D. G. Weissbrodt

Mixotrophic microalgal mixed cultures for cheese whey valorization

This study explores using acetate from cheese whey fermentation to support microalgal growth in mixotrophic conditions, showing acetate's effectiveness as a carbon source and the benefits of coupling fermentation with microalgae cultivation.

The fate of sulfamethoxazole and trimethoprim in a micro-aerated anaerobic membrane bioreactor: implications for antibiotic resistance spreading

This study investigates the fate of sulfamethoxazole and trimethoprim in a micro-aerated anaerobic membrane bioreactor, finding high antibiotic removal and increased antibiotic resistance gene abundance.

Microbiome, resistome and mobilome of chlorine-free drinking water treatment systems

This study analyzes antibiotic resistance determinants in chlorine-free drinking water treatment plants using metagenomics and quantitative PCR, finding reduced ARGs and MGEs despite increases in disinfection sub-units.

Production of extracellular polymeric substances in granular sludge under selection for Accumulibacter and Competibacter

This study investigates how microbial selection influences extracellular polymeric substance (EPS) production in granular sludge, showing that slow-growing organisms enhance granulation and EPS formation.

Thermal and alkaline pre-treatments of inoculum halt methanogenesis and enables cheese whey valorization by batch acidogenic fermentation

The paper shows that thermal and alkaline pre-treatments of inoculum in batch acidogenic fermentation of cheese whey increase volatile fatty acid production while inhibiting methanogenesis.

Enrichment and application of bacterial sialic acids containing polymers from the extracellular polymeric substances of Candidatus Accumulibacter

This study identifies high molecular weight polysaccharides in Ca. Accumulibacter EPS as rich in NulOs and suggests their potential for sepsis treatment.

Catch me if you can: Capturing extracellular DNA transformation in mixed cultures via Hi-C sequencing

This study demonstrates that microorganisms in activated sludge can acquire synthetic plasmids via transformation under kanamycin pressure, using Hi-C sequencing to identify transformants.

Turnover of the extracellular polymeric matrix in an EBPR microbial community

The paper measures EPS turnover in a PAO-enriched microbial community and finds similar turnover rates for EPS proteins and intracellular proteins, with no preferential consumption by other microbes.

Metagenomic profiling and transfer dynamics of antibiotic resistance determinants in a full-scale granular sludge wastewater treatment plant

This study tracks antibiotic resistance gene (ARG) and mobile genetic element (MGE) transfer in a wastewater treatment plant, showing exDNA plays a significant role in AMR dissemination.

Adaptation of anammox bacteria to low temperature via gradual acclimation and cold shocks: distinctions in protein expression, membrane composition and activities

This study compares gradual temperature decrease and cold shocks for adapting anammox bacteria to low temperatures, finding cold shocks more effective in maintaining metabolic activity and protein expression.

Syntrophy between fermentative and purple phototrophic bacteria for carbohydrate-based wastewater treatment

This study investigates the syntrophic interactions between fermentative and purple phototrophic bacteria in wastewater treatment, showing that continuous culturing supports their coexistence and metabolic synergy.

Production of nonulosonic acids in the extracellular polymeric substances of Candidatus Accumulibacter phosphatis

The paper investigates the production of nonulosonic acids (NulOs) in Candidatus Accumulibacter phosphatis biofilms using proteomic, mass spectrometry, and lectin-binding analyses, revealing their diversity and ecological significance.

Antibiotic resistance genes and mobile genetic elements removal from treated wastewater by sewage-sludge biochar and iron-oxide coated sand

Effects of light/dark diel cycles on the photoorganoheterotrophic metabolism of Rhodopseudomonas palustris for differential electron allocation to PHAs and H2

This study examines how light/dark cycles affect electron allocation in Rhodopseudomonas palustris, showing that PHAs are prioritized over H2 production under diel conditions.

Control tools to selectively produce purple bacteria for microbial protein in raceway reactors

This paper develops control tools to selectively grow purple non-sulfur bacteria in raceway reactors for microbial protein production, achieving high selectivity and cost efficiency.

Enriching and aggregating purple non-sulfur bacteria in an anaerobic sequencing-batch photobioreactor for nutrient capture from wastewater

This study enriches purple non-sulfur bacteria in an anaerobic photobioreactor to achieve high nutrient removal rates from wastewater.

On anammox activity at low temperature: effect of ladderane composition, process conditions and dominant anammox population

This study investigates how anammox activity is affected by temperature and lipid composition in 14 anammox communities, finding that lipid structure and cold adaptation significantly influence performance at low temperatures.

Anticipating xenogenic pollution at the source: Impact of sterilizations on DNA release from microbial cultures

The paper assesses DNA release from microbial cultures after sterilization and finds that current methods do not prevent DNA contamination, with autoclaving being the most DNA-damaging.