Na And K Partitioning
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Contribution of corn intercropped with Brachiaria species to nutrient cycling1
RESUMO A dinâmica de biomassa e nutrientes do milho pode ser alterada quando consorciado com Brachiaria (syn. Urochloa spp.). Objetivou-se investigar a dinâmica de biomassa, nitrogênio (N), fósforo (P) e potássio (K) para sistemas de produção de milho consorciado com espécies de Brachiaria. Campos experimentais foram conduzidos durante a safra e safr
Pesqui. Agropecu. Trop.. Publicado em: 26/09/2019
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2. Influence of salts on the coexistence curve and protein partitioning in nonionic aqueous two-phase micellar systems
Aqueous two-phase micellar systems (ATPMS) can be exploited in separation science for the extraction/purification of desired biomolecules. Prior to phase separation the surfactant solution reaches a cloud point temperature, which is influenced by the presence of electrolytes. In this work, we provide an investigation on the cloud point behavior of the nonion
Braz. J. Chem. Eng.. Publicado em: 2014-12
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3. Composição e partição de nicho em gradientes de solo e luz no Cerrado / Composition and niche partitioning in relation to soil and light gradients in Cerrado
O Cerrado se distribui sob fitofisionomias que variam de campos abertos com arbustos dispersos a fisionomias de mata fechada, em um gradiente crescente de fertilidade e de decrescente acidez do solo. Considerando que é esperada a maior similaridade entre áreas de condições estruturais e de solo semelhantes, este estudo foi realizado em cinco fitofisionom
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/02/2011
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4. Aspects of spatial pattern, habitat association and herbivory density-dependent of Calophyllum brasiliense Camb. (Clusiaceae) in restinga alta florest, Ilha do Cardoso, Cananéia. SP. Brazil / Aspectos da distribuição espacial, associação com hábitat e herbivoria dependente da densidade de Calophyllum brasiliense Camb. (Clusiaceae) em restinga alta na Ilha do Cardoso, Cananéia, SP, Brasil
Several theories, including different factors and mechanisms, have been postulated to explain the high tree species coexistence in tropics, which remains an unsolved question that continues to pose a challenge to plant ecologists. Population-level tree dynamics studies contribute to a better understanding of the processes acting on community-level. The aim o
Publicado em: 2009
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5. TRANSPORTE E HOMEOSTASE Na+/K+ SOB CONDIÃÃES DE SODICIDADE EM FEIJÃO CAUPI / Na+ and K+ transport and homeostasis under sodicity conditions in cowpea
High soil salinity can be associated with K+ starvation enabling interactive stresses on plant nutrition that impair crop production. The transport mechanisms on the soil-root symplast-xylem boundaries are crucial to the establishment of Na+ toxicity under salt stress, especially under low K+ availability. Then, the aim of this work was the physiological cha
Publicado em: 2008
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6. ANÃLISE DA TOLERÃNCIA Ã SALINIDADE EM PLANTAS DE SORGO, FEIJÃO-DE-CORDA E ALGODÃO / ANALYSIS OF SALINITY TOLERANCE IN SORGHUM, BEANS AND COTTON.
The objective of this paper was to evaluate ions concentration and some morphophysiological parameters associates to the salt tolerance in sorghum, cowpea, and cotton plants. Plants were cultivated in plastic pots, using 15 kg of sand soil at greenhouse conditions and subjected to three different salt concentrations (0.5; 4.0; and 8.0 dS.m-1) in irrigation w
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/02/2007
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7. Estudo das forças motrizes que regem a partição dos complexos [Fe(CN)5NO]2- e [Cr(CN)5NO]3- em SABs formados por poli(óxido de etileno) e sulfatos / Study of drivig forces partitioning behavior [Fe(CN)5NO]2- and [Cr(CN)5NO]3- complexes in Poli(ethylene oxide) and sulphates ATPS
In this dissertation a critical analysis in the area of partitioning ions in aqueous two phase systems (ATPS) was done, exposing some models that explain the distribution of those molecules in the phases. In a second study, data of phase diagram formed by poly (ethylene oxide) of molar mass 4000 g mol-1 (PEO 4000) and sulphate zinc at 298 K was obtained. It
Publicado em: 2006
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8. Interactions of Rubidium, Sodium, and Potassium on the Nutrition of Sugar Beet Plants
The effect of Rb on the growth and the development of sugar beet plants (Beta vulgaris, var. MS NB1 × NB4) depends on the Rb concentration, the K supply, and the relative abundance of Na. Rubidium added either to a low or high K solution with or without added Na increased leaf blade size greatly, possibly through an effect on phytohormones or through a “p
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9. Sodium and Potassium Compartmentation and Transport across the Roots of Intact Spergularia marina1
The Na+ and K+ transport characteristics of Spergularia marina (L.) Griseb. were considered in order to compare the systems by which these two physiologically different cations are managed during initial acquisition and subsequent partitioning in midvegetative plants. Uptake of 22Na+ and 42K+ and redistribution of labels in pulse-chase studies were compared
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10. The ACA4 Gene of Arabidopsis Encodes a Vacuolar Membrane Calcium Pump That Improves Salt Tolerance in Yeast1
Several lines of evidence suggest that regulation of intracellular Ca2+ levels is crucial for adaptation of plants to environmental stress. We have cloned and characterized Arabidopsis auto-inhibited Ca2+-ATPase, isoform 4 (ACA4), a calmodulin-regulated Ca2+-ATPase. Confocal laser scanning data of a green fluorescent protein-tagged version of ACA4 as we
American Society of Plant Physiologists.
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11. Case-mix adjustment using objective measures of severity: the case for laboratory data.
OBJECTIVE. We evaluate the use of routinely gathered laboratory data to subclassify surgical and nonsurgical major diagnostic categories into groups homogeneous with respect to length of stay (LOS). DATA SOURCES AND STUDY SETTING. The source of data is the Combined Patient Experience database (COPE), created by merging data from computerized sources at the U
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12. Partitioning of Tissue Expression Accompanies Multiple Duplications of the Na+/K+ ATPase α Subunit Gene
Vertebrate genomes contain multiple copies of related genes that arose through gene duplication. In the past it has been proposed that these duplicated genes were retained because of acquisition of novel beneficial functions. A more recent model, the duplication-degeneration-complementation hypothesis (DDC), posits that the functions of a single gene may bec
Cold Spring Harbor Laboratory Press.