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| Registros recuperados: 15 | |
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| Poiré, R.; Wiese-Klinkenberg, A.; Parent, B.; Mielewczik, M.; Schurr, U.; Tardieu, F.; Walter, A.. |
| Diel (24 h) leaf growth patterns were differently affected by temperature variations and the circadian clock in several plant species. In the monocotyledon Zea mays, leaf elongation rate closely followed changes in temperature. In the dicotyledons Nicotiana tabacum, Ricinus communis, and Flaveria bidentis, the effect of temperature regimes was less obvious and leaf growth exhibited a clear circadian oscillation.These differences were related neither to primary metabolism nor to altered carbohydrate availability for growth. The effect of endogenous rhythms on leaf growth was analysed under continuous light in Arabidopsis thaliana, Ricinus communis, Zea mays, and Oryza sativa. No rythmic growth was observed under continuous light in the two monocotyledons,... |
| Tipo: Journal Article |
Palavras-chave: CIRCADIAN CLOCK; ELONGATION; EXPANSION; IMAGE ANALYSIS; PHOTOSYNTHESIS; STARCH; SUCROSE. |
| Ano: 2010 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010bb27130c&uri=/notices/prodinra1/2010/08/ |
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| Eiden, M.; van der Linden, S.; Schween, J.H.; Gerbig, C.; Neininger, B.; Brunet, Y.; Jarosz, N.; Traullé, O.; Geiss, H.; Rascher, U.. |
| The Carbo Europe Regional Experiment Strategy (CERES), conducted between May and June 2005, aims to determine a spatiallyresolved regional balance of carbon dioxide fluxes using different methodological approaches bundled within an internationalframework. In this study we elucidated several meteorological and physiological parameters determining plant mediated exchangeprocesses using airborne hyperspectral reflectance measurements in synopsis with meteorological information like eddy fluxcovariance data. We used an airborne hyperspectral system to record spatial and temporal transects of vegetated areas surroundingflux tower sites in the Bordeaux / Landes Region (France). Alongside hyperspectral measurements a comprehensive range ofmeteorological and... |
| Tipo: Conference Proceedings |
Palavras-chave: REMOTE SENSING; CERES; VEGETATION; PHOTOSYNTHESIS; EDDY COVARIANCE; HYPERSPECTRAL REFLECTANCE; CHLOROPHYLL FLUORESCENCE; CANOPY PHOTOSYNTHESIS. |
| Ano: 2007 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2009b05f19d6&uri=/notices/prodinra1/2011/05/ |
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| Thuswaldner, S.; Lagerstedt, J.O.; Rojas-Stütz, M.; Bouhidel, K.; Der, C.; Leborgne-Castel, N.; Mishra, A.; Marty, F.; Schoefs, B.; Adamska, I.; Persson, B. L.; Spetea, C.. |
| In plants the chloroplast thylakoid membrane is the site of lightdependent photosynthetic reactions coupled to ATP synthesis.The ability of the plant cell to build and alter this membrane system is essential for efficient photosynthesis. A nucleotide translocator homologous to the bovine mitochondrial ADP/ATPcarrier (AAC) was previously found in spinach thylakoids. Here we have identified and characterized a thylakoid ATP/ADP carrier (TAAC) from Arabidopsis. (i) Sequence homology with the bovine AAC and the prediction of chloroplast transit peptides indicated a putative carrier encoded by the At5g01500 gene, as a TAAC. (ii) Transiently expressed TAAC-green fluorescent protein fusion construct was targeted to the chloroplast. Western blotting using a... |
| Tipo: Journal Article |
Palavras-chave: ARABIDOPSIS; ADENOSINE TRIPHOSPHATE / ADENOSINE DIPHOSPHATE; CHLOROPLAST; THYLAKOID; THYLAKOID ADENOSINE TRIPHOSPHATE / ADENOSINE DIPHOSPHATE CARRIER; PHOTOSYNTHESIS; THYLAKOID LUMEN. |
| Ano: 2007 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008da71603e&uri=/notices/prodinra1/2011/05/ |
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| Parent, B.; Turc, O.; Gibon, Y.; Tardieu, F.. |
| Temperature fluctuates rapidly and affects all developmental and metabolic processes. This often obscures the effects of developmental trends or of other environmental conditions when temperature fluctuates naturally. A method is proposed for modelling temperature-compensated rates, based on the coordination of temperature responses of developmental processes. In a data set comprising 41 experiments in the greenhouse, growth chamber, or the field, the temperature responses in the range of 6-36 degrees C for different processes were compared in three species, maize, rice, and Arabidopsis thaliana. Germination, cell division, expansive growth rate, leaf initiation, and phenology showed coordinated temperature responses and followed common laws within each... |
| Tipo: Journal Article |
Palavras-chave: DEVELOPMENT; ENZYME; GROWTH; MODELLING; PHOTOSYNTHESIS; TEMPERATURE; THERMAL TIME. |
| Ano: 2010 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD201063708b64&uri=/notices/prodinra1/2010/08/ |
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| Lejay, L.; Wirth, J.; Pervent, M.; Cross, J.M.F.; Tillard, P.; Gojon, A.. |
| Root ion transport systems are regulated by light and/or sugars, but the signaling mechanisms are unknown. We showed previously that induction of the NRT2.1 NO(3)(-) transporter gene by sugars was dependent on carbon metabolism downstream hexokinase (HXK) in glycolysis. To gain further insights on this signaling pathway and to explore more systematically the mechanisms coordinating root nutrient uptake with photosynthesis, we studied the regulation of 19 light-/sugar-induced ion transporter genes. A combination of sugar, sugar analogs, light, and CO(2) treatments provided evidence that these genes are not regulated by a common mechanism and unraveled at least four different signaling pathways involved: regulation by light per se, by HXK-dependent sugar... |
| Tipo: Journal Article |
Palavras-chave: SUGAR REGULATION; ROOT ION TRANSPORT; PHOTOSYNTHESIS; HEXOKINASE; ROOT NITROGEN. |
| Ano: 2008 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200817f0baa3&uri=/notices/prodinra1/2008/08/ |
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| Regnard, J.L.; Segura, V.; Merveille, N.; Durel, C.E.; Costes, E.. |
| The capacity of the apple tree to tolerate temporary abiotic constraints was investigated through leaf responses to different vapor pressure deficits (VPD). A ‘Starkrimson’ x ‘Granny Smith’ F1 progeny of 125 full-sibs whip-grafted onto Pajam® 2 rootstocks and pot-cultivated was studied (three replicates). After two months, plants were transferred into a controlled environment chamber ensuring five increasing VPDs, from 0.7 to 2.7 kPa, other conditions remaining constant. Leaf stomatal conductance (gsw), net CO2 assimilation (An) and transpiration (E) rates were measured, and water use efficiency (WUE, An/E) computed. The leaf responses were analyzed through a linear model including genotype as random effect for each VPD level separately. Whatever the VPD,... |
| Tipo: Conference Paper |
Palavras-chave: HERITABILITE; PLASTICITE; CONDUCTANCE STOMATIQUE; STOMATE ABIOTIC STRESS; HERITABILITY; MALUS X DOMESTICA; PLASTICITY; QUANTITATIVE TRAIT LOCI; PHOTOSYNTHESIS; STOMATA; TRANSPIRATION; WATER USE EFFICIENCY. |
| Ano: 2009 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20091f202fdc&uri=/notices/prodinra1/2010/03/ |
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| Chibani, K.; Couturier, J.; Selles, B.; Jacquot, J.P.; Rouhier, N.. |
| The post-translational modification consisting in the formation/reduction of disulfide bonds has been the subject of intense research in plants since the discovery in the 1970s that many chloroplastic enzymes are regulated by light through dithiol–disulfide exchange reactions catalyzed by oxidoreductases called thioredoxins (Trxs). Further biochemical and proteomic studies have considerably increased the number of target enzymes and processes regulated by these mechanisms in many sub-cellular compartments. Recently, glutathionylation, a modification consisting in the reversible formation of a glutathione adduct on cysteine residues, was proposed as an alternative redox regulation mechanism. Glutaredoxins (Grxs), proteins related to Trxs, are efficient... |
| Tipo: Journal Article |
Palavras-chave: NADP-MALATE DEHYDROGENASE; METHIONINE SULFOXIDE REDUCTASE; FERREDOXIN-THIOREDOXIN REDUCTASE; GENOME-WIDE ANALYSIS; IRON-SULFUR PROTEIN; ARABIDOPSIS-THALIANA; CHLAMYDOMONAS-REINHARDTII; OXIDATIVE STRESS; GLUTATHIONE-PEROXIDASE; PHOTOOXIDATIVE STRESS; CHLOROPLAST; GLUTAREDOXIN; PHOTOSYNTHESIS; STRESS; THIOREDOXIN. |
| Ano: 2010 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010751aa923&uri=/notices/prodinra1/2010/10/ |
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| Registros recuperados: 15 | |
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