Publications by authors named "V Herve"
Iron is a vital micronutrient for nearly all microorganisms, serving as a co-factor in critical metabolic pathways. However, cheese is an iron-restricted environment. Furthermore, it has been demonstrated that iron represents a growth-limiting factor for many microorganisms involved in cheese ripening and that this element is central to many microbial interactions occurring in this ecosystem.
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- Anatomical 3D-printed nasal casts are important for studying how drugs are delivered inside the nose and provide unique preclinical data not available from animal studies.
- The study analyzed CT scans from 98 patients, revealing anatomical differences in the nasal cavity and identifying three distinct nasal geometry groups, leading to the creation of representative 3D models.
- The research demonstrated that these anatomical variations significantly impact how well different medical devices deliver drugs, especially with nasal sprays and nebulizers, highlighting the need for diverse models to assess drug effectiveness in different populations.
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- The study explores the differences in gut microbiota and fiber digestion between lower termites (LT), which have cellulolytic flagellates, and higher termites (HT), which do not.
- It identifies specific bacterial lineages responsible for fiber breakdown, revealing that Bacteroidota and Spirochaetota dominate the lignocellulolytic activity in LT, while Fibrobacterota and Spirochaetota take over in HT.
- The findings highlight the importance of oxygen in the breakdown of cellulose and lignin in termite guts, suggesting a more complex symbiotic relationship than previously understood.
Recent metagenomic studies have identified numerous lineages of hydrogen-dependent, obligately methyl-reducing methanogens. Yet, only a few representatives have been isolated in pure culture. Here, we describe six new species with this capability in the family Methanosarcinaceae (order Methanosarcinales), which makes up a substantial fraction of the methanogenic community in arthropod guts.
View Article and Find Full Text PDFBacterial endosymbionts of eukaryotic hosts typically experience massive genome reduction, but the underlying evolutionary processes are often obscured by the lack of free-living relatives. Endomicrobia, a family-level lineage of host-associated bacteria in the phylum that comprises both free-living representatives and endosymbionts of termite gut flagellates, are an excellent model to study evolution of intracellular symbionts. We reconstructed 67 metagenome-assembled genomes (MAGs) of among more than 1,700 MAGs from the gut microbiota of a wide range of termites.
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