Publications by authors named "R Payet"
Article Synopsis
- Dimethylsulfoniopropionate (DMSP) is an important organosulfur compound involved in stress protection and the cycling of carbon and sulfur, while also contributing to climate-active gases.
- Saltmarshes, particularly those with Spartina cordgrasses, are key areas for DMSP production, with Spartina anglica showing exceptionally high levels due to specific plant genes.
- The study identifies critical enzymes for DMSP synthesis in Spartina anglica and suggests that increasing DMSP levels can enhance plant resistance to salinity and drought, paving the way for potential bioengineering applications in sustainable agriculture.
Article Synopsis
- DMSP is a key organosulfur compound found abundantly in nature, playing essential roles in stress tolerance, carbon and sulfur cycling, and climate-related gas production.
- * Marine organisms, both prokaryotic and eukaryotic, can produce and metabolize DMSP through multiple biochemical pathways, involving various enzymes that showcase the diversity of DMSP cycling.
- * Recent advancements in biochemistry and structural biology have enhanced our understanding of the enzymes involved in DMSP synthesis and metabolism, revealing important insights and ongoing challenges that require further research.
Steroidal alkaloids are FDA-approved drugs (e.g., Zytiga) and promising drug candidates/leads (e.
View Article and Find Full Text PDFWe assumed that miRNAs might regulate the physiological and biochemical processes in plants through their effects on the redox system and phytohormones. To check this hypothesis, the transcriptome profile of wild-type Arabidopsis and lines with decreased ascorbate (Asc), glutathione (GSH), or salicylate (Sal) levels were compared. GSH deficiency did not influence the miRNA expression, whereas lower levels of Asc and Sal reduced the accumulation of 9 and 44 miRNAs, respectively, but only four miRNAs were upregulated.
View Article and Find Full Text PDFTowards a surface metric to measure the dustiness of nanomaterial powders.
Environ Sci Process Impacts
March 2023
Article Synopsis
- - The study emphasizes the growing importance of dustiness methods in evaluating worker exposure to nanomaterials, suggesting that current European standards focus too much on mass-based dustiness indices while overlooking the significance of surface area.
- - The researchers propose a new methodology that ties the external specific surface area of nanomaterials to their aerosolized form, demonstrating this equivalence across five different industrially used nanomaterials.
- - By introducing a surface-based dustiness index, the study argues that this approach is more precise and could reshape how powders are ranked for toxicity, potentially influencing workplace safety standards in the future.