulate components of host immunity to suppress defenceresponses and promote pathogen development. In plants, host proteins targeted by some effectors called avirulenceproteins are surveyed by plant disease resistance proteins referred to as ‘‘guards’’. The Ralstonia solanacearum effectorprotein PopP2 triggers immunity in Arabidopsis following its perception by the RRS1-R resistance protein. Here, we showthat PopP2 interacts with RRS1-R in the nucleus of living plant cells. PopP2 belongs to the YopJ-like family of cysteineproteases, which share a conserved catalytic triad that includes a highly conserved cysteine residue. The catalytic cysteinemutant PopP2-C321A is impaired in its avirulence...
Tipo: Journal Article Palavras-chave: PATHOGENE; IMMUNITE; ACTIVITE ENZYMATIQUE; ACETYL-TRANSFERASE PATHOGEN; IMMUNITY; ENZYMATIC ACTIVITY; AUTOACETYLATION.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20111b1e883f&uri=/notices/prodinra1/2011/01/
Imagem não selecionada

Imprime registro no formato completo
Bilan des travaux effectués dans le cadre de l'ATP-CNRS : bases physiologiques et génétiques de la production végétale : aspects métaboliques et cytologiques de la production chez l'Hévéa (expiration 31.12.80) IRD
Tipo: Text Palavras-chave: PHYSIOLOGIE VEGETALE; HEVEA; LATEX; BIOCHIMIE; PH; ACTIVITE ENZYMATIQUE; VARIATION; PRODUCTION; STIMULATION; INHIBITION.
Ano: 1980 URL: http://www.documentation.ird.fr/hor/fdi:00438
Imagem não selecionada

Imprime registro no formato completo
Biochemical and catalytic properties of three recombinant alcohol acyltransferases of melon. Sulfur-containing ester formation, regulatory role of CoA-SH in activity, and sequence elements conferring substrate preference Inra
Lucchetta, L.; Manriquez-Becerra, D.; El-Sharkawy, I.; Flores, F.B.; Sanchez-Bel, P.; Zouine, M.; Ginies, C.; Bouzayen, M.; Rombaldi, C.; Pech, J.C.; Latché, A..
Alcohol acyltransferases (AAT) play a key role in the biosynthesis of ester aroma volatiles in fruit. Three ripening-specific recombinant AATs of cantaloupe Charentais melon fruit (Cm-AAT1, Cm-AAT3, and Cm-AAT4) are capable of synthesizing thioether esters with Cm-AAT1 being by far the most active. All proteins, as well as AAT(s) extracted from melon fruit, are active as tetramers of around 200 kDa. Kinetic analysis demonstrated that CoA-SH, a product of the reaction, is an activator at low concentrations and an inhibitor at higher concentrations. This was confirmed by the addition of phosphotransacetylase at various concentrations, capable of modulating the level of CoA-SH in the reaction medium. Site-directed mutagenesis of some amino acids that were...
Tipo: Journal Article Palavras-chave: PROPRIETE BIOCHIMIQUE ALCOHOL ACYLTRANSFERASES; AROMA VOLATILES; SULFUR-CONTAINING ESTERS; SITE-DIRECTED MUTAGENESIS; ACTIVITE ENZYMATIQUE.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20073d83f2e9&uri=/notices/prodinra1/2007/10/
Imagem não selecionada

Imprime registro no formato completo
Biochemical aspects of bark dryness induced by overstimulation of rubber trees with ethrel IRD
Chrestin, Hervé.
Tipo: Text Palavras-chave: PHYSIOLOGIE VEGETALE; LATEX; METABOLISME; LUTOIDE; ACTIVITE ENZYMATIQUE; STIMULATION; ETHREL.
Ano: 1989 URL: http://www.documentation.ird.fr/hor/fdi:010009136
Imagem não selecionada

Imprime registro no formato completo
Both plant and bacterial nitrate reductase contribute to nitric oxide production in Medicago truncatula nitrogen-fixing nodules Inra
Horchani, F.; Prévot, M.; Boscari, A.; Evangelisti, E.; Meilhoc, E.; Bruand, C.; Raymond, P.; Boncompagni, É.; Aschi-Smiti, S.; Puppo, A.; Brouquisse, R..
Nitric oxide (NO) is a signaling and defense molecule of major importance in living organisms. In the model legume Medicago truncatula, NO production has been detected in the nitrogen fixation zone of the nodule, but the systems responsible for its synthesis are yet unknown and its role in symbiosis is far from being elucidated. In this work, using pharmacological and genetic approaches, we explored the enzymatic source of NO production in M. truncatula-Sinorhizobium meliloti nodules under normoxic and hypoxic conditions. When transferred from normoxia to hypoxia, nodule NO production was rapidly increased, indicating that NO production capacity is present in functioning nodules and may be promptly up-regulated in response to decreased oxygen availability....
Tipo: Journal Article Palavras-chave: OXYDE NITRIQUE; MONOXYDE D'AZOTE; BACTEROIDE; ACTIVITE ENZYMATIQUE; PROCESSUS PHYSIOLOGIQUE NITROGEN FIXATION; NITRIC OXIDE; TUNGSTATE; NITRATE REDUCTASE.
Ano: 2011 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2011c5e7ef11&uri=/notices/prodinra1/2011/03/
Imagem não selecionada

Imprime registro no formato completo
Breeding and growth of Rhizopus in raw cassava by solid state fermentation IRD
Soccol, C.R.; Marin, Bernard; Raimbault, Maurice; Lebeault, J.M..
Tipo: Text Palavras-chave: FERMENTATION EN MILIEU SOLIDE; AMIDON; MANIOC; MILIEU DE CULTURE; PROTEINE; ACTIVITE ENZYMATIQUE; QUALITE; PRODUIT ALIMENTAIRE; CHAMPIGNON FILAMENTEUX; AMYLASE.
Ano: 1994 URL: http://www.documentation.ird.fr/hor/fdi:41105
Imagem não selecionada

Imprime registro no formato completo
Caractère lysosomal des lutoïdes du latex d'Hevea brasiliensis Mul-Arg. IRD
Pujarniscle, Serge.
Tipo: Text Palavras-chave: PHYSIOLOGIE VEGETALE; HEVEA; LATEX; LUTOIDE; BIOCHIMIE; ENZYME; HYDROLASE; DOSAGE; ACTIVITE ENZYMATIQUE; ETUDE EXPERIMENTALE; LYSOSOME; HEVEA BRASILIENSIS.
Ano: 1968 URL: http://www.documentation.ird.fr/hor/fdi:12152
Imagem não selecionada

Imprime registro no formato completo
Caractérisation de Lactuca sativa L. et des espèces apparentées par électrofocalisation des estérases Inra
Roux, L.; Chengjiu, Z.; Roux, Y..
Les isoenzymes des estérases foliaires de Lactuca sativa et des espèces apparentées (L. aculeata, L. serriola, L. saligna, L. virosa) ont été séparées par électrofocalisation sur gel de polyacrylamide en gradient de pH 4 à 6,5. La variabilité des estérases est faible au sein de chaque espèce. L. sativa et L. serriola présentent des diagrammes très voisins qui confirment leur proche parenté ; L. aculeata apparaît proche de L. serriola ; L. saligna et L. virosa sont très distinctes des trois autres espèces. Les diagrammes d’estérases permettent de tester le caractère hybride des plantes issues de croisements interspécifiques (L. sativa x L. virosa).
Tipo: Journal Article Palavras-chave: LACTUCA ACULEATA; LACTUCA SALIGNA; LACTUCA SERRIOLA; LACTUCA VIROSA; ISOENZYME; ELECTROFOCALISATION; ESTERASE; DIAGRAMME; ACTIVITE ENZYMATIQUE; TECHNIQUE ANALYTIQUE; CROISEMENT INTERSPECIFIQUE ASTERACEAE.
Ano: 1985 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2009b0aacbcf&uri=/notices/prodinra1/2009/03/
Registros recuperados: 183
Primeira ... 123456789 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional