Sucrose Accumulation
Mostrando 25-36 de 380 artigos, teses e dissertações.
-
25. Analise funcional do regulador de transcrição do tipo bZIP AtbZIP9 de Arabidopsis thaliana atraves da superexpressão de seus genes alvos / Fucntional characterization of the Arabidopsis thaliana bZIP transcription factor AtbZIP9 by overexpression of its target genes
Transcriptional regulatory factors (TFs) play an important role in controlling growth and development of ali organisms. bZIPs TFs have been described in ali eukaryotes and are characterized by a basic aminoacid rich DNA binding domain and a leucine zipper, responsible for dimerization. bZIPs have been reported to act in several different plantspecific proces
Publicado em: 2007
-
26. Anatomia foliar de espécies de Flacourtiaceae (Sleumer 1980) / Foliar anatomy from species of Flacourtiaceae (Sleumer 1980)
There is no agreement regarding the taxonomic organization of the Flacourtiaceae and the theme is not emphasized in the literature, since there is a lack of taxonomic studies on this family. Several authors point out the close relationship between the families Flacourtiaceae and Salicaceae. Numerous families of plants have members with medicinal uses, standi
Publicado em: 2007
-
27. Sucrose metabolism in coffee fruit / Metabolismo da sacarose em frutos de cafe
Since coffee culture productivity is straightly connected to three basic production factors: climate, genetics and physiology, herein some aspects of the carbohydrates metabolism involved in the process of coffee grains filling through its development were analyzed. It is known the carbohydrates composition, mainly the polysaccharides composition of the coff
Publicado em: 2006
-
28. Nutritional efficiency of sugar cane cultivars / Eficiência nutricional de cultivares de cana-de-açúcar
This work aimed to determine the nutritional efficiency of sugar cane cultivars in the first two crop-growth cycles (plant and first-ratoon crops). Thus, biological utilization coefficient and apparent sucrose yield ha-1 (TPH) were evaluated. The experiment was set up on mid February 2003 in a clayey textured Red Yellow Argisol, and arranged in a randomized
Publicado em: 2006
-
29. Caracterização dos padrões de expressão de glucosiltransferases B e C, da proteina ligante de glucano B e de possiveis genes reguladores em genotipos distintos de Streptococcus mutans / Expression analysis of glucosyltransferases B and C, glucan-binding protein B and their putative regulatory genes in distinct genotypes of Streptococcus mutans
Streptococcus mutans, the main pathogen of dental caries, have the capacity to accumulate in the dental biofilm in the presence of sucrose, under highly acidic conditions that are responsible for teeth demineralization. The glucosyltransferases B (GtfB) and C (GtfC) produced by S. mutans are essential in this process, because catalyze the synthesis of water-
Publicado em: 2006
-
30. Study of the insecticide and pro-inflammatory activity of lectin isolated from annona coriacea mart seeds / Estudo da atividade inseticida e pro-inflamatoria da lectina isolada de sementes de Annona coriacea Mart
Lectins are a group of proteins and/or glycoproteins, which exhibit specific and reversible carbohydrate-binding activities. Studies have demonstrated that such proteins possess important biological activities including insecticide activity as well as immunological and physiological responses in animals. In this investigation, our aim was to compare the effe
Publicado em: 2006
-
31. Biorreator e luz natural na micropropagaÃÃo de abacaxizeiro / Bioreactors and natural light for pineapple micropropagation
Commercial micropropagation is a restricted alternative because of the high costs of plantlets produced by this system. The objective of the present study was to evaluate news technologies for pineapple micropropagation. Culture medium used was composed by MS salts (Murashige &Skoog, 1962), with sucrose 30 g.L-1, pH adjusted to 5.8 before autoclaving at 1210
Publicado em: 2006
-
32. Salt effect in growth and metabolism of Vigna unguiculata L. Walp and Vigna luteola (Jacq.) Benth / Efeito do sal no crescimento e metabolismo de Vigna unguiculata L. Walp e Vigna luteola (Jacq.) Benth
The excess of salt in the soil affects all the general metabolism of the plant causing physiologic and morphologic alterations. With the objective of evaluating the effects of salt in the growth and metabolism under saline stress, this study compares the responses of two Vigna species, with distinct sensitivity to salt, cultivated with the presence of NaCl i
Publicado em: 2005
-
33. Mobilização de xiloglucano de reserva em sementes de Hymenaea courbaril L
Some species of Leguminosae accumulate high amounts of polysaccharides in the seed. These polysaccharides are translocated to the embryo after the germination, being an important source of carbon and energy to the developing plantlet. Seeds of Hymenaea courbaril L. store up to 40% of the seed mass in the form of xyloglucan deposited in the walls of parenchym
Publicado em: 1997
-
34. Sucrose Synthase, Starch Accumulation, and Tomato Fruit Sink Strength.
Contrasting evidence has accumulated regarding the role of acid invertase and sucrose synthase in tomato fruit sink establishment and maintenance. In this work the relationships among the activities of sucrose synthase and acid invertase, Lycopersicon esculentum Mill cv UC-82B fruit growth, and starch accumulation were analyzed in fruit at 0 to 39 d after an
-
35. Phloem Loading of Sucrose: Involvement of Membrane ATPase and Proton Transport 1
p-Chloromercuribenzenesulfonic acid markedly inhibited sucrose accumulation into sugar beet source leaves without inhibiting hexose accumulation. The site of inhibition is proposed to be the plasmalemma ATPase, since the ATPase-mediated H+ efflux was completely inhibited by p-chloromercuribenzenesulfonic acid under conditions where intracellular metabolism,
-
36. Expression of Acid Invertase Gene Controls Sugar Composition in Tomato (Lycopersicon) Fruit.
A wild tomato species, Lycopersicon chmielewskii, accumulates high levels of soluble sugar in mature fruit and, unlike the domesticated tomato species, Lycopersicon esculentum, accumulates sucrose rather than glucose and fructose. Genetic and biochemical analyses of progeny resulting from a cross of L. chmielewskii with L. esculentum have previously indicate