Publications by authors named "H Peter"
Diversity of lake bacteria promotes human echovirus inactivation.
Appl Environ Microbiol
January 2025
Human enteric viruses can remain infective in surface waters for extended periods of time, posing a public health risk. Microbial activity contributes to the inactivation of waterborne enteric viruses, but while individual bacteria-virus interactions have been characterized, the importance of microbial diversity remains unknown. Here, we experimentally manipulated the diversity of bacterial communities from Lake Geneva across three seasons using a dilution-to-extinction approach and monitored the inactivation and genome decay of echovirus 11, a member of the genus.
View Article and Find Full Text PDFAnxiety and depression disorders show high prevalence rates, and stress is a significant risk factor for both. However, studies investigating the interplay between anxiety, depression, and stress regulation in the brain are scarce. The present manuscript included 124 law students from the LawSTRESS project.
View Article and Find Full Text PDFArticle Synopsis
- Glacier-fed streams (GFS) are extreme aquatic ecosystems with little nutrients and fluctuating environments, where microorganisms predominantly form biofilms.
- Researchers analyzed 156 metagenomes from various mountain ranges, revealing thousands of metagenome-assembled genomes (MAGs) of prokaryotes, algae, fungi, and viruses that demonstrate complex biotic interactions in these biofilms.
- The study found that as glaciers shrink, biofilms transition from using inorganic energy sources to relying more on heterotrophy as algal biomass increases, highlighting the adaptability of microbial life in these unique ecosystems amid climate change.
Unlabelled: Glacier-fed streams are permanently cold, ultra-oligotrophic, and physically unstable environments, yet microbial life thrives in benthic biofilm communities. Within biofilms, microorganisms rely on secondary metabolites for communication and competition. However, the diversity and genetic potential of secondary metabolites in glacier-fed stream biofilms remain poorly understood.
View Article and Find Full Text PDFArticle Synopsis
- The rapid melting of mountain glaciers, a sign of climate change, threatens unique ecosystems known as glacier-fed streams (GFSs), which are primarily dominated by microbial life.
- Using advanced techniques like metabarcoding and metagenomics, researchers conducted a detailed study of the bacterial microbiome in 152 GFSs across major mountain ranges, revealing distinct taxonomic and functional differences compared to other cryospheric microbiomes.
- The findings highlight the importance of geographic isolation and environmental factors in shaping bacterial diversity, underscoring the urgent need for further research due to the risks posed by climate change to this unique ecosystem.