Photodynamic Inactivation of microorganisms for agricultural applications.

Autor: Fellner, Andreas, Hamminger, Christoph, Jernej, Linda, Wimmer, Annette, Liu, Jun, Fefer, Michael, Plaetzer, Kristjan
Zdroj: Photodiagnosis & Photodynamic Therapy; Apr2024, Vol. 46, pN.PAG-N.PAG, 1p
Abstrakt: Plant pathogens cause severe harvest losses and bacterial food contaminations kill people worldwide. Photodynamic Inactivation (PDI) might be applicable to control pathogens in agriculture. We here test PDI based on Sodium Magnesium Chlorophyllin and LED light or sunlight activation against relevant bacterial and fungal plant pathogens as well as Listeria on seeds and sprouts. Photodynamic Inactivation is highly effective against Gram+ and Gram- bacterial plant pathogens in suspension and in situ on leaves with a reduction of microbial count for up to seven log steps. Seeds can be effectively decontaminated from Listeria innocua by PDI, and the effect is propagated to sprouts. If based on natural photosensitizers such as Sodium Magnesium Chlorophyllin, PDI, might allow for effective, ecofriendly and economic control of plant pathogens and microbial contaminations of seeds as food. [ABSTRACT FROM AUTHOR]
Databáze: Supplemental Index