A5036789757- Microbial Community Ecology and Physiology
- Protist diversity and phylogeny
- Vibrio bacteria research studies
- Molecular Communication and Nanonetworks
- Marine and coastal ecosystems
- Plant and fungal interactions
- Microfluidic and Bio-sensing Technologies
- Micro and Nano Robotics
- Methane Hydrates and Related Phenomena
- Biomedical and Engineering Education
- Marine Biology and Ecology Research
- Bacterial Genetics and Biotechnology
- SARS-CoV-2 detection and testing
- bioluminescence and chemiluminescence research
- Gene Regulatory Network Analysis
- Geology and Paleoclimatology Research
- Legume Nitrogen Fixing Symbiosis
- Coral and Marine Ecosystems Studies
- Algal biology and biofuel production
- Probiotics and Fermented Foods
ETH Zurich
2018-2025
University of Southern California
2024
IIT@MIT
2024
Institute of Environmental Engineering
2020-2024
University of Lausanne
2018
Abstract The ability of marine bacteria to direct their movement in response chemical gradients influences inter-species interactions, nutrient turnover, and ecosystem productivity. While many are chemotactic towards small metabolites, organic matter is predominantly composed large molecules polymers. Yet, the signalling role these largely unknown. Using situ laboratory-based chemotaxis assays, we show that strongly attracted abundant algal polysaccharides laminarin alginate. Unexpectedly,...
Coccolithophores, who contribute approximately 1-10% of phytoplankton biomass, are crucial players in the ocean's biogeochemical cycles. Significant contributions come from bloom-forming species including Gephyrocapsa huxleyi (formerly Emiliania huxleyi), which has served as a model system for investigating algal-bacterial and agal-viral interactions well algal fitness responses to environmental changes. Coccolithophores follow biphasic lifecycle, existing motile haploid non-motile diploid...
Coptiotrophic marine bacteria contribute significantly to carbon storage in the ocean by remineralizing organic present nutrient-rich hotspots amidst oligotrophic waters. Motility is both highly beneficial and costly such environments, presenting copiotrophs with a risk--reward trade-off search behavior. Here we studied motility endurance of 26 isolates using video microscopy cell tracking over two days starvation. We found that this cost-benefit results distinct dichotomy among bacteria:...
Most of Earth’s biomass is composed polysaccharides. During decomposition, polysaccharides are degraded by heterotrophic bacteria as a nutrient and energy source thereby partly remineralized into CO 2 . As heterogeneously distributed in nature, following the colonization degradation polysaccharide hotspot cells need to reach new hotspots. Even though many studies indicate that these degradation-dispersal cycles contribute carbon flow marine systems, we know little about how alternate between...
Microbial behaviors, such as motility and chemotaxis (the ability of a cell to alter its movement in response chemical gradient), are widespread across the bacterial archaeal domains. Chemotaxis can result substantial resource acquisition advantages heterogeneous environments. It also plays crucial role symbiotic interactions, disease, global processes, biogeochemical cycling. However, current techniques restrict research laboratory not easily applicable field. Presented here is step-by-step...
Escherichia coli, commonly used in chemotaxis studies, is attracted mostly by amino acids, sugars, and peptides. We envisioned modifying the specificity of E. coli expressing heterologous chemoreceptors from Pseudomonas putida enabling attraction either to toluene or benzoate. The mcpT gene encoding type 40-helical bundle (40H) methyl-accepting chemoreceptor for MT53 pcaY 40H receptor benzoate related molecules P. F1 were expressed trg promoter on a plasmid motile wild-type MG1655. cells...
Abstract Most of Earth’s biomass is composed polysaccharides. During decomposition, polysaccharides are degraded by heterotrophic bacteria as a nutrient and energy source thereby partly remineralized into CO 2 . As heterogeneously distributed in nature, following the colonization degradation polysaccharide hotspot cells need to reach new hotspots. Even though many studies indicate that these degradation-dispersal cycles contribute carbon flow marine systems, we know little about how...
Most of Earth’s biomass is composed polysaccharides. During decomposition, polysaccharides are degraded by heterotrophic bacteria as a nutrient and energy source thereby partly remineralized into CO 2 . As heterogeneously distributed in nature, following the colonization degradation polysaccharide hotspot cells need to reach new hotspots. Even though these degradation-dispersal cycles an integral part global carbon cycle, we know little about how alternate between motility, which...
Most of Earth’s biomass is composed polysaccharides. During decomposition, polysaccharides are degraded by heterotrophic bacteria as a nutrient and energy source thereby partly remineralized into CO 2 . As heterogeneously distributed in nature, following the colonization degradation polysaccharide hotspot cells need to reach new hotspots. Even though many studies indicate that these degradation-dispersal cycles contribute carbon flow marine systems, we know little about how alternate between...
Most of Earth’s biomass is composed polysaccharides. During decomposition, polysaccharides are degraded by heterotrophic bacteria as a nutrient and energy source thereby partly remineralized into CO 2 . As heterogeneously distributed in nature, following the colonization degradation polysaccharide hotspot cells need to reach new hotspots. Even though many studies indicate that these degradation-dispersal cycles contribute carbon flow marine systems, we know little about how alternate between...
ABSTRACT Escherichia coli , commonly used in chemotaxis studies, is attracted mostly by amino acids, sugars and peptides. We envisioned modifying specificity of E. expressing heterologous chemoreceptors from Pseudomonas putida enabling attraction either to toluene or benzoate. The mcpT gene encoding the type 40H methyl-accepting chemoreceptor for MT53 pcaY receptor benzoate related molecules P. F1 were expressed trg promoter on a plasmid motile wild-type MG1655. cells McpT accumulated...
Microbial behaviors, such as motility and chemotaxis (the ability of a cell to alter its movement in response chemical gradient), are widespread across the bacterial archaeal domains. Chemotaxis can result substantial resource acquisition advantages heterogeneous environments. It also plays crucial role symbiotic interactions, disease, global processes, biogeochemical cycling. However, current techniques restrict research laboratory not easily applicable field. Presented here is step-by-step...
In 2020 the world was hit by COVID-19 pandemic putting entire governments and civil societies in crisis mode. Around globe unprecedented shortages of equipment qualified personnel were reported hospitals diagnostic laboratories. When a is global, supply chains are strained worldwide external help may not be readily available. Switzerland, as part efforts Swiss National Science Task Force, we developed tailor-made web-based tool where needs offers for critical laboratory expertise can brought...