Biology

Often overlooked until now: symbioses could be a driving force for the emergence of biodiversity. A case where bacteria live in aphids shows that this can even have practical implications for biological pest control.

Bioengineers at EPFL have found a way to radically increase the efficiency of single-cell RNA-sequencing, a powerful tool that can “read” the genetic profile of an individual cell.

Those who have just undergone surgery in the hospital, with their weakened immune systems, are easy prey for pathogens that lurk on a wide variety of surfaces. Even careful disinfection can only partially prevent these hospital-acquired infections. One hope in the fight against the pathogenic bacteria are bacteriophages. Eawag researchers were able to show that they improve the removal of pathogens from surfaces, especially in combination with chemical disinfection.

A team of researchers led by Professor Yimon Aye at EPFL’s School of Basic Sciences has developed a new screening method to explore an important biological process known as electrophile signaling.

Viruses that infect bacteria could one day replace antibiotics because they precisely attack only specific pathogens. Researchers at ETH Zurich are now showing that this is not always the case. This new finding is important because bacterial viruses can transfer antibiotic resistance genes.