Publications by authors named "X Dumont"
In the course of their growth and development, plants have to constantly perceive and react to their environment. This is achieved in cells by the coordination of complex combinatorial signaling networks. However, how signal integration and specificity are achieved in this context is unknown.
View Article and Find Full Text PDFPhysiological acclimation of plants to an everchanging environment is governed by complex combinatorial signaling networks that perceive and transduce various abiotic and biotic stimuli. Reactive oxygen species (ROS) serve as one of the second messengers in plant responses to hyperosmotic stress. The molecular bases of ROS production and the primary cellular processes that they target were investigated in the Arabidopsis () root.
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- Continuous exercise (CE) leads to greater ventilation compared to intermittent exercise (IE), which could impact airway health.
- A study with 16 young adults showed that CE at 70% of maximum work rate resulted in mild airway damage, as indicated by changes in serum markers like CC16 and SP-D.
- In contrast, IE did not cause significant airway damage, suggesting that the intensity and sustained ventilation during CE are key factors in airway epithelial cell damage.
Building a proton gradient across a biological membrane and between different tissues is a matter of great importance for plant development and nutrition. To gain a better understanding of proton distribution in the plant root apoplast as well as across the plasma membrane, we generated plants expressing stable membrane-anchored ratiometric fluorescent sensors based on pHluorin. These sensors enabled noninvasive pH-specific measurements in mature root cells from the medium-epidermis interface up to the inner cell layers that lie beyond the Casparian strip.
View Article and Find Full Text PDFBackground: Recent studies in children have reported associations of urinary cadmium (U-Cd), used as biomarker of Cd body burden, with renal dysfunction, retarded growth and impaired cognitive development in children. Little is known, however, about factors influencing U-Cd in children and likely to act as confounders.
Methods: In a cross-sectional study involving 249 schoolchildren (mean age, 5.