Cell Turgor
Mostrando 1-12 de 128 artigos, teses e dissertações.
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1. Elastic and Osmotic Adjustment of Talipariti elatum (Sw) Frixell Grown in Organic Substrates
ABSTRACT The aim of the present study was to evaluate the water response of Talipariti elatum cultivated in different substrates. Sugarcane straw, peat, biochar and mixtures of sugarcane straw and biochar, and peat and biochar were used. The physical properties of each substrate and the water parameters of the species were determined based on the pressure-v
Floresta Ambient.. Publicado em: 04/10/2018
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2. Physiological limitations in two sugarcane varieties under water suppression and after recovering
Increasing water scarcity and depleted water productivity in irrigated soils are inducing farmers to adopt improved varieties, such as those with high-capacity tolerance. The use of tolerant varieties of sugarcane might substantially avoid the decline of productivity under water deficit. This research aimed to evaluate the harmful effects of drought on the p
Theor. Exp. Plant Physiol.. Publicado em: 2013
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3. Desenvolvimentos mecânicos e computacionais de suporte às medidas com sensores termoelásticos
The hydrostatic pressure inside the cell or simply cell turgor is an important component of texture in vegetables and is directly related to firmness. The decrease in cell turgor of plant organs is also an indicator of loss of tissue water. This effect can be perceived visually by wilting accompanied by a dry appearance with the loss of brightness and color
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/08/2011
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4. Caracterização do período de instabilidade de órgãos vegetais submetidos à injúria mecânica
As injúrias mecânicas são a maior causa de perdas pós-colheita, uma vez que podem causar alterações metabólicas e fisiológicas em frutos e hortaliças. No entanto são escassos estudos que caracterizam o estado do tecido logo após a lesão e durante a reação do tecido lesionado, ao qual denominamos Período de Instabilidade (PI). Neste trabalho o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/06/2011
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5. Caracterização e possível papel da modulação oxidativa da parede celular em alterações na sensibilidade de células de tabaco cv. BY-2 a pH baixo durante a retomada do ciclo celular / Characterization and possible role of the oxidative modulation of the cell wall in changes in the sensitivity of tobacco BY-2 cells to low pH during restart of the cell cycle
A acidez do solo é um dos principais fatores limitantes à produção vegetal. Apesar da toxicidade por alumínio ter sido extensamente investigada, pouca atenção tem sido dada ao estresse causado pelo baixo pH em si. Existem diferenças marcantes entre células quanto à sensibilidade ao pH baixo que dependem do seu estado de crescimento e desenvolviment
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/01/2011
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6. Cell turgor evolution during storage of fresh-cut lettuce.
2009
INTERNATIONAL SYMPOSIUM ON HUMAN HEALTH EFFECTS OF FRUITS AND VEGETABLES. Publicado em: 2011
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7. Estresse osmótico e do retículo endoplasmático induzem morte celular programada de maneira dependente das proteínas NRPs / Osmotic- and ER-stress induce NRPs-dependent programed cell death
The identification of cell signaling pathways in response to different stresses and the interactions among these pathways have become major focus for understanding the molecular bases of plant cell-environment interactions. Recently, a novel integrative pathway between ER- and osmotic-stress has been described by our group. Among the target genes of the inte
Publicado em: 2007
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8. Regulation of Cell Division and Cell Enlargement by Turgor Pressure 1
Isolated radish (Raphanus sativus L., var. Red Prince) cotyledons were incubated in growth medium plus graded concentrations of mannitol (−1 to −16 bars) for 28 hours. At the end of the incubation period, turgor pressures were measured using thermocouple psychrometers. Cell division, as measured by DNA increase, was greatly stimulated by increasing turgo
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9. Interaction of Cell Turgor and Hormones on Sucrose Uptake in Isolated Phloem of Celery 1
Phloem tissue isolated from celery (Apium graveolens L.) was used to investigate the regulation of sucrose uptake by turgor (manipulated by 50-400 milliosomolal solutions of polyethylene glycol) and hormones indoleacetic acid (IAA) and gibberillic acid (GA3). Sucrose uptake was enhanced under low cellular turgor (increase in the Vmax). Furthermore, enhanceme
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10. Turgor-dependent Changes in Avena Coleoptile Cell Wall Composition
The effects of reduced turgor pressure on growth, as measured by cell elongation, and on auxin-mediated changes in cell walls, as measured by analyses of wall composition, were examined using Avena coleoptile segments. Although moderate (1-4 bar) decreases in turgor resulted in a progressive decline in growth proportional to the decrease in turgor, the major
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11. Dynamic Relation between Expansion and Cellular Turgor in Growing Grape (Vitis vinifera L.) Leaves 1
Measurements of the growth and water relations of expanding grape (Vitis vinifera L.) leaves have been used to determine the relationship between leaf expansion rate and leaf cell turgor. Direct measurement of turgor on the small (approximately 15 micrometer diameter) epidermal cells over the midvein of expanding grape leaves was made possible by improvement
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12. Turgor Regulation in Osmotically Stressed Arabidopsis Epidermal Root Cells. Direct Support for the Role of Inorganic Ion Uptake as Revealed by Concurrent Flux and Cell Turgor Measurements1
Hyperosmotic stress is known to significantly enhance net uptake of inorganic ions into plant cells. Direct evidence for cell turgor recovery via such a mechanism, however, is still lacking. In the present study, we performed concurrent measurements of net ion fluxes (with the noninvasive microelectrode ion flux estimation technique) and cell turgor changes
American Society of Plant Physiologists.