 This study investigated the effect of various types of infections on the local perium plant pH. It was found that certain types of bacteria and fungi could cause a decrease in the local perium plant pH, while others did not. Additionally, it was discovered that the type of infection had an impact on the magnitude of the pH change. The researchers also developed a new electrode made of polyaniline and poly, two methyl, two oxaziline, that could detect these changes in pH. This article was authored by Elena Tomsik, Christina Gunnar, Therese Krunklova, and others.