Listar por tema "Ammonium"
Mostrando ítems 1-15 de 15
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Amine oxidases in the oxidative pathway of polyamines in Medicago truncatula grown under different nitrogen sources
Crop productivity relies heavily on fertilization. However, the augmented use of fertilizers by industrial farming results in an over-accumulation of nutrients in the soil, which induces nutritional stresses. The utilization ... -
Both free indole-3-acetic acid and photosynthetic performance are important players in the response of Medicago truncatula to urea and ammonium nutrition under axenic conditions
We aimed to identify the early stress response and plant performance of Medicago truncatula growing in axenic medium with ammonium or urea as the sole source of nitrogen, with respect to nitrate-based nutrition. Biomass ... -
Can ammonium stress be positive for plant performance?
In this article, we propose a change of paradigm where ammonium nutrition may be considered not exclusively as an undesirable situation for plant performance, but as a way to provoke changes in plant metabolism that can ... -
Efectos inmediatos y a corto plazo de una quema prescrita en las propiedades de un suelo de montaña atlántica
(2019) Trabajo Fin de Máster/Master Amaierako LanaLa matorralización de los pastos de montaña es una problemática actual que deriva en la pérdida de paisajes abiertos, disminución de biodiversidad y aumento de riesgo de incendios en espacios naturales. ... -
Elevated CO2 improved the growth of a double nitrate reductase defective mutant of Arabidopsis thaliana: the importance of maintaining a high energy status
Impairments in leaf nitrogen (N) assimilation in C3 plants have been identified as processes conditioning photosynthesis under elevated [CO2], especially when N is supplied as nitrate. Leaf N status is usually improved ... -
Estudio de los efectos inmediatos de una quema prescrita en un pasto matorralizado del Pirineo Navarro sobre el ciclo del nitrógeno edáfico
(2019) Trabajo Fin de Grado/Gradu Amaierako LanaAnte el cambio global (cambio climático, despoblación rural, cambio en los sistemas productivos...) los pastos de montaña están sufriendo un proceso de matorralización que conlleva una ... -
IAOx induces the SUR phenotype and differential signalling from IAA under different types of nitrogen nutrition in Medicago truncatula roots
Indole-3-acetaldoxime (IAOx) is a particularly relevant molecule as an intermediate in the pathway for tryptophan-dependent auxin biosynthesis. The role of IAOx in growth-signalling and root phenotype is poorly studied in ... -
Leaves play a central role in the adaptation of nitrogen and sulfur metabolism to ammonium nutrition in oilseed rape (Brassica napus)
Background: The coordination between nitrogen (N) and sulfur (S) assimilation is required to suitably provide plants with organic compounds essential for their development and growth. The N source induces the adaptation of ... -
Mechanisms of ammonium toxicity and the quest for tolerance
Ammonium sensitivity of plants is a worldwide problem, constraining crop production. Prolonged application of ammonium as the sole nitrogen source may result in physiological and morphological disorders that lead to decreased ... -
Nitrogen isotope signature evidences ammonium deprotonation as a common transport mechanism for the AMT-Mep-Rh protein superfamily
Ammonium is an important nitrogen (N) source for living organisms, a key metabolite for pH control, and a potent cytotoxic compound. Ammonium is transported by the widespread AMT-Mep-Rh membrane proteins, and despite their ... -
Optimización de nutrición nitrogenada en hortícolas de hoja crecidas en sistema de hidroponía pura NGS*: ajustes de nutrición mineral a lo largo del ciclo de producción
(2022) Trabajo Fin de Grado/Gradu Amaierako LanaLa fertilización nítrica provoca altos niveles de nitrato en hortalizas de hoja. A nivel internacional se ha sugerido que su consumo sea la parte mayoritaria de nuestras dietas, pero la elevada exposición a nitratos puede ... -
The proteome of Medicago truncatula in response to ammonium and urea nutrition reveals the role of membrane proteins and enzymes of root lignification
Plants differ widely in their growth and tolerance responses to ammonium and urea nutrition, while derived phenotypes seem markedly different from plants grown under nitrate supply. Plant responses to N sources are complex, ... -
Quantitative proteomics reveals the importance of nitrogen source to control glucosinolate metabolism in Arabidopsis thaliana and Brassica oleracea
Accessing different nitrogen (N) sources involves a profound adaptation of plant metabolism. In this study, a quantitative proteomic approach was used to further understand how the model plant Arabidopsis thaliana adjusts ... -
Soil moisture modulates biological nitrification inhibitors release in sorghum plants
Background and aims: Sorghum (Sorghum bicolor) is able to exude allelochemicals with biological nitrifcation inhibition (BNI) capacity. Therefore, sorghum might be an option as cover crop since its BNI ability may reduce ... -
Utilización del ion cloruro en hortalizas de hoja para minimizar su contenido en nitrato
(2021) Trabajo Fin de Máster/Master Amaierako LanaEl nitrógeno es un nutriente esencial para las plantas de limitada disponibilidad en el suelo para ser absorbido por las raíces. Por tanto, su aplicación como fertilizante es fundamental para la agricultura actual. El ...