Compostos Nitrogenados, Proteínas e Aminoácidos em Milho sob Diferentes Níveis de Silício e Deficiência Hídrica

Souza, Luma Castro de; Siqueira, Jackeline Araújo Mota; Silva, Jonny Lucio de Sousa; Silva, Jaomara Nascimento da; Coelho, Carla Carolynne Resueno; Neves, Myriam Galvão; Neto, Cândido Ferreira de Oliveira; Lobato, Allan Klynger da Silva

doi:10.18512/1980-6477/rbms.v13n2p117-128

Cited by 10 publications

(13 citation statements)

References 14 publications

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“…These compounds are stresssensitive, particularly to water stress. Similar results were found by Souza et al (2014). Plants leaves that did not undergo water stress had higher aminoacids and protein contents when compared with plants receiving lower silicon application rates ( Table Figure 2.…”

Section: Variablesupporting

confidence: 81%

“…Silicon probably did not contribute to the formation of nitrogen compounds, proteins and amino acids in the leaves and roots of the forage sorghum plants. Souza et al (2014) worked with corn and showed similar results with reductions in total soluble proteins in roots and leaves atsilicon concentrations of 1.5 and 2.0 µM.…”

Section: Grouping Analysis Of Biochemical Compoundsmentioning

confidence: 57%

“…The control groups without water stress had higher nitrate levels in the leaves (0.46 μmol kg 1 ) and in the roots (0.58 μmol kg -1 ) ( Table 2). This occurred because nitrate-reductase activity decreases significantly in plants that are exposed to water stress as compared to plants that do not experience water stress (Souza et al, 2014). Under these conditions, carbohydrate, proline and sucrose levels are also lower (0.69 mmol g in the roots).…”

Section: Grouping Analysis Of Biochemical Compoundsmentioning

confidence: 99%

“…Under soil water-stress conditions, sorghum can stunt its growth or decrease its metabolic activity and later, when water conditions improve, it resumes growth at rates that may be higher than those of plants that have not undergone water stress (Amaral et al, 2003). Insufficient water is considered one of the greatest worldwide limitations to agriculture because of its impact on species growth and development (Batista et al, 2008) and consequent reductions in relative water content, nitrate-reductase activity, proteins, ammonium, tissue nitrate and increased concentrations of amino acids (Souza et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Application of multivariate analysis to evaluate the biochemical changes in sorghum (Sorghum bicolor L. Moench) after exposure to water stress and silicon applications

Luma¹,

Glauco²,

Risely³

et al. 2015

Afr. J. Biotechnol.

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The objective of the present work was to verify, through multivariate analysis, the behavior patterns of biochemical compounds in forage sorghum, submitted to different silicon applications and water stress. Experiment with forage sorghum (Sorghum bicolor L. Moench), variety BR 700, was conducted in a greenhouse. The experimental design was completely randomized in a 2×4 factorial arrangement with seven replicates, two hydric conditions (irrigated and water deficit) and four silicon applications (0.5, 1.0, 1.5 and 2.0 M). The multivariate analysis showed that when there is no shortage of water and regardless of the silicon dose, nitrate levels were higher and carbohydrate, proline and sucrose levels were lower in leaves and roots. The quantity of biochemical compounds differed between sorghum leaves and roots. This condition also varied according to the soil water stress. Silicon application in sorghum plants mitigates the negative effect of drought stress, favoring this crop cultivation in areas of low water availability. Nonetheless, differences between silicon doses were not observed in this experiment. Therefore, it is recommended that this chemical should be applied in drought-ridden areas.

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Section: Variablesupporting

confidence: 81%

Section: Grouping Analysis Of Biochemical Compoundsmentioning

confidence: 57%

Section: Grouping Analysis Of Biochemical Compoundsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Application of multivariate analysis to evaluate the biochemical changes in sorghum (Sorghum bicolor L. Moench) after exposure to water stress and silicon applications

Luma¹,

Glauco²,

Risely³

et al. 2015

Afr. J. Biotechnol.

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show abstract

“…The water stress affects the entire biochemical process of plant, and as a form of protection against water shortage, the plant changes its metabolic behavior such as the degradation of proteins into amino acids. Among these, proline is directly linked to the osmotic adjustment of leaf tissue cells (Souza et al, 2014).…”

Section: Total Soluble Protein Levels and Soluble Amino Acid Levelsmentioning

confidence: 99%

Physiological and biochemical metabolism in Jatoba plants (Hymenaea courbaril L.) affected by water stress and flooding

Cardoso¹,

Palheta²,

Sousa³

et al. 2017

Aust J Crop Sci

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The experiment was conducted in a completely randomized design in three water conditions at greenhouse with treatments as: control, water stress (water deficiency) and flooding (with a blade of water about 5 cm above the ground), and 15 repetitions. The analysis of variance was done and the 5% level of significance of the Tukey's test accomplished to assess the biochemical and physiological parameters of Hymenaea courbaril L. The variables were: water potential, nitrate reductase activity, concentration of nitrate, ammonium free, proline, glycine betaine, free protein, free amino acids, glutamine synthetase activity, alcohol dehydrogenase activity and lactate dehydrogenase and contents of chlorophyll a, b, and total carotene. There was a reduction of the enzyme reductase activity of nitrate and glutamine synthetase due to the water deficit and flooding. Moreover, the lack of water in leaf tissue caused an increase in proline, glycine betaine and free amino acids, trying to promote osmotic adjustment. An increase of variation and reduced ammonium, protein, chlorophyll a, b, and carotenoid was also observed. These substances were significantly reduced by the lack of water and also excess water. Thus, the water deficit and flooding promoted a drastic change in behavior and physiological biochemistry of Jatoba plants. The results of this study show that the flooding and water deficiency for 30 days are sufficient to promote changes in biochemical behavior in the Jatobá plants. Thus, these results indicate that the Hymenaea courbaril L. plants are less susceptible to flooding than to the water deficiency.

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Modulation of nitrogen metabolism of maize plants inoculated with Azospirillum brasilense and Herbaspirillum seropedicae

et al. 2018

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Compostos Nitrogenados, Proteínas e Aminoácidos em Milho sob Diferentes Níveis de Silício e Deficiência Hídrica

Cited by 10 publications

References 14 publications

Application of multivariate analysis to evaluate the biochemical changes in sorghum (Sorghum bicolor L. Moench) after exposure to water stress and silicon applications

Application of multivariate analysis to evaluate the biochemical changes in sorghum (Sorghum bicolor L. Moench) after exposure to water stress and silicon applications

Physiological and biochemical metabolism in Jatoba plants (Hymenaea courbaril L.) affected by water stress and flooding

Modulation of nitrogen metabolism of maize plants inoculated with Azospirillum brasilense and Herbaspirillum seropedicae

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