Abstrakt
Ultra-weak photon emission results from reactions of reactive oxygen species and biomolecules; therefore, this method can tell us more about oxidative processes in living organisms. Deeper understanding of processes leading to the formation of ultra-weak photon emission and how the basic physical, chemical and biological factors influence it can give us some part of missing information in the jigsaw puzzle called "How to used UPE as a tool for diagnostic purposes in medicine, agriculture or food chemistry". Yeast Saccharomyces cerevisiae was chosen as a model organism.