Publications by authors named "J Marquis"
Article Synopsis
- The study analyzes the properties of convective cells and their effects on different types of rainfall during a 3.5-month evaluation period in central Argentina, using data from the RELAMPAGO-CACTI field campaign.
- The simulation shows a significant discrepancy in rainfall predictions, particularly underestimating stratiform rainfall by 46% and overestimating convective rainfall by 43%, linked to an excessive number of generated precipitating convective cells.
- Despite attempts to enhance simulation accuracy by changing model resolution, the results indicate that simply increasing resolution is not enough; other factors also play a crucial role in improving predictions of convective properties.
The cell cycle-regulated DNA methyltransferase CcrM is conserved in most Alphaproteobacteria, but its role in bacteria with complex or multicentric genomes remains unexplored. Here, we compare the methylome, the transcriptome and the phenotypes of wild-type and CcrM-depleted Agrobacterium tumefaciens cells with a dicentric chromosome with two essential replication origins. We find that DNA methylation has a pleiotropic impact on motility, biofilm formation and viability.
View Article and Find Full Text PDFOur recent randomized, placebo-controlled study in Irritable Bowel Syndrome (IBS) patients with diarrhea or alternating bowel habits showed that the probiotic (BL) NCC3001 improves depression scores and decreases brain emotional reactivity. However, the involved metabolic pathways remain unclear. This analysis aimed to investigate the biochemical pathways underlying the beneficial effects of BL NCC3001 using metabolomic profiling.
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- - Neutrophils play a crucial role in fighting infections, but their function in drug-resistant infections, like leishmaniasis, is not well understood.
- - Research shows that drug-resistant parasites change the expression of certain neutrophil genes, increasing detoxification processes and reducing cytokine production, particularly impacting a chemokine called CCL3.
- - Reduced CCL3 levels hinder neutrophils’ ability to recruit other immune cells, which was confirmed in mouse models, highlighting how drug-resistant parasites can alter immune responses in infected skin.
Environmental pseudomonads colonize various niches including insect and plant environments. When invading these environments, bacteria are confronted with the resident microbiota. To oppose with closely related strains, they rely on narrow-spectrum weaponry such as tailocins, i.
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