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Solute transport across plant cell membranes
Conde, Artur; Martins, Viviana; Noronha, Henrique; Conde, Carlos Alberto da Silva; Fontes, N.; Gerós, H.CanaBQ is a Journal of the Portuguese Biochemical Society (http://canalbq.spb.pt/index.html) ; The transport of solutes across cell membranes, including organic nutrients, such as sugar, osmolytes, ions or metabolic waste products, is of extreme importance in all living systems. Up to 14% of the genome of all organisms represents information for transport proteins, which reflects the importance of such process...
Mannitol transport and oxidation are synchronized in Olea europaea under salt a...
Conde, Artur; Silva, Paulo; Agasse, A.; Conde, Carlos; Gerós, H.The intracellular accumulation of organic compatible solutes acting as osmoprotectants, such as polyols, is an essential response mechanism of several plants to drought and salinity. In Olea europaea a mannitol transport system (OeMaT1) has been previously characterised as a key player in plant response to salinity, and here, heterotrophic sink models, such as olive suspension-cultured cells and fruit tissues, ...
Mannitol transport and mannitol dehydrogenase activities are coordinated in ole...
Conde, Artur; Silva, Paulo; Agasse, A.; Conde, Carlos; Gerós, H.This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Plant and Cell Physiology following peer review. The definitive publisher-authenticated version is available online at http://pcp.oxfordjournals.org/cgi/content/abstract/pcr121? ijkey=6orgUM5fkIjedYn&keytype=ref ; The intracellular accumulation of organic compatible solutes functioning as osmoprotectants, such as polyols,...
Dual-Cathode CsI Covered Microstrip Plate as VUV High Efficiency Photosensor
Freitas, Diogo S. A. P.; Silva, Rui M. Curado da; Mendes, Nuno F. C.; Conde, Carlos A. N.A Gas Proportional Scintillation Counter based on a dual-cathode Microstrip Plate covered with a CsI film is described. This new dual-cathode technique has the advantage of increasing the VUV sensitive area of the Microstrip Plate. A detailed description of the technique is presented together with a discussion of the performance. The results obtained for a xenon filled Gas Proportional Scintillation Counter sho...
Pathways of glucose regulation of monosaccharide transport in grape cells
Conde, Carlos; Agasse, A.; Glissant, David; Tavares, R. M.; Gerós, H.; Delrot, SergeGrape (Vitis vinifera) heterotrophic suspension-cultured cells were used as a model system to study glucose (Glc) transport and its regulation. Cells transported D-[14C]Glc according to simple Michaelis-Menten kinetics superimposed on first-order kinetics. The saturating component is a high-affinity, broad-specificity H+-dependent transport system (Km = 0.05 mM). Glc concentration in the medium tightly regulate...
Effects of emotional reactivity on inhibitory avoidance in the elevated T-maze
Conde, Carlos; Costa, Victor Roberto Serranoni da; Tomaz, Carlos Alberto BezerraABSTRACT ; The possibility of the presence of inter-individual emotional differences and the memory performance of rats was examined in the elevated T-maze. Two kinds of aversively motivated behaviors, inhibitory avoidance and escape learning, were measured. Based on the number of trials to achieve a learning criterion, rats were divided into two subgroups with either low or high avoidance reactivity (LAR or...
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