A5002952371- Microbial Community Ecology and Physiology
- Genomics and Phylogenetic Studies
- Soil Carbon and Nitrogen Dynamics
- Gut microbiota and health
- Protist diversity and phylogeny
- Peatlands and Wetlands Ecology
- Bacteriophages and microbial interactions
- Polar Research and Ecology
- Botany and Plant Ecology Studies
- Atmospheric and Environmental Gas Dynamics
- Synthetic Organic Chemistry Methods
- Marine Sponges and Natural Products
- Wastewater Treatment and Nitrogen Removal
- Nematode management and characterization studies
- Coral and Marine Ecosystems Studies
- Peroxisome Proliferator-Activated Receptors
- Biochemical Analysis and Sensing Techniques
- Isotope Analysis in Ecology
- Diet and metabolism studies
- Soil and Water Nutrient Dynamics
- Liver Disease Diagnosis and Treatment
- Dietary Effects on Health
- Vibrio bacteria research studies
- Edible Oils Quality and Analysis
- Cholesterol and Lipid Metabolism
University of Vienna
2020-2025
Medical University of Vienna
2023-2025
Ecologie Microbienne Lyon
2023-2024
Universidade do Porto
2014-2020
Bacterial diversity from McMurdo Dry Valleys in Antarctica, the coldest desert on earth, has become more easily assessed with development of High Throughput Sequencing (HTS) techniques. However, some remains inaccessible by power sequencing. In this study, we combine cultivation and HTS techniques to survey actinobacteria cyanobacteria along different soil endolithic micro-environments Victoria Valley Valleys. Our results demonstrate that distribution is driven environmental forces,...
Abstract Microbial growth and carbon use efficiency (CUE) are central to the global cycle, as microbial remains form soil organic matter. We investigated how future changes may affect growth, respiration, CUE. aimed elucidate response multiple climate change drivers across growing season whether effects of on physiology additive or interactive. measured CUE, respiration at three time points in a field experiment combining levels temperature atmospheric CO 2 , summer drought. Here we show...
Microbial community analysis via marker gene amplicon sequencing has become a routine method in the field of soil research. In this perspective, we discuss technical challenges and limitations present statistical experimental approaches that can help addressing spatio-temporal complexity high diversity organisms therein. We illustrate impact compositionality on interpretation relative abundance data effects sample replication power analysis. Additionally, argue for need increased study...
Abstract Nitrification is a fundamental process in terrestrial nitrogen cycling. However, detailed information on how climate change affects the structure of nitrifier communities lacking, specifically from experiments which multiple factors are manipulated simultaneously. Consequently, our ability to predict soil (N) cycling will future limited. We conducted field experiment managed grassland and simultaneously tested effects elevated atmospheric CO2, temperature, drought abundance active...
Global warming increases soil temperatures and promotes faster growth turnover of microbial communities. As cell walls contain a high proportion organic nitrogen, higher rate microbes should also be reflected in an accelerated nitrogen cycling soil. We used metatranscriptomics metagenomics approach to demonstrate that the relative transcription level genes encoding enzymes involved extracellular depolymerization high-molecular-weight was medium-term (8 years) long-term (>50 warmed soils than...
Depolymerization of high-molecular weight organic nitrogen (N) represents the major bottleneck soil N cycling and yet is poorly understood compared to subsequent inorganic processes. Given importance rise global change, we investigated responses protein depolymerization microbial amino acid consumption increased temperature, elevated atmospheric CO2 , drought. The study was conducted in a change facility managed montane grassland Austria, where (eCO2 ) temperature (eT) were stimulated for 4...
How soil microorganisms respond to global warming is key infer future soil-climate feedbacks, yet poorly understood. Here, we applied metatranscriptomics investigate microbial physiological responses medium-term (8 years) and long-term (>50 subarctic grassland of +6°C. Besides indications for a community-wide up-regulation centralmetabolic pathways cell replication, observed down-regulation the bacterial protein biosynthesis machinery in warmed soils, coinciding with lower biomass, RNA,...
Contaminations are challenging for monocultures, as they impact the culture conditions and thus influence growth of target organism overall biomass composition. In phycology, axenic cultures comprising a single living species commonly strived both basic research industrial applications, because contaminants reduce significance analytic purposes interfere with safety quality commercial products. We aimed to establish Limnospira fusiformis, known food additive "Spirulina". Axenicity is it...
Recent studies have suggested the link between inter-individual behavioural variation (i.e., animal personality) and gut microbiota. Non-human primates living under controlled conditions are valuable models to investigate diet-independent microbiome-host interactions. In this study, we investigated links specific microbiota members personality traits, as well group membership, sex, age class, breeding status relatedness of 26 captive common marmosets (Callithrix jacchus), maintained same...
Olive oil, rich in oleic acid, is often regarded as a healthier alternative to animal fats high saturated fatty acids and plant oils oxidizable polyunsaturated acids. However, the redox biological implications health effects of oxidized olive oil (ox-OO) remain underexplored. Our study investigated its impact on lipid metabolism, intestinal hepatic inflammation, gut microbiota. Female C57BL/6J mice were fed either standard normal (NFD), high-fat diet (HFD), an NFD-ox-OO or HFD-ox-OO, which...
Growing bacteria, alongside fungi, are the productive core of soil microbiome. They assimilate organic matter and drive biogeochemical transformations. While recent evidence suggests that large parts bacterial community transcriptionally or translationally active, only a subset bacteria actively divides at any given time. However, proportion dividing their responses to environmental change remain poorly understood.Using more than 76,000 taxon-specific growth estimates inferred by...
Previously we reported a microbiota-dependent caloric restriction (CR)-triggered increase in the levels of taurine and taurine-conjugated bile acids (BA) gut. Now, show that restrictive diets, including intermittent fasting fasting-mimicking diet, had similar impact to CR. The type cage bedding CR mice were housed with affected BAs ileum. Removal neutralized phenotype terms levels, deconjugation, fecal microbiota composition. Microbiota transplant from increased deconjugation. Inhibition...
Polar ecosystems are generally limited in nitrogen (N) nutrients, and the patchy availability of N is partly determined by biological pathways, such as nitrification, which carried out distinctive prokaryotic functional groups. The activity diversity microorganisms strongly influenced environmental conditions. However, we know little attributes that control distribution specific microbial groups, nitrifiers, extreme cold environments how they may respond to change. To ascertain relationships...
Severe brain damage is common among premature infants, and the gut microbiota has been implicated in its pathology. Although order of colonizing bacteria well described, mechanisms underlying aberrant assembly remain elusive. Here, we employed long-read nanopore sequencing to assess abundances microbial species their functional genomic potential stool samples from a cohort 30 extremely infants. We identify several key traits significantly associated with severe damage, such as for nitrate...
Although tailed bacteriophages (phages) of the class Caudoviricetes are thought to constitute most abundant and ecologically relevant group phages that can integrate their genome into host chromosome, it is becoming increasingly clear other prophages widespread. Here, we show derived from filamentous tailless with sizes below 16 kb make up majority in marine bacteria genus Vibrio. To estimate prophage prevalence unaffected by database biases, combined comparative genomics chemical induction...
AME Aquatic Microbial Ecology Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 80:167-180 (2017) - DOI: https://doi.org/10.3354/ame01847 Environmental controls on estuarine nitrifying communities along a salinity gradient Maria Monteiro1,*, Joana Séneca1,2, Luís Torgo2, Daniel F. R. Cleary3, Newton C. M. Gomes3, Alyson E. Santoro4,5, Catarina Magalhães1 1Novo Edifício do Terminal de Cruzeiros Porto...
Soil microbial communities are central to understanding interactions between soil and climate change by controlling  major carbon nutrient fluxes, such as organic matter formation decomposition. In addition, respond sensitively  can control the magnitude direction of potential feedback climate. Tropical forests have a crucial role sink reduce elevated atmospheric CO2 (eCO2), but they rely on access nutrients from matter. However, especially in tropical areas, effects...
Abstract Like many marine invertebrates, lucinid clams have an intimate relationship with beneficial sulfur-oxidizing bacteria located within specialized gill cells known as bacteriocytes. Most previous research has focused on the symbionts in gills of these (and other) symbiotic bivalves, often assuming that only persistently colonize gills, at least adult stage. We used 16S rRNA gene sequencing and digital polymerase chain reaction symbiont-specific primers targeting soxB foot, mantle,...
Abstract How soil microorganisms respond to global warming is key infer future soil-climate feedbacks, yet poorly understood. Here we applied metatranscriptomics investigate microbial physiological responses medium- (8 years) and long-term (>50 subarctic grassland of +6 °C. Besides indications for a community-wide upregulation central metabolisms cell replication observed downregulation the protein biosynthesis machinery in warmed soils, coinciding with lower biomass, RNA, substrate...
Microbial community analysis via marker gene amplicon sequencing has become a routine method in the field of soil research. In this perspective, we discuss technical challenges and limitations studies present statistical experimental approaches that can help addressing spatio-temporal complexity high diversity organisms therein. We illustrate impact compositionality on interpretation relative abundance data effects sample replication power analysis. Additionally, argue for need increased...