Prions Play Powerful Role in the Survival and Evolution of Wild Yeast Strains
Thursday, February 16, 2012 - 11:02
in Biology & Nature
Whitehead Institute scientists have tested nearly 700 wild yeast strains isolated from diverse environments for the presence of known and unknown prion elements, finding them in one third of all strains. All the prions appear capable of creating diverse new traits, nearly half of which are beneficial. These unexpected findings stand as strong evidence against the common argument that prions are merely yeast "diseases" or rare artifacts of laboratory culture.