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Registros recuperados: 32
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2 : Environnement, matière organique particulaire et production phyto-planctonique IRD
Charpy, Loïc; Bonnet, Sylvain; Le Borgne, Robert.
Tipo: Text Palavras-chave: LAGON; MATIERE ORGANIQUE PARTICULEE; CHLOROPHYLLE; PHEOPHYTINE; ATP; PHYTOPLANCTON; CARBONE; ANALYSE DE RESULTAT.
Ano: 1986 URL: http://www.documentation.ird.fr/hor/fdi:23211
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2 : Le microphytobenthos : 1 : biomasse (premiers résultats) IRD
Charpy Roubaud, C.J..
Tipo: Text Palavras-chave: LAGON; BENTHOS; SEDIMENT; SEL NUTRITIF; ANALYSE QUALITATIVE; ANALYSE QUANTITATIVE; BIOMASSE; PIGMENT; CHLOROPHYLLE; CAROTENOIDE; ATP; MICROPHYTOBENTHOS; ANALYSE DE RESULTAT.
Ano: 1986 URL: http://www.documentation.ird.fr/hor/fdi:23209
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Assessment of oocyte and trochophore quality in Pacific oyster, Crassostrea gigas ArchiMer
Boulais, Myrina; Corporeau, Charlotte; Huvet, Arnaud; Bernard, Ismael; Quere, Claudie; Quillien, Virgile; Fabioux, Caroline; Suquet, Marc.
Pacific oyster hatchery production remains highly variable, partially due to inconsistent gamete quality. However, little attention has been paid to oocyte quality in Pacific oyster compared to important vertebrate aquaculture species such as fishes. The aims of the present study were to identify criteria of oocyte and trochophore quality used as predictive tools for embryo developmental success at the D-larval stage. Twenty-six potential proxies of oocyte and trochophore quality were studied on 25 mature females, as determined using histology. Some morphological and biochemical characteristics of mature oocytes were described. Protein appeared to be the main constituent of fully mature Pacific oyster oocytes. Neutral lipids accounted for 61% of the total...
Tipo: Text Palavras-chave: Crassostrea gigas; Oocyte quality; Trochophore; Lipid; Gene expression; ATP.
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00239/35010/33544.pdf
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Biochemical approach to muscular function in insects National Institute of Agronomic Research
Maruyama, K..
Tipo: Journal Article-postprint Palavras-chave: INSECT; MUSCLE; FUNCTION; BIOCHEMISTRY; PROTEIN; ACTOMYOSIN; ATP; INSECTE; MUSCLE ALAIRE; FONCTION; BIOCHIMIE; PROTEINE; ACTOMYOSIN; ADENOSINE TRIPHOSPHATE.
Ano: 1957 URL: http://hdl.handle.net/2174/469
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Caracteristiques saisonnieres de l'hydrobiologie du complexe estuariende Marennes-Oleron (France). ArchiMer
Heral, Maurice; Razet, Daniel; Deslous-paoli, Jean-marc; Berthome, Jean-paul; Garnier, J..
Four seasonal compaigns providing a sampling of 15 stations each followed during half a tide cycle, i.e. 120 water samples permit the definition of the main hydrobiological features of Marennes-Oleron Bay: salinity and turbidity, phytoplanktonic biomasses, ATP concentrations. The authors suggest that a new way of adapted sampling to their objectives, will work out in the future by sampling during tidal cycles but as frequently as possible.
Tipo: Text Palavras-chave: Seasonal variations; Salinity; ATP; Estuaries; Turbidity; Hydrobiology; Salinity; Phytoplankton; Estuaries; Biomass; Hydrobiology; Physicochemical properties; Phytoplankton; Environmental conditions; Biomass.
Ano: 1982 URL: http://archimer.ifremer.fr/doc/1982/publication-1854.pdf
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Changes in motility, ATP content, morphology and fertilisation capacity during the movement phase of tetraploid Pacific oyster (Crassostrea gigas) sperm ArchiMer
Suquet, Marc; Labbe, C.; Brizard, Raphael; Donval, Anne; Le Coz, Jean-rene; Quere, Claudie; Haffray, P..
Changes in sperm features during the movement phase are especially interesting to study in external fertilization species whose sperm duration movement is long because this implies a significant adaptation of moving cells to the external medium. This study describes the changes in tetraploid Pacific oyster sperm characteristics in relation to time post activation. Sperm individually collected on three tetraploid males were activated in seawater. Their features were analysed over a 24 h period and compared to a sperm pool collected on three diploid males as a reference. The percentage of motile spermatozoa, the intracellular ATP content, and the fine structure of spermatozoa were studied in relation to time post activation. Furthermore, the fertilisation...
Tipo: Text Palavras-chave: Crassostrea gigas; Sperm; Tetraploid; Motility; ATP; Ultrastructure.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00006/11756/8639.pdf
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Chloride-ion stimulation of the tonoplast H+-translocating ATPase from Hevea brasiliensis (rubber tree) latex : a dual mechanism IRD
Marin, Bernard; Gidrol, X..
Tipo: Text Palavras-chave: PHYSIOLOGIE VEGETALE; HEVEA; LATEX; ATP; ENZYME; VACUOLE; CHLORE; ANION; ACTIVITE ENZYMATIQUE; PH; ETUDE EXPERIMENTALE; ATPASE; TONOPLASTE; POTENTIEL ELECTRIQUE.
Ano: 1985 URL: http://www.documentation.ird.fr/hor/fdi:010025034
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Cl- and regulation of pH by MDCK-C11 cells BJMBR
Tararthuch,A.L.; Fernandez,R.; Malnic,G..
The interaction between H+ extrusion via H+-ATPase and Cl- conductance was studied in the C11 clone of MDCK cells, akin to the intercalated cells of the collecting duct. Cell pH (pHi) was measured by fluorescence microscopy using the fluorescein-derived probe BCECF-AM. Control recovery rate measured after a 20 mM NH4Cl acid pulse was 0.136 ± 0.008 pH units/min (dpHi/dt) in Na+ Ringer and 0.032 ± 0.003 in the absence of Na+ (0 Na+). With 0 Na+ plus the Cl- channel inhibitor NPPB (10 µM), recovery was reduced to 0.014 ± 0.001 dpHi/dt. 8-Br-cAMP, known to activate CFTR Cl- channels, increased dpHi/dt in 0 Na+ to 0.061 ± 0.009 and also in the presence of 46 nM concanamycin and 50 µM Schering 28080. Since it is thought that the Cl- dependence of H+-ATPase might...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cell pH; CAMP; ATP; H+-ATPase; Valinomycin; Cl-.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000500012
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Cloning of a cDNA encoded by a member of the Arabidopsis thaliana ATP sulfurylase multigene family. Expression studies in yeast and in relation to plant sulfur nutrition Inra
Logan, H.M.; Cathala, N.; Grignon, C.; Davidian, J.C..
Tipo: Journal Article Palavras-chave: ARABIDOPSIS THALIANA; ATP; SULFURYLASE; CLONAGE MOLECULAIRE; ADNC; SEQUENCE NUCLEOTIDIQUE; SACCHAROMYCES CEREVISIAE; SEQUENCE HOMOLOGUE; ACTIVITE ENZYMATIQUE; TRANSCRIPTION; SULFATE; BRASSICA NAPUS.
Ano: 1996 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB0200029830090142&uri=/notices/prodinra1/2010/09/
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Contribution of benthic biomass to overall metabolism in New Caledonian lagoon sediments IRD
Boucher, G.; Clavier, Jacques.
Tipo: Text Palavras-chave: LAGON; BENTHOS; FOND MARIN; INTERFACE EAU SEDIMENT; SEDIMENT; ATP; GRANULOMETRIE; MICROFAUNE; MICROFLORE; METHODE; ACTIVITE METABOLIQUE; CONSOMMATION D'OXYGENE.
Ano: 1990 URL: http://www.documentation.ird.fr/hor/fdi:010025840
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Ecophysiological and metabolic adaptations to sulphide exposure of the oyster Crassostrea gigas ArchiMer
Le Moullac, Gilles; Cheize, Marie; Gastineau, Olivier; Daniel, Jean-yves; Le Coz, Jean-rene; Huvet, Arnaud; Moal, Jeanne; Pouvreau, Stephane; Van Wormhoudt, A; Samain, Jean-francois.
The purpose of this study is to examine the response of the oyster Crassostrea gigas to sulphide at different biological scales. A first experiment was designed to measure for 20 h the clearance (CR) and oxygen consumption (OC) rates of oysters exposed at different concentrations of sulphide (0, 3, 6, 12, 20, and 40 mu M). The second experiment was carried out to evaluate the metabolic adaptations to chronic sulphide exposure for 10 days by measuring PK and PEPCK enzyme activities, succinate and alanine content, the adenylate energy charge (AEC), and the activity of the electron transport system (ETS)in whole oysters at above 20 mu M. PK and PEPCK mRNAs and enzyme activities have been measured in adductor muscle. When exposed to sulphide above 20 mu M, CR...
Tipo: Text Palavras-chave: ATP; AEC; Electron transport system; Succcinate; Alanine; Phosphoenolpyruvate carboxykinase; Pyruvate kinase; Oxygen consumption; Clearance rate; Crassostrea gigas; Sulphide; Oyster.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-3924.pdf
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Effect of Bentazon on Growth and Physiological Responses of Marine Diatom: Chaetoceros gracilis ArchiMer
Hourmant, Annick; Amara, Anis; Pouline, Patrick; Durand, Gael; Arzul, Genevieve; Quiniou, Francoise.
The herbicide bentazon (CASRN 25057-89-0) is extensively used in agriculture in Brittany (France) to replace atrazine. Bentazon is not readily adsorbed by soil and therefore it enters adjacent freshwater ecosystems, making its way to estuarine and marine waters areas. Information regarding its effects on marine ecosystems is scarce. Phytotoxicity assessments were conducted in the laboratory on the common diatom Chaetoceros gracilis using both the active ingredient and its formulated product (Basamais). The 3 day EC50 Using cell counts were, respectively, 150 mg/L and 60 mu g/L for bentazon active ingredient and for bentazon-formulated while cellular volume was increased. Although bentazon is known as a photosystem II inhibitor, it produced an increase of...
Tipo: Text Palavras-chave: Photosynthesis; Marine diatom; Growth; Chlorophylls; Chaetoceros gracilis; Carotenoids; Bentazon; ATP.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/publication-6637.pdf
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Effect of nigericin on the H+-translocating adenosine triphosphatase from tonoplast of Hevea latex IRD
Marin, Bernard.
Tipo: Text Palavras-chave: PHYSIOLOGIE VEGETALE; HEVEA; LATEX; ATP; ENZYME; VACUOLE; ACTIVITE ENZYMATIQUE; PHOSPHORE; ANION; PH; ETUDE EXPERIMENTALE; ATPASE; NIGERICINE; TONOPLASTE.
Ano: 1986 URL: http://www.documentation.ird.fr/hor/fdi:010025035
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Effects of eugenol on resting tension of rat atria BJMBR
Olivoto,R.R.; Damiani,C.E.N.; Kassouf Silva,I.; Lofrano-Alves,M.S.; Oliveira,M.A.; Fogaça,R.T.H..
In cardiac and skeletal muscle, eugenol (μM range) blocks excitation-contraction coupling. In skeletal muscle, however, larger doses of eugenol (mM range) induce calcium release from the sarcoplasmic reticulum. The effects of eugenol are therefore dependent on its concentration. In this study, we evaluated the effects of eugenol on the contractility of isolated, quiescent atrial trabeculae from male Wistar rats (250-300 g; n=131) and measured atrial ATP content. Eugenol (1, 3, 5, 7, and 10 mM) increased resting tension in a dose-dependent manner. Ryanodine [100 µM; a specific ryanodine receptor (RyR) blocker] and procaine (30 mM; a nonspecific RyR blocker) did not block the increased resting tension induced by eugenol regardless of whether extracellular...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Eugenol; Atrial trabeculae; Resting tension; Ryanodine; Rat; ATP.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2014000400328
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Etude quantitative du benthos dans le lagon d'Ouvéa : liste taxonomique, densités et biomasses du macrobenthos, ATP, pigments photosynthétiques et matière organique dans le sédiment = Ouvea lagoon benthos quantitative study : taxonomic checklist, macrobenthos densities and biomasses, ATP, photosynthetic pigments and organic matter in the sediment IRD
Clavier, Jacques; Garrigue, Claire; Barbigant, Georges; Di Matteo, Angelo; Hamel, Pascal; Kulbicki, Michel; Urbain, Roger.
Le benthos du lagon d'Ouvéa a été étudié sur 62 stations régulièrement réparties. Sur chaque station, l'échantillonnage a compris 10 prélèvements réalisés à l'aide d'une benne Smith McIntyre de O.1m2 et une collecte en plongée de la mégafaune (>20 mm) sur une radiale de 100 m2. Des échantillons ont également été prélevés à l'aide de carottes de 5.31 cm2 pour mesurer les quantités d'ATP, de pigments photosynthétiques et le pourcentage de matière organique dans le sédiment. Les résultats sont exprimés pour chaque taxon, en nombre d'individus, en poids sec sans cendre par m2. Un total de 341 taxons a été identifié. Le présent document décrit les méthodes mises en oeuvre et présente les résultats obtenus au cours de l'étude. (Résumé d'auteur)
Tipo: Text Palavras-chave: LAGON; BIOLOGIE MARINE; BENTHOS; BIOMASSE; TAXONOMIE; INVENTAIRE; ATP; MATIERE ORGANIQUE; PHOTOSYNTHESE.
Ano: 1992 URL: http://www.documentation.ird.fr/hor/fdi:36654
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Extracellular ATP in the lymphohematopoietic system: P2Z purinoceptors and membrane permeabilization BJMBR
Persechini,P.M.; Bisaggio,R.C.; Alves-Neto,J.L.; Coutinho-Silva,R..
The effects of extracellular nucleosides and nucleotides on many organs and systems have been recognized for almost 50 years. The effects of extracellular ATP (ATPo), UTPo, ADPo, and other agonists are mediated by P2 purinoceptors. One of the most dramatic effects of ATPo is the permeabilization of plasma membranes to low molecular mass solutes of up to 900 Da. This effect is evident in several cells of the lymphohematopoietic system and is supposed to be mediated by P2Z, an ATP4--activated purinoceptor. Here, we review some basic information concerning P2 purinoceptors and focus our attention on P2Z-associated phenomena displayed by macrophages. Using fluorescent dye uptake, measurement of free intracellular Ca2+ concentration and electrophysiological...
Tipo: Info:eu-repo/semantics/article Palavras-chave: ATP; P2Z purinoceptor; Macrophage; Monocyte; T cell; Permeabilization.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000100004
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Inorganic phosphate uptake in a brackish tropical lagoon IRD
Lemasson, Lionel; Pagès, Jean; Crémoux, Jean-Louis.
Tipo: Text Palavras-chave: PHOSPHATE; PHOSPHORE; CYCLE D'ELEMENT; PHYTOPLANCTON; PHOTOSYNTHESE; BACTERIE; ANALYSE ISOTOPIQUE; RAPPORT CNP; MARQUEUR MOLECULAIRE; ATP; CINETIQUE; PHOTOPERIODICITE; MESURE IN SITU; CORRELATION; CARBONE ORGANIQUE; INTENSITE LUMINEUSE; MILIEU SAUMATRE; LAGUNE; ETUDE REGIONALE.
Ano: 1980 URL: http://www.documentation.ird.fr/hor/fdi:010023666
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Interaction of insect actomyosin with adenosine triphosphate National Institute of Agronomic Research
Maruyama, K..
Some physiocochemical observations were made on the interaction between actomyosin from honeybee thoracic muscle and adenosine triphosphate (ATP). ATP caused superprecipitation, viscosity drop, and light-scattering drop in insect actomyosin. On the other hand, actomyosin showed a powerful ATP-splitting enzyme action. The extent of these interactions of insect actomyosin with ATP was fairly coniparable with those of rabbit actomyosin. From the viewpoint of comparative biochemistry, these observations, in general, support the current theory that the ATP-actomyosin system is essential for muscular contraction.
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; MUSCLE; CONTRACTION; ACTOMYOSIN; ADENOSINE TRIPHOSPHATE; ATP; ABEILLE DOMESTIQUE; INSECTE SOCIAL; MUSCLE; CONTRACTION; ACTOMYOSINE; ADEOSINE TRIPHOSPHATASE.
Ano: 1958 URL: http://hdl.handle.net/2174/366
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L'adénosine triphosphate (ATP) dans le dôme de Guinée : distribution verticale et signification écologique IRD
Herbland, Alain; Pagès, Jean.
Tipo: Text Palavras-chave: ACTIVITE BIOLOGIQUE; ATP; REPARTITION VERTICALE; THERMOCLINE; ZOOPLANCTON; PHYTOPLANCTON; CHLOROPHYLLE; PHOSPHORE ORGANIQUE; CORRELATION SPATIALE.
Ano: 1975 URL: http://www.documentation.ird.fr/hor/fdi:19699
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Mécanismes régénérateurs d'ATP au cours des premières phases de la germination IRD
Raymond, P.; Hourmant, A.; Leblanc, Jean-Marc; Al-Ani, A.; Pradet, A..
Tipo: Text Palavras-chave: PHYSIOLOGIE VEGETALE; SEMENCE; GERMINATION; BIOCHIMIE; ATP; REGENERATION.
Ano: 1982 URL: http://www.documentation.ird.fr/hor/fdi:15798
Registros recuperados: 32
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